pax_global_header00006660000000000000000000000064122073422310014506gustar00rootroot0000000000000052 comment=bf8d0e60c420dc588c1cabae90bc3b76d85e39d5 redis-2.6.16/000077500000000000000000000000001220734223100127105ustar00rootroot00000000000000redis-2.6.16/.gitignore000066400000000000000000000005141220734223100147000ustar00rootroot00000000000000.*.swp *.o *.log dump.rdb redis-benchmark redis-check-aof redis-check-dump redis-cli redis-sentinel redis-server doc-tools release misc/* src/release.h appendonly.aof SHORT_TERM_TODO release.h src/transfer.sh src/configs redis.ds src/redis.conf deps/lua/src/lua deps/lua/src/luac deps/lua/src/liblua.a .make-* .prerequisites *.dSYM redis-2.6.16/00-RELEASENOTES000066400000000000000000000511341220734223100147450ustar00rootroot00000000000000Redis 2.6 release notes ======================= ** IMPORTANT ** Check the 'Migrating from 2.4 to 2.6' section at the end of this file for information about what changed between 2.4 and 2.6 and how this may affect your application. -------------------------------------------------------------------------------- Upgrade urgency levels: LOW: No need to upgrade unless there are new features you want to use. MODERATE: Program an upgrade of the server, but it's not urgent. HIGH: There is a critical bug that may affect a subset of users. Upgrade! CRITICAL: There is a critical bug affecting MOST USERS. Upgrade ASAP. -------------------------------------------------------------------------------- --[ Redis 2.6.16 ] Release date: 28 Aug 2013 UPGRADE URGENCY: MODERATE. * [FIX] Stop writes when fork() fails when trying to BGSAVE. BGSAVE errors were trapped only in the case the saving child failed, so the fork() error was no trapped as no child is created at all. * [FIX] Fix a serious memory efficiency regression, Redis 2.6.16 is significantly better with large values (>= a few kbytes) and will be able to store two times the amount of data compared to Redis 2.6.15 when values are in that range. * [FIX] Fixed an issue with Table conversion in the lua-cmsgpack library exposed by the Redis scripting engine. * [NEW] DEBUG SDSLEN was introduced to debug memory inefficiencies due to SDS allocation more easily. --[ Redis 2.6.15 ] Release date: 21 Aug 2013 UPGRADE URGENCY: MODERATE, upgrade ASAP only if you experience issues related to the expired keys collection algorithm, or if you use the ZUNIONSTORE command. * [FIX] Improved expired keys collection algorithm. Even under heavy load keys to be expired can't accumulate because of lack of CPU time. * [FIX] Fixed Issue #1240, ZUNIONSTORE could lead to wrong result. * [NEW] redis-benchmark improvements. * [NEW] dict.c API wrong usage detection. WARNING: redis-benchmark released with 2.6.15 features non backward compatible change in the way the random arguments are specified, use the --help option for more information. --[ Redis 2.6.14 ] Release date: 20 Jun 2013 UPGRADE URGENCY: HIGH because of the following two issues: * Lua scripting + Replication + AOF in slaves problem (see Issue #1164). * AOF + expires possible race condition (see Issue #1079). * [FIX] AOF bug: expire could be removed from key on AOF rewrite. * [FIX] Allow writes from scripts called by AOF loading in read-only slaves. * [FIX] Sentinel: parse new version of INFO replication output correctly. * [NEW] Reset masterauth if an empty string is configured. --[ Redis 2.6.13 ] UPGRADE URGENCY: MODERATE, nothing very critical but upgrading is suggested if you experienced: 1) Strange issues with Lua scripting. 2) Not reconfigured reappearing master using Sentinel. 3) Server continusly trying to save on save error. This version of Redis may also help with AOF and slow / busy disks and latency issues. * [FIX] Throttle BGSAVE attempt on saving error. * [FIX] redis-cli: raise error on bad command line switch. * [FIX] Redis/Jemalloc Gitignore were too aggressive. * [FIX] Test: fix RDB test checking file permissions. * [FIX] Sentinel: always redirect on master->slave transition. * [FIX] Lua updated to version 5.1.5. Fixes rare scripting issues. * [NEW] AOF: improved latency figures with slow/busy disks. * [NEW] Sentinel: turn old master into a slave when it comes back. * [NEW] More explicit panic message on out of memory. * [NEW] redis-cli: --latency-history mode implemented. --[ Redis 2.6.12 ] UPGRADE URGENCY: MODERATE, nothing very critical but a few non trivial bugs. * [BUGFIX] redis-cli --bigkeys: don't crash with empty DB. * [BUGFIX] stop-writes-on-bgsave-error now works in redis.conf * [BUGFIX] Don't crash at startup if RDB is there but can't be opened. * [BUGFIX] Initial value for master_link_down_since_seconds is now huge. * [BUGFIX] Allow SELECT while loading the DB. * [BUGFIX] Don't replicate/AOF an empty MULTI/EXEC if the transaction is empty or containing just read-only commands. * [BUGFIX] EXPIRE should not be able to resurrect keys (see issue #1026). * [IMPROVED] Extended SET back ported from Redis 2.8 / unstable See http://redis.io/commands/set for more information. * [IMPROVED] Test suite improved. --[ Redis 2.6.11 ] UPGRADE URGENCY: LOW, however updating is encouraged if you have many instances per server and you want to lower the CPU / energy usage. * [BUGFIX] Replication: more strict error checking for master PING reply. * [BUGFIX] redis-cli: use keepalive socket option for improved reliability. * [BUGFIX] Allow AUTH while loading the DB in memory. * [BUGFIX] Don't segfault on unbalanced quotes while parsing config file. * [BUGFIX] Don't segfault if command gets propagated to AOF / replication link as another command name that was renamed in redis.conf * [IMPROVED] serverCron() frequency is now a runtime parameter (was REDIS_HZ). * [IMPROVED] Use a lot less CPU when idle, even with many configured DBs. --[ Redis 2.6.10 ] UPGRADE URGENCY: MODERATE, this release contains many non-critical fixes and many small improvements. * [BUGFIX] redis-cli --rdb, fixed when the server sends newlines to ping. * [BUGFIX] redis-cli, minor fixes on connection handling, prompt. * [BUGFIX] Slow log: don't log EXEC, just executed commands. * [BUGFIX] On failed shutdown don't try again and again compulsively. * [BUGFIX] Fix build on sunos without backtrace(). * [BUGFIX] UNSUBSCRIBE and PUNSUBSCRIBE: always provide a reply (see 742e580) * [BUGFIX] Lua struct library was broken, upgraded. * [BUGFIX] Fix a bug in srandmemberWithCountCommand() with count argument. * [BUGFIX] Test: disable clients timeout to prevent issues on slow systems. * [BUGFIX] Sentinel: don't advertise the promoted slave as master too early. * [IMPROVED] Whitelist SIGUSR1, see http://redis.io/topics/signals. * [IMPROVED] Simpler to understand redis-cli --bigkeys output. * [IMPROVED] Test now works with tclsh > 8.5. * [IMPROVED] Added option to turn of the Nagle algorithm in slave socket. * [IMPROVED] Optionally use SO_KEEPALIVE to detect dead peers. --[ Redis 2.6.9 ] UPGRADE URGENCY: MODERATE if you use replication. * [BUGFIX] Changing master at runtime (SLAVEOF command) in presence of network problems, or in very rapid succession, could result in non-critical problems (GitHub Issue #828). * [IMPROVED] CLINGET GETNAME and SETNAME to set and query connection names reported by CLIENT LIST. Very useful for debugging of problems. * [IMPROVED] redis-cli is now able to transfer an RDB file from a remote server to a local file using the --rdb command line option. --[ Redis 2.6.8 ] UPGRADE URGENCY: MODERATE if you use Lua scripting. Otherwise LOW. * [BUGFIX] Multiple fixes for EVAL (issue #872). * [BUGFIX] Fix overflow in mstime() in redis-cli and benchmark. * [BUGFIX] Fix Linux / PPC64 behavior by correcting endianess detection. * [BUGFIX] Fix NetBSD build by defining _XOPEN_SOURCE appropriately. * [BUGFIX] Added missing license and copyright in a few places. * [BUGFIX] Better error reporting when fd event creation fails. --[ Redis 2.6.7 ] UPGRADE URGENCY: MODERATE (unless you BLPOP using the same key multiple times). * [BUGFIX] Don't crash if BLPOP & co are called with the same key repeated multiple times (Issue #801). --[ Redis 2.6.6 ] UPGRADE URGENCY: CRITICAL if you experienced one more more crashes. MODERATE if Redis is running fine for you. * [BUGFIX] Jemalloc updated to 3.2.0. --[ Redis 2.6.5 ] UPGRADE URGENCY: MODERATE Warning: this release of Redis introduces a different behavior in MULTI/EXEC handling of errors. This was done because the new behavior is safer compared to the old one, and should not break any code targeting Redis 2.6 in a critical way. For more information check http://redis.io/topics/transactions * [IMPROVED] RDB/AOF childern now log amount of additional memory used because of copy on write. * [BUGFIX] MIGRATE non critical fixes (see commits for details). * [BUGFIX] MULTI/EXEC: now EXEC aborts on errors before EXEC. * [BUGFIX] Fix integer overflow in zunionInterGenericCommand resulting into Z[INTER|UNION][STORE] commands to crash under extremely unlikely conditions (almost impossible in real world). * [BUGFIX] EVALSHA is now case insensitive (and will not crash). --[ Redis 2.6.4 ] UPGRADE URGENCY: LOW * [IMPROVED] BSD license and copyright notice added to every .c and .h file. --[ Redis 2.6.2 ] UPGRADE URGENCY: LOW * [BUGFIX] The compilation fix for RHLE5 in 2.6.1 was broken. Fixed. * [IMPROVED] Linenoise updated, now supports Ctrl+w. ---[ Redis 2.6.1 ] UPGRADE URGENCY: LOW * [BUGFIX] Compilation on Linux < 2.6.17 or glibc < 2.6 fixed (RHLE5 & co). ---[ Redis 2.6.0 ] UPGRADE URGENCY: HIGH * [BUGFIX] Allow AUTH when server is in -BUSY state because of a slow script. * [BUGFIX] MULTI/EXEC flow now makes sense when observed in MONITOR * [BUGFIX] SCRIPT KILL now uses different error prefixes for different errors. * [BUGFIX] Default memory limit for 32bit archs lowered from 3.5 to 3 GB. * [BUGFIX] redis-check-dump is now compatible with RDB files generated by 2.6. * [IMPROVED] New field in INFO: slave_read_only. ---[ Redis 2.5.14 (2.6 Release Candidate 8) ] * [BUGFIX] Fixed compilation on FreeBSD. * [IMPROVED] SRANDMEMBER that returns multiple random elements. * [IMPROVED] Sentinel backported to 2.6. It will be taken in sync with 2.8. * [IMPROVED] Helper function for scripting to return errors and status replies. * [IMPROVED] SORT by nosort [ASC|DESC] uses sorted set elements ordering. * [BUGFIX] Better resistence to system clock skew. * [IMPROVED] Warn the user when the configured maxmemory seems odd. * [BUGFIX] Hashing function is now murmurhash2 for security purposes. * [IMPROVED] Install script no longer uses a template but redis.conf itself. ---[ Redis 2.5.13 (2.6 Release Candidate 7) ] UPGRADE URGENCY: HIGH * [BUGFIX] Theoretical bug in ziplist fixed. * [BUGFIX] Better out of memory handling (Log produced in log file). * [BUGFIX] Incrementally flush RDB file on slave side while performing the first synchronization with the master. This makes Redis less blocking in environments where disk I/O is slow. * [BUGFIX] Don't crash with Lua's redis.call() without arguments. * [BUGFIX] Don't crash after a big number of Lua calls on 32 bit systems because of a failed assertion. * [BUGFIX] Fix SORT behaviour when called from scripting. * [BUGFIX] Adjust slave PING period accordingly to REDIS_HZ define. * [BUGFIX] BITCOUNT: fix crash on overflowing arguments. * [BUGFIX] Return an error when SELECT argument is not an integer. * [BUGFIX] Blocking operations on lists were completely reimplemented for correctness. Now blocking list ops and pushes originated from Lua scripts will play well together and will be replicated and transmitted to the AOF correctly. * [IMPROVED] Send async PING before starting replication to avoid blocking if master allows us to connect but it is actually not able to reply. * [IMPROVED] Support slave-priority for Redis Sentinel. * [IMPROVED] Hiredis library updated. ---[ Redis 2.5.12 (2.6 Release Candidate 6) ] UPGRADE URGENCY: MODERATE. * [BUGFIX] Fixed a timing attack on AUTH (Issue #560). * [BUGFIX] Don't assume that "char" is signed. * [BUGFIX] Check that we have connection before enabling pipe mode. * [BUGFIX] Use the optimized version of the function to convert a double to its string representation. Compilation was disabled because of a typo in the #if statement. * [IMPROVED} REPLCONF internal command introduced, now INFO shows slaves with correct port numbers. This makes 2.5.12 Redis Sentinel compatible. * [IMPROVED] Truncate short write from the AOF for a cleaner restart. On short writes (for instance out of space) Redis will now try to remove the half-written data so that the next restart will work without the need for the "redis-check-aof" utility. * [IMPROVED] New in INFO: aof_last_bgrewrite_status * [IMPROVED] Allow Pub/Sub in contexts where other commands are blocked. * [BUGFIX] mark fd as writable when EPOLLERR or EPOLLHUP is returned by epoll_wait. ---[ Redis 2.5.11 (2.6 Release Candidate 5) ] UPGRADE URGENCY: HIGH. * [BUGFIX] Fixed Hash corruption when loading an RDB file generated by previous versions of Redis that encoded hashes using a different ziplist encoding format for small integers. All the fileds that are integers in the range 0-255 may not be recognized, or duplicated un updates, causing a crash when the ziplist is converted to a real hash. (Issue #547). * [BUGFIX] Fixed the count of memory used by output buffers in the setDeferredMultiBulkLength() function. ---[ Redis 2.5.10 (2.6 Release Candidate 4) ] UPGRADE URGENCY: HIGH. * [BUGFIX] Allow PREFIX to be overwritten on "make install". * [BUGFIX] Run the test with just one client if the computer is slow. * [BUGFIX] Event port support in our event driven libray. * [BUGFIX] Jemalloc updated to 3.0.0. This fixes a possibly AOF rewrite issue. See https://github.com/antirez/redis/issues/504 for info. * [BUGFIX] Fixed issue #516: ZINTERSTORE / ZUNIONSTORE with mixed sets/zsets. * [BUGFIX] Set fd to writable when poll(2) detects POLLERR or POLLHUP event. * [BUGFIX] Fixed RESTORE hash failure (Issue #532). * [IMPROVED] Allow an AOF rewrite buffer > 2GB (Related to issue #504). * [IMPROVED] Server cron function frequency is now configurable (REDIS_HZ). * [IMPROVED] Better, less blocking expired keys collection algorithm. * [FEATURE] New commands: BITOP and BITCOUNT. * [FEATURE] redis-cli --pipe for mass import. What's new in Redis 2.5.9 (aka 2.6 Release Candidate 3) ======================================================= UPGRADE URGENCY: critical, upgrade ASAP. * [BUGFIX] Fix for issue #500 (https://github.com/antirez/redis/pull/500). Redis 2.6-RC1 and RC2 may corrupt ziplist-encoded sorted sets produced by Redis 2.4.x. * [BUGFIX] Fixed several bugs in init.d script. * [BUGFIX] syncio.c functions modified for speed and correctness. On osx (and possibly other BSD-based systems) the slave would block on replication to send the SYNC command when the master was not available. This is fixed now, but was not affecting Linux installs. * Now when slave-serve-stale-data is set to yes and the master is down, instead of reporting a generic error Redis replies with -MASTERDOWN. What's new in Redis 2.5.8 (aka 2.6 Release Candidate 2) ======================================================= UPGRADE URGENCY: high for all the users of the KEYS command, otherwise low. * [BUGFIX] Fix for KEYS command: if the DB contains keys with expires the KEYS command may return the wrong output, having duplicated or missing keys. See issue #487 and #488 on github for details. What's new in Redis 2.5.7 (aka 2.6 Release Candidate 1) ======================================================= UPGRADE URGENCY: upgrade not recommended because this is an RC release. * This is the first release candidate for Redis 2.6. We are not aware of bugs, but part of this code is young and was never tested in production environments, so handle with care. An overview of new features and changes in Redis 2.6.x ====================================================== * Server side Lua scripting, see http://redis.io/commands/eval * Virtual Memory removed (was deprecated in 2.4) * Hardcoded limits about max number of clients removed. * AOF low level semantics is generally more sane, and especially when used in slaves. * Milliseconds resolution expires, also added new commands with milliseconds precision (PEXPIRE, PTTL, ...). * Better memory usage for "small" lists, ziplists and hashes when fields or values contain small integers. * Read only slaves. * New bit opeations: BITCOUNT and BITOP commands. * Clients max output buffer soft and hard limits. You can specifiy different limits for different classes of clients (normal,pubsub,slave). * More incremental (less blocking) expired keys collection algorithm, in practical terms this means that Redis is more responsive when a very big number of keys expire about at the same time. * AOF is now able to rewrite aggregate data types using variadic commands, often producing an AOF that is faster to save, load, and is smaller in size. * Every redis.conf directive is now accepted as a command line option for the redis-server binary, with the same name and number of arguments. * Hash table seed randomization for protection against collisions attacks. * Performances improved when writing large objects to Redis. * Integrated memory test, see redis-server --test-memory. * INCRBYFLOAT and HINCRBYFLOAT commands. * New DUMP, RESTORE, MIGRATE commands (back ported from Redis Cluster to 2.6). * CRC64 checksump in RDB files. * Better MONITOR output and behavior (now commands are logged before execution). * "Software Watchdog" feature to debug latency issues. * Significant parts of the core refactored or rewritten. New internal APIs and core changes allowed to develop Redis Cluster on top of the new code, however for 2.6 all the cluster code was removed, and will be released with Redis 3.0 when it is more complete and stable. * Redis ASCII art logo added at startup. * Crash report on memory violation or failed asserts improved significantly to make debugging of hard to catch bugs simpler. * redis-benchmark improvements: ability to run selected tests, CSV output, faster, better help. * redis-cli improvements: --eval for comfortable development of Lua scripts. * SHUTDOWN now supports two optional arguments: "SAVE" and "NOSAVE". * INFO output split into sections, the command is now able to just show pecific sections. * New statistics about how many time a command was called, and how much execution time it used (INFO commandstats). * More predictable SORT behavior in edge cases. * Better support for big endian and *BSD systems. * Build system improved. Migrating from 2.4 to 2.6 ========================= Redis 2.4 is mostly a strict subset of 2.6. However there are a few things that you should be aware of: * You can't use .rdb and AOF files generated with 2.6 into a 2.4 instance. * 2.6 slaves can be attached to 2.4 masters, but not the contrary, and only for the time needed to perform the version upgrade. There are also a few API differences, that are unlikely to cause problems, but it is better to keep them in mind: * SORT now will refuse to sort in numerical mode elements that can't be parsed as numbers. * EXPIREs now all have millisecond resolution (but this is very unlikely to break code that was not conceived exploting the previous resolution error in some way.) * INFO output is a bit different now, and contains empty lines and comments starting with '#'. All the major clients should be already fixed to work with the new INFO format. * Slaves are only read-only by default (but you can change this easily setting the "slave-read-only" configuration option to "no" editing your redis.conf or using CONFIG SET. The following INFO fields were renamed for consistency: changes_since_last_save -> rdb_changes_since_last_save bgsave_in_progress -> rdb_bgsave_in_progress last_save_time -> rdb_last_save_time last_bgsave_status -> rdb_last_bgsave_status bgrewriteaof_in_progress -> aof_rewrite_in_progress bgrewriteaof_scheduled -> aof_rewrite_scheduled The following redis.conf and CONFIG GET / SET parameters changed: * hash-max-zipmap-entries, now replaced by hash-max-ziplist-entries * hash-max-zipmap-value, now replaced by hash-max-ziplist-value * glueoutputbuf option was now completely removed (was deprecated) -------------------------------------------------------------------------------- Credits: Where not specified the implementation and design are done by Salvatore Sanfilippo and Pieter Noordhuis. Thanks to VMware for making all this possible. Also many thanks to all the other contributors and the amazing community we have. See commit messages for more credits. Cheers, Salvatore redis-2.6.16/BUGS000066400000000000000000000000641220734223100133730ustar00rootroot00000000000000Plese check https://github.com/antirez/redis/issues redis-2.6.16/CONTRIBUTING000066400000000000000000000026401220734223100145440ustar00rootroot00000000000000Note: by contributing code to the Redis project in any form, including sending a pull request via Github, a code fragment or patch via private email or public discussion groups, you agree to release your code under the terms of the BSD license that you can find in the COPYING file included in the Redis source distribution. You will include BSD license in the COPYING file within each source file that you contribute. # IMPORTANT: HOW TO USE REDIS GITHUB ISSUES * Github issues SHOULD ONLY BE USED to report bugs, and for DETAILED feature requests. Everything else belongs to the Redis Google Group. PLEASE DO NOT POST GENERAL QUESTIONS that are not about bugs or suspected bugs in the Github issues system. We'll be very happy to help you and provide all the support in the Redis Google Group. Redis Google Group address: https://groups.google.com/forum/?fromgroups#!forum/redis-db # How to provide a patch for a new feature 1. Drop a message to the Redis Google Group with a proposal of semantics/API. 2. If in steps 1 you get an acknowledge from the project leaders, use the following procedure to submit a patch: a. Fork Redis on github ( http://help.github.com/fork-a-repo/ ) b. Create a topic branch (git checkout -b my_branch) c. Push to your branch (git push origin my_branch) d. Initiate a pull request on github ( http://help.github.com/send-pull-requests/ ) e. Done :) Thanks! redis-2.6.16/COPYING000066400000000000000000000027171220734223100137520ustar00rootroot00000000000000Copyright (c) 2006-2012, Salvatore Sanfilippo All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Redis nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. redis-2.6.16/INSTALL000066400000000000000000000000131220734223100137330ustar00rootroot00000000000000See README redis-2.6.16/MANIFESTO000066400000000000000000000101771220734223100141660ustar00rootroot00000000000000[Note: this is the Redis manifesto, for general information about installing and running Redis read the README file instead.] Redis Manifesto =============== 1 - A DSL for Abstract Data Types. Redis is a DSL (Domain Specific Language) that manipulates abstract data types and implemented as a TCP daemon. Commands manipulate a key space where keys are binary-safe strings and values are different kinds of abstract data types. Every data type represents an abstract version of a fundamental data structure. For instance Redis Lists are an abstract representation of linked lists. In Redis, the essence of a data type isn't just the kind of operations that the data types support, but also the space and time complexity of the data type and the operations performed upon it. 2 - Memory storage is #1. The Redis data set, composed of defined key-value pairs, is primarily stored in the computer's memory. The amount of memory in all kinds of computers, including entry-level servers, is increasing significantly each year. Memory is fast, and allows Redis to have very predictable performance. Datasets composed of 10k or 40 millions keys will perform similarly. Complex data types like Redis Sorted Sets are easy to implement and manipulate in memory with good performance, making Redis very simple. Redis will continue to explore alternative options (where data can be optionally stored on disk, say) but the main goal of the project remains the development of an in-memory database. 3 - Fundamental data structures for a fundamental API. The Redis API is a direct consequence of fundamental data structures. APIs can often be arbitrary but not an API that resembles the nature of fundamental data structures. If we ever meet intelligent life forms from another part of the universe, they'll likely know, understand and recognize the same basic data structures we have in our computer science books. Redis will avoid intermediate layers in API, so that the complexity is obvious and more complex operations can be performed as the sum of the basic operations. 4 - Code is like a poem; it's not just something we write to reach some practical result. Sometimes people that are far from the Redis philosophy suggest using other code written by other authors (frequently in other languages) in order to implement something Redis currently lacks. But to us this is like if Shakespeare decided to end Enrico IV using the Paradiso from the Divina Commedia. Is using any external code a bad idea? Not at all. Like in "One Thousand and One Nights" smaller self contained stories are embedded in a bigger story, we'll be happy to use beautiful self contained libraries when needed. At the same time, when writing the Redis story we're trying to write smaller stories that will fit in to other code. 5 - We're against complexity. We believe designing systems is a fight against complexity. We'll accept to fight the complexity when it's worthwhile but we'll try hard to recognize when a small feature is not worth 1000s of lines of code. Most of the time the best way to fight complexity is by not creating it at all. 6 - Two levels of API. The Redis API has two levels: 1) a subset of the API fits naturally into a distributed version of Redis and 2) a more complex API that supports multi-key operations. Both are useful if used judiciously but there's no way to make the more complex multi-keys API distributed in an opaque way without violating our other principles. We don't want to provide the illusion of something that will work magically when actually it can't in all cases. Instead we'll provide commands to quickly migrate keys from one instance to another to perform multi-key operations and expose the tradeoffs to the user. 7 - We optimize for joy. We believe writing code is a lot of hard work, and the only way it can be worth is by enjoying it. When there is no longer joy in writing code, the best thing to do is stop. To prevent this, we'll avoid taking paths that will make Redis less of a joy to develop. redis-2.6.16/Makefile000066400000000000000000000002271220734223100143510ustar00rootroot00000000000000# Top level makefile, the real shit is at src/Makefile default: all .DEFAULT: cd src && $(MAKE) $@ install: cd src && $(MAKE) $@ .PHONY: install redis-2.6.16/README000066400000000000000000000104611220734223100135720ustar00rootroot00000000000000Where to find complete Redis documentation? ------------------------------------------- This README is just a fast "quick start" document. You can find more detailed documentation at http://redis.io Building Redis -------------- Redis can be compiled and used on Linux, OSX, OpenBSD, NetBSD, FreeBSD. We support big endian and little endian architectures. It may compile on Solaris derived systems (for instance SmartOS) but our support for this platform is "best effort" and Redis is not guaranteed to work as well as in Linux, OSX, and *BSD there. It is as simple as: % make You can run a 32 bit Redis binary using: % make 32bit After building Redis is a good idea to test it, using: % make test Fixing problems building 32 bit binaries --------- If after building Redis with a 32 bit target you need to rebuild it with a 64 bit target, or the other way around, you need to perform a "make distclean" in the root directory of the Redis distribution. In case of build errors when trying to build a 32 bit binary of Redis, try the following steps: * Install the packages libc6-dev-i386 (also try g++-multilib). * Try using the following command line instead of "make 32bit": make CFLAGS="-m32 -march=native" LDFLAGS="-m32" Allocator --------- Selecting a non-default memory allocator when building Redis is done by setting the `MALLOC` environment variable. Redis is compiled and linked against libc malloc by default, with the exception of jemalloc being the default on Linux systems. This default was picked because jemalloc has proven to have fewer fragmentation problems than libc malloc. To force compiling against libc malloc, use: % make MALLOC=libc To compile against jemalloc on Mac OS X systems, use: % make MALLOC=jemalloc Verbose build ------------- Redis will build with a user friendly colorized output by default. If you want to see a more verbose output use the following: % make V=1 Running Redis ------------- To run Redis with the default configuration just type: % cd src % ./redis-server If you want to provide your redis.conf, you have to run it using an additional parameter (the path of the configuration file): % cd src % ./redis-server /path/to/redis.conf It is possible to alter the Redis configuration passing parameters directly as options using the command line. Examples: % ./redis-server --port 9999 --slaveof 127.0.0.1 6379 % ./redis-server /etc/redis/6379.conf --loglevel debug All the options in redis.conf are also supported as options using the command line, with exactly the same name. Playing with Redis ------------------ You can use redis-cli to play with Redis. Start a redis-server instance, then in another terminal try the following: % cd src % ./redis-cli redis> ping PONG redis> set foo bar OK redis> get foo "bar" redis> incr mycounter (integer) 1 redis> incr mycounter (integer) 2 redis> You can find the list of all the available commands here: http://redis.io/commands Installing Redis ----------------- In order to install Redis binaries into /usr/local/bin just use: % make install You can use "make PREFIX=/some/other/directory install" if you wish to use a different destination. Make install will just install binaries in your system, but will not configure init scripts and configuration files in the appropriate place. This is not needed if you want just to play a bit with Redis, but if you are installing it the proper way for a production system, we have a script doing this for Ubuntu and Debian systems: % cd utils % ./install_server The script will ask you a few questions and will setup everything you need to run Redis properly as a background daemon that will start again on system reboots. You'll be able to stop and start Redis using the script named /etc/init.d/redis_, for instance /etc/init.d/redis_6379. Code contributions --- Note: by contributing code to the Redis project in any form, including sending a pull request via Github, a code fragment or patch via private email or public discussion groups, you agree to release your code under the terms of the BSD license that you can find in the COPYING file included in the Redis source distribution. Please see the CONTRIBUTING file in this source distribution for more information. Enjoy! redis-2.6.16/deps/000077500000000000000000000000001220734223100136435ustar00rootroot00000000000000redis-2.6.16/deps/Makefile000066400000000000000000000042201220734223100153010ustar00rootroot00000000000000# Redis dependency Makefile uname_S:= $(shell sh -c 'uname -s 2>/dev/null || echo not') CCCOLOR="\033[34m" LINKCOLOR="\033[34;1m" SRCCOLOR="\033[33m" BINCOLOR="\033[37;1m" MAKECOLOR="\033[32;1m" ENDCOLOR="\033[0m" default: @echo "Explicit target required" .PHONY: default # Prerequisites target .make-prerequisites: @touch $@ # Clean everything when CFLAGS is different ifneq ($(shell sh -c '[ -f .make-cflags ] && cat .make-cflags || echo none'), $(CFLAGS)) .make-cflags: distclean -(echo "$(CFLAGS)" > .make-cflags) .make-prerequisites: .make-cflags endif # Clean everything when LDFLAGS is different ifneq ($(shell sh -c '[ -f .make-ldflags ] && cat .make-ldflags || echo none'), $(LDFLAGS)) .make-ldflags: distclean -(echo "$(LDFLAGS)" > .make-ldflags) .make-prerequisites: .make-ldflags endif distclean: -(cd hiredis && $(MAKE) clean) > /dev/null || true -(cd linenoise && $(MAKE) clean) > /dev/null || true -(cd lua && $(MAKE) clean) > /dev/null || true -(cd jemalloc && [ -f Makefile ] && $(MAKE) distclean) > /dev/null || true -(rm -f .make-*) .PHONY: distclean hiredis: .make-prerequisites @printf '%b %b\n' $(MAKECOLOR)MAKE$(ENDCOLOR) $(BINCOLOR)$@$(ENDCOLOR) cd hiredis && $(MAKE) static .PHONY: hiredis linenoise: .make-prerequisites @printf '%b %b\n' $(MAKECOLOR)MAKE$(ENDCOLOR) $(BINCOLOR)$@$(ENDCOLOR) cd linenoise && $(MAKE) .PHONY: linenoise ifeq ($(uname_S),SunOS) # Make isinf() available LUA_CFLAGS= -D__C99FEATURES__=1 endif LUA_CFLAGS+= -O2 -Wall -DLUA_ANSI $(CFLAGS) LUA_LDFLAGS+= $(LDFLAGS) lua: .make-prerequisites @printf '%b %b\n' $(MAKECOLOR)MAKE$(ENDCOLOR) $(BINCOLOR)$@$(ENDCOLOR) cd lua/src && $(MAKE) all CFLAGS="$(LUA_CFLAGS)" MYLDFLAGS="$(LUA_LDFLAGS)" .PHONY: lua JEMALLOC_CFLAGS= -std=gnu99 -Wall -pipe -g3 -O3 -funroll-loops $(CFLAGS) JEMALLOC_LDFLAGS= $(LDFLAGS) jemalloc: .make-prerequisites @printf '%b %b\n' $(MAKECOLOR)MAKE$(ENDCOLOR) $(BINCOLOR)$@$(ENDCOLOR) cd jemalloc && ./configure --with-jemalloc-prefix=je_ --enable-cc-silence CFLAGS="$(JEMALLOC_CFLAGS)" LDFLAGS="$(JEMALLOC_LDFLAGS)" cd jemalloc && $(MAKE) CFLAGS="$(JEMALLOC_CFLAGS)" LDFLAGS="$(JEMALLOC_LDFLAGS)" lib/libjemalloc.a .PHONY: jemalloc redis-2.6.16/deps/hiredis/000077500000000000000000000000001220734223100152725ustar00rootroot00000000000000redis-2.6.16/deps/hiredis/.gitignore000066400000000000000000000000711220734223100172600ustar00rootroot00000000000000/hiredis-test /hiredis-example* /*.o /*.so /*.dylib /*.a redis-2.6.16/deps/hiredis/CHANGELOG.md000066400000000000000000000010071220734223100171010ustar00rootroot00000000000000### 0.10.1 * Makefile overhaul. Important to check out if you override one or more variables using environment variables or via arguments to the "make" tool. * Issue #45: Fix potential memory leak for a multi bulk reply with 0 elements being created by the default reply object functions. * Issue #43: Don't crash in an asynchronous context when Redis returns an error reply after the connection has been made (this happens when the maximum number of connections is reached). ### 0.10.0 * See commit log. redis-2.6.16/deps/hiredis/COPYING000066400000000000000000000030641220734223100163300ustar00rootroot00000000000000Copyright (c) 2009-2011, Salvatore Sanfilippo Copyright (c) 2010-2011, Pieter Noordhuis All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Redis nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. redis-2.6.16/deps/hiredis/Makefile000066400000000000000000000106151220734223100167350ustar00rootroot00000000000000# Hiredis Makefile # Copyright (C) 2010-2011 Salvatore Sanfilippo # Copyright (C) 2010-2011 Pieter Noordhuis # This file is released under the BSD license, see the COPYING file OBJ=net.o hiredis.o sds.o async.o BINS=hiredis-example hiredis-test LIBNAME=libhiredis HIREDIS_MAJOR=0 HIREDIS_MINOR=10 # Fallback to gcc when $CC is not in $PATH. CC:=$(shell sh -c 'type $(CC) >/dev/null 2>/dev/null && echo $(CC) || echo gcc') OPTIMIZATION?=-O3 WARNINGS=-Wall -W -Wstrict-prototypes -Wwrite-strings DEBUG?= -g -ggdb REAL_CFLAGS=$(OPTIMIZATION) -fPIC $(CFLAGS) $(WARNINGS) $(DEBUG) $(ARCH) REAL_LDFLAGS=$(LDFLAGS) $(ARCH) DYLIBSUFFIX=so STLIBSUFFIX=a DYLIB_MINOR_NAME=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR).$(HIREDIS_MINOR) DYLIB_MAJOR_NAME=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR) DYLIBNAME=$(LIBNAME).$(DYLIBSUFFIX) DYLIB_MAKE_CMD=$(CC) -shared -Wl,-soname,$(DYLIB_MINOR_NAME) -o $(DYLIBNAME) $(LDFLAGS) STLIBNAME=$(LIBNAME).$(STLIBSUFFIX) STLIB_MAKE_CMD=ar rcs $(STLIBNAME) # Platform-specific overrides uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not') ifeq ($(uname_S),SunOS) REAL_LDFLAGS+= -ldl -lnsl -lsocket DYLIB_MAKE_CMD=$(CC) -G -o $(DYLIBNAME) -h $(DYLIB_MINOR_NAME) $(LDFLAGS) INSTALL= cp -r endif ifeq ($(uname_S),Darwin) DYLIBSUFFIX=dylib DYLIB_MINOR_NAME=$(LIBNAME).$(HIREDIS_MAJOR).$(HIREDIS_MINOR).$(DYLIBSUFFIX) DYLIB_MAJOR_NAME=$(LIBNAME).$(HIREDIS_MAJOR).$(DYLIBSUFFIX) DYLIB_MAKE_CMD=$(CC) -shared -Wl,-install_name,$(DYLIB_MINOR_NAME) -o $(DYLIBNAME) $(LDFLAGS) endif all: $(DYLIBNAME) $(BINS) # Deps (use make dep to generate this) net.o: net.c fmacros.h net.h hiredis.h async.o: async.c async.h hiredis.h sds.h dict.c dict.h example.o: example.c hiredis.h hiredis.o: hiredis.c fmacros.h hiredis.h net.h sds.h sds.o: sds.c sds.h test.o: test.c hiredis.h $(DYLIBNAME): $(OBJ) $(DYLIB_MAKE_CMD) $(OBJ) $(STLIBNAME): $(OBJ) $(STLIB_MAKE_CMD) $(OBJ) dynamic: $(DYLIBNAME) static: $(STLIBNAME) # Binaries: hiredis-example-libevent: example-libevent.c adapters/libevent.h $(STLIBNAME) $(CC) -o $@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -levent example-libevent.c $(STLIBNAME) hiredis-example-libev: example-libev.c adapters/libev.h $(STLIBNAME) $(CC) -o $@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -lev example-libev.c $(STLIBNAME) ifndef AE_DIR hiredis-example-ae: @echo "Please specify AE_DIR (e.g. /src)" @false else hiredis-example-ae: example-ae.c adapters/ae.h $(STLIBNAME) $(CC) -o $@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -I$(AE_DIR) $(AE_DIR)/ae.o $(AE_DIR)/zmalloc.o example-ae.c $(STLIBNAME) endif hiredis-%: %.o $(STLIBNAME) $(CC) -o $@ $(REAL_LDFLAGS) $< $(STLIBNAME) test: hiredis-test ./hiredis-test check: hiredis-test echo \ "daemonize yes\n" \ "pidfile /tmp/hiredis-test-redis.pid\n" \ "port 56379\n" \ "bind 127.0.0.1\n" \ "unixsocket /tmp/hiredis-test-redis.sock" \ | redis-server - ./hiredis-test -h 127.0.0.1 -p 56379 -s /tmp/hiredis-test-redis.sock || \ ( kill `cat /tmp/hiredis-test-redis.pid` && false ) kill `cat /tmp/hiredis-test-redis.pid` .c.o: $(CC) -std=c99 -pedantic -c $(REAL_CFLAGS) $< clean: rm -rf $(DYLIBNAME) $(STLIBNAME) $(BINS) hiredis-example* *.o *.gcda *.gcno *.gcov dep: $(CC) -MM *.c # Installation related variables and target PREFIX?=/usr/local INCLUDE_PATH?=include/hiredis LIBRARY_PATH?=lib INSTALL_INCLUDE_PATH= $(PREFIX)/$(INCLUDE_PATH) INSTALL_LIBRARY_PATH= $(PREFIX)/$(LIBRARY_PATH) ifeq ($(uname_S),SunOS) INSTALL?= cp -r endif INSTALL?= cp -a install: $(DYLIBNAME) $(STLIBNAME) mkdir -p $(INSTALL_INCLUDE_PATH) $(INSTALL_LIBRARY_PATH) $(INSTALL) hiredis.h async.h adapters $(INSTALL_INCLUDE_PATH) $(INSTALL) $(DYLIBNAME) $(INSTALL_LIBRARY_PATH)/$(DYLIB_MINOR_NAME) cd $(INSTALL_LIBRARY_PATH) && ln -sf $(DYLIB_MINOR_NAME) $(DYLIB_MAJOR_NAME) cd $(INSTALL_LIBRARY_PATH) && ln -sf $(DYLIB_MAJOR_NAME) $(DYLIBNAME) $(INSTALL) $(STLIBNAME) $(INSTALL_LIBRARY_PATH) 32bit: @echo "" @echo "WARNING: if this fails under Linux you probably need to install libc6-dev-i386" @echo "" $(MAKE) CFLAGS="-m32" LDFLAGS="-m32" gprof: $(MAKE) CFLAGS="-pg" LDFLAGS="-pg" gcov: $(MAKE) CFLAGS="-fprofile-arcs -ftest-coverage" LDFLAGS="-fprofile-arcs" coverage: gcov make check mkdir -p tmp/lcov lcov -d . -c -o tmp/lcov/hiredis.info genhtml --legend -o tmp/lcov/report tmp/lcov/hiredis.info noopt: $(MAKE) OPTIMIZATION="" .PHONY: all test check clean dep install 32bit gprof gcov noopt redis-2.6.16/deps/hiredis/README.md000066400000000000000000000414161220734223100165570ustar00rootroot00000000000000# HIREDIS Hiredis is a minimalistic C client library for the [Redis](http://redis.io/) database. It is minimalistic because it just adds minimal support for the protocol, but at the same time it uses an high level printf-alike API in order to make it much higher level than otherwise suggested by its minimal code base and the lack of explicit bindings for every Redis command. Apart from supporting sending commands and receiving replies, it comes with a reply parser that is decoupled from the I/O layer. It is a stream parser designed for easy reusability, which can for instance be used in higher level language bindings for efficient reply parsing. Hiredis only supports the binary-safe Redis protocol, so you can use it with any Redis version >= 1.2.0. The library comes with multiple APIs. There is the *synchronous API*, the *asynchronous API* and the *reply parsing API*. ## UPGRADING Version 0.9.0 is a major overhaul of hiredis in every aspect. However, upgrading existing code using hiredis should not be a big pain. The key thing to keep in mind when upgrading is that hiredis >= 0.9.0 uses a `redisContext*` to keep state, in contrast to the stateless 0.0.1 that only has a file descriptor to work with. ## Synchronous API To consume the synchronous API, there are only a few function calls that need to be introduced: redisContext *redisConnect(const char *ip, int port); void *redisCommand(redisContext *c, const char *format, ...); void freeReplyObject(void *reply); ### Connecting The function `redisConnect` is used to create a so-called `redisContext`. The context is where Hiredis holds state for a connection. The `redisContext` struct has an integer `err` field that is non-zero when an the connection is in an error state. The field `errstr` will contain a string with a description of the error. More information on errors can be found in the **Errors** section. After trying to connect to Redis using `redisConnect` you should check the `err` field to see if establishing the connection was successful: redisContext *c = redisConnect("127.0.0.1", 6379); if (c->err) { printf("Error: %s\n", c->errstr); // handle error } ### Sending commands There are several ways to issue commands to Redis. The first that will be introduced is `redisCommand`. This function takes a format similar to printf. In the simplest form, it is used like this: reply = redisCommand(context, "SET foo bar"); The specifier `%s` interpolates a string in the command, and uses `strlen` to determine the length of the string: reply = redisCommand(context, "SET foo %s", value); When you need to pass binary safe strings in a command, the `%b` specifier can be used. Together with a pointer to the string, it requires a `size_t` length argument of the string: reply = redisCommand(context, "SET foo %b", value, valuelen); Internally, Hiredis splits the command in different arguments and will convert it to the protocol used to communicate with Redis. One or more spaces separates arguments, so you can use the specifiers anywhere in an argument: reply = redisCommand(context, "SET key:%s %s", myid, value); ### Using replies The return value of `redisCommand` holds a reply when the command was successfully executed. When an error occurs, the return value is `NULL` and the `err` field in the context will be set (see section on **Errors**). Once an error is returned the context cannot be reused and you should set up a new connection. The standard replies that `redisCommand` are of the type `redisReply`. The `type` field in the `redisReply` should be used to test what kind of reply was received: * **`REDIS_REPLY_STATUS`**: * The command replied with a status reply. The status string can be accessed using `reply->str`. The length of this string can be accessed using `reply->len`. * **`REDIS_REPLY_ERROR`**: * The command replied with an error. The error string can be accessed identical to `REDIS_REPLY_STATUS`. * **`REDIS_REPLY_INTEGER`**: * The command replied with an integer. The integer value can be accessed using the `reply->integer` field of type `long long`. * **`REDIS_REPLY_NIL`**: * The command replied with a **nil** object. There is no data to access. * **`REDIS_REPLY_STRING`**: * A bulk (string) reply. The value of the reply can be accessed using `reply->str`. The length of this string can be accessed using `reply->len`. * **`REDIS_REPLY_ARRAY`**: * A multi bulk reply. The number of elements in the multi bulk reply is stored in `reply->elements`. Every element in the multi bulk reply is a `redisReply` object as well and can be accessed via `reply->element[..index..]`. Redis may reply with nested arrays but this is fully supported. Replies should be freed using the `freeReplyObject()` function. Note that this function will take care of freeing sub-replies objects contained in arrays and nested arrays, so there is no need for the user to free the sub replies (it is actually harmful and will corrupt the memory). **Important:** the current version of hiredis (0.10.0) free's replies when the asynchronous API is used. This means you should not call `freeReplyObject` when you use this API. The reply is cleaned up by hiredis _after_ the callback returns. This behavior will probably change in future releases, so make sure to keep an eye on the changelog when upgrading (see issue #39). ### Cleaning up To disconnect and free the context the following function can be used: void redisFree(redisContext *c); This function immediately closes the socket and then free's the allocations done in creating the context. ### Sending commands (cont'd) Together with `redisCommand`, the function `redisCommandArgv` can be used to issue commands. It has the following prototype: void *redisCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen); It takes the number of arguments `argc`, an array of strings `argv` and the lengths of the arguments `argvlen`. For convenience, `argvlen` may be set to `NULL` and the function will use `strlen(3)` on every argument to determine its length. Obviously, when any of the arguments need to be binary safe, the entire array of lengths `argvlen` should be provided. The return value has the same semantic as `redisCommand`. ### Pipelining To explain how Hiredis supports pipelining in a blocking connection, there needs to be understanding of the internal execution flow. When any of the functions in the `redisCommand` family is called, Hiredis first formats the command according to the Redis protocol. The formatted command is then put in the output buffer of the context. This output buffer is dynamic, so it can hold any number of commands. After the command is put in the output buffer, `redisGetReply` is called. This function has the following two execution paths: 1. The input buffer is non-empty: * Try to parse a single reply from the input buffer and return it * If no reply could be parsed, continue at *2* 2. The input buffer is empty: * Write the **entire** output buffer to the socket * Read from the socket until a single reply could be parsed The function `redisGetReply` is exported as part of the Hiredis API and can be used when a reply is expected on the socket. To pipeline commands, the only things that needs to be done is filling up the output buffer. For this cause, two commands can be used that are identical to the `redisCommand` family, apart from not returning a reply: void redisAppendCommand(redisContext *c, const char *format, ...); void redisAppendCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen); After calling either function one or more times, `redisGetReply` can be used to receive the subsequent replies. The return value for this function is either `REDIS_OK` or `REDIS_ERR`, where the latter means an error occurred while reading a reply. Just as with the other commands, the `err` field in the context can be used to find out what the cause of this error is. The following examples shows a simple pipeline (resulting in only a single call to `write(2)` and a single call to `read(2)`): redisReply *reply; redisAppendCommand(context,"SET foo bar"); redisAppendCommand(context,"GET foo"); redisGetReply(context,&reply); // reply for SET freeReplyObject(reply); redisGetReply(context,&reply); // reply for GET freeReplyObject(reply); This API can also be used to implement a blocking subscriber: reply = redisCommand(context,"SUBSCRIBE foo"); freeReplyObject(reply); while(redisGetReply(context,&reply) == REDIS_OK) { // consume message freeReplyObject(reply); } ### Errors When a function call is not successful, depending on the function either `NULL` or `REDIS_ERR` is returned. The `err` field inside the context will be non-zero and set to one of the following constants: * **`REDIS_ERR_IO`**: There was an I/O error while creating the connection, trying to write to the socket or read from the socket. If you included `errno.h` in your application, you can use the global `errno` variable to find out what is wrong. * **`REDIS_ERR_EOF`**: The server closed the connection which resulted in an empty read. * **`REDIS_ERR_PROTOCOL`**: There was an error while parsing the protocol. * **`REDIS_ERR_OTHER`**: Any other error. Currently, it is only used when a specified hostname to connect to cannot be resolved. In every case, the `errstr` field in the context will be set to hold a string representation of the error. ## Asynchronous API Hiredis comes with an asynchronous API that works easily with any event library. Examples are bundled that show using Hiredis with [libev](http://software.schmorp.de/pkg/libev.html) and [libevent](http://monkey.org/~provos/libevent/). ### Connecting The function `redisAsyncConnect` can be used to establish a non-blocking connection to Redis. It returns a pointer to the newly created `redisAsyncContext` struct. The `err` field should be checked after creation to see if there were errors creating the connection. Because the connection that will be created is non-blocking, the kernel is not able to instantly return if the specified host and port is able to accept a connection. redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379); if (c->err) { printf("Error: %s\n", c->errstr); // handle error } The asynchronous context can hold a disconnect callback function that is called when the connection is disconnected (either because of an error or per user request). This function should have the following prototype: void(const redisAsyncContext *c, int status); On a disconnect, the `status` argument is set to `REDIS_OK` when disconnection was initiated by the user, or `REDIS_ERR` when the disconnection was caused by an error. When it is `REDIS_ERR`, the `err` field in the context can be accessed to find out the cause of the error. The context object is always free'd after the disconnect callback fired. When a reconnect is needed, the disconnect callback is a good point to do so. Setting the disconnect callback can only be done once per context. For subsequent calls it will return `REDIS_ERR`. The function to set the disconnect callback has the following prototype: int redisAsyncSetDisconnectCallback(redisAsyncContext *ac, redisDisconnectCallback *fn); ### Sending commands and their callbacks In an asynchronous context, commands are automatically pipelined due to the nature of an event loop. Therefore, unlike the synchronous API, there is only a single way to send commands. Because commands are sent to Redis asynchronously, issuing a command requires a callback function that is called when the reply is received. Reply callbacks should have the following prototype: void(redisAsyncContext *c, void *reply, void *privdata); The `privdata` argument can be used to curry arbitrary data to the callback from the point where the command is initially queued for execution. The functions that can be used to issue commands in an asynchronous context are: int redisAsyncCommand( redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, ...); int redisAsyncCommandArgv( redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, int argc, const char **argv, const size_t *argvlen); Both functions work like their blocking counterparts. The return value is `REDIS_OK` when the command was successfully added to the output buffer and `REDIS_ERR` otherwise. Example: when the connection is being disconnected per user-request, no new commands may be added to the output buffer and `REDIS_ERR` is returned on calls to the `redisAsyncCommand` family. If the reply for a command with a `NULL` callback is read, it is immediately free'd. When the callback for a command is non-`NULL`, the memory is free'd immediately following the callback: the reply is only valid for the duration of the callback. All pending callbacks are called with a `NULL` reply when the context encountered an error. ### Disconnecting An asynchronous connection can be terminated using: void redisAsyncDisconnect(redisAsyncContext *ac); When this function is called, the connection is **not** immediately terminated. Instead, new commands are no longer accepted and the connection is only terminated when all pending commands have been written to the socket, their respective replies have been read and their respective callbacks have been executed. After this, the disconnection callback is executed with the `REDIS_OK` status and the context object is free'd. ### Hooking it up to event library *X* There are a few hooks that need to be set on the context object after it is created. See the `adapters/` directory for bindings to *libev* and *libevent*. ## Reply parsing API Hiredis comes with a reply parsing API that makes it easy for writing higher level language bindings. The reply parsing API consists of the following functions: redisReader *redisReaderCreate(void); void redisReaderFree(redisReader *reader); int redisReaderFeed(redisReader *reader, const char *buf, size_t len); int redisReaderGetReply(redisReader *reader, void **reply); The same set of functions are used internally by hiredis when creating a normal Redis context, the above API just exposes it to the user for a direct usage. ### Usage The function `redisReaderCreate` creates a `redisReader` structure that holds a buffer with unparsed data and state for the protocol parser. Incoming data -- most likely from a socket -- can be placed in the internal buffer of the `redisReader` using `redisReaderFeed`. This function will make a copy of the buffer pointed to by `buf` for `len` bytes. This data is parsed when `redisReaderGetReply` is called. This function returns an integer status and a reply object (as described above) via `void **reply`. The returned status can be either `REDIS_OK` or `REDIS_ERR`, where the latter means something went wrong (either a protocol error, or an out of memory error). ### Customizing replies The function `redisReaderGetReply` creates `redisReply` and makes the function argument `reply` point to the created `redisReply` variable. For instance, if the response of type `REDIS_REPLY_STATUS` then the `str` field of `redisReply` will hold the status as a vanilla C string. However, the functions that are responsible for creating instances of the `redisReply` can be customized by setting the `fn` field on the `redisReader` struct. This should be done immediately after creating the `redisReader`. For example, [hiredis-rb](https://github.com/pietern/hiredis-rb/blob/master/ext/hiredis_ext/reader.c) uses customized reply object functions to create Ruby objects. ### Reader max buffer Both when using the Reader API directly or when using it indirectly via a normal Redis context, the redisReader structure uses a buffer in order to accumulate data from the server. Usually this buffer is destroyed when it is empty and is larger than 16 kb in order to avoid wasting memory in unused buffers However when working with very big payloads destroying the buffer may slow down performances considerably, so it is possible to modify the max size of an idle buffer changing the value of the `maxbuf` field of the reader structure to the desired value. The special value of 0 means that there is no maximum value for an idle buffer, so the buffer will never get freed. For instance if you have a normal Redis context you can set the maximum idle buffer to zero (unlimited) just with: context->reader->maxbuf = 0; This should be done only in order to maximize performances when working with large payloads. The context should be set back to `REDIS_READER_MAX_BUF` again as soon as possible in order to prevent allocation of useless memory. ## AUTHORS Hiredis was written by Salvatore Sanfilippo (antirez at gmail) and Pieter Noordhuis (pcnoordhuis at gmail) and is released under the BSD license. redis-2.6.16/deps/hiredis/adapters/000077500000000000000000000000001220734223100170755ustar00rootroot00000000000000redis-2.6.16/deps/hiredis/adapters/ae.h000066400000000000000000000101731220734223100176350ustar00rootroot00000000000000/* * Copyright (c) 2010-2011, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __HIREDIS_AE_H__ #define __HIREDIS_AE_H__ #include #include #include "../hiredis.h" #include "../async.h" typedef struct redisAeEvents { redisAsyncContext *context; aeEventLoop *loop; int fd; int reading, writing; } redisAeEvents; static void redisAeReadEvent(aeEventLoop *el, int fd, void *privdata, int mask) { ((void)el); ((void)fd); ((void)mask); redisAeEvents *e = (redisAeEvents*)privdata; redisAsyncHandleRead(e->context); } static void redisAeWriteEvent(aeEventLoop *el, int fd, void *privdata, int mask) { ((void)el); ((void)fd); ((void)mask); redisAeEvents *e = (redisAeEvents*)privdata; redisAsyncHandleWrite(e->context); } static void redisAeAddRead(void *privdata) { redisAeEvents *e = (redisAeEvents*)privdata; aeEventLoop *loop = e->loop; if (!e->reading) { e->reading = 1; aeCreateFileEvent(loop,e->fd,AE_READABLE,redisAeReadEvent,e); } } static void redisAeDelRead(void *privdata) { redisAeEvents *e = (redisAeEvents*)privdata; aeEventLoop *loop = e->loop; if (e->reading) { e->reading = 0; aeDeleteFileEvent(loop,e->fd,AE_READABLE); } } static void redisAeAddWrite(void *privdata) { redisAeEvents *e = (redisAeEvents*)privdata; aeEventLoop *loop = e->loop; if (!e->writing) { e->writing = 1; aeCreateFileEvent(loop,e->fd,AE_WRITABLE,redisAeWriteEvent,e); } } static void redisAeDelWrite(void *privdata) { redisAeEvents *e = (redisAeEvents*)privdata; aeEventLoop *loop = e->loop; if (e->writing) { e->writing = 0; aeDeleteFileEvent(loop,e->fd,AE_WRITABLE); } } static void redisAeCleanup(void *privdata) { redisAeEvents *e = (redisAeEvents*)privdata; redisAeDelRead(privdata); redisAeDelWrite(privdata); free(e); } static int redisAeAttach(aeEventLoop *loop, redisAsyncContext *ac) { redisContext *c = &(ac->c); redisAeEvents *e; /* Nothing should be attached when something is already attached */ if (ac->ev.data != NULL) return REDIS_ERR; /* Create container for context and r/w events */ e = (redisAeEvents*)malloc(sizeof(*e)); e->context = ac; e->loop = loop; e->fd = c->fd; e->reading = e->writing = 0; /* Register functions to start/stop listening for events */ ac->ev.addRead = redisAeAddRead; ac->ev.delRead = redisAeDelRead; ac->ev.addWrite = redisAeAddWrite; ac->ev.delWrite = redisAeDelWrite; ac->ev.cleanup = redisAeCleanup; ac->ev.data = e; return REDIS_OK; } #endif redis-2.6.16/deps/hiredis/adapters/libev.h000066400000000000000000000107531220734223100203550ustar00rootroot00000000000000/* * Copyright (c) 2010-2011, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __HIREDIS_LIBEV_H__ #define __HIREDIS_LIBEV_H__ #include #include #include #include "../hiredis.h" #include "../async.h" typedef struct redisLibevEvents { redisAsyncContext *context; struct ev_loop *loop; int reading, writing; ev_io rev, wev; } redisLibevEvents; static void redisLibevReadEvent(EV_P_ ev_io *watcher, int revents) { #if EV_MULTIPLICITY ((void)loop); #endif ((void)revents); redisLibevEvents *e = (redisLibevEvents*)watcher->data; redisAsyncHandleRead(e->context); } static void redisLibevWriteEvent(EV_P_ ev_io *watcher, int revents) { #if EV_MULTIPLICITY ((void)loop); #endif ((void)revents); redisLibevEvents *e = (redisLibevEvents*)watcher->data; redisAsyncHandleWrite(e->context); } static void redisLibevAddRead(void *privdata) { redisLibevEvents *e = (redisLibevEvents*)privdata; struct ev_loop *loop = e->loop; ((void)loop); if (!e->reading) { e->reading = 1; ev_io_start(EV_A_ &e->rev); } } static void redisLibevDelRead(void *privdata) { redisLibevEvents *e = (redisLibevEvents*)privdata; struct ev_loop *loop = e->loop; ((void)loop); if (e->reading) { e->reading = 0; ev_io_stop(EV_A_ &e->rev); } } static void redisLibevAddWrite(void *privdata) { redisLibevEvents *e = (redisLibevEvents*)privdata; struct ev_loop *loop = e->loop; ((void)loop); if (!e->writing) { e->writing = 1; ev_io_start(EV_A_ &e->wev); } } static void redisLibevDelWrite(void *privdata) { redisLibevEvents *e = (redisLibevEvents*)privdata; struct ev_loop *loop = e->loop; ((void)loop); if (e->writing) { e->writing = 0; ev_io_stop(EV_A_ &e->wev); } } static void redisLibevCleanup(void *privdata) { redisLibevEvents *e = (redisLibevEvents*)privdata; redisLibevDelRead(privdata); redisLibevDelWrite(privdata); free(e); } static int redisLibevAttach(EV_P_ redisAsyncContext *ac) { redisContext *c = &(ac->c); redisLibevEvents *e; /* Nothing should be attached when something is already attached */ if (ac->ev.data != NULL) return REDIS_ERR; /* Create container for context and r/w events */ e = (redisLibevEvents*)malloc(sizeof(*e)); e->context = ac; #if EV_MULTIPLICITY e->loop = loop; #else e->loop = NULL; #endif e->reading = e->writing = 0; e->rev.data = e; e->wev.data = e; /* Register functions to start/stop listening for events */ ac->ev.addRead = redisLibevAddRead; ac->ev.delRead = redisLibevDelRead; ac->ev.addWrite = redisLibevAddWrite; ac->ev.delWrite = redisLibevDelWrite; ac->ev.cleanup = redisLibevCleanup; ac->ev.data = e; /* Initialize read/write events */ ev_io_init(&e->rev,redisLibevReadEvent,c->fd,EV_READ); ev_io_init(&e->wev,redisLibevWriteEvent,c->fd,EV_WRITE); return REDIS_OK; } #endif redis-2.6.16/deps/hiredis/adapters/libevent.h000066400000000000000000000076141220734223100210660ustar00rootroot00000000000000/* * Copyright (c) 2010-2011, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __HIREDIS_LIBEVENT_H__ #define __HIREDIS_LIBEVENT_H__ #include #include "../hiredis.h" #include "../async.h" typedef struct redisLibeventEvents { redisAsyncContext *context; struct event rev, wev; } redisLibeventEvents; static void redisLibeventReadEvent(int fd, short event, void *arg) { ((void)fd); ((void)event); redisLibeventEvents *e = (redisLibeventEvents*)arg; redisAsyncHandleRead(e->context); } static void redisLibeventWriteEvent(int fd, short event, void *arg) { ((void)fd); ((void)event); redisLibeventEvents *e = (redisLibeventEvents*)arg; redisAsyncHandleWrite(e->context); } static void redisLibeventAddRead(void *privdata) { redisLibeventEvents *e = (redisLibeventEvents*)privdata; event_add(&e->rev,NULL); } static void redisLibeventDelRead(void *privdata) { redisLibeventEvents *e = (redisLibeventEvents*)privdata; event_del(&e->rev); } static void redisLibeventAddWrite(void *privdata) { redisLibeventEvents *e = (redisLibeventEvents*)privdata; event_add(&e->wev,NULL); } static void redisLibeventDelWrite(void *privdata) { redisLibeventEvents *e = (redisLibeventEvents*)privdata; event_del(&e->wev); } static void redisLibeventCleanup(void *privdata) { redisLibeventEvents *e = (redisLibeventEvents*)privdata; event_del(&e->rev); event_del(&e->wev); free(e); } static int redisLibeventAttach(redisAsyncContext *ac, struct event_base *base) { redisContext *c = &(ac->c); redisLibeventEvents *e; /* Nothing should be attached when something is already attached */ if (ac->ev.data != NULL) return REDIS_ERR; /* Create container for context and r/w events */ e = (redisLibeventEvents*)malloc(sizeof(*e)); e->context = ac; /* Register functions to start/stop listening for events */ ac->ev.addRead = redisLibeventAddRead; ac->ev.delRead = redisLibeventDelRead; ac->ev.addWrite = redisLibeventAddWrite; ac->ev.delWrite = redisLibeventDelWrite; ac->ev.cleanup = redisLibeventCleanup; ac->ev.data = e; /* Initialize and install read/write events */ event_set(&e->rev,c->fd,EV_READ,redisLibeventReadEvent,e); event_set(&e->wev,c->fd,EV_WRITE,redisLibeventWriteEvent,e); event_base_set(base,&e->rev); event_base_set(base,&e->wev); return REDIS_OK; } #endif redis-2.6.16/deps/hiredis/async.c000066400000000000000000000520741220734223100165630ustar00rootroot00000000000000/* * Copyright (c) 2009-2011, Salvatore Sanfilippo * Copyright (c) 2010-2011, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "fmacros.h" #include #include #include #include #include #include #include "async.h" #include "net.h" #include "dict.c" #include "sds.h" #define _EL_ADD_READ(ctx) do { \ if ((ctx)->ev.addRead) (ctx)->ev.addRead((ctx)->ev.data); \ } while(0) #define _EL_DEL_READ(ctx) do { \ if ((ctx)->ev.delRead) (ctx)->ev.delRead((ctx)->ev.data); \ } while(0) #define _EL_ADD_WRITE(ctx) do { \ if ((ctx)->ev.addWrite) (ctx)->ev.addWrite((ctx)->ev.data); \ } while(0) #define _EL_DEL_WRITE(ctx) do { \ if ((ctx)->ev.delWrite) (ctx)->ev.delWrite((ctx)->ev.data); \ } while(0) #define _EL_CLEANUP(ctx) do { \ if ((ctx)->ev.cleanup) (ctx)->ev.cleanup((ctx)->ev.data); \ } while(0); /* Forward declaration of function in hiredis.c */ void __redisAppendCommand(redisContext *c, char *cmd, size_t len); /* Functions managing dictionary of callbacks for pub/sub. */ static unsigned int callbackHash(const void *key) { return dictGenHashFunction((unsigned char*)key,sdslen((char*)key)); } static void *callbackValDup(void *privdata, const void *src) { ((void) privdata); redisCallback *dup = malloc(sizeof(*dup)); memcpy(dup,src,sizeof(*dup)); return dup; } static int callbackKeyCompare(void *privdata, const void *key1, const void *key2) { int l1, l2; ((void) privdata); l1 = sdslen((sds)key1); l2 = sdslen((sds)key2); if (l1 != l2) return 0; return memcmp(key1,key2,l1) == 0; } static void callbackKeyDestructor(void *privdata, void *key) { ((void) privdata); sdsfree((sds)key); } static void callbackValDestructor(void *privdata, void *val) { ((void) privdata); free(val); } static dictType callbackDict = { callbackHash, NULL, callbackValDup, callbackKeyCompare, callbackKeyDestructor, callbackValDestructor }; static redisAsyncContext *redisAsyncInitialize(redisContext *c) { redisAsyncContext *ac = realloc(c,sizeof(redisAsyncContext)); c = &(ac->c); /* The regular connect functions will always set the flag REDIS_CONNECTED. * For the async API, we want to wait until the first write event is * received up before setting this flag, so reset it here. */ c->flags &= ~REDIS_CONNECTED; ac->err = 0; ac->errstr = NULL; ac->data = NULL; ac->ev.data = NULL; ac->ev.addRead = NULL; ac->ev.delRead = NULL; ac->ev.addWrite = NULL; ac->ev.delWrite = NULL; ac->ev.cleanup = NULL; ac->onConnect = NULL; ac->onDisconnect = NULL; ac->replies.head = NULL; ac->replies.tail = NULL; ac->sub.invalid.head = NULL; ac->sub.invalid.tail = NULL; ac->sub.channels = dictCreate(&callbackDict,NULL); ac->sub.patterns = dictCreate(&callbackDict,NULL); return ac; } /* We want the error field to be accessible directly instead of requiring * an indirection to the redisContext struct. */ static void __redisAsyncCopyError(redisAsyncContext *ac) { redisContext *c = &(ac->c); ac->err = c->err; ac->errstr = c->errstr; } redisAsyncContext *redisAsyncConnect(const char *ip, int port) { redisContext *c = redisConnectNonBlock(ip,port); redisAsyncContext *ac = redisAsyncInitialize(c); __redisAsyncCopyError(ac); return ac; } redisAsyncContext *redisAsyncConnectUnix(const char *path) { redisContext *c = redisConnectUnixNonBlock(path); redisAsyncContext *ac = redisAsyncInitialize(c); __redisAsyncCopyError(ac); return ac; } int redisAsyncSetConnectCallback(redisAsyncContext *ac, redisConnectCallback *fn) { if (ac->onConnect == NULL) { ac->onConnect = fn; /* The common way to detect an established connection is to wait for * the first write event to be fired. This assumes the related event * library functions are already set. */ _EL_ADD_WRITE(ac); return REDIS_OK; } return REDIS_ERR; } int redisAsyncSetDisconnectCallback(redisAsyncContext *ac, redisDisconnectCallback *fn) { if (ac->onDisconnect == NULL) { ac->onDisconnect = fn; return REDIS_OK; } return REDIS_ERR; } /* Helper functions to push/shift callbacks */ static int __redisPushCallback(redisCallbackList *list, redisCallback *source) { redisCallback *cb; /* Copy callback from stack to heap */ cb = malloc(sizeof(*cb)); if (source != NULL) { memcpy(cb,source,sizeof(*cb)); cb->next = NULL; } /* Store callback in list */ if (list->head == NULL) list->head = cb; if (list->tail != NULL) list->tail->next = cb; list->tail = cb; return REDIS_OK; } static int __redisShiftCallback(redisCallbackList *list, redisCallback *target) { redisCallback *cb = list->head; if (cb != NULL) { list->head = cb->next; if (cb == list->tail) list->tail = NULL; /* Copy callback from heap to stack */ if (target != NULL) memcpy(target,cb,sizeof(*cb)); free(cb); return REDIS_OK; } return REDIS_ERR; } static void __redisRunCallback(redisAsyncContext *ac, redisCallback *cb, redisReply *reply) { redisContext *c = &(ac->c); if (cb->fn != NULL) { c->flags |= REDIS_IN_CALLBACK; cb->fn(ac,reply,cb->privdata); c->flags &= ~REDIS_IN_CALLBACK; } } /* Helper function to free the context. */ static void __redisAsyncFree(redisAsyncContext *ac) { redisContext *c = &(ac->c); redisCallback cb; dictIterator *it; dictEntry *de; /* Execute pending callbacks with NULL reply. */ while (__redisShiftCallback(&ac->replies,&cb) == REDIS_OK) __redisRunCallback(ac,&cb,NULL); /* Execute callbacks for invalid commands */ while (__redisShiftCallback(&ac->sub.invalid,&cb) == REDIS_OK) __redisRunCallback(ac,&cb,NULL); /* Run subscription callbacks callbacks with NULL reply */ it = dictGetIterator(ac->sub.channels); while ((de = dictNext(it)) != NULL) __redisRunCallback(ac,dictGetEntryVal(de),NULL); dictReleaseIterator(it); dictRelease(ac->sub.channels); it = dictGetIterator(ac->sub.patterns); while ((de = dictNext(it)) != NULL) __redisRunCallback(ac,dictGetEntryVal(de),NULL); dictReleaseIterator(it); dictRelease(ac->sub.patterns); /* Signal event lib to clean up */ _EL_CLEANUP(ac); /* Execute disconnect callback. When redisAsyncFree() initiated destroying * this context, the status will always be REDIS_OK. */ if (ac->onDisconnect && (c->flags & REDIS_CONNECTED)) { if (c->flags & REDIS_FREEING) { ac->onDisconnect(ac,REDIS_OK); } else { ac->onDisconnect(ac,(ac->err == 0) ? REDIS_OK : REDIS_ERR); } } /* Cleanup self */ redisFree(c); } /* Free the async context. When this function is called from a callback, * control needs to be returned to redisProcessCallbacks() before actual * free'ing. To do so, a flag is set on the context which is picked up by * redisProcessCallbacks(). Otherwise, the context is immediately free'd. */ void redisAsyncFree(redisAsyncContext *ac) { redisContext *c = &(ac->c); c->flags |= REDIS_FREEING; if (!(c->flags & REDIS_IN_CALLBACK)) __redisAsyncFree(ac); } /* Helper function to make the disconnect happen and clean up. */ static void __redisAsyncDisconnect(redisAsyncContext *ac) { redisContext *c = &(ac->c); /* Make sure error is accessible if there is any */ __redisAsyncCopyError(ac); if (ac->err == 0) { /* For clean disconnects, there should be no pending callbacks. */ assert(__redisShiftCallback(&ac->replies,NULL) == REDIS_ERR); } else { /* Disconnection is caused by an error, make sure that pending * callbacks cannot call new commands. */ c->flags |= REDIS_DISCONNECTING; } /* For non-clean disconnects, __redisAsyncFree() will execute pending * callbacks with a NULL-reply. */ __redisAsyncFree(ac); } /* Tries to do a clean disconnect from Redis, meaning it stops new commands * from being issued, but tries to flush the output buffer and execute * callbacks for all remaining replies. When this function is called from a * callback, there might be more replies and we can safely defer disconnecting * to redisProcessCallbacks(). Otherwise, we can only disconnect immediately * when there are no pending callbacks. */ void redisAsyncDisconnect(redisAsyncContext *ac) { redisContext *c = &(ac->c); c->flags |= REDIS_DISCONNECTING; if (!(c->flags & REDIS_IN_CALLBACK) && ac->replies.head == NULL) __redisAsyncDisconnect(ac); } static int __redisGetSubscribeCallback(redisAsyncContext *ac, redisReply *reply, redisCallback *dstcb) { redisContext *c = &(ac->c); dict *callbacks; dictEntry *de; int pvariant; char *stype; sds sname; /* Custom reply functions are not supported for pub/sub. This will fail * very hard when they are used... */ if (reply->type == REDIS_REPLY_ARRAY) { assert(reply->elements >= 2); assert(reply->element[0]->type == REDIS_REPLY_STRING); stype = reply->element[0]->str; pvariant = (tolower(stype[0]) == 'p') ? 1 : 0; if (pvariant) callbacks = ac->sub.patterns; else callbacks = ac->sub.channels; /* Locate the right callback */ assert(reply->element[1]->type == REDIS_REPLY_STRING); sname = sdsnewlen(reply->element[1]->str,reply->element[1]->len); de = dictFind(callbacks,sname); if (de != NULL) { memcpy(dstcb,dictGetEntryVal(de),sizeof(*dstcb)); /* If this is an unsubscribe message, remove it. */ if (strcasecmp(stype+pvariant,"unsubscribe") == 0) { dictDelete(callbacks,sname); /* If this was the last unsubscribe message, revert to * non-subscribe mode. */ assert(reply->element[2]->type == REDIS_REPLY_INTEGER); if (reply->element[2]->integer == 0) c->flags &= ~REDIS_SUBSCRIBED; } } sdsfree(sname); } else { /* Shift callback for invalid commands. */ __redisShiftCallback(&ac->sub.invalid,dstcb); } return REDIS_OK; } void redisProcessCallbacks(redisAsyncContext *ac) { redisContext *c = &(ac->c); redisCallback cb; void *reply = NULL; int status; while((status = redisGetReply(c,&reply)) == REDIS_OK) { if (reply == NULL) { /* When the connection is being disconnected and there are * no more replies, this is the cue to really disconnect. */ if (c->flags & REDIS_DISCONNECTING && sdslen(c->obuf) == 0) { __redisAsyncDisconnect(ac); return; } /* If monitor mode, repush callback */ if(c->flags & REDIS_MONITORING) { __redisPushCallback(&ac->replies,&cb); } /* When the connection is not being disconnected, simply stop * trying to get replies and wait for the next loop tick. */ break; } /* Even if the context is subscribed, pending regular callbacks will * get a reply before pub/sub messages arrive. */ if (__redisShiftCallback(&ac->replies,&cb) != REDIS_OK) { /* * A spontaneous reply in a not-subscribed context can be the error * reply that is sent when a new connection exceeds the maximum * number of allowed connections on the server side. * * This is seen as an error instead of a regular reply because the * server closes the connection after sending it. * * To prevent the error from being overwritten by an EOF error the * connection is closed here. See issue #43. * * Another possibility is that the server is loading its dataset. * In this case we also want to close the connection, and have the * user wait until the server is ready to take our request. */ if (((redisReply*)reply)->type == REDIS_REPLY_ERROR) { c->err = REDIS_ERR_OTHER; snprintf(c->errstr,sizeof(c->errstr),"%s",((redisReply*)reply)->str); __redisAsyncDisconnect(ac); return; } /* No more regular callbacks and no errors, the context *must* be subscribed or monitoring. */ assert((c->flags & REDIS_SUBSCRIBED || c->flags & REDIS_MONITORING)); if(c->flags & REDIS_SUBSCRIBED) __redisGetSubscribeCallback(ac,reply,&cb); } if (cb.fn != NULL) { __redisRunCallback(ac,&cb,reply); c->reader->fn->freeObject(reply); /* Proceed with free'ing when redisAsyncFree() was called. */ if (c->flags & REDIS_FREEING) { __redisAsyncFree(ac); return; } } else { /* No callback for this reply. This can either be a NULL callback, * or there were no callbacks to begin with. Either way, don't * abort with an error, but simply ignore it because the client * doesn't know what the server will spit out over the wire. */ c->reader->fn->freeObject(reply); } } /* Disconnect when there was an error reading the reply */ if (status != REDIS_OK) __redisAsyncDisconnect(ac); } /* Internal helper function to detect socket status the first time a read or * write event fires. When connecting was not succesful, the connect callback * is called with a REDIS_ERR status and the context is free'd. */ static int __redisAsyncHandleConnect(redisAsyncContext *ac) { redisContext *c = &(ac->c); if (redisCheckSocketError(c,c->fd) == REDIS_ERR) { /* Try again later when connect(2) is still in progress. */ if (errno == EINPROGRESS) return REDIS_OK; if (ac->onConnect) ac->onConnect(ac,REDIS_ERR); __redisAsyncDisconnect(ac); return REDIS_ERR; } /* Mark context as connected. */ c->flags |= REDIS_CONNECTED; if (ac->onConnect) ac->onConnect(ac,REDIS_OK); return REDIS_OK; } /* This function should be called when the socket is readable. * It processes all replies that can be read and executes their callbacks. */ void redisAsyncHandleRead(redisAsyncContext *ac) { redisContext *c = &(ac->c); if (!(c->flags & REDIS_CONNECTED)) { /* Abort connect was not successful. */ if (__redisAsyncHandleConnect(ac) != REDIS_OK) return; /* Try again later when the context is still not connected. */ if (!(c->flags & REDIS_CONNECTED)) return; } if (redisBufferRead(c) == REDIS_ERR) { __redisAsyncDisconnect(ac); } else { /* Always re-schedule reads */ _EL_ADD_READ(ac); redisProcessCallbacks(ac); } } void redisAsyncHandleWrite(redisAsyncContext *ac) { redisContext *c = &(ac->c); int done = 0; if (!(c->flags & REDIS_CONNECTED)) { /* Abort connect was not successful. */ if (__redisAsyncHandleConnect(ac) != REDIS_OK) return; /* Try again later when the context is still not connected. */ if (!(c->flags & REDIS_CONNECTED)) return; } if (redisBufferWrite(c,&done) == REDIS_ERR) { __redisAsyncDisconnect(ac); } else { /* Continue writing when not done, stop writing otherwise */ if (!done) _EL_ADD_WRITE(ac); else _EL_DEL_WRITE(ac); /* Always schedule reads after writes */ _EL_ADD_READ(ac); } } /* Sets a pointer to the first argument and its length starting at p. Returns * the number of bytes to skip to get to the following argument. */ static char *nextArgument(char *start, char **str, size_t *len) { char *p = start; if (p[0] != '$') { p = strchr(p,'$'); if (p == NULL) return NULL; } *len = (int)strtol(p+1,NULL,10); p = strchr(p,'\r'); assert(p); *str = p+2; return p+2+(*len)+2; } /* Helper function for the redisAsyncCommand* family of functions. Writes a * formatted command to the output buffer and registers the provided callback * function with the context. */ static int __redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, char *cmd, size_t len) { redisContext *c = &(ac->c); redisCallback cb; int pvariant, hasnext; char *cstr, *astr; size_t clen, alen; char *p; sds sname; /* Don't accept new commands when the connection is about to be closed. */ if (c->flags & (REDIS_DISCONNECTING | REDIS_FREEING)) return REDIS_ERR; /* Setup callback */ cb.fn = fn; cb.privdata = privdata; /* Find out which command will be appended. */ p = nextArgument(cmd,&cstr,&clen); assert(p != NULL); hasnext = (p[0] == '$'); pvariant = (tolower(cstr[0]) == 'p') ? 1 : 0; cstr += pvariant; clen -= pvariant; if (hasnext && strncasecmp(cstr,"subscribe\r\n",11) == 0) { c->flags |= REDIS_SUBSCRIBED; /* Add every channel/pattern to the list of subscription callbacks. */ while ((p = nextArgument(p,&astr,&alen)) != NULL) { sname = sdsnewlen(astr,alen); if (pvariant) dictReplace(ac->sub.patterns,sname,&cb); else dictReplace(ac->sub.channels,sname,&cb); } } else if (strncasecmp(cstr,"unsubscribe\r\n",13) == 0) { /* It is only useful to call (P)UNSUBSCRIBE when the context is * subscribed to one or more channels or patterns. */ if (!(c->flags & REDIS_SUBSCRIBED)) return REDIS_ERR; /* (P)UNSUBSCRIBE does not have its own response: every channel or * pattern that is unsubscribed will receive a message. This means we * should not append a callback function for this command. */ } else if(strncasecmp(cstr,"monitor\r\n",9) == 0) { /* Set monitor flag and push callback */ c->flags |= REDIS_MONITORING; __redisPushCallback(&ac->replies,&cb); } else { if (c->flags & REDIS_SUBSCRIBED) /* This will likely result in an error reply, but it needs to be * received and passed to the callback. */ __redisPushCallback(&ac->sub.invalid,&cb); else __redisPushCallback(&ac->replies,&cb); } __redisAppendCommand(c,cmd,len); /* Always schedule a write when the write buffer is non-empty */ _EL_ADD_WRITE(ac); return REDIS_OK; } int redisvAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, va_list ap) { char *cmd; int len; int status; len = redisvFormatCommand(&cmd,format,ap); status = __redisAsyncCommand(ac,fn,privdata,cmd,len); free(cmd); return status; } int redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, ...) { va_list ap; int status; va_start(ap,format); status = redisvAsyncCommand(ac,fn,privdata,format,ap); va_end(ap); return status; } int redisAsyncCommandArgv(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, int argc, const char **argv, const size_t *argvlen) { char *cmd; int len; int status; len = redisFormatCommandArgv(&cmd,argc,argv,argvlen); status = __redisAsyncCommand(ac,fn,privdata,cmd,len); free(cmd); return status; } redis-2.6.16/deps/hiredis/async.h000066400000000000000000000115001220734223100165550ustar00rootroot00000000000000/* * Copyright (c) 2009-2011, Salvatore Sanfilippo * Copyright (c) 2010-2011, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __HIREDIS_ASYNC_H #define __HIREDIS_ASYNC_H #include "hiredis.h" #ifdef __cplusplus extern "C" { #endif struct redisAsyncContext; /* need forward declaration of redisAsyncContext */ struct dict; /* dictionary header is included in async.c */ /* Reply callback prototype and container */ typedef void (redisCallbackFn)(struct redisAsyncContext*, void*, void*); typedef struct redisCallback { struct redisCallback *next; /* simple singly linked list */ redisCallbackFn *fn; void *privdata; } redisCallback; /* List of callbacks for either regular replies or pub/sub */ typedef struct redisCallbackList { redisCallback *head, *tail; } redisCallbackList; /* Connection callback prototypes */ typedef void (redisDisconnectCallback)(const struct redisAsyncContext*, int status); typedef void (redisConnectCallback)(const struct redisAsyncContext*, int status); /* Context for an async connection to Redis */ typedef struct redisAsyncContext { /* Hold the regular context, so it can be realloc'ed. */ redisContext c; /* Setup error flags so they can be used directly. */ int err; char *errstr; /* Not used by hiredis */ void *data; /* Event library data and hooks */ struct { void *data; /* Hooks that are called when the library expects to start * reading/writing. These functions should be idempotent. */ void (*addRead)(void *privdata); void (*delRead)(void *privdata); void (*addWrite)(void *privdata); void (*delWrite)(void *privdata); void (*cleanup)(void *privdata); } ev; /* Called when either the connection is terminated due to an error or per * user request. The status is set accordingly (REDIS_OK, REDIS_ERR). */ redisDisconnectCallback *onDisconnect; /* Called when the first write event was received. */ redisConnectCallback *onConnect; /* Regular command callbacks */ redisCallbackList replies; /* Subscription callbacks */ struct { redisCallbackList invalid; struct dict *channels; struct dict *patterns; } sub; } redisAsyncContext; /* Functions that proxy to hiredis */ redisAsyncContext *redisAsyncConnect(const char *ip, int port); redisAsyncContext *redisAsyncConnectUnix(const char *path); int redisAsyncSetConnectCallback(redisAsyncContext *ac, redisConnectCallback *fn); int redisAsyncSetDisconnectCallback(redisAsyncContext *ac, redisDisconnectCallback *fn); void redisAsyncDisconnect(redisAsyncContext *ac); void redisAsyncFree(redisAsyncContext *ac); /* Handle read/write events */ void redisAsyncHandleRead(redisAsyncContext *ac); void redisAsyncHandleWrite(redisAsyncContext *ac); /* Command functions for an async context. Write the command to the * output buffer and register the provided callback. */ int redisvAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, va_list ap); int redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, ...); int redisAsyncCommandArgv(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, int argc, const char **argv, const size_t *argvlen); #ifdef __cplusplus } #endif #endif redis-2.6.16/deps/hiredis/dict.c000066400000000000000000000244651220734223100163740ustar00rootroot00000000000000/* Hash table implementation. * * This file implements in memory hash tables with insert/del/replace/find/ * get-random-element operations. Hash tables will auto resize if needed * tables of power of two in size are used, collisions are handled by * chaining. See the source code for more information... :) * * Copyright (c) 2006-2010, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "fmacros.h" #include #include #include #include "dict.h" /* -------------------------- private prototypes ---------------------------- */ static int _dictExpandIfNeeded(dict *ht); static unsigned long _dictNextPower(unsigned long size); static int _dictKeyIndex(dict *ht, const void *key); static int _dictInit(dict *ht, dictType *type, void *privDataPtr); /* -------------------------- hash functions -------------------------------- */ /* Generic hash function (a popular one from Bernstein). * I tested a few and this was the best. */ static unsigned int dictGenHashFunction(const unsigned char *buf, int len) { unsigned int hash = 5381; while (len--) hash = ((hash << 5) + hash) + (*buf++); /* hash * 33 + c */ return hash; } /* ----------------------------- API implementation ------------------------- */ /* Reset an hashtable already initialized with ht_init(). * NOTE: This function should only called by ht_destroy(). */ static void _dictReset(dict *ht) { ht->table = NULL; ht->size = 0; ht->sizemask = 0; ht->used = 0; } /* Create a new hash table */ static dict *dictCreate(dictType *type, void *privDataPtr) { dict *ht = malloc(sizeof(*ht)); _dictInit(ht,type,privDataPtr); return ht; } /* Initialize the hash table */ static int _dictInit(dict *ht, dictType *type, void *privDataPtr) { _dictReset(ht); ht->type = type; ht->privdata = privDataPtr; return DICT_OK; } /* Expand or create the hashtable */ static int dictExpand(dict *ht, unsigned long size) { dict n; /* the new hashtable */ unsigned long realsize = _dictNextPower(size), i; /* the size is invalid if it is smaller than the number of * elements already inside the hashtable */ if (ht->used > size) return DICT_ERR; _dictInit(&n, ht->type, ht->privdata); n.size = realsize; n.sizemask = realsize-1; n.table = calloc(realsize,sizeof(dictEntry*)); /* Copy all the elements from the old to the new table: * note that if the old hash table is empty ht->size is zero, * so dictExpand just creates an hash table. */ n.used = ht->used; for (i = 0; i < ht->size && ht->used > 0; i++) { dictEntry *he, *nextHe; if (ht->table[i] == NULL) continue; /* For each hash entry on this slot... */ he = ht->table[i]; while(he) { unsigned int h; nextHe = he->next; /* Get the new element index */ h = dictHashKey(ht, he->key) & n.sizemask; he->next = n.table[h]; n.table[h] = he; ht->used--; /* Pass to the next element */ he = nextHe; } } assert(ht->used == 0); free(ht->table); /* Remap the new hashtable in the old */ *ht = n; return DICT_OK; } /* Add an element to the target hash table */ static int dictAdd(dict *ht, void *key, void *val) { int index; dictEntry *entry; /* Get the index of the new element, or -1 if * the element already exists. */ if ((index = _dictKeyIndex(ht, key)) == -1) return DICT_ERR; /* Allocates the memory and stores key */ entry = malloc(sizeof(*entry)); entry->next = ht->table[index]; ht->table[index] = entry; /* Set the hash entry fields. */ dictSetHashKey(ht, entry, key); dictSetHashVal(ht, entry, val); ht->used++; return DICT_OK; } /* Add an element, discarding the old if the key already exists. * Return 1 if the key was added from scratch, 0 if there was already an * element with such key and dictReplace() just performed a value update * operation. */ static int dictReplace(dict *ht, void *key, void *val) { dictEntry *entry, auxentry; /* Try to add the element. If the key * does not exists dictAdd will suceed. */ if (dictAdd(ht, key, val) == DICT_OK) return 1; /* It already exists, get the entry */ entry = dictFind(ht, key); /* Free the old value and set the new one */ /* Set the new value and free the old one. Note that it is important * to do that in this order, as the value may just be exactly the same * as the previous one. In this context, think to reference counting, * you want to increment (set), and then decrement (free), and not the * reverse. */ auxentry = *entry; dictSetHashVal(ht, entry, val); dictFreeEntryVal(ht, &auxentry); return 0; } /* Search and remove an element */ static int dictDelete(dict *ht, const void *key) { unsigned int h; dictEntry *de, *prevde; if (ht->size == 0) return DICT_ERR; h = dictHashKey(ht, key) & ht->sizemask; de = ht->table[h]; prevde = NULL; while(de) { if (dictCompareHashKeys(ht,key,de->key)) { /* Unlink the element from the list */ if (prevde) prevde->next = de->next; else ht->table[h] = de->next; dictFreeEntryKey(ht,de); dictFreeEntryVal(ht,de); free(de); ht->used--; return DICT_OK; } prevde = de; de = de->next; } return DICT_ERR; /* not found */ } /* Destroy an entire hash table */ static int _dictClear(dict *ht) { unsigned long i; /* Free all the elements */ for (i = 0; i < ht->size && ht->used > 0; i++) { dictEntry *he, *nextHe; if ((he = ht->table[i]) == NULL) continue; while(he) { nextHe = he->next; dictFreeEntryKey(ht, he); dictFreeEntryVal(ht, he); free(he); ht->used--; he = nextHe; } } /* Free the table and the allocated cache structure */ free(ht->table); /* Re-initialize the table */ _dictReset(ht); return DICT_OK; /* never fails */ } /* Clear & Release the hash table */ static void dictRelease(dict *ht) { _dictClear(ht); free(ht); } static dictEntry *dictFind(dict *ht, const void *key) { dictEntry *he; unsigned int h; if (ht->size == 0) return NULL; h = dictHashKey(ht, key) & ht->sizemask; he = ht->table[h]; while(he) { if (dictCompareHashKeys(ht, key, he->key)) return he; he = he->next; } return NULL; } static dictIterator *dictGetIterator(dict *ht) { dictIterator *iter = malloc(sizeof(*iter)); iter->ht = ht; iter->index = -1; iter->entry = NULL; iter->nextEntry = NULL; return iter; } static dictEntry *dictNext(dictIterator *iter) { while (1) { if (iter->entry == NULL) { iter->index++; if (iter->index >= (signed)iter->ht->size) break; iter->entry = iter->ht->table[iter->index]; } else { iter->entry = iter->nextEntry; } if (iter->entry) { /* We need to save the 'next' here, the iterator user * may delete the entry we are returning. */ iter->nextEntry = iter->entry->next; return iter->entry; } } return NULL; } static void dictReleaseIterator(dictIterator *iter) { free(iter); } /* ------------------------- private functions ------------------------------ */ /* Expand the hash table if needed */ static int _dictExpandIfNeeded(dict *ht) { /* If the hash table is empty expand it to the intial size, * if the table is "full" dobule its size. */ if (ht->size == 0) return dictExpand(ht, DICT_HT_INITIAL_SIZE); if (ht->used == ht->size) return dictExpand(ht, ht->size*2); return DICT_OK; } /* Our hash table capability is a power of two */ static unsigned long _dictNextPower(unsigned long size) { unsigned long i = DICT_HT_INITIAL_SIZE; if (size >= LONG_MAX) return LONG_MAX; while(1) { if (i >= size) return i; i *= 2; } } /* Returns the index of a free slot that can be populated with * an hash entry for the given 'key'. * If the key already exists, -1 is returned. */ static int _dictKeyIndex(dict *ht, const void *key) { unsigned int h; dictEntry *he; /* Expand the hashtable if needed */ if (_dictExpandIfNeeded(ht) == DICT_ERR) return -1; /* Compute the key hash value */ h = dictHashKey(ht, key) & ht->sizemask; /* Search if this slot does not already contain the given key */ he = ht->table[h]; while(he) { if (dictCompareHashKeys(ht, key, he->key)) return -1; he = he->next; } return h; } redis-2.6.16/deps/hiredis/dict.h000066400000000000000000000111231220734223100163640ustar00rootroot00000000000000/* Hash table implementation. * * This file implements in memory hash tables with insert/del/replace/find/ * get-random-element operations. Hash tables will auto resize if needed * tables of power of two in size are used, collisions are handled by * chaining. See the source code for more information... :) * * Copyright (c) 2006-2010, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __DICT_H #define __DICT_H #define DICT_OK 0 #define DICT_ERR 1 /* Unused arguments generate annoying warnings... */ #define DICT_NOTUSED(V) ((void) V) typedef struct dictEntry { void *key; void *val; struct dictEntry *next; } dictEntry; typedef struct dictType { unsigned int (*hashFunction)(const void *key); void *(*keyDup)(void *privdata, const void *key); void *(*valDup)(void *privdata, const void *obj); int (*keyCompare)(void *privdata, const void *key1, const void *key2); void (*keyDestructor)(void *privdata, void *key); void (*valDestructor)(void *privdata, void *obj); } dictType; typedef struct dict { dictEntry **table; dictType *type; unsigned long size; unsigned long sizemask; unsigned long used; void *privdata; } dict; typedef struct dictIterator { dict *ht; int index; dictEntry *entry, *nextEntry; } dictIterator; /* This is the initial size of every hash table */ #define DICT_HT_INITIAL_SIZE 4 /* ------------------------------- Macros ------------------------------------*/ #define dictFreeEntryVal(ht, entry) \ if ((ht)->type->valDestructor) \ (ht)->type->valDestructor((ht)->privdata, (entry)->val) #define dictSetHashVal(ht, entry, _val_) do { \ if ((ht)->type->valDup) \ entry->val = (ht)->type->valDup((ht)->privdata, _val_); \ else \ entry->val = (_val_); \ } while(0) #define dictFreeEntryKey(ht, entry) \ if ((ht)->type->keyDestructor) \ (ht)->type->keyDestructor((ht)->privdata, (entry)->key) #define dictSetHashKey(ht, entry, _key_) do { \ if ((ht)->type->keyDup) \ entry->key = (ht)->type->keyDup((ht)->privdata, _key_); \ else \ entry->key = (_key_); \ } while(0) #define dictCompareHashKeys(ht, key1, key2) \ (((ht)->type->keyCompare) ? \ (ht)->type->keyCompare((ht)->privdata, key1, key2) : \ (key1) == (key2)) #define dictHashKey(ht, key) (ht)->type->hashFunction(key) #define dictGetEntryKey(he) ((he)->key) #define dictGetEntryVal(he) ((he)->val) #define dictSlots(ht) ((ht)->size) #define dictSize(ht) ((ht)->used) /* API */ static unsigned int dictGenHashFunction(const unsigned char *buf, int len); static dict *dictCreate(dictType *type, void *privDataPtr); static int dictExpand(dict *ht, unsigned long size); static int dictAdd(dict *ht, void *key, void *val); static int dictReplace(dict *ht, void *key, void *val); static int dictDelete(dict *ht, const void *key); static void dictRelease(dict *ht); static dictEntry * dictFind(dict *ht, const void *key); static dictIterator *dictGetIterator(dict *ht); static dictEntry *dictNext(dictIterator *iter); static void dictReleaseIterator(dictIterator *iter); #endif /* __DICT_H */ redis-2.6.16/deps/hiredis/example-ae.c000066400000000000000000000027541220734223100174640ustar00rootroot00000000000000#include #include #include #include #include "hiredis.h" #include "async.h" #include "adapters/ae.h" /* Put event loop in the global scope, so it can be explicitly stopped */ static aeEventLoop *loop; void getCallback(redisAsyncContext *c, void *r, void *privdata) { redisReply *reply = r; if (reply == NULL) return; printf("argv[%s]: %s\n", (char*)privdata, reply->str); /* Disconnect after receiving the reply to GET */ redisAsyncDisconnect(c); } void connectCallback(const redisAsyncContext *c, int status) { if (status != REDIS_OK) { printf("Error: %s\n", c->errstr); return; } printf("Connected...\n"); } void disconnectCallback(const redisAsyncContext *c, int status) { if (status != REDIS_OK) { printf("Error: %s\n", c->errstr); return; } printf("Disconnected...\n"); } int main (int argc, char **argv) { signal(SIGPIPE, SIG_IGN); redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379); if (c->err) { /* Let *c leak for now... */ printf("Error: %s\n", c->errstr); return 1; } loop = aeCreateEventLoop(); redisAeAttach(loop, c); redisAsyncSetConnectCallback(c,connectCallback); redisAsyncSetDisconnectCallback(c,disconnectCallback); redisAsyncCommand(c, NULL, NULL, "SET key %b", argv[argc-1], strlen(argv[argc-1])); redisAsyncCommand(c, getCallback, (char*)"end-1", "GET key"); aeMain(loop); return 0; } redis-2.6.16/deps/hiredis/example-libev.c000066400000000000000000000025741220734223100202000ustar00rootroot00000000000000#include #include #include #include #include "hiredis.h" #include "async.h" #include "adapters/libev.h" void getCallback(redisAsyncContext *c, void *r, void *privdata) { redisReply *reply = r; if (reply == NULL) return; printf("argv[%s]: %s\n", (char*)privdata, reply->str); /* Disconnect after receiving the reply to GET */ redisAsyncDisconnect(c); } void connectCallback(const redisAsyncContext *c, int status) { if (status != REDIS_OK) { printf("Error: %s\n", c->errstr); return; } printf("Connected...\n"); } void disconnectCallback(const redisAsyncContext *c, int status) { if (status != REDIS_OK) { printf("Error: %s\n", c->errstr); return; } printf("Disconnected...\n"); } int main (int argc, char **argv) { signal(SIGPIPE, SIG_IGN); redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379); if (c->err) { /* Let *c leak for now... */ printf("Error: %s\n", c->errstr); return 1; } redisLibevAttach(EV_DEFAULT_ c); redisAsyncSetConnectCallback(c,connectCallback); redisAsyncSetDisconnectCallback(c,disconnectCallback); redisAsyncCommand(c, NULL, NULL, "SET key %b", argv[argc-1], strlen(argv[argc-1])); redisAsyncCommand(c, getCallback, (char*)"end-1", "GET key"); ev_loop(EV_DEFAULT_ 0); return 0; } redis-2.6.16/deps/hiredis/example-libevent.c000066400000000000000000000026561220734223100207100ustar00rootroot00000000000000#include #include #include #include #include "hiredis.h" #include "async.h" #include "adapters/libevent.h" void getCallback(redisAsyncContext *c, void *r, void *privdata) { redisReply *reply = r; if (reply == NULL) return; printf("argv[%s]: %s\n", (char*)privdata, reply->str); /* Disconnect after receiving the reply to GET */ redisAsyncDisconnect(c); } void connectCallback(const redisAsyncContext *c, int status) { if (status != REDIS_OK) { printf("Error: %s\n", c->errstr); return; } printf("Connected...\n"); } void disconnectCallback(const redisAsyncContext *c, int status) { if (status != REDIS_OK) { printf("Error: %s\n", c->errstr); return; } printf("Disconnected...\n"); } int main (int argc, char **argv) { signal(SIGPIPE, SIG_IGN); struct event_base *base = event_base_new(); redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379); if (c->err) { /* Let *c leak for now... */ printf("Error: %s\n", c->errstr); return 1; } redisLibeventAttach(c,base); redisAsyncSetConnectCallback(c,connectCallback); redisAsyncSetDisconnectCallback(c,disconnectCallback); redisAsyncCommand(c, NULL, NULL, "SET key %b", argv[argc-1], strlen(argv[argc-1])); redisAsyncCommand(c, getCallback, (char*)"end-1", "GET key"); event_base_dispatch(base); return 0; } redis-2.6.16/deps/hiredis/example.c000066400000000000000000000035241220734223100170750ustar00rootroot00000000000000#include #include #include #include "hiredis.h" int main(void) { unsigned int j; redisContext *c; redisReply *reply; struct timeval timeout = { 1, 500000 }; // 1.5 seconds c = redisConnectWithTimeout((char*)"127.0.0.2", 6379, timeout); if (c->err) { printf("Connection error: %s\n", c->errstr); exit(1); } /* PING server */ reply = redisCommand(c,"PING"); printf("PING: %s\n", reply->str); freeReplyObject(reply); /* Set a key */ reply = redisCommand(c,"SET %s %s", "foo", "hello world"); printf("SET: %s\n", reply->str); freeReplyObject(reply); /* Set a key using binary safe API */ reply = redisCommand(c,"SET %b %b", "bar", 3, "hello", 5); printf("SET (binary API): %s\n", reply->str); freeReplyObject(reply); /* Try a GET and two INCR */ reply = redisCommand(c,"GET foo"); printf("GET foo: %s\n", reply->str); freeReplyObject(reply); reply = redisCommand(c,"INCR counter"); printf("INCR counter: %lld\n", reply->integer); freeReplyObject(reply); /* again ... */ reply = redisCommand(c,"INCR counter"); printf("INCR counter: %lld\n", reply->integer); freeReplyObject(reply); /* Create a list of numbers, from 0 to 9 */ reply = redisCommand(c,"DEL mylist"); freeReplyObject(reply); for (j = 0; j < 10; j++) { char buf[64]; snprintf(buf,64,"%d",j); reply = redisCommand(c,"LPUSH mylist element-%s", buf); freeReplyObject(reply); } /* Let's check what we have inside the list */ reply = redisCommand(c,"LRANGE mylist 0 -1"); if (reply->type == REDIS_REPLY_ARRAY) { for (j = 0; j < reply->elements; j++) { printf("%u) %s\n", j, reply->element[j]->str); } } freeReplyObject(reply); return 0; } redis-2.6.16/deps/hiredis/fmacros.h000066400000000000000000000004571220734223100171030ustar00rootroot00000000000000#ifndef __HIREDIS_FMACRO_H #define __HIREDIS_FMACRO_H #if !defined(_BSD_SOURCE) #define _BSD_SOURCE #endif #if defined(__sun__) #define _POSIX_C_SOURCE 200112L #elif defined(__linux__) || defined(__OpenBSD__) || defined(__NetBSD__) #define _XOPEN_SOURCE 600 #else #define _XOPEN_SOURCE #endif #endif redis-2.6.16/deps/hiredis/hiredis.c000066400000000000000000001075631220734223100171010ustar00rootroot00000000000000/* * Copyright (c) 2009-2011, Salvatore Sanfilippo * Copyright (c) 2010-2011, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "fmacros.h" #include #include #include #include #include #include #include "hiredis.h" #include "net.h" #include "sds.h" static redisReply *createReplyObject(int type); static void *createStringObject(const redisReadTask *task, char *str, size_t len); static void *createArrayObject(const redisReadTask *task, int elements); static void *createIntegerObject(const redisReadTask *task, long long value); static void *createNilObject(const redisReadTask *task); /* Default set of functions to build the reply. Keep in mind that such a * function returning NULL is interpreted as OOM. */ static redisReplyObjectFunctions defaultFunctions = { createStringObject, createArrayObject, createIntegerObject, createNilObject, freeReplyObject }; /* Create a reply object */ static redisReply *createReplyObject(int type) { redisReply *r = calloc(1,sizeof(*r)); if (r == NULL) return NULL; r->type = type; return r; } /* Free a reply object */ void freeReplyObject(void *reply) { redisReply *r = reply; size_t j; switch(r->type) { case REDIS_REPLY_INTEGER: break; /* Nothing to free */ case REDIS_REPLY_ARRAY: if (r->element != NULL) { for (j = 0; j < r->elements; j++) if (r->element[j] != NULL) freeReplyObject(r->element[j]); free(r->element); } break; case REDIS_REPLY_ERROR: case REDIS_REPLY_STATUS: case REDIS_REPLY_STRING: if (r->str != NULL) free(r->str); break; } free(r); } static void *createStringObject(const redisReadTask *task, char *str, size_t len) { redisReply *r, *parent; char *buf; r = createReplyObject(task->type); if (r == NULL) return NULL; buf = malloc(len+1); if (buf == NULL) { freeReplyObject(r); return NULL; } assert(task->type == REDIS_REPLY_ERROR || task->type == REDIS_REPLY_STATUS || task->type == REDIS_REPLY_STRING); /* Copy string value */ memcpy(buf,str,len); buf[len] = '\0'; r->str = buf; r->len = len; if (task->parent) { parent = task->parent->obj; assert(parent->type == REDIS_REPLY_ARRAY); parent->element[task->idx] = r; } return r; } static void *createArrayObject(const redisReadTask *task, int elements) { redisReply *r, *parent; r = createReplyObject(REDIS_REPLY_ARRAY); if (r == NULL) return NULL; if (elements > 0) { r->element = calloc(elements,sizeof(redisReply*)); if (r->element == NULL) { freeReplyObject(r); return NULL; } } r->elements = elements; if (task->parent) { parent = task->parent->obj; assert(parent->type == REDIS_REPLY_ARRAY); parent->element[task->idx] = r; } return r; } static void *createIntegerObject(const redisReadTask *task, long long value) { redisReply *r, *parent; r = createReplyObject(REDIS_REPLY_INTEGER); if (r == NULL) return NULL; r->integer = value; if (task->parent) { parent = task->parent->obj; assert(parent->type == REDIS_REPLY_ARRAY); parent->element[task->idx] = r; } return r; } static void *createNilObject(const redisReadTask *task) { redisReply *r, *parent; r = createReplyObject(REDIS_REPLY_NIL); if (r == NULL) return NULL; if (task->parent) { parent = task->parent->obj; assert(parent->type == REDIS_REPLY_ARRAY); parent->element[task->idx] = r; } return r; } static void __redisReaderSetError(redisReader *r, int type, const char *str) { size_t len; if (r->reply != NULL && r->fn && r->fn->freeObject) { r->fn->freeObject(r->reply); r->reply = NULL; } /* Clear input buffer on errors. */ if (r->buf != NULL) { sdsfree(r->buf); r->buf = NULL; r->pos = r->len = 0; } /* Reset task stack. */ r->ridx = -1; /* Set error. */ r->err = type; len = strlen(str); len = len < (sizeof(r->errstr)-1) ? len : (sizeof(r->errstr)-1); memcpy(r->errstr,str,len); r->errstr[len] = '\0'; } static size_t chrtos(char *buf, size_t size, char byte) { size_t len = 0; switch(byte) { case '\\': case '"': len = snprintf(buf,size,"\"\\%c\"",byte); break; case '\n': len = snprintf(buf,size,"\"\\n\""); break; case '\r': len = snprintf(buf,size,"\"\\r\""); break; case '\t': len = snprintf(buf,size,"\"\\t\""); break; case '\a': len = snprintf(buf,size,"\"\\a\""); break; case '\b': len = snprintf(buf,size,"\"\\b\""); break; default: if (isprint(byte)) len = snprintf(buf,size,"\"%c\"",byte); else len = snprintf(buf,size,"\"\\x%02x\"",(unsigned char)byte); break; } return len; } static void __redisReaderSetErrorProtocolByte(redisReader *r, char byte) { char cbuf[8], sbuf[128]; chrtos(cbuf,sizeof(cbuf),byte); snprintf(sbuf,sizeof(sbuf), "Protocol error, got %s as reply type byte", cbuf); __redisReaderSetError(r,REDIS_ERR_PROTOCOL,sbuf); } static void __redisReaderSetErrorOOM(redisReader *r) { __redisReaderSetError(r,REDIS_ERR_OOM,"Out of memory"); } static char *readBytes(redisReader *r, unsigned int bytes) { char *p; if (r->len-r->pos >= bytes) { p = r->buf+r->pos; r->pos += bytes; return p; } return NULL; } /* Find pointer to \r\n. */ static char *seekNewline(char *s, size_t len) { int pos = 0; int _len = len-1; /* Position should be < len-1 because the character at "pos" should be * followed by a \n. Note that strchr cannot be used because it doesn't * allow to search a limited length and the buffer that is being searched * might not have a trailing NULL character. */ while (pos < _len) { while(pos < _len && s[pos] != '\r') pos++; if (s[pos] != '\r') { /* Not found. */ return NULL; } else { if (s[pos+1] == '\n') { /* Found. */ return s+pos; } else { /* Continue searching. */ pos++; } } } return NULL; } /* Read a long long value starting at *s, under the assumption that it will be * terminated by \r\n. Ambiguously returns -1 for unexpected input. */ static long long readLongLong(char *s) { long long v = 0; int dec, mult = 1; char c; if (*s == '-') { mult = -1; s++; } else if (*s == '+') { mult = 1; s++; } while ((c = *(s++)) != '\r') { dec = c - '0'; if (dec >= 0 && dec < 10) { v *= 10; v += dec; } else { /* Should not happen... */ return -1; } } return mult*v; } static char *readLine(redisReader *r, int *_len) { char *p, *s; int len; p = r->buf+r->pos; s = seekNewline(p,(r->len-r->pos)); if (s != NULL) { len = s-(r->buf+r->pos); r->pos += len+2; /* skip \r\n */ if (_len) *_len = len; return p; } return NULL; } static void moveToNextTask(redisReader *r) { redisReadTask *cur, *prv; while (r->ridx >= 0) { /* Return a.s.a.p. when the stack is now empty. */ if (r->ridx == 0) { r->ridx--; return; } cur = &(r->rstack[r->ridx]); prv = &(r->rstack[r->ridx-1]); assert(prv->type == REDIS_REPLY_ARRAY); if (cur->idx == prv->elements-1) { r->ridx--; } else { /* Reset the type because the next item can be anything */ assert(cur->idx < prv->elements); cur->type = -1; cur->elements = -1; cur->idx++; return; } } } static int processLineItem(redisReader *r) { redisReadTask *cur = &(r->rstack[r->ridx]); void *obj; char *p; int len; if ((p = readLine(r,&len)) != NULL) { if (cur->type == REDIS_REPLY_INTEGER) { if (r->fn && r->fn->createInteger) obj = r->fn->createInteger(cur,readLongLong(p)); else obj = (void*)REDIS_REPLY_INTEGER; } else { /* Type will be error or status. */ if (r->fn && r->fn->createString) obj = r->fn->createString(cur,p,len); else obj = (void*)(size_t)(cur->type); } if (obj == NULL) { __redisReaderSetErrorOOM(r); return REDIS_ERR; } /* Set reply if this is the root object. */ if (r->ridx == 0) r->reply = obj; moveToNextTask(r); return REDIS_OK; } return REDIS_ERR; } static int processBulkItem(redisReader *r) { redisReadTask *cur = &(r->rstack[r->ridx]); void *obj = NULL; char *p, *s; long len; unsigned long bytelen; int success = 0; p = r->buf+r->pos; s = seekNewline(p,r->len-r->pos); if (s != NULL) { p = r->buf+r->pos; bytelen = s-(r->buf+r->pos)+2; /* include \r\n */ len = readLongLong(p); if (len < 0) { /* The nil object can always be created. */ if (r->fn && r->fn->createNil) obj = r->fn->createNil(cur); else obj = (void*)REDIS_REPLY_NIL; success = 1; } else { /* Only continue when the buffer contains the entire bulk item. */ bytelen += len+2; /* include \r\n */ if (r->pos+bytelen <= r->len) { if (r->fn && r->fn->createString) obj = r->fn->createString(cur,s+2,len); else obj = (void*)REDIS_REPLY_STRING; success = 1; } } /* Proceed when obj was created. */ if (success) { if (obj == NULL) { __redisReaderSetErrorOOM(r); return REDIS_ERR; } r->pos += bytelen; /* Set reply if this is the root object. */ if (r->ridx == 0) r->reply = obj; moveToNextTask(r); return REDIS_OK; } } return REDIS_ERR; } static int processMultiBulkItem(redisReader *r) { redisReadTask *cur = &(r->rstack[r->ridx]); void *obj; char *p; long elements; int root = 0; /* Set error for nested multi bulks with depth > 7 */ if (r->ridx == 8) { __redisReaderSetError(r,REDIS_ERR_PROTOCOL, "No support for nested multi bulk replies with depth > 7"); return REDIS_ERR; } if ((p = readLine(r,NULL)) != NULL) { elements = readLongLong(p); root = (r->ridx == 0); if (elements == -1) { if (r->fn && r->fn->createNil) obj = r->fn->createNil(cur); else obj = (void*)REDIS_REPLY_NIL; if (obj == NULL) { __redisReaderSetErrorOOM(r); return REDIS_ERR; } moveToNextTask(r); } else { if (r->fn && r->fn->createArray) obj = r->fn->createArray(cur,elements); else obj = (void*)REDIS_REPLY_ARRAY; if (obj == NULL) { __redisReaderSetErrorOOM(r); return REDIS_ERR; } /* Modify task stack when there are more than 0 elements. */ if (elements > 0) { cur->elements = elements; cur->obj = obj; r->ridx++; r->rstack[r->ridx].type = -1; r->rstack[r->ridx].elements = -1; r->rstack[r->ridx].idx = 0; r->rstack[r->ridx].obj = NULL; r->rstack[r->ridx].parent = cur; r->rstack[r->ridx].privdata = r->privdata; } else { moveToNextTask(r); } } /* Set reply if this is the root object. */ if (root) r->reply = obj; return REDIS_OK; } return REDIS_ERR; } static int processItem(redisReader *r) { redisReadTask *cur = &(r->rstack[r->ridx]); char *p; /* check if we need to read type */ if (cur->type < 0) { if ((p = readBytes(r,1)) != NULL) { switch (p[0]) { case '-': cur->type = REDIS_REPLY_ERROR; break; case '+': cur->type = REDIS_REPLY_STATUS; break; case ':': cur->type = REDIS_REPLY_INTEGER; break; case '$': cur->type = REDIS_REPLY_STRING; break; case '*': cur->type = REDIS_REPLY_ARRAY; break; default: __redisReaderSetErrorProtocolByte(r,*p); return REDIS_ERR; } } else { /* could not consume 1 byte */ return REDIS_ERR; } } /* process typed item */ switch(cur->type) { case REDIS_REPLY_ERROR: case REDIS_REPLY_STATUS: case REDIS_REPLY_INTEGER: return processLineItem(r); case REDIS_REPLY_STRING: return processBulkItem(r); case REDIS_REPLY_ARRAY: return processMultiBulkItem(r); default: assert(NULL); return REDIS_ERR; /* Avoid warning. */ } } redisReader *redisReaderCreate(void) { redisReader *r; r = calloc(sizeof(redisReader),1); if (r == NULL) return NULL; r->err = 0; r->errstr[0] = '\0'; r->fn = &defaultFunctions; r->buf = sdsempty(); r->maxbuf = REDIS_READER_MAX_BUF; if (r->buf == NULL) { free(r); return NULL; } r->ridx = -1; return r; } void redisReaderFree(redisReader *r) { if (r->reply != NULL && r->fn && r->fn->freeObject) r->fn->freeObject(r->reply); if (r->buf != NULL) sdsfree(r->buf); free(r); } int redisReaderFeed(redisReader *r, const char *buf, size_t len) { sds newbuf; /* Return early when this reader is in an erroneous state. */ if (r->err) return REDIS_ERR; /* Copy the provided buffer. */ if (buf != NULL && len >= 1) { /* Destroy internal buffer when it is empty and is quite large. */ if (r->len == 0 && r->maxbuf != 0 && sdsavail(r->buf) > r->maxbuf) { sdsfree(r->buf); r->buf = sdsempty(); r->pos = 0; /* r->buf should not be NULL since we just free'd a larger one. */ assert(r->buf != NULL); } newbuf = sdscatlen(r->buf,buf,len); if (newbuf == NULL) { __redisReaderSetErrorOOM(r); return REDIS_ERR; } r->buf = newbuf; r->len = sdslen(r->buf); } return REDIS_OK; } int redisReaderGetReply(redisReader *r, void **reply) { /* Default target pointer to NULL. */ if (reply != NULL) *reply = NULL; /* Return early when this reader is in an erroneous state. */ if (r->err) return REDIS_ERR; /* When the buffer is empty, there will never be a reply. */ if (r->len == 0) return REDIS_OK; /* Set first item to process when the stack is empty. */ if (r->ridx == -1) { r->rstack[0].type = -1; r->rstack[0].elements = -1; r->rstack[0].idx = -1; r->rstack[0].obj = NULL; r->rstack[0].parent = NULL; r->rstack[0].privdata = r->privdata; r->ridx = 0; } /* Process items in reply. */ while (r->ridx >= 0) if (processItem(r) != REDIS_OK) break; /* Return ASAP when an error occurred. */ if (r->err) return REDIS_ERR; /* Discard part of the buffer when we've consumed at least 1k, to avoid * doing unnecessary calls to memmove() in sds.c. */ if (r->pos >= 1024) { r->buf = sdsrange(r->buf,r->pos,-1); r->pos = 0; r->len = sdslen(r->buf); } /* Emit a reply when there is one. */ if (r->ridx == -1) { if (reply != NULL) *reply = r->reply; r->reply = NULL; } return REDIS_OK; } /* Calculate the number of bytes needed to represent an integer as string. */ static int intlen(int i) { int len = 0; if (i < 0) { len++; i = -i; } do { len++; i /= 10; } while(i); return len; } /* Helper that calculates the bulk length given a certain string length. */ static size_t bulklen(size_t len) { return 1+intlen(len)+2+len+2; } int redisvFormatCommand(char **target, const char *format, va_list ap) { const char *c = format; char *cmd = NULL; /* final command */ int pos; /* position in final command */ sds curarg, newarg; /* current argument */ int touched = 0; /* was the current argument touched? */ char **curargv = NULL, **newargv = NULL; int argc = 0; int totlen = 0; int j; /* Abort if there is not target to set */ if (target == NULL) return -1; /* Build the command string accordingly to protocol */ curarg = sdsempty(); if (curarg == NULL) return -1; while(*c != '\0') { if (*c != '%' || c[1] == '\0') { if (*c == ' ') { if (touched) { newargv = realloc(curargv,sizeof(char*)*(argc+1)); if (newargv == NULL) goto err; curargv = newargv; curargv[argc++] = curarg; totlen += bulklen(sdslen(curarg)); /* curarg is put in argv so it can be overwritten. */ curarg = sdsempty(); if (curarg == NULL) goto err; touched = 0; } } else { newarg = sdscatlen(curarg,c,1); if (newarg == NULL) goto err; curarg = newarg; touched = 1; } } else { char *arg; size_t size; /* Set newarg so it can be checked even if it is not touched. */ newarg = curarg; switch(c[1]) { case 's': arg = va_arg(ap,char*); size = strlen(arg); if (size > 0) newarg = sdscatlen(curarg,arg,size); break; case 'b': arg = va_arg(ap,char*); size = va_arg(ap,size_t); if (size > 0) newarg = sdscatlen(curarg,arg,size); break; case '%': newarg = sdscat(curarg,"%"); break; default: /* Try to detect printf format */ { static const char intfmts[] = "diouxX"; char _format[16]; const char *_p = c+1; size_t _l = 0; va_list _cpy; /* Flags */ if (*_p != '\0' && *_p == '#') _p++; if (*_p != '\0' && *_p == '0') _p++; if (*_p != '\0' && *_p == '-') _p++; if (*_p != '\0' && *_p == ' ') _p++; if (*_p != '\0' && *_p == '+') _p++; /* Field width */ while (*_p != '\0' && isdigit(*_p)) _p++; /* Precision */ if (*_p == '.') { _p++; while (*_p != '\0' && isdigit(*_p)) _p++; } /* Copy va_list before consuming with va_arg */ va_copy(_cpy,ap); /* Integer conversion (without modifiers) */ if (strchr(intfmts,*_p) != NULL) { va_arg(ap,int); goto fmt_valid; } /* Double conversion (without modifiers) */ if (strchr("eEfFgGaA",*_p) != NULL) { va_arg(ap,double); goto fmt_valid; } /* Size: char */ if (_p[0] == 'h' && _p[1] == 'h') { _p += 2; if (*_p != '\0' && strchr(intfmts,*_p) != NULL) { va_arg(ap,int); /* char gets promoted to int */ goto fmt_valid; } goto fmt_invalid; } /* Size: short */ if (_p[0] == 'h') { _p += 1; if (*_p != '\0' && strchr(intfmts,*_p) != NULL) { va_arg(ap,int); /* short gets promoted to int */ goto fmt_valid; } goto fmt_invalid; } /* Size: long long */ if (_p[0] == 'l' && _p[1] == 'l') { _p += 2; if (*_p != '\0' && strchr(intfmts,*_p) != NULL) { va_arg(ap,long long); goto fmt_valid; } goto fmt_invalid; } /* Size: long */ if (_p[0] == 'l') { _p += 1; if (*_p != '\0' && strchr(intfmts,*_p) != NULL) { va_arg(ap,long); goto fmt_valid; } goto fmt_invalid; } fmt_invalid: va_end(_cpy); goto err; fmt_valid: _l = (_p+1)-c; if (_l < sizeof(_format)-2) { memcpy(_format,c,_l); _format[_l] = '\0'; newarg = sdscatvprintf(curarg,_format,_cpy); /* Update current position (note: outer blocks * increment c twice so compensate here) */ c = _p-1; } va_end(_cpy); break; } } if (newarg == NULL) goto err; curarg = newarg; touched = 1; c++; } c++; } /* Add the last argument if needed */ if (touched) { newargv = realloc(curargv,sizeof(char*)*(argc+1)); if (newargv == NULL) goto err; curargv = newargv; curargv[argc++] = curarg; totlen += bulklen(sdslen(curarg)); } else { sdsfree(curarg); } /* Clear curarg because it was put in curargv or was free'd. */ curarg = NULL; /* Add bytes needed to hold multi bulk count */ totlen += 1+intlen(argc)+2; /* Build the command at protocol level */ cmd = malloc(totlen+1); if (cmd == NULL) goto err; pos = sprintf(cmd,"*%d\r\n",argc); for (j = 0; j < argc; j++) { pos += sprintf(cmd+pos,"$%zu\r\n",sdslen(curargv[j])); memcpy(cmd+pos,curargv[j],sdslen(curargv[j])); pos += sdslen(curargv[j]); sdsfree(curargv[j]); cmd[pos++] = '\r'; cmd[pos++] = '\n'; } assert(pos == totlen); cmd[pos] = '\0'; free(curargv); *target = cmd; return totlen; err: while(argc--) sdsfree(curargv[argc]); free(curargv); if (curarg != NULL) sdsfree(curarg); /* No need to check cmd since it is the last statement that can fail, * but do it anyway to be as defensive as possible. */ if (cmd != NULL) free(cmd); return -1; } /* Format a command according to the Redis protocol. This function * takes a format similar to printf: * * %s represents a C null terminated string you want to interpolate * %b represents a binary safe string * * When using %b you need to provide both the pointer to the string * and the length in bytes. Examples: * * len = redisFormatCommand(target, "GET %s", mykey); * len = redisFormatCommand(target, "SET %s %b", mykey, myval, myvallen); */ int redisFormatCommand(char **target, const char *format, ...) { va_list ap; int len; va_start(ap,format); len = redisvFormatCommand(target,format,ap); va_end(ap); return len; } /* Format a command according to the Redis protocol. This function takes the * number of arguments, an array with arguments and an array with their * lengths. If the latter is set to NULL, strlen will be used to compute the * argument lengths. */ int redisFormatCommandArgv(char **target, int argc, const char **argv, const size_t *argvlen) { char *cmd = NULL; /* final command */ int pos; /* position in final command */ size_t len; int totlen, j; /* Calculate number of bytes needed for the command */ totlen = 1+intlen(argc)+2; for (j = 0; j < argc; j++) { len = argvlen ? argvlen[j] : strlen(argv[j]); totlen += bulklen(len); } /* Build the command at protocol level */ cmd = malloc(totlen+1); if (cmd == NULL) return -1; pos = sprintf(cmd,"*%d\r\n",argc); for (j = 0; j < argc; j++) { len = argvlen ? argvlen[j] : strlen(argv[j]); pos += sprintf(cmd+pos,"$%zu\r\n",len); memcpy(cmd+pos,argv[j],len); pos += len; cmd[pos++] = '\r'; cmd[pos++] = '\n'; } assert(pos == totlen); cmd[pos] = '\0'; *target = cmd; return totlen; } void __redisSetError(redisContext *c, int type, const char *str) { size_t len; c->err = type; if (str != NULL) { len = strlen(str); len = len < (sizeof(c->errstr)-1) ? len : (sizeof(c->errstr)-1); memcpy(c->errstr,str,len); c->errstr[len] = '\0'; } else { /* Only REDIS_ERR_IO may lack a description! */ assert(type == REDIS_ERR_IO); strerror_r(errno,c->errstr,sizeof(c->errstr)); } } static redisContext *redisContextInit(void) { redisContext *c; c = calloc(1,sizeof(redisContext)); if (c == NULL) return NULL; c->err = 0; c->errstr[0] = '\0'; c->obuf = sdsempty(); c->reader = redisReaderCreate(); return c; } void redisFree(redisContext *c) { if (c->fd > 0) close(c->fd); if (c->obuf != NULL) sdsfree(c->obuf); if (c->reader != NULL) redisReaderFree(c->reader); free(c); } /* Connect to a Redis instance. On error the field error in the returned * context will be set to the return value of the error function. * When no set of reply functions is given, the default set will be used. */ redisContext *redisConnect(const char *ip, int port) { redisContext *c = redisContextInit(); c->flags |= REDIS_BLOCK; redisContextConnectTcp(c,ip,port,NULL); return c; } redisContext *redisConnectWithTimeout(const char *ip, int port, struct timeval tv) { redisContext *c = redisContextInit(); c->flags |= REDIS_BLOCK; redisContextConnectTcp(c,ip,port,&tv); return c; } redisContext *redisConnectNonBlock(const char *ip, int port) { redisContext *c = redisContextInit(); c->flags &= ~REDIS_BLOCK; redisContextConnectTcp(c,ip,port,NULL); return c; } redisContext *redisConnectUnix(const char *path) { redisContext *c = redisContextInit(); c->flags |= REDIS_BLOCK; redisContextConnectUnix(c,path,NULL); return c; } redisContext *redisConnectUnixWithTimeout(const char *path, struct timeval tv) { redisContext *c = redisContextInit(); c->flags |= REDIS_BLOCK; redisContextConnectUnix(c,path,&tv); return c; } redisContext *redisConnectUnixNonBlock(const char *path) { redisContext *c = redisContextInit(); c->flags &= ~REDIS_BLOCK; redisContextConnectUnix(c,path,NULL); return c; } /* Set read/write timeout on a blocking socket. */ int redisSetTimeout(redisContext *c, struct timeval tv) { if (c->flags & REDIS_BLOCK) return redisContextSetTimeout(c,tv); return REDIS_ERR; } /* Use this function to handle a read event on the descriptor. It will try * and read some bytes from the socket and feed them to the reply parser. * * After this function is called, you may use redisContextReadReply to * see if there is a reply available. */ int redisBufferRead(redisContext *c) { char buf[1024*16]; int nread; /* Return early when the context has seen an error. */ if (c->err) return REDIS_ERR; nread = read(c->fd,buf,sizeof(buf)); if (nread == -1) { if (errno == EAGAIN && !(c->flags & REDIS_BLOCK)) { /* Try again later */ } else { __redisSetError(c,REDIS_ERR_IO,NULL); return REDIS_ERR; } } else if (nread == 0) { __redisSetError(c,REDIS_ERR_EOF,"Server closed the connection"); return REDIS_ERR; } else { if (redisReaderFeed(c->reader,buf,nread) != REDIS_OK) { __redisSetError(c,c->reader->err,c->reader->errstr); return REDIS_ERR; } } return REDIS_OK; } /* Write the output buffer to the socket. * * Returns REDIS_OK when the buffer is empty, or (a part of) the buffer was * succesfully written to the socket. When the buffer is empty after the * write operation, "done" is set to 1 (if given). * * Returns REDIS_ERR if an error occured trying to write and sets * c->errstr to hold the appropriate error string. */ int redisBufferWrite(redisContext *c, int *done) { int nwritten; /* Return early when the context has seen an error. */ if (c->err) return REDIS_ERR; if (sdslen(c->obuf) > 0) { nwritten = write(c->fd,c->obuf,sdslen(c->obuf)); if (nwritten == -1) { if (errno == EAGAIN && !(c->flags & REDIS_BLOCK)) { /* Try again later */ } else { __redisSetError(c,REDIS_ERR_IO,NULL); return REDIS_ERR; } } else if (nwritten > 0) { if (nwritten == (signed)sdslen(c->obuf)) { sdsfree(c->obuf); c->obuf = sdsempty(); } else { c->obuf = sdsrange(c->obuf,nwritten,-1); } } } if (done != NULL) *done = (sdslen(c->obuf) == 0); return REDIS_OK; } /* Internal helper function to try and get a reply from the reader, * or set an error in the context otherwise. */ int redisGetReplyFromReader(redisContext *c, void **reply) { if (redisReaderGetReply(c->reader,reply) == REDIS_ERR) { __redisSetError(c,c->reader->err,c->reader->errstr); return REDIS_ERR; } return REDIS_OK; } int redisGetReply(redisContext *c, void **reply) { int wdone = 0; void *aux = NULL; /* Try to read pending replies */ if (redisGetReplyFromReader(c,&aux) == REDIS_ERR) return REDIS_ERR; /* For the blocking context, flush output buffer and read reply */ if (aux == NULL && c->flags & REDIS_BLOCK) { /* Write until done */ do { if (redisBufferWrite(c,&wdone) == REDIS_ERR) return REDIS_ERR; } while (!wdone); /* Read until there is a reply */ do { if (redisBufferRead(c) == REDIS_ERR) return REDIS_ERR; if (redisGetReplyFromReader(c,&aux) == REDIS_ERR) return REDIS_ERR; } while (aux == NULL); } /* Set reply object */ if (reply != NULL) *reply = aux; return REDIS_OK; } /* Helper function for the redisAppendCommand* family of functions. * * Write a formatted command to the output buffer. When this family * is used, you need to call redisGetReply yourself to retrieve * the reply (or replies in pub/sub). */ int __redisAppendCommand(redisContext *c, char *cmd, size_t len) { sds newbuf; newbuf = sdscatlen(c->obuf,cmd,len); if (newbuf == NULL) { __redisSetError(c,REDIS_ERR_OOM,"Out of memory"); return REDIS_ERR; } c->obuf = newbuf; return REDIS_OK; } int redisvAppendCommand(redisContext *c, const char *format, va_list ap) { char *cmd; int len; len = redisvFormatCommand(&cmd,format,ap); if (len == -1) { __redisSetError(c,REDIS_ERR_OOM,"Out of memory"); return REDIS_ERR; } if (__redisAppendCommand(c,cmd,len) != REDIS_OK) { free(cmd); return REDIS_ERR; } free(cmd); return REDIS_OK; } int redisAppendCommand(redisContext *c, const char *format, ...) { va_list ap; int ret; va_start(ap,format); ret = redisvAppendCommand(c,format,ap); va_end(ap); return ret; } int redisAppendCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen) { char *cmd; int len; len = redisFormatCommandArgv(&cmd,argc,argv,argvlen); if (len == -1) { __redisSetError(c,REDIS_ERR_OOM,"Out of memory"); return REDIS_ERR; } if (__redisAppendCommand(c,cmd,len) != REDIS_OK) { free(cmd); return REDIS_ERR; } free(cmd); return REDIS_OK; } /* Helper function for the redisCommand* family of functions. * * Write a formatted command to the output buffer. If the given context is * blocking, immediately read the reply into the "reply" pointer. When the * context is non-blocking, the "reply" pointer will not be used and the * command is simply appended to the write buffer. * * Returns the reply when a reply was succesfully retrieved. Returns NULL * otherwise. When NULL is returned in a blocking context, the error field * in the context will be set. */ static void *__redisBlockForReply(redisContext *c) { void *reply; if (c->flags & REDIS_BLOCK) { if (redisGetReply(c,&reply) != REDIS_OK) return NULL; return reply; } return NULL; } void *redisvCommand(redisContext *c, const char *format, va_list ap) { if (redisvAppendCommand(c,format,ap) != REDIS_OK) return NULL; return __redisBlockForReply(c); } void *redisCommand(redisContext *c, const char *format, ...) { va_list ap; void *reply = NULL; va_start(ap,format); reply = redisvCommand(c,format,ap); va_end(ap); return reply; } void *redisCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen) { if (redisAppendCommandArgv(c,argc,argv,argvlen) != REDIS_OK) return NULL; return __redisBlockForReply(c); } redis-2.6.16/deps/hiredis/hiredis.h000066400000000000000000000213271220734223100170770ustar00rootroot00000000000000/* * Copyright (c) 2009-2011, Salvatore Sanfilippo * Copyright (c) 2010-2011, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __HIREDIS_H #define __HIREDIS_H #include /* for size_t */ #include /* for va_list */ #include /* for struct timeval */ #define HIREDIS_MAJOR 0 #define HIREDIS_MINOR 10 #define HIREDIS_PATCH 1 #define REDIS_ERR -1 #define REDIS_OK 0 /* When an error occurs, the err flag in a context is set to hold the type of * error that occured. REDIS_ERR_IO means there was an I/O error and you * should use the "errno" variable to find out what is wrong. * For other values, the "errstr" field will hold a description. */ #define REDIS_ERR_IO 1 /* Error in read or write */ #define REDIS_ERR_EOF 3 /* End of file */ #define REDIS_ERR_PROTOCOL 4 /* Protocol error */ #define REDIS_ERR_OOM 5 /* Out of memory */ #define REDIS_ERR_OTHER 2 /* Everything else... */ /* Connection type can be blocking or non-blocking and is set in the * least significant bit of the flags field in redisContext. */ #define REDIS_BLOCK 0x1 /* Connection may be disconnected before being free'd. The second bit * in the flags field is set when the context is connected. */ #define REDIS_CONNECTED 0x2 /* The async API might try to disconnect cleanly and flush the output * buffer and read all subsequent replies before disconnecting. * This flag means no new commands can come in and the connection * should be terminated once all replies have been read. */ #define REDIS_DISCONNECTING 0x4 /* Flag specific to the async API which means that the context should be clean * up as soon as possible. */ #define REDIS_FREEING 0x8 /* Flag that is set when an async callback is executed. */ #define REDIS_IN_CALLBACK 0x10 /* Flag that is set when the async context has one or more subscriptions. */ #define REDIS_SUBSCRIBED 0x20 /* Flag that is set when monitor mode is active */ #define REDIS_MONITORING 0x40 #define REDIS_REPLY_STRING 1 #define REDIS_REPLY_ARRAY 2 #define REDIS_REPLY_INTEGER 3 #define REDIS_REPLY_NIL 4 #define REDIS_REPLY_STATUS 5 #define REDIS_REPLY_ERROR 6 #define REDIS_READER_MAX_BUF (1024*16) /* Default max unused reader buffer. */ #ifdef __cplusplus extern "C" { #endif /* This is the reply object returned by redisCommand() */ typedef struct redisReply { int type; /* REDIS_REPLY_* */ long long integer; /* The integer when type is REDIS_REPLY_INTEGER */ int len; /* Length of string */ char *str; /* Used for both REDIS_REPLY_ERROR and REDIS_REPLY_STRING */ size_t elements; /* number of elements, for REDIS_REPLY_ARRAY */ struct redisReply **element; /* elements vector for REDIS_REPLY_ARRAY */ } redisReply; typedef struct redisReadTask { int type; int elements; /* number of elements in multibulk container */ int idx; /* index in parent (array) object */ void *obj; /* holds user-generated value for a read task */ struct redisReadTask *parent; /* parent task */ void *privdata; /* user-settable arbitrary field */ } redisReadTask; typedef struct redisReplyObjectFunctions { void *(*createString)(const redisReadTask*, char*, size_t); void *(*createArray)(const redisReadTask*, int); void *(*createInteger)(const redisReadTask*, long long); void *(*createNil)(const redisReadTask*); void (*freeObject)(void*); } redisReplyObjectFunctions; /* State for the protocol parser */ typedef struct redisReader { int err; /* Error flags, 0 when there is no error */ char errstr[128]; /* String representation of error when applicable */ char *buf; /* Read buffer */ size_t pos; /* Buffer cursor */ size_t len; /* Buffer length */ size_t maxbuf; /* Max length of unused buffer */ redisReadTask rstack[9]; int ridx; /* Index of current read task */ void *reply; /* Temporary reply pointer */ redisReplyObjectFunctions *fn; void *privdata; } redisReader; /* Public API for the protocol parser. */ redisReader *redisReaderCreate(void); void redisReaderFree(redisReader *r); int redisReaderFeed(redisReader *r, const char *buf, size_t len); int redisReaderGetReply(redisReader *r, void **reply); /* Backwards compatibility, can be removed on big version bump. */ #define redisReplyReaderCreate redisReaderCreate #define redisReplyReaderFree redisReaderFree #define redisReplyReaderFeed redisReaderFeed #define redisReplyReaderGetReply redisReaderGetReply #define redisReplyReaderSetPrivdata(_r, _p) (int)(((redisReader*)(_r))->privdata = (_p)) #define redisReplyReaderGetObject(_r) (((redisReader*)(_r))->reply) #define redisReplyReaderGetError(_r) (((redisReader*)(_r))->errstr) /* Function to free the reply objects hiredis returns by default. */ void freeReplyObject(void *reply); /* Functions to format a command according to the protocol. */ int redisvFormatCommand(char **target, const char *format, va_list ap); int redisFormatCommand(char **target, const char *format, ...); int redisFormatCommandArgv(char **target, int argc, const char **argv, const size_t *argvlen); /* Context for a connection to Redis */ typedef struct redisContext { int err; /* Error flags, 0 when there is no error */ char errstr[128]; /* String representation of error when applicable */ int fd; int flags; char *obuf; /* Write buffer */ redisReader *reader; /* Protocol reader */ } redisContext; redisContext *redisConnect(const char *ip, int port); redisContext *redisConnectWithTimeout(const char *ip, int port, struct timeval tv); redisContext *redisConnectNonBlock(const char *ip, int port); redisContext *redisConnectUnix(const char *path); redisContext *redisConnectUnixWithTimeout(const char *path, struct timeval tv); redisContext *redisConnectUnixNonBlock(const char *path); int redisSetTimeout(redisContext *c, struct timeval tv); void redisFree(redisContext *c); int redisBufferRead(redisContext *c); int redisBufferWrite(redisContext *c, int *done); /* In a blocking context, this function first checks if there are unconsumed * replies to return and returns one if so. Otherwise, it flushes the output * buffer to the socket and reads until it has a reply. In a non-blocking * context, it will return unconsumed replies until there are no more. */ int redisGetReply(redisContext *c, void **reply); int redisGetReplyFromReader(redisContext *c, void **reply); /* Write a command to the output buffer. Use these functions in blocking mode * to get a pipeline of commands. */ int redisvAppendCommand(redisContext *c, const char *format, va_list ap); int redisAppendCommand(redisContext *c, const char *format, ...); int redisAppendCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen); /* Issue a command to Redis. In a blocking context, it is identical to calling * redisAppendCommand, followed by redisGetReply. The function will return * NULL if there was an error in performing the request, otherwise it will * return the reply. In a non-blocking context, it is identical to calling * only redisAppendCommand and will always return NULL. */ void *redisvCommand(redisContext *c, const char *format, va_list ap); void *redisCommand(redisContext *c, const char *format, ...); void *redisCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen); #ifdef __cplusplus } #endif #endif redis-2.6.16/deps/hiredis/net.c000066400000000000000000000213031220734223100162230ustar00rootroot00000000000000/* Extracted from anet.c to work properly with Hiredis error reporting. * * Copyright (c) 2006-2011, Salvatore Sanfilippo * Copyright (c) 2010-2011, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "fmacros.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "net.h" #include "sds.h" /* Defined in hiredis.c */ void __redisSetError(redisContext *c, int type, const char *str); static void __redisSetErrorFromErrno(redisContext *c, int type, const char *prefix) { char buf[128]; size_t len = 0; if (prefix != NULL) len = snprintf(buf,sizeof(buf),"%s: ",prefix); strerror_r(errno,buf+len,sizeof(buf)-len); __redisSetError(c,type,buf); } static int redisSetReuseAddr(redisContext *c, int fd) { int on = 1; if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) == -1) { __redisSetErrorFromErrno(c,REDIS_ERR_IO,NULL); close(fd); return REDIS_ERR; } return REDIS_OK; } static int redisCreateSocket(redisContext *c, int type) { int s; if ((s = socket(type, SOCK_STREAM, 0)) == -1) { __redisSetErrorFromErrno(c,REDIS_ERR_IO,NULL); return REDIS_ERR; } if (type == AF_INET) { if (redisSetReuseAddr(c,s) == REDIS_ERR) { return REDIS_ERR; } } return s; } static int redisSetBlocking(redisContext *c, int fd, int blocking) { int flags; /* Set the socket nonblocking. * Note that fcntl(2) for F_GETFL and F_SETFL can't be * interrupted by a signal. */ if ((flags = fcntl(fd, F_GETFL)) == -1) { __redisSetErrorFromErrno(c,REDIS_ERR_IO,"fcntl(F_GETFL)"); close(fd); return REDIS_ERR; } if (blocking) flags &= ~O_NONBLOCK; else flags |= O_NONBLOCK; if (fcntl(fd, F_SETFL, flags) == -1) { __redisSetErrorFromErrno(c,REDIS_ERR_IO,"fcntl(F_SETFL)"); close(fd); return REDIS_ERR; } return REDIS_OK; } static int redisSetTcpNoDelay(redisContext *c, int fd) { int yes = 1; if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &yes, sizeof(yes)) == -1) { __redisSetErrorFromErrno(c,REDIS_ERR_IO,"setsockopt(TCP_NODELAY)"); close(fd); return REDIS_ERR; } return REDIS_OK; } #define __MAX_MSEC (((LONG_MAX) - 999) / 1000) static int redisContextWaitReady(redisContext *c, int fd, const struct timeval *timeout) { struct pollfd wfd[1]; long msec; msec = -1; wfd[0].fd = fd; wfd[0].events = POLLOUT; /* Only use timeout when not NULL. */ if (timeout != NULL) { if (timeout->tv_usec > 1000000 || timeout->tv_sec > __MAX_MSEC) { close(fd); return REDIS_ERR; } msec = (timeout->tv_sec * 1000) + ((timeout->tv_usec + 999) / 1000); if (msec < 0 || msec > INT_MAX) { msec = INT_MAX; } } if (errno == EINPROGRESS) { int res; if ((res = poll(wfd, 1, msec)) == -1) { __redisSetErrorFromErrno(c, REDIS_ERR_IO, "poll(2)"); close(fd); return REDIS_ERR; } else if (res == 0) { errno = ETIMEDOUT; __redisSetErrorFromErrno(c,REDIS_ERR_IO,NULL); close(fd); return REDIS_ERR; } if (redisCheckSocketError(c, fd) != REDIS_OK) return REDIS_ERR; return REDIS_OK; } __redisSetErrorFromErrno(c,REDIS_ERR_IO,NULL); close(fd); return REDIS_ERR; } int redisCheckSocketError(redisContext *c, int fd) { int err = 0; socklen_t errlen = sizeof(err); if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &err, &errlen) == -1) { __redisSetErrorFromErrno(c,REDIS_ERR_IO,"getsockopt(SO_ERROR)"); close(fd); return REDIS_ERR; } if (err) { errno = err; __redisSetErrorFromErrno(c,REDIS_ERR_IO,NULL); close(fd); return REDIS_ERR; } return REDIS_OK; } int redisContextSetTimeout(redisContext *c, struct timeval tv) { if (setsockopt(c->fd,SOL_SOCKET,SO_RCVTIMEO,&tv,sizeof(tv)) == -1) { __redisSetErrorFromErrno(c,REDIS_ERR_IO,"setsockopt(SO_RCVTIMEO)"); return REDIS_ERR; } if (setsockopt(c->fd,SOL_SOCKET,SO_SNDTIMEO,&tv,sizeof(tv)) == -1) { __redisSetErrorFromErrno(c,REDIS_ERR_IO,"setsockopt(SO_SNDTIMEO)"); return REDIS_ERR; } return REDIS_OK; } int redisContextConnectTcp(redisContext *c, const char *addr, int port, struct timeval *timeout) { int s, rv; char _port[6]; /* strlen("65535"); */ struct addrinfo hints, *servinfo, *p; int blocking = (c->flags & REDIS_BLOCK); snprintf(_port, 6, "%d", port); memset(&hints,0,sizeof(hints)); hints.ai_family = AF_INET; hints.ai_socktype = SOCK_STREAM; if ((rv = getaddrinfo(addr,_port,&hints,&servinfo)) != 0) { __redisSetError(c,REDIS_ERR_OTHER,gai_strerror(rv)); return REDIS_ERR; } for (p = servinfo; p != NULL; p = p->ai_next) { if ((s = socket(p->ai_family,p->ai_socktype,p->ai_protocol)) == -1) continue; if (redisSetBlocking(c,s,0) != REDIS_OK) goto error; if (connect(s,p->ai_addr,p->ai_addrlen) == -1) { if (errno == EHOSTUNREACH) { close(s); continue; } else if (errno == EINPROGRESS && !blocking) { /* This is ok. */ } else { if (redisContextWaitReady(c,s,timeout) != REDIS_OK) goto error; } } if (blocking && redisSetBlocking(c,s,1) != REDIS_OK) goto error; if (redisSetTcpNoDelay(c,s) != REDIS_OK) goto error; c->fd = s; c->flags |= REDIS_CONNECTED; rv = REDIS_OK; goto end; } if (p == NULL) { char buf[128]; snprintf(buf,sizeof(buf),"Can't create socket: %s",strerror(errno)); __redisSetError(c,REDIS_ERR_OTHER,buf); goto error; } error: rv = REDIS_ERR; end: freeaddrinfo(servinfo); return rv; // Need to return REDIS_OK if alright } int redisContextConnectUnix(redisContext *c, const char *path, struct timeval *timeout) { int s; int blocking = (c->flags & REDIS_BLOCK); struct sockaddr_un sa; if ((s = redisCreateSocket(c,AF_LOCAL)) < 0) return REDIS_ERR; if (redisSetBlocking(c,s,0) != REDIS_OK) return REDIS_ERR; sa.sun_family = AF_LOCAL; strncpy(sa.sun_path,path,sizeof(sa.sun_path)-1); if (connect(s, (struct sockaddr*)&sa, sizeof(sa)) == -1) { if (errno == EINPROGRESS && !blocking) { /* This is ok. */ } else { if (redisContextWaitReady(c,s,timeout) != REDIS_OK) return REDIS_ERR; } } /* Reset socket to be blocking after connect(2). */ if (blocking && redisSetBlocking(c,s,1) != REDIS_OK) return REDIS_ERR; c->fd = s; c->flags |= REDIS_CONNECTED; return REDIS_OK; } redis-2.6.16/deps/hiredis/net.h000066400000000000000000000042041220734223100162310ustar00rootroot00000000000000/* Extracted from anet.c to work properly with Hiredis error reporting. * * Copyright (c) 2006-2011, Salvatore Sanfilippo * Copyright (c) 2010-2011, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __NET_H #define __NET_H #include "hiredis.h" #if defined(__sun) #define AF_LOCAL AF_UNIX #endif int redisCheckSocketError(redisContext *c, int fd); int redisContextSetTimeout(redisContext *c, struct timeval tv); int redisContextConnectTcp(redisContext *c, const char *addr, int port, struct timeval *timeout); int redisContextConnectUnix(redisContext *c, const char *path, struct timeval *timeout); #endif redis-2.6.16/deps/hiredis/sds.c000066400000000000000000000416351220734223100162400ustar00rootroot00000000000000/* SDSLib, A C dynamic strings library * * Copyright (c) 2006-2010, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include "sds.h" #ifdef SDS_ABORT_ON_OOM static void sdsOomAbort(void) { fprintf(stderr,"SDS: Out Of Memory (SDS_ABORT_ON_OOM defined)\n"); abort(); } #endif sds sdsnewlen(const void *init, size_t initlen) { struct sdshdr *sh; sh = malloc(sizeof(struct sdshdr)+initlen+1); #ifdef SDS_ABORT_ON_OOM if (sh == NULL) sdsOomAbort(); #else if (sh == NULL) return NULL; #endif sh->len = initlen; sh->free = 0; if (initlen) { if (init) memcpy(sh->buf, init, initlen); else memset(sh->buf,0,initlen); } sh->buf[initlen] = '\0'; return (char*)sh->buf; } sds sdsempty(void) { return sdsnewlen("",0); } sds sdsnew(const char *init) { size_t initlen = (init == NULL) ? 0 : strlen(init); return sdsnewlen(init, initlen); } sds sdsdup(const sds s) { return sdsnewlen(s, sdslen(s)); } void sdsfree(sds s) { if (s == NULL) return; free(s-sizeof(struct sdshdr)); } void sdsupdatelen(sds s) { struct sdshdr *sh = (void*) (s-(sizeof(struct sdshdr))); int reallen = strlen(s); sh->free += (sh->len-reallen); sh->len = reallen; } static sds sdsMakeRoomFor(sds s, size_t addlen) { struct sdshdr *sh, *newsh; size_t free = sdsavail(s); size_t len, newlen; if (free >= addlen) return s; len = sdslen(s); sh = (void*) (s-(sizeof(struct sdshdr))); newlen = (len+addlen)*2; newsh = realloc(sh, sizeof(struct sdshdr)+newlen+1); #ifdef SDS_ABORT_ON_OOM if (newsh == NULL) sdsOomAbort(); #else if (newsh == NULL) return NULL; #endif newsh->free = newlen - len; return newsh->buf; } /* Grow the sds to have the specified length. Bytes that were not part of * the original length of the sds will be set to zero. */ sds sdsgrowzero(sds s, size_t len) { struct sdshdr *sh = (void*)(s-(sizeof(struct sdshdr))); size_t totlen, curlen = sh->len; if (len <= curlen) return s; s = sdsMakeRoomFor(s,len-curlen); if (s == NULL) return NULL; /* Make sure added region doesn't contain garbage */ sh = (void*)(s-(sizeof(struct sdshdr))); memset(s+curlen,0,(len-curlen+1)); /* also set trailing \0 byte */ totlen = sh->len+sh->free; sh->len = len; sh->free = totlen-sh->len; return s; } sds sdscatlen(sds s, const void *t, size_t len) { struct sdshdr *sh; size_t curlen = sdslen(s); s = sdsMakeRoomFor(s,len); if (s == NULL) return NULL; sh = (void*) (s-(sizeof(struct sdshdr))); memcpy(s+curlen, t, len); sh->len = curlen+len; sh->free = sh->free-len; s[curlen+len] = '\0'; return s; } sds sdscat(sds s, const char *t) { return sdscatlen(s, t, strlen(t)); } sds sdscpylen(sds s, char *t, size_t len) { struct sdshdr *sh = (void*) (s-(sizeof(struct sdshdr))); size_t totlen = sh->free+sh->len; if (totlen < len) { s = sdsMakeRoomFor(s,len-sh->len); if (s == NULL) return NULL; sh = (void*) (s-(sizeof(struct sdshdr))); totlen = sh->free+sh->len; } memcpy(s, t, len); s[len] = '\0'; sh->len = len; sh->free = totlen-len; return s; } sds sdscpy(sds s, char *t) { return sdscpylen(s, t, strlen(t)); } sds sdscatvprintf(sds s, const char *fmt, va_list ap) { va_list cpy; char *buf, *t; size_t buflen = 16; while(1) { buf = malloc(buflen); #ifdef SDS_ABORT_ON_OOM if (buf == NULL) sdsOomAbort(); #else if (buf == NULL) return NULL; #endif buf[buflen-2] = '\0'; va_copy(cpy,ap); vsnprintf(buf, buflen, fmt, cpy); if (buf[buflen-2] != '\0') { free(buf); buflen *= 2; continue; } break; } t = sdscat(s, buf); free(buf); return t; } sds sdscatprintf(sds s, const char *fmt, ...) { va_list ap; char *t; va_start(ap, fmt); t = sdscatvprintf(s,fmt,ap); va_end(ap); return t; } sds sdstrim(sds s, const char *cset) { struct sdshdr *sh = (void*) (s-(sizeof(struct sdshdr))); char *start, *end, *sp, *ep; size_t len; sp = start = s; ep = end = s+sdslen(s)-1; while(sp <= end && strchr(cset, *sp)) sp++; while(ep > start && strchr(cset, *ep)) ep--; len = (sp > ep) ? 0 : ((ep-sp)+1); if (sh->buf != sp) memmove(sh->buf, sp, len); sh->buf[len] = '\0'; sh->free = sh->free+(sh->len-len); sh->len = len; return s; } sds sdsrange(sds s, int start, int end) { struct sdshdr *sh = (void*) (s-(sizeof(struct sdshdr))); size_t newlen, len = sdslen(s); if (len == 0) return s; if (start < 0) { start = len+start; if (start < 0) start = 0; } if (end < 0) { end = len+end; if (end < 0) end = 0; } newlen = (start > end) ? 0 : (end-start)+1; if (newlen != 0) { if (start >= (signed)len) { newlen = 0; } else if (end >= (signed)len) { end = len-1; newlen = (start > end) ? 0 : (end-start)+1; } } else { start = 0; } if (start && newlen) memmove(sh->buf, sh->buf+start, newlen); sh->buf[newlen] = 0; sh->free = sh->free+(sh->len-newlen); sh->len = newlen; return s; } void sdstolower(sds s) { int len = sdslen(s), j; for (j = 0; j < len; j++) s[j] = tolower(s[j]); } void sdstoupper(sds s) { int len = sdslen(s), j; for (j = 0; j < len; j++) s[j] = toupper(s[j]); } int sdscmp(sds s1, sds s2) { size_t l1, l2, minlen; int cmp; l1 = sdslen(s1); l2 = sdslen(s2); minlen = (l1 < l2) ? l1 : l2; cmp = memcmp(s1,s2,minlen); if (cmp == 0) return l1-l2; return cmp; } /* Split 's' with separator in 'sep'. An array * of sds strings is returned. *count will be set * by reference to the number of tokens returned. * * On out of memory, zero length string, zero length * separator, NULL is returned. * * Note that 'sep' is able to split a string using * a multi-character separator. For example * sdssplit("foo_-_bar","_-_"); will return two * elements "foo" and "bar". * * This version of the function is binary-safe but * requires length arguments. sdssplit() is just the * same function but for zero-terminated strings. */ sds *sdssplitlen(char *s, int len, char *sep, int seplen, int *count) { int elements = 0, slots = 5, start = 0, j; sds *tokens = malloc(sizeof(sds)*slots); #ifdef SDS_ABORT_ON_OOM if (tokens == NULL) sdsOomAbort(); #endif if (seplen < 1 || len < 0 || tokens == NULL) return NULL; if (len == 0) { *count = 0; return tokens; } for (j = 0; j < (len-(seplen-1)); j++) { /* make sure there is room for the next element and the final one */ if (slots < elements+2) { sds *newtokens; slots *= 2; newtokens = realloc(tokens,sizeof(sds)*slots); if (newtokens == NULL) { #ifdef SDS_ABORT_ON_OOM sdsOomAbort(); #else goto cleanup; #endif } tokens = newtokens; } /* search the separator */ if ((seplen == 1 && *(s+j) == sep[0]) || (memcmp(s+j,sep,seplen) == 0)) { tokens[elements] = sdsnewlen(s+start,j-start); if (tokens[elements] == NULL) { #ifdef SDS_ABORT_ON_OOM sdsOomAbort(); #else goto cleanup; #endif } elements++; start = j+seplen; j = j+seplen-1; /* skip the separator */ } } /* Add the final element. We are sure there is room in the tokens array. */ tokens[elements] = sdsnewlen(s+start,len-start); if (tokens[elements] == NULL) { #ifdef SDS_ABORT_ON_OOM sdsOomAbort(); #else goto cleanup; #endif } elements++; *count = elements; return tokens; #ifndef SDS_ABORT_ON_OOM cleanup: { int i; for (i = 0; i < elements; i++) sdsfree(tokens[i]); free(tokens); return NULL; } #endif } void sdsfreesplitres(sds *tokens, int count) { if (!tokens) return; while(count--) sdsfree(tokens[count]); free(tokens); } sds sdsfromlonglong(long long value) { char buf[32], *p; unsigned long long v; v = (value < 0) ? -value : value; p = buf+31; /* point to the last character */ do { *p-- = '0'+(v%10); v /= 10; } while(v); if (value < 0) *p-- = '-'; p++; return sdsnewlen(p,32-(p-buf)); } sds sdscatrepr(sds s, char *p, size_t len) { s = sdscatlen(s,"\"",1); if (s == NULL) return NULL; while(len--) { switch(*p) { case '\\': case '"': s = sdscatprintf(s,"\\%c",*p); break; case '\n': s = sdscatlen(s,"\\n",2); break; case '\r': s = sdscatlen(s,"\\r",2); break; case '\t': s = sdscatlen(s,"\\t",2); break; case '\a': s = sdscatlen(s,"\\a",2); break; case '\b': s = sdscatlen(s,"\\b",2); break; default: if (isprint(*p)) s = sdscatprintf(s,"%c",*p); else s = sdscatprintf(s,"\\x%02x",(unsigned char)*p); break; } p++; if (s == NULL) return NULL; } return sdscatlen(s,"\"",1); } /* Split a line into arguments, where every argument can be in the * following programming-language REPL-alike form: * * foo bar "newline are supported\n" and "\xff\x00otherstuff" * * The number of arguments is stored into *argc, and an array * of sds is returned. The caller should sdsfree() all the returned * strings and finally free() the array itself. * * Note that sdscatrepr() is able to convert back a string into * a quoted string in the same format sdssplitargs() is able to parse. */ sds *sdssplitargs(char *line, int *argc) { char *p = line; char *current = NULL; char **vector = NULL, **_vector = NULL; *argc = 0; while(1) { /* skip blanks */ while(*p && isspace(*p)) p++; if (*p) { /* get a token */ int inq=0; /* set to 1 if we are in "quotes" */ int done=0; if (current == NULL) { current = sdsempty(); if (current == NULL) goto err; } while(!done) { if (inq) { if (*p == '\\' && *(p+1)) { char c; p++; switch(*p) { case 'n': c = '\n'; break; case 'r': c = '\r'; break; case 't': c = '\t'; break; case 'b': c = '\b'; break; case 'a': c = '\a'; break; default: c = *p; break; } current = sdscatlen(current,&c,1); } else if (*p == '"') { /* closing quote must be followed by a space */ if (*(p+1) && !isspace(*(p+1))) goto err; done=1; } else if (!*p) { /* unterminated quotes */ goto err; } else { current = sdscatlen(current,p,1); } } else { switch(*p) { case ' ': case '\n': case '\r': case '\t': case '\0': done=1; break; case '"': inq=1; break; default: current = sdscatlen(current,p,1); break; } } if (*p) p++; if (current == NULL) goto err; } /* add the token to the vector */ _vector = realloc(vector,((*argc)+1)*sizeof(char*)); if (_vector == NULL) goto err; vector = _vector; vector[*argc] = current; (*argc)++; current = NULL; } else { return vector; } } err: while((*argc)--) sdsfree(vector[*argc]); if (vector != NULL) free(vector); if (current != NULL) sdsfree(current); return NULL; } #ifdef SDS_TEST_MAIN #include int __failed_tests = 0; int __test_num = 0; #define test_cond(descr,_c) do { \ __test_num++; printf("%d - %s: ", __test_num, descr); \ if(_c) printf("PASSED\n"); else {printf("FAILED\n"); __failed_tests++;} \ } while(0); #define test_report() do { \ printf("%d tests, %d passed, %d failed\n", __test_num, \ __test_num-__failed_tests, __failed_tests); \ if (__failed_tests) { \ printf("=== WARNING === We have failed tests here...\n"); \ } \ } while(0); int main(void) { { sds x = sdsnew("foo"), y; test_cond("Create a string and obtain the length", sdslen(x) == 3 && memcmp(x,"foo\0",4) == 0) sdsfree(x); x = sdsnewlen("foo",2); test_cond("Create a string with specified length", sdslen(x) == 2 && memcmp(x,"fo\0",3) == 0) x = sdscat(x,"bar"); test_cond("Strings concatenation", sdslen(x) == 5 && memcmp(x,"fobar\0",6) == 0); x = sdscpy(x,"a"); test_cond("sdscpy() against an originally longer string", sdslen(x) == 1 && memcmp(x,"a\0",2) == 0) x = sdscpy(x,"xyzxxxxxxxxxxyyyyyyyyyykkkkkkkkkk"); test_cond("sdscpy() against an originally shorter string", sdslen(x) == 33 && memcmp(x,"xyzxxxxxxxxxxyyyyyyyyyykkkkkkkkkk\0",33) == 0) sdsfree(x); x = sdscatprintf(sdsempty(),"%d",123); test_cond("sdscatprintf() seems working in the base case", sdslen(x) == 3 && memcmp(x,"123\0",4) ==0) sdsfree(x); x = sdstrim(sdsnew("xxciaoyyy"),"xy"); test_cond("sdstrim() correctly trims characters", sdslen(x) == 4 && memcmp(x,"ciao\0",5) == 0) y = sdsrange(sdsdup(x),1,1); test_cond("sdsrange(...,1,1)", sdslen(y) == 1 && memcmp(y,"i\0",2) == 0) sdsfree(y); y = sdsrange(sdsdup(x),1,-1); test_cond("sdsrange(...,1,-1)", sdslen(y) == 3 && memcmp(y,"iao\0",4) == 0) sdsfree(y); y = sdsrange(sdsdup(x),-2,-1); test_cond("sdsrange(...,-2,-1)", sdslen(y) == 2 && memcmp(y,"ao\0",3) == 0) sdsfree(y); y = sdsrange(sdsdup(x),2,1); test_cond("sdsrange(...,2,1)", sdslen(y) == 0 && memcmp(y,"\0",1) == 0) sdsfree(y); y = sdsrange(sdsdup(x),1,100); test_cond("sdsrange(...,1,100)", sdslen(y) == 3 && memcmp(y,"iao\0",4) == 0) sdsfree(y); y = sdsrange(sdsdup(x),100,100); test_cond("sdsrange(...,100,100)", sdslen(y) == 0 && memcmp(y,"\0",1) == 0) sdsfree(y); sdsfree(x); x = sdsnew("foo"); y = sdsnew("foa"); test_cond("sdscmp(foo,foa)", sdscmp(x,y) > 0) sdsfree(y); sdsfree(x); x = sdsnew("bar"); y = sdsnew("bar"); test_cond("sdscmp(bar,bar)", sdscmp(x,y) == 0) sdsfree(y); sdsfree(x); x = sdsnew("aar"); y = sdsnew("bar"); test_cond("sdscmp(bar,bar)", sdscmp(x,y) < 0) } test_report() } #endif redis-2.6.16/deps/hiredis/sds.h000066400000000000000000000060401220734223100162340ustar00rootroot00000000000000/* SDSLib, A C dynamic strings library * * Copyright (c) 2006-2010, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __SDS_H #define __SDS_H #include #include typedef char *sds; struct sdshdr { int len; int free; char buf[]; }; static inline size_t sdslen(const sds s) { struct sdshdr *sh = (void*)(s-(sizeof(struct sdshdr))); return sh->len; } static inline size_t sdsavail(const sds s) { struct sdshdr *sh = (void*)(s-(sizeof(struct sdshdr))); return sh->free; } sds sdsnewlen(const void *init, size_t initlen); sds sdsnew(const char *init); sds sdsempty(void); size_t sdslen(const sds s); sds sdsdup(const sds s); void sdsfree(sds s); size_t sdsavail(sds s); sds sdsgrowzero(sds s, size_t len); sds sdscatlen(sds s, const void *t, size_t len); sds sdscat(sds s, const char *t); sds sdscpylen(sds s, char *t, size_t len); sds sdscpy(sds s, char *t); sds sdscatvprintf(sds s, const char *fmt, va_list ap); #ifdef __GNUC__ sds sdscatprintf(sds s, const char *fmt, ...) __attribute__((format(printf, 2, 3))); #else sds sdscatprintf(sds s, const char *fmt, ...); #endif sds sdstrim(sds s, const char *cset); sds sdsrange(sds s, int start, int end); void sdsupdatelen(sds s); int sdscmp(sds s1, sds s2); sds *sdssplitlen(char *s, int len, char *sep, int seplen, int *count); void sdsfreesplitres(sds *tokens, int count); void sdstolower(sds s); void sdstoupper(sds s); sds sdsfromlonglong(long long value); sds sdscatrepr(sds s, char *p, size_t len); sds *sdssplitargs(char *line, int *argc); #endif redis-2.6.16/deps/hiredis/test.c000066400000000000000000000551571220734223100164320ustar00rootroot00000000000000#include "fmacros.h" #include #include #include #include #include #include #include #include #include #include "hiredis.h" enum connection_type { CONN_TCP, CONN_UNIX }; struct config { enum connection_type type; struct { const char *host; int port; } tcp; struct { const char *path; } unix; }; /* The following lines make up our testing "framework" :) */ static int tests = 0, fails = 0; #define test(_s) { printf("#%02d ", ++tests); printf(_s); } #define test_cond(_c) if(_c) printf("\033[0;32mPASSED\033[0;0m\n"); else {printf("\033[0;31mFAILED\033[0;0m\n"); fails++;} static long long usec(void) { struct timeval tv; gettimeofday(&tv,NULL); return (((long long)tv.tv_sec)*1000000)+tv.tv_usec; } static redisContext *select_database(redisContext *c) { redisReply *reply; /* Switch to DB 9 for testing, now that we know we can chat. */ reply = redisCommand(c,"SELECT 9"); assert(reply != NULL); freeReplyObject(reply); /* Make sure the DB is emtpy */ reply = redisCommand(c,"DBSIZE"); assert(reply != NULL); if (reply->type == REDIS_REPLY_INTEGER && reply->integer == 0) { /* Awesome, DB 9 is empty and we can continue. */ freeReplyObject(reply); } else { printf("Database #9 is not empty, test can not continue\n"); exit(1); } return c; } static void disconnect(redisContext *c) { redisReply *reply; /* Make sure we're on DB 9. */ reply = redisCommand(c,"SELECT 9"); assert(reply != NULL); freeReplyObject(reply); reply = redisCommand(c,"FLUSHDB"); assert(reply != NULL); freeReplyObject(reply); /* Free the context as well. */ redisFree(c); } static redisContext *connect(struct config config) { redisContext *c = NULL; if (config.type == CONN_TCP) { c = redisConnect(config.tcp.host, config.tcp.port); } else if (config.type == CONN_UNIX) { c = redisConnectUnix(config.unix.path); } else { assert(NULL); } if (c->err) { printf("Connection error: %s\n", c->errstr); exit(1); } return select_database(c); } static void test_format_commands(void) { char *cmd; int len; test("Format command without interpolation: "); len = redisFormatCommand(&cmd,"SET foo bar"); test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$3\r\nbar\r\n",len) == 0 && len == 4+4+(3+2)+4+(3+2)+4+(3+2)); free(cmd); test("Format command with %%s string interpolation: "); len = redisFormatCommand(&cmd,"SET %s %s","foo","bar"); test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$3\r\nbar\r\n",len) == 0 && len == 4+4+(3+2)+4+(3+2)+4+(3+2)); free(cmd); test("Format command with %%s and an empty string: "); len = redisFormatCommand(&cmd,"SET %s %s","foo",""); test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$0\r\n\r\n",len) == 0 && len == 4+4+(3+2)+4+(3+2)+4+(0+2)); free(cmd); test("Format command with an empty string in between proper interpolations: "); len = redisFormatCommand(&cmd,"SET %s %s","","foo"); test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$0\r\n\r\n$3\r\nfoo\r\n",len) == 0 && len == 4+4+(3+2)+4+(0+2)+4+(3+2)); free(cmd); test("Format command with %%b string interpolation: "); len = redisFormatCommand(&cmd,"SET %b %b","foo",3,"b\0r",3); test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$3\r\nb\0r\r\n",len) == 0 && len == 4+4+(3+2)+4+(3+2)+4+(3+2)); free(cmd); test("Format command with %%b and an empty string: "); len = redisFormatCommand(&cmd,"SET %b %b","foo",3,"",0); test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$0\r\n\r\n",len) == 0 && len == 4+4+(3+2)+4+(3+2)+4+(0+2)); free(cmd); test("Format command with literal %%: "); len = redisFormatCommand(&cmd,"SET %% %%"); test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$1\r\n%\r\n$1\r\n%\r\n",len) == 0 && len == 4+4+(3+2)+4+(1+2)+4+(1+2)); free(cmd); /* Vararg width depends on the type. These tests make sure that the * width is correctly determined using the format and subsequent varargs * can correctly be interpolated. */ #define INTEGER_WIDTH_TEST(fmt, type) do { \ type value = 123; \ test("Format command with printf-delegation (" #type "): "); \ len = redisFormatCommand(&cmd,"key:%08" fmt " str:%s", value, "hello"); \ test_cond(strncmp(cmd,"*2\r\n$12\r\nkey:00000123\r\n$9\r\nstr:hello\r\n",len) == 0 && \ len == 4+5+(12+2)+4+(9+2)); \ free(cmd); \ } while(0) #define FLOAT_WIDTH_TEST(type) do { \ type value = 123.0; \ test("Format command with printf-delegation (" #type "): "); \ len = redisFormatCommand(&cmd,"key:%08.3f str:%s", value, "hello"); \ test_cond(strncmp(cmd,"*2\r\n$12\r\nkey:0123.000\r\n$9\r\nstr:hello\r\n",len) == 0 && \ len == 4+5+(12+2)+4+(9+2)); \ free(cmd); \ } while(0) INTEGER_WIDTH_TEST("d", int); INTEGER_WIDTH_TEST("hhd", char); INTEGER_WIDTH_TEST("hd", short); INTEGER_WIDTH_TEST("ld", long); INTEGER_WIDTH_TEST("lld", long long); INTEGER_WIDTH_TEST("u", unsigned int); INTEGER_WIDTH_TEST("hhu", unsigned char); INTEGER_WIDTH_TEST("hu", unsigned short); INTEGER_WIDTH_TEST("lu", unsigned long); INTEGER_WIDTH_TEST("llu", unsigned long long); FLOAT_WIDTH_TEST(float); FLOAT_WIDTH_TEST(double); test("Format command with invalid printf format: "); len = redisFormatCommand(&cmd,"key:%08p %b",(void*)1234,"foo",3); test_cond(len == -1); const char *argv[3]; argv[0] = "SET"; argv[1] = "foo\0xxx"; argv[2] = "bar"; size_t lens[3] = { 3, 7, 3 }; int argc = 3; test("Format command by passing argc/argv without lengths: "); len = redisFormatCommandArgv(&cmd,argc,argv,NULL); test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$3\r\nbar\r\n",len) == 0 && len == 4+4+(3+2)+4+(3+2)+4+(3+2)); free(cmd); test("Format command by passing argc/argv with lengths: "); len = redisFormatCommandArgv(&cmd,argc,argv,lens); test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$7\r\nfoo\0xxx\r\n$3\r\nbar\r\n",len) == 0 && len == 4+4+(3+2)+4+(7+2)+4+(3+2)); free(cmd); } static void test_reply_reader(void) { redisReader *reader; void *reply; int ret; test("Error handling in reply parser: "); reader = redisReaderCreate(); redisReaderFeed(reader,(char*)"@foo\r\n",6); ret = redisReaderGetReply(reader,NULL); test_cond(ret == REDIS_ERR && strcasecmp(reader->errstr,"Protocol error, got \"@\" as reply type byte") == 0); redisReaderFree(reader); /* when the reply already contains multiple items, they must be free'd * on an error. valgrind will bark when this doesn't happen. */ test("Memory cleanup in reply parser: "); reader = redisReaderCreate(); redisReaderFeed(reader,(char*)"*2\r\n",4); redisReaderFeed(reader,(char*)"$5\r\nhello\r\n",11); redisReaderFeed(reader,(char*)"@foo\r\n",6); ret = redisReaderGetReply(reader,NULL); test_cond(ret == REDIS_ERR && strcasecmp(reader->errstr,"Protocol error, got \"@\" as reply type byte") == 0); redisReaderFree(reader); test("Set error on nested multi bulks with depth > 2: "); reader = redisReaderCreate(); redisReaderFeed(reader,(char*)"*1\r\n",4); redisReaderFeed(reader,(char*)"*1\r\n",4); redisReaderFeed(reader,(char*)"*1\r\n",4); redisReaderFeed(reader,(char*)"*1\r\n",4); ret = redisReaderGetReply(reader,NULL); test_cond(ret == REDIS_ERR && strncasecmp(reader->errstr,"No support for",14) == 0); redisReaderFree(reader); test("Works with NULL functions for reply: "); reader = redisReaderCreate(); reader->fn = NULL; redisReaderFeed(reader,(char*)"+OK\r\n",5); ret = redisReaderGetReply(reader,&reply); test_cond(ret == REDIS_OK && reply == (void*)REDIS_REPLY_STATUS); redisReaderFree(reader); test("Works when a single newline (\\r\\n) covers two calls to feed: "); reader = redisReaderCreate(); reader->fn = NULL; redisReaderFeed(reader,(char*)"+OK\r",4); ret = redisReaderGetReply(reader,&reply); assert(ret == REDIS_OK && reply == NULL); redisReaderFeed(reader,(char*)"\n",1); ret = redisReaderGetReply(reader,&reply); test_cond(ret == REDIS_OK && reply == (void*)REDIS_REPLY_STATUS); redisReaderFree(reader); test("Don't reset state after protocol error: "); reader = redisReaderCreate(); reader->fn = NULL; redisReaderFeed(reader,(char*)"x",1); ret = redisReaderGetReply(reader,&reply); assert(ret == REDIS_ERR); ret = redisReaderGetReply(reader,&reply); test_cond(ret == REDIS_ERR && reply == NULL); redisReaderFree(reader); /* Regression test for issue #45 on GitHub. */ test("Don't do empty allocation for empty multi bulk: "); reader = redisReaderCreate(); redisReaderFeed(reader,(char*)"*0\r\n",4); ret = redisReaderGetReply(reader,&reply); test_cond(ret == REDIS_OK && ((redisReply*)reply)->type == REDIS_REPLY_ARRAY && ((redisReply*)reply)->elements == 0); freeReplyObject(reply); redisReaderFree(reader); } static void test_blocking_connection_errors(void) { redisContext *c; test("Returns error when host cannot be resolved: "); c = redisConnect((char*)"idontexist.local", 6379); test_cond(c->err == REDIS_ERR_OTHER && (strcmp(c->errstr,"Name or service not known") == 0 || strcmp(c->errstr,"Can't resolve: idontexist.local") == 0)); redisFree(c); test("Returns error when the port is not open: "); c = redisConnect((char*)"localhost", 1); test_cond(c->err == REDIS_ERR_IO && strcmp(c->errstr,"Connection refused") == 0); redisFree(c); test("Returns error when the unix socket path doesn't accept connections: "); c = redisConnectUnix((char*)"/tmp/idontexist.sock"); test_cond(c->err == REDIS_ERR_IO); /* Don't care about the message... */ redisFree(c); } static void test_blocking_connection(struct config config) { redisContext *c; redisReply *reply; c = connect(config); test("Is able to deliver commands: "); reply = redisCommand(c,"PING"); test_cond(reply->type == REDIS_REPLY_STATUS && strcasecmp(reply->str,"pong") == 0) freeReplyObject(reply); test("Is a able to send commands verbatim: "); reply = redisCommand(c,"SET foo bar"); test_cond (reply->type == REDIS_REPLY_STATUS && strcasecmp(reply->str,"ok") == 0) freeReplyObject(reply); test("%%s String interpolation works: "); reply = redisCommand(c,"SET %s %s","foo","hello world"); freeReplyObject(reply); reply = redisCommand(c,"GET foo"); test_cond(reply->type == REDIS_REPLY_STRING && strcmp(reply->str,"hello world") == 0); freeReplyObject(reply); test("%%b String interpolation works: "); reply = redisCommand(c,"SET %b %b","foo",3,"hello\x00world",11); freeReplyObject(reply); reply = redisCommand(c,"GET foo"); test_cond(reply->type == REDIS_REPLY_STRING && memcmp(reply->str,"hello\x00world",11) == 0) test("Binary reply length is correct: "); test_cond(reply->len == 11) freeReplyObject(reply); test("Can parse nil replies: "); reply = redisCommand(c,"GET nokey"); test_cond(reply->type == REDIS_REPLY_NIL) freeReplyObject(reply); /* test 7 */ test("Can parse integer replies: "); reply = redisCommand(c,"INCR mycounter"); test_cond(reply->type == REDIS_REPLY_INTEGER && reply->integer == 1) freeReplyObject(reply); test("Can parse multi bulk replies: "); freeReplyObject(redisCommand(c,"LPUSH mylist foo")); freeReplyObject(redisCommand(c,"LPUSH mylist bar")); reply = redisCommand(c,"LRANGE mylist 0 -1"); test_cond(reply->type == REDIS_REPLY_ARRAY && reply->elements == 2 && !memcmp(reply->element[0]->str,"bar",3) && !memcmp(reply->element[1]->str,"foo",3)) freeReplyObject(reply); /* m/e with multi bulk reply *before* other reply. * specifically test ordering of reply items to parse. */ test("Can handle nested multi bulk replies: "); freeReplyObject(redisCommand(c,"MULTI")); freeReplyObject(redisCommand(c,"LRANGE mylist 0 -1")); freeReplyObject(redisCommand(c,"PING")); reply = (redisCommand(c,"EXEC")); test_cond(reply->type == REDIS_REPLY_ARRAY && reply->elements == 2 && reply->element[0]->type == REDIS_REPLY_ARRAY && reply->element[0]->elements == 2 && !memcmp(reply->element[0]->element[0]->str,"bar",3) && !memcmp(reply->element[0]->element[1]->str,"foo",3) && reply->element[1]->type == REDIS_REPLY_STATUS && strcasecmp(reply->element[1]->str,"pong") == 0); freeReplyObject(reply); disconnect(c); } static void test_blocking_io_errors(struct config config) { redisContext *c; redisReply *reply; void *_reply; int major, minor; /* Connect to target given by config. */ c = connect(config); { /* Find out Redis version to determine the path for the next test */ const char *field = "redis_version:"; char *p, *eptr; reply = redisCommand(c,"INFO"); p = strstr(reply->str,field); major = strtol(p+strlen(field),&eptr,10); p = eptr+1; /* char next to the first "." */ minor = strtol(p,&eptr,10); freeReplyObject(reply); } test("Returns I/O error when the connection is lost: "); reply = redisCommand(c,"QUIT"); if (major >= 2 && minor > 0) { /* > 2.0 returns OK on QUIT and read() should be issued once more * to know the descriptor is at EOF. */ test_cond(strcasecmp(reply->str,"OK") == 0 && redisGetReply(c,&_reply) == REDIS_ERR); freeReplyObject(reply); } else { test_cond(reply == NULL); } /* On 2.0, QUIT will cause the connection to be closed immediately and * the read(2) for the reply on QUIT will set the error to EOF. * On >2.0, QUIT will return with OK and another read(2) needed to be * issued to find out the socket was closed by the server. In both * conditions, the error will be set to EOF. */ assert(c->err == REDIS_ERR_EOF && strcmp(c->errstr,"Server closed the connection") == 0); redisFree(c); c = connect(config); test("Returns I/O error on socket timeout: "); struct timeval tv = { 0, 1000 }; assert(redisSetTimeout(c,tv) == REDIS_OK); test_cond(redisGetReply(c,&_reply) == REDIS_ERR && c->err == REDIS_ERR_IO && errno == EAGAIN); redisFree(c); } static void test_throughput(struct config config) { redisContext *c = connect(config); redisReply **replies; int i, num; long long t1, t2; test("Throughput:\n"); for (i = 0; i < 500; i++) freeReplyObject(redisCommand(c,"LPUSH mylist foo")); num = 1000; replies = malloc(sizeof(redisReply*)*num); t1 = usec(); for (i = 0; i < num; i++) { replies[i] = redisCommand(c,"PING"); assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_STATUS); } t2 = usec(); for (i = 0; i < num; i++) freeReplyObject(replies[i]); free(replies); printf("\t(%dx PING: %.3fs)\n", num, (t2-t1)/1000000.0); replies = malloc(sizeof(redisReply*)*num); t1 = usec(); for (i = 0; i < num; i++) { replies[i] = redisCommand(c,"LRANGE mylist 0 499"); assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_ARRAY); assert(replies[i] != NULL && replies[i]->elements == 500); } t2 = usec(); for (i = 0; i < num; i++) freeReplyObject(replies[i]); free(replies); printf("\t(%dx LRANGE with 500 elements: %.3fs)\n", num, (t2-t1)/1000000.0); num = 10000; replies = malloc(sizeof(redisReply*)*num); for (i = 0; i < num; i++) redisAppendCommand(c,"PING"); t1 = usec(); for (i = 0; i < num; i++) { assert(redisGetReply(c, (void*)&replies[i]) == REDIS_OK); assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_STATUS); } t2 = usec(); for (i = 0; i < num; i++) freeReplyObject(replies[i]); free(replies); printf("\t(%dx PING (pipelined): %.3fs)\n", num, (t2-t1)/1000000.0); replies = malloc(sizeof(redisReply*)*num); for (i = 0; i < num; i++) redisAppendCommand(c,"LRANGE mylist 0 499"); t1 = usec(); for (i = 0; i < num; i++) { assert(redisGetReply(c, (void*)&replies[i]) == REDIS_OK); assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_ARRAY); assert(replies[i] != NULL && replies[i]->elements == 500); } t2 = usec(); for (i = 0; i < num; i++) freeReplyObject(replies[i]); free(replies); printf("\t(%dx LRANGE with 500 elements (pipelined): %.3fs)\n", num, (t2-t1)/1000000.0); disconnect(c); } // static long __test_callback_flags = 0; // static void __test_callback(redisContext *c, void *privdata) { // ((void)c); // /* Shift to detect execution order */ // __test_callback_flags <<= 8; // __test_callback_flags |= (long)privdata; // } // // static void __test_reply_callback(redisContext *c, redisReply *reply, void *privdata) { // ((void)c); // /* Shift to detect execution order */ // __test_callback_flags <<= 8; // __test_callback_flags |= (long)privdata; // if (reply) freeReplyObject(reply); // } // // static redisContext *__connect_nonblock() { // /* Reset callback flags */ // __test_callback_flags = 0; // return redisConnectNonBlock("127.0.0.1", port, NULL); // } // // static void test_nonblocking_connection() { // redisContext *c; // int wdone = 0; // // test("Calls command callback when command is issued: "); // c = __connect_nonblock(); // redisSetCommandCallback(c,__test_callback,(void*)1); // redisCommand(c,"PING"); // test_cond(__test_callback_flags == 1); // redisFree(c); // // test("Calls disconnect callback on redisDisconnect: "); // c = __connect_nonblock(); // redisSetDisconnectCallback(c,__test_callback,(void*)2); // redisDisconnect(c); // test_cond(__test_callback_flags == 2); // redisFree(c); // // test("Calls disconnect callback and free callback on redisFree: "); // c = __connect_nonblock(); // redisSetDisconnectCallback(c,__test_callback,(void*)2); // redisSetFreeCallback(c,__test_callback,(void*)4); // redisFree(c); // test_cond(__test_callback_flags == ((2 << 8) | 4)); // // test("redisBufferWrite against empty write buffer: "); // c = __connect_nonblock(); // test_cond(redisBufferWrite(c,&wdone) == REDIS_OK && wdone == 1); // redisFree(c); // // test("redisBufferWrite against not yet connected fd: "); // c = __connect_nonblock(); // redisCommand(c,"PING"); // test_cond(redisBufferWrite(c,NULL) == REDIS_ERR && // strncmp(c->error,"write:",6) == 0); // redisFree(c); // // test("redisBufferWrite against closed fd: "); // c = __connect_nonblock(); // redisCommand(c,"PING"); // redisDisconnect(c); // test_cond(redisBufferWrite(c,NULL) == REDIS_ERR && // strncmp(c->error,"write:",6) == 0); // redisFree(c); // // test("Process callbacks in the right sequence: "); // c = __connect_nonblock(); // redisCommandWithCallback(c,__test_reply_callback,(void*)1,"PING"); // redisCommandWithCallback(c,__test_reply_callback,(void*)2,"PING"); // redisCommandWithCallback(c,__test_reply_callback,(void*)3,"PING"); // // /* Write output buffer */ // wdone = 0; // while(!wdone) { // usleep(500); // redisBufferWrite(c,&wdone); // } // // /* Read until at least one callback is executed (the 3 replies will // * arrive in a single packet, causing all callbacks to be executed in // * a single pass). */ // while(__test_callback_flags == 0) { // assert(redisBufferRead(c) == REDIS_OK); // redisProcessCallbacks(c); // } // test_cond(__test_callback_flags == 0x010203); // redisFree(c); // // test("redisDisconnect executes pending callbacks with NULL reply: "); // c = __connect_nonblock(); // redisSetDisconnectCallback(c,__test_callback,(void*)1); // redisCommandWithCallback(c,__test_reply_callback,(void*)2,"PING"); // redisDisconnect(c); // test_cond(__test_callback_flags == 0x0201); // redisFree(c); // } int main(int argc, char **argv) { struct config cfg = { .tcp = { .host = "127.0.0.1", .port = 6379 }, .unix = { .path = "/tmp/redis.sock" } }; int throughput = 1; /* Ignore broken pipe signal (for I/O error tests). */ signal(SIGPIPE, SIG_IGN); /* Parse command line options. */ argv++; argc--; while (argc) { if (argc >= 2 && !strcmp(argv[0],"-h")) { argv++; argc--; cfg.tcp.host = argv[0]; } else if (argc >= 2 && !strcmp(argv[0],"-p")) { argv++; argc--; cfg.tcp.port = atoi(argv[0]); } else if (argc >= 2 && !strcmp(argv[0],"-s")) { argv++; argc--; cfg.unix.path = argv[0]; } else if (argc >= 1 && !strcmp(argv[0],"--skip-throughput")) { throughput = 0; } else { fprintf(stderr, "Invalid argument: %s\n", argv[0]); exit(1); } argv++; argc--; } test_format_commands(); test_reply_reader(); test_blocking_connection_errors(); printf("\nTesting against TCP connection (%s:%d):\n", cfg.tcp.host, cfg.tcp.port); cfg.type = CONN_TCP; test_blocking_connection(cfg); test_blocking_io_errors(cfg); if (throughput) test_throughput(cfg); printf("\nTesting against Unix socket connection (%s):\n", cfg.unix.path); cfg.type = CONN_UNIX; test_blocking_connection(cfg); test_blocking_io_errors(cfg); if (throughput) test_throughput(cfg); if (fails) { printf("*** %d TESTS FAILED ***\n", fails); return 1; } printf("ALL TESTS PASSED\n"); return 0; } redis-2.6.16/deps/jemalloc/000077500000000000000000000000001220734223100154315ustar00rootroot00000000000000redis-2.6.16/deps/jemalloc/.gitignore000066400000000000000000000005651220734223100174270ustar00rootroot00000000000000/autom4te.cache/ /config.stamp /config.log /config.status /doc/html.xsl /doc/manpages.xsl /doc/jemalloc.xml /lib/ /Makefile /include/jemalloc/internal/jemalloc_internal\.h /include/jemalloc/internal/size_classes\.h /include/jemalloc/jemalloc\.h /include/jemalloc/jemalloc_defs\.h /src/*.[od] /test/*.[od] /test/*.out /test/[a-zA-Z_]* !test/*.c !test/*.exp /bin/jemalloc.sh redis-2.6.16/deps/jemalloc/COPYING000066400000000000000000000032471220734223100164720ustar00rootroot00000000000000Unless otherwise specified, files in the jemalloc source distribution are subject to the following license: -------------------------------------------------------------------------------- Copyright (C) 2002-2012 Jason Evans . All rights reserved. Copyright (C) 2007-2012 Mozilla Foundation. All rights reserved. Copyright (C) 2009-2012 Facebook, Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice(s), this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice(s), this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------- redis-2.6.16/deps/jemalloc/ChangeLog000066400000000000000000000377551220734223100172240ustar00rootroot00000000000000Following are change highlights associated with official releases. Important bug fixes are all mentioned, but internal enhancements are omitted here for brevity (even though they are more fun to write about). Much more detail can be found in the git revision history: http://www.canonware.com/cgi-bin/gitweb.cgi?p=jemalloc.git git://canonware.com/jemalloc.git * 3.2.0 (November 9, 2012) In addition to a couple of bug fixes, this version modifies page run allocation and dirty page purging algorithms in order to better control page-level virtual memory fragmentation. Incompatible changes: - Change the "opt.lg_dirty_mult" default from 5 to 3 (32:1 to 8:1). Bug fixes: - Fix dss/mmap allocation precedence code to use recyclable mmap memory only after primary dss allocation fails. - Fix deadlock in the "arenas.purge" mallctl. This regression was introduced in 3.1.0 by the addition of the "arena..purge" mallctl. * 3.1.0 (October 16, 2012) New features: - Auto-detect whether running inside Valgrind, thus removing the need to manually specify MALLOC_CONF=valgrind:true. - Add the "arenas.extend" mallctl, which allows applications to create manually managed arenas. - Add the ALLOCM_ARENA() flag for {,r,d}allocm(). - Add the "opt.dss", "arena..dss", and "stats.arenas..dss" mallctls, which provide control over dss/mmap precedence. - Add the "arena..purge" mallctl, which obsoletes "arenas.purge". - Define LG_QUANTUM for hppa. Incompatible changes: - Disable tcache by default if running inside Valgrind, in order to avoid making unallocated objects appear reachable to Valgrind. - Drop const from malloc_usable_size() argument on Linux. Bug fixes: - Fix heap profiling crash if sampled object is freed via realloc(p, 0). - Remove const from __*_hook variable declarations, so that glibc can modify them during process forking. - Fix mlockall(2)/madvise(2) interaction. - Fix fork(2)-related deadlocks. - Fix error return value for "thread.tcache.enabled" mallctl. * 3.0.0 (May 11, 2012) Although this version adds some major new features, the primary focus is on internal code cleanup that facilitates maintainability and portability, most of which is not reflected in the ChangeLog. This is the first release to incorporate substantial contributions from numerous other developers, and the result is a more broadly useful allocator (see the git revision history for contribution details). Note that the license has been unified, thanks to Facebook granting a license under the same terms as the other copyright holders (see COPYING). New features: - Implement Valgrind support, redzones, and quarantine. - Add support for additional platforms: + FreeBSD + Mac OS X Lion + MinGW + Windows (no support yet for replacing the system malloc) - Add support for additional architectures: + MIPS + SH4 + Tilera - Add support for cross compiling. - Add nallocm(), which rounds a request size up to the nearest size class without actually allocating. - Implement aligned_alloc() (blame C11). - Add the "thread.tcache.enabled" mallctl. - Add the "opt.prof_final" mallctl. - Update pprof (from gperftools 2.0). - Add the --with-mangling option. - Add the --disable-experimental option. - Add the --disable-munmap option, and make it the default on Linux. - Add the --enable-mremap option, which disables use of mremap(2) by default. Incompatible changes: - Enable stats by default. - Enable fill by default. - Disable lazy locking by default. - Rename the "tcache.flush" mallctl to "thread.tcache.flush". - Rename the "arenas.pagesize" mallctl to "arenas.page". - Change the "opt.lg_prof_sample" default from 0 to 19 (1 B to 512 KiB). - Change the "opt.prof_accum" default from true to false. Removed features: - Remove the swap feature, including the "config.swap", "swap.avail", "swap.prezeroed", "swap.nfds", and "swap.fds" mallctls. - Remove highruns statistics, including the "stats.arenas..bins..highruns" and "stats.arenas..lruns..highruns" mallctls. - As part of small size class refactoring, remove the "opt.lg_[qc]space_max", "arenas.cacheline", "arenas.subpage", "arenas.[tqcs]space_{min,max}", and "arenas.[tqcs]bins" mallctls. - Remove the "arenas.chunksize" mallctl. - Remove the "opt.lg_prof_tcmax" option. - Remove the "opt.lg_prof_bt_max" option. - Remove the "opt.lg_tcache_gc_sweep" option. - Remove the --disable-tiny option, including the "config.tiny" mallctl. - Remove the --enable-dynamic-page-shift configure option. - Remove the --enable-sysv configure option. Bug fixes: - Fix a statistics-related bug in the "thread.arena" mallctl that could cause invalid statistics and crashes. - Work around TLS deallocation via free() on Linux. This bug could cause write-after-free memory corruption. - Fix a potential deadlock that could occur during interval- and growth-triggered heap profile dumps. - Fix large calloc() zeroing bugs due to dropping chunk map unzeroed flags. - Fix chunk_alloc_dss() to stop claiming memory is zeroed. This bug could cause memory corruption and crashes with --enable-dss specified. - Fix fork-related bugs that could cause deadlock in children between fork and exec. - Fix malloc_stats_print() to honor 'b' and 'l' in the opts parameter. - Fix realloc(p, 0) to act like free(p). - Do not enforce minimum alignment in memalign(). - Check for NULL pointer in malloc_usable_size(). - Fix an off-by-one heap profile statistics bug that could be observed in interval- and growth-triggered heap profiles. - Fix the "epoch" mallctl to update cached stats even if the passed in epoch is 0. - Fix bin->runcur management to fix a layout policy bug. This bug did not affect correctness. - Fix a bug in choose_arena_hard() that potentially caused more arenas to be initialized than necessary. - Add missing "opt.lg_tcache_max" mallctl implementation. - Use glibc allocator hooks to make mixed allocator usage less likely. - Fix build issues for --disable-tcache. - Don't mangle pthread_create() when --with-private-namespace is specified. * 2.2.5 (November 14, 2011) Bug fixes: - Fix huge_ralloc() race when using mremap(2). This is a serious bug that could cause memory corruption and/or crashes. - Fix huge_ralloc() to maintain chunk statistics. - Fix malloc_stats_print(..., "a") output. * 2.2.4 (November 5, 2011) Bug fixes: - Initialize arenas_tsd before using it. This bug existed for 2.2.[0-3], as well as for --disable-tls builds in earlier releases. - Do not assume a 4 KiB page size in test/rallocm.c. * 2.2.3 (August 31, 2011) This version fixes numerous bugs related to heap profiling. Bug fixes: - Fix a prof-related race condition. This bug could cause memory corruption, but only occurred in non-default configurations (prof_accum:false). - Fix off-by-one backtracing issues (make sure that prof_alloc_prep() is excluded from backtraces). - Fix a prof-related bug in realloc() (only triggered by OOM errors). - Fix prof-related bugs in allocm() and rallocm(). - Fix prof_tdata_cleanup() for --disable-tls builds. - Fix a relative include path, to fix objdir builds. * 2.2.2 (July 30, 2011) Bug fixes: - Fix a build error for --disable-tcache. - Fix assertions in arena_purge() (for real this time). - Add the --with-private-namespace option. This is a workaround for symbol conflicts that can inadvertently arise when using static libraries. * 2.2.1 (March 30, 2011) Bug fixes: - Implement atomic operations for x86/x64. This fixes compilation failures for versions of gcc that are still in wide use. - Fix an assertion in arena_purge(). * 2.2.0 (March 22, 2011) This version incorporates several improvements to algorithms and data structures that tend to reduce fragmentation and increase speed. New features: - Add the "stats.cactive" mallctl. - Update pprof (from google-perftools 1.7). - Improve backtracing-related configuration logic, and add the --disable-prof-libgcc option. Bug fixes: - Change default symbol visibility from "internal", to "hidden", which decreases the overhead of library-internal function calls. - Fix symbol visibility so that it is also set on OS X. - Fix a build dependency regression caused by the introduction of the .pic.o suffix for PIC object files. - Add missing checks for mutex initialization failures. - Don't use libgcc-based backtracing except on x64, where it is known to work. - Fix deadlocks on OS X that were due to memory allocation in pthread_mutex_lock(). - Heap profiling-specific fixes: + Fix memory corruption due to integer overflow in small region index computation, when using a small enough sample interval that profiling context pointers are stored in small run headers. + Fix a bootstrap ordering bug that only occurred with TLS disabled. + Fix a rallocm() rsize bug. + Fix error detection bugs for aligned memory allocation. * 2.1.3 (March 14, 2011) Bug fixes: - Fix a cpp logic regression (due to the "thread.{de,}allocatedp" mallctl fix for OS X in 2.1.2). - Fix a "thread.arena" mallctl bug. - Fix a thread cache stats merging bug. * 2.1.2 (March 2, 2011) Bug fixes: - Fix "thread.{de,}allocatedp" mallctl for OS X. - Add missing jemalloc.a to build system. * 2.1.1 (January 31, 2011) Bug fixes: - Fix aligned huge reallocation (affected allocm()). - Fix the ALLOCM_LG_ALIGN macro definition. - Fix a heap dumping deadlock. - Fix a "thread.arena" mallctl bug. * 2.1.0 (December 3, 2010) This version incorporates some optimizations that can't quite be considered bug fixes. New features: - Use Linux's mremap(2) for huge object reallocation when possible. - Avoid locking in mallctl*() when possible. - Add the "thread.[de]allocatedp" mallctl's. - Convert the manual page source from roff to DocBook, and generate both roff and HTML manuals. Bug fixes: - Fix a crash due to incorrect bootstrap ordering. This only impacted --enable-debug --enable-dss configurations. - Fix a minor statistics bug for mallctl("swap.avail", ...). * 2.0.1 (October 29, 2010) Bug fixes: - Fix a race condition in heap profiling that could cause undefined behavior if "opt.prof_accum" were disabled. - Add missing mutex unlocks for some OOM error paths in the heap profiling code. - Fix a compilation error for non-C99 builds. * 2.0.0 (October 24, 2010) This version focuses on the experimental *allocm() API, and on improved run-time configuration/introspection. Nonetheless, numerous performance improvements are also included. New features: - Implement the experimental {,r,s,d}allocm() API, which provides a superset of the functionality available via malloc(), calloc(), posix_memalign(), realloc(), malloc_usable_size(), and free(). These functions can be used to allocate/reallocate aligned zeroed memory, ask for optional extra memory during reallocation, prevent object movement during reallocation, etc. - Replace JEMALLOC_OPTIONS/JEMALLOC_PROF_PREFIX with MALLOC_CONF, which is more human-readable, and more flexible. For example: JEMALLOC_OPTIONS=AJP is now: MALLOC_CONF=abort:true,fill:true,stats_print:true - Port to Apple OS X. Sponsored by Mozilla. - Make it possible for the application to control thread-->arena mappings via the "thread.arena" mallctl. - Add compile-time support for all TLS-related functionality via pthreads TSD. This is mainly of interest for OS X, which does not support TLS, but has a TSD implementation with similar performance. - Override memalign() and valloc() if they are provided by the system. - Add the "arenas.purge" mallctl, which can be used to synchronously purge all dirty unused pages. - Make cumulative heap profiling data optional, so that it is possible to limit the amount of memory consumed by heap profiling data structures. - Add per thread allocation counters that can be accessed via the "thread.allocated" and "thread.deallocated" mallctls. Incompatible changes: - Remove JEMALLOC_OPTIONS and malloc_options (see MALLOC_CONF above). - Increase default backtrace depth from 4 to 128 for heap profiling. - Disable interval-based profile dumps by default. Bug fixes: - Remove bad assertions in fork handler functions. These assertions could cause aborts for some combinations of configure settings. - Fix strerror_r() usage to deal with non-standard semantics in GNU libc. - Fix leak context reporting. This bug tended to cause the number of contexts to be underreported (though the reported number of objects and bytes were correct). - Fix a realloc() bug for large in-place growing reallocation. This bug could cause memory corruption, but it was hard to trigger. - Fix an allocation bug for small allocations that could be triggered if multiple threads raced to create a new run of backing pages. - Enhance the heap profiler to trigger samples based on usable size, rather than request size. - Fix a heap profiling bug due to sometimes losing track of requested object size for sampled objects. * 1.0.3 (August 12, 2010) Bug fixes: - Fix the libunwind-based implementation of stack backtracing (used for heap profiling). This bug could cause zero-length backtraces to be reported. - Add a missing mutex unlock in library initialization code. If multiple threads raced to initialize malloc, some of them could end up permanently blocked. * 1.0.2 (May 11, 2010) Bug fixes: - Fix junk filling of large objects, which could cause memory corruption. - Add MAP_NORESERVE support for chunk mapping, because otherwise virtual memory limits could cause swap file configuration to fail. Contributed by Jordan DeLong. * 1.0.1 (April 14, 2010) Bug fixes: - Fix compilation when --enable-fill is specified. - Fix threads-related profiling bugs that affected accuracy and caused memory to be leaked during thread exit. - Fix dirty page purging race conditions that could cause crashes. - Fix crash in tcache flushing code during thread destruction. * 1.0.0 (April 11, 2010) This release focuses on speed and run-time introspection. Numerous algorithmic improvements make this release substantially faster than its predecessors. New features: - Implement autoconf-based configuration system. - Add mallctl*(), for the purposes of introspection and run-time configuration. - Make it possible for the application to manually flush a thread's cache, via the "tcache.flush" mallctl. - Base maximum dirty page count on proportion of active memory. - Compute various addtional run-time statistics, including per size class statistics for large objects. - Expose malloc_stats_print(), which can be called repeatedly by the application. - Simplify the malloc_message() signature to only take one string argument, and incorporate an opaque data pointer argument for use by the application in combination with malloc_stats_print(). - Add support for allocation backed by one or more swap files, and allow the application to disable over-commit if swap files are in use. - Implement allocation profiling and leak checking. Removed features: - Remove the dynamic arena rebalancing code, since thread-specific caching reduces its utility. Bug fixes: - Modify chunk allocation to work when address space layout randomization (ASLR) is in use. - Fix thread cleanup bugs related to TLS destruction. - Handle 0-size allocation requests in posix_memalign(). - Fix a chunk leak. The leaked chunks were never touched, so this impacted virtual memory usage, but not physical memory usage. * linux_2008082[78]a (August 27/28, 2008) These snapshot releases are the simple result of incorporating Linux-specific support into the FreeBSD malloc sources. -------------------------------------------------------------------------------- vim:filetype=text:textwidth=80 redis-2.6.16/deps/jemalloc/INSTALL000066400000000000000000000233651220734223100164730ustar00rootroot00000000000000Building and installing jemalloc can be as simple as typing the following while in the root directory of the source tree: ./configure make make install === Advanced configuration ===================================================== The 'configure' script supports numerous options that allow control of which functionality is enabled, where jemalloc is installed, etc. Optionally, pass any of the following arguments (not a definitive list) to 'configure': --help Print a definitive list of options. --prefix= Set the base directory in which to install. For example: ./configure --prefix=/usr/local will cause files to be installed into /usr/local/include, /usr/local/lib, and /usr/local/man. --with-rpath= Embed one or more library paths, so that libjemalloc can find the libraries it is linked to. This works only on ELF-based systems. --with-mangling= Mangle public symbols specified in which is a comma-separated list of name:mangled pairs. For example, to use ld's --wrap option as an alternative method for overriding libc's malloc implementation, specify something like: --with-mangling=malloc:__wrap_malloc,free:__wrap_free[...] Note that mangling happens prior to application of the prefix specified by --with-jemalloc-prefix, and mangled symbols are then ignored when applying the prefix. --with-jemalloc-prefix= Prefix all public APIs with . For example, if is "prefix_", API changes like the following occur: malloc() --> prefix_malloc() malloc_conf --> prefix_malloc_conf /etc/malloc.conf --> /etc/prefix_malloc.conf MALLOC_CONF --> PREFIX_MALLOC_CONF This makes it possible to use jemalloc at the same time as the system allocator, or even to use multiple copies of jemalloc simultaneously. By default, the prefix is "", except on OS X, where it is "je_". On OS X, jemalloc overlays the default malloc zone, but makes no attempt to actually replace the "malloc", "calloc", etc. symbols. --with-private-namespace= Prefix all library-private APIs with . For shared libraries, symbol visibility mechanisms prevent these symbols from being exported, but for static libraries, naming collisions are a real possibility. By default, the prefix is "" (empty string). --with-install-suffix= Append to the base name of all installed files, such that multiple versions of jemalloc can coexist in the same installation directory. For example, libjemalloc.so.0 becomes libjemalloc.so.0. --enable-cc-silence Enable code that silences non-useful compiler warnings. This is helpful when trying to tell serious warnings from those due to compiler limitations, but it potentially incurs a performance penalty. --enable-debug Enable assertions and validation code. This incurs a substantial performance hit, but is very useful during application development. --disable-stats Disable statistics gathering functionality. See the "opt.stats_print" option documentation for usage details. --enable-prof Enable heap profiling and leak detection functionality. See the "opt.prof" option documentation for usage details. When enabled, there are several approaches to backtracing, and the configure script chooses the first one in the following list that appears to function correctly: + libunwind (requires --enable-prof-libunwind) + libgcc (unless --disable-prof-libgcc) + gcc intrinsics (unless --disable-prof-gcc) --enable-prof-libunwind Use the libunwind library (http://www.nongnu.org/libunwind/) for stack backtracing. --disable-prof-libgcc Disable the use of libgcc's backtracing functionality. --disable-prof-gcc Disable the use of gcc intrinsics for backtracing. --with-static-libunwind= Statically link against the specified libunwind.a rather than dynamically linking with -lunwind. --disable-tcache Disable thread-specific caches for small objects. Objects are cached and released in bulk, thus reducing the total number of mutex operations. See the "opt.tcache" option for usage details. --enable-mremap Enable huge realloc() via mremap(2). mremap() is disabled by default because the flavor used is specific to Linux, which has a quirk in its virtual memory allocation algorithm that causes semi-permanent VM map holes under normal jemalloc operation. --disable-munmap Disable virtual memory deallocation via munmap(2); instead keep track of the virtual memory for later use. munmap() is disabled by default (i.e. --disable-munmap is implied) on Linux, which has a quirk in its virtual memory allocation algorithm that causes semi-permanent VM map holes under normal jemalloc operation. --enable-dss Enable support for page allocation/deallocation via sbrk(2), in addition to mmap(2). --disable-fill Disable support for junk/zero filling of memory, quarantine, and redzones. See the "opt.junk", "opt.zero", "opt.quarantine", and "opt.redzone" option documentation for usage details. --disable-valgrind Disable support for Valgrind. --disable-experimental Disable support for the experimental API (*allocm()). --enable-utrace Enable utrace(2)-based allocation tracing. This feature is not broadly portable (FreeBSD has it, but Linux and OS X do not). --enable-xmalloc Enable support for optional immediate termination due to out-of-memory errors, as is commonly implemented by "xmalloc" wrapper function for malloc. See the "opt.xmalloc" option documentation for usage details. --enable-lazy-lock Enable code that wraps pthread_create() to detect when an application switches from single-threaded to multi-threaded mode, so that it can avoid mutex locking/unlocking operations while in single-threaded mode. In practice, this feature usually has little impact on performance unless thread-specific caching is disabled. --disable-tls Disable thread-local storage (TLS), which allows for fast access to thread-local variables via the __thread keyword. If TLS is available, jemalloc uses it for several purposes. --with-xslroot= Specify where to find DocBook XSL stylesheets when building the documentation. The following environment variables (not a definitive list) impact configure's behavior: CFLAGS="?" Pass these flags to the compiler. You probably shouldn't define this unless you know what you are doing. (Use EXTRA_CFLAGS instead.) EXTRA_CFLAGS="?" Append these flags to CFLAGS. This makes it possible to add flags such as -Werror, while allowing the configure script to determine what other flags are appropriate for the specified configuration. The configure script specifically checks whether an optimization flag (-O*) is specified in EXTRA_CFLAGS, and refrains from specifying an optimization level if it finds that one has already been specified. CPPFLAGS="?" Pass these flags to the C preprocessor. Note that CFLAGS is not passed to 'cpp' when 'configure' is looking for include files, so you must use CPPFLAGS instead if you need to help 'configure' find header files. LD_LIBRARY_PATH="?" 'ld' uses this colon-separated list to find libraries. LDFLAGS="?" Pass these flags when linking. PATH="?" 'configure' uses this to find programs. === Advanced compilation ======================================================= To build only parts of jemalloc, use the following targets: build_lib_shared build_lib_static build_lib build_doc_html build_doc_man build_doc To install only parts of jemalloc, use the following targets: install_bin install_include install_lib_shared install_lib_static install_lib install_doc_html install_doc_man install_doc To clean up build results to varying degrees, use the following make targets: clean distclean relclean === Advanced installation ====================================================== Optionally, define make variables when invoking make, including (not exclusively): INCLUDEDIR="?" Use this as the installation prefix for header files. LIBDIR="?" Use this as the installation prefix for libraries. MANDIR="?" Use this as the installation prefix for man pages. DESTDIR="?" Prepend DESTDIR to INCLUDEDIR, LIBDIR, DATADIR, and MANDIR. This is useful when installing to a different path than was specified via --prefix. CC="?" Use this to invoke the C compiler. CFLAGS="?" Pass these flags to the compiler. CPPFLAGS="?" Pass these flags to the C preprocessor. LDFLAGS="?" Pass these flags when linking. PATH="?" Use this to search for programs used during configuration and building. === Development ================================================================ If you intend to make non-trivial changes to jemalloc, use the 'autogen.sh' script rather than 'configure'. This re-generates 'configure', enables configuration dependency rules, and enables re-generation of automatically generated source files. The build system supports using an object directory separate from the source tree. For example, you can create an 'obj' directory, and from within that directory, issue configuration and build commands: autoconf mkdir obj cd obj ../configure --enable-autogen make === Documentation ============================================================== The manual page is generated in both html and roff formats. Any web browser can be used to view the html manual. The roff manual page can be formatted prior to installation via the following command: nroff -man -t doc/jemalloc.3 redis-2.6.16/deps/jemalloc/Makefile.in000066400000000000000000000221201220734223100174730ustar00rootroot00000000000000# Clear out all vpaths, then set just one (default vpath) for the main build # directory. vpath vpath % . # Clear the default suffixes, so that built-in rules are not used. .SUFFIXES : SHELL := /bin/sh CC := @CC@ # Configuration parameters. DESTDIR = BINDIR := $(DESTDIR)@BINDIR@ INCLUDEDIR := $(DESTDIR)@INCLUDEDIR@ LIBDIR := $(DESTDIR)@LIBDIR@ DATADIR := $(DESTDIR)@DATADIR@ MANDIR := $(DESTDIR)@MANDIR@ srcroot := @srcroot@ objroot := @objroot@ abs_srcroot := @abs_srcroot@ abs_objroot := @abs_objroot@ # Build parameters. CPPFLAGS := @CPPFLAGS@ -I$(srcroot)include -I$(objroot)include CFLAGS := @CFLAGS@ LDFLAGS := @LDFLAGS@ EXTRA_LDFLAGS := @EXTRA_LDFLAGS@ LIBS := @LIBS@ RPATH_EXTRA := @RPATH_EXTRA@ SO := @so@ IMPORTLIB := @importlib@ O := @o@ A := @a@ EXE := @exe@ LIBPREFIX := @libprefix@ REV := @rev@ install_suffix := @install_suffix@ ABI := @abi@ XSLTPROC := @XSLTPROC@ AUTOCONF := @AUTOCONF@ _RPATH = @RPATH@ RPATH = $(if $(1),$(call _RPATH,$(1))) cfghdrs_in := @cfghdrs_in@ cfghdrs_out := @cfghdrs_out@ cfgoutputs_in := @cfgoutputs_in@ cfgoutputs_out := @cfgoutputs_out@ enable_autogen := @enable_autogen@ enable_experimental := @enable_experimental@ DSO_LDFLAGS = @DSO_LDFLAGS@ SOREV = @SOREV@ PIC_CFLAGS = @PIC_CFLAGS@ CTARGET = @CTARGET@ LDTARGET = @LDTARGET@ MKLIB = @MKLIB@ CC_MM = @CC_MM@ ifeq (macho, $(ABI)) TEST_LIBRARY_PATH := DYLD_FALLBACK_LIBRARY_PATH="$(objroot)lib" else ifeq (pecoff, $(ABI)) TEST_LIBRARY_PATH := PATH="$(PATH):$(objroot)lib" else TEST_LIBRARY_PATH := endif endif LIBJEMALLOC := $(LIBPREFIX)jemalloc$(install_suffix) # Lists of files. BINS := $(srcroot)bin/pprof $(objroot)bin/jemalloc.sh CHDRS := $(objroot)include/jemalloc/jemalloc$(install_suffix).h \ $(objroot)include/jemalloc/jemalloc_defs$(install_suffix).h CSRCS := $(srcroot)src/jemalloc.c $(srcroot)src/arena.c $(srcroot)src/atomic.c \ $(srcroot)src/base.c $(srcroot)src/bitmap.c $(srcroot)src/chunk.c \ $(srcroot)src/chunk_dss.c $(srcroot)src/chunk_mmap.c \ $(srcroot)src/ckh.c $(srcroot)src/ctl.c $(srcroot)src/extent.c \ $(srcroot)src/hash.c $(srcroot)src/huge.c $(srcroot)src/mb.c \ $(srcroot)src/mutex.c $(srcroot)src/prof.c $(srcroot)src/quarantine.c \ $(srcroot)src/rtree.c $(srcroot)src/stats.c $(srcroot)src/tcache.c \ $(srcroot)src/util.c $(srcroot)src/tsd.c ifeq (macho, $(ABI)) CSRCS += $(srcroot)src/zone.c endif ifeq ($(IMPORTLIB),$(SO)) STATIC_LIBS := $(objroot)lib/$(LIBJEMALLOC).$(A) endif ifdef PIC_CFLAGS STATIC_LIBS += $(objroot)lib/$(LIBJEMALLOC)_pic.$(A) else STATIC_LIBS += $(objroot)lib/$(LIBJEMALLOC)_s.$(A) endif DSOS := $(objroot)lib/$(LIBJEMALLOC).$(SOREV) ifneq ($(SOREV),$(SO)) DSOS += $(objroot)lib/$(LIBJEMALLOC).$(SO) endif MAN3 := $(objroot)doc/jemalloc$(install_suffix).3 DOCS_XML := $(objroot)doc/jemalloc$(install_suffix).xml DOCS_HTML := $(DOCS_XML:$(objroot)%.xml=$(srcroot)%.html) DOCS_MAN3 := $(DOCS_XML:$(objroot)%.xml=$(srcroot)%.3) DOCS := $(DOCS_HTML) $(DOCS_MAN3) CTESTS := $(srcroot)test/aligned_alloc.c $(srcroot)test/allocated.c \ $(srcroot)test/ALLOCM_ARENA.c $(srcroot)test/bitmap.c \ $(srcroot)test/mremap.c $(srcroot)test/posix_memalign.c \ $(srcroot)test/thread_arena.c $(srcroot)test/thread_tcache_enabled.c ifeq ($(enable_experimental), 1) CTESTS += $(srcroot)test/allocm.c $(srcroot)test/rallocm.c endif COBJS := $(CSRCS:$(srcroot)%.c=$(objroot)%.$(O)) CPICOBJS := $(CSRCS:$(srcroot)%.c=$(objroot)%.pic.$(O)) CTESTOBJS := $(CTESTS:$(srcroot)%.c=$(objroot)%.$(O)) .PHONY: all dist doc_html doc_man doc .PHONY: install_bin install_include install_lib .PHONY: install_html install_man install_doc install .PHONY: tests check clean distclean relclean .SECONDARY : $(CTESTOBJS) # Default target. all: build dist: build_doc $(srcroot)doc/%.html : $(objroot)doc/%.xml $(srcroot)doc/stylesheet.xsl $(objroot)doc/html.xsl $(XSLTPROC) -o $@ $(objroot)doc/html.xsl $< $(srcroot)doc/%.3 : $(objroot)doc/%.xml $(srcroot)doc/stylesheet.xsl $(objroot)doc/manpages.xsl $(XSLTPROC) -o $@ $(objroot)doc/manpages.xsl $< build_doc_html: $(DOCS_HTML) build_doc_man: $(DOCS_MAN3) build_doc: $(DOCS) # # Include generated dependency files. # ifdef CC_MM -include $(COBJS:%.$(O)=%.d) -include $(CPICOBJS:%.$(O)=%.d) -include $(CTESTOBJS:%.$(O)=%.d) endif $(COBJS): $(objroot)src/%.$(O): $(srcroot)src/%.c $(CPICOBJS): $(objroot)src/%.pic.$(O): $(srcroot)src/%.c $(CPICOBJS): CFLAGS += $(PIC_CFLAGS) $(CTESTOBJS): $(objroot)test/%.$(O): $(srcroot)test/%.c $(CTESTOBJS): CPPFLAGS += -I$(objroot)test ifneq ($(IMPORTLIB),$(SO)) $(COBJS): CPPFLAGS += -DDLLEXPORT endif ifndef CC_MM # Dependencies HEADER_DIRS = $(srcroot)include/jemalloc/internal \ $(objroot)include/jemalloc $(objroot)include/jemalloc/internal HEADERS = $(wildcard $(foreach dir,$(HEADER_DIRS),$(dir)/*.h)) $(COBJS) $(CPICOBJS) $(CTESTOBJS): $(HEADERS) $(CTESTOBJS): $(objroot)test/jemalloc_test.h endif $(COBJS) $(CPICOBJS) $(CTESTOBJS): %.$(O): @mkdir -p $(@D) $(CC) $(CFLAGS) -c $(CPPFLAGS) $(CTARGET) $< ifdef CC_MM @$(CC) -MM $(CPPFLAGS) -MT $@ -o $(@:%.$(O)=%.d) $< endif ifneq ($(SOREV),$(SO)) %.$(SO) : %.$(SOREV) @mkdir -p $(@D) ln -sf $( $(objroot)$${t}.out 2>&1; \ if test -e "$(srcroot)$${t}.exp"; then \ diff -w -u $(srcroot)$${t}.exp \ $(objroot)$${t}.out >/dev/null 2>&1; \ fail=$$?; \ if test "$${fail}" -eq "1" ; then \ failures=`expr $${failures} + 1`; \ echo "*** FAIL ***"; \ else \ echo "pass"; \ fi; \ else \ echo "*** FAIL *** (.exp file is missing)"; \ failures=`expr $${failures} + 1`; \ fi; \ done; \ echo "========================================="; \ echo "Failures: $${failures}/$${total}"' clean: rm -f $(COBJS) rm -f $(CPICOBJS) rm -f $(COBJS:%.$(O)=%.d) rm -f $(CPICOBJS:%.$(O)=%.d) rm -f $(CTESTOBJS:%.$(O)=%$(EXE)) rm -f $(CTESTOBJS) rm -f $(CTESTOBJS:%.$(O)=%.d) rm -f $(CTESTOBJS:%.$(O)=%.out) rm -f $(DSOS) $(STATIC_LIBS) distclean: clean rm -rf $(objroot)autom4te.cache rm -f $(objroot)config.log rm -f $(objroot)config.status rm -f $(objroot)config.stamp rm -f $(cfghdrs_out) rm -f $(cfgoutputs_out) relclean: distclean rm -f $(objroot)configure rm -f $(srcroot)VERSION rm -f $(DOCS_HTML) rm -f $(DOCS_MAN3) #=============================================================================== # Re-configuration rules. ifeq ($(enable_autogen), 1) $(srcroot)configure : $(srcroot)configure.ac cd ./$(srcroot) && $(AUTOCONF) $(objroot)config.status : $(srcroot)configure ./$(objroot)config.status --recheck $(srcroot)config.stamp.in : $(srcroot)configure.ac echo stamp > $(srcroot)config.stamp.in $(objroot)config.stamp : $(cfgoutputs_in) $(cfghdrs_in) $(srcroot)configure ./$(objroot)config.status @touch $@ # There must be some action in order for make to re-read Makefile when it is # out of date. $(cfgoutputs_out) $(cfghdrs_out) : $(objroot)config.stamp @true endif redis-2.6.16/deps/jemalloc/README000066400000000000000000000013561220734223100163160ustar00rootroot00000000000000jemalloc is a general-purpose scalable concurrent malloc(3) implementation. This distribution is a "portable" implementation that currently targets FreeBSD, Linux, Apple OS X, and MinGW. jemalloc is included as the default allocator in the FreeBSD and NetBSD operating systems, and it is used by the Mozilla Firefox web browser on Microsoft Windows-related platforms. Depending on your needs, one of the other divergent versions may suit your needs better than this distribution. The COPYING file contains copyright and licensing information. The INSTALL file contains information on how to configure, build, and install jemalloc. The ChangeLog file contains a brief summary of changes for each release. URL: http://www.canonware.com/jemalloc/ redis-2.6.16/deps/jemalloc/VERSION000066400000000000000000000000621220734223100164770ustar00rootroot000000000000003.2.0-0-g87499f6748ebe4817571e817e9f680ccb5bf54a9 redis-2.6.16/deps/jemalloc/autogen.sh000077500000000000000000000004121220734223100174270ustar00rootroot00000000000000#!/bin/sh for i in autoconf; do echo "$i" $i if [ $? -ne 0 ]; then echo "Error $? in $i" exit 1 fi done echo "./configure --enable-autogen $@" ./configure --enable-autogen $@ if [ $? -ne 0 ]; then echo "Error $? in ./configure" exit 1 fi redis-2.6.16/deps/jemalloc/bin/000077500000000000000000000000001220734223100162015ustar00rootroot00000000000000redis-2.6.16/deps/jemalloc/bin/jemalloc.sh.in000066400000000000000000000002271220734223100207310ustar00rootroot00000000000000#!/bin/sh prefix=@prefix@ exec_prefix=@exec_prefix@ libdir=@libdir@ @LD_PRELOAD_VAR@=${libdir}/libjemalloc.@SOREV@ export @LD_PRELOAD_VAR@ exec "$@" redis-2.6.16/deps/jemalloc/bin/pprof000077500000000000000000005150061220734223100172640ustar00rootroot00000000000000#! /usr/bin/env perl # Copyright (c) 1998-2007, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # --- # Program for printing the profile generated by common/profiler.cc, # or by the heap profiler (common/debugallocation.cc) # # The profile contains a sequence of entries of the form: # # This program parses the profile, and generates user-readable # output. # # Examples: # # % tools/pprof "program" "profile" # Enters "interactive" mode # # % tools/pprof --text "program" "profile" # Generates one line per procedure # # % tools/pprof --gv "program" "profile" # Generates annotated call-graph and displays via "gv" # # % tools/pprof --gv --focus=Mutex "program" "profile" # Restrict to code paths that involve an entry that matches "Mutex" # # % tools/pprof --gv --focus=Mutex --ignore=string "program" "profile" # Restrict to code paths that involve an entry that matches "Mutex" # and does not match "string" # # % tools/pprof --list=IBF_CheckDocid "program" "profile" # Generates disassembly listing of all routines with at least one # sample that match the --list= pattern. The listing is # annotated with the flat and cumulative sample counts at each line. # # % tools/pprof --disasm=IBF_CheckDocid "program" "profile" # Generates disassembly listing of all routines with at least one # sample that match the --disasm= pattern. The listing is # annotated with the flat and cumulative sample counts at each PC value. # # TODO: Use color to indicate files? use strict; use warnings; use Getopt::Long; my $PPROF_VERSION = "2.0"; # These are the object tools we use which can come from a # user-specified location using --tools, from the PPROF_TOOLS # environment variable, or from the environment. my %obj_tool_map = ( "objdump" => "objdump", "nm" => "nm", "addr2line" => "addr2line", "c++filt" => "c++filt", ## ConfigureObjTools may add architecture-specific entries: #"nm_pdb" => "nm-pdb", # for reading windows (PDB-format) executables #"addr2line_pdb" => "addr2line-pdb", # ditto #"otool" => "otool", # equivalent of objdump on OS X ); # NOTE: these are lists, so you can put in commandline flags if you want. my @DOT = ("dot"); # leave non-absolute, since it may be in /usr/local my @GV = ("gv"); my @EVINCE = ("evince"); # could also be xpdf or perhaps acroread my @KCACHEGRIND = ("kcachegrind"); my @PS2PDF = ("ps2pdf"); # These are used for dynamic profiles my @URL_FETCHER = ("curl", "-s"); # These are the web pages that servers need to support for dynamic profiles my $HEAP_PAGE = "/pprof/heap"; my $PROFILE_PAGE = "/pprof/profile"; # must support cgi-param "?seconds=#" my $PMUPROFILE_PAGE = "/pprof/pmuprofile(?:\\?.*)?"; # must support cgi-param # ?seconds=#&event=x&period=n my $GROWTH_PAGE = "/pprof/growth"; my $CONTENTION_PAGE = "/pprof/contention"; my $WALL_PAGE = "/pprof/wall(?:\\?.*)?"; # accepts options like namefilter my $FILTEREDPROFILE_PAGE = "/pprof/filteredprofile(?:\\?.*)?"; my $CENSUSPROFILE_PAGE = "/pprof/censusprofile(?:\\?.*)?"; # must support cgi-param # "?seconds=#", # "?tags_regexp=#" and # "?type=#". my $SYMBOL_PAGE = "/pprof/symbol"; # must support symbol lookup via POST my $PROGRAM_NAME_PAGE = "/pprof/cmdline"; # These are the web pages that can be named on the command line. # All the alternatives must begin with /. my $PROFILES = "($HEAP_PAGE|$PROFILE_PAGE|$PMUPROFILE_PAGE|" . "$GROWTH_PAGE|$CONTENTION_PAGE|$WALL_PAGE|" . "$FILTEREDPROFILE_PAGE|$CENSUSPROFILE_PAGE)"; # default binary name my $UNKNOWN_BINARY = "(unknown)"; # There is a pervasive dependency on the length (in hex characters, # i.e., nibbles) of an address, distinguishing between 32-bit and # 64-bit profiles. To err on the safe size, default to 64-bit here: my $address_length = 16; my $dev_null = "/dev/null"; if (! -e $dev_null && $^O =~ /MSWin/) { # $^O is the OS perl was built for $dev_null = "nul"; } # A list of paths to search for shared object files my @prefix_list = (); # Special routine name that should not have any symbols. # Used as separator to parse "addr2line -i" output. my $sep_symbol = '_fini'; my $sep_address = undef; ##### Argument parsing ##### sub usage_string { return < is a space separated list of profile names. pprof [options] is a list of profile files where each file contains the necessary symbol mappings as well as profile data (likely generated with --raw). pprof [options] is a remote form. Symbols are obtained from host:port$SYMBOL_PAGE Each name can be: /path/to/profile - a path to a profile file host:port[/] - a location of a service to get profile from The / can be $HEAP_PAGE, $PROFILE_PAGE, /pprof/pmuprofile, $GROWTH_PAGE, $CONTENTION_PAGE, /pprof/wall, $CENSUSPROFILE_PAGE, or /pprof/filteredprofile. For instance: pprof http://myserver.com:80$HEAP_PAGE If / is omitted, the service defaults to $PROFILE_PAGE (cpu profiling). pprof --symbols Maps addresses to symbol names. In this mode, stdin should be a list of library mappings, in the same format as is found in the heap- and cpu-profile files (this loosely matches that of /proc/self/maps on linux), followed by a list of hex addresses to map, one per line. For more help with querying remote servers, including how to add the necessary server-side support code, see this filename (or one like it): /usr/doc/gperftools-$PPROF_VERSION/pprof_remote_servers.html Options: --cum Sort by cumulative data --base= Subtract from before display --interactive Run in interactive mode (interactive "help" gives help) [default] --seconds= Length of time for dynamic profiles [default=30 secs] --add_lib= Read additional symbols and line info from the given library --lib_prefix= Comma separated list of library path prefixes Reporting Granularity: --addresses Report at address level --lines Report at source line level --functions Report at function level [default] --files Report at source file level Output type: --text Generate text report --callgrind Generate callgrind format to stdout --gv Generate Postscript and display --evince Generate PDF and display --web Generate SVG and display --list= Generate source listing of matching routines --disasm= Generate disassembly of matching routines --symbols Print demangled symbol names found at given addresses --dot Generate DOT file to stdout --ps Generate Postcript to stdout --pdf Generate PDF to stdout --svg Generate SVG to stdout --gif Generate GIF to stdout --raw Generate symbolized pprof data (useful with remote fetch) Heap-Profile Options: --inuse_space Display in-use (mega)bytes [default] --inuse_objects Display in-use objects --alloc_space Display allocated (mega)bytes --alloc_objects Display allocated objects --show_bytes Display space in bytes --drop_negative Ignore negative differences Contention-profile options: --total_delay Display total delay at each region [default] --contentions Display number of delays at each region --mean_delay Display mean delay at each region Call-graph Options: --nodecount= Show at most so many nodes [default=80] --nodefraction= Hide nodes below *total [default=.005] --edgefraction= Hide edges below *total [default=.001] --maxdegree= Max incoming/outgoing edges per node [default=8] --focus= Focus on nodes matching --ignore= Ignore nodes matching --scale= Set GV scaling [default=0] --heapcheck Make nodes with non-0 object counts (i.e. direct leak generators) more visible Miscellaneous: --tools=[,...] \$PATH for object tool pathnames --test Run unit tests --help This message --version Version information Environment Variables: PPROF_TMPDIR Profiles directory. Defaults to \$HOME/pprof PPROF_TOOLS Prefix for object tools pathnames Examples: pprof /bin/ls ls.prof Enters "interactive" mode pprof --text /bin/ls ls.prof Outputs one line per procedure pprof --web /bin/ls ls.prof Displays annotated call-graph in web browser pprof --gv /bin/ls ls.prof Displays annotated call-graph via 'gv' pprof --gv --focus=Mutex /bin/ls ls.prof Restricts to code paths including a .*Mutex.* entry pprof --gv --focus=Mutex --ignore=string /bin/ls ls.prof Code paths including Mutex but not string pprof --list=getdir /bin/ls ls.prof (Per-line) annotated source listing for getdir() pprof --disasm=getdir /bin/ls ls.prof (Per-PC) annotated disassembly for getdir() pprof http://localhost:1234/ Enters "interactive" mode pprof --text localhost:1234 Outputs one line per procedure for localhost:1234 pprof --raw localhost:1234 > ./local.raw pprof --text ./local.raw Fetches a remote profile for later analysis and then analyzes it in text mode. EOF } sub version_string { return < \$main::opt_help, "version!" => \$main::opt_version, "cum!" => \$main::opt_cum, "base=s" => \$main::opt_base, "seconds=i" => \$main::opt_seconds, "add_lib=s" => \$main::opt_lib, "lib_prefix=s" => \$main::opt_lib_prefix, "functions!" => \$main::opt_functions, "lines!" => \$main::opt_lines, "addresses!" => \$main::opt_addresses, "files!" => \$main::opt_files, "text!" => \$main::opt_text, "callgrind!" => \$main::opt_callgrind, "list=s" => \$main::opt_list, "disasm=s" => \$main::opt_disasm, "symbols!" => \$main::opt_symbols, "gv!" => \$main::opt_gv, "evince!" => \$main::opt_evince, "web!" => \$main::opt_web, "dot!" => \$main::opt_dot, "ps!" => \$main::opt_ps, "pdf!" => \$main::opt_pdf, "svg!" => \$main::opt_svg, "gif!" => \$main::opt_gif, "raw!" => \$main::opt_raw, "interactive!" => \$main::opt_interactive, "nodecount=i" => \$main::opt_nodecount, "nodefraction=f" => \$main::opt_nodefraction, "edgefraction=f" => \$main::opt_edgefraction, "maxdegree=i" => \$main::opt_maxdegree, "focus=s" => \$main::opt_focus, "ignore=s" => \$main::opt_ignore, "scale=i" => \$main::opt_scale, "heapcheck" => \$main::opt_heapcheck, "inuse_space!" => \$main::opt_inuse_space, "inuse_objects!" => \$main::opt_inuse_objects, "alloc_space!" => \$main::opt_alloc_space, "alloc_objects!" => \$main::opt_alloc_objects, "show_bytes!" => \$main::opt_show_bytes, "drop_negative!" => \$main::opt_drop_negative, "total_delay!" => \$main::opt_total_delay, "contentions!" => \$main::opt_contentions, "mean_delay!" => \$main::opt_mean_delay, "tools=s" => \$main::opt_tools, "test!" => \$main::opt_test, "debug!" => \$main::opt_debug, # Undocumented flags used only by unittests: "test_stride=i" => \$main::opt_test_stride, ) || usage("Invalid option(s)"); # Deal with the standard --help and --version if ($main::opt_help) { print usage_string(); exit(0); } if ($main::opt_version) { print version_string(); exit(0); } # Disassembly/listing/symbols mode requires address-level info if ($main::opt_disasm || $main::opt_list || $main::opt_symbols) { $main::opt_functions = 0; $main::opt_lines = 0; $main::opt_addresses = 1; $main::opt_files = 0; } # Check heap-profiling flags if ($main::opt_inuse_space + $main::opt_inuse_objects + $main::opt_alloc_space + $main::opt_alloc_objects > 1) { usage("Specify at most on of --inuse/--alloc options"); } # Check output granularities my $grains = $main::opt_functions + $main::opt_lines + $main::opt_addresses + $main::opt_files + 0; if ($grains > 1) { usage("Only specify one output granularity option"); } if ($grains == 0) { $main::opt_functions = 1; } # Check output modes my $modes = $main::opt_text + $main::opt_callgrind + ($main::opt_list eq '' ? 0 : 1) + ($main::opt_disasm eq '' ? 0 : 1) + ($main::opt_symbols == 0 ? 0 : 1) + $main::opt_gv + $main::opt_evince + $main::opt_web + $main::opt_dot + $main::opt_ps + $main::opt_pdf + $main::opt_svg + $main::opt_gif + $main::opt_raw + $main::opt_interactive + 0; if ($modes > 1) { usage("Only specify one output mode"); } if ($modes == 0) { if (-t STDOUT) { # If STDOUT is a tty, activate interactive mode $main::opt_interactive = 1; } else { $main::opt_text = 1; } } if ($main::opt_test) { RunUnitTests(); # Should not return exit(1); } # Binary name and profile arguments list $main::prog = ""; @main::pfile_args = (); # Remote profiling without a binary (using $SYMBOL_PAGE instead) if (@ARGV > 0) { if (IsProfileURL($ARGV[0])) { $main::use_symbol_page = 1; } elsif (IsSymbolizedProfileFile($ARGV[0])) { $main::use_symbolized_profile = 1; $main::prog = $UNKNOWN_BINARY; # will be set later from the profile file } } if ($main::use_symbol_page || $main::use_symbolized_profile) { # We don't need a binary! my %disabled = ('--lines' => $main::opt_lines, '--disasm' => $main::opt_disasm); for my $option (keys %disabled) { usage("$option cannot be used without a binary") if $disabled{$option}; } # Set $main::prog later... scalar(@ARGV) || usage("Did not specify profile file"); } elsif ($main::opt_symbols) { # --symbols needs a binary-name (to run nm on, etc) but not profiles $main::prog = shift(@ARGV) || usage("Did not specify program"); } else { $main::prog = shift(@ARGV) || usage("Did not specify program"); scalar(@ARGV) || usage("Did not specify profile file"); } # Parse profile file/location arguments foreach my $farg (@ARGV) { if ($farg =~ m/(.*)\@([0-9]+)(|\/.*)$/ ) { my $machine = $1; my $num_machines = $2; my $path = $3; for (my $i = 0; $i < $num_machines; $i++) { unshift(@main::pfile_args, "$i.$machine$path"); } } else { unshift(@main::pfile_args, $farg); } } if ($main::use_symbol_page) { unless (IsProfileURL($main::pfile_args[0])) { error("The first profile should be a remote form to use $SYMBOL_PAGE\n"); } CheckSymbolPage(); $main::prog = FetchProgramName(); } elsif (!$main::use_symbolized_profile) { # may not need objtools! ConfigureObjTools($main::prog) } # Break the opt_lib_prefix into the prefix_list array @prefix_list = split (',', $main::opt_lib_prefix); # Remove trailing / from the prefixes, in the list to prevent # searching things like /my/path//lib/mylib.so foreach (@prefix_list) { s|/+$||; } } sub Main() { Init(); $main::collected_profile = undef; @main::profile_files = (); $main::op_time = time(); # Printing symbols is special and requires a lot less info that most. if ($main::opt_symbols) { PrintSymbols(*STDIN); # Get /proc/maps and symbols output from stdin return; } # Fetch all profile data FetchDynamicProfiles(); # this will hold symbols that we read from the profile files my $symbol_map = {}; # Read one profile, pick the last item on the list my $data = ReadProfile($main::prog, pop(@main::profile_files)); my $profile = $data->{profile}; my $pcs = $data->{pcs}; my $libs = $data->{libs}; # Info about main program and shared libraries $symbol_map = MergeSymbols($symbol_map, $data->{symbols}); # Add additional profiles, if available. if (scalar(@main::profile_files) > 0) { foreach my $pname (@main::profile_files) { my $data2 = ReadProfile($main::prog, $pname); $profile = AddProfile($profile, $data2->{profile}); $pcs = AddPcs($pcs, $data2->{pcs}); $symbol_map = MergeSymbols($symbol_map, $data2->{symbols}); } } # Subtract base from profile, if specified if ($main::opt_base ne '') { my $base = ReadProfile($main::prog, $main::opt_base); $profile = SubtractProfile($profile, $base->{profile}); $pcs = AddPcs($pcs, $base->{pcs}); $symbol_map = MergeSymbols($symbol_map, $base->{symbols}); } # Get total data in profile my $total = TotalProfile($profile); # Collect symbols my $symbols; if ($main::use_symbolized_profile) { $symbols = FetchSymbols($pcs, $symbol_map); } elsif ($main::use_symbol_page) { $symbols = FetchSymbols($pcs); } else { # TODO(csilvers): $libs uses the /proc/self/maps data from profile1, # which may differ from the data from subsequent profiles, especially # if they were run on different machines. Use appropriate libs for # each pc somehow. $symbols = ExtractSymbols($libs, $pcs); } # Remove uniniteresting stack items $profile = RemoveUninterestingFrames($symbols, $profile); # Focus? if ($main::opt_focus ne '') { $profile = FocusProfile($symbols, $profile, $main::opt_focus); } # Ignore? if ($main::opt_ignore ne '') { $profile = IgnoreProfile($symbols, $profile, $main::opt_ignore); } my $calls = ExtractCalls($symbols, $profile); # Reduce profiles to required output granularity, and also clean # each stack trace so a given entry exists at most once. my $reduced = ReduceProfile($symbols, $profile); # Get derived profiles my $flat = FlatProfile($reduced); my $cumulative = CumulativeProfile($reduced); # Print if (!$main::opt_interactive) { if ($main::opt_disasm) { PrintDisassembly($libs, $flat, $cumulative, $main::opt_disasm); } elsif ($main::opt_list) { PrintListing($total, $libs, $flat, $cumulative, $main::opt_list, 0); } elsif ($main::opt_text) { # Make sure the output is empty when have nothing to report # (only matters when --heapcheck is given but we must be # compatible with old branches that did not pass --heapcheck always): if ($total != 0) { printf("Total: %s %s\n", Unparse($total), Units()); } PrintText($symbols, $flat, $cumulative, -1); } elsif ($main::opt_raw) { PrintSymbolizedProfile($symbols, $profile, $main::prog); } elsif ($main::opt_callgrind) { PrintCallgrind($calls); } else { if (PrintDot($main::prog, $symbols, $profile, $flat, $cumulative, $total)) { if ($main::opt_gv) { RunGV(TempName($main::next_tmpfile, "ps"), ""); } elsif ($main::opt_evince) { RunEvince(TempName($main::next_tmpfile, "pdf"), ""); } elsif ($main::opt_web) { my $tmp = TempName($main::next_tmpfile, "svg"); RunWeb($tmp); # The command we run might hand the file name off # to an already running browser instance and then exit. # Normally, we'd remove $tmp on exit (right now), # but fork a child to remove $tmp a little later, so that the # browser has time to load it first. delete $main::tempnames{$tmp}; if (fork() == 0) { sleep 5; unlink($tmp); exit(0); } } } else { cleanup(); exit(1); } } } else { InteractiveMode($profile, $symbols, $libs, $total); } cleanup(); exit(0); } ##### Entry Point ##### Main(); # Temporary code to detect if we're running on a Goobuntu system. # These systems don't have the right stuff installed for the special # Readline libraries to work, so as a temporary workaround, we default # to using the normal stdio code, rather than the fancier readline-based # code sub ReadlineMightFail { if (-e '/lib/libtermcap.so.2') { return 0; # libtermcap exists, so readline should be okay } else { return 1; } } sub RunGV { my $fname = shift; my $bg = shift; # "" or " &" if we should run in background if (!system(ShellEscape(@GV, "--version") . " >$dev_null 2>&1")) { # Options using double dash are supported by this gv version. # Also, turn on noantialias to better handle bug in gv for # postscript files with large dimensions. # TODO: Maybe we should not pass the --noantialias flag # if the gv version is known to work properly without the flag. system(ShellEscape(@GV, "--scale=$main::opt_scale", "--noantialias", $fname) . $bg); } else { # Old gv version - only supports options that use single dash. print STDERR ShellEscape(@GV, "-scale", $main::opt_scale) . "\n"; system(ShellEscape(@GV, "-scale", "$main::opt_scale", $fname) . $bg); } } sub RunEvince { my $fname = shift; my $bg = shift; # "" or " &" if we should run in background system(ShellEscape(@EVINCE, $fname) . $bg); } sub RunWeb { my $fname = shift; print STDERR "Loading web page file:///$fname\n"; if (`uname` =~ /Darwin/) { # OS X: open will use standard preference for SVG files. system("/usr/bin/open", $fname); return; } # Some kind of Unix; try generic symlinks, then specific browsers. # (Stop once we find one.) # Works best if the browser is already running. my @alt = ( "/etc/alternatives/gnome-www-browser", "/etc/alternatives/x-www-browser", "google-chrome", "firefox", ); foreach my $b (@alt) { if (system($b, $fname) == 0) { return; } } print STDERR "Could not load web browser.\n"; } sub RunKcachegrind { my $fname = shift; my $bg = shift; # "" or " &" if we should run in background print STDERR "Starting '@KCACHEGRIND " . $fname . $bg . "'\n"; system(ShellEscape(@KCACHEGRIND, $fname) . $bg); } ##### Interactive helper routines ##### sub InteractiveMode { $| = 1; # Make output unbuffered for interactive mode my ($orig_profile, $symbols, $libs, $total) = @_; print STDERR "Welcome to pprof! For help, type 'help'.\n"; # Use ReadLine if it's installed and input comes from a console. if ( -t STDIN && !ReadlineMightFail() && defined(eval {require Term::ReadLine}) ) { my $term = new Term::ReadLine 'pprof'; while ( defined ($_ = $term->readline('(pprof) '))) { $term->addhistory($_) if /\S/; if (!InteractiveCommand($orig_profile, $symbols, $libs, $total, $_)) { last; # exit when we get an interactive command to quit } } } else { # don't have readline while (1) { print STDERR "(pprof) "; $_ = ; last if ! defined $_ ; s/\r//g; # turn windows-looking lines into unix-looking lines # Save some flags that might be reset by InteractiveCommand() my $save_opt_lines = $main::opt_lines; if (!InteractiveCommand($orig_profile, $symbols, $libs, $total, $_)) { last; # exit when we get an interactive command to quit } # Restore flags $main::opt_lines = $save_opt_lines; } } } # Takes two args: orig profile, and command to run. # Returns 1 if we should keep going, or 0 if we were asked to quit sub InteractiveCommand { my($orig_profile, $symbols, $libs, $total, $command) = @_; $_ = $command; # just to make future m//'s easier if (!defined($_)) { print STDERR "\n"; return 0; } if (m/^\s*quit/) { return 0; } if (m/^\s*help/) { InteractiveHelpMessage(); return 1; } # Clear all the mode options -- mode is controlled by "$command" $main::opt_text = 0; $main::opt_callgrind = 0; $main::opt_disasm = 0; $main::opt_list = 0; $main::opt_gv = 0; $main::opt_evince = 0; $main::opt_cum = 0; if (m/^\s*(text|top)(\d*)\s*(.*)/) { $main::opt_text = 1; my $line_limit = ($2 ne "") ? int($2) : 10; my $routine; my $ignore; ($routine, $ignore) = ParseInteractiveArgs($3); my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore); my $reduced = ReduceProfile($symbols, $profile); # Get derived profiles my $flat = FlatProfile($reduced); my $cumulative = CumulativeProfile($reduced); PrintText($symbols, $flat, $cumulative, $line_limit); return 1; } if (m/^\s*callgrind\s*([^ \n]*)/) { $main::opt_callgrind = 1; # Get derived profiles my $calls = ExtractCalls($symbols, $orig_profile); my $filename = $1; if ( $1 eq '' ) { $filename = TempName($main::next_tmpfile, "callgrind"); } PrintCallgrind($calls, $filename); if ( $1 eq '' ) { RunKcachegrind($filename, " & "); $main::next_tmpfile++; } return 1; } if (m/^\s*(web)?list\s*(.+)/) { my $html = (defined($1) && ($1 eq "web")); $main::opt_list = 1; my $routine; my $ignore; ($routine, $ignore) = ParseInteractiveArgs($2); my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore); my $reduced = ReduceProfile($symbols, $profile); # Get derived profiles my $flat = FlatProfile($reduced); my $cumulative = CumulativeProfile($reduced); PrintListing($total, $libs, $flat, $cumulative, $routine, $html); return 1; } if (m/^\s*disasm\s*(.+)/) { $main::opt_disasm = 1; my $routine; my $ignore; ($routine, $ignore) = ParseInteractiveArgs($1); # Process current profile to account for various settings my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore); my $reduced = ReduceProfile($symbols, $profile); # Get derived profiles my $flat = FlatProfile($reduced); my $cumulative = CumulativeProfile($reduced); PrintDisassembly($libs, $flat, $cumulative, $routine); return 1; } if (m/^\s*(gv|web|evince)\s*(.*)/) { $main::opt_gv = 0; $main::opt_evince = 0; $main::opt_web = 0; if ($1 eq "gv") { $main::opt_gv = 1; } elsif ($1 eq "evince") { $main::opt_evince = 1; } elsif ($1 eq "web") { $main::opt_web = 1; } my $focus; my $ignore; ($focus, $ignore) = ParseInteractiveArgs($2); # Process current profile to account for various settings my $profile = ProcessProfile($total, $orig_profile, $symbols, $focus, $ignore); my $reduced = ReduceProfile($symbols, $profile); # Get derived profiles my $flat = FlatProfile($reduced); my $cumulative = CumulativeProfile($reduced); if (PrintDot($main::prog, $symbols, $profile, $flat, $cumulative, $total)) { if ($main::opt_gv) { RunGV(TempName($main::next_tmpfile, "ps"), " &"); } elsif ($main::opt_evince) { RunEvince(TempName($main::next_tmpfile, "pdf"), " &"); } elsif ($main::opt_web) { RunWeb(TempName($main::next_tmpfile, "svg")); } $main::next_tmpfile++; } return 1; } if (m/^\s*$/) { return 1; } print STDERR "Unknown command: try 'help'.\n"; return 1; } sub ProcessProfile { my $total_count = shift; my $orig_profile = shift; my $symbols = shift; my $focus = shift; my $ignore = shift; # Process current profile to account for various settings my $profile = $orig_profile; printf("Total: %s %s\n", Unparse($total_count), Units()); if ($focus ne '') { $profile = FocusProfile($symbols, $profile, $focus); my $focus_count = TotalProfile($profile); printf("After focusing on '%s': %s %s of %s (%0.1f%%)\n", $focus, Unparse($focus_count), Units(), Unparse($total_count), ($focus_count*100.0) / $total_count); } if ($ignore ne '') { $profile = IgnoreProfile($symbols, $profile, $ignore); my $ignore_count = TotalProfile($profile); printf("After ignoring '%s': %s %s of %s (%0.1f%%)\n", $ignore, Unparse($ignore_count), Units(), Unparse($total_count), ($ignore_count*100.0) / $total_count); } return $profile; } sub InteractiveHelpMessage { print STDERR <{$k}; my @addrs = split(/\n/, $k); if ($#addrs >= 0) { my $depth = $#addrs + 1; # int(foo / 2**32) is the only reliable way to get rid of bottom # 32 bits on both 32- and 64-bit systems. print pack('L*', $count & 0xFFFFFFFF, int($count / 2**32)); print pack('L*', $depth & 0xFFFFFFFF, int($depth / 2**32)); foreach my $full_addr (@addrs) { my $addr = $full_addr; $addr =~ s/0x0*//; # strip off leading 0x, zeroes if (length($addr) > 16) { print STDERR "Invalid address in profile: $full_addr\n"; next; } my $low_addr = substr($addr, -8); # get last 8 hex chars my $high_addr = substr($addr, -16, 8); # get up to 8 more hex chars print pack('L*', hex('0x' . $low_addr), hex('0x' . $high_addr)); } } } } # Print symbols and profile data sub PrintSymbolizedProfile { my $symbols = shift; my $profile = shift; my $prog = shift; $SYMBOL_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $symbol_marker = $&; print '--- ', $symbol_marker, "\n"; if (defined($prog)) { print 'binary=', $prog, "\n"; } while (my ($pc, $name) = each(%{$symbols})) { my $sep = ' '; print '0x', $pc; # We have a list of function names, which include the inlined # calls. They are separated (and terminated) by --, which is # illegal in function names. for (my $j = 2; $j <= $#{$name}; $j += 3) { print $sep, $name->[$j]; $sep = '--'; } print "\n"; } print '---', "\n"; $PROFILE_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $profile_marker = $&; print '--- ', $profile_marker, "\n"; if (defined($main::collected_profile)) { # if used with remote fetch, simply dump the collected profile to output. open(SRC, "<$main::collected_profile"); while () { print $_; } close(SRC); } else { # dump a cpu-format profile to standard out PrintProfileData($profile); } } # Print text output sub PrintText { my $symbols = shift; my $flat = shift; my $cumulative = shift; my $line_limit = shift; my $total = TotalProfile($flat); # Which profile to sort by? my $s = $main::opt_cum ? $cumulative : $flat; my $running_sum = 0; my $lines = 0; foreach my $k (sort { GetEntry($s, $b) <=> GetEntry($s, $a) || $a cmp $b } keys(%{$cumulative})) { my $f = GetEntry($flat, $k); my $c = GetEntry($cumulative, $k); $running_sum += $f; my $sym = $k; if (exists($symbols->{$k})) { $sym = $symbols->{$k}->[0] . " " . $symbols->{$k}->[1]; if ($main::opt_addresses) { $sym = $k . " " . $sym; } } if ($f != 0 || $c != 0) { printf("%8s %6s %6s %8s %6s %s\n", Unparse($f), Percent($f, $total), Percent($running_sum, $total), Unparse($c), Percent($c, $total), $sym); } $lines++; last if ($line_limit >= 0 && $lines >= $line_limit); } } # Callgrind format has a compression for repeated function and file # names. You show the name the first time, and just use its number # subsequently. This can cut down the file to about a third or a # quarter of its uncompressed size. $key and $val are the key/value # pair that would normally be printed by callgrind; $map is a map from # value to number. sub CompressedCGName { my($key, $val, $map) = @_; my $idx = $map->{$val}; # For very short keys, providing an index hurts rather than helps. if (length($val) <= 3) { return "$key=$val\n"; } elsif (defined($idx)) { return "$key=($idx)\n"; } else { # scalar(keys $map) gives the number of items in the map. $idx = scalar(keys(%{$map})) + 1; $map->{$val} = $idx; return "$key=($idx) $val\n"; } } # Print the call graph in a way that's suiteable for callgrind. sub PrintCallgrind { my $calls = shift; my $filename; my %filename_to_index_map; my %fnname_to_index_map; if ($main::opt_interactive) { $filename = shift; print STDERR "Writing callgrind file to '$filename'.\n" } else { $filename = "&STDOUT"; } open(CG, ">$filename"); printf CG ("events: Hits\n\n"); foreach my $call ( map { $_->[0] } sort { $a->[1] cmp $b ->[1] || $a->[2] <=> $b->[2] } map { /([^:]+):(\d+):([^ ]+)( -> ([^:]+):(\d+):(.+))?/; [$_, $1, $2] } keys %$calls ) { my $count = int($calls->{$call}); $call =~ /([^:]+):(\d+):([^ ]+)( -> ([^:]+):(\d+):(.+))?/; my ( $caller_file, $caller_line, $caller_function, $callee_file, $callee_line, $callee_function ) = ( $1, $2, $3, $5, $6, $7 ); # TODO(csilvers): for better compression, collect all the # caller/callee_files and functions first, before printing # anything, and only compress those referenced more than once. printf CG CompressedCGName("fl", $caller_file, \%filename_to_index_map); printf CG CompressedCGName("fn", $caller_function, \%fnname_to_index_map); if (defined $6) { printf CG CompressedCGName("cfl", $callee_file, \%filename_to_index_map); printf CG CompressedCGName("cfn", $callee_function, \%fnname_to_index_map); printf CG ("calls=$count $callee_line\n"); } printf CG ("$caller_line $count\n\n"); } } # Print disassembly for all all routines that match $main::opt_disasm sub PrintDisassembly { my $libs = shift; my $flat = shift; my $cumulative = shift; my $disasm_opts = shift; my $total = TotalProfile($flat); foreach my $lib (@{$libs}) { my $symbol_table = GetProcedureBoundaries($lib->[0], $disasm_opts); my $offset = AddressSub($lib->[1], $lib->[3]); foreach my $routine (sort ByName keys(%{$symbol_table})) { my $start_addr = $symbol_table->{$routine}->[0]; my $end_addr = $symbol_table->{$routine}->[1]; # See if there are any samples in this routine my $length = hex(AddressSub($end_addr, $start_addr)); my $addr = AddressAdd($start_addr, $offset); for (my $i = 0; $i < $length; $i++) { if (defined($cumulative->{$addr})) { PrintDisassembledFunction($lib->[0], $offset, $routine, $flat, $cumulative, $start_addr, $end_addr, $total); last; } $addr = AddressInc($addr); } } } } # Return reference to array of tuples of the form: # [start_address, filename, linenumber, instruction, limit_address] # E.g., # ["0x806c43d", "/foo/bar.cc", 131, "ret", "0x806c440"] sub Disassemble { my $prog = shift; my $offset = shift; my $start_addr = shift; my $end_addr = shift; my $objdump = $obj_tool_map{"objdump"}; my $cmd = ShellEscape($objdump, "-C", "-d", "-l", "--no-show-raw-insn", "--start-address=0x$start_addr", "--stop-address=0x$end_addr", $prog); open(OBJDUMP, "$cmd |") || error("$cmd: $!\n"); my @result = (); my $filename = ""; my $linenumber = -1; my $last = ["", "", "", ""]; while () { s/\r//g; # turn windows-looking lines into unix-looking lines chop; if (m|\s*([^:\s]+):(\d+)\s*$|) { # Location line of the form: # : $filename = $1; $linenumber = $2; } elsif (m/^ +([0-9a-f]+):\s*(.*)/) { # Disassembly line -- zero-extend address to full length my $addr = HexExtend($1); my $k = AddressAdd($addr, $offset); $last->[4] = $k; # Store ending address for previous instruction $last = [$k, $filename, $linenumber, $2, $end_addr]; push(@result, $last); } } close(OBJDUMP); return @result; } # The input file should contain lines of the form /proc/maps-like # output (same format as expected from the profiles) or that looks # like hex addresses (like "0xDEADBEEF"). We will parse all # /proc/maps output, and for all the hex addresses, we will output # "short" symbol names, one per line, in the same order as the input. sub PrintSymbols { my $maps_and_symbols_file = shift; # ParseLibraries expects pcs to be in a set. Fine by us... my @pclist = (); # pcs in sorted order my $pcs = {}; my $map = ""; foreach my $line (<$maps_and_symbols_file>) { $line =~ s/\r//g; # turn windows-looking lines into unix-looking lines if ($line =~ /\b(0x[0-9a-f]+)\b/i) { push(@pclist, HexExtend($1)); $pcs->{$pclist[-1]} = 1; } else { $map .= $line; } } my $libs = ParseLibraries($main::prog, $map, $pcs); my $symbols = ExtractSymbols($libs, $pcs); foreach my $pc (@pclist) { # ->[0] is the shortname, ->[2] is the full name print(($symbols->{$pc}->[0] || "??") . "\n"); } } # For sorting functions by name sub ByName { return ShortFunctionName($a) cmp ShortFunctionName($b); } # Print source-listing for all all routines that match $list_opts sub PrintListing { my $total = shift; my $libs = shift; my $flat = shift; my $cumulative = shift; my $list_opts = shift; my $html = shift; my $output = \*STDOUT; my $fname = ""; if ($html) { # Arrange to write the output to a temporary file $fname = TempName($main::next_tmpfile, "html"); $main::next_tmpfile++; if (!open(TEMP, ">$fname")) { print STDERR "$fname: $!\n"; return; } $output = \*TEMP; print $output HtmlListingHeader(); printf $output ("
%s
Total: %s %s
\n", $main::prog, Unparse($total), Units()); } my $listed = 0; foreach my $lib (@{$libs}) { my $symbol_table = GetProcedureBoundaries($lib->[0], $list_opts); my $offset = AddressSub($lib->[1], $lib->[3]); foreach my $routine (sort ByName keys(%{$symbol_table})) { # Print if there are any samples in this routine my $start_addr = $symbol_table->{$routine}->[0]; my $end_addr = $symbol_table->{$routine}->[1]; my $length = hex(AddressSub($end_addr, $start_addr)); my $addr = AddressAdd($start_addr, $offset); for (my $i = 0; $i < $length; $i++) { if (defined($cumulative->{$addr})) { $listed += PrintSource( $lib->[0], $offset, $routine, $flat, $cumulative, $start_addr, $end_addr, $html, $output); last; } $addr = AddressInc($addr); } } } if ($html) { if ($listed > 0) { print $output HtmlListingFooter(); close($output); RunWeb($fname); } else { close($output); unlink($fname); } } } sub HtmlListingHeader { return <<'EOF'; Pprof listing EOF } sub HtmlListingFooter { return <<'EOF'; EOF } sub HtmlEscape { my $text = shift; $text =~ s/&/&/g; $text =~ s//>/g; return $text; } # Returns the indentation of the line, if it has any non-whitespace # characters. Otherwise, returns -1. sub Indentation { my $line = shift; if (m/^(\s*)\S/) { return length($1); } else { return -1; } } # If the symbol table contains inlining info, Disassemble() may tag an # instruction with a location inside an inlined function. But for # source listings, we prefer to use the location in the function we # are listing. So use MapToSymbols() to fetch full location # information for each instruction and then pick out the first # location from a location list (location list contains callers before # callees in case of inlining). # # After this routine has run, each entry in $instructions contains: # [0] start address # [1] filename for function we are listing # [2] line number for function we are listing # [3] disassembly # [4] limit address # [5] most specific filename (may be different from [1] due to inlining) # [6] most specific line number (may be different from [2] due to inlining) sub GetTopLevelLineNumbers { my ($lib, $offset, $instructions) = @_; my $pcs = []; for (my $i = 0; $i <= $#{$instructions}; $i++) { push(@{$pcs}, $instructions->[$i]->[0]); } my $symbols = {}; MapToSymbols($lib, $offset, $pcs, $symbols); for (my $i = 0; $i <= $#{$instructions}; $i++) { my $e = $instructions->[$i]; push(@{$e}, $e->[1]); push(@{$e}, $e->[2]); my $addr = $e->[0]; my $sym = $symbols->{$addr}; if (defined($sym)) { if ($#{$sym} >= 2 && $sym->[1] =~ m/^(.*):(\d+)$/) { $e->[1] = $1; # File name $e->[2] = $2; # Line number } } } } # Print source-listing for one routine sub PrintSource { my $prog = shift; my $offset = shift; my $routine = shift; my $flat = shift; my $cumulative = shift; my $start_addr = shift; my $end_addr = shift; my $html = shift; my $output = shift; # Disassemble all instructions (just to get line numbers) my @instructions = Disassemble($prog, $offset, $start_addr, $end_addr); GetTopLevelLineNumbers($prog, $offset, \@instructions); # Hack 1: assume that the first source file encountered in the # disassembly contains the routine my $filename = undef; for (my $i = 0; $i <= $#instructions; $i++) { if ($instructions[$i]->[2] >= 0) { $filename = $instructions[$i]->[1]; last; } } if (!defined($filename)) { print STDERR "no filename found in $routine\n"; return 0; } # Hack 2: assume that the largest line number from $filename is the # end of the procedure. This is typically safe since if P1 contains # an inlined call to P2, then P2 usually occurs earlier in the # source file. If this does not work, we might have to compute a # density profile or just print all regions we find. my $lastline = 0; for (my $i = 0; $i <= $#instructions; $i++) { my $f = $instructions[$i]->[1]; my $l = $instructions[$i]->[2]; if (($f eq $filename) && ($l > $lastline)) { $lastline = $l; } } # Hack 3: assume the first source location from "filename" is the start of # the source code. my $firstline = 1; for (my $i = 0; $i <= $#instructions; $i++) { if ($instructions[$i]->[1] eq $filename) { $firstline = $instructions[$i]->[2]; last; } } # Hack 4: Extend last line forward until its indentation is less than # the indentation we saw on $firstline my $oldlastline = $lastline; { if (!open(FILE, "<$filename")) { print STDERR "$filename: $!\n"; return 0; } my $l = 0; my $first_indentation = -1; while () { s/\r//g; # turn windows-looking lines into unix-looking lines $l++; my $indent = Indentation($_); if ($l >= $firstline) { if ($first_indentation < 0 && $indent >= 0) { $first_indentation = $indent; last if ($first_indentation == 0); } } if ($l >= $lastline && $indent >= 0) { if ($indent >= $first_indentation) { $lastline = $l+1; } else { last; } } } close(FILE); } # Assign all samples to the range $firstline,$lastline, # Hack 4: If an instruction does not occur in the range, its samples # are moved to the next instruction that occurs in the range. my $samples1 = {}; # Map from line number to flat count my $samples2 = {}; # Map from line number to cumulative count my $running1 = 0; # Unassigned flat counts my $running2 = 0; # Unassigned cumulative counts my $total1 = 0; # Total flat counts my $total2 = 0; # Total cumulative counts my %disasm = (); # Map from line number to disassembly my $running_disasm = ""; # Unassigned disassembly my $skip_marker = "---\n"; if ($html) { $skip_marker = ""; for (my $l = $firstline; $l <= $lastline; $l++) { $disasm{$l} = ""; } } my $last_dis_filename = ''; my $last_dis_linenum = -1; my $last_touched_line = -1; # To detect gaps in disassembly for a line foreach my $e (@instructions) { # Add up counts for all address that fall inside this instruction my $c1 = 0; my $c2 = 0; for (my $a = $e->[0]; $a lt $e->[4]; $a = AddressInc($a)) { $c1 += GetEntry($flat, $a); $c2 += GetEntry($cumulative, $a); } if ($html) { my $dis = sprintf(" %6s %6s \t\t%8s: %s ", HtmlPrintNumber($c1), HtmlPrintNumber($c2), UnparseAddress($offset, $e->[0]), CleanDisassembly($e->[3])); # Append the most specific source line associated with this instruction if (length($dis) < 80) { $dis .= (' ' x (80 - length($dis))) }; $dis = HtmlEscape($dis); my $f = $e->[5]; my $l = $e->[6]; if ($f ne $last_dis_filename) { $dis .= sprintf("%s:%d", HtmlEscape(CleanFileName($f)), $l); } elsif ($l ne $last_dis_linenum) { # De-emphasize the unchanged file name portion $dis .= sprintf("%s" . ":%d", HtmlEscape(CleanFileName($f)), $l); } else { # De-emphasize the entire location $dis .= sprintf("%s:%d", HtmlEscape(CleanFileName($f)), $l); } $last_dis_filename = $f; $last_dis_linenum = $l; $running_disasm .= $dis; $running_disasm .= "\n"; } $running1 += $c1; $running2 += $c2; $total1 += $c1; $total2 += $c2; my $file = $e->[1]; my $line = $e->[2]; if (($file eq $filename) && ($line >= $firstline) && ($line <= $lastline)) { # Assign all accumulated samples to this line AddEntry($samples1, $line, $running1); AddEntry($samples2, $line, $running2); $running1 = 0; $running2 = 0; if ($html) { if ($line != $last_touched_line && $disasm{$line} ne '') { $disasm{$line} .= "\n"; } $disasm{$line} .= $running_disasm; $running_disasm = ''; $last_touched_line = $line; } } } # Assign any leftover samples to $lastline AddEntry($samples1, $lastline, $running1); AddEntry($samples2, $lastline, $running2); if ($html) { if ($lastline != $last_touched_line && $disasm{$lastline} ne '') { $disasm{$lastline} .= "\n"; } $disasm{$lastline} .= $running_disasm; } if ($html) { printf $output ( "

%s

%s\n
\n" .
      "Total:%6s %6s (flat / cumulative %s)\n",
      HtmlEscape(ShortFunctionName($routine)),
      HtmlEscape(CleanFileName($filename)),
      Unparse($total1),
      Unparse($total2),
      Units());
  } else {
    printf $output (
      "ROUTINE ====================== %s in %s\n" .
      "%6s %6s Total %s (flat / cumulative)\n",
      ShortFunctionName($routine),
      CleanFileName($filename),
      Unparse($total1),
      Unparse($total2),
      Units());
  }
  if (!open(FILE, "<$filename")) {
    print STDERR "$filename: $!\n";
    return 0;
  }
  my $l = 0;
  while () {
    s/\r//g;         # turn windows-looking lines into unix-looking lines
    $l++;
    if ($l >= $firstline - 5 &&
        (($l <= $oldlastline + 5) || ($l <= $lastline))) {
      chop;
      my $text = $_;
      if ($l == $firstline) { print $output $skip_marker; }
      my $n1 = GetEntry($samples1, $l);
      my $n2 = GetEntry($samples2, $l);
      if ($html) {
        # Emit a span that has one of the following classes:
        #    livesrc -- has samples
        #    deadsrc -- has disassembly, but with no samples
        #    nop     -- has no matching disasembly
        # Also emit an optional span containing disassembly.
        my $dis = $disasm{$l};
        my $asm = "";
        if (defined($dis) && $dis ne '') {
          $asm = "" . $dis . "";
        }
        my $source_class = (($n1 + $n2 > 0) 
                            ? "livesrc" 
                            : (($asm ne "") ? "deadsrc" : "nop"));
        printf $output (
          "%5d " .
          "%6s %6s %s%s\n",
          $l, $source_class,
          HtmlPrintNumber($n1),
          HtmlPrintNumber($n2),
          HtmlEscape($text),
          $asm);
      } else {
        printf $output(
          "%6s %6s %4d: %s\n",
          UnparseAlt($n1),
          UnparseAlt($n2),
          $l,
          $text);
      }
      if ($l == $lastline)  { print $output $skip_marker; }
    };
  }
  close(FILE);
  if ($html) {
    print $output "
\n"; } return 1; } # Return the source line for the specified file/linenumber. # Returns undef if not found. sub SourceLine { my $file = shift; my $line = shift; # Look in cache if (!defined($main::source_cache{$file})) { if (100 < scalar keys(%main::source_cache)) { # Clear the cache when it gets too big $main::source_cache = (); } # Read all lines from the file if (!open(FILE, "<$file")) { print STDERR "$file: $!\n"; $main::source_cache{$file} = []; # Cache the negative result return undef; } my $lines = []; push(@{$lines}, ""); # So we can use 1-based line numbers as indices while () { push(@{$lines}, $_); } close(FILE); # Save the lines in the cache $main::source_cache{$file} = $lines; } my $lines = $main::source_cache{$file}; if (($line < 0) || ($line > $#{$lines})) { return undef; } else { return $lines->[$line]; } } # Print disassembly for one routine with interspersed source if available sub PrintDisassembledFunction { my $prog = shift; my $offset = shift; my $routine = shift; my $flat = shift; my $cumulative = shift; my $start_addr = shift; my $end_addr = shift; my $total = shift; # Disassemble all instructions my @instructions = Disassemble($prog, $offset, $start_addr, $end_addr); # Make array of counts per instruction my @flat_count = (); my @cum_count = (); my $flat_total = 0; my $cum_total = 0; foreach my $e (@instructions) { # Add up counts for all address that fall inside this instruction my $c1 = 0; my $c2 = 0; for (my $a = $e->[0]; $a lt $e->[4]; $a = AddressInc($a)) { $c1 += GetEntry($flat, $a); $c2 += GetEntry($cumulative, $a); } push(@flat_count, $c1); push(@cum_count, $c2); $flat_total += $c1; $cum_total += $c2; } # Print header with total counts printf("ROUTINE ====================== %s\n" . "%6s %6s %s (flat, cumulative) %.1f%% of total\n", ShortFunctionName($routine), Unparse($flat_total), Unparse($cum_total), Units(), ($cum_total * 100.0) / $total); # Process instructions in order my $current_file = ""; for (my $i = 0; $i <= $#instructions; ) { my $e = $instructions[$i]; # Print the new file name whenever we switch files if ($e->[1] ne $current_file) { $current_file = $e->[1]; my $fname = $current_file; $fname =~ s|^\./||; # Trim leading "./" # Shorten long file names if (length($fname) >= 58) { $fname = "..." . substr($fname, -55); } printf("-------------------- %s\n", $fname); } # TODO: Compute range of lines to print together to deal with # small reorderings. my $first_line = $e->[2]; my $last_line = $first_line; my %flat_sum = (); my %cum_sum = (); for (my $l = $first_line; $l <= $last_line; $l++) { $flat_sum{$l} = 0; $cum_sum{$l} = 0; } # Find run of instructions for this range of source lines my $first_inst = $i; while (($i <= $#instructions) && ($instructions[$i]->[2] >= $first_line) && ($instructions[$i]->[2] <= $last_line)) { $e = $instructions[$i]; $flat_sum{$e->[2]} += $flat_count[$i]; $cum_sum{$e->[2]} += $cum_count[$i]; $i++; } my $last_inst = $i - 1; # Print source lines for (my $l = $first_line; $l <= $last_line; $l++) { my $line = SourceLine($current_file, $l); if (!defined($line)) { $line = "?\n"; next; } else { $line =~ s/^\s+//; } printf("%6s %6s %5d: %s", UnparseAlt($flat_sum{$l}), UnparseAlt($cum_sum{$l}), $l, $line); } # Print disassembly for (my $x = $first_inst; $x <= $last_inst; $x++) { my $e = $instructions[$x]; printf("%6s %6s %8s: %6s\n", UnparseAlt($flat_count[$x]), UnparseAlt($cum_count[$x]), UnparseAddress($offset, $e->[0]), CleanDisassembly($e->[3])); } } } # Print DOT graph sub PrintDot { my $prog = shift; my $symbols = shift; my $raw = shift; my $flat = shift; my $cumulative = shift; my $overall_total = shift; # Get total my $local_total = TotalProfile($flat); my $nodelimit = int($main::opt_nodefraction * $local_total); my $edgelimit = int($main::opt_edgefraction * $local_total); my $nodecount = $main::opt_nodecount; # Find nodes to include my @list = (sort { abs(GetEntry($cumulative, $b)) <=> abs(GetEntry($cumulative, $a)) || $a cmp $b } keys(%{$cumulative})); my $last = $nodecount - 1; if ($last > $#list) { $last = $#list; } while (($last >= 0) && (abs(GetEntry($cumulative, $list[$last])) <= $nodelimit)) { $last--; } if ($last < 0) { print STDERR "No nodes to print\n"; return 0; } if ($nodelimit > 0 || $edgelimit > 0) { printf STDERR ("Dropping nodes with <= %s %s; edges with <= %s abs(%s)\n", Unparse($nodelimit), Units(), Unparse($edgelimit), Units()); } # Open DOT output file my $output; my $escaped_dot = ShellEscape(@DOT); my $escaped_ps2pdf = ShellEscape(@PS2PDF); if ($main::opt_gv) { my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "ps")); $output = "| $escaped_dot -Tps2 >$escaped_outfile"; } elsif ($main::opt_evince) { my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "pdf")); $output = "| $escaped_dot -Tps2 | $escaped_ps2pdf - $escaped_outfile"; } elsif ($main::opt_ps) { $output = "| $escaped_dot -Tps2"; } elsif ($main::opt_pdf) { $output = "| $escaped_dot -Tps2 | $escaped_ps2pdf - -"; } elsif ($main::opt_web || $main::opt_svg) { # We need to post-process the SVG, so write to a temporary file always. my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "svg")); $output = "| $escaped_dot -Tsvg >$escaped_outfile"; } elsif ($main::opt_gif) { $output = "| $escaped_dot -Tgif"; } else { $output = ">&STDOUT"; } open(DOT, $output) || error("$output: $!\n"); # Title printf DOT ("digraph \"%s; %s %s\" {\n", $prog, Unparse($overall_total), Units()); if ($main::opt_pdf) { # The output is more printable if we set the page size for dot. printf DOT ("size=\"8,11\"\n"); } printf DOT ("node [width=0.375,height=0.25];\n"); # Print legend printf DOT ("Legend [shape=box,fontsize=24,shape=plaintext," . "label=\"%s\\l%s\\l%s\\l%s\\l%s\\l\"];\n", $prog, sprintf("Total %s: %s", Units(), Unparse($overall_total)), sprintf("Focusing on: %s", Unparse($local_total)), sprintf("Dropped nodes with <= %s abs(%s)", Unparse($nodelimit), Units()), sprintf("Dropped edges with <= %s %s", Unparse($edgelimit), Units()) ); # Print nodes my %node = (); my $nextnode = 1; foreach my $a (@list[0..$last]) { # Pick font size my $f = GetEntry($flat, $a); my $c = GetEntry($cumulative, $a); my $fs = 8; if ($local_total > 0) { $fs = 8 + (50.0 * sqrt(abs($f * 1.0 / $local_total))); } $node{$a} = $nextnode++; my $sym = $a; $sym =~ s/\s+/\\n/g; $sym =~ s/::/\\n/g; # Extra cumulative info to print for non-leaves my $extra = ""; if ($f != $c) { $extra = sprintf("\\rof %s (%s)", Unparse($c), Percent($c, $local_total)); } my $style = ""; if ($main::opt_heapcheck) { if ($f > 0) { # make leak-causing nodes more visible (add a background) $style = ",style=filled,fillcolor=gray" } elsif ($f < 0) { # make anti-leak-causing nodes (which almost never occur) # stand out as well (triple border) $style = ",peripheries=3" } } printf DOT ("N%d [label=\"%s\\n%s (%s)%s\\r" . "\",shape=box,fontsize=%.1f%s];\n", $node{$a}, $sym, Unparse($f), Percent($f, $local_total), $extra, $fs, $style, ); } # Get edges and counts per edge my %edge = (); my $n; my $fullname_to_shortname_map = {}; FillFullnameToShortnameMap($symbols, $fullname_to_shortname_map); foreach my $k (keys(%{$raw})) { # TODO: omit low %age edges $n = $raw->{$k}; my @translated = TranslateStack($symbols, $fullname_to_shortname_map, $k); for (my $i = 1; $i <= $#translated; $i++) { my $src = $translated[$i]; my $dst = $translated[$i-1]; #next if ($src eq $dst); # Avoid self-edges? if (exists($node{$src}) && exists($node{$dst})) { my $edge_label = "$src\001$dst"; if (!exists($edge{$edge_label})) { $edge{$edge_label} = 0; } $edge{$edge_label} += $n; } } } # Print edges (process in order of decreasing counts) my %indegree = (); # Number of incoming edges added per node so far my %outdegree = (); # Number of outgoing edges added per node so far foreach my $e (sort { $edge{$b} <=> $edge{$a} } keys(%edge)) { my @x = split(/\001/, $e); $n = $edge{$e}; # Initialize degree of kept incoming and outgoing edges if necessary my $src = $x[0]; my $dst = $x[1]; if (!exists($outdegree{$src})) { $outdegree{$src} = 0; } if (!exists($indegree{$dst})) { $indegree{$dst} = 0; } my $keep; if ($indegree{$dst} == 0) { # Keep edge if needed for reachability $keep = 1; } elsif (abs($n) <= $edgelimit) { # Drop if we are below --edgefraction $keep = 0; } elsif ($outdegree{$src} >= $main::opt_maxdegree || $indegree{$dst} >= $main::opt_maxdegree) { # Keep limited number of in/out edges per node $keep = 0; } else { $keep = 1; } if ($keep) { $outdegree{$src}++; $indegree{$dst}++; # Compute line width based on edge count my $fraction = abs($local_total ? (3 * ($n / $local_total)) : 0); if ($fraction > 1) { $fraction = 1; } my $w = $fraction * 2; if ($w < 1 && ($main::opt_web || $main::opt_svg)) { # SVG output treats line widths < 1 poorly. $w = 1; } # Dot sometimes segfaults if given edge weights that are too large, so # we cap the weights at a large value my $edgeweight = abs($n) ** 0.7; if ($edgeweight > 100000) { $edgeweight = 100000; } $edgeweight = int($edgeweight); my $style = sprintf("setlinewidth(%f)", $w); if ($x[1] =~ m/\(inline\)/) { $style .= ",dashed"; } # Use a slightly squashed function of the edge count as the weight printf DOT ("N%s -> N%s [label=%s, weight=%d, style=\"%s\"];\n", $node{$x[0]}, $node{$x[1]}, Unparse($n), $edgeweight, $style); } } print DOT ("}\n"); close(DOT); if ($main::opt_web || $main::opt_svg) { # Rewrite SVG to be more usable inside web browser. RewriteSvg(TempName($main::next_tmpfile, "svg")); } return 1; } sub RewriteSvg { my $svgfile = shift; open(SVG, $svgfile) || die "open temp svg: $!"; my @svg = ; close(SVG); unlink $svgfile; my $svg = join('', @svg); # Dot's SVG output is # # # # ... # # # # Change it to # # # $svg_javascript # # # ... # # # # Fix width, height; drop viewBox. $svg =~ s/(?s) above first my $svg_javascript = SvgJavascript(); my $viewport = "\n"; $svg =~ s/ above . $svg =~ s/(.*)(<\/svg>)/$1<\/g>$2/; $svg =~ s/$svgfile") || die "open $svgfile: $!"; print SVG $svg; close(SVG); } } sub SvgJavascript { return <<'EOF'; EOF } # Provides a map from fullname to shortname for cases where the # shortname is ambiguous. The symlist has both the fullname and # shortname for all symbols, which is usually fine, but sometimes -- # such as overloaded functions -- two different fullnames can map to # the same shortname. In that case, we use the address of the # function to disambiguate the two. This function fills in a map that # maps fullnames to modified shortnames in such cases. If a fullname # is not present in the map, the 'normal' shortname provided by the # symlist is the appropriate one to use. sub FillFullnameToShortnameMap { my $symbols = shift; my $fullname_to_shortname_map = shift; my $shortnames_seen_once = {}; my $shortnames_seen_more_than_once = {}; foreach my $symlist (values(%{$symbols})) { # TODO(csilvers): deal with inlined symbols too. my $shortname = $symlist->[0]; my $fullname = $symlist->[2]; if ($fullname !~ /<[0-9a-fA-F]+>$/) { # fullname doesn't end in an address next; # the only collisions we care about are when addresses differ } if (defined($shortnames_seen_once->{$shortname}) && $shortnames_seen_once->{$shortname} ne $fullname) { $shortnames_seen_more_than_once->{$shortname} = 1; } else { $shortnames_seen_once->{$shortname} = $fullname; } } foreach my $symlist (values(%{$symbols})) { my $shortname = $symlist->[0]; my $fullname = $symlist->[2]; # TODO(csilvers): take in a list of addresses we care about, and only # store in the map if $symlist->[1] is in that list. Saves space. next if defined($fullname_to_shortname_map->{$fullname}); if (defined($shortnames_seen_more_than_once->{$shortname})) { if ($fullname =~ /<0*([^>]*)>$/) { # fullname has address at end of it $fullname_to_shortname_map->{$fullname} = "$shortname\@$1"; } } } } # Return a small number that identifies the argument. # Multiple calls with the same argument will return the same number. # Calls with different arguments will return different numbers. sub ShortIdFor { my $key = shift; my $id = $main::uniqueid{$key}; if (!defined($id)) { $id = keys(%main::uniqueid) + 1; $main::uniqueid{$key} = $id; } return $id; } # Translate a stack of addresses into a stack of symbols sub TranslateStack { my $symbols = shift; my $fullname_to_shortname_map = shift; my $k = shift; my @addrs = split(/\n/, $k); my @result = (); for (my $i = 0; $i <= $#addrs; $i++) { my $a = $addrs[$i]; # Skip large addresses since they sometimes show up as fake entries on RH9 if (length($a) > 8 && $a gt "7fffffffffffffff") { next; } if ($main::opt_disasm || $main::opt_list) { # We want just the address for the key push(@result, $a); next; } my $symlist = $symbols->{$a}; if (!defined($symlist)) { $symlist = [$a, "", $a]; } # We can have a sequence of symbols for a particular entry # (more than one symbol in the case of inlining). Callers # come before callees in symlist, so walk backwards since # the translated stack should contain callees before callers. for (my $j = $#{$symlist}; $j >= 2; $j -= 3) { my $func = $symlist->[$j-2]; my $fileline = $symlist->[$j-1]; my $fullfunc = $symlist->[$j]; if (defined($fullname_to_shortname_map->{$fullfunc})) { $func = $fullname_to_shortname_map->{$fullfunc}; } if ($j > 2) { $func = "$func (inline)"; } # Do not merge nodes corresponding to Callback::Run since that # causes confusing cycles in dot display. Instead, we synthesize # a unique name for this frame per caller. if ($func =~ m/Callback.*::Run$/) { my $caller = ($i > 0) ? $addrs[$i-1] : 0; $func = "Run#" . ShortIdFor($caller); } if ($main::opt_addresses) { push(@result, "$a $func $fileline"); } elsif ($main::opt_lines) { if ($func eq '??' && $fileline eq '??:0') { push(@result, "$a"); } else { push(@result, "$func $fileline"); } } elsif ($main::opt_functions) { if ($func eq '??') { push(@result, "$a"); } else { push(@result, $func); } } elsif ($main::opt_files) { if ($fileline eq '??:0' || $fileline eq '') { push(@result, "$a"); } else { my $f = $fileline; $f =~ s/:\d+$//; push(@result, $f); } } else { push(@result, $a); last; # Do not print inlined info } } } # print join(",", @addrs), " => ", join(",", @result), "\n"; return @result; } # Generate percent string for a number and a total sub Percent { my $num = shift; my $tot = shift; if ($tot != 0) { return sprintf("%.1f%%", $num * 100.0 / $tot); } else { return ($num == 0) ? "nan" : (($num > 0) ? "+inf" : "-inf"); } } # Generate pretty-printed form of number sub Unparse { my $num = shift; if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') { if ($main::opt_inuse_objects || $main::opt_alloc_objects) { return sprintf("%d", $num); } else { if ($main::opt_show_bytes) { return sprintf("%d", $num); } else { return sprintf("%.1f", $num / 1048576.0); } } } elsif ($main::profile_type eq 'contention' && !$main::opt_contentions) { return sprintf("%.3f", $num / 1e9); # Convert nanoseconds to seconds } else { return sprintf("%d", $num); } } # Alternate pretty-printed form: 0 maps to "." sub UnparseAlt { my $num = shift; if ($num == 0) { return "."; } else { return Unparse($num); } } # Alternate pretty-printed form: 0 maps to "" sub HtmlPrintNumber { my $num = shift; if ($num == 0) { return ""; } else { return Unparse($num); } } # Return output units sub Units { if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') { if ($main::opt_inuse_objects || $main::opt_alloc_objects) { return "objects"; } else { if ($main::opt_show_bytes) { return "B"; } else { return "MB"; } } } elsif ($main::profile_type eq 'contention' && !$main::opt_contentions) { return "seconds"; } else { return "samples"; } } ##### Profile manipulation code ##### # Generate flattened profile: # If count is charged to stack [a,b,c,d], in generated profile, # it will be charged to [a] sub FlatProfile { my $profile = shift; my $result = {}; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); if ($#addrs >= 0) { AddEntry($result, $addrs[0], $count); } } return $result; } # Generate cumulative profile: # If count is charged to stack [a,b,c,d], in generated profile, # it will be charged to [a], [b], [c], [d] sub CumulativeProfile { my $profile = shift; my $result = {}; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); foreach my $a (@addrs) { AddEntry($result, $a, $count); } } return $result; } # If the second-youngest PC on the stack is always the same, returns # that pc. Otherwise, returns undef. sub IsSecondPcAlwaysTheSame { my $profile = shift; my $second_pc = undef; foreach my $k (keys(%{$profile})) { my @addrs = split(/\n/, $k); if ($#addrs < 1) { return undef; } if (not defined $second_pc) { $second_pc = $addrs[1]; } else { if ($second_pc ne $addrs[1]) { return undef; } } } return $second_pc; } sub ExtractSymbolLocation { my $symbols = shift; my $address = shift; # 'addr2line' outputs "??:0" for unknown locations; we do the # same to be consistent. my $location = "??:0:unknown"; if (exists $symbols->{$address}) { my $file = $symbols->{$address}->[1]; if ($file eq "?") { $file = "??:0" } $location = $file . ":" . $symbols->{$address}->[0]; } return $location; } # Extracts a graph of calls. sub ExtractCalls { my $symbols = shift; my $profile = shift; my $calls = {}; while( my ($stack_trace, $count) = each %$profile ) { my @address = split(/\n/, $stack_trace); my $destination = ExtractSymbolLocation($symbols, $address[0]); AddEntry($calls, $destination, $count); for (my $i = 1; $i <= $#address; $i++) { my $source = ExtractSymbolLocation($symbols, $address[$i]); my $call = "$source -> $destination"; AddEntry($calls, $call, $count); $destination = $source; } } return $calls; } sub RemoveUninterestingFrames { my $symbols = shift; my $profile = shift; # List of function names to skip my %skip = (); my $skip_regexp = 'NOMATCH'; if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') { foreach my $name ('calloc', 'cfree', 'malloc', 'free', 'memalign', 'posix_memalign', 'pvalloc', 'valloc', 'realloc', 'tc_calloc', 'tc_cfree', 'tc_malloc', 'tc_free', 'tc_memalign', 'tc_posix_memalign', 'tc_pvalloc', 'tc_valloc', 'tc_realloc', 'tc_new', 'tc_delete', 'tc_newarray', 'tc_deletearray', 'tc_new_nothrow', 'tc_newarray_nothrow', 'do_malloc', '::do_malloc', # new name -- got moved to an unnamed ns '::do_malloc_or_cpp_alloc', 'DoSampledAllocation', 'simple_alloc::allocate', '__malloc_alloc_template::allocate', '__builtin_delete', '__builtin_new', '__builtin_vec_delete', '__builtin_vec_new', 'operator new', 'operator new[]', # The entry to our memory-allocation routines on OS X 'malloc_zone_malloc', 'malloc_zone_calloc', 'malloc_zone_valloc', 'malloc_zone_realloc', 'malloc_zone_memalign', 'malloc_zone_free', # These mark the beginning/end of our custom sections '__start_google_malloc', '__stop_google_malloc', '__start_malloc_hook', '__stop_malloc_hook') { $skip{$name} = 1; $skip{"_" . $name} = 1; # Mach (OS X) adds a _ prefix to everything } # TODO: Remove TCMalloc once everything has been # moved into the tcmalloc:: namespace and we have flushed # old code out of the system. $skip_regexp = "TCMalloc|^tcmalloc::"; } elsif ($main::profile_type eq 'contention') { foreach my $vname ('base::RecordLockProfileData', 'base::SubmitMutexProfileData', 'base::SubmitSpinLockProfileData', 'Mutex::Unlock', 'Mutex::UnlockSlow', 'Mutex::ReaderUnlock', 'MutexLock::~MutexLock', 'SpinLock::Unlock', 'SpinLock::SlowUnlock', 'SpinLockHolder::~SpinLockHolder') { $skip{$vname} = 1; } } elsif ($main::profile_type eq 'cpu') { # Drop signal handlers used for CPU profile collection # TODO(dpeng): this should not be necessary; it's taken # care of by the general 2nd-pc mechanism below. foreach my $name ('ProfileData::Add', # historical 'ProfileData::prof_handler', # historical 'CpuProfiler::prof_handler', '__FRAME_END__', '__pthread_sighandler', '__restore') { $skip{$name} = 1; } } else { # Nothing skipped for unknown types } if ($main::profile_type eq 'cpu') { # If all the second-youngest program counters are the same, # this STRONGLY suggests that it is an artifact of measurement, # i.e., stack frames pushed by the CPU profiler signal handler. # Hence, we delete them. # (The topmost PC is read from the signal structure, not from # the stack, so it does not get involved.) while (my $second_pc = IsSecondPcAlwaysTheSame($profile)) { my $result = {}; my $func = ''; if (exists($symbols->{$second_pc})) { $second_pc = $symbols->{$second_pc}->[0]; } print STDERR "Removing $second_pc from all stack traces.\n"; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); splice @addrs, 1, 1; my $reduced_path = join("\n", @addrs); AddEntry($result, $reduced_path, $count); } $profile = $result; } } my $result = {}; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); my @path = (); foreach my $a (@addrs) { if (exists($symbols->{$a})) { my $func = $symbols->{$a}->[0]; if ($skip{$func} || ($func =~ m/$skip_regexp/)) { next; } } push(@path, $a); } my $reduced_path = join("\n", @path); AddEntry($result, $reduced_path, $count); } return $result; } # Reduce profile to granularity given by user sub ReduceProfile { my $symbols = shift; my $profile = shift; my $result = {}; my $fullname_to_shortname_map = {}; FillFullnameToShortnameMap($symbols, $fullname_to_shortname_map); foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @translated = TranslateStack($symbols, $fullname_to_shortname_map, $k); my @path = (); my %seen = (); $seen{''} = 1; # So that empty keys are skipped foreach my $e (@translated) { # To avoid double-counting due to recursion, skip a stack-trace # entry if it has already been seen if (!$seen{$e}) { $seen{$e} = 1; push(@path, $e); } } my $reduced_path = join("\n", @path); AddEntry($result, $reduced_path, $count); } return $result; } # Does the specified symbol array match the regexp? sub SymbolMatches { my $sym = shift; my $re = shift; if (defined($sym)) { for (my $i = 0; $i < $#{$sym}; $i += 3) { if ($sym->[$i] =~ m/$re/ || $sym->[$i+1] =~ m/$re/) { return 1; } } } return 0; } # Focus only on paths involving specified regexps sub FocusProfile { my $symbols = shift; my $profile = shift; my $focus = shift; my $result = {}; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); foreach my $a (@addrs) { # Reply if it matches either the address/shortname/fileline if (($a =~ m/$focus/) || SymbolMatches($symbols->{$a}, $focus)) { AddEntry($result, $k, $count); last; } } } return $result; } # Focus only on paths not involving specified regexps sub IgnoreProfile { my $symbols = shift; my $profile = shift; my $ignore = shift; my $result = {}; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); my $matched = 0; foreach my $a (@addrs) { # Reply if it matches either the address/shortname/fileline if (($a =~ m/$ignore/) || SymbolMatches($symbols->{$a}, $ignore)) { $matched = 1; last; } } if (!$matched) { AddEntry($result, $k, $count); } } return $result; } # Get total count in profile sub TotalProfile { my $profile = shift; my $result = 0; foreach my $k (keys(%{$profile})) { $result += $profile->{$k}; } return $result; } # Add A to B sub AddProfile { my $A = shift; my $B = shift; my $R = {}; # add all keys in A foreach my $k (keys(%{$A})) { my $v = $A->{$k}; AddEntry($R, $k, $v); } # add all keys in B foreach my $k (keys(%{$B})) { my $v = $B->{$k}; AddEntry($R, $k, $v); } return $R; } # Merges symbol maps sub MergeSymbols { my $A = shift; my $B = shift; my $R = {}; foreach my $k (keys(%{$A})) { $R->{$k} = $A->{$k}; } if (defined($B)) { foreach my $k (keys(%{$B})) { $R->{$k} = $B->{$k}; } } return $R; } # Add A to B sub AddPcs { my $A = shift; my $B = shift; my $R = {}; # add all keys in A foreach my $k (keys(%{$A})) { $R->{$k} = 1 } # add all keys in B foreach my $k (keys(%{$B})) { $R->{$k} = 1 } return $R; } # Subtract B from A sub SubtractProfile { my $A = shift; my $B = shift; my $R = {}; foreach my $k (keys(%{$A})) { my $v = $A->{$k} - GetEntry($B, $k); if ($v < 0 && $main::opt_drop_negative) { $v = 0; } AddEntry($R, $k, $v); } if (!$main::opt_drop_negative) { # Take care of when subtracted profile has more entries foreach my $k (keys(%{$B})) { if (!exists($A->{$k})) { AddEntry($R, $k, 0 - $B->{$k}); } } } return $R; } # Get entry from profile; zero if not present sub GetEntry { my $profile = shift; my $k = shift; if (exists($profile->{$k})) { return $profile->{$k}; } else { return 0; } } # Add entry to specified profile sub AddEntry { my $profile = shift; my $k = shift; my $n = shift; if (!exists($profile->{$k})) { $profile->{$k} = 0; } $profile->{$k} += $n; } # Add a stack of entries to specified profile, and add them to the $pcs # list. sub AddEntries { my $profile = shift; my $pcs = shift; my $stack = shift; my $count = shift; my @k = (); foreach my $e (split(/\s+/, $stack)) { my $pc = HexExtend($e); $pcs->{$pc} = 1; push @k, $pc; } AddEntry($profile, (join "\n", @k), $count); } ##### Code to profile a server dynamically ##### sub CheckSymbolPage { my $url = SymbolPageURL(); my $command = ShellEscape(@URL_FETCHER, $url); open(SYMBOL, "$command |") or error($command); my $line = ; $line =~ s/\r//g; # turn windows-looking lines into unix-looking lines close(SYMBOL); unless (defined($line)) { error("$url doesn't exist\n"); } if ($line =~ /^num_symbols:\s+(\d+)$/) { if ($1 == 0) { error("Stripped binary. No symbols available.\n"); } } else { error("Failed to get the number of symbols from $url\n"); } } sub IsProfileURL { my $profile_name = shift; if (-f $profile_name) { printf STDERR "Using local file $profile_name.\n"; return 0; } return 1; } sub ParseProfileURL { my $profile_name = shift; if (!defined($profile_name) || $profile_name eq "") { return (); } # Split profile URL - matches all non-empty strings, so no test. $profile_name =~ m,^(https?://)?([^/]+)(.*?)(/|$PROFILES)?$,; my $proto = $1 || "http://"; my $hostport = $2; my $prefix = $3; my $profile = $4 || "/"; my $host = $hostport; $host =~ s/:.*//; my $baseurl = "$proto$hostport$prefix"; return ($host, $baseurl, $profile); } # We fetch symbols from the first profile argument. sub SymbolPageURL { my ($host, $baseURL, $path) = ParseProfileURL($main::pfile_args[0]); return "$baseURL$SYMBOL_PAGE"; } sub FetchProgramName() { my ($host, $baseURL, $path) = ParseProfileURL($main::pfile_args[0]); my $url = "$baseURL$PROGRAM_NAME_PAGE"; my $command_line = ShellEscape(@URL_FETCHER, $url); open(CMDLINE, "$command_line |") or error($command_line); my $cmdline = ; $cmdline =~ s/\r//g; # turn windows-looking lines into unix-looking lines close(CMDLINE); error("Failed to get program name from $url\n") unless defined($cmdline); $cmdline =~ s/\x00.+//; # Remove argv[1] and latters. $cmdline =~ s!\n!!g; # Remove LFs. return $cmdline; } # Gee, curl's -L (--location) option isn't reliable at least # with its 7.12.3 version. Curl will forget to post data if # there is a redirection. This function is a workaround for # curl. Redirection happens on borg hosts. sub ResolveRedirectionForCurl { my $url = shift; my $command_line = ShellEscape(@URL_FETCHER, "--head", $url); open(CMDLINE, "$command_line |") or error($command_line); while () { s/\r//g; # turn windows-looking lines into unix-looking lines if (/^Location: (.*)/) { $url = $1; } } close(CMDLINE); return $url; } # Add a timeout flat to URL_FETCHER. Returns a new list. sub AddFetchTimeout { my $timeout = shift; my @fetcher = shift; if (defined($timeout)) { if (join(" ", @fetcher) =~ m/\bcurl -s/) { push(@fetcher, "--max-time", sprintf("%d", $timeout)); } elsif (join(" ", @fetcher) =~ m/\brpcget\b/) { push(@fetcher, sprintf("--deadline=%d", $timeout)); } } return @fetcher; } # Reads a symbol map from the file handle name given as $1, returning # the resulting symbol map. Also processes variables relating to symbols. # Currently, the only variable processed is 'binary=' which updates # $main::prog to have the correct program name. sub ReadSymbols { my $in = shift; my $map = {}; while (<$in>) { s/\r//g; # turn windows-looking lines into unix-looking lines # Removes all the leading zeroes from the symbols, see comment below. if (m/^0x0*([0-9a-f]+)\s+(.+)/) { $map->{$1} = $2; } elsif (m/^---/) { last; } elsif (m/^([a-z][^=]*)=(.*)$/ ) { my ($variable, $value) = ($1, $2); for ($variable, $value) { s/^\s+//; s/\s+$//; } if ($variable eq "binary") { if ($main::prog ne $UNKNOWN_BINARY && $main::prog ne $value) { printf STDERR ("Warning: Mismatched binary name '%s', using '%s'.\n", $main::prog, $value); } $main::prog = $value; } else { printf STDERR ("Ignoring unknown variable in symbols list: " . "'%s' = '%s'\n", $variable, $value); } } } return $map; } # Fetches and processes symbols to prepare them for use in the profile output # code. If the optional 'symbol_map' arg is not given, fetches symbols from # $SYMBOL_PAGE for all PC values found in profile. Otherwise, the raw symbols # are assumed to have already been fetched into 'symbol_map' and are simply # extracted and processed. sub FetchSymbols { my $pcset = shift; my $symbol_map = shift; my %seen = (); my @pcs = grep { !$seen{$_}++ } keys(%$pcset); # uniq if (!defined($symbol_map)) { my $post_data = join("+", sort((map {"0x" . "$_"} @pcs))); open(POSTFILE, ">$main::tmpfile_sym"); print POSTFILE $post_data; close(POSTFILE); my $url = SymbolPageURL(); my $command_line; if (join(" ", @URL_FETCHER) =~ m/\bcurl -s/) { $url = ResolveRedirectionForCurl($url); $command_line = ShellEscape(@URL_FETCHER, "-d", "\@$main::tmpfile_sym", $url); } else { $command_line = (ShellEscape(@URL_FETCHER, "--post", $url) . " < " . ShellEscape($main::tmpfile_sym)); } # We use c++filt in case $SYMBOL_PAGE gives us mangled symbols. my $escaped_cppfilt = ShellEscape($obj_tool_map{"c++filt"}); open(SYMBOL, "$command_line | $escaped_cppfilt |") or error($command_line); $symbol_map = ReadSymbols(*SYMBOL{IO}); close(SYMBOL); } my $symbols = {}; foreach my $pc (@pcs) { my $fullname; # For 64 bits binaries, symbols are extracted with 8 leading zeroes. # Then /symbol reads the long symbols in as uint64, and outputs # the result with a "0x%08llx" format which get rid of the zeroes. # By removing all the leading zeroes in both $pc and the symbols from # /symbol, the symbols match and are retrievable from the map. my $shortpc = $pc; $shortpc =~ s/^0*//; # Each line may have a list of names, which includes the function # and also other functions it has inlined. They are separated (in # PrintSymbolizedProfile), by --, which is illegal in function names. my $fullnames; if (defined($symbol_map->{$shortpc})) { $fullnames = $symbol_map->{$shortpc}; } else { $fullnames = "0x" . $pc; # Just use addresses } my $sym = []; $symbols->{$pc} = $sym; foreach my $fullname (split("--", $fullnames)) { my $name = ShortFunctionName($fullname); push(@{$sym}, $name, "?", $fullname); } } return $symbols; } sub BaseName { my $file_name = shift; $file_name =~ s!^.*/!!; # Remove directory name return $file_name; } sub MakeProfileBaseName { my ($binary_name, $profile_name) = @_; my ($host, $baseURL, $path) = ParseProfileURL($profile_name); my $binary_shortname = BaseName($binary_name); return sprintf("%s.%s.%s", $binary_shortname, $main::op_time, $host); } sub FetchDynamicProfile { my $binary_name = shift; my $profile_name = shift; my $fetch_name_only = shift; my $encourage_patience = shift; if (!IsProfileURL($profile_name)) { return $profile_name; } else { my ($host, $baseURL, $path) = ParseProfileURL($profile_name); if ($path eq "" || $path eq "/") { # Missing type specifier defaults to cpu-profile $path = $PROFILE_PAGE; } my $profile_file = MakeProfileBaseName($binary_name, $profile_name); my $url = "$baseURL$path"; my $fetch_timeout = undef; if ($path =~ m/$PROFILE_PAGE|$PMUPROFILE_PAGE/) { if ($path =~ m/[?]/) { $url .= "&"; } else { $url .= "?"; } $url .= sprintf("seconds=%d", $main::opt_seconds); $fetch_timeout = $main::opt_seconds * 1.01 + 60; } else { # For non-CPU profiles, we add a type-extension to # the target profile file name. my $suffix = $path; $suffix =~ s,/,.,g; $profile_file .= $suffix; } my $profile_dir = $ENV{"PPROF_TMPDIR"} || ($ENV{HOME} . "/pprof"); if (! -d $profile_dir) { mkdir($profile_dir) || die("Unable to create profile directory $profile_dir: $!\n"); } my $tmp_profile = "$profile_dir/.tmp.$profile_file"; my $real_profile = "$profile_dir/$profile_file"; if ($fetch_name_only > 0) { return $real_profile; } my @fetcher = AddFetchTimeout($fetch_timeout, @URL_FETCHER); my $cmd = ShellEscape(@fetcher, $url) . " > " . ShellEscape($tmp_profile); if ($path =~ m/$PROFILE_PAGE|$PMUPROFILE_PAGE|$CENSUSPROFILE_PAGE/){ print STDERR "Gathering CPU profile from $url for $main::opt_seconds seconds to\n ${real_profile}\n"; if ($encourage_patience) { print STDERR "Be patient...\n"; } } else { print STDERR "Fetching $path profile from $url to\n ${real_profile}\n"; } (system($cmd) == 0) || error("Failed to get profile: $cmd: $!\n"); (system("mv", $tmp_profile, $real_profile) == 0) || error("Unable to rename profile\n"); print STDERR "Wrote profile to $real_profile\n"; $main::collected_profile = $real_profile; return $main::collected_profile; } } # Collect profiles in parallel sub FetchDynamicProfiles { my $items = scalar(@main::pfile_args); my $levels = log($items) / log(2); if ($items == 1) { $main::profile_files[0] = FetchDynamicProfile($main::prog, $main::pfile_args[0], 0, 1); } else { # math rounding issues if ((2 ** $levels) < $items) { $levels++; } my $count = scalar(@main::pfile_args); for (my $i = 0; $i < $count; $i++) { $main::profile_files[$i] = FetchDynamicProfile($main::prog, $main::pfile_args[$i], 1, 0); } print STDERR "Fetching $count profiles, Be patient...\n"; FetchDynamicProfilesRecurse($levels, 0, 0); $main::collected_profile = join(" \\\n ", @main::profile_files); } } # Recursively fork a process to get enough processes # collecting profiles sub FetchDynamicProfilesRecurse { my $maxlevel = shift; my $level = shift; my $position = shift; if (my $pid = fork()) { $position = 0 | ($position << 1); TryCollectProfile($maxlevel, $level, $position); wait; } else { $position = 1 | ($position << 1); TryCollectProfile($maxlevel, $level, $position); cleanup(); exit(0); } } # Collect a single profile sub TryCollectProfile { my $maxlevel = shift; my $level = shift; my $position = shift; if ($level >= ($maxlevel - 1)) { if ($position < scalar(@main::pfile_args)) { FetchDynamicProfile($main::prog, $main::pfile_args[$position], 0, 0); } } else { FetchDynamicProfilesRecurse($maxlevel, $level+1, $position); } } ##### Parsing code ##### # Provide a small streaming-read module to handle very large # cpu-profile files. Stream in chunks along a sliding window. # Provides an interface to get one 'slot', correctly handling # endian-ness differences. A slot is one 32-bit or 64-bit word # (depending on the input profile). We tell endianness and bit-size # for the profile by looking at the first 8 bytes: in cpu profiles, # the second slot is always 3 (we'll accept anything that's not 0). BEGIN { package CpuProfileStream; sub new { my ($class, $file, $fname) = @_; my $self = { file => $file, base => 0, stride => 512 * 1024, # must be a multiple of bitsize/8 slots => [], unpack_code => "", # N for big-endian, V for little perl_is_64bit => 1, # matters if profile is 64-bit }; bless $self, $class; # Let unittests adjust the stride if ($main::opt_test_stride > 0) { $self->{stride} = $main::opt_test_stride; } # Read the first two slots to figure out bitsize and endianness. my $slots = $self->{slots}; my $str; read($self->{file}, $str, 8); # Set the global $address_length based on what we see here. # 8 is 32-bit (8 hexadecimal chars); 16 is 64-bit (16 hexadecimal chars). $address_length = ($str eq (chr(0)x8)) ? 16 : 8; if ($address_length == 8) { if (substr($str, 6, 2) eq chr(0)x2) { $self->{unpack_code} = 'V'; # Little-endian. } elsif (substr($str, 4, 2) eq chr(0)x2) { $self->{unpack_code} = 'N'; # Big-endian } else { ::error("$fname: header size >= 2**16\n"); } @$slots = unpack($self->{unpack_code} . "*", $str); } else { # If we're a 64-bit profile, check if we're a 64-bit-capable # perl. Otherwise, each slot will be represented as a float # instead of an int64, losing precision and making all the # 64-bit addresses wrong. We won't complain yet, but will # later if we ever see a value that doesn't fit in 32 bits. my $has_q = 0; eval { $has_q = pack("Q", "1") ? 1 : 1; }; if (!$has_q) { $self->{perl_is_64bit} = 0; } read($self->{file}, $str, 8); if (substr($str, 4, 4) eq chr(0)x4) { # We'd love to use 'Q', but it's a) not universal, b) not endian-proof. $self->{unpack_code} = 'V'; # Little-endian. } elsif (substr($str, 0, 4) eq chr(0)x4) { $self->{unpack_code} = 'N'; # Big-endian } else { ::error("$fname: header size >= 2**32\n"); } my @pair = unpack($self->{unpack_code} . "*", $str); # Since we know one of the pair is 0, it's fine to just add them. @$slots = (0, $pair[0] + $pair[1]); } return $self; } # Load more data when we access slots->get(X) which is not yet in memory. sub overflow { my ($self) = @_; my $slots = $self->{slots}; $self->{base} += $#$slots + 1; # skip over data we're replacing my $str; read($self->{file}, $str, $self->{stride}); if ($address_length == 8) { # the 32-bit case # This is the easy case: unpack provides 32-bit unpacking primitives. @$slots = unpack($self->{unpack_code} . "*", $str); } else { # We need to unpack 32 bits at a time and combine. my @b32_values = unpack($self->{unpack_code} . "*", $str); my @b64_values = (); for (my $i = 0; $i < $#b32_values; $i += 2) { # TODO(csilvers): if this is a 32-bit perl, the math below # could end up in a too-large int, which perl will promote # to a double, losing necessary precision. Deal with that. # Right now, we just die. my ($lo, $hi) = ($b32_values[$i], $b32_values[$i+1]); if ($self->{unpack_code} eq 'N') { # big-endian ($lo, $hi) = ($hi, $lo); } my $value = $lo + $hi * (2**32); if (!$self->{perl_is_64bit} && # check value is exactly represented (($value % (2**32)) != $lo || int($value / (2**32)) != $hi)) { ::error("Need a 64-bit perl to process this 64-bit profile.\n"); } push(@b64_values, $value); } @$slots = @b64_values; } } # Access the i-th long in the file (logically), or -1 at EOF. sub get { my ($self, $idx) = @_; my $slots = $self->{slots}; while ($#$slots >= 0) { if ($idx < $self->{base}) { # The only time we expect a reference to $slots[$i - something] # after referencing $slots[$i] is reading the very first header. # Since $stride > |header|, that shouldn't cause any lookback # errors. And everything after the header is sequential. print STDERR "Unexpected look-back reading CPU profile"; return -1; # shrug, don't know what better to return } elsif ($idx > $self->{base} + $#$slots) { $self->overflow(); } else { return $slots->[$idx - $self->{base}]; } } # If we get here, $slots is [], which means we've reached EOF return -1; # unique since slots is supposed to hold unsigned numbers } } # Reads the top, 'header' section of a profile, and returns the last # line of the header, commonly called a 'header line'. The header # section of a profile consists of zero or more 'command' lines that # are instructions to pprof, which pprof executes when reading the # header. All 'command' lines start with a %. After the command # lines is the 'header line', which is a profile-specific line that # indicates what type of profile it is, and perhaps other global # information about the profile. For instance, here's a header line # for a heap profile: # heap profile: 53: 38236 [ 5525: 1284029] @ heapprofile # For historical reasons, the CPU profile does not contain a text- # readable header line. If the profile looks like a CPU profile, # this function returns "". If no header line could be found, this # function returns undef. # # The following commands are recognized: # %warn -- emit the rest of this line to stderr, prefixed by 'WARNING:' # # The input file should be in binmode. sub ReadProfileHeader { local *PROFILE = shift; my $firstchar = ""; my $line = ""; read(PROFILE, $firstchar, 1); seek(PROFILE, -1, 1); # unread the firstchar if ($firstchar !~ /[[:print:]]/) { # is not a text character return ""; } while (defined($line = )) { $line =~ s/\r//g; # turn windows-looking lines into unix-looking lines if ($line =~ /^%warn\s+(.*)/) { # 'warn' command # Note this matches both '%warn blah\n' and '%warn\n'. print STDERR "WARNING: $1\n"; # print the rest of the line } elsif ($line =~ /^%/) { print STDERR "Ignoring unknown command from profile header: $line"; } else { # End of commands, must be the header line. return $line; } } return undef; # got to EOF without seeing a header line } sub IsSymbolizedProfileFile { my $file_name = shift; if (!(-e $file_name) || !(-r $file_name)) { return 0; } # Check if the file contains a symbol-section marker. open(TFILE, "<$file_name"); binmode TFILE; my $firstline = ReadProfileHeader(*TFILE); close(TFILE); if (!$firstline) { return 0; } $SYMBOL_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $symbol_marker = $&; return $firstline =~ /^--- *$symbol_marker/; } # Parse profile generated by common/profiler.cc and return a reference # to a map: # $result->{version} Version number of profile file # $result->{period} Sampling period (in microseconds) # $result->{profile} Profile object # $result->{map} Memory map info from profile # $result->{pcs} Hash of all PC values seen, key is hex address sub ReadProfile { my $prog = shift; my $fname = shift; my $result; # return value $CONTENTION_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $contention_marker = $&; $GROWTH_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $growth_marker = $&; $SYMBOL_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $symbol_marker = $&; $PROFILE_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $profile_marker = $&; # Look at first line to see if it is a heap or a CPU profile. # CPU profile may start with no header at all, and just binary data # (starting with \0\0\0\0) -- in that case, don't try to read the # whole firstline, since it may be gigabytes(!) of data. open(PROFILE, "<$fname") || error("$fname: $!\n"); binmode PROFILE; # New perls do UTF-8 processing my $header = ReadProfileHeader(*PROFILE); if (!defined($header)) { # means "at EOF" error("Profile is empty.\n"); } my $symbols; if ($header =~ m/^--- *$symbol_marker/o) { # Verify that the user asked for a symbolized profile if (!$main::use_symbolized_profile) { # we have both a binary and symbolized profiles, abort error("FATAL ERROR: Symbolized profile\n $fname\ncannot be used with " . "a binary arg. Try again without passing\n $prog\n"); } # Read the symbol section of the symbolized profile file. $symbols = ReadSymbols(*PROFILE{IO}); # Read the next line to get the header for the remaining profile. $header = ReadProfileHeader(*PROFILE) || ""; } $main::profile_type = ''; if ($header =~ m/^heap profile:.*$growth_marker/o) { $main::profile_type = 'growth'; $result = ReadHeapProfile($prog, *PROFILE, $header); } elsif ($header =~ m/^heap profile:/) { $main::profile_type = 'heap'; $result = ReadHeapProfile($prog, *PROFILE, $header); } elsif ($header =~ m/^--- *$contention_marker/o) { $main::profile_type = 'contention'; $result = ReadSynchProfile($prog, *PROFILE); } elsif ($header =~ m/^--- *Stacks:/) { print STDERR "Old format contention profile: mistakenly reports " . "condition variable signals as lock contentions.\n"; $main::profile_type = 'contention'; $result = ReadSynchProfile($prog, *PROFILE); } elsif ($header =~ m/^--- *$profile_marker/) { # the binary cpu profile data starts immediately after this line $main::profile_type = 'cpu'; $result = ReadCPUProfile($prog, $fname, *PROFILE); } else { if (defined($symbols)) { # a symbolized profile contains a format we don't recognize, bail out error("$fname: Cannot recognize profile section after symbols.\n"); } # no ascii header present -- must be a CPU profile $main::profile_type = 'cpu'; $result = ReadCPUProfile($prog, $fname, *PROFILE); } close(PROFILE); # if we got symbols along with the profile, return those as well if (defined($symbols)) { $result->{symbols} = $symbols; } return $result; } # Subtract one from caller pc so we map back to call instr. # However, don't do this if we're reading a symbolized profile # file, in which case the subtract-one was done when the file # was written. # # We apply the same logic to all readers, though ReadCPUProfile uses an # independent implementation. sub FixCallerAddresses { my $stack = shift; if ($main::use_symbolized_profile) { return $stack; } else { $stack =~ /(\s)/; my $delimiter = $1; my @addrs = split(' ', $stack); my @fixedaddrs; $#fixedaddrs = $#addrs; if ($#addrs >= 0) { $fixedaddrs[0] = $addrs[0]; } for (my $i = 1; $i <= $#addrs; $i++) { $fixedaddrs[$i] = AddressSub($addrs[$i], "0x1"); } return join $delimiter, @fixedaddrs; } } # CPU profile reader sub ReadCPUProfile { my $prog = shift; my $fname = shift; # just used for logging local *PROFILE = shift; my $version; my $period; my $i; my $profile = {}; my $pcs = {}; # Parse string into array of slots. my $slots = CpuProfileStream->new(*PROFILE, $fname); # Read header. The current header version is a 5-element structure # containing: # 0: header count (always 0) # 1: header "words" (after this one: 3) # 2: format version (0) # 3: sampling period (usec) # 4: unused padding (always 0) if ($slots->get(0) != 0 ) { error("$fname: not a profile file, or old format profile file\n"); } $i = 2 + $slots->get(1); $version = $slots->get(2); $period = $slots->get(3); # Do some sanity checking on these header values. if ($version > (2**32) || $period > (2**32) || $i > (2**32) || $i < 5) { error("$fname: not a profile file, or corrupted profile file\n"); } # Parse profile while ($slots->get($i) != -1) { my $n = $slots->get($i++); my $d = $slots->get($i++); if ($d > (2**16)) { # TODO(csilvers): what's a reasonable max-stack-depth? my $addr = sprintf("0%o", $i * ($address_length == 8 ? 4 : 8)); print STDERR "At index $i (address $addr):\n"; error("$fname: stack trace depth >= 2**32\n"); } if ($slots->get($i) == 0) { # End of profile data marker $i += $d; last; } # Make key out of the stack entries my @k = (); for (my $j = 0; $j < $d; $j++) { my $pc = $slots->get($i+$j); # Subtract one from caller pc so we map back to call instr. # However, don't do this if we're reading a symbolized profile # file, in which case the subtract-one was done when the file # was written. if ($j > 0 && !$main::use_symbolized_profile) { $pc--; } $pc = sprintf("%0*x", $address_length, $pc); $pcs->{$pc} = 1; push @k, $pc; } AddEntry($profile, (join "\n", @k), $n); $i += $d; } # Parse map my $map = ''; seek(PROFILE, $i * 4, 0); read(PROFILE, $map, (stat PROFILE)[7]); my $r = {}; $r->{version} = $version; $r->{period} = $period; $r->{profile} = $profile; $r->{libs} = ParseLibraries($prog, $map, $pcs); $r->{pcs} = $pcs; return $r; } sub ReadHeapProfile { my $prog = shift; local *PROFILE = shift; my $header = shift; my $index = 1; if ($main::opt_inuse_space) { $index = 1; } elsif ($main::opt_inuse_objects) { $index = 0; } elsif ($main::opt_alloc_space) { $index = 3; } elsif ($main::opt_alloc_objects) { $index = 2; } # Find the type of this profile. The header line looks like: # heap profile: 1246: 8800744 [ 1246: 8800744] @ /266053 # There are two pairs , the first inuse objects/space, and the # second allocated objects/space. This is followed optionally by a profile # type, and if that is present, optionally by a sampling frequency. # For remote heap profiles (v1): # The interpretation of the sampling frequency is that the profiler, for # each sample, calculates a uniformly distributed random integer less than # the given value, and records the next sample after that many bytes have # been allocated. Therefore, the expected sample interval is half of the # given frequency. By default, if not specified, the expected sample # interval is 128KB. Only remote-heap-page profiles are adjusted for # sample size. # For remote heap profiles (v2): # The sampling frequency is the rate of a Poisson process. This means that # the probability of sampling an allocation of size X with sampling rate Y # is 1 - exp(-X/Y) # For version 2, a typical header line might look like this: # heap profile: 1922: 127792360 [ 1922: 127792360] @ _v2/524288 # the trailing number (524288) is the sampling rate. (Version 1 showed # double the 'rate' here) my $sampling_algorithm = 0; my $sample_adjustment = 0; chomp($header); my $type = "unknown"; if ($header =~ m"^heap profile:\s*(\d+):\s+(\d+)\s+\[\s*(\d+):\s+(\d+)\](\s*@\s*([^/]*)(/(\d+))?)?") { if (defined($6) && ($6 ne '')) { $type = $6; my $sample_period = $8; # $type is "heapprofile" for profiles generated by the # heap-profiler, and either "heap" or "heap_v2" for profiles # generated by sampling directly within tcmalloc. It can also # be "growth" for heap-growth profiles. The first is typically # found for profiles generated locally, and the others for # remote profiles. if (($type eq "heapprofile") || ($type !~ /heap/) ) { # No need to adjust for the sampling rate with heap-profiler-derived data $sampling_algorithm = 0; } elsif ($type =~ /_v2/) { $sampling_algorithm = 2; # version 2 sampling if (defined($sample_period) && ($sample_period ne '')) { $sample_adjustment = int($sample_period); } } else { $sampling_algorithm = 1; # version 1 sampling if (defined($sample_period) && ($sample_period ne '')) { $sample_adjustment = int($sample_period)/2; } } } else { # We detect whether or not this is a remote-heap profile by checking # that the total-allocated stats ($n2,$s2) are exactly the # same as the in-use stats ($n1,$s1). It is remotely conceivable # that a non-remote-heap profile may pass this check, but it is hard # to imagine how that could happen. # In this case it's so old it's guaranteed to be remote-heap version 1. my ($n1, $s1, $n2, $s2) = ($1, $2, $3, $4); if (($n1 == $n2) && ($s1 == $s2)) { # This is likely to be a remote-heap based sample profile $sampling_algorithm = 1; } } } if ($sampling_algorithm > 0) { # For remote-heap generated profiles, adjust the counts and sizes to # account for the sample rate (we sample once every 128KB by default). if ($sample_adjustment == 0) { # Turn on profile adjustment. $sample_adjustment = 128*1024; print STDERR "Adjusting heap profiles for 1-in-128KB sampling rate\n"; } else { printf STDERR ("Adjusting heap profiles for 1-in-%d sampling rate\n", $sample_adjustment); } if ($sampling_algorithm > 1) { # We don't bother printing anything for the original version (version 1) printf STDERR "Heap version $sampling_algorithm\n"; } } my $profile = {}; my $pcs = {}; my $map = ""; while () { s/\r//g; # turn windows-looking lines into unix-looking lines if (/^MAPPED_LIBRARIES:/) { # Read the /proc/self/maps data while () { s/\r//g; # turn windows-looking lines into unix-looking lines $map .= $_; } last; } if (/^--- Memory map:/) { # Read /proc/self/maps data as formatted by DumpAddressMap() my $buildvar = ""; while () { s/\r//g; # turn windows-looking lines into unix-looking lines # Parse "build=" specification if supplied if (m/^\s*build=(.*)\n/) { $buildvar = $1; } # Expand "$build" variable if available $_ =~ s/\$build\b/$buildvar/g; $map .= $_; } last; } # Read entry of the form: # : [: ] @ a1 a2 a3 ... an s/^\s*//; s/\s*$//; if (m/^\s*(\d+):\s+(\d+)\s+\[\s*(\d+):\s+(\d+)\]\s+@\s+(.*)$/) { my $stack = $5; my ($n1, $s1, $n2, $s2) = ($1, $2, $3, $4); if ($sample_adjustment) { if ($sampling_algorithm == 2) { # Remote-heap version 2 # The sampling frequency is the rate of a Poisson process. # This means that the probability of sampling an allocation of # size X with sampling rate Y is 1 - exp(-X/Y) if ($n1 != 0) { my $ratio = (($s1*1.0)/$n1)/($sample_adjustment); my $scale_factor = 1/(1 - exp(-$ratio)); $n1 *= $scale_factor; $s1 *= $scale_factor; } if ($n2 != 0) { my $ratio = (($s2*1.0)/$n2)/($sample_adjustment); my $scale_factor = 1/(1 - exp(-$ratio)); $n2 *= $scale_factor; $s2 *= $scale_factor; } } else { # Remote-heap version 1 my $ratio; $ratio = (($s1*1.0)/$n1)/($sample_adjustment); if ($ratio < 1) { $n1 /= $ratio; $s1 /= $ratio; } $ratio = (($s2*1.0)/$n2)/($sample_adjustment); if ($ratio < 1) { $n2 /= $ratio; $s2 /= $ratio; } } } my @counts = ($n1, $s1, $n2, $s2); AddEntries($profile, $pcs, FixCallerAddresses($stack), $counts[$index]); } } my $r = {}; $r->{version} = "heap"; $r->{period} = 1; $r->{profile} = $profile; $r->{libs} = ParseLibraries($prog, $map, $pcs); $r->{pcs} = $pcs; return $r; } sub ReadSynchProfile { my $prog = shift; local *PROFILE = shift; my $header = shift; my $map = ''; my $profile = {}; my $pcs = {}; my $sampling_period = 1; my $cyclespernanosec = 2.8; # Default assumption for old binaries my $seen_clockrate = 0; my $line; my $index = 0; if ($main::opt_total_delay) { $index = 0; } elsif ($main::opt_contentions) { $index = 1; } elsif ($main::opt_mean_delay) { $index = 2; } while ( $line = ) { $line =~ s/\r//g; # turn windows-looking lines into unix-looking lines if ( $line =~ /^\s*(\d+)\s+(\d+) \@\s*(.*?)\s*$/ ) { my ($cycles, $count, $stack) = ($1, $2, $3); # Convert cycles to nanoseconds $cycles /= $cyclespernanosec; # Adjust for sampling done by application $cycles *= $sampling_period; $count *= $sampling_period; my @values = ($cycles, $count, $cycles / $count); AddEntries($profile, $pcs, FixCallerAddresses($stack), $values[$index]); } elsif ( $line =~ /^(slow release).*thread \d+ \@\s*(.*?)\s*$/ || $line =~ /^\s*(\d+) \@\s*(.*?)\s*$/ ) { my ($cycles, $stack) = ($1, $2); if ($cycles !~ /^\d+$/) { next; } # Convert cycles to nanoseconds $cycles /= $cyclespernanosec; # Adjust for sampling done by application $cycles *= $sampling_period; AddEntries($profile, $pcs, FixCallerAddresses($stack), $cycles); } elsif ( $line =~ m/^([a-z][^=]*)=(.*)$/ ) { my ($variable, $value) = ($1,$2); for ($variable, $value) { s/^\s+//; s/\s+$//; } if ($variable eq "cycles/second") { $cyclespernanosec = $value / 1e9; $seen_clockrate = 1; } elsif ($variable eq "sampling period") { $sampling_period = $value; } elsif ($variable eq "ms since reset") { # Currently nothing is done with this value in pprof # So we just silently ignore it for now } elsif ($variable eq "discarded samples") { # Currently nothing is done with this value in pprof # So we just silently ignore it for now } else { printf STDERR ("Ignoring unnknown variable in /contention output: " . "'%s' = '%s'\n",$variable,$value); } } else { # Memory map entry $map .= $line; } } if (!$seen_clockrate) { printf STDERR ("No cycles/second entry in profile; Guessing %.1f GHz\n", $cyclespernanosec); } my $r = {}; $r->{version} = 0; $r->{period} = $sampling_period; $r->{profile} = $profile; $r->{libs} = ParseLibraries($prog, $map, $pcs); $r->{pcs} = $pcs; return $r; } # Given a hex value in the form "0x1abcd" or "1abcd", return either # "0001abcd" or "000000000001abcd", depending on the current (global) # address length. sub HexExtend { my $addr = shift; $addr =~ s/^(0x)?0*//; my $zeros_needed = $address_length - length($addr); if ($zeros_needed < 0) { printf STDERR "Warning: address $addr is longer than address length $address_length\n"; return $addr; } return ("0" x $zeros_needed) . $addr; } ##### Symbol extraction ##### # Aggressively search the lib_prefix values for the given library # If all else fails, just return the name of the library unmodified. # If the lib_prefix is "/my/path,/other/path" and $file is "/lib/dir/mylib.so" # it will search the following locations in this order, until it finds a file: # /my/path/lib/dir/mylib.so # /other/path/lib/dir/mylib.so # /my/path/dir/mylib.so # /other/path/dir/mylib.so # /my/path/mylib.so # /other/path/mylib.so # /lib/dir/mylib.so (returned as last resort) sub FindLibrary { my $file = shift; my $suffix = $file; # Search for the library as described above do { foreach my $prefix (@prefix_list) { my $fullpath = $prefix . $suffix; if (-e $fullpath) { return $fullpath; } } } while ($suffix =~ s|^/[^/]+/|/|); return $file; } # Return path to library with debugging symbols. # For libc libraries, the copy in /usr/lib/debug contains debugging symbols sub DebuggingLibrary { my $file = shift; if ($file =~ m|^/| && -f "/usr/lib/debug$file") { return "/usr/lib/debug$file"; } return undef; } # Parse text section header of a library using objdump sub ParseTextSectionHeaderFromObjdump { my $lib = shift; my $size = undef; my $vma; my $file_offset; # Get objdump output from the library file to figure out how to # map between mapped addresses and addresses in the library. my $cmd = ShellEscape($obj_tool_map{"objdump"}, "-h", $lib); open(OBJDUMP, "$cmd |") || error("$cmd: $!\n"); while () { s/\r//g; # turn windows-looking lines into unix-looking lines # Idx Name Size VMA LMA File off Algn # 10 .text 00104b2c 420156f0 420156f0 000156f0 2**4 # For 64-bit objects, VMA and LMA will be 16 hex digits, size and file # offset may still be 8. But AddressSub below will still handle that. my @x = split; if (($#x >= 6) && ($x[1] eq '.text')) { $size = $x[2]; $vma = $x[3]; $file_offset = $x[5]; last; } } close(OBJDUMP); if (!defined($size)) { return undef; } my $r = {}; $r->{size} = $size; $r->{vma} = $vma; $r->{file_offset} = $file_offset; return $r; } # Parse text section header of a library using otool (on OS X) sub ParseTextSectionHeaderFromOtool { my $lib = shift; my $size = undef; my $vma = undef; my $file_offset = undef; # Get otool output from the library file to figure out how to # map between mapped addresses and addresses in the library. my $command = ShellEscape($obj_tool_map{"otool"}, "-l", $lib); open(OTOOL, "$command |") || error("$command: $!\n"); my $cmd = ""; my $sectname = ""; my $segname = ""; foreach my $line () { $line =~ s/\r//g; # turn windows-looking lines into unix-looking lines # Load command <#> # cmd LC_SEGMENT # [...] # Section # sectname __text # segname __TEXT # addr 0x000009f8 # size 0x00018b9e # offset 2552 # align 2^2 (4) # We will need to strip off the leading 0x from the hex addresses, # and convert the offset into hex. if ($line =~ /Load command/) { $cmd = ""; $sectname = ""; $segname = ""; } elsif ($line =~ /Section/) { $sectname = ""; $segname = ""; } elsif ($line =~ /cmd (\w+)/) { $cmd = $1; } elsif ($line =~ /sectname (\w+)/) { $sectname = $1; } elsif ($line =~ /segname (\w+)/) { $segname = $1; } elsif (!(($cmd eq "LC_SEGMENT" || $cmd eq "LC_SEGMENT_64") && $sectname eq "__text" && $segname eq "__TEXT")) { next; } elsif ($line =~ /\baddr 0x([0-9a-fA-F]+)/) { $vma = $1; } elsif ($line =~ /\bsize 0x([0-9a-fA-F]+)/) { $size = $1; } elsif ($line =~ /\boffset ([0-9]+)/) { $file_offset = sprintf("%016x", $1); } if (defined($vma) && defined($size) && defined($file_offset)) { last; } } close(OTOOL); if (!defined($vma) || !defined($size) || !defined($file_offset)) { return undef; } my $r = {}; $r->{size} = $size; $r->{vma} = $vma; $r->{file_offset} = $file_offset; return $r; } sub ParseTextSectionHeader { # obj_tool_map("otool") is only defined if we're in a Mach-O environment if (defined($obj_tool_map{"otool"})) { my $r = ParseTextSectionHeaderFromOtool(@_); if (defined($r)){ return $r; } } # If otool doesn't work, or we don't have it, fall back to objdump return ParseTextSectionHeaderFromObjdump(@_); } # Split /proc/pid/maps dump into a list of libraries sub ParseLibraries { return if $main::use_symbol_page; # We don't need libraries info. my $prog = shift; my $map = shift; my $pcs = shift; my $result = []; my $h = "[a-f0-9]+"; my $zero_offset = HexExtend("0"); my $buildvar = ""; foreach my $l (split("\n", $map)) { if ($l =~ m/^\s*build=(.*)$/) { $buildvar = $1; } my $start; my $finish; my $offset; my $lib; if ($l =~ /^($h)-($h)\s+..x.\s+($h)\s+\S+:\S+\s+\d+\s+(\S+\.(so|dll|dylib|bundle)((\.\d+)+\w*(\.\d+){0,3})?)$/i) { # Full line from /proc/self/maps. Example: # 40000000-40015000 r-xp 00000000 03:01 12845071 /lib/ld-2.3.2.so $start = HexExtend($1); $finish = HexExtend($2); $offset = HexExtend($3); $lib = $4; $lib =~ s|\\|/|g; # turn windows-style paths into unix-style paths } elsif ($l =~ /^\s*($h)-($h):\s*(\S+\.so(\.\d+)*)/) { # Cooked line from DumpAddressMap. Example: # 40000000-40015000: /lib/ld-2.3.2.so $start = HexExtend($1); $finish = HexExtend($2); $offset = $zero_offset; $lib = $3; } else { next; } # Expand "$build" variable if available $lib =~ s/\$build\b/$buildvar/g; $lib = FindLibrary($lib); # Check for pre-relocated libraries, which use pre-relocated symbol tables # and thus require adjusting the offset that we'll use to translate # VM addresses into symbol table addresses. # Only do this if we're not going to fetch the symbol table from a # debugging copy of the library. if (!DebuggingLibrary($lib)) { my $text = ParseTextSectionHeader($lib); if (defined($text)) { my $vma_offset = AddressSub($text->{vma}, $text->{file_offset}); $offset = AddressAdd($offset, $vma_offset); } } push(@{$result}, [$lib, $start, $finish, $offset]); } # Append special entry for additional library (not relocated) if ($main::opt_lib ne "") { my $text = ParseTextSectionHeader($main::opt_lib); if (defined($text)) { my $start = $text->{vma}; my $finish = AddressAdd($start, $text->{size}); push(@{$result}, [$main::opt_lib, $start, $finish, $start]); } } # Append special entry for the main program. This covers # 0..max_pc_value_seen, so that we assume pc values not found in one # of the library ranges will be treated as coming from the main # program binary. my $min_pc = HexExtend("0"); my $max_pc = $min_pc; # find the maximal PC value in any sample foreach my $pc (keys(%{$pcs})) { if (HexExtend($pc) gt $max_pc) { $max_pc = HexExtend($pc); } } push(@{$result}, [$prog, $min_pc, $max_pc, $zero_offset]); return $result; } # Add two hex addresses of length $address_length. # Run pprof --test for unit test if this is changed. sub AddressAdd { my $addr1 = shift; my $addr2 = shift; my $sum; if ($address_length == 8) { # Perl doesn't cope with wraparound arithmetic, so do it explicitly: $sum = (hex($addr1)+hex($addr2)) % (0x10000000 * 16); return sprintf("%08x", $sum); } else { # Do the addition in 7-nibble chunks to trivialize carry handling. if ($main::opt_debug and $main::opt_test) { print STDERR "AddressAdd $addr1 + $addr2 = "; } my $a1 = substr($addr1,-7); $addr1 = substr($addr1,0,-7); my $a2 = substr($addr2,-7); $addr2 = substr($addr2,0,-7); $sum = hex($a1) + hex($a2); my $c = 0; if ($sum > 0xfffffff) { $c = 1; $sum -= 0x10000000; } my $r = sprintf("%07x", $sum); $a1 = substr($addr1,-7); $addr1 = substr($addr1,0,-7); $a2 = substr($addr2,-7); $addr2 = substr($addr2,0,-7); $sum = hex($a1) + hex($a2) + $c; $c = 0; if ($sum > 0xfffffff) { $c = 1; $sum -= 0x10000000; } $r = sprintf("%07x", $sum) . $r; $sum = hex($addr1) + hex($addr2) + $c; if ($sum > 0xff) { $sum -= 0x100; } $r = sprintf("%02x", $sum) . $r; if ($main::opt_debug and $main::opt_test) { print STDERR "$r\n"; } return $r; } } # Subtract two hex addresses of length $address_length. # Run pprof --test for unit test if this is changed. sub AddressSub { my $addr1 = shift; my $addr2 = shift; my $diff; if ($address_length == 8) { # Perl doesn't cope with wraparound arithmetic, so do it explicitly: $diff = (hex($addr1)-hex($addr2)) % (0x10000000 * 16); return sprintf("%08x", $diff); } else { # Do the addition in 7-nibble chunks to trivialize borrow handling. # if ($main::opt_debug) { print STDERR "AddressSub $addr1 - $addr2 = "; } my $a1 = hex(substr($addr1,-7)); $addr1 = substr($addr1,0,-7); my $a2 = hex(substr($addr2,-7)); $addr2 = substr($addr2,0,-7); my $b = 0; if ($a2 > $a1) { $b = 1; $a1 += 0x10000000; } $diff = $a1 - $a2; my $r = sprintf("%07x", $diff); $a1 = hex(substr($addr1,-7)); $addr1 = substr($addr1,0,-7); $a2 = hex(substr($addr2,-7)) + $b; $addr2 = substr($addr2,0,-7); $b = 0; if ($a2 > $a1) { $b = 1; $a1 += 0x10000000; } $diff = $a1 - $a2; $r = sprintf("%07x", $diff) . $r; $a1 = hex($addr1); $a2 = hex($addr2) + $b; if ($a2 > $a1) { $a1 += 0x100; } $diff = $a1 - $a2; $r = sprintf("%02x", $diff) . $r; # if ($main::opt_debug) { print STDERR "$r\n"; } return $r; } } # Increment a hex addresses of length $address_length. # Run pprof --test for unit test if this is changed. sub AddressInc { my $addr = shift; my $sum; if ($address_length == 8) { # Perl doesn't cope with wraparound arithmetic, so do it explicitly: $sum = (hex($addr)+1) % (0x10000000 * 16); return sprintf("%08x", $sum); } else { # Do the addition in 7-nibble chunks to trivialize carry handling. # We are always doing this to step through the addresses in a function, # and will almost never overflow the first chunk, so we check for this # case and exit early. # if ($main::opt_debug) { print STDERR "AddressInc $addr1 = "; } my $a1 = substr($addr,-7); $addr = substr($addr,0,-7); $sum = hex($a1) + 1; my $r = sprintf("%07x", $sum); if ($sum <= 0xfffffff) { $r = $addr . $r; # if ($main::opt_debug) { print STDERR "$r\n"; } return HexExtend($r); } else { $r = "0000000"; } $a1 = substr($addr,-7); $addr = substr($addr,0,-7); $sum = hex($a1) + 1; $r = sprintf("%07x", $sum) . $r; if ($sum <= 0xfffffff) { $r = $addr . $r; # if ($main::opt_debug) { print STDERR "$r\n"; } return HexExtend($r); } else { $r = "00000000000000"; } $sum = hex($addr) + 1; if ($sum > 0xff) { $sum -= 0x100; } $r = sprintf("%02x", $sum) . $r; # if ($main::opt_debug) { print STDERR "$r\n"; } return $r; } } # Extract symbols for all PC values found in profile sub ExtractSymbols { my $libs = shift; my $pcset = shift; my $symbols = {}; # Map each PC value to the containing library. To make this faster, # we sort libraries by their starting pc value (highest first), and # advance through the libraries as we advance the pc. Sometimes the # addresses of libraries may overlap with the addresses of the main # binary, so to make sure the libraries 'win', we iterate over the # libraries in reverse order (which assumes the binary doesn't start # in the middle of a library, which seems a fair assumption). my @pcs = (sort { $a cmp $b } keys(%{$pcset})); # pcset is 0-extended strings foreach my $lib (sort {$b->[1] cmp $a->[1]} @{$libs}) { my $libname = $lib->[0]; my $start = $lib->[1]; my $finish = $lib->[2]; my $offset = $lib->[3]; # Get list of pcs that belong in this library. my $contained = []; my ($start_pc_index, $finish_pc_index); # Find smallest finish_pc_index such that $finish < $pc[$finish_pc_index]. for ($finish_pc_index = $#pcs + 1; $finish_pc_index > 0; $finish_pc_index--) { last if $pcs[$finish_pc_index - 1] le $finish; } # Find smallest start_pc_index such that $start <= $pc[$start_pc_index]. for ($start_pc_index = $finish_pc_index; $start_pc_index > 0; $start_pc_index--) { last if $pcs[$start_pc_index - 1] lt $start; } # This keeps PC values higher than $pc[$finish_pc_index] in @pcs, # in case there are overlaps in libraries and the main binary. @{$contained} = splice(@pcs, $start_pc_index, $finish_pc_index - $start_pc_index); # Map to symbols MapToSymbols($libname, AddressSub($start, $offset), $contained, $symbols); } return $symbols; } # Map list of PC values to symbols for a given image sub MapToSymbols { my $image = shift; my $offset = shift; my $pclist = shift; my $symbols = shift; my $debug = 0; # Ignore empty binaries if ($#{$pclist} < 0) { return; } # Figure out the addr2line command to use my $addr2line = $obj_tool_map{"addr2line"}; my $cmd = ShellEscape($addr2line, "-f", "-C", "-e", $image); if (exists $obj_tool_map{"addr2line_pdb"}) { $addr2line = $obj_tool_map{"addr2line_pdb"}; $cmd = ShellEscape($addr2line, "--demangle", "-f", "-C", "-e", $image); } # If "addr2line" isn't installed on the system at all, just use # nm to get what info we can (function names, but not line numbers). if (system(ShellEscape($addr2line, "--help") . " >$dev_null 2>&1") != 0) { MapSymbolsWithNM($image, $offset, $pclist, $symbols); return; } # "addr2line -i" can produce a variable number of lines per input # address, with no separator that allows us to tell when data for # the next address starts. So we find the address for a special # symbol (_fini) and interleave this address between all real # addresses passed to addr2line. The name of this special symbol # can then be used as a separator. $sep_address = undef; # May be filled in by MapSymbolsWithNM() my $nm_symbols = {}; MapSymbolsWithNM($image, $offset, $pclist, $nm_symbols); if (defined($sep_address)) { # Only add " -i" to addr2line if the binary supports it. # addr2line --help returns 0, but not if it sees an unknown flag first. if (system("$cmd -i --help >$dev_null 2>&1") == 0) { $cmd .= " -i"; } else { $sep_address = undef; # no need for sep_address if we don't support -i } } # Make file with all PC values with intervening 'sep_address' so # that we can reliably detect the end of inlined function list open(ADDRESSES, ">$main::tmpfile_sym") || error("$main::tmpfile_sym: $!\n"); if ($debug) { print("---- $image ---\n"); } for (my $i = 0; $i <= $#{$pclist}; $i++) { # addr2line always reads hex addresses, and does not need '0x' prefix. if ($debug) { printf STDERR ("%s\n", $pclist->[$i]); } printf ADDRESSES ("%s\n", AddressSub($pclist->[$i], $offset)); if (defined($sep_address)) { printf ADDRESSES ("%s\n", $sep_address); } } close(ADDRESSES); if ($debug) { print("----\n"); system("cat", $main::tmpfile_sym); print("----\n"); system("$cmd < " . ShellEscape($main::tmpfile_sym)); print("----\n"); } open(SYMBOLS, "$cmd <" . ShellEscape($main::tmpfile_sym) . " |") || error("$cmd: $!\n"); my $count = 0; # Index in pclist while () { # Read fullfunction and filelineinfo from next pair of lines s/\r?\n$//g; my $fullfunction = $_; $_ = ; s/\r?\n$//g; my $filelinenum = $_; if (defined($sep_address) && $fullfunction eq $sep_symbol) { # Terminating marker for data for this address $count++; next; } $filelinenum =~ s|\\|/|g; # turn windows-style paths into unix-style paths my $pcstr = $pclist->[$count]; my $function = ShortFunctionName($fullfunction); my $nms = $nm_symbols->{$pcstr}; if (defined($nms)) { if ($fullfunction eq '??') { # nm found a symbol for us. $function = $nms->[0]; $fullfunction = $nms->[2]; } else { # MapSymbolsWithNM tags each routine with its starting address, # useful in case the image has multiple occurrences of this # routine. (It uses a syntax that resembles template paramters, # that are automatically stripped out by ShortFunctionName().) # addr2line does not provide the same information. So we check # if nm disambiguated our symbol, and if so take the annotated # (nm) version of the routine-name. TODO(csilvers): this won't # catch overloaded, inlined symbols, which nm doesn't see. # Better would be to do a check similar to nm's, in this fn. if ($nms->[2] =~ m/^\Q$function\E/) { # sanity check it's the right fn $function = $nms->[0]; $fullfunction = $nms->[2]; } } } # Prepend to accumulated symbols for pcstr # (so that caller comes before callee) my $sym = $symbols->{$pcstr}; if (!defined($sym)) { $sym = []; $symbols->{$pcstr} = $sym; } unshift(@{$sym}, $function, $filelinenum, $fullfunction); if ($debug) { printf STDERR ("%s => [%s]\n", $pcstr, join(" ", @{$sym})); } if (!defined($sep_address)) { # Inlining is off, so this entry ends immediately $count++; } } close(SYMBOLS); } # Use nm to map the list of referenced PCs to symbols. Return true iff we # are able to read procedure information via nm. sub MapSymbolsWithNM { my $image = shift; my $offset = shift; my $pclist = shift; my $symbols = shift; # Get nm output sorted by increasing address my $symbol_table = GetProcedureBoundaries($image, "."); if (!%{$symbol_table}) { return 0; } # Start addresses are already the right length (8 or 16 hex digits). my @names = sort { $symbol_table->{$a}->[0] cmp $symbol_table->{$b}->[0] } keys(%{$symbol_table}); if ($#names < 0) { # No symbols: just use addresses foreach my $pc (@{$pclist}) { my $pcstr = "0x" . $pc; $symbols->{$pc} = [$pcstr, "?", $pcstr]; } return 0; } # Sort addresses so we can do a join against nm output my $index = 0; my $fullname = $names[0]; my $name = ShortFunctionName($fullname); foreach my $pc (sort { $a cmp $b } @{$pclist}) { # Adjust for mapped offset my $mpc = AddressSub($pc, $offset); while (($index < $#names) && ($mpc ge $symbol_table->{$fullname}->[1])){ $index++; $fullname = $names[$index]; $name = ShortFunctionName($fullname); } if ($mpc lt $symbol_table->{$fullname}->[1]) { $symbols->{$pc} = [$name, "?", $fullname]; } else { my $pcstr = "0x" . $pc; $symbols->{$pc} = [$pcstr, "?", $pcstr]; } } return 1; } sub ShortFunctionName { my $function = shift; while ($function =~ s/\([^()]*\)(\s*const)?//g) { } # Argument types while ($function =~ s/<[^<>]*>//g) { } # Remove template arguments $function =~ s/^.*\s+(\w+::)/$1/; # Remove leading type return $function; } # Trim overly long symbols found in disassembler output sub CleanDisassembly { my $d = shift; while ($d =~ s/\([^()%]*\)(\s*const)?//g) { } # Argument types, not (%rax) while ($d =~ s/(\w+)<[^<>]*>/$1/g) { } # Remove template arguments return $d; } # Clean file name for display sub CleanFileName { my ($f) = @_; $f =~ s|^/proc/self/cwd/||; $f =~ s|^\./||; return $f; } # Make address relative to section and clean up for display sub UnparseAddress { my ($offset, $address) = @_; $address = AddressSub($address, $offset); $address =~ s/^0x//; $address =~ s/^0*//; return $address; } ##### Miscellaneous ##### # Find the right versions of the above object tools to use. The # argument is the program file being analyzed, and should be an ELF # 32-bit or ELF 64-bit executable file. The location of the tools # is determined by considering the following options in this order: # 1) --tools option, if set # 2) PPROF_TOOLS environment variable, if set # 3) the environment sub ConfigureObjTools { my $prog_file = shift; # Check for the existence of $prog_file because /usr/bin/file does not # predictably return error status in prod. (-e $prog_file) || error("$prog_file does not exist.\n"); my $file_type = undef; if (-e "/usr/bin/file") { # Follow symlinks (at least for systems where "file" supports that). my $escaped_prog_file = ShellEscape($prog_file); $file_type = `/usr/bin/file -L $escaped_prog_file 2>$dev_null || /usr/bin/file $escaped_prog_file`; } elsif ($^O == "MSWin32") { $file_type = "MS Windows"; } else { print STDERR "WARNING: Can't determine the file type of $prog_file"; } if ($file_type =~ /64-bit/) { # Change $address_length to 16 if the program file is ELF 64-bit. # We can't detect this from many (most?) heap or lock contention # profiles, since the actual addresses referenced are generally in low # memory even for 64-bit programs. $address_length = 16; } if ($file_type =~ /MS Windows/) { # For windows, we provide a version of nm and addr2line as part of # the opensource release, which is capable of parsing # Windows-style PDB executables. It should live in the path, or # in the same directory as pprof. $obj_tool_map{"nm_pdb"} = "nm-pdb"; $obj_tool_map{"addr2line_pdb"} = "addr2line-pdb"; } if ($file_type =~ /Mach-O/) { # OS X uses otool to examine Mach-O files, rather than objdump. $obj_tool_map{"otool"} = "otool"; $obj_tool_map{"addr2line"} = "false"; # no addr2line $obj_tool_map{"objdump"} = "false"; # no objdump } # Go fill in %obj_tool_map with the pathnames to use: foreach my $tool (keys %obj_tool_map) { $obj_tool_map{$tool} = ConfigureTool($obj_tool_map{$tool}); } } # Returns the path of a caller-specified object tool. If --tools or # PPROF_TOOLS are specified, then returns the full path to the tool # with that prefix. Otherwise, returns the path unmodified (which # means we will look for it on PATH). sub ConfigureTool { my $tool = shift; my $path; # --tools (or $PPROF_TOOLS) is a comma separated list, where each # item is either a) a pathname prefix, or b) a map of the form # :. First we look for an entry of type (b) for our # tool. If one is found, we use it. Otherwise, we consider all the # pathname prefixes in turn, until one yields an existing file. If # none does, we use a default path. my $tools = $main::opt_tools || $ENV{"PPROF_TOOLS"} || ""; if ($tools =~ m/(,|^)\Q$tool\E:([^,]*)/) { $path = $2; # TODO(csilvers): sanity-check that $path exists? Hard if it's relative. } elsif ($tools ne '') { foreach my $prefix (split(',', $tools)) { next if ($prefix =~ /:/); # ignore "tool:fullpath" entries in the list if (-x $prefix . $tool) { $path = $prefix . $tool; last; } } if (!$path) { error("No '$tool' found with prefix specified by " . "--tools (or \$PPROF_TOOLS) '$tools'\n"); } } else { # ... otherwise use the version that exists in the same directory as # pprof. If there's nothing there, use $PATH. $0 =~ m,[^/]*$,; # this is everything after the last slash my $dirname = $`; # this is everything up to and including the last slash if (-x "$dirname$tool") { $path = "$dirname$tool"; } else { $path = $tool; } } if ($main::opt_debug) { print STDERR "Using '$path' for '$tool'.\n"; } return $path; } sub ShellEscape { my @escaped_words = (); foreach my $word (@_) { my $escaped_word = $word; if ($word =~ m![^a-zA-Z0-9/.,_=-]!) { # check for anything not in whitelist $escaped_word =~ s/'/'\\''/; $escaped_word = "'$escaped_word'"; } push(@escaped_words, $escaped_word); } return join(" ", @escaped_words); } sub cleanup { unlink($main::tmpfile_sym); unlink(keys %main::tempnames); # We leave any collected profiles in $HOME/pprof in case the user wants # to look at them later. We print a message informing them of this. if ((scalar(@main::profile_files) > 0) && defined($main::collected_profile)) { if (scalar(@main::profile_files) == 1) { print STDERR "Dynamically gathered profile is in $main::collected_profile\n"; } print STDERR "If you want to investigate this profile further, you can do:\n"; print STDERR "\n"; print STDERR " pprof \\\n"; print STDERR " $main::prog \\\n"; print STDERR " $main::collected_profile\n"; print STDERR "\n"; } } sub sighandler { cleanup(); exit(1); } sub error { my $msg = shift; print STDERR $msg; cleanup(); exit(1); } # Run $nm_command and get all the resulting procedure boundaries whose # names match "$regexp" and returns them in a hashtable mapping from # procedure name to a two-element vector of [start address, end address] sub GetProcedureBoundariesViaNm { my $escaped_nm_command = shift; # shell-escaped my $regexp = shift; my $symbol_table = {}; open(NM, "$escaped_nm_command |") || error("$escaped_nm_command: $!\n"); my $last_start = "0"; my $routine = ""; while () { s/\r//g; # turn windows-looking lines into unix-looking lines if (m/^\s*([0-9a-f]+) (.) (..*)/) { my $start_val = $1; my $type = $2; my $this_routine = $3; # It's possible for two symbols to share the same address, if # one is a zero-length variable (like __start_google_malloc) or # one symbol is a weak alias to another (like __libc_malloc). # In such cases, we want to ignore all values except for the # actual symbol, which in nm-speak has type "T". The logic # below does this, though it's a bit tricky: what happens when # we have a series of lines with the same address, is the first # one gets queued up to be processed. However, it won't # *actually* be processed until later, when we read a line with # a different address. That means that as long as we're reading # lines with the same address, we have a chance to replace that # item in the queue, which we do whenever we see a 'T' entry -- # that is, a line with type 'T'. If we never see a 'T' entry, # we'll just go ahead and process the first entry (which never # got touched in the queue), and ignore the others. if ($start_val eq $last_start && $type =~ /t/i) { # We are the 'T' symbol at this address, replace previous symbol. $routine = $this_routine; next; } elsif ($start_val eq $last_start) { # We're not the 'T' symbol at this address, so ignore us. next; } if ($this_routine eq $sep_symbol) { $sep_address = HexExtend($start_val); } # Tag this routine with the starting address in case the image # has multiple occurrences of this routine. We use a syntax # that resembles template paramters that are automatically # stripped out by ShortFunctionName() $this_routine .= "<$start_val>"; if (defined($routine) && $routine =~ m/$regexp/) { $symbol_table->{$routine} = [HexExtend($last_start), HexExtend($start_val)]; } $last_start = $start_val; $routine = $this_routine; } elsif (m/^Loaded image name: (.+)/) { # The win32 nm workalike emits information about the binary it is using. if ($main::opt_debug) { print STDERR "Using Image $1\n"; } } elsif (m/^PDB file name: (.+)/) { # The win32 nm workalike emits information about the pdb it is using. if ($main::opt_debug) { print STDERR "Using PDB $1\n"; } } } close(NM); # Handle the last line in the nm output. Unfortunately, we don't know # how big this last symbol is, because we don't know how big the file # is. For now, we just give it a size of 0. # TODO(csilvers): do better here. if (defined($routine) && $routine =~ m/$regexp/) { $symbol_table->{$routine} = [HexExtend($last_start), HexExtend($last_start)]; } return $symbol_table; } # Gets the procedure boundaries for all routines in "$image" whose names # match "$regexp" and returns them in a hashtable mapping from procedure # name to a two-element vector of [start address, end address]. # Will return an empty map if nm is not installed or not working properly. sub GetProcedureBoundaries { my $image = shift; my $regexp = shift; # If $image doesn't start with /, then put ./ in front of it. This works # around an obnoxious bug in our probing of nm -f behavior. # "nm -f $image" is supposed to fail on GNU nm, but if: # # a. $image starts with [BbSsPp] (for example, bin/foo/bar), AND # b. you have a.out in your current directory (a not uncommon occurence) # # then "nm -f $image" succeeds because -f only looks at the first letter of # the argument, which looks valid because it's [BbSsPp], and then since # there's no image provided, it looks for a.out and finds it. # # This regex makes sure that $image starts with . or /, forcing the -f # parsing to fail since . and / are not valid formats. $image =~ s#^[^/]#./$&#; # For libc libraries, the copy in /usr/lib/debug contains debugging symbols my $debugging = DebuggingLibrary($image); if ($debugging) { $image = $debugging; } my $nm = $obj_tool_map{"nm"}; my $cppfilt = $obj_tool_map{"c++filt"}; # nm can fail for two reasons: 1) $image isn't a debug library; 2) nm # binary doesn't support --demangle. In addition, for OS X we need # to use the -f flag to get 'flat' nm output (otherwise we don't sort # properly and get incorrect results). Unfortunately, GNU nm uses -f # in an incompatible way. So first we test whether our nm supports # --demangle and -f. my $demangle_flag = ""; my $cppfilt_flag = ""; my $to_devnull = ">$dev_null 2>&1"; if (system(ShellEscape($nm, "--demangle", "image") . $to_devnull) == 0) { # In this mode, we do "nm --demangle " $demangle_flag = "--demangle"; $cppfilt_flag = ""; } elsif (system(ShellEscape($cppfilt, $image) . $to_devnull) == 0) { # In this mode, we do "nm | c++filt" $cppfilt_flag = " | " . ShellEscape($cppfilt); }; my $flatten_flag = ""; if (system(ShellEscape($nm, "-f", $image) . $to_devnull) == 0) { $flatten_flag = "-f"; } # Finally, in the case $imagie isn't a debug library, we try again with # -D to at least get *exported* symbols. If we can't use --demangle, # we use c++filt instead, if it exists on this system. my @nm_commands = (ShellEscape($nm, "-n", $flatten_flag, $demangle_flag, $image) . " 2>$dev_null $cppfilt_flag", ShellEscape($nm, "-D", "-n", $flatten_flag, $demangle_flag, $image) . " 2>$dev_null $cppfilt_flag", # 6nm is for Go binaries ShellEscape("6nm", "$image") . " 2>$dev_null | sort", ); # If the executable is an MS Windows PDB-format executable, we'll # have set up obj_tool_map("nm_pdb"). In this case, we actually # want to use both unix nm and windows-specific nm_pdb, since # PDB-format executables can apparently include dwarf .o files. if (exists $obj_tool_map{"nm_pdb"}) { push(@nm_commands, ShellEscape($obj_tool_map{"nm_pdb"}, "--demangle", $image) . " 2>$dev_null"); } foreach my $nm_command (@nm_commands) { my $symbol_table = GetProcedureBoundariesViaNm($nm_command, $regexp); return $symbol_table if (%{$symbol_table}); } my $symbol_table = {}; return $symbol_table; } # The test vectors for AddressAdd/Sub/Inc are 8-16-nibble hex strings. # To make them more readable, we add underscores at interesting places. # This routine removes the underscores, producing the canonical representation # used by pprof to represent addresses, particularly in the tested routines. sub CanonicalHex { my $arg = shift; return join '', (split '_',$arg); } # Unit test for AddressAdd: sub AddressAddUnitTest { my $test_data_8 = shift; my $test_data_16 = shift; my $error_count = 0; my $fail_count = 0; my $pass_count = 0; # print STDERR "AddressAddUnitTest: ", 1+$#{$test_data_8}, " tests\n"; # First a few 8-nibble addresses. Note that this implementation uses # plain old arithmetic, so a quick sanity check along with verifying what # happens to overflow (we want it to wrap): $address_length = 8; foreach my $row (@{$test_data_8}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressAdd ($row->[0], $row->[1]); if ($sum ne $row->[2]) { printf STDERR "ERROR: %s != %s + %s = %s\n", $sum, $row->[0], $row->[1], $row->[2]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressAdd 32-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count = $fail_count; $fail_count = 0; $pass_count = 0; # Now 16-nibble addresses. $address_length = 16; foreach my $row (@{$test_data_16}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressAdd (CanonicalHex($row->[0]), CanonicalHex($row->[1])); my $expected = join '', (split '_',$row->[2]); if ($sum ne CanonicalHex($row->[2])) { printf STDERR "ERROR: %s != %s + %s = %s\n", $sum, $row->[0], $row->[1], $row->[2]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressAdd 64-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count += $fail_count; return $error_count; } # Unit test for AddressSub: sub AddressSubUnitTest { my $test_data_8 = shift; my $test_data_16 = shift; my $error_count = 0; my $fail_count = 0; my $pass_count = 0; # print STDERR "AddressSubUnitTest: ", 1+$#{$test_data_8}, " tests\n"; # First a few 8-nibble addresses. Note that this implementation uses # plain old arithmetic, so a quick sanity check along with verifying what # happens to overflow (we want it to wrap): $address_length = 8; foreach my $row (@{$test_data_8}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressSub ($row->[0], $row->[1]); if ($sum ne $row->[3]) { printf STDERR "ERROR: %s != %s - %s = %s\n", $sum, $row->[0], $row->[1], $row->[3]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressSub 32-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count = $fail_count; $fail_count = 0; $pass_count = 0; # Now 16-nibble addresses. $address_length = 16; foreach my $row (@{$test_data_16}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressSub (CanonicalHex($row->[0]), CanonicalHex($row->[1])); if ($sum ne CanonicalHex($row->[3])) { printf STDERR "ERROR: %s != %s - %s = %s\n", $sum, $row->[0], $row->[1], $row->[3]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressSub 64-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count += $fail_count; return $error_count; } # Unit test for AddressInc: sub AddressIncUnitTest { my $test_data_8 = shift; my $test_data_16 = shift; my $error_count = 0; my $fail_count = 0; my $pass_count = 0; # print STDERR "AddressIncUnitTest: ", 1+$#{$test_data_8}, " tests\n"; # First a few 8-nibble addresses. Note that this implementation uses # plain old arithmetic, so a quick sanity check along with verifying what # happens to overflow (we want it to wrap): $address_length = 8; foreach my $row (@{$test_data_8}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressInc ($row->[0]); if ($sum ne $row->[4]) { printf STDERR "ERROR: %s != %s + 1 = %s\n", $sum, $row->[0], $row->[4]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressInc 32-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count = $fail_count; $fail_count = 0; $pass_count = 0; # Now 16-nibble addresses. $address_length = 16; foreach my $row (@{$test_data_16}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressInc (CanonicalHex($row->[0])); if ($sum ne CanonicalHex($row->[4])) { printf STDERR "ERROR: %s != %s + 1 = %s\n", $sum, $row->[0], $row->[4]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressInc 64-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count += $fail_count; return $error_count; } # Driver for unit tests. # Currently just the address add/subtract/increment routines for 64-bit. sub RunUnitTests { my $error_count = 0; # This is a list of tuples [a, b, a+b, a-b, a+1] my $unit_test_data_8 = [ [qw(aaaaaaaa 50505050 fafafafa 5a5a5a5a aaaaaaab)], [qw(50505050 aaaaaaaa fafafafa a5a5a5a6 50505051)], [qw(ffffffff aaaaaaaa aaaaaaa9 55555555 00000000)], [qw(00000001 ffffffff 00000000 00000002 00000002)], [qw(00000001 fffffff0 fffffff1 00000011 00000002)], ]; my $unit_test_data_16 = [ # The implementation handles data in 7-nibble chunks, so those are the # interesting boundaries. [qw(aaaaaaaa 50505050 00_000000f_afafafa 00_0000005_a5a5a5a 00_000000a_aaaaaab)], [qw(50505050 aaaaaaaa 00_000000f_afafafa ff_ffffffa_5a5a5a6 00_0000005_0505051)], [qw(ffffffff aaaaaaaa 00_000001a_aaaaaa9 00_0000005_5555555 00_0000010_0000000)], [qw(00000001 ffffffff 00_0000010_0000000 ff_ffffff0_0000002 00_0000000_0000002)], [qw(00000001 fffffff0 00_000000f_ffffff1 ff_ffffff0_0000011 00_0000000_0000002)], [qw(00_a00000a_aaaaaaa 50505050 00_a00000f_afafafa 00_a000005_a5a5a5a 00_a00000a_aaaaaab)], [qw(0f_fff0005_0505050 aaaaaaaa 0f_fff000f_afafafa 0f_ffefffa_5a5a5a6 0f_fff0005_0505051)], [qw(00_000000f_fffffff 01_800000a_aaaaaaa 01_800001a_aaaaaa9 fe_8000005_5555555 00_0000010_0000000)], [qw(00_0000000_0000001 ff_fffffff_fffffff 00_0000000_0000000 00_0000000_0000002 00_0000000_0000002)], [qw(00_0000000_0000001 ff_fffffff_ffffff0 ff_fffffff_ffffff1 00_0000000_0000011 00_0000000_0000002)], ]; $error_count += AddressAddUnitTest($unit_test_data_8, $unit_test_data_16); $error_count += AddressSubUnitTest($unit_test_data_8, $unit_test_data_16); $error_count += AddressIncUnitTest($unit_test_data_8, $unit_test_data_16); if ($error_count > 0) { print STDERR $error_count, " errors: FAILED\n"; } else { print STDERR "PASS\n"; } exit ($error_count); } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������redis-2.6.16/deps/jemalloc/config.guess�������������������������������������������������������������0000775�0000000�0000000�00000127432�12207342231�0017762�0����������������������������������������������������������������������������������������������������ustar�00root����������������������������root����������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#! /bin/sh # Attempt to guess a canonical system name. # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, # 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, # 2011, 2012 Free Software Foundation, Inc. timestamp='2012-02-10' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see . # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Per Bothner. Please send patches (context # diff format) to and include a ChangeLog # entry. # # This script attempts to guess a canonical system name similar to # config.sub. If it succeeds, it prints the system name on stdout, and # exits with 0. Otherwise, it exits with 1. # # You can get the latest version of this script from: # http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: $0 [OPTION] Output the configuration name of the system \`$me' is run on. Operation modes: -h, --help print this help, then exit -t, --time-stamp print date of last modification, then exit -v, --version print version number, then exit Report bugs and patches to ." version="\ GNU config.guess ($timestamp) Originally written by Per Bothner. Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." help=" Try \`$me --help' for more information." # Parse command line while test $# -gt 0 ; do case $1 in --time-stamp | --time* | -t ) echo "$timestamp" ; exit ;; --version | -v ) echo "$version" ; exit ;; --help | --h* | -h ) echo "$usage"; exit ;; -- ) # Stop option processing shift; break ;; - ) # Use stdin as input. break ;; -* ) echo "$me: invalid option $1$help" >&2 exit 1 ;; * ) break ;; esac done if test $# != 0; then echo "$me: too many arguments$help" >&2 exit 1 fi trap 'exit 1' 1 2 15 # CC_FOR_BUILD -- compiler used by this script. Note that the use of a # compiler to aid in system detection is discouraged as it requires # temporary files to be created and, as you can see below, it is a # headache to deal with in a portable fashion. # Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still # use `HOST_CC' if defined, but it is deprecated. # Portable tmp directory creation inspired by the Autoconf team. set_cc_for_build=' trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ; trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ; : ${TMPDIR=/tmp} ; { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } || { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } || { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } || { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ; dummy=$tmp/dummy ; tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ; case $CC_FOR_BUILD,$HOST_CC,$CC in ,,) echo "int x;" > $dummy.c ; for c in cc gcc c89 c99 ; do if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then CC_FOR_BUILD="$c"; break ; fi ; done ; if test x"$CC_FOR_BUILD" = x ; then CC_FOR_BUILD=no_compiler_found ; fi ;; ,,*) CC_FOR_BUILD=$CC ;; ,*,*) CC_FOR_BUILD=$HOST_CC ;; esac ; set_cc_for_build= ;' # This is needed to find uname on a Pyramid OSx when run in the BSD universe. # (ghazi@noc.rutgers.edu 1994-08-24) if (test -f /.attbin/uname) >/dev/null 2>&1 ; then PATH=$PATH:/.attbin ; export PATH fi UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown # Note: order is significant - the case branches are not exclusive. case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in *:NetBSD:*:*) # NetBSD (nbsd) targets should (where applicable) match one or # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*, # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently # switched to ELF, *-*-netbsd* would select the old # object file format. This provides both forward # compatibility and a consistent mechanism for selecting the # object file format. # # Note: NetBSD doesn't particularly care about the vendor # portion of the name. We always set it to "unknown". sysctl="sysctl -n hw.machine_arch" UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \ /usr/sbin/$sysctl 2>/dev/null || echo unknown)` case "${UNAME_MACHINE_ARCH}" in armeb) machine=armeb-unknown ;; arm*) machine=arm-unknown ;; sh3el) machine=shl-unknown ;; sh3eb) machine=sh-unknown ;; sh5el) machine=sh5le-unknown ;; *) machine=${UNAME_MACHINE_ARCH}-unknown ;; esac # The Operating System including object format, if it has switched # to ELF recently, or will in the future. case "${UNAME_MACHINE_ARCH}" in arm*|i386|m68k|ns32k|sh3*|sparc|vax) eval $set_cc_for_build if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ELF__ then # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout). # Return netbsd for either. FIX? os=netbsd else os=netbsdelf fi ;; *) os=netbsd ;; esac # The OS release # Debian GNU/NetBSD machines have a different userland, and # thus, need a distinct triplet. However, they do not need # kernel version information, so it can be replaced with a # suitable tag, in the style of linux-gnu. case "${UNAME_VERSION}" in Debian*) release='-gnu' ;; *) release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'` ;; esac # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM: # contains redundant information, the shorter form: # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used. echo "${machine}-${os}${release}" exit ;; *:OpenBSD:*:*) UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'` echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE} exit ;; *:ekkoBSD:*:*) echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE} exit ;; *:SolidBSD:*:*) echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE} exit ;; macppc:MirBSD:*:*) echo powerpc-unknown-mirbsd${UNAME_RELEASE} exit ;; *:MirBSD:*:*) echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE} exit ;; alpha:OSF1:*:*) case $UNAME_RELEASE in *4.0) UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'` ;; *5.*) UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'` ;; esac # According to Compaq, /usr/sbin/psrinfo has been available on # OSF/1 and Tru64 systems produced since 1995. I hope that # covers most systems running today. This code pipes the CPU # types through head -n 1, so we only detect the type of CPU 0. ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1` case "$ALPHA_CPU_TYPE" in "EV4 (21064)") UNAME_MACHINE="alpha" ;; "EV4.5 (21064)") UNAME_MACHINE="alpha" ;; "LCA4 (21066/21068)") UNAME_MACHINE="alpha" ;; "EV5 (21164)") UNAME_MACHINE="alphaev5" ;; "EV5.6 (21164A)") UNAME_MACHINE="alphaev56" ;; "EV5.6 (21164PC)") UNAME_MACHINE="alphapca56" ;; "EV5.7 (21164PC)") UNAME_MACHINE="alphapca57" ;; "EV6 (21264)") UNAME_MACHINE="alphaev6" ;; "EV6.7 (21264A)") UNAME_MACHINE="alphaev67" ;; "EV6.8CB (21264C)") UNAME_MACHINE="alphaev68" ;; "EV6.8AL (21264B)") UNAME_MACHINE="alphaev68" ;; "EV6.8CX (21264D)") UNAME_MACHINE="alphaev68" ;; "EV6.9A (21264/EV69A)") UNAME_MACHINE="alphaev69" ;; "EV7 (21364)") UNAME_MACHINE="alphaev7" ;; "EV7.9 (21364A)") UNAME_MACHINE="alphaev79" ;; esac # A Pn.n version is a patched version. # A Vn.n version is a released version. # A Tn.n version is a released field test version. # A Xn.n version is an unreleased experimental baselevel. # 1.2 uses "1.2" for uname -r. echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` # Reset EXIT trap before exiting to avoid spurious non-zero exit code. exitcode=$? trap '' 0 exit $exitcode ;; Alpha\ *:Windows_NT*:*) # How do we know it's Interix rather than the generic POSIX subsystem? # Should we change UNAME_MACHINE based on the output of uname instead # of the specific Alpha model? echo alpha-pc-interix exit ;; 21064:Windows_NT:50:3) echo alpha-dec-winnt3.5 exit ;; Amiga*:UNIX_System_V:4.0:*) echo m68k-unknown-sysv4 exit ;; *:[Aa]miga[Oo][Ss]:*:*) echo ${UNAME_MACHINE}-unknown-amigaos exit ;; *:[Mm]orph[Oo][Ss]:*:*) echo ${UNAME_MACHINE}-unknown-morphos exit ;; *:OS/390:*:*) echo i370-ibm-openedition exit ;; *:z/VM:*:*) echo s390-ibm-zvmoe exit ;; *:OS400:*:*) echo powerpc-ibm-os400 exit ;; arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) echo arm-acorn-riscix${UNAME_RELEASE} exit ;; arm:riscos:*:*|arm:RISCOS:*:*) echo arm-unknown-riscos exit ;; SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*) echo hppa1.1-hitachi-hiuxmpp exit ;; Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*) # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE. if test "`(/bin/universe) 2>/dev/null`" = att ; then echo pyramid-pyramid-sysv3 else echo pyramid-pyramid-bsd fi exit ;; NILE*:*:*:dcosx) echo pyramid-pyramid-svr4 exit ;; DRS?6000:unix:4.0:6*) echo sparc-icl-nx6 exit ;; DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*) case `/usr/bin/uname -p` in sparc) echo sparc-icl-nx7; exit ;; esac ;; s390x:SunOS:*:*) echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4H:SunOS:5.*:*) echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*) echo i386-pc-auroraux${UNAME_RELEASE} exit ;; i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*) eval $set_cc_for_build SUN_ARCH="i386" # If there is a compiler, see if it is configured for 64-bit objects. # Note that the Sun cc does not turn __LP64__ into 1 like gcc does. # This test works for both compilers. if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \ (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \ grep IS_64BIT_ARCH >/dev/null then SUN_ARCH="x86_64" fi fi echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4*:SunOS:6*:*) # According to config.sub, this is the proper way to canonicalize # SunOS6. Hard to guess exactly what SunOS6 will be like, but # it's likely to be more like Solaris than SunOS4. echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4*:SunOS:*:*) case "`/usr/bin/arch -k`" in Series*|S4*) UNAME_RELEASE=`uname -v` ;; esac # Japanese Language versions have a version number like `4.1.3-JL'. echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'` exit ;; sun3*:SunOS:*:*) echo m68k-sun-sunos${UNAME_RELEASE} exit ;; sun*:*:4.2BSD:*) UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3 case "`/bin/arch`" in sun3) echo m68k-sun-sunos${UNAME_RELEASE} ;; sun4) echo sparc-sun-sunos${UNAME_RELEASE} ;; esac exit ;; aushp:SunOS:*:*) echo sparc-auspex-sunos${UNAME_RELEASE} exit ;; # The situation for MiNT is a little confusing. The machine name # can be virtually everything (everything which is not # "atarist" or "atariste" at least should have a processor # > m68000). The system name ranges from "MiNT" over "FreeMiNT" # to the lowercase version "mint" (or "freemint"). Finally # the system name "TOS" denotes a system which is actually not # MiNT. But MiNT is downward compatible to TOS, so this should # be no problem. atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) echo m68k-milan-mint${UNAME_RELEASE} exit ;; hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) echo m68k-hades-mint${UNAME_RELEASE} exit ;; *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) echo m68k-unknown-mint${UNAME_RELEASE} exit ;; m68k:machten:*:*) echo m68k-apple-machten${UNAME_RELEASE} exit ;; powerpc:machten:*:*) echo powerpc-apple-machten${UNAME_RELEASE} exit ;; RISC*:Mach:*:*) echo mips-dec-mach_bsd4.3 exit ;; RISC*:ULTRIX:*:*) echo mips-dec-ultrix${UNAME_RELEASE} exit ;; VAX*:ULTRIX*:*:*) echo vax-dec-ultrix${UNAME_RELEASE} exit ;; 2020:CLIX:*:* | 2430:CLIX:*:*) echo clipper-intergraph-clix${UNAME_RELEASE} exit ;; mips:*:*:UMIPS | mips:*:*:RISCos) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #ifdef __cplusplus #include /* for printf() prototype */ int main (int argc, char *argv[]) { #else int main (argc, argv) int argc; char *argv[]; { #endif #if defined (host_mips) && defined (MIPSEB) #if defined (SYSTYPE_SYSV) printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); #endif #if defined (SYSTYPE_SVR4) printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); #endif #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); #endif #endif exit (-1); } EOF $CC_FOR_BUILD -o $dummy $dummy.c && dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` && SYSTEM_NAME=`$dummy $dummyarg` && { echo "$SYSTEM_NAME"; exit; } echo mips-mips-riscos${UNAME_RELEASE} exit ;; Motorola:PowerMAX_OS:*:*) echo powerpc-motorola-powermax exit ;; Motorola:*:4.3:PL8-*) echo powerpc-harris-powermax exit ;; Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) echo powerpc-harris-powermax exit ;; Night_Hawk:Power_UNIX:*:*) echo powerpc-harris-powerunix exit ;; m88k:CX/UX:7*:*) echo m88k-harris-cxux7 exit ;; m88k:*:4*:R4*) echo m88k-motorola-sysv4 exit ;; m88k:*:3*:R3*) echo m88k-motorola-sysv3 exit ;; AViiON:dgux:*:*) # DG/UX returns AViiON for all architectures UNAME_PROCESSOR=`/usr/bin/uname -p` if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] then if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ [ ${TARGET_BINARY_INTERFACE}x = x ] then echo m88k-dg-dgux${UNAME_RELEASE} else echo m88k-dg-dguxbcs${UNAME_RELEASE} fi else echo i586-dg-dgux${UNAME_RELEASE} fi exit ;; M88*:DolphinOS:*:*) # DolphinOS (SVR3) echo m88k-dolphin-sysv3 exit ;; M88*:*:R3*:*) # Delta 88k system running SVR3 echo m88k-motorola-sysv3 exit ;; XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) echo m88k-tektronix-sysv3 exit ;; Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) echo m68k-tektronix-bsd exit ;; *:IRIX*:*:*) echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` exit ;; ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' i*86:AIX:*:*) echo i386-ibm-aix exit ;; ia64:AIX:*:*) if [ -x /usr/bin/oslevel ] ; then IBM_REV=`/usr/bin/oslevel` else IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} fi echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} exit ;; *:AIX:2:3) if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #include main() { if (!__power_pc()) exit(1); puts("powerpc-ibm-aix3.2.5"); exit(0); } EOF if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` then echo "$SYSTEM_NAME" else echo rs6000-ibm-aix3.2.5 fi elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then echo rs6000-ibm-aix3.2.4 else echo rs6000-ibm-aix3.2 fi exit ;; *:AIX:*:[4567]) IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then IBM_ARCH=rs6000 else IBM_ARCH=powerpc fi if [ -x /usr/bin/oslevel ] ; then IBM_REV=`/usr/bin/oslevel` else IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} fi echo ${IBM_ARCH}-ibm-aix${IBM_REV} exit ;; *:AIX:*:*) echo rs6000-ibm-aix exit ;; ibmrt:4.4BSD:*|romp-ibm:BSD:*) echo romp-ibm-bsd4.4 exit ;; ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to exit ;; # report: romp-ibm BSD 4.3 *:BOSX:*:*) echo rs6000-bull-bosx exit ;; DPX/2?00:B.O.S.:*:*) echo m68k-bull-sysv3 exit ;; 9000/[34]??:4.3bsd:1.*:*) echo m68k-hp-bsd exit ;; hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) echo m68k-hp-bsd4.4 exit ;; 9000/[34678]??:HP-UX:*:*) HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` case "${UNAME_MACHINE}" in 9000/31? ) HP_ARCH=m68000 ;; 9000/[34]?? ) HP_ARCH=m68k ;; 9000/[678][0-9][0-9]) if [ -x /usr/bin/getconf ]; then sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` case "${sc_cpu_version}" in 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 532) # CPU_PA_RISC2_0 case "${sc_kernel_bits}" in 32) HP_ARCH="hppa2.0n" ;; 64) HP_ARCH="hppa2.0w" ;; '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 esac ;; esac fi if [ "${HP_ARCH}" = "" ]; then eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #define _HPUX_SOURCE #include #include int main () { #if defined(_SC_KERNEL_BITS) long bits = sysconf(_SC_KERNEL_BITS); #endif long cpu = sysconf (_SC_CPU_VERSION); switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0"); break; case CPU_PA_RISC1_1: puts ("hppa1.1"); break; case CPU_PA_RISC2_0: #if defined(_SC_KERNEL_BITS) switch (bits) { case 64: puts ("hppa2.0w"); break; case 32: puts ("hppa2.0n"); break; default: puts ("hppa2.0"); break; } break; #else /* !defined(_SC_KERNEL_BITS) */ puts ("hppa2.0"); break; #endif default: puts ("hppa1.0"); break; } exit (0); } EOF (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` test -z "$HP_ARCH" && HP_ARCH=hppa fi ;; esac if [ ${HP_ARCH} = "hppa2.0w" ] then eval $set_cc_for_build # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler # generating 64-bit code. GNU and HP use different nomenclature: # # $ CC_FOR_BUILD=cc ./config.guess # => hppa2.0w-hp-hpux11.23 # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess # => hppa64-hp-hpux11.23 if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | grep -q __LP64__ then HP_ARCH="hppa2.0w" else HP_ARCH="hppa64" fi fi echo ${HP_ARCH}-hp-hpux${HPUX_REV} exit ;; ia64:HP-UX:*:*) HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` echo ia64-hp-hpux${HPUX_REV} exit ;; 3050*:HI-UX:*:*) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #include int main () { long cpu = sysconf (_SC_CPU_VERSION); /* The order matters, because CPU_IS_HP_MC68K erroneously returns true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct results, however. */ if (CPU_IS_PA_RISC (cpu)) { switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; default: puts ("hppa-hitachi-hiuxwe2"); break; } } else if (CPU_IS_HP_MC68K (cpu)) puts ("m68k-hitachi-hiuxwe2"); else puts ("unknown-hitachi-hiuxwe2"); exit (0); } EOF $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && { echo "$SYSTEM_NAME"; exit; } echo unknown-hitachi-hiuxwe2 exit ;; 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) echo hppa1.1-hp-bsd exit ;; 9000/8??:4.3bsd:*:*) echo hppa1.0-hp-bsd exit ;; *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) echo hppa1.0-hp-mpeix exit ;; hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) echo hppa1.1-hp-osf exit ;; hp8??:OSF1:*:*) echo hppa1.0-hp-osf exit ;; i*86:OSF1:*:*) if [ -x /usr/sbin/sysversion ] ; then echo ${UNAME_MACHINE}-unknown-osf1mk else echo ${UNAME_MACHINE}-unknown-osf1 fi exit ;; parisc*:Lites*:*:*) echo hppa1.1-hp-lites exit ;; C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) echo c1-convex-bsd exit ;; C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi exit ;; C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) echo c34-convex-bsd exit ;; C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) echo c38-convex-bsd exit ;; C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) echo c4-convex-bsd exit ;; CRAY*Y-MP:*:*:*) echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*[A-Z]90:*:*:*) echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ -e 's/\.[^.]*$/.X/' exit ;; CRAY*TS:*:*:*) echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*T3E:*:*:*) echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*SV1:*:*:*) echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; *:UNICOS/mp:*:*) echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; 5000:UNIX_System_V:4.*:*) FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} exit ;; sparc*:BSD/OS:*:*) echo sparc-unknown-bsdi${UNAME_RELEASE} exit ;; *:BSD/OS:*:*) echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} exit ;; *:FreeBSD:*:*) UNAME_PROCESSOR=`/usr/bin/uname -p` case ${UNAME_PROCESSOR} in amd64) echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; *) echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; esac exit ;; i*:CYGWIN*:*) echo ${UNAME_MACHINE}-pc-cygwin exit ;; *:MINGW*:*) echo ${UNAME_MACHINE}-pc-mingw32 exit ;; i*:MSYS*:*) echo ${UNAME_MACHINE}-pc-msys exit ;; i*:windows32*:*) # uname -m includes "-pc" on this system. echo ${UNAME_MACHINE}-mingw32 exit ;; i*:PW*:*) echo ${UNAME_MACHINE}-pc-pw32 exit ;; *:Interix*:*) case ${UNAME_MACHINE} in x86) echo i586-pc-interix${UNAME_RELEASE} exit ;; authenticamd | genuineintel | EM64T) echo x86_64-unknown-interix${UNAME_RELEASE} exit ;; IA64) echo ia64-unknown-interix${UNAME_RELEASE} exit ;; esac ;; [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) echo i${UNAME_MACHINE}-pc-mks exit ;; 8664:Windows_NT:*) echo x86_64-pc-mks exit ;; i*:Windows_NT*:* | Pentium*:Windows_NT*:*) # How do we know it's Interix rather than the generic POSIX subsystem? # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we # UNAME_MACHINE based on the output of uname instead of i386? echo i586-pc-interix exit ;; i*:UWIN*:*) echo ${UNAME_MACHINE}-pc-uwin exit ;; amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) echo x86_64-unknown-cygwin exit ;; p*:CYGWIN*:*) echo powerpcle-unknown-cygwin exit ;; prep*:SunOS:5.*:*) echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; *:GNU:*:*) # the GNU system echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` exit ;; *:GNU/*:*:*) # other systems with GNU libc and userland echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu exit ;; i*86:Minix:*:*) echo ${UNAME_MACHINE}-pc-minix exit ;; aarch64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; aarch64_be:Linux:*:*) UNAME_MACHINE=aarch64_be echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; alpha:Linux:*:*) case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in EV5) UNAME_MACHINE=alphaev5 ;; EV56) UNAME_MACHINE=alphaev56 ;; PCA56) UNAME_MACHINE=alphapca56 ;; PCA57) UNAME_MACHINE=alphapca56 ;; EV6) UNAME_MACHINE=alphaev6 ;; EV67) UNAME_MACHINE=alphaev67 ;; EV68*) UNAME_MACHINE=alphaev68 ;; esac objdump --private-headers /bin/sh | grep -q ld.so.1 if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC} exit ;; arm*:Linux:*:*) eval $set_cc_for_build if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_EABI__ then echo ${UNAME_MACHINE}-unknown-linux-gnu else if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_PCS_VFP then echo ${UNAME_MACHINE}-unknown-linux-gnueabi else echo ${UNAME_MACHINE}-unknown-linux-gnueabihf fi fi exit ;; avr32*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; cris:Linux:*:*) echo ${UNAME_MACHINE}-axis-linux-gnu exit ;; crisv32:Linux:*:*) echo ${UNAME_MACHINE}-axis-linux-gnu exit ;; frv:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; hexagon:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; i*86:Linux:*:*) LIBC=gnu eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #ifdef __dietlibc__ LIBC=dietlibc #endif EOF eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'` echo "${UNAME_MACHINE}-pc-linux-${LIBC}" exit ;; ia64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; m32r*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; m68*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; mips:Linux:*:* | mips64:Linux:*:*) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #undef CPU #undef ${UNAME_MACHINE} #undef ${UNAME_MACHINE}el #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) CPU=${UNAME_MACHINE}el #else #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) CPU=${UNAME_MACHINE} #else CPU= #endif #endif EOF eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'` test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; } ;; or32:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; padre:Linux:*:*) echo sparc-unknown-linux-gnu exit ;; parisc64:Linux:*:* | hppa64:Linux:*:*) echo hppa64-unknown-linux-gnu exit ;; parisc:Linux:*:* | hppa:Linux:*:*) # Look for CPU level case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in PA7*) echo hppa1.1-unknown-linux-gnu ;; PA8*) echo hppa2.0-unknown-linux-gnu ;; *) echo hppa-unknown-linux-gnu ;; esac exit ;; ppc64:Linux:*:*) echo powerpc64-unknown-linux-gnu exit ;; ppc:Linux:*:*) echo powerpc-unknown-linux-gnu exit ;; s390:Linux:*:* | s390x:Linux:*:*) echo ${UNAME_MACHINE}-ibm-linux exit ;; sh64*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; sh*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; sparc:Linux:*:* | sparc64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; tile*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; vax:Linux:*:*) echo ${UNAME_MACHINE}-dec-linux-gnu exit ;; x86_64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; xtensa*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; i*86:DYNIX/ptx:4*:*) # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. # earlier versions are messed up and put the nodename in both # sysname and nodename. echo i386-sequent-sysv4 exit ;; i*86:UNIX_SV:4.2MP:2.*) # Unixware is an offshoot of SVR4, but it has its own version # number series starting with 2... # I am not positive that other SVR4 systems won't match this, # I just have to hope. -- rms. # Use sysv4.2uw... so that sysv4* matches it. echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} exit ;; i*86:OS/2:*:*) # If we were able to find `uname', then EMX Unix compatibility # is probably installed. echo ${UNAME_MACHINE}-pc-os2-emx exit ;; i*86:XTS-300:*:STOP) echo ${UNAME_MACHINE}-unknown-stop exit ;; i*86:atheos:*:*) echo ${UNAME_MACHINE}-unknown-atheos exit ;; i*86:syllable:*:*) echo ${UNAME_MACHINE}-pc-syllable exit ;; i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) echo i386-unknown-lynxos${UNAME_RELEASE} exit ;; i*86:*DOS:*:*) echo ${UNAME_MACHINE}-pc-msdosdjgpp exit ;; i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} else echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} fi exit ;; i*86:*:5:[678]*) # UnixWare 7.x, OpenUNIX and OpenServer 6. case `/bin/uname -X | grep "^Machine"` in *486*) UNAME_MACHINE=i486 ;; *Pentium) UNAME_MACHINE=i586 ;; *Pent*|*Celeron) UNAME_MACHINE=i686 ;; esac echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} exit ;; i*86:*:3.2:*) if test -f /usr/options/cb.name; then UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ && UNAME_MACHINE=i586 (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ && UNAME_MACHINE=i686 (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ && UNAME_MACHINE=i686 echo ${UNAME_MACHINE}-pc-sco$UNAME_REL else echo ${UNAME_MACHINE}-pc-sysv32 fi exit ;; pc:*:*:*) # Left here for compatibility: # uname -m prints for DJGPP always 'pc', but it prints nothing about # the processor, so we play safe by assuming i586. # Note: whatever this is, it MUST be the same as what config.sub # prints for the "djgpp" host, or else GDB configury will decide that # this is a cross-build. echo i586-pc-msdosdjgpp exit ;; Intel:Mach:3*:*) echo i386-pc-mach3 exit ;; paragon:*:*:*) echo i860-intel-osf1 exit ;; i860:*:4.*:*) # i860-SVR4 if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4 else # Add other i860-SVR4 vendors below as they are discovered. echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4 fi exit ;; mini*:CTIX:SYS*5:*) # "miniframe" echo m68010-convergent-sysv exit ;; mc68k:UNIX:SYSTEM5:3.51m) echo m68k-convergent-sysv exit ;; M680?0:D-NIX:5.3:*) echo m68k-diab-dnix exit ;; M68*:*:R3V[5678]*:*) test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) OS_REL='' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3${OS_REL}; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4; exit; } ;; NCR*:*:4.2:* | MPRAS*:*:4.2:*) OS_REL='.3' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3${OS_REL}; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) echo m68k-unknown-lynxos${UNAME_RELEASE} exit ;; mc68030:UNIX_System_V:4.*:*) echo m68k-atari-sysv4 exit ;; TSUNAMI:LynxOS:2.*:*) echo sparc-unknown-lynxos${UNAME_RELEASE} exit ;; rs6000:LynxOS:2.*:*) echo rs6000-unknown-lynxos${UNAME_RELEASE} exit ;; PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*) echo powerpc-unknown-lynxos${UNAME_RELEASE} exit ;; SM[BE]S:UNIX_SV:*:*) echo mips-dde-sysv${UNAME_RELEASE} exit ;; RM*:ReliantUNIX-*:*:*) echo mips-sni-sysv4 exit ;; RM*:SINIX-*:*:*) echo mips-sni-sysv4 exit ;; *:SINIX-*:*:*) if uname -p 2>/dev/null >/dev/null ; then UNAME_MACHINE=`(uname -p) 2>/dev/null` echo ${UNAME_MACHINE}-sni-sysv4 else echo ns32k-sni-sysv fi exit ;; PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort # says echo i586-unisys-sysv4 exit ;; *:UNIX_System_V:4*:FTX*) # From Gerald Hewes . # How about differentiating between stratus architectures? -djm echo hppa1.1-stratus-sysv4 exit ;; *:*:*:FTX*) # From seanf@swdc.stratus.com. echo i860-stratus-sysv4 exit ;; i*86:VOS:*:*) # From Paul.Green@stratus.com. echo ${UNAME_MACHINE}-stratus-vos exit ;; *:VOS:*:*) # From Paul.Green@stratus.com. echo hppa1.1-stratus-vos exit ;; mc68*:A/UX:*:*) echo m68k-apple-aux${UNAME_RELEASE} exit ;; news*:NEWS-OS:6*:*) echo mips-sony-newsos6 exit ;; R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) if [ -d /usr/nec ]; then echo mips-nec-sysv${UNAME_RELEASE} else echo mips-unknown-sysv${UNAME_RELEASE} fi exit ;; BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. echo powerpc-be-beos exit ;; BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. echo powerpc-apple-beos exit ;; BePC:BeOS:*:*) # BeOS running on Intel PC compatible. echo i586-pc-beos exit ;; BePC:Haiku:*:*) # Haiku running on Intel PC compatible. echo i586-pc-haiku exit ;; SX-4:SUPER-UX:*:*) echo sx4-nec-superux${UNAME_RELEASE} exit ;; SX-5:SUPER-UX:*:*) echo sx5-nec-superux${UNAME_RELEASE} exit ;; SX-6:SUPER-UX:*:*) echo sx6-nec-superux${UNAME_RELEASE} exit ;; SX-7:SUPER-UX:*:*) echo sx7-nec-superux${UNAME_RELEASE} exit ;; SX-8:SUPER-UX:*:*) echo sx8-nec-superux${UNAME_RELEASE} exit ;; SX-8R:SUPER-UX:*:*) echo sx8r-nec-superux${UNAME_RELEASE} exit ;; Power*:Rhapsody:*:*) echo powerpc-apple-rhapsody${UNAME_RELEASE} exit ;; *:Rhapsody:*:*) echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE} exit ;; *:Darwin:*:*) UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown case $UNAME_PROCESSOR in i386) eval $set_cc_for_build if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \ (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \ grep IS_64BIT_ARCH >/dev/null then UNAME_PROCESSOR="x86_64" fi fi ;; unknown) UNAME_PROCESSOR=powerpc ;; esac echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE} exit ;; *:procnto*:*:* | *:QNX:[0123456789]*:*) UNAME_PROCESSOR=`uname -p` if test "$UNAME_PROCESSOR" = "x86"; then UNAME_PROCESSOR=i386 UNAME_MACHINE=pc fi echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE} exit ;; *:QNX:*:4*) echo i386-pc-qnx exit ;; NEO-?:NONSTOP_KERNEL:*:*) echo neo-tandem-nsk${UNAME_RELEASE} exit ;; NSE-?:NONSTOP_KERNEL:*:*) echo nse-tandem-nsk${UNAME_RELEASE} exit ;; NSR-?:NONSTOP_KERNEL:*:*) echo nsr-tandem-nsk${UNAME_RELEASE} exit ;; *:NonStop-UX:*:*) echo mips-compaq-nonstopux exit ;; BS2000:POSIX*:*:*) echo bs2000-siemens-sysv exit ;; DS/*:UNIX_System_V:*:*) echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE} exit ;; *:Plan9:*:*) # "uname -m" is not consistent, so use $cputype instead. 386 # is converted to i386 for consistency with other x86 # operating systems. if test "$cputype" = "386"; then UNAME_MACHINE=i386 else UNAME_MACHINE="$cputype" fi echo ${UNAME_MACHINE}-unknown-plan9 exit ;; *:TOPS-10:*:*) echo pdp10-unknown-tops10 exit ;; *:TENEX:*:*) echo pdp10-unknown-tenex exit ;; KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) echo pdp10-dec-tops20 exit ;; XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) echo pdp10-xkl-tops20 exit ;; *:TOPS-20:*:*) echo pdp10-unknown-tops20 exit ;; *:ITS:*:*) echo pdp10-unknown-its exit ;; SEI:*:*:SEIUX) echo mips-sei-seiux${UNAME_RELEASE} exit ;; *:DragonFly:*:*) echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` exit ;; *:*VMS:*:*) UNAME_MACHINE=`(uname -p) 2>/dev/null` case "${UNAME_MACHINE}" in A*) echo alpha-dec-vms ; exit ;; I*) echo ia64-dec-vms ; exit ;; V*) echo vax-dec-vms ; exit ;; esac ;; *:XENIX:*:SysV) echo i386-pc-xenix exit ;; i*86:skyos:*:*) echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//' exit ;; i*86:rdos:*:*) echo ${UNAME_MACHINE}-pc-rdos exit ;; i*86:AROS:*:*) echo ${UNAME_MACHINE}-pc-aros exit ;; x86_64:VMkernel:*:*) echo ${UNAME_MACHINE}-unknown-esx exit ;; esac #echo '(No uname command or uname output not recognized.)' 1>&2 #echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 eval $set_cc_for_build cat >$dummy.c < # include #endif main () { #if defined (sony) #if defined (MIPSEB) /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed, I don't know.... */ printf ("mips-sony-bsd\n"); exit (0); #else #include printf ("m68k-sony-newsos%s\n", #ifdef NEWSOS4 "4" #else "" #endif ); exit (0); #endif #endif #if defined (__arm) && defined (__acorn) && defined (__unix) printf ("arm-acorn-riscix\n"); exit (0); #endif #if defined (hp300) && !defined (hpux) printf ("m68k-hp-bsd\n"); exit (0); #endif #if defined (NeXT) #if !defined (__ARCHITECTURE__) #define __ARCHITECTURE__ "m68k" #endif int version; version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; if (version < 4) printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version); else printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version); exit (0); #endif #if defined (MULTIMAX) || defined (n16) #if defined (UMAXV) printf ("ns32k-encore-sysv\n"); exit (0); #else #if defined (CMU) printf ("ns32k-encore-mach\n"); exit (0); #else printf ("ns32k-encore-bsd\n"); exit (0); #endif #endif #endif #if defined (__386BSD__) printf ("i386-pc-bsd\n"); exit (0); #endif #if defined (sequent) #if defined (i386) printf ("i386-sequent-dynix\n"); exit (0); #endif #if defined (ns32000) printf ("ns32k-sequent-dynix\n"); exit (0); #endif #endif #if defined (_SEQUENT_) struct utsname un; uname(&un); if (strncmp(un.version, "V2", 2) == 0) { printf ("i386-sequent-ptx2\n"); exit (0); } if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */ printf ("i386-sequent-ptx1\n"); exit (0); } printf ("i386-sequent-ptx\n"); exit (0); #endif #if defined (vax) # if !defined (ultrix) # include # if defined (BSD) # if BSD == 43 printf ("vax-dec-bsd4.3\n"); exit (0); # else # if BSD == 199006 printf ("vax-dec-bsd4.3reno\n"); exit (0); # else printf ("vax-dec-bsd\n"); exit (0); # endif # endif # else printf ("vax-dec-bsd\n"); exit (0); # endif # else printf ("vax-dec-ultrix\n"); exit (0); # endif #endif #if defined (alliant) && defined (i860) printf ("i860-alliant-bsd\n"); exit (0); #endif exit (1); } EOF $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` && { echo "$SYSTEM_NAME"; exit; } # Apollos put the system type in the environment. test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; } # Convex versions that predate uname can use getsysinfo(1) if [ -x /usr/convex/getsysinfo ] then case `getsysinfo -f cpu_type` in c1*) echo c1-convex-bsd exit ;; c2*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi exit ;; c34*) echo c34-convex-bsd exit ;; c38*) echo c38-convex-bsd exit ;; c4*) echo c4-convex-bsd exit ;; esac fi cat >&2 < in order to provide the needed information to handle your system. config.guess timestamp = $timestamp uname -m = `(uname -m) 2>/dev/null || echo unknown` uname -r = `(uname -r) 2>/dev/null || echo unknown` uname -s = `(uname -s) 2>/dev/null || echo unknown` uname -v = `(uname -v) 2>/dev/null || echo unknown` /usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` /bin/uname -X = `(/bin/uname -X) 2>/dev/null` hostinfo = `(hostinfo) 2>/dev/null` /bin/universe = `(/bin/universe) 2>/dev/null` /usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` /bin/arch = `(/bin/arch) 2>/dev/null` /usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` /usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` UNAME_MACHINE = ${UNAME_MACHINE} UNAME_RELEASE = ${UNAME_RELEASE} UNAME_SYSTEM = ${UNAME_SYSTEM} UNAME_VERSION = ${UNAME_VERSION} EOF exit 1 # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "timestamp='" # time-stamp-format: "%:y-%02m-%02d" # time-stamp-end: "'" # End: ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������redis-2.6.16/deps/jemalloc/config.stamp.in����������������������������������������������������������0000664�0000000�0000000�00000000000�12207342231�0020337�0����������������������������������������������������������������������������������������������������ustar�00root����������������������������root����������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������redis-2.6.16/deps/jemalloc/config.sub���������������������������������������������������������������0000775�0000000�0000000�00000105176�12207342231�0017426�0����������������������������������������������������������������������������������������������������ustar�00root����������������������������root����������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#! /bin/sh # Configuration validation subroutine script. # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, # 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, # 2011, 2012 Free Software Foundation, Inc. timestamp='2012-02-10' # This file is (in principle) common to ALL GNU software. # The presence of a machine in this file suggests that SOME GNU software # can handle that machine. It does not imply ALL GNU software can. # # This file is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see . # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Please send patches to . Submit a context # diff and a properly formatted GNU ChangeLog entry. # # Configuration subroutine to validate and canonicalize a configuration type. # Supply the specified configuration type as an argument. # If it is invalid, we print an error message on stderr and exit with code 1. # Otherwise, we print the canonical config type on stdout and succeed. # You can get the latest version of this script from: # http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD # This file is supposed to be the same for all GNU packages # and recognize all the CPU types, system types and aliases # that are meaningful with *any* GNU software. # Each package is responsible for reporting which valid configurations # it does not support. The user should be able to distinguish # a failure to support a valid configuration from a meaningless # configuration. # The goal of this file is to map all the various variations of a given # machine specification into a single specification in the form: # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM # or in some cases, the newer four-part form: # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM # It is wrong to echo any other type of specification. me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: $0 [OPTION] CPU-MFR-OPSYS $0 [OPTION] ALIAS Canonicalize a configuration name. Operation modes: -h, --help print this help, then exit -t, --time-stamp print date of last modification, then exit -v, --version print version number, then exit Report bugs and patches to ." version="\ GNU config.sub ($timestamp) Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." help=" Try \`$me --help' for more information." # Parse command line while test $# -gt 0 ; do case $1 in --time-stamp | --time* | -t ) echo "$timestamp" ; exit ;; --version | -v ) echo "$version" ; exit ;; --help | --h* | -h ) echo "$usage"; exit ;; -- ) # Stop option processing shift; break ;; - ) # Use stdin as input. break ;; -* ) echo "$me: invalid option $1$help" exit 1 ;; *local*) # First pass through any local machine types. echo $1 exit ;; * ) break ;; esac done case $# in 0) echo "$me: missing argument$help" >&2 exit 1;; 1) ;; *) echo "$me: too many arguments$help" >&2 exit 1;; esac # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any). # Here we must recognize all the valid KERNEL-OS combinations. maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'` case $maybe_os in nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \ linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \ knetbsd*-gnu* | netbsd*-gnu* | \ kopensolaris*-gnu* | \ storm-chaos* | os2-emx* | rtmk-nova*) os=-$maybe_os basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'` ;; android-linux) os=-linux-android basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown ;; *) basic_machine=`echo $1 | sed 's/-[^-]*$//'` if [ $basic_machine != $1 ] then os=`echo $1 | sed 's/.*-/-/'` else os=; fi ;; esac ### Let's recognize common machines as not being operating systems so ### that things like config.sub decstation-3100 work. We also ### recognize some manufacturers as not being operating systems, so we ### can provide default operating systems below. case $os in -sun*os*) # Prevent following clause from handling this invalid input. ;; -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ -apple | -axis | -knuth | -cray | -microblaze) os= basic_machine=$1 ;; -bluegene*) os=-cnk ;; -sim | -cisco | -oki | -wec | -winbond) os= basic_machine=$1 ;; -scout) ;; -wrs) os=-vxworks basic_machine=$1 ;; -chorusos*) os=-chorusos basic_machine=$1 ;; -chorusrdb) os=-chorusrdb basic_machine=$1 ;; -hiux*) os=-hiuxwe2 ;; -sco6) os=-sco5v6 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco5) os=-sco3.2v5 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco4) os=-sco3.2v4 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco3.2.[4-9]*) os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco3.2v[4-9]*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco5v6*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco*) os=-sco3.2v2 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -udk*) basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -isc) os=-isc2.2 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -clix*) basic_machine=clipper-intergraph ;; -isc*) basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -lynx*) os=-lynxos ;; -ptx*) basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` ;; -windowsnt*) os=`echo $os | sed -e 's/windowsnt/winnt/'` ;; -psos*) os=-psos ;; -mint | -mint[0-9]*) basic_machine=m68k-atari os=-mint ;; esac # Decode aliases for certain CPU-COMPANY combinations. case $basic_machine in # Recognize the basic CPU types without company name. # Some are omitted here because they have special meanings below. 1750a | 580 \ | a29k \ | aarch64 | aarch64_be \ | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ | am33_2.0 \ | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \ | be32 | be64 \ | bfin \ | c4x | clipper \ | d10v | d30v | dlx | dsp16xx \ | epiphany \ | fido | fr30 | frv \ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ | hexagon \ | i370 | i860 | i960 | ia64 \ | ip2k | iq2000 \ | le32 | le64 \ | lm32 \ | m32c | m32r | m32rle | m68000 | m68k | m88k \ | maxq | mb | microblaze | mcore | mep | metag \ | mips | mipsbe | mipseb | mipsel | mipsle \ | mips16 \ | mips64 | mips64el \ | mips64octeon | mips64octeonel \ | mips64orion | mips64orionel \ | mips64r5900 | mips64r5900el \ | mips64vr | mips64vrel \ | mips64vr4100 | mips64vr4100el \ | mips64vr4300 | mips64vr4300el \ | mips64vr5000 | mips64vr5000el \ | mips64vr5900 | mips64vr5900el \ | mipsisa32 | mipsisa32el \ | mipsisa32r2 | mipsisa32r2el \ | mipsisa64 | mipsisa64el \ | mipsisa64r2 | mipsisa64r2el \ | mipsisa64sb1 | mipsisa64sb1el \ | mipsisa64sr71k | mipsisa64sr71kel \ | mipstx39 | mipstx39el \ | mn10200 | mn10300 \ | moxie \ | mt \ | msp430 \ | nds32 | nds32le | nds32be \ | nios | nios2 \ | ns16k | ns32k \ | open8 \ | or32 \ | pdp10 | pdp11 | pj | pjl \ | powerpc | powerpc64 | powerpc64le | powerpcle \ | pyramid \ | rl78 | rx \ | score \ | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ | sh64 | sh64le \ | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ | spu \ | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ | ubicom32 \ | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ | we32k \ | x86 | xc16x | xstormy16 | xtensa \ | z8k | z80) basic_machine=$basic_machine-unknown ;; c54x) basic_machine=tic54x-unknown ;; c55x) basic_machine=tic55x-unknown ;; c6x) basic_machine=tic6x-unknown ;; m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip) basic_machine=$basic_machine-unknown os=-none ;; m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) ;; ms1) basic_machine=mt-unknown ;; strongarm | thumb | xscale) basic_machine=arm-unknown ;; xgate) basic_machine=$basic_machine-unknown os=-none ;; xscaleeb) basic_machine=armeb-unknown ;; xscaleel) basic_machine=armel-unknown ;; # We use `pc' rather than `unknown' # because (1) that's what they normally are, and # (2) the word "unknown" tends to confuse beginning users. i*86 | x86_64) basic_machine=$basic_machine-pc ;; # Object if more than one company name word. *-*-*) echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 exit 1 ;; # Recognize the basic CPU types with company name. 580-* \ | a29k-* \ | aarch64-* | aarch64_be-* \ | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \ | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ | avr-* | avr32-* \ | be32-* | be64-* \ | bfin-* | bs2000-* \ | c[123]* | c30-* | [cjt]90-* | c4x-* \ | clipper-* | craynv-* | cydra-* \ | d10v-* | d30v-* | dlx-* \ | elxsi-* \ | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ | h8300-* | h8500-* \ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ | hexagon-* \ | i*86-* | i860-* | i960-* | ia64-* \ | ip2k-* | iq2000-* \ | le32-* | le64-* \ | lm32-* \ | m32c-* | m32r-* | m32rle-* \ | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ | m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \ | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ | mips16-* \ | mips64-* | mips64el-* \ | mips64octeon-* | mips64octeonel-* \ | mips64orion-* | mips64orionel-* \ | mips64r5900-* | mips64r5900el-* \ | mips64vr-* | mips64vrel-* \ | mips64vr4100-* | mips64vr4100el-* \ | mips64vr4300-* | mips64vr4300el-* \ | mips64vr5000-* | mips64vr5000el-* \ | mips64vr5900-* | mips64vr5900el-* \ | mipsisa32-* | mipsisa32el-* \ | mipsisa32r2-* | mipsisa32r2el-* \ | mipsisa64-* | mipsisa64el-* \ | mipsisa64r2-* | mipsisa64r2el-* \ | mipsisa64sb1-* | mipsisa64sb1el-* \ | mipsisa64sr71k-* | mipsisa64sr71kel-* \ | mipstx39-* | mipstx39el-* \ | mmix-* \ | mt-* \ | msp430-* \ | nds32-* | nds32le-* | nds32be-* \ | nios-* | nios2-* \ | none-* | np1-* | ns16k-* | ns32k-* \ | open8-* \ | orion-* \ | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ | pyramid-* \ | rl78-* | romp-* | rs6000-* | rx-* \ | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ | sparclite-* \ | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \ | tahoe-* \ | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ | tile*-* \ | tron-* \ | ubicom32-* \ | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ | vax-* \ | we32k-* \ | x86-* | x86_64-* | xc16x-* | xps100-* \ | xstormy16-* | xtensa*-* \ | ymp-* \ | z8k-* | z80-*) ;; # Recognize the basic CPU types without company name, with glob match. xtensa*) basic_machine=$basic_machine-unknown ;; # Recognize the various machine names and aliases which stand # for a CPU type and a company and sometimes even an OS. 386bsd) basic_machine=i386-unknown os=-bsd ;; 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) basic_machine=m68000-att ;; 3b*) basic_machine=we32k-att ;; a29khif) basic_machine=a29k-amd os=-udi ;; abacus) basic_machine=abacus-unknown ;; adobe68k) basic_machine=m68010-adobe os=-scout ;; alliant | fx80) basic_machine=fx80-alliant ;; altos | altos3068) basic_machine=m68k-altos ;; am29k) basic_machine=a29k-none os=-bsd ;; amd64) basic_machine=x86_64-pc ;; amd64-*) basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` ;; amdahl) basic_machine=580-amdahl os=-sysv ;; amiga | amiga-*) basic_machine=m68k-unknown ;; amigaos | amigados) basic_machine=m68k-unknown os=-amigaos ;; amigaunix | amix) basic_machine=m68k-unknown os=-sysv4 ;; apollo68) basic_machine=m68k-apollo os=-sysv ;; apollo68bsd) basic_machine=m68k-apollo os=-bsd ;; aros) basic_machine=i386-pc os=-aros ;; aux) basic_machine=m68k-apple os=-aux ;; balance) basic_machine=ns32k-sequent os=-dynix ;; blackfin) basic_machine=bfin-unknown os=-linux ;; blackfin-*) basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'` os=-linux ;; bluegene*) basic_machine=powerpc-ibm os=-cnk ;; c54x-*) basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'` ;; c55x-*) basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'` ;; c6x-*) basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'` ;; c90) basic_machine=c90-cray os=-unicos ;; cegcc) basic_machine=arm-unknown os=-cegcc ;; convex-c1) basic_machine=c1-convex os=-bsd ;; convex-c2) basic_machine=c2-convex os=-bsd ;; convex-c32) basic_machine=c32-convex os=-bsd ;; convex-c34) basic_machine=c34-convex os=-bsd ;; convex-c38) basic_machine=c38-convex os=-bsd ;; cray | j90) basic_machine=j90-cray os=-unicos ;; craynv) basic_machine=craynv-cray os=-unicosmp ;; cr16 | cr16-*) basic_machine=cr16-unknown os=-elf ;; crds | unos) basic_machine=m68k-crds ;; crisv32 | crisv32-* | etraxfs*) basic_machine=crisv32-axis ;; cris | cris-* | etrax*) basic_machine=cris-axis ;; crx) basic_machine=crx-unknown os=-elf ;; da30 | da30-*) basic_machine=m68k-da30 ;; decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) basic_machine=mips-dec ;; decsystem10* | dec10*) basic_machine=pdp10-dec os=-tops10 ;; decsystem20* | dec20*) basic_machine=pdp10-dec os=-tops20 ;; delta | 3300 | motorola-3300 | motorola-delta \ | 3300-motorola | delta-motorola) basic_machine=m68k-motorola ;; delta88) basic_machine=m88k-motorola os=-sysv3 ;; dicos) basic_machine=i686-pc os=-dicos ;; djgpp) basic_machine=i586-pc os=-msdosdjgpp ;; dpx20 | dpx20-*) basic_machine=rs6000-bull os=-bosx ;; dpx2* | dpx2*-bull) basic_machine=m68k-bull os=-sysv3 ;; ebmon29k) basic_machine=a29k-amd os=-ebmon ;; elxsi) basic_machine=elxsi-elxsi os=-bsd ;; encore | umax | mmax) basic_machine=ns32k-encore ;; es1800 | OSE68k | ose68k | ose | OSE) basic_machine=m68k-ericsson os=-ose ;; fx2800) basic_machine=i860-alliant ;; genix) basic_machine=ns32k-ns ;; gmicro) basic_machine=tron-gmicro os=-sysv ;; go32) basic_machine=i386-pc os=-go32 ;; h3050r* | hiux*) basic_machine=hppa1.1-hitachi os=-hiuxwe2 ;; h8300hms) basic_machine=h8300-hitachi os=-hms ;; h8300xray) basic_machine=h8300-hitachi os=-xray ;; h8500hms) basic_machine=h8500-hitachi os=-hms ;; harris) basic_machine=m88k-harris os=-sysv3 ;; hp300-*) basic_machine=m68k-hp ;; hp300bsd) basic_machine=m68k-hp os=-bsd ;; hp300hpux) basic_machine=m68k-hp os=-hpux ;; hp3k9[0-9][0-9] | hp9[0-9][0-9]) basic_machine=hppa1.0-hp ;; hp9k2[0-9][0-9] | hp9k31[0-9]) basic_machine=m68000-hp ;; hp9k3[2-9][0-9]) basic_machine=m68k-hp ;; hp9k6[0-9][0-9] | hp6[0-9][0-9]) basic_machine=hppa1.0-hp ;; hp9k7[0-79][0-9] | hp7[0-79][0-9]) basic_machine=hppa1.1-hp ;; hp9k78[0-9] | hp78[0-9]) # FIXME: really hppa2.0-hp basic_machine=hppa1.1-hp ;; hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) # FIXME: really hppa2.0-hp basic_machine=hppa1.1-hp ;; hp9k8[0-9][13679] | hp8[0-9][13679]) basic_machine=hppa1.1-hp ;; hp9k8[0-9][0-9] | hp8[0-9][0-9]) basic_machine=hppa1.0-hp ;; hppa-next) os=-nextstep3 ;; hppaosf) basic_machine=hppa1.1-hp os=-osf ;; hppro) basic_machine=hppa1.1-hp os=-proelf ;; i370-ibm* | ibm*) basic_machine=i370-ibm ;; i*86v32) basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` os=-sysv32 ;; i*86v4*) basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` os=-sysv4 ;; i*86v) basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` os=-sysv ;; i*86sol2) basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` os=-solaris2 ;; i386mach) basic_machine=i386-mach os=-mach ;; i386-vsta | vsta) basic_machine=i386-unknown os=-vsta ;; iris | iris4d) basic_machine=mips-sgi case $os in -irix*) ;; *) os=-irix4 ;; esac ;; isi68 | isi) basic_machine=m68k-isi os=-sysv ;; m68knommu) basic_machine=m68k-unknown os=-linux ;; m68knommu-*) basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'` os=-linux ;; m88k-omron*) basic_machine=m88k-omron ;; magnum | m3230) basic_machine=mips-mips os=-sysv ;; merlin) basic_machine=ns32k-utek os=-sysv ;; microblaze) basic_machine=microblaze-xilinx ;; mingw32) basic_machine=i386-pc os=-mingw32 ;; mingw32ce) basic_machine=arm-unknown os=-mingw32ce ;; miniframe) basic_machine=m68000-convergent ;; *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) basic_machine=m68k-atari os=-mint ;; mips3*-*) basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` ;; mips3*) basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown ;; monitor) basic_machine=m68k-rom68k os=-coff ;; morphos) basic_machine=powerpc-unknown os=-morphos ;; msdos) basic_machine=i386-pc os=-msdos ;; ms1-*) basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'` ;; msys) basic_machine=i386-pc os=-msys ;; mvs) basic_machine=i370-ibm os=-mvs ;; nacl) basic_machine=le32-unknown os=-nacl ;; ncr3000) basic_machine=i486-ncr os=-sysv4 ;; netbsd386) basic_machine=i386-unknown os=-netbsd ;; netwinder) basic_machine=armv4l-rebel os=-linux ;; news | news700 | news800 | news900) basic_machine=m68k-sony os=-newsos ;; news1000) basic_machine=m68030-sony os=-newsos ;; news-3600 | risc-news) basic_machine=mips-sony os=-newsos ;; necv70) basic_machine=v70-nec os=-sysv ;; next | m*-next ) basic_machine=m68k-next case $os in -nextstep* ) ;; -ns2*) os=-nextstep2 ;; *) os=-nextstep3 ;; esac ;; nh3000) basic_machine=m68k-harris os=-cxux ;; nh[45]000) basic_machine=m88k-harris os=-cxux ;; nindy960) basic_machine=i960-intel os=-nindy ;; mon960) basic_machine=i960-intel os=-mon960 ;; nonstopux) basic_machine=mips-compaq os=-nonstopux ;; np1) basic_machine=np1-gould ;; neo-tandem) basic_machine=neo-tandem ;; nse-tandem) basic_machine=nse-tandem ;; nsr-tandem) basic_machine=nsr-tandem ;; op50n-* | op60c-*) basic_machine=hppa1.1-oki os=-proelf ;; openrisc | openrisc-*) basic_machine=or32-unknown ;; os400) basic_machine=powerpc-ibm os=-os400 ;; OSE68000 | ose68000) basic_machine=m68000-ericsson os=-ose ;; os68k) basic_machine=m68k-none os=-os68k ;; pa-hitachi) basic_machine=hppa1.1-hitachi os=-hiuxwe2 ;; paragon) basic_machine=i860-intel os=-osf ;; parisc) basic_machine=hppa-unknown os=-linux ;; parisc-*) basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'` os=-linux ;; pbd) basic_machine=sparc-tti ;; pbb) basic_machine=m68k-tti ;; pc532 | pc532-*) basic_machine=ns32k-pc532 ;; pc98) basic_machine=i386-pc ;; pc98-*) basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'` ;; pentium | p5 | k5 | k6 | nexgen | viac3) basic_machine=i586-pc ;; pentiumpro | p6 | 6x86 | athlon | athlon_*) basic_machine=i686-pc ;; pentiumii | pentium2 | pentiumiii | pentium3) basic_machine=i686-pc ;; pentium4) basic_machine=i786-pc ;; pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'` ;; pentiumpro-* | p6-* | 6x86-* | athlon-*) basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` ;; pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` ;; pentium4-*) basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'` ;; pn) basic_machine=pn-gould ;; power) basic_machine=power-ibm ;; ppc | ppcbe) basic_machine=powerpc-unknown ;; ppc-* | ppcbe-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` ;; ppcle | powerpclittle | ppc-le | powerpc-little) basic_machine=powerpcle-unknown ;; ppcle-* | powerpclittle-*) basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'` ;; ppc64) basic_machine=powerpc64-unknown ;; ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'` ;; ppc64le | powerpc64little | ppc64-le | powerpc64-little) basic_machine=powerpc64le-unknown ;; ppc64le-* | powerpc64little-*) basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'` ;; ps2) basic_machine=i386-ibm ;; pw32) basic_machine=i586-unknown os=-pw32 ;; rdos) basic_machine=i386-pc os=-rdos ;; rom68k) basic_machine=m68k-rom68k os=-coff ;; rm[46]00) basic_machine=mips-siemens ;; rtpc | rtpc-*) basic_machine=romp-ibm ;; s390 | s390-*) basic_machine=s390-ibm ;; s390x | s390x-*) basic_machine=s390x-ibm ;; sa29200) basic_machine=a29k-amd os=-udi ;; sb1) basic_machine=mipsisa64sb1-unknown ;; sb1el) basic_machine=mipsisa64sb1el-unknown ;; sde) basic_machine=mipsisa32-sde os=-elf ;; sei) basic_machine=mips-sei os=-seiux ;; sequent) basic_machine=i386-sequent ;; sh) basic_machine=sh-hitachi os=-hms ;; sh5el) basic_machine=sh5le-unknown ;; sh64) basic_machine=sh64-unknown ;; sparclite-wrs | simso-wrs) basic_machine=sparclite-wrs os=-vxworks ;; sps7) basic_machine=m68k-bull os=-sysv2 ;; spur) basic_machine=spur-unknown ;; st2000) basic_machine=m68k-tandem ;; stratus) basic_machine=i860-stratus os=-sysv4 ;; strongarm-* | thumb-*) basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'` ;; sun2) basic_machine=m68000-sun ;; sun2os3) basic_machine=m68000-sun os=-sunos3 ;; sun2os4) basic_machine=m68000-sun os=-sunos4 ;; sun3os3) basic_machine=m68k-sun os=-sunos3 ;; sun3os4) basic_machine=m68k-sun os=-sunos4 ;; sun4os3) basic_machine=sparc-sun os=-sunos3 ;; sun4os4) basic_machine=sparc-sun os=-sunos4 ;; sun4sol2) basic_machine=sparc-sun os=-solaris2 ;; sun3 | sun3-*) basic_machine=m68k-sun ;; sun4) basic_machine=sparc-sun ;; sun386 | sun386i | roadrunner) basic_machine=i386-sun ;; sv1) basic_machine=sv1-cray os=-unicos ;; symmetry) basic_machine=i386-sequent os=-dynix ;; t3e) basic_machine=alphaev5-cray os=-unicos ;; t90) basic_machine=t90-cray os=-unicos ;; tile*) basic_machine=$basic_machine-unknown os=-linux-gnu ;; tx39) basic_machine=mipstx39-unknown ;; tx39el) basic_machine=mipstx39el-unknown ;; toad1) basic_machine=pdp10-xkl os=-tops20 ;; tower | tower-32) basic_machine=m68k-ncr ;; tpf) basic_machine=s390x-ibm os=-tpf ;; udi29k) basic_machine=a29k-amd os=-udi ;; ultra3) basic_machine=a29k-nyu os=-sym1 ;; v810 | necv810) basic_machine=v810-nec os=-none ;; vaxv) basic_machine=vax-dec os=-sysv ;; vms) basic_machine=vax-dec os=-vms ;; vpp*|vx|vx-*) basic_machine=f301-fujitsu ;; vxworks960) basic_machine=i960-wrs os=-vxworks ;; vxworks68) basic_machine=m68k-wrs os=-vxworks ;; vxworks29k) basic_machine=a29k-wrs os=-vxworks ;; w65*) basic_machine=w65-wdc os=-none ;; w89k-*) basic_machine=hppa1.1-winbond os=-proelf ;; xbox) basic_machine=i686-pc os=-mingw32 ;; xps | xps100) basic_machine=xps100-honeywell ;; xscale-* | xscalee[bl]-*) basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'` ;; ymp) basic_machine=ymp-cray os=-unicos ;; z8k-*-coff) basic_machine=z8k-unknown os=-sim ;; z80-*-coff) basic_machine=z80-unknown os=-sim ;; none) basic_machine=none-none os=-none ;; # Here we handle the default manufacturer of certain CPU types. It is in # some cases the only manufacturer, in others, it is the most popular. w89k) basic_machine=hppa1.1-winbond ;; op50n) basic_machine=hppa1.1-oki ;; op60c) basic_machine=hppa1.1-oki ;; romp) basic_machine=romp-ibm ;; mmix) basic_machine=mmix-knuth ;; rs6000) basic_machine=rs6000-ibm ;; vax) basic_machine=vax-dec ;; pdp10) # there are many clones, so DEC is not a safe bet basic_machine=pdp10-unknown ;; pdp11) basic_machine=pdp11-dec ;; we32k) basic_machine=we32k-att ;; sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele) basic_machine=sh-unknown ;; sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v) basic_machine=sparc-sun ;; cydra) basic_machine=cydra-cydrome ;; orion) basic_machine=orion-highlevel ;; orion105) basic_machine=clipper-highlevel ;; mac | mpw | mac-mpw) basic_machine=m68k-apple ;; pmac | pmac-mpw) basic_machine=powerpc-apple ;; *-unknown) # Make sure to match an already-canonicalized machine name. ;; *) echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 exit 1 ;; esac # Here we canonicalize certain aliases for manufacturers. case $basic_machine in *-digital*) basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'` ;; *-commodore*) basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'` ;; *) ;; esac # Decode manufacturer-specific aliases for certain operating systems. if [ x"$os" != x"" ] then case $os in # First match some system type aliases # that might get confused with valid system types. # -solaris* is a basic system type, with this one exception. -auroraux) os=-auroraux ;; -solaris1 | -solaris1.*) os=`echo $os | sed -e 's|solaris1|sunos4|'` ;; -solaris) os=-solaris2 ;; -svr4*) os=-sysv4 ;; -unixware*) os=-sysv4.2uw ;; -gnu/linux*) os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'` ;; # First accept the basic system types. # The portable systems comes first. # Each alternative MUST END IN A *, to match a version number. # -sysv* is not here because it comes later, after sysvr4. -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \ | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\ | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \ | -sym* | -kopensolaris* \ | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \ | -aos* | -aros* \ | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \ | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \ | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \ | -openbsd* | -solidbsd* \ | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \ | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \ | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \ | -chorusos* | -chorusrdb* | -cegcc* \ | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ | -mingw32* | -linux-gnu* | -linux-android* \ | -linux-newlib* | -linux-uclibc* \ | -uxpv* | -beos* | -mpeix* | -udk* \ | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \ | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \ | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \ | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \ | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \ | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \ | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*) # Remember, each alternative MUST END IN *, to match a version number. ;; -qnx*) case $basic_machine in x86-* | i*86-*) ;; *) os=-nto$os ;; esac ;; -nto-qnx*) ;; -nto*) os=`echo $os | sed -e 's|nto|nto-qnx|'` ;; -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \ | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \ | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*) ;; -mac*) os=`echo $os | sed -e 's|mac|macos|'` ;; -linux-dietlibc) os=-linux-dietlibc ;; -linux*) os=`echo $os | sed -e 's|linux|linux-gnu|'` ;; -sunos5*) os=`echo $os | sed -e 's|sunos5|solaris2|'` ;; -sunos6*) os=`echo $os | sed -e 's|sunos6|solaris3|'` ;; -opened*) os=-openedition ;; -os400*) os=-os400 ;; -wince*) os=-wince ;; -osfrose*) os=-osfrose ;; -osf*) os=-osf ;; -utek*) os=-bsd ;; -dynix*) os=-bsd ;; -acis*) os=-aos ;; -atheos*) os=-atheos ;; -syllable*) os=-syllable ;; -386bsd) os=-bsd ;; -ctix* | -uts*) os=-sysv ;; -nova*) os=-rtmk-nova ;; -ns2 ) os=-nextstep2 ;; -nsk*) os=-nsk ;; # Preserve the version number of sinix5. -sinix5.*) os=`echo $os | sed -e 's|sinix|sysv|'` ;; -sinix*) os=-sysv4 ;; -tpf*) os=-tpf ;; -triton*) os=-sysv3 ;; -oss*) os=-sysv3 ;; -svr4) os=-sysv4 ;; -svr3) os=-sysv3 ;; -sysvr4) os=-sysv4 ;; # This must come after -sysvr4. -sysv*) ;; -ose*) os=-ose ;; -es1800*) os=-ose ;; -xenix) os=-xenix ;; -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) os=-mint ;; -aros*) os=-aros ;; -kaos*) os=-kaos ;; -zvmoe) os=-zvmoe ;; -dicos*) os=-dicos ;; -nacl*) ;; -none) ;; *) # Get rid of the `-' at the beginning of $os. os=`echo $os | sed 's/[^-]*-//'` echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2 exit 1 ;; esac else # Here we handle the default operating systems that come with various machines. # The value should be what the vendor currently ships out the door with their # machine or put another way, the most popular os provided with the machine. # Note that if you're going to try to match "-MANUFACTURER" here (say, # "-sun"), then you have to tell the case statement up towards the top # that MANUFACTURER isn't an operating system. Otherwise, code above # will signal an error saying that MANUFACTURER isn't an operating # system, and we'll never get to this point. case $basic_machine in score-*) os=-elf ;; spu-*) os=-elf ;; *-acorn) os=-riscix1.2 ;; arm*-rebel) os=-linux ;; arm*-semi) os=-aout ;; c4x-* | tic4x-*) os=-coff ;; tic54x-*) os=-coff ;; tic55x-*) os=-coff ;; tic6x-*) os=-coff ;; # This must come before the *-dec entry. pdp10-*) os=-tops20 ;; pdp11-*) os=-none ;; *-dec | vax-*) os=-ultrix4.2 ;; m68*-apollo) os=-domain ;; i386-sun) os=-sunos4.0.2 ;; m68000-sun) os=-sunos3 ;; m68*-cisco) os=-aout ;; mep-*) os=-elf ;; mips*-cisco) os=-elf ;; mips*-*) os=-elf ;; or32-*) os=-coff ;; *-tti) # must be before sparc entry or we get the wrong os. os=-sysv3 ;; sparc-* | *-sun) os=-sunos4.1.1 ;; *-be) os=-beos ;; *-haiku) os=-haiku ;; *-ibm) os=-aix ;; *-knuth) os=-mmixware ;; *-wec) os=-proelf ;; *-winbond) os=-proelf ;; *-oki) os=-proelf ;; *-hp) os=-hpux ;; *-hitachi) os=-hiux ;; i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent) os=-sysv ;; *-cbm) os=-amigaos ;; *-dg) os=-dgux ;; *-dolphin) os=-sysv3 ;; m68k-ccur) os=-rtu ;; m88k-omron*) os=-luna ;; *-next ) os=-nextstep ;; *-sequent) os=-ptx ;; *-crds) os=-unos ;; *-ns) os=-genix ;; i370-*) os=-mvs ;; *-next) os=-nextstep3 ;; *-gould) os=-sysv ;; *-highlevel) os=-bsd ;; *-encore) os=-bsd ;; *-sgi) os=-irix ;; *-siemens) os=-sysv4 ;; *-masscomp) os=-rtu ;; f30[01]-fujitsu | f700-fujitsu) os=-uxpv ;; *-rom68k) os=-coff ;; *-*bug) os=-coff ;; *-apple) os=-macos ;; *-atari*) os=-mint ;; *) os=-none ;; esac fi # Here we handle the case where we know the os, and the CPU type, but not the # manufacturer. We pick the logical manufacturer. vendor=unknown case $basic_machine in *-unknown) case $os in -riscix*) vendor=acorn ;; -sunos*) vendor=sun ;; -cnk*|-aix*) vendor=ibm ;; -beos*) vendor=be ;; -hpux*) vendor=hp ;; -mpeix*) vendor=hp ;; -hiux*) vendor=hitachi ;; -unos*) vendor=crds ;; -dgux*) vendor=dg ;; -luna*) vendor=omron ;; -genix*) vendor=ns ;; -mvs* | -opened*) vendor=ibm ;; -os400*) vendor=ibm ;; -ptx*) vendor=sequent ;; -tpf*) vendor=ibm ;; -vxsim* | -vxworks* | -windiss*) vendor=wrs ;; -aux*) vendor=apple ;; -hms*) vendor=hitachi ;; -mpw* | -macos*) vendor=apple ;; -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) vendor=atari ;; -vos*) vendor=stratus ;; esac basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"` ;; esac echo $basic_machine$os exit # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "timestamp='" # time-stamp-format: "%:y-%02m-%02d" # time-stamp-end: "'" # End: ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������redis-2.6.16/deps/jemalloc/configure����������������������������������������������������������������0000775�0000000�0000000�00000675041�12207342231�0017355�0����������������������������������������������������������������������������������������������������ustar�00root����������������������������root����������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#! /bin/sh # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.68. # # # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, # 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software # Foundation, Inc. # # # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## -------------------- ## ## M4sh Initialization. ## ## -------------------- ## # Be more Bourne compatible DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. Disable this feature. alias -g '${1+"$@"}'='"$@"' setopt NO_GLOB_SUBST else case `(set -o) 2>/dev/null` in #( *posix*) : set -o posix ;; #( *) : ;; esac fi as_nl=' ' export as_nl # Printing a long string crashes Solaris 7 /usr/bin/printf. as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo # Prefer a ksh shell builtin over an external printf program on Solaris, # but without wasting forks for bash or zsh. if test -z "$BASH_VERSION$ZSH_VERSION" \ && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then as_echo='print -r --' as_echo_n='print -rn --' elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then as_echo='printf %s\n' as_echo_n='printf %s' else if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' as_echo_n='/usr/ucb/echo -n' else as_echo_body='eval expr "X$1" : "X\\(.*\\)"' as_echo_n_body='eval arg=$1; case $arg in #( *"$as_nl"*) expr "X$arg" : "X\\(.*\\)$as_nl"; arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; esac; expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" ' export as_echo_n_body as_echo_n='sh -c $as_echo_n_body as_echo' fi export as_echo_body as_echo='sh -c $as_echo_body as_echo' fi # The user is always right. if test "${PATH_SEPARATOR+set}" != set; then PATH_SEPARATOR=: (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || PATH_SEPARATOR=';' } fi # IFS # We need space, tab and new line, in precisely that order. Quoting is # there to prevent editors from complaining about space-tab. # (If _AS_PATH_WALK were called with IFS unset, it would disable word # splitting by setting IFS to empty value.) IFS=" "" $as_nl" # Find who we are. Look in the path if we contain no directory separator. as_myself= case $0 in #(( *[\\/]* ) as_myself=$0 ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break done IFS=$as_save_IFS ;; esac # We did not find ourselves, most probably we were run as `sh COMMAND' # in which case we are not to be found in the path. if test "x$as_myself" = x; then as_myself=$0 fi if test ! -f "$as_myself"; then $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 exit 1 fi # Unset variables that we do not need and which cause bugs (e.g. in # pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" # suppresses any "Segmentation fault" message there. '((' could # trigger a bug in pdksh 5.2.14. for as_var in BASH_ENV ENV MAIL MAILPATH do eval test x\${$as_var+set} = xset \ && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : done PS1='$ ' PS2='> ' PS4='+ ' # NLS nuisances. LC_ALL=C export LC_ALL LANGUAGE=C export LANGUAGE # CDPATH. (unset CDPATH) >/dev/null 2>&1 && unset CDPATH if test "x$CONFIG_SHELL" = x; then as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which # is contrary to our usage. Disable this feature. alias -g '\${1+\"\$@\"}'='\"\$@\"' setopt NO_GLOB_SUBST else case \`(set -o) 2>/dev/null\` in #( *posix*) : set -o posix ;; #( *) : ;; esac fi " as_required="as_fn_return () { (exit \$1); } as_fn_success () { as_fn_return 0; } as_fn_failure () { as_fn_return 1; } as_fn_ret_success () { return 0; } as_fn_ret_failure () { return 1; } exitcode=0 as_fn_success || { exitcode=1; echo as_fn_success failed.; } as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; } as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; } as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; } if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then : else exitcode=1; echo positional parameters were not saved. fi test x\$exitcode = x0 || exit 1" as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" && test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1 test \$(( 1 + 1 )) = 2 || exit 1" if (eval "$as_required") 2>/dev/null; then : as_have_required=yes else as_have_required=no fi if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then : else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR as_found=false for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. as_found=: case $as_dir in #( /*) for as_base in sh bash ksh sh5; do # Try only shells that exist, to save several forks. as_shell=$as_dir/$as_base if { test -f "$as_shell" || test -f "$as_shell.exe"; } && { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then : CONFIG_SHELL=$as_shell as_have_required=yes if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then : break 2 fi fi done;; esac as_found=false done $as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } && { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then : CONFIG_SHELL=$SHELL as_have_required=yes fi; } IFS=$as_save_IFS if test "x$CONFIG_SHELL" != x; then : # We cannot yet assume a decent shell, so we have to provide a # neutralization value for shells without unset; and this also # works around shells that cannot unset nonexistent variables. # Preserve -v and -x to the replacement shell. BASH_ENV=/dev/null ENV=/dev/null (unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV export CONFIG_SHELL case $- in # (((( *v*x* | *x*v* ) as_opts=-vx ;; *v* ) as_opts=-v ;; *x* ) as_opts=-x ;; * ) as_opts= ;; esac exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"} fi if test x$as_have_required = xno; then : $as_echo "$0: This script requires a shell more modern than all" $as_echo "$0: the shells that I found on your system." if test x${ZSH_VERSION+set} = xset ; then $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should" $as_echo "$0: be upgraded to zsh 4.3.4 or later." else $as_echo "$0: Please tell bug-autoconf@gnu.org about your system, $0: including any error possibly output before this $0: message. Then install a modern shell, or manually run $0: the script under such a shell if you do have one." fi exit 1 fi fi fi SHELL=${CONFIG_SHELL-/bin/sh} export SHELL # Unset more variables known to interfere with behavior of common tools. CLICOLOR_FORCE= GREP_OPTIONS= unset CLICOLOR_FORCE GREP_OPTIONS ## --------------------- ## ## M4sh Shell Functions. ## ## --------------------- ## # as_fn_unset VAR # --------------- # Portably unset VAR. as_fn_unset () { { eval $1=; unset $1;} } as_unset=as_fn_unset # as_fn_set_status STATUS # ----------------------- # Set $? to STATUS, without forking. as_fn_set_status () { return $1 } # as_fn_set_status # as_fn_exit STATUS # ----------------- # Exit the shell with STATUS, even in a "trap 0" or "set -e" context. as_fn_exit () { set +e as_fn_set_status $1 exit $1 } # as_fn_exit # as_fn_mkdir_p # ------------- # Create "$as_dir" as a directory, including parents if necessary. as_fn_mkdir_p () { case $as_dir in #( -*) as_dir=./$as_dir;; esac test -d "$as_dir" || eval $as_mkdir_p || { as_dirs= while :; do case $as_dir in #( *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( *) as_qdir=$as_dir;; esac as_dirs="'$as_qdir' $as_dirs" as_dir=`$as_dirname -- "$as_dir" || $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ X"$as_dir" : 'X\(//\)[^/]' \| \ X"$as_dir" : 'X\(//\)$' \| \ X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || $as_echo X"$as_dir" | sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/ q } /^X\(\/\/\)[^/].*/{ s//\1/ q } /^X\(\/\/\)$/{ s//\1/ q } /^X\(\/\).*/{ s//\1/ q } s/.*/./; q'` test -d "$as_dir" && break done test -z "$as_dirs" || eval "mkdir $as_dirs" } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" } # as_fn_mkdir_p # as_fn_append VAR VALUE # ---------------------- # Append the text in VALUE to the end of the definition contained in VAR. Take # advantage of any shell optimizations that allow amortized linear growth over # repeated appends, instead of the typical quadratic growth present in naive # implementations. if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : eval 'as_fn_append () { eval $1+=\$2 }' else as_fn_append () { eval $1=\$$1\$2 } fi # as_fn_append # as_fn_arith ARG... # ------------------ # Perform arithmetic evaluation on the ARGs, and store the result in the # global $as_val. Take advantage of shells that can avoid forks. The arguments # must be portable across $(()) and expr. if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : eval 'as_fn_arith () { as_val=$(( $* )) }' else as_fn_arith () { as_val=`expr "$@" || test $? -eq 1` } fi # as_fn_arith # as_fn_error STATUS ERROR [LINENO LOG_FD] # ---------------------------------------- # Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are # provided, also output the error to LOG_FD, referencing LINENO. Then exit the # script with STATUS, using 1 if that was 0. as_fn_error () { as_status=$1; test $as_status -eq 0 && as_status=1 if test "$4"; then as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 fi $as_echo "$as_me: error: $2" >&2 as_fn_exit $as_status } # as_fn_error if expr a : '\(a\)' >/dev/null 2>&1 && test "X`expr 00001 : '.*\(...\)'`" = X001; then as_expr=expr else as_expr=false fi if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then as_basename=basename else as_basename=false fi if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then as_dirname=dirname else as_dirname=false fi as_me=`$as_basename -- "$0" || $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ X"$0" : 'X\(//\)$' \| \ X"$0" : 'X\(/\)' \| . 2>/dev/null || $as_echo X/"$0" | sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/ q } /^X\/\(\/\/\)$/{ s//\1/ q } /^X\/\(\/\).*/{ s//\1/ q } s/.*/./; q'` # Avoid depending upon Character Ranges. as_cr_letters='abcdefghijklmnopqrstuvwxyz' as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' as_cr_Letters=$as_cr_letters$as_cr_LETTERS as_cr_digits='0123456789' as_cr_alnum=$as_cr_Letters$as_cr_digits as_lineno_1=$LINENO as_lineno_1a=$LINENO as_lineno_2=$LINENO as_lineno_2a=$LINENO eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" && test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || { # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-) sed -n ' p /[$]LINENO/= ' <$as_myself | sed ' s/[$]LINENO.*/&-/ t lineno b :lineno N :loop s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ t loop s/-\n.*// ' >$as_me.lineno && chmod +x "$as_me.lineno" || { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } # Don't try to exec as it changes $[0], causing all sort of problems # (the dirname of $[0] is not the place where we might find the # original and so on. Autoconf is especially sensitive to this). . "./$as_me.lineno" # Exit status is that of the last command. exit } ECHO_C= ECHO_N= ECHO_T= case `echo -n x` in #((((( -n*) case `echo 'xy\c'` in *c*) ECHO_T=' ';; # ECHO_T is single tab character. xy) ECHO_C='\c';; *) echo `echo ksh88 bug on AIX 6.1` > /dev/null ECHO_T=' ';; esac;; *) ECHO_N='-n';; esac rm -f conf$$ conf$$.exe conf$$.file if test -d conf$$.dir; then rm -f conf$$.dir/conf$$.file else rm -f conf$$.dir mkdir conf$$.dir 2>/dev/null fi if (echo >conf$$.file) 2>/dev/null; then if ln -s conf$$.file conf$$ 2>/dev/null; then as_ln_s='ln -s' # ... but there are two gotchas: # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. # In both cases, we have to default to `cp -p'. ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || as_ln_s='cp -p' elif ln conf$$.file conf$$ 2>/dev/null; then as_ln_s=ln else as_ln_s='cp -p' fi else as_ln_s='cp -p' fi rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file rmdir conf$$.dir 2>/dev/null if mkdir -p . 2>/dev/null; then as_mkdir_p='mkdir -p "$as_dir"' else test -d ./-p && rmdir ./-p as_mkdir_p=false fi if test -x / >/dev/null 2>&1; then as_test_x='test -x' else if ls -dL / >/dev/null 2>&1; then as_ls_L_option=L else as_ls_L_option= fi as_test_x=' eval sh -c '\'' if test -d "$1"; then test -d "$1/."; else case $1 in #( -*)set "./$1";; esac; case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #(( ???[sx]*):;;*)false;;esac;fi '\'' sh ' fi as_executable_p=$as_test_x # Sed expression to map a string onto a valid CPP name. as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'" # Sed expression to map a string onto a valid variable name. as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'" test -n "$DJDIR" || exec 7<&0 &1 # Name of the host. # hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status, # so uname gets run too. ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q` # # Initializations. # ac_default_prefix=/usr/local ac_clean_files= ac_config_libobj_dir=. LIBOBJS= cross_compiling=no subdirs= MFLAGS= MAKEFLAGS= # Identity of this package. PACKAGE_NAME= PACKAGE_TARNAME= PACKAGE_VERSION= PACKAGE_STRING= PACKAGE_BUGREPORT= PACKAGE_URL= ac_unique_file="Makefile.in" # Factoring default headers for most tests. ac_includes_default="\ #include #ifdef HAVE_SYS_TYPES_H # include #endif #ifdef HAVE_SYS_STAT_H # include #endif #ifdef STDC_HEADERS # include # include #else # ifdef HAVE_STDLIB_H # include # endif #endif #ifdef HAVE_STRING_H # if !defined STDC_HEADERS && defined HAVE_MEMORY_H # include # endif # include #endif #ifdef HAVE_STRINGS_H # include #endif #ifdef HAVE_INTTYPES_H # include #endif #ifdef HAVE_STDINT_H # include #endif #ifdef HAVE_UNISTD_H # include #endif" ac_subst_vars='LTLIBOBJS LIBOBJS cfgoutputs_out cfgoutputs_in cfghdrs_out cfghdrs_in enable_tls enable_lazy_lock jemalloc_version_gid jemalloc_version_nrev jemalloc_version_bugfix jemalloc_version_minor jemalloc_version_major jemalloc_version enable_xmalloc enable_valgrind enable_utrace enable_fill enable_dss enable_munmap enable_mremap enable_tcache enable_prof enable_stats enable_debug install_suffix enable_experimental AUTOCONF LD AR RANLIB INSTALL_DATA INSTALL_SCRIPT INSTALL_PROGRAM enable_autogen RPATH_EXTRA CC_MM MKLIB LDTARGET CTARGET PIC_CFLAGS SOREV EXTRA_LDFLAGS DSO_LDFLAGS libprefix exe a o importlib so LD_PRELOAD_VAR RPATH abi host_os host_vendor host_cpu host build_os build_vendor build_cpu build EGREP GREP CPP OBJEXT EXEEXT ac_ct_CC CPPFLAGS LDFLAGS CFLAGS CC XSLROOT XSLTPROC MANDIR DATADIR LIBDIR INCLUDEDIR BINDIR PREFIX abs_objroot objroot abs_srcroot srcroot rev target_alias host_alias build_alias LIBS ECHO_T ECHO_N ECHO_C DEFS mandir localedir libdir psdir pdfdir dvidir htmldir infodir docdir oldincludedir includedir localstatedir sharedstatedir sysconfdir datadir datarootdir libexecdir sbindir bindir program_transform_name prefix exec_prefix PACKAGE_URL PACKAGE_BUGREPORT PACKAGE_STRING PACKAGE_VERSION PACKAGE_TARNAME PACKAGE_NAME PATH_SEPARATOR SHELL' ac_subst_files='' ac_user_opts=' enable_option_checking with_xslroot with_rpath enable_autogen enable_experimental with_mangling with_jemalloc_prefix with_private_namespace with_install_suffix enable_cc_silence enable_debug enable_stats enable_prof enable_prof_libunwind with_static_libunwind enable_prof_libgcc enable_prof_gcc enable_tcache enable_mremap enable_munmap enable_dss enable_fill enable_utrace enable_valgrind enable_xmalloc enable_lazy_lock enable_tls ' ac_precious_vars='build_alias host_alias target_alias CC CFLAGS LDFLAGS LIBS CPPFLAGS CPP' # Initialize some variables set by options. ac_init_help= ac_init_version=false ac_unrecognized_opts= ac_unrecognized_sep= # The variables have the same names as the options, with # dashes changed to underlines. cache_file=/dev/null exec_prefix=NONE no_create= no_recursion= prefix=NONE program_prefix=NONE program_suffix=NONE program_transform_name=s,x,x, silent= site= srcdir= verbose= x_includes=NONE x_libraries=NONE # Installation directory options. # These are left unexpanded so users can "make install exec_prefix=/foo" # and all the variables that are supposed to be based on exec_prefix # by default will actually change. # Use braces instead of parens because sh, perl, etc. also accept them. # (The list follows the same order as the GNU Coding Standards.) bindir='${exec_prefix}/bin' sbindir='${exec_prefix}/sbin' libexecdir='${exec_prefix}/libexec' datarootdir='${prefix}/share' datadir='${datarootdir}' sysconfdir='${prefix}/etc' sharedstatedir='${prefix}/com' localstatedir='${prefix}/var' includedir='${prefix}/include' oldincludedir='/usr/include' docdir='${datarootdir}/doc/${PACKAGE}' infodir='${datarootdir}/info' htmldir='${docdir}' dvidir='${docdir}' pdfdir='${docdir}' psdir='${docdir}' libdir='${exec_prefix}/lib' localedir='${datarootdir}/locale' mandir='${datarootdir}/man' ac_prev= ac_dashdash= for ac_option do # If the previous option needs an argument, assign it. if test -n "$ac_prev"; then eval $ac_prev=\$ac_option ac_prev= continue fi case $ac_option in *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;; *=) ac_optarg= ;; *) ac_optarg=yes ;; esac # Accept the important Cygnus configure options, so we can diagnose typos. case $ac_dashdash$ac_option in --) ac_dashdash=yes ;; -bindir | --bindir | --bindi | --bind | --bin | --bi) ac_prev=bindir ;; -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*) bindir=$ac_optarg ;; -build | --build | --buil | --bui | --bu) ac_prev=build_alias ;; -build=* | --build=* | --buil=* | --bui=* | --bu=*) build_alias=$ac_optarg ;; -cache-file | --cache-file | --cache-fil | --cache-fi \ | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c) ac_prev=cache_file ;; -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \ | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*) cache_file=$ac_optarg ;; --config-cache | -C) cache_file=config.cache ;; -datadir | --datadir | --datadi | --datad) ac_prev=datadir ;; -datadir=* | --datadir=* | --datadi=* | --datad=*) datadir=$ac_optarg ;; -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \ | --dataroo | --dataro | --datar) ac_prev=datarootdir ;; -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \ | --dataroot=* | --dataroo=* | --dataro=* | --datar=*) datarootdir=$ac_optarg ;; -disable-* | --disable-*) ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'` # Reject names that are not valid shell variable names. expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null && as_fn_error $? "invalid feature name: $ac_useropt" ac_useropt_orig=$ac_useropt ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'` case $ac_user_opts in *" "enable_$ac_useropt" "*) ;; *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig" ac_unrecognized_sep=', ';; esac eval enable_$ac_useropt=no ;; -docdir | --docdir | --docdi | --doc | --do) ac_prev=docdir ;; -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*) docdir=$ac_optarg ;; -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv) ac_prev=dvidir ;; -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*) dvidir=$ac_optarg ;; -enable-* | --enable-*) ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'` # Reject names that are not valid shell variable names. expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null && as_fn_error $? "invalid feature name: $ac_useropt" ac_useropt_orig=$ac_useropt ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'` case $ac_user_opts in *" "enable_$ac_useropt" "*) ;; *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig" ac_unrecognized_sep=', ';; esac eval enable_$ac_useropt=\$ac_optarg ;; -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \ | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \ | --exec | --exe | --ex) ac_prev=exec_prefix ;; -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \ | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \ | --exec=* | --exe=* | --ex=*) exec_prefix=$ac_optarg ;; -gas | --gas | --ga | --g) # Obsolete; use --with-gas. with_gas=yes ;; -help | --help | --hel | --he | -h) ac_init_help=long ;; -help=r* | --help=r* | --hel=r* | --he=r* | -hr*) ac_init_help=recursive ;; -help=s* | --help=s* | --hel=s* | --he=s* | -hs*) ac_init_help=short ;; -host | --host | --hos | --ho) ac_prev=host_alias ;; -host=* | --host=* | --hos=* | --ho=*) host_alias=$ac_optarg ;; -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht) ac_prev=htmldir ;; -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \ | --ht=*) htmldir=$ac_optarg ;; -includedir | --includedir | --includedi | --included | --include \ | --includ | --inclu | --incl | --inc) ac_prev=includedir ;; -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \ | --includ=* | --inclu=* | --incl=* | --inc=*) includedir=$ac_optarg ;; -infodir | --infodir | --infodi | --infod | --info | --inf) ac_prev=infodir ;; -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*) infodir=$ac_optarg ;; -libdir | --libdir | --libdi | --libd) ac_prev=libdir ;; -libdir=* | --libdir=* | --libdi=* | --libd=*) libdir=$ac_optarg ;; -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \ | --libexe | --libex | --libe) ac_prev=libexecdir ;; -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \ | --libexe=* | --libex=* | --libe=*) libexecdir=$ac_optarg ;; -localedir | --localedir | --localedi | --localed | --locale) ac_prev=localedir ;; -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*) localedir=$ac_optarg ;; -localstatedir | --localstatedir | --localstatedi | --localstated \ | --localstate | --localstat | --localsta | --localst | --locals) ac_prev=localstatedir ;; -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \ | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*) localstatedir=$ac_optarg ;; -mandir | --mandir | --mandi | --mand | --man | --ma | --m) ac_prev=mandir ;; -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*) mandir=$ac_optarg ;; -nfp | --nfp | --nf) # Obsolete; use --without-fp. with_fp=no ;; -no-create | --no-create | --no-creat | --no-crea | --no-cre \ | --no-cr | --no-c | -n) no_create=yes ;; -no-recursion | --no-recursion | --no-recursio | --no-recursi \ | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) no_recursion=yes ;; -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \ | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \ | --oldin | --oldi | --old | --ol | --o) ac_prev=oldincludedir ;; -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \ | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \ | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*) oldincludedir=$ac_optarg ;; -prefix | --prefix | --prefi | --pref | --pre | --pr | --p) ac_prev=prefix ;; -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*) prefix=$ac_optarg ;; -program-prefix | --program-prefix | --program-prefi | --program-pref \ | --program-pre | --program-pr | --program-p) ac_prev=program_prefix ;; -program-prefix=* | --program-prefix=* | --program-prefi=* \ | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*) program_prefix=$ac_optarg ;; -program-suffix | --program-suffix | --program-suffi | --program-suff \ | --program-suf | --program-su | --program-s) ac_prev=program_suffix ;; -program-suffix=* | --program-suffix=* | --program-suffi=* \ | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*) program_suffix=$ac_optarg ;; -program-transform-name | --program-transform-name \ | --program-transform-nam | --program-transform-na \ | --program-transform-n | --program-transform- \ | --program-transform | --program-transfor \ | --program-transfo | --program-transf \ | --program-trans | --program-tran \ | --progr-tra | --program-tr | --program-t) ac_prev=program_transform_name ;; -program-transform-name=* | --program-transform-name=* \ | --program-transform-nam=* | --program-transform-na=* \ | --program-transform-n=* | --program-transform-=* \ | --program-transform=* | --program-transfor=* \ | --program-transfo=* | --program-transf=* \ | --program-trans=* | --program-tran=* \ | --progr-tra=* | --program-tr=* | --program-t=*) program_transform_name=$ac_optarg ;; -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd) ac_prev=pdfdir ;; -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*) pdfdir=$ac_optarg ;; -psdir | --psdir | --psdi | --psd | --ps) ac_prev=psdir ;; -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*) psdir=$ac_optarg ;; -q | -quiet | --quiet | --quie | --qui | --qu | --q \ | -silent | --silent | --silen | --sile | --sil) silent=yes ;; -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb) ac_prev=sbindir ;; -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \ | --sbi=* | --sb=*) sbindir=$ac_optarg ;; -sharedstatedir | --sharedstatedir | --sharedstatedi \ | --sharedstated | --sharedstate | --sharedstat | --sharedsta \ | --sharedst | --shareds | --shared | --share | --shar \ | --sha | --sh) ac_prev=sharedstatedir ;; -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \ | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \ | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \ | --sha=* | --sh=*) sharedstatedir=$ac_optarg ;; -site | --site | --sit) ac_prev=site ;; -site=* | --site=* | --sit=*) site=$ac_optarg ;; -srcdir | --srcdir | --srcdi | --srcd | --src | --sr) ac_prev=srcdir ;; -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*) srcdir=$ac_optarg ;; -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \ | --syscon | --sysco | --sysc | --sys | --sy) ac_prev=sysconfdir ;; -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \ | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*) sysconfdir=$ac_optarg ;; -target | --target | --targe | --targ | --tar | --ta | --t) ac_prev=target_alias ;; -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*) target_alias=$ac_optarg ;; -v | -verbose | --verbose | --verbos | --verbo | --verb) verbose=yes ;; -version | --version | --versio | --versi | --vers | -V) ac_init_version=: ;; -with-* | --with-*) ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'` # Reject names that are not valid shell variable names. expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null && as_fn_error $? "invalid package name: $ac_useropt" ac_useropt_orig=$ac_useropt ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'` case $ac_user_opts in *" "with_$ac_useropt" "*) ;; *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig" ac_unrecognized_sep=', ';; esac eval with_$ac_useropt=\$ac_optarg ;; -without-* | --without-*) ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'` # Reject names that are not valid shell variable names. expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null && as_fn_error $? "invalid package name: $ac_useropt" ac_useropt_orig=$ac_useropt ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'` case $ac_user_opts in *" "with_$ac_useropt" "*) ;; *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig" ac_unrecognized_sep=', ';; esac eval with_$ac_useropt=no ;; --x) # Obsolete; use --with-x. with_x=yes ;; -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \ | --x-incl | --x-inc | --x-in | --x-i) ac_prev=x_includes ;; -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \ | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*) x_includes=$ac_optarg ;; -x-libraries | --x-libraries | --x-librarie | --x-librari \ | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l) ac_prev=x_libraries ;; -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \ | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*) x_libraries=$ac_optarg ;; -*) as_fn_error $? "unrecognized option: \`$ac_option' Try \`$0 --help' for more information" ;; *=*) ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='` # Reject names that are not valid shell variable names. case $ac_envvar in #( '' | [0-9]* | *[!_$as_cr_alnum]* ) as_fn_error $? "invalid variable name: \`$ac_envvar'" ;; esac eval $ac_envvar=\$ac_optarg export $ac_envvar ;; *) # FIXME: should be removed in autoconf 3.0. $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2 expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null && $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2 : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}" ;; esac done if test -n "$ac_prev"; then ac_option=--`echo $ac_prev | sed 's/_/-/g'` as_fn_error $? "missing argument to $ac_option" fi if test -n "$ac_unrecognized_opts"; then case $enable_option_checking in no) ;; fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;; *) $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;; esac fi # Check all directory arguments for consistency. for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \ datadir sysconfdir sharedstatedir localstatedir includedir \ oldincludedir docdir infodir htmldir dvidir pdfdir psdir \ libdir localedir mandir do eval ac_val=\$$ac_var # Remove trailing slashes. case $ac_val in */ ) ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'` eval $ac_var=\$ac_val;; esac # Be sure to have absolute directory names. case $ac_val in [\\/$]* | ?:[\\/]* ) continue;; NONE | '' ) case $ac_var in *prefix ) continue;; esac;; esac as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val" done # There might be people who depend on the old broken behavior: `$host' # used to hold the argument of --host etc. # FIXME: To remove some day. build=$build_alias host=$host_alias target=$target_alias # FIXME: To remove some day. if test "x$host_alias" != x; then if test "x$build_alias" = x; then cross_compiling=maybe $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't use --host. If a cross compiler is detected then cross compile mode will be used" >&2 elif test "x$build_alias" != "x$host_alias"; then cross_compiling=yes fi fi ac_tool_prefix= test -n "$host_alias" && ac_tool_prefix=$host_alias- test "$silent" = yes && exec 6>/dev/null ac_pwd=`pwd` && test -n "$ac_pwd" && ac_ls_di=`ls -di .` && ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` || as_fn_error $? "working directory cannot be determined" test "X$ac_ls_di" = "X$ac_pwd_ls_di" || as_fn_error $? "pwd does not report name of working directory" # Find the source files, if location was not specified. if test -z "$srcdir"; then ac_srcdir_defaulted=yes # Try the directory containing this script, then the parent directory. ac_confdir=`$as_dirname -- "$as_myself" || $as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ X"$as_myself" : 'X\(//\)[^/]' \| \ X"$as_myself" : 'X\(//\)$' \| \ X"$as_myself" : 'X\(/\)' \| . 2>/dev/null || $as_echo X"$as_myself" | sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/ q } /^X\(\/\/\)[^/].*/{ s//\1/ q } /^X\(\/\/\)$/{ s//\1/ q } /^X\(\/\).*/{ s//\1/ q } s/.*/./; q'` srcdir=$ac_confdir if test ! -r "$srcdir/$ac_unique_file"; then srcdir=.. fi else ac_srcdir_defaulted=no fi if test ! -r "$srcdir/$ac_unique_file"; then test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .." as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir" fi ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work" ac_abs_confdir=`( cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg" pwd)` # When building in place, set srcdir=. if test "$ac_abs_confdir" = "$ac_pwd"; then srcdir=. fi # Remove unnecessary trailing slashes from srcdir. # Double slashes in file names in object file debugging info # mess up M-x gdb in Emacs. case $srcdir in */) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;; esac for ac_var in $ac_precious_vars; do eval ac_env_${ac_var}_set=\${${ac_var}+set} eval ac_env_${ac_var}_value=\$${ac_var} eval ac_cv_env_${ac_var}_set=\${${ac_var}+set} eval ac_cv_env_${ac_var}_value=\$${ac_var} done # # Report the --help message. # if test "$ac_init_help" = "long"; then # Omit some internal or obsolete options to make the list less imposing. # This message is too long to be a string in the A/UX 3.1 sh. cat <<_ACEOF \`configure' configures this package to adapt to many kinds of systems. Usage: $0 [OPTION]... [VAR=VALUE]... To assign environment variables (e.g., CC, CFLAGS...), specify them as VAR=VALUE. See below for descriptions of some of the useful variables. Defaults for the options are specified in brackets. Configuration: -h, --help display this help and exit --help=short display options specific to this package --help=recursive display the short help of all the included packages -V, --version display version information and exit -q, --quiet, --silent do not print \`checking ...' messages --cache-file=FILE cache test results in FILE [disabled] -C, --config-cache alias for \`--cache-file=config.cache' -n, --no-create do not create output files --srcdir=DIR find the sources in DIR [configure dir or \`..'] Installation directories: --prefix=PREFIX install architecture-independent files in PREFIX [$ac_default_prefix] --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX [PREFIX] By default, \`make install' will install all the files in \`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify an installation prefix other than \`$ac_default_prefix' using \`--prefix', for instance \`--prefix=\$HOME'. For better control, use the options below. Fine tuning of the installation directories: --bindir=DIR user executables [EPREFIX/bin] --sbindir=DIR system admin executables [EPREFIX/sbin] --libexecdir=DIR program executables [EPREFIX/libexec] --sysconfdir=DIR read-only single-machine data [PREFIX/etc] --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com] --localstatedir=DIR modifiable single-machine data [PREFIX/var] --libdir=DIR object code libraries [EPREFIX/lib] --includedir=DIR C header files [PREFIX/include] --oldincludedir=DIR C header files for non-gcc [/usr/include] --datarootdir=DIR read-only arch.-independent data root [PREFIX/share] --datadir=DIR read-only architecture-independent data [DATAROOTDIR] --infodir=DIR info documentation [DATAROOTDIR/info] --localedir=DIR locale-dependent data [DATAROOTDIR/locale] --mandir=DIR man documentation [DATAROOTDIR/man] --docdir=DIR documentation root [DATAROOTDIR/doc/PACKAGE] --htmldir=DIR html documentation [DOCDIR] --dvidir=DIR dvi documentation [DOCDIR] --pdfdir=DIR pdf documentation [DOCDIR] --psdir=DIR ps documentation [DOCDIR] _ACEOF cat <<\_ACEOF System types: --build=BUILD configure for building on BUILD [guessed] --host=HOST cross-compile to build programs to run on HOST [BUILD] _ACEOF fi if test -n "$ac_init_help"; then cat <<\_ACEOF Optional Features: --disable-option-checking ignore unrecognized --enable/--with options --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no) --enable-FEATURE[=ARG] include FEATURE [ARG=yes] --enable-autogen Automatically regenerate configure output --disable-experimental Disable support for the experimental API --enable-cc-silence Silence irrelevant compiler warnings --enable-debug Build debugging code --disable-stats Disable statistics calculation/reporting --enable-prof Enable allocation profiling --enable-prof-libunwind Use libunwind for backtracing --disable-prof-libgcc Do not use libgcc for backtracing --disable-prof-gcc Do not use gcc intrinsics for backtracing --disable-tcache Disable per thread caches --enable-mremap Enable mremap(2) for huge realloc() --disable-munmap Disable VM deallocation via munmap(2) --enable-dss Enable allocation from DSS --disable-fill Disable support for junk/zero filling, quarantine, and redzones --enable-utrace Enable utrace(2)-based tracing --disable-valgrind Disable support for Valgrind --enable-xmalloc Support xmalloc option --enable-lazy-lock Enable lazy locking (only lock when multi-threaded) --disable-tls Disable thread-local storage (__thread keyword) Optional Packages: --with-PACKAGE[=ARG] use PACKAGE [ARG=yes] --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no) --with-xslroot= XSL stylesheet root path --with-rpath= Colon-separated rpath (ELF systems only) --with-mangling= Mangle symbols in --with-jemalloc-prefix= Prefix to prepend to all public APIs --with-private-namespace= Prefix to prepend to all library-private APIs --with-install-suffix= Suffix to append to all installed files --with-static-libunwind= Path to static libunwind library; use rather than dynamically linking Some influential environment variables: CC C compiler command CFLAGS C compiler flags LDFLAGS linker flags, e.g. -L if you have libraries in a nonstandard directory LIBS libraries to pass to the linker, e.g. -l CPPFLAGS (Objective) C/C++ preprocessor flags, e.g. -I if you have headers in a nonstandard directory CPP C preprocessor Use these variables to override the choices made by `configure' or to help it to find libraries and programs with nonstandard names/locations. Report bugs to the package provider. _ACEOF ac_status=$? fi if test "$ac_init_help" = "recursive"; then # If there are subdirs, report their specific --help. for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue test -d "$ac_dir" || { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } || continue ac_builddir=. case "$ac_dir" in .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;; *) ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'` # A ".." for each directory in $ac_dir_suffix. ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'` case $ac_top_builddir_sub in "") ac_top_builddir_sub=. ac_top_build_prefix= ;; *) ac_top_build_prefix=$ac_top_builddir_sub/ ;; esac ;; esac ac_abs_top_builddir=$ac_pwd ac_abs_builddir=$ac_pwd$ac_dir_suffix # for backward compatibility: ac_top_builddir=$ac_top_build_prefix case $srcdir in .) # We are building in place. ac_srcdir=. ac_top_srcdir=$ac_top_builddir_sub ac_abs_top_srcdir=$ac_pwd ;; [\\/]* | ?:[\\/]* ) # Absolute name. ac_srcdir=$srcdir$ac_dir_suffix; ac_top_srcdir=$srcdir ac_abs_top_srcdir=$srcdir ;; *) # Relative name. ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix ac_top_srcdir=$ac_top_build_prefix$srcdir ac_abs_top_srcdir=$ac_pwd/$srcdir ;; esac ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix cd "$ac_dir" || { ac_status=$?; continue; } # Check for guested configure. if test -f "$ac_srcdir/configure.gnu"; then echo && $SHELL "$ac_srcdir/configure.gnu" --help=recursive elif test -f "$ac_srcdir/configure"; then echo && $SHELL "$ac_srcdir/configure" --help=recursive else $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2 fi || ac_status=$? cd "$ac_pwd" || { ac_status=$?; break; } done fi test -n "$ac_init_help" && exit $ac_status if $ac_init_version; then cat <<\_ACEOF configure generated by GNU Autoconf 2.68 Copyright (C) 2010 Free Software Foundation, Inc. This configure script is free software; the Free Software Foundation gives unlimited permission to copy, distribute and modify it. _ACEOF exit fi ## ------------------------ ## ## Autoconf initialization. ## ## ------------------------ ## # ac_fn_c_try_compile LINENO # -------------------------- # Try to compile conftest.$ac_ext, and return whether this succeeded. ac_fn_c_try_compile () { as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack rm -f conftest.$ac_objext if { { ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_compile") 2>conftest.err ac_status=$? if test -s conftest.err; then grep -v '^ *+' conftest.err >conftest.er1 cat conftest.er1 >&5 mv -f conftest.er1 conftest.err fi $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then : ac_retval=0 else $as_echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_retval=1 fi eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno as_fn_set_status $ac_retval } # ac_fn_c_try_compile # ac_fn_c_try_cpp LINENO # ---------------------- # Try to preprocess conftest.$ac_ext, and return whether this succeeded. ac_fn_c_try_cpp () { as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack if { { ac_try="$ac_cpp conftest.$ac_ext" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err ac_status=$? if test -s conftest.err; then grep -v '^ *+' conftest.err >conftest.er1 cat conftest.er1 >&5 mv -f conftest.er1 conftest.err fi $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } > conftest.i && { test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || test ! -s conftest.err }; then : ac_retval=0 else $as_echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_retval=1 fi eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno as_fn_set_status $ac_retval } # ac_fn_c_try_cpp # ac_fn_c_try_run LINENO # ---------------------- # Try to link conftest.$ac_ext, and return whether this succeeded. Assumes # that executables *can* be run. ac_fn_c_try_run () { as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack if { { ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_link") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && { ac_try='./conftest$ac_exeext' { { case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_try") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; }; then : ac_retval=0 else $as_echo "$as_me: program exited with status $ac_status" >&5 $as_echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_retval=$ac_status fi rm -rf conftest.dSYM conftest_ipa8_conftest.oo eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno as_fn_set_status $ac_retval } # ac_fn_c_try_run # ac_fn_c_compute_int LINENO EXPR VAR INCLUDES # -------------------------------------------- # Tries to find the compile-time value of EXPR in a program that includes # INCLUDES, setting VAR accordingly. Returns whether the value could be # computed ac_fn_c_compute_int () { as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack if test "$cross_compiling" = yes; then # Depending upon the size, compute the lo and hi bounds. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $4 int main () { static int test_array [1 - 2 * !(($2) >= 0)]; test_array [0] = 0 ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_lo=0 ac_mid=0 while :; do cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $4 int main () { static int test_array [1 - 2 * !(($2) <= $ac_mid)]; test_array [0] = 0 ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_hi=$ac_mid; break else as_fn_arith $ac_mid + 1 && ac_lo=$as_val if test $ac_lo -le $ac_mid; then ac_lo= ac_hi= break fi as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext done else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $4 int main () { static int test_array [1 - 2 * !(($2) < 0)]; test_array [0] = 0 ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_hi=-1 ac_mid=-1 while :; do cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $4 int main () { static int test_array [1 - 2 * !(($2) >= $ac_mid)]; test_array [0] = 0 ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_lo=$ac_mid; break else as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val if test $ac_mid -le $ac_hi; then ac_lo= ac_hi= break fi as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext done else ac_lo= ac_hi= fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext # Binary search between lo and hi bounds. while test "x$ac_lo" != "x$ac_hi"; do as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $4 int main () { static int test_array [1 - 2 * !(($2) <= $ac_mid)]; test_array [0] = 0 ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_hi=$ac_mid else as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext done case $ac_lo in #(( ?*) eval "$3=\$ac_lo"; ac_retval=0 ;; '') ac_retval=1 ;; esac else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $4 static long int longval () { return $2; } static unsigned long int ulongval () { return $2; } #include #include int main () { FILE *f = fopen ("conftest.val", "w"); if (! f) return 1; if (($2) < 0) { long int i = longval (); if (i != ($2)) return 1; fprintf (f, "%ld", i); } else { unsigned long int i = ulongval (); if (i != ($2)) return 1; fprintf (f, "%lu", i); } /* Do not output a trailing newline, as this causes \r\n confusion on some platforms. */ return ferror (f) || fclose (f) != 0; ; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : echo >>conftest.val; read $3 &5 $as_echo_n "checking for $2... " >&6; } if eval \${$3+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $4 #include <$2> _ACEOF if ac_fn_c_try_compile "$LINENO"; then : eval "$3=yes" else eval "$3=no" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi eval ac_res=\$$3 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 $as_echo "$ac_res" >&6; } eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno } # ac_fn_c_check_header_compile # ac_fn_c_try_link LINENO # ----------------------- # Try to link conftest.$ac_ext, and return whether this succeeded. ac_fn_c_try_link () { as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack rm -f conftest.$ac_objext conftest$ac_exeext if { { ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_link") 2>conftest.err ac_status=$? if test -s conftest.err; then grep -v '^ *+' conftest.err >conftest.er1 cat conftest.er1 >&5 mv -f conftest.er1 conftest.err fi $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && { test "$cross_compiling" = yes || $as_test_x conftest$ac_exeext }; then : ac_retval=0 else $as_echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_retval=1 fi # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would # interfere with the next link command; also delete a directory that is # left behind by Apple's compiler. We do this before executing the actions. rm -rf conftest.dSYM conftest_ipa8_conftest.oo eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno as_fn_set_status $ac_retval } # ac_fn_c_try_link # ac_fn_c_check_func LINENO FUNC VAR # ---------------------------------- # Tests whether FUNC exists, setting the cache variable VAR accordingly ac_fn_c_check_func () { as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 $as_echo_n "checking for $2... " >&6; } if eval \${$3+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Define $2 to an innocuous variant, in case declares $2. For example, HP-UX 11i declares gettimeofday. */ #define $2 innocuous_$2 /* System header to define __stub macros and hopefully few prototypes, which can conflict with char $2 (); below. Prefer to if __STDC__ is defined, since exists even on freestanding compilers. */ #ifdef __STDC__ # include #else # include #endif #undef $2 /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char $2 (); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined __stub_$2 || defined __stub___$2 choke me #endif int main () { return $2 (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : eval "$3=yes" else eval "$3=no" fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi eval ac_res=\$$3 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 $as_echo "$ac_res" >&6; } eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno } # ac_fn_c_check_func # ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES # ------------------------------------------------------- # Tests whether HEADER exists, giving a warning if it cannot be compiled using # the include files in INCLUDES and setting the cache variable VAR # accordingly. ac_fn_c_check_header_mongrel () { as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack if eval \${$3+:} false; then : { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 $as_echo_n "checking for $2... " >&6; } if eval \${$3+:} false; then : $as_echo_n "(cached) " >&6 fi eval ac_res=\$$3 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 $as_echo "$ac_res" >&6; } else # Is the header compilable? { $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5 $as_echo_n "checking $2 usability... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $4 #include <$2> _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_header_compiler=yes else ac_header_compiler=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5 $as_echo "$ac_header_compiler" >&6; } # Is the header present? { $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5 $as_echo_n "checking $2 presence... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include <$2> _ACEOF if ac_fn_c_try_cpp "$LINENO"; then : ac_header_preproc=yes else ac_header_preproc=no fi rm -f conftest.err conftest.i conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5 $as_echo "$ac_header_preproc" >&6; } # So? What about this header? case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #(( yes:no: ) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5 $as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;} { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5 $as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;} ;; no:yes:* ) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5 $as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;} { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: check for missing prerequisite headers?" >&5 $as_echo "$as_me: WARNING: $2: check for missing prerequisite headers?" >&2;} { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5 $as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;} { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&5 $as_echo "$as_me: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&2;} { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5 $as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;} ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 $as_echo_n "checking for $2... " >&6; } if eval \${$3+:} false; then : $as_echo_n "(cached) " >&6 else eval "$3=\$ac_header_compiler" fi eval ac_res=\$$3 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 $as_echo "$ac_res" >&6; } fi eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno } # ac_fn_c_check_header_mongrel # ac_fn_c_check_type LINENO TYPE VAR INCLUDES # ------------------------------------------- # Tests whether TYPE exists after having included INCLUDES, setting cache # variable VAR accordingly. ac_fn_c_check_type () { as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 $as_echo_n "checking for $2... " >&6; } if eval \${$3+:} false; then : $as_echo_n "(cached) " >&6 else eval "$3=no" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $4 int main () { if (sizeof ($2)) return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $4 int main () { if (sizeof (($2))) return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : else eval "$3=yes" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi eval ac_res=\$$3 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 $as_echo "$ac_res" >&6; } eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno } # ac_fn_c_check_type cat >config.log <<_ACEOF This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. It was created by $as_me, which was generated by GNU Autoconf 2.68. Invocation command line was $ $0 $@ _ACEOF exec 5>>config.log { cat <<_ASUNAME ## --------- ## ## Platform. ## ## --------- ## hostname = `(hostname || uname -n) 2>/dev/null | sed 1q` uname -m = `(uname -m) 2>/dev/null || echo unknown` uname -r = `(uname -r) 2>/dev/null || echo unknown` uname -s = `(uname -s) 2>/dev/null || echo unknown` uname -v = `(uname -v) 2>/dev/null || echo unknown` /usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown` /bin/uname -X = `(/bin/uname -X) 2>/dev/null || echo unknown` /bin/arch = `(/bin/arch) 2>/dev/null || echo unknown` /usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null || echo unknown` /usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown` /usr/bin/hostinfo = `(/usr/bin/hostinfo) 2>/dev/null || echo unknown` /bin/machine = `(/bin/machine) 2>/dev/null || echo unknown` /usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown` /bin/universe = `(/bin/universe) 2>/dev/null || echo unknown` _ASUNAME as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. $as_echo "PATH: $as_dir" done IFS=$as_save_IFS } >&5 cat >&5 <<_ACEOF ## ----------- ## ## Core tests. ## ## ----------- ## _ACEOF # Keep a trace of the command line. # Strip out --no-create and --no-recursion so they do not pile up. # Strip out --silent because we don't want to record it for future runs. # Also quote any args containing shell meta-characters. # Make two passes to allow for proper duplicate-argument suppression. ac_configure_args= ac_configure_args0= ac_configure_args1= ac_must_keep_next=false for ac_pass in 1 2 do for ac_arg do case $ac_arg in -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;; -q | -quiet | --quiet | --quie | --qui | --qu | --q \ | -silent | --silent | --silen | --sile | --sil) continue ;; *\'*) ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; esac case $ac_pass in 1) as_fn_append ac_configure_args0 " '$ac_arg'" ;; 2) as_fn_append ac_configure_args1 " '$ac_arg'" if test $ac_must_keep_next = true; then ac_must_keep_next=false # Got value, back to normal. else case $ac_arg in *=* | --config-cache | -C | -disable-* | --disable-* \ | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ | -with-* | --with-* | -without-* | --without-* | --x) case "$ac_configure_args0 " in "$ac_configure_args1"*" '$ac_arg' "* ) continue ;; esac ;; -* ) ac_must_keep_next=true ;; esac fi as_fn_append ac_configure_args " '$ac_arg'" ;; esac done done { ac_configure_args0=; unset ac_configure_args0;} { ac_configure_args1=; unset ac_configure_args1;} # When interrupted or exit'd, cleanup temporary files, and complete # config.log. We remove comments because anyway the quotes in there # would cause problems or look ugly. # WARNING: Use '\'' to represent an apostrophe within the trap. # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug. trap 'exit_status=$? # Save into config.log some information that might help in debugging. { echo $as_echo "## ---------------- ## ## Cache variables. ## ## ---------------- ##" echo # The following way of writing the cache mishandles newlines in values, ( for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do eval ac_val=\$$ac_var case $ac_val in #( *${as_nl}*) case $ac_var in #( *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; esac case $ac_var in #( _ | IFS | as_nl) ;; #( BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( *) { eval $ac_var=; unset $ac_var;} ;; esac ;; esac done (set) 2>&1 | case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #( *${as_nl}ac_space=\ *) sed -n \ "s/'\''/'\''\\\\'\'''\''/g; s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p" ;; #( *) sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" ;; esac | sort ) echo $as_echo "## ----------------- ## ## Output variables. ## ## ----------------- ##" echo for ac_var in $ac_subst_vars do eval ac_val=\$$ac_var case $ac_val in *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;; esac $as_echo "$ac_var='\''$ac_val'\''" done | sort echo if test -n "$ac_subst_files"; then $as_echo "## ------------------- ## ## File substitutions. ## ## ------------------- ##" echo for ac_var in $ac_subst_files do eval ac_val=\$$ac_var case $ac_val in *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;; esac $as_echo "$ac_var='\''$ac_val'\''" done | sort echo fi if test -s confdefs.h; then $as_echo "## ----------- ## ## confdefs.h. ## ## ----------- ##" echo cat confdefs.h echo fi test "$ac_signal" != 0 && $as_echo "$as_me: caught signal $ac_signal" $as_echo "$as_me: exit $exit_status" } >&5 rm -f core *.core core.conftest.* && rm -f -r conftest* confdefs* conf$$* $ac_clean_files && exit $exit_status ' 0 for ac_signal in 1 2 13 15; do trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal done ac_signal=0 # confdefs.h avoids OS command line length limits that DEFS can exceed. rm -f -r conftest* confdefs.h $as_echo "/* confdefs.h */" > confdefs.h # Predefined preprocessor variables. cat >>confdefs.h <<_ACEOF #define PACKAGE_NAME "$PACKAGE_NAME" _ACEOF cat >>confdefs.h <<_ACEOF #define PACKAGE_TARNAME "$PACKAGE_TARNAME" _ACEOF cat >>confdefs.h <<_ACEOF #define PACKAGE_VERSION "$PACKAGE_VERSION" _ACEOF cat >>confdefs.h <<_ACEOF #define PACKAGE_STRING "$PACKAGE_STRING" _ACEOF cat >>confdefs.h <<_ACEOF #define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT" _ACEOF cat >>confdefs.h <<_ACEOF #define PACKAGE_URL "$PACKAGE_URL" _ACEOF # Let the site file select an alternate cache file if it wants to. # Prefer an explicitly selected file to automatically selected ones. ac_site_file1=NONE ac_site_file2=NONE if test -n "$CONFIG_SITE"; then # We do not want a PATH search for config.site. case $CONFIG_SITE in #(( -*) ac_site_file1=./$CONFIG_SITE;; */*) ac_site_file1=$CONFIG_SITE;; *) ac_site_file1=./$CONFIG_SITE;; esac elif test "x$prefix" != xNONE; then ac_site_file1=$prefix/share/config.site ac_site_file2=$prefix/etc/config.site else ac_site_file1=$ac_default_prefix/share/config.site ac_site_file2=$ac_default_prefix/etc/config.site fi for ac_site_file in "$ac_site_file1" "$ac_site_file2" do test "x$ac_site_file" = xNONE && continue if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5 $as_echo "$as_me: loading site script $ac_site_file" >&6;} sed 's/^/| /' "$ac_site_file" >&5 . "$ac_site_file" \ || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "failed to load site script $ac_site_file See \`config.log' for more details" "$LINENO" 5; } fi done if test -r "$cache_file"; then # Some versions of bash will fail to source /dev/null (special files # actually), so we avoid doing that. DJGPP emulates it as a regular file. if test /dev/null != "$cache_file" && test -f "$cache_file"; then { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5 $as_echo "$as_me: loading cache $cache_file" >&6;} case $cache_file in [\\/]* | ?:[\\/]* ) . "$cache_file";; *) . "./$cache_file";; esac fi else { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5 $as_echo "$as_me: creating cache $cache_file" >&6;} >$cache_file fi # Check that the precious variables saved in the cache have kept the same # value. ac_cache_corrupted=false for ac_var in $ac_precious_vars; do eval ac_old_set=\$ac_cv_env_${ac_var}_set eval ac_new_set=\$ac_env_${ac_var}_set eval ac_old_val=\$ac_cv_env_${ac_var}_value eval ac_new_val=\$ac_env_${ac_var}_value case $ac_old_set,$ac_new_set in set,) { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5 $as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;} ac_cache_corrupted=: ;; ,set) { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5 $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;} ac_cache_corrupted=: ;; ,);; *) if test "x$ac_old_val" != "x$ac_new_val"; then # differences in whitespace do not lead to failure. ac_old_val_w=`echo x $ac_old_val` ac_new_val_w=`echo x $ac_new_val` if test "$ac_old_val_w" != "$ac_new_val_w"; then { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5 $as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;} ac_cache_corrupted=: else { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5 $as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;} eval $ac_var=\$ac_old_val fi { $as_echo "$as_me:${as_lineno-$LINENO}: former value: \`$ac_old_val'" >&5 $as_echo "$as_me: former value: \`$ac_old_val'" >&2;} { $as_echo "$as_me:${as_lineno-$LINENO}: current value: \`$ac_new_val'" >&5 $as_echo "$as_me: current value: \`$ac_new_val'" >&2;} fi;; esac # Pass precious variables to config.status. if test "$ac_new_set" = set; then case $ac_new_val in *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;; *) ac_arg=$ac_var=$ac_new_val ;; esac case " $ac_configure_args " in *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy. *) as_fn_append ac_configure_args " '$ac_arg'" ;; esac fi done if $ac_cache_corrupted; then { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5 $as_echo "$as_me: error: changes in the environment can compromise the build" >&2;} as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5 fi ## -------------------- ## ## Main body of script. ## ## -------------------- ## ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu rev=1 srcroot=$srcdir if test "x${srcroot}" = "x." ; then srcroot="" else srcroot="${srcroot}/" fi abs_srcroot="`cd \"${srcdir}\"; pwd`/" objroot="" abs_objroot="`pwd`/" if test "x$prefix" = "xNONE" ; then prefix="/usr/local" fi if test "x$exec_prefix" = "xNONE" ; then exec_prefix=$prefix fi PREFIX=$prefix BINDIR=`eval echo $bindir` BINDIR=`eval echo $BINDIR` INCLUDEDIR=`eval echo $includedir` INCLUDEDIR=`eval echo $INCLUDEDIR` LIBDIR=`eval echo $libdir` LIBDIR=`eval echo $LIBDIR` DATADIR=`eval echo $datadir` DATADIR=`eval echo $DATADIR` MANDIR=`eval echo $mandir` MANDIR=`eval echo $MANDIR` # Extract the first word of "xsltproc", so it can be a program name with args. set dummy xsltproc; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_path_XSLTPROC+:} false; then : $as_echo_n "(cached) " >&6 else case $XSLTPROC in [\\/]* | ?:[\\/]*) ac_cv_path_XSLTPROC="$XSLTPROC" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_path_XSLTPROC="$as_dir/$ac_word$ac_exec_ext" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi XSLTPROC=$ac_cv_path_XSLTPROC if test -n "$XSLTPROC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XSLTPROC" >&5 $as_echo "$XSLTPROC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test -d "/usr/share/xml/docbook/stylesheet/docbook-xsl" ; then DEFAULT_XSLROOT="/usr/share/xml/docbook/stylesheet/docbook-xsl" elif test -d "/usr/share/sgml/docbook/xsl-stylesheets" ; then DEFAULT_XSLROOT="/usr/share/sgml/docbook/xsl-stylesheets" else DEFAULT_XSLROOT="" fi # Check whether --with-xslroot was given. if test "${with_xslroot+set}" = set; then : withval=$with_xslroot; if test "x$with_xslroot" = "xno" ; then XSLROOT="${DEFAULT_XSLROOT}" else XSLROOT="${with_xslroot}" fi else XSLROOT="${DEFAULT_XSLROOT}" fi CFLAGS=$CFLAGS ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. set dummy ${ac_tool_prefix}gcc; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_CC+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_prog_CC="${ac_tool_prefix}gcc" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 $as_echo "$CC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_CC"; then ac_ct_CC=$CC # Extract the first word of "gcc", so it can be a program name with args. set dummy gcc; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_CC+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_prog_ac_ct_CC="gcc" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 $as_echo "$ac_ct_CC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_CC" = x; then CC="" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac CC=$ac_ct_CC fi else CC="$ac_cv_prog_CC" fi if test -z "$CC"; then if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. set dummy ${ac_tool_prefix}cc; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_CC+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_prog_CC="${ac_tool_prefix}cc" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 $as_echo "$CC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi fi if test -z "$CC"; then # Extract the first word of "cc", so it can be a program name with args. set dummy cc; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_CC+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else ac_prog_rejected=no as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then ac_prog_rejected=yes continue fi ac_cv_prog_CC="cc" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS if test $ac_prog_rejected = yes; then # We found a bogon in the path, so make sure we never use it. set dummy $ac_cv_prog_CC shift if test $# != 0; then # We chose a different compiler from the bogus one. # However, it has the same basename, so the bogon will be chosen # first if we set CC to just the basename; use the full file name. shift ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" fi fi fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 $as_echo "$CC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$CC"; then if test -n "$ac_tool_prefix"; then for ac_prog in cl.exe do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_CC+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_prog_CC="$ac_tool_prefix$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 $as_echo "$CC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$CC" && break done fi if test -z "$CC"; then ac_ct_CC=$CC for ac_prog in cl.exe do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_CC+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_prog_ac_ct_CC="$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 $as_echo "$ac_ct_CC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$ac_ct_CC" && break done if test "x$ac_ct_CC" = x; then CC="" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac CC=$ac_ct_CC fi fi fi test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "no acceptable C compiler found in \$PATH See \`config.log' for more details" "$LINENO" 5; } # Provide some information about the compiler. $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 set X $ac_compile ac_compiler=$2 for ac_option in --version -v -V -qversion; do { { ac_try="$ac_compiler $ac_option >&5" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_compiler $ac_option >&5") 2>conftest.err ac_status=$? if test -s conftest.err; then sed '10a\ ... rest of stderr output deleted ... 10q' conftest.err >conftest.er1 cat conftest.er1 >&5 fi rm -f conftest.er1 conftest.err $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } done cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF ac_clean_files_save=$ac_clean_files ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out" # Try to create an executable without -o first, disregard a.out. # It will help us diagnose broken compilers, and finding out an intuition # of exeext. { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5 $as_echo_n "checking whether the C compiler works... " >&6; } ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` # The possible output files: ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*" ac_rmfiles= for ac_file in $ac_files do case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; * ) ac_rmfiles="$ac_rmfiles $ac_file";; esac done rm -f $ac_rmfiles if { { ac_try="$ac_link_default" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_link_default") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then : # Autoconf-2.13 could set the ac_cv_exeext variable to `no'. # So ignore a value of `no', otherwise this would lead to `EXEEXT = no' # in a Makefile. We should not override ac_cv_exeext if it was cached, # so that the user can short-circuit this test for compilers unknown to # Autoconf. for ac_file in $ac_files '' do test -f "$ac_file" || continue case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; [ab].out ) # We found the default executable, but exeext='' is most # certainly right. break;; *.* ) if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no; then :; else ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` fi # We set ac_cv_exeext here because the later test for it is not # safe: cross compilers may not add the suffix if given an `-o' # argument, so we may need to know it at that point already. # Even if this section looks crufty: it has the advantage of # actually working. break;; * ) break;; esac done test "$ac_cv_exeext" = no && ac_cv_exeext= else ac_file='' fi if test -z "$ac_file"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } $as_echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "C compiler cannot create executables See \`config.log' for more details" "$LINENO" 5; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5 $as_echo_n "checking for C compiler default output file name... " >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5 $as_echo "$ac_file" >&6; } ac_exeext=$ac_cv_exeext rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out ac_clean_files=$ac_clean_files_save { $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5 $as_echo_n "checking for suffix of executables... " >&6; } if { { ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_link") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then : # If both `conftest.exe' and `conftest' are `present' (well, observable) # catch `conftest.exe'. For instance with Cygwin, `ls conftest' will # work properly (i.e., refer to `conftest.exe'), while it won't with # `rm'. for ac_file in conftest.exe conftest conftest.*; do test -f "$ac_file" || continue case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` break;; * ) break;; esac done else { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "cannot compute suffix of executables: cannot compile and link See \`config.log' for more details" "$LINENO" 5; } fi rm -f conftest conftest$ac_cv_exeext { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5 $as_echo "$ac_cv_exeext" >&6; } rm -f conftest.$ac_ext EXEEXT=$ac_cv_exeext ac_exeext=$EXEEXT cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { FILE *f = fopen ("conftest.out", "w"); return ferror (f) || fclose (f) != 0; ; return 0; } _ACEOF ac_clean_files="$ac_clean_files conftest.out" # Check that the compiler produces executables we can run. If not, either # the compiler is broken, or we cross compile. { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5 $as_echo_n "checking whether we are cross compiling... " >&6; } if test "$cross_compiling" != yes; then { { ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_link") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if { ac_try='./conftest$ac_cv_exeext' { { case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_try") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; }; then cross_compiling=no else if test "$cross_compiling" = maybe; then cross_compiling=yes else { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "cannot run C compiled programs. If you meant to cross compile, use \`--host'. See \`config.log' for more details" "$LINENO" 5; } fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5 $as_echo "$cross_compiling" >&6; } rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out ac_clean_files=$ac_clean_files_save { $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5 $as_echo_n "checking for suffix of object files... " >&6; } if ${ac_cv_objext+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF rm -f conftest.o conftest.obj if { { ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" $as_echo "$ac_try_echo"; } >&5 (eval "$ac_compile") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then : for ac_file in conftest.o conftest.obj conftest.*; do test -f "$ac_file" || continue; case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;; *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` break;; esac done else $as_echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "cannot compute suffix of object files: cannot compile See \`config.log' for more details" "$LINENO" 5; } fi rm -f conftest.$ac_cv_objext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5 $as_echo "$ac_cv_objext" >&6; } OBJEXT=$ac_cv_objext ac_objext=$OBJEXT { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5 $as_echo_n "checking whether we are using the GNU C compiler... " >&6; } if ${ac_cv_c_compiler_gnu+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { #ifndef __GNUC__ choke me #endif ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_compiler_gnu=yes else ac_compiler_gnu=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext ac_cv_c_compiler_gnu=$ac_compiler_gnu fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5 $as_echo "$ac_cv_c_compiler_gnu" >&6; } if test $ac_compiler_gnu = yes; then GCC=yes else GCC= fi ac_test_CFLAGS=${CFLAGS+set} ac_save_CFLAGS=$CFLAGS { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5 $as_echo_n "checking whether $CC accepts -g... " >&6; } if ${ac_cv_prog_cc_g+:} false; then : $as_echo_n "(cached) " >&6 else ac_save_c_werror_flag=$ac_c_werror_flag ac_c_werror_flag=yes ac_cv_prog_cc_g=no CFLAGS="-g" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_cv_prog_cc_g=yes else CFLAGS="" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : else ac_c_werror_flag=$ac_save_c_werror_flag CFLAGS="-g" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_cv_prog_cc_g=yes fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext ac_c_werror_flag=$ac_save_c_werror_flag fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5 $as_echo "$ac_cv_prog_cc_g" >&6; } if test "$ac_test_CFLAGS" = set; then CFLAGS=$ac_save_CFLAGS elif test $ac_cv_prog_cc_g = yes; then if test "$GCC" = yes; then CFLAGS="-g -O2" else CFLAGS="-g" fi else if test "$GCC" = yes; then CFLAGS="-O2" else CFLAGS= fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5 $as_echo_n "checking for $CC option to accept ISO C89... " >&6; } if ${ac_cv_prog_cc_c89+:} false; then : $as_echo_n "(cached) " >&6 else ac_cv_prog_cc_c89=no ac_save_CC=$CC cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #include #include /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ struct buf { int x; }; FILE * (*rcsopen) (struct buf *, struct stat *, int); static char *e (p, i) char **p; int i; { return p[i]; } static char *f (char * (*g) (char **, int), char **p, ...) { char *s; va_list v; va_start (v,p); s = g (p, va_arg (v,int)); va_end (v); return s; } /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has function prototypes and stuff, but not '\xHH' hex character constants. These don't provoke an error unfortunately, instead are silently treated as 'x'. The following induces an error, until -std is added to get proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an array size at least. It's necessary to write '\x00'==0 to get something that's true only with -std. */ int osf4_cc_array ['\x00' == 0 ? 1 : -1]; /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters inside strings and character constants. */ #define FOO(x) 'x' int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; int test (int i, double x); struct s1 {int (*f) (int a);}; struct s2 {int (*f) (double a);}; int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); int argc; char **argv; int main () { return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; ; return 0; } _ACEOF for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" do CC="$ac_save_CC $ac_arg" if ac_fn_c_try_compile "$LINENO"; then : ac_cv_prog_cc_c89=$ac_arg fi rm -f core conftest.err conftest.$ac_objext test "x$ac_cv_prog_cc_c89" != "xno" && break done rm -f conftest.$ac_ext CC=$ac_save_CC fi # AC_CACHE_VAL case "x$ac_cv_prog_cc_c89" in x) { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 $as_echo "none needed" >&6; } ;; xno) { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 $as_echo "unsupported" >&6; } ;; *) CC="$CC $ac_cv_prog_cc_c89" { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 $as_echo "$ac_cv_prog_cc_c89" >&6; } ;; esac if test "x$ac_cv_prog_cc_c89" != xno; then : fi ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu if test "x$GCC" != "xyes" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler is MSVC" >&5 $as_echo_n "checking whether compiler is MSVC... " >&6; } if ${je_cv_msvc+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { #ifndef _MSC_VER int fail-1; #endif ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : je_cv_msvc=yes else je_cv_msvc=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_msvc" >&5 $as_echo "$je_cv_msvc" >&6; } fi if test "x$CFLAGS" = "x" ; then no_CFLAGS="yes" if test "x$GCC" = "xyes" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -std=gnu99" >&5 $as_echo_n "checking whether compiler supports -std=gnu99... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-std=gnu99" else CFLAGS="${CFLAGS} -std=gnu99" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wall" >&5 $as_echo_n "checking whether compiler supports -Wall... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-Wall" else CFLAGS="${CFLAGS} -Wall" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -pipe" >&5 $as_echo_n "checking whether compiler supports -pipe... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-pipe" else CFLAGS="${CFLAGS} -pipe" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -g3" >&5 $as_echo_n "checking whether compiler supports -g3... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-g3" else CFLAGS="${CFLAGS} -g3" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext elif test "x$je_cv_msvc" = "xyes" ; then CC="$CC -nologo" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Zi" >&5 $as_echo_n "checking whether compiler supports -Zi... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-Zi" else CFLAGS="${CFLAGS} -Zi" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -MT" >&5 $as_echo_n "checking whether compiler supports -MT... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-MT" else CFLAGS="${CFLAGS} -MT" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -W3" >&5 $as_echo_n "checking whether compiler supports -W3... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-W3" else CFLAGS="${CFLAGS} -W3" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext CPPFLAGS="$CPPFLAGS -I${srcroot}/include/msvc_compat" fi fi if test "x$EXTRA_CFLAGS" != "x" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports $EXTRA_CFLAGS" >&5 $as_echo_n "checking whether compiler supports $EXTRA_CFLAGS... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="$EXTRA_CFLAGS" else CFLAGS="${CFLAGS} $EXTRA_CFLAGS" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5 $as_echo_n "checking how to run the C preprocessor... " >&6; } # On Suns, sometimes $CPP names a directory. if test -n "$CPP" && test -d "$CPP"; then CPP= fi if test -z "$CPP"; then if ${ac_cv_prog_CPP+:} false; then : $as_echo_n "(cached) " >&6 else # Double quotes because CPP needs to be expanded for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" do ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # Prefer to if __STDC__ is defined, since # exists even on freestanding compilers. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef __STDC__ # include #else # include #endif Syntax error _ACEOF if ac_fn_c_try_cpp "$LINENO"; then : else # Broken: fails on valid input. continue fi rm -f conftest.err conftest.i conftest.$ac_ext # OK, works on sane cases. Now check whether nonexistent headers # can be detected and how. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if ac_fn_c_try_cpp "$LINENO"; then : # Broken: success on invalid input. continue else # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.i conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.i conftest.err conftest.$ac_ext if $ac_preproc_ok; then : break fi done ac_cv_prog_CPP=$CPP fi CPP=$ac_cv_prog_CPP else ac_cv_prog_CPP=$CPP fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 $as_echo "$CPP" >&6; } ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # Prefer to if __STDC__ is defined, since # exists even on freestanding compilers. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef __STDC__ # include #else # include #endif Syntax error _ACEOF if ac_fn_c_try_cpp "$LINENO"; then : else # Broken: fails on valid input. continue fi rm -f conftest.err conftest.i conftest.$ac_ext # OK, works on sane cases. Now check whether nonexistent headers # can be detected and how. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if ac_fn_c_try_cpp "$LINENO"; then : # Broken: success on invalid input. continue else # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.i conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.i conftest.err conftest.$ac_ext if $ac_preproc_ok; then : else { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "C preprocessor \"$CPP\" fails sanity check See \`config.log' for more details" "$LINENO" 5; } fi ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu { $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5 $as_echo_n "checking for grep that handles long lines and -e... " >&6; } if ${ac_cv_path_GREP+:} false; then : $as_echo_n "(cached) " >&6 else if test -z "$GREP"; then ac_path_GREP_found=false # Loop through the user's path and test for each of PROGNAME-LIST as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_prog in grep ggrep; do for ac_exec_ext in '' $ac_executable_extensions; do ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext" { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue # Check for GNU ac_path_GREP and select it if it is found. # Check for GNU $ac_path_GREP case `"$ac_path_GREP" --version 2>&1` in *GNU*) ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;; *) ac_count=0 $as_echo_n 0123456789 >"conftest.in" while : do cat "conftest.in" "conftest.in" >"conftest.tmp" mv "conftest.tmp" "conftest.in" cp "conftest.in" "conftest.nl" $as_echo 'GREP' >> "conftest.nl" "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break as_fn_arith $ac_count + 1 && ac_count=$as_val if test $ac_count -gt ${ac_path_GREP_max-0}; then # Best one so far, save it but keep looking for a better one ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_max=$ac_count fi # 10*(2^10) chars as input seems more than enough test $ac_count -gt 10 && break done rm -f conftest.in conftest.tmp conftest.nl conftest.out;; esac $ac_path_GREP_found && break 3 done done done IFS=$as_save_IFS if test -z "$ac_cv_path_GREP"; then as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 fi else ac_cv_path_GREP=$GREP fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5 $as_echo "$ac_cv_path_GREP" >&6; } GREP="$ac_cv_path_GREP" { $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5 $as_echo_n "checking for egrep... " >&6; } if ${ac_cv_path_EGREP+:} false; then : $as_echo_n "(cached) " >&6 else if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 then ac_cv_path_EGREP="$GREP -E" else if test -z "$EGREP"; then ac_path_EGREP_found=false # Loop through the user's path and test for each of PROGNAME-LIST as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_prog in egrep; do for ac_exec_ext in '' $ac_executable_extensions; do ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue # Check for GNU ac_path_EGREP and select it if it is found. # Check for GNU $ac_path_EGREP case `"$ac_path_EGREP" --version 2>&1` in *GNU*) ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; *) ac_count=0 $as_echo_n 0123456789 >"conftest.in" while : do cat "conftest.in" "conftest.in" >"conftest.tmp" mv "conftest.tmp" "conftest.in" cp "conftest.in" "conftest.nl" $as_echo 'EGREP' >> "conftest.nl" "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break as_fn_arith $ac_count + 1 && ac_count=$as_val if test $ac_count -gt ${ac_path_EGREP_max-0}; then # Best one so far, save it but keep looking for a better one ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_max=$ac_count fi # 10*(2^10) chars as input seems more than enough test $ac_count -gt 10 && break done rm -f conftest.in conftest.tmp conftest.nl conftest.out;; esac $ac_path_EGREP_found && break 3 done done done IFS=$as_save_IFS if test -z "$ac_cv_path_EGREP"; then as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 fi else ac_cv_path_EGREP=$EGREP fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5 $as_echo "$ac_cv_path_EGREP" >&6; } EGREP="$ac_cv_path_EGREP" { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 $as_echo_n "checking for ANSI C header files... " >&6; } if ${ac_cv_header_stdc+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #include #include int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_cv_header_stdc=yes else ac_cv_header_stdc=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test $ac_cv_header_stdc = yes; then # SunOS 4.x string.h does not declare mem*, contrary to ANSI. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "memchr" >/dev/null 2>&1; then : else ac_cv_header_stdc=no fi rm -f conftest* fi if test $ac_cv_header_stdc = yes; then # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "free" >/dev/null 2>&1; then : else ac_cv_header_stdc=no fi rm -f conftest* fi if test $ac_cv_header_stdc = yes; then # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. if test "$cross_compiling" = yes; then : : else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #if ((' ' & 0x0FF) == 0x020) # define ISLOWER(c) ('a' <= (c) && (c) <= 'z') # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) #else # define ISLOWER(c) \ (('a' <= (c) && (c) <= 'i') \ || ('j' <= (c) && (c) <= 'r') \ || ('s' <= (c) && (c) <= 'z')) # define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) #endif #define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) int main () { int i; for (i = 0; i < 256; i++) if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) return 2; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : else ac_cv_header_stdc=no fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 $as_echo "$ac_cv_header_stdc" >&6; } if test $ac_cv_header_stdc = yes; then $as_echo "#define STDC_HEADERS 1" >>confdefs.h fi # On IRIX 5.3, sys/types and inttypes.h are conflicting. for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ inttypes.h stdint.h unistd.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default " if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5 $as_echo_n "checking size of void *... " >&6; } if ${ac_cv_sizeof_void_p+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p" "$ac_includes_default"; then : else if test "$ac_cv_type_void_p" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (void *) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_void_p=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5 $as_echo "$ac_cv_sizeof_void_p" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_VOID_P $ac_cv_sizeof_void_p _ACEOF if test "x${ac_cv_sizeof_void_p}" = "x8" ; then LG_SIZEOF_PTR=3 elif test "x${ac_cv_sizeof_void_p}" = "x4" ; then LG_SIZEOF_PTR=2 else as_fn_error $? "Unsupported pointer size: ${ac_cv_sizeof_void_p}" "$LINENO" 5 fi cat >>confdefs.h <<_ACEOF #define LG_SIZEOF_PTR $LG_SIZEOF_PTR _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int" >&5 $as_echo_n "checking size of int... " >&6; } if ${ac_cv_sizeof_int+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int" "$ac_includes_default"; then : else if test "$ac_cv_type_int" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (int) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_int=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5 $as_echo "$ac_cv_sizeof_int" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_INT $ac_cv_sizeof_int _ACEOF if test "x${ac_cv_sizeof_int}" = "x8" ; then LG_SIZEOF_INT=3 elif test "x${ac_cv_sizeof_int}" = "x4" ; then LG_SIZEOF_INT=2 else as_fn_error $? "Unsupported int size: ${ac_cv_sizeof_int}" "$LINENO" 5 fi cat >>confdefs.h <<_ACEOF #define LG_SIZEOF_INT $LG_SIZEOF_INT _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long" >&5 $as_echo_n "checking size of long... " >&6; } if ${ac_cv_sizeof_long+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long" "$ac_includes_default"; then : else if test "$ac_cv_type_long" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (long) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_long=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5 $as_echo "$ac_cv_sizeof_long" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_LONG $ac_cv_sizeof_long _ACEOF if test "x${ac_cv_sizeof_long}" = "x8" ; then LG_SIZEOF_LONG=3 elif test "x${ac_cv_sizeof_long}" = "x4" ; then LG_SIZEOF_LONG=2 else as_fn_error $? "Unsupported long size: ${ac_cv_sizeof_long}" "$LINENO" 5 fi cat >>confdefs.h <<_ACEOF #define LG_SIZEOF_LONG $LG_SIZEOF_LONG _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of intmax_t" >&5 $as_echo_n "checking size of intmax_t... " >&6; } if ${ac_cv_sizeof_intmax_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (intmax_t))" "ac_cv_sizeof_intmax_t" "$ac_includes_default"; then : else if test "$ac_cv_type_intmax_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (intmax_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_intmax_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_intmax_t" >&5 $as_echo "$ac_cv_sizeof_intmax_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_INTMAX_T $ac_cv_sizeof_intmax_t _ACEOF if test "x${ac_cv_sizeof_intmax_t}" = "x16" ; then LG_SIZEOF_INTMAX_T=4 elif test "x${ac_cv_sizeof_intmax_t}" = "x8" ; then LG_SIZEOF_INTMAX_T=3 elif test "x${ac_cv_sizeof_intmax_t}" = "x4" ; then LG_SIZEOF_INTMAX_T=2 else as_fn_error $? "Unsupported intmax_t size: ${ac_cv_sizeof_intmax_t}" "$LINENO" 5 fi cat >>confdefs.h <<_ACEOF #define LG_SIZEOF_INTMAX_T $LG_SIZEOF_INTMAX_T _ACEOF ac_aux_dir= for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do if test -f "$ac_dir/install-sh"; then ac_aux_dir=$ac_dir ac_install_sh="$ac_aux_dir/install-sh -c" break elif test -f "$ac_dir/install.sh"; then ac_aux_dir=$ac_dir ac_install_sh="$ac_aux_dir/install.sh -c" break elif test -f "$ac_dir/shtool"; then ac_aux_dir=$ac_dir ac_install_sh="$ac_aux_dir/shtool install -c" break fi done if test -z "$ac_aux_dir"; then as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5 fi # These three variables are undocumented and unsupported, # and are intended to be withdrawn in a future Autoconf release. # They can cause serious problems if a builder's source tree is in a directory # whose full name contains unusual characters. ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var. ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var. ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var. # Make sure we can run config.sub. $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 || as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5 { $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5 $as_echo_n "checking build system type... " >&6; } if ${ac_cv_build+:} false; then : $as_echo_n "(cached) " >&6 else ac_build_alias=$build_alias test "x$ac_build_alias" = x && ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"` test "x$ac_build_alias" = x && as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` || as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5 fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5 $as_echo "$ac_cv_build" >&6; } case $ac_cv_build in *-*-*) ;; *) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;; esac build=$ac_cv_build ac_save_IFS=$IFS; IFS='-' set x $ac_cv_build shift build_cpu=$1 build_vendor=$2 shift; shift # Remember, the first character of IFS is used to create $*, # except with old shells: build_os=$* IFS=$ac_save_IFS case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5 $as_echo_n "checking host system type... " >&6; } if ${ac_cv_host+:} false; then : $as_echo_n "(cached) " >&6 else if test "x$host_alias" = x; then ac_cv_host=$ac_cv_build else ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` || as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5 fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5 $as_echo "$ac_cv_host" >&6; } case $ac_cv_host in *-*-*) ;; *) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;; esac host=$ac_cv_host ac_save_IFS=$IFS; IFS='-' set x $ac_cv_host shift host_cpu=$1 host_vendor=$2 shift; shift # Remember, the first character of IFS is used to create $*, # except with old shells: host_os=$* IFS=$ac_save_IFS case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac CPU_SPINWAIT="" case "${host_cpu}" in i[345]86) ;; i686) { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether __asm__ is compilable" >&5 $as_echo_n "checking whether __asm__ is compilable... " >&6; } if ${je_cv_asm+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { __asm__ volatile("pause"); return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_asm=yes else je_cv_asm=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_asm" >&5 $as_echo "$je_cv_asm" >&6; } if test "x${je_cv_asm}" = "xyes" ; then CPU_SPINWAIT='__asm__ volatile("pause")' fi ;; x86_64) { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether __asm__ syntax is compilable" >&5 $as_echo_n "checking whether __asm__ syntax is compilable... " >&6; } if ${je_cv_asm+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { __asm__ volatile("pause"); return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_asm=yes else je_cv_asm=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_asm" >&5 $as_echo "$je_cv_asm" >&6; } if test "x${je_cv_asm}" = "xyes" ; then CPU_SPINWAIT='__asm__ volatile("pause")' fi ;; *) ;; esac cat >>confdefs.h <<_ACEOF #define CPU_SPINWAIT $CPU_SPINWAIT _ACEOF LD_PRELOAD_VAR="LD_PRELOAD" so="so" importlib="${so}" o="$ac_objext" a="a" exe="$ac_exeext" libprefix="lib" DSO_LDFLAGS='-shared -Wl,-soname,$(@F)' RPATH='-Wl,-rpath,$(1)' SOREV="${so}.${rev}" PIC_CFLAGS='-fPIC -DPIC' CTARGET='-o $@' LDTARGET='-o $@' EXTRA_LDFLAGS= MKLIB='ar crus $@' CC_MM=1 default_munmap="1" JEMALLOC_USABLE_SIZE_CONST="const" case "${host}" in *-*-darwin*) CFLAGS="$CFLAGS" abi="macho" $as_echo "#define JEMALLOC_PURGE_MADVISE_FREE " >>confdefs.h RPATH="" LD_PRELOAD_VAR="DYLD_INSERT_LIBRARIES" so="dylib" importlib="${so}" force_tls="0" DSO_LDFLAGS='-shared -Wl,-dylib_install_name,$(@F)' SOREV="${rev}.${so}" ;; *-*-freebsd*) CFLAGS="$CFLAGS" abi="elf" $as_echo "#define JEMALLOC_PURGE_MADVISE_FREE " >>confdefs.h force_lazy_lock="1" ;; *-*-linux*) CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE" abi="elf" $as_echo "#define JEMALLOC_PURGE_MADVISE_DONTNEED " >>confdefs.h $as_echo "#define JEMALLOC_THREADED_INIT " >>confdefs.h JEMALLOC_USABLE_SIZE_CONST="" default_munmap="0" ;; *-*-netbsd*) { $as_echo "$as_me:${as_lineno-$LINENO}: checking ABI" >&5 $as_echo_n "checking ABI... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef __ELF__ /* ELF */ #else #error aout #endif int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : CFLAGS="$CFLAGS"; abi="elf" else abi="aout" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: result: $abi" >&5 $as_echo "$abi" >&6; } $as_echo "#define JEMALLOC_PURGE_MADVISE_FREE " >>confdefs.h ;; *-*-solaris2*) CFLAGS="$CFLAGS" abi="elf" RPATH='-Wl,-R,$(1)' CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS" LIBS="$LIBS -lposix4 -lsocket -lnsl" ;; *-ibm-aix*) if "$LG_SIZEOF_PTR" = "8"; then LD_PRELOAD_VAR="LDR_PRELOAD64" else LD_PRELOAD_VAR="LDR_PRELOAD" fi abi="xcoff" ;; *-*-mingw*) abi="pecoff" force_tls="0" RPATH="" so="dll" if test "x$je_cv_msvc" = "xyes" ; then importlib="lib" DSO_LDFLAGS="-LD" EXTRA_LDFLAGS="-link -DEBUG" CTARGET='-Fo$@' LDTARGET='-Fe$@' MKLIB='lib -nologo -out:$@' CC_MM= else importlib="${so}" DSO_LDFLAGS="-shared" fi a="lib" libprefix="" SOREV="${so}" PIC_CFLAGS="" ;; *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: Unsupported operating system: ${host}" >&5 $as_echo "Unsupported operating system: ${host}" >&6; } abi="elf" ;; esac cat >>confdefs.h <<_ACEOF #define JEMALLOC_USABLE_SIZE_CONST $JEMALLOC_USABLE_SIZE_CONST _ACEOF if test "x$abi" != "xpecoff"; then LIBS="$LIBS -lm" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether __attribute__ syntax is compilable" >&5 $as_echo_n "checking whether __attribute__ syntax is compilable... " >&6; } if ${je_cv_attribute+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ static __attribute__((unused)) void foo(void){} int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_attribute=yes else je_cv_attribute=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_attribute" >&5 $as_echo "$je_cv_attribute" >&6; } if test "x${je_cv_attribute}" = "xyes" ; then $as_echo "#define JEMALLOC_HAVE_ATTR " >>confdefs.h if test "x${GCC}" = "xyes" -a "x${abi}" = "xelf"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -fvisibility=hidden" >&5 $as_echo_n "checking whether compiler supports -fvisibility=hidden... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-fvisibility=hidden" else CFLAGS="${CFLAGS} -fvisibility=hidden" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi fi SAVED_CFLAGS="${CFLAGS}" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5 $as_echo_n "checking whether compiler supports -Werror... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-Werror" else CFLAGS="${CFLAGS} -Werror" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether tls_model attribute is compilable" >&5 $as_echo_n "checking whether tls_model attribute is compilable... " >&6; } if ${je_cv_tls_model+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { static __thread int __attribute__((tls_model("initial-exec"))) foo; foo = 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_tls_model=yes else je_cv_tls_model=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_tls_model" >&5 $as_echo "$je_cv_tls_model" >&6; } CFLAGS="${SAVED_CFLAGS}" if test "x${je_cv_tls_model}" = "xyes" ; then $as_echo "#define JEMALLOC_TLS_MODEL __attribute__((tls_model(\"initial-exec\")))" >>confdefs.h else $as_echo "#define JEMALLOC_TLS_MODEL " >>confdefs.h fi # Check whether --with-rpath was given. if test "${with_rpath+set}" = set; then : withval=$with_rpath; if test "x$with_rpath" = "xno" ; then RPATH_EXTRA= else RPATH_EXTRA="`echo $with_rpath | tr \":\" \" \"`" fi else RPATH_EXTRA= fi # Check whether --enable-autogen was given. if test "${enable_autogen+set}" = set; then : enableval=$enable_autogen; if test "x$enable_autogen" = "xno" ; then enable_autogen="0" else enable_autogen="1" fi else enable_autogen="0" fi # Find a good install program. We prefer a C program (faster), # so one script is as good as another. But avoid the broken or # incompatible versions: # SysV /etc/install, /usr/sbin/install # SunOS /usr/etc/install # IRIX /sbin/install # AIX /bin/install # AmigaOS /C/install, which installs bootblocks on floppy discs # AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag # AFS /usr/afsws/bin/install, which mishandles nonexistent args # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" # OS/2's system install, which has a completely different semantic # ./install, which can be erroneously created by make from ./install.sh. # Reject install programs that cannot install multiple files. { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5 $as_echo_n "checking for a BSD-compatible install... " >&6; } if test -z "$INSTALL"; then if ${ac_cv_path_install+:} false; then : $as_echo_n "(cached) " >&6 else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. # Account for people who put trailing slashes in PATH elements. case $as_dir/ in #(( ./ | .// | /[cC]/* | \ /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \ ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \ /usr/ucb/* ) ;; *) # OSF1 and SCO ODT 3.0 have their own names for install. # Don't use installbsd from OSF since it installs stuff as root # by default. for ac_prog in ginstall scoinst install; do for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then if test $ac_prog = install && grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then # AIX install. It has an incompatible calling convention. : elif test $ac_prog = install && grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then # program-specific install script used by HP pwplus--don't use. : else rm -rf conftest.one conftest.two conftest.dir echo one > conftest.one echo two > conftest.two mkdir conftest.dir if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" && test -s conftest.one && test -s conftest.two && test -s conftest.dir/conftest.one && test -s conftest.dir/conftest.two then ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" break 3 fi fi fi done done ;; esac done IFS=$as_save_IFS rm -rf conftest.one conftest.two conftest.dir fi if test "${ac_cv_path_install+set}" = set; then INSTALL=$ac_cv_path_install else # As a last resort, use the slow shell script. Don't cache a # value for INSTALL within a source directory, because that will # break other packages using the cache if that directory is # removed, or if the value is a relative name. INSTALL=$ac_install_sh fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5 $as_echo "$INSTALL" >&6; } # Use test -z because SunOS4 sh mishandles braces in ${var-val}. # It thinks the first close brace ends the variable substitution. test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. set dummy ${ac_tool_prefix}ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$RANLIB"; then ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi RANLIB=$ac_cv_prog_RANLIB if test -n "$RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 $as_echo "$RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_RANLIB"; then ac_ct_RANLIB=$RANLIB # Extract the first word of "ranlib", so it can be a program name with args. set dummy ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_RANLIB"; then ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_prog_ac_ct_RANLIB="ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB if test -n "$ac_ct_RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 $as_echo "$ac_ct_RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_RANLIB" = x; then RANLIB=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac RANLIB=$ac_ct_RANLIB fi else RANLIB="$ac_cv_prog_RANLIB" fi # Extract the first word of "ar", so it can be a program name with args. set dummy ar; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_path_AR+:} false; then : $as_echo_n "(cached) " >&6 else case $AR in [\\/]* | ?:[\\/]*) ac_cv_path_AR="$AR" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_path_AR="$as_dir/$ac_word$ac_exec_ext" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi AR=$ac_cv_path_AR if test -n "$AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 $as_echo "$AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi # Extract the first word of "ld", so it can be a program name with args. set dummy ld; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_path_LD+:} false; then : $as_echo_n "(cached) " >&6 else case $LD in [\\/]* | ?:[\\/]*) ac_cv_path_LD="$LD" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_path_LD="$as_dir/$ac_word$ac_exec_ext" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi LD=$ac_cv_path_LD if test -n "$LD"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5 $as_echo "$LD" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi # Extract the first word of "autoconf", so it can be a program name with args. set dummy autoconf; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_path_AUTOCONF+:} false; then : $as_echo_n "(cached) " >&6 else case $AUTOCONF in [\\/]* | ?:[\\/]*) ac_cv_path_AUTOCONF="$AUTOCONF" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_path_AUTOCONF="$as_dir/$ac_word$ac_exec_ext" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi AUTOCONF=$ac_cv_path_AUTOCONF if test -n "$AUTOCONF"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AUTOCONF" >&5 $as_echo "$AUTOCONF" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi public_syms="malloc_conf malloc_message malloc calloc posix_memalign aligned_alloc realloc free malloc_usable_size malloc_stats_print mallctl mallctlnametomib mallctlbymib" ac_fn_c_check_func "$LINENO" "memalign" "ac_cv_func_memalign" if test "x$ac_cv_func_memalign" = xyes; then : $as_echo "#define JEMALLOC_OVERRIDE_MEMALIGN " >>confdefs.h public_syms="${public_syms} memalign" fi ac_fn_c_check_func "$LINENO" "valloc" "ac_cv_func_valloc" if test "x$ac_cv_func_valloc" = xyes; then : $as_echo "#define JEMALLOC_OVERRIDE_VALLOC " >>confdefs.h public_syms="${public_syms} valloc" fi # Check whether --enable-experimental was given. if test "${enable_experimental+set}" = set; then : enableval=$enable_experimental; if test "x$enable_experimental" = "xno" ; then enable_experimental="0" else enable_experimental="1" fi else enable_experimental="1" fi if test "x$enable_experimental" = "x1" ; then $as_echo "#define JEMALLOC_EXPERIMENTAL " >>confdefs.h public_syms="${public_syms} allocm dallocm nallocm rallocm sallocm" fi # Check whether --with-mangling was given. if test "${with_mangling+set}" = set; then : withval=$with_mangling; mangling_map="$with_mangling" else mangling_map="" fi for nm in `echo ${mangling_map} |tr ',' ' '` ; do k="`echo ${nm} |tr ':' ' ' |awk '{print $1}'`" n="je_${k}" m=`echo ${nm} |tr ':' ' ' |awk '{print $2}'` cat >>confdefs.h <<_ACEOF #define ${n} ${m} _ACEOF public_syms=`for sym in ${public_syms}; do echo "${sym}"; done |grep -v "^${k}\$" |tr '\n' ' '` done # Check whether --with-jemalloc_prefix was given. if test "${with_jemalloc_prefix+set}" = set; then : withval=$with_jemalloc_prefix; JEMALLOC_PREFIX="$with_jemalloc_prefix" else if test "x$abi" != "xmacho" -a "x$abi" != "xpecoff"; then JEMALLOC_PREFIX="" else JEMALLOC_PREFIX="je_" fi fi if test "x$JEMALLOC_PREFIX" != "x" ; then JEMALLOC_CPREFIX=`echo ${JEMALLOC_PREFIX} | tr "a-z" "A-Z"` cat >>confdefs.h <<_ACEOF #define JEMALLOC_PREFIX "$JEMALLOC_PREFIX" _ACEOF cat >>confdefs.h <<_ACEOF #define JEMALLOC_CPREFIX "$JEMALLOC_CPREFIX" _ACEOF fi for stem in ${public_syms}; do n="je_${stem}" m="${JEMALLOC_PREFIX}${stem}" cat >>confdefs.h <<_ACEOF #define ${n} ${m} _ACEOF done # Check whether --with-private_namespace was given. if test "${with_private_namespace+set}" = set; then : withval=$with_private_namespace; JEMALLOC_PRIVATE_NAMESPACE="$with_private_namespace" else JEMALLOC_PRIVATE_NAMESPACE="" fi cat >>confdefs.h <<_ACEOF #define JEMALLOC_PRIVATE_NAMESPACE "$JEMALLOC_PRIVATE_NAMESPACE" _ACEOF if test "x$JEMALLOC_PRIVATE_NAMESPACE" != "x" ; then cat >>confdefs.h <<_ACEOF #define JEMALLOC_N(string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix) ${JEMALLOC_PRIVATE_NAMESPACE}##string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix _ACEOF else cat >>confdefs.h <<_ACEOF #define JEMALLOC_N(string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix) string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix _ACEOF fi # Check whether --with-install_suffix was given. if test "${with_install_suffix+set}" = set; then : withval=$with_install_suffix; INSTALL_SUFFIX="$with_install_suffix" else INSTALL_SUFFIX= fi install_suffix="$INSTALL_SUFFIX" cfgoutputs_in="${srcroot}Makefile.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}doc/html.xsl.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}doc/manpages.xsl.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}doc/jemalloc.xml.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}include/jemalloc/jemalloc.h.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}include/jemalloc/internal/jemalloc_internal.h.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}test/jemalloc_test.h.in" cfgoutputs_out="Makefile" cfgoutputs_out="${cfgoutputs_out} doc/html.xsl" cfgoutputs_out="${cfgoutputs_out} doc/manpages.xsl" cfgoutputs_out="${cfgoutputs_out} doc/jemalloc${install_suffix}.xml" cfgoutputs_out="${cfgoutputs_out} include/jemalloc/jemalloc${install_suffix}.h" cfgoutputs_out="${cfgoutputs_out} include/jemalloc/internal/jemalloc_internal.h" cfgoutputs_out="${cfgoutputs_out} test/jemalloc_test.h" cfgoutputs_tup="Makefile" cfgoutputs_tup="${cfgoutputs_tup} doc/html.xsl:doc/html.xsl.in" cfgoutputs_tup="${cfgoutputs_tup} doc/manpages.xsl:doc/manpages.xsl.in" cfgoutputs_tup="${cfgoutputs_tup} doc/jemalloc${install_suffix}.xml:doc/jemalloc.xml.in" cfgoutputs_tup="${cfgoutputs_tup} include/jemalloc/jemalloc${install_suffix}.h:include/jemalloc/jemalloc.h.in" cfgoutputs_tup="${cfgoutputs_tup} include/jemalloc/internal/jemalloc_internal.h" cfgoutputs_tup="${cfgoutputs_tup} test/jemalloc_test.h:test/jemalloc_test.h.in" cfghdrs_in="${srcroot}include/jemalloc/jemalloc_defs.h.in" cfghdrs_in="${cfghdrs_in} ${srcroot}include/jemalloc/internal/size_classes.sh" cfghdrs_out="include/jemalloc/jemalloc_defs${install_suffix}.h" cfghdrs_out="${cfghdrs_out} include/jemalloc/internal/size_classes.h" cfghdrs_tup="include/jemalloc/jemalloc_defs${install_suffix}.h:include/jemalloc/jemalloc_defs.h.in" # Check whether --enable-cc-silence was given. if test "${enable_cc_silence+set}" = set; then : enableval=$enable_cc_silence; if test "x$enable_cc_silence" = "xno" ; then enable_cc_silence="0" else enable_cc_silence="1" fi else enable_cc_silence="0" fi if test "x$enable_cc_silence" = "x1" ; then $as_echo "#define JEMALLOC_CC_SILENCE " >>confdefs.h fi # Check whether --enable-debug was given. if test "${enable_debug+set}" = set; then : enableval=$enable_debug; if test "x$enable_debug" = "xno" ; then enable_debug="0" else enable_debug="1" fi else enable_debug="0" fi if test "x$enable_debug" = "x1" ; then $as_echo "#define JEMALLOC_DEBUG " >>confdefs.h $as_echo "#define JEMALLOC_IVSALLOC " >>confdefs.h fi if test "x$enable_debug" = "x0" -a "x$no_CFLAGS" = "xyes" ; then optimize="no" echo "$EXTRA_CFLAGS" | grep "\-O" >/dev/null || optimize="yes" if test "x${optimize}" = "xyes" ; then if test "x$GCC" = "xyes" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O3" >&5 $as_echo_n "checking whether compiler supports -O3... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-O3" else CFLAGS="${CFLAGS} -O3" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -funroll-loops" >&5 $as_echo_n "checking whether compiler supports -funroll-loops... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-funroll-loops" else CFLAGS="${CFLAGS} -funroll-loops" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext elif test "x$je_cv_msvc" = "xyes" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O2" >&5 $as_echo_n "checking whether compiler supports -O2... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-O2" else CFLAGS="${CFLAGS} -O2" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext else { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O" >&5 $as_echo_n "checking whether compiler supports -O... " >&6; } TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="-O" else CFLAGS="${CFLAGS} -O" fi cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } CFLAGS="${TCFLAGS}" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi fi fi # Check whether --enable-stats was given. if test "${enable_stats+set}" = set; then : enableval=$enable_stats; if test "x$enable_stats" = "xno" ; then enable_stats="0" else enable_stats="1" fi else enable_stats="1" fi if test "x$enable_stats" = "x1" ; then $as_echo "#define JEMALLOC_STATS " >>confdefs.h fi # Check whether --enable-prof was given. if test "${enable_prof+set}" = set; then : enableval=$enable_prof; if test "x$enable_prof" = "xno" ; then enable_prof="0" else enable_prof="1" fi else enable_prof="0" fi if test "x$enable_prof" = "x1" ; then backtrace_method="" else backtrace_method="N/A" fi # Check whether --enable-prof-libunwind was given. if test "${enable_prof_libunwind+set}" = set; then : enableval=$enable_prof_libunwind; if test "x$enable_prof_libunwind" = "xno" ; then enable_prof_libunwind="0" else enable_prof_libunwind="1" fi else enable_prof_libunwind="0" fi # Check whether --with-static_libunwind was given. if test "${with_static_libunwind+set}" = set; then : withval=$with_static_libunwind; if test "x$with_static_libunwind" = "xno" ; then LUNWIND="-lunwind" else if test ! -f "$with_static_libunwind" ; then as_fn_error $? "Static libunwind not found: $with_static_libunwind" "$LINENO" 5 fi LUNWIND="$with_static_libunwind" fi else LUNWIND="-lunwind" fi if test "x$backtrace_method" = "x" -a "x$enable_prof_libunwind" = "x1" ; then for ac_header in libunwind.h do : ac_fn_c_check_header_mongrel "$LINENO" "libunwind.h" "ac_cv_header_libunwind_h" "$ac_includes_default" if test "x$ac_cv_header_libunwind_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_LIBUNWIND_H 1 _ACEOF else enable_prof_libunwind="0" fi done if test "x$LUNWIND" = "x-lunwind" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for backtrace in -lunwind" >&5 $as_echo_n "checking for backtrace in -lunwind... " >&6; } if ${ac_cv_lib_unwind_backtrace+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lunwind $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char backtrace (); int main () { return backtrace (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_unwind_backtrace=yes else ac_cv_lib_unwind_backtrace=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_unwind_backtrace" >&5 $as_echo "$ac_cv_lib_unwind_backtrace" >&6; } if test "x$ac_cv_lib_unwind_backtrace" = xyes; then : LIBS="$LIBS $LUNWIND" else enable_prof_libunwind="0" fi else LIBS="$LIBS $LUNWIND" fi if test "x${enable_prof_libunwind}" = "x1" ; then backtrace_method="libunwind" $as_echo "#define JEMALLOC_PROF_LIBUNWIND " >>confdefs.h fi fi # Check whether --enable-prof-libgcc was given. if test "${enable_prof_libgcc+set}" = set; then : enableval=$enable_prof_libgcc; if test "x$enable_prof_libgcc" = "xno" ; then enable_prof_libgcc="0" else enable_prof_libgcc="1" fi else enable_prof_libgcc="1" fi if test "x$backtrace_method" = "x" -a "x$enable_prof_libgcc" = "x1" \ -a "x$GCC" = "xyes" ; then for ac_header in unwind.h do : ac_fn_c_check_header_mongrel "$LINENO" "unwind.h" "ac_cv_header_unwind_h" "$ac_includes_default" if test "x$ac_cv_header_unwind_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_UNWIND_H 1 _ACEOF else enable_prof_libgcc="0" fi done { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _Unwind_Backtrace in -lgcc" >&5 $as_echo_n "checking for _Unwind_Backtrace in -lgcc... " >&6; } if ${ac_cv_lib_gcc__Unwind_Backtrace+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lgcc $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char _Unwind_Backtrace (); int main () { return _Unwind_Backtrace (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_gcc__Unwind_Backtrace=yes else ac_cv_lib_gcc__Unwind_Backtrace=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gcc__Unwind_Backtrace" >&5 $as_echo "$ac_cv_lib_gcc__Unwind_Backtrace" >&6; } if test "x$ac_cv_lib_gcc__Unwind_Backtrace" = xyes; then : LIBS="$LIBS -lgcc" else enable_prof_libgcc="0" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking libgcc-based backtracing reliability on ${host_cpu}" >&5 $as_echo_n "checking libgcc-based backtracing reliability on ${host_cpu}... " >&6; } case "${host_cpu}" in i[3456]86) { $as_echo "$as_me:${as_lineno-$LINENO}: result: unreliable" >&5 $as_echo "unreliable" >&6; } enable_prof_libgcc="0"; ;; x86_64) { $as_echo "$as_me:${as_lineno-$LINENO}: result: reliable" >&5 $as_echo "reliable" >&6; } ;; *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: unreliable" >&5 $as_echo "unreliable" >&6; } enable_prof_libgcc="0"; ;; esac if test "x${enable_prof_libgcc}" = "x1" ; then backtrace_method="libgcc" $as_echo "#define JEMALLOC_PROF_LIBGCC " >>confdefs.h fi else enable_prof_libgcc="0" fi # Check whether --enable-prof-gcc was given. if test "${enable_prof_gcc+set}" = set; then : enableval=$enable_prof_gcc; if test "x$enable_prof_gcc" = "xno" ; then enable_prof_gcc="0" else enable_prof_gcc="1" fi else enable_prof_gcc="1" fi if test "x$backtrace_method" = "x" -a "x$enable_prof_gcc" = "x1" \ -a "x$GCC" = "xyes" ; then backtrace_method="gcc intrinsics" $as_echo "#define JEMALLOC_PROF_GCC " >>confdefs.h else enable_prof_gcc="0" fi if test "x$backtrace_method" = "x" ; then backtrace_method="none (disabling profiling)" enable_prof="0" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking configured backtracing method" >&5 $as_echo_n "checking configured backtracing method... " >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: $backtrace_method" >&5 $as_echo "$backtrace_method" >&6; } if test "x$enable_prof" = "x1" ; then if test "x${force_tls}" = "x0" ; then as_fn_error $? "Heap profiling requires TLS" "$LINENO" 5; fi force_tls="1" $as_echo "#define JEMALLOC_PROF " >>confdefs.h fi # Check whether --enable-tcache was given. if test "${enable_tcache+set}" = set; then : enableval=$enable_tcache; if test "x$enable_tcache" = "xno" ; then enable_tcache="0" else enable_tcache="1" fi else enable_tcache="1" fi if test "x$enable_tcache" = "x1" ; then $as_echo "#define JEMALLOC_TCACHE " >>confdefs.h fi # Check whether --enable-mremap was given. if test "${enable_mremap+set}" = set; then : enableval=$enable_mremap; if test "x$enable_mremap" = "xno" ; then enable_mremap="0" else enable_mremap="1" fi else enable_mremap="0" fi if test "x$enable_mremap" = "x1" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether mremap(...MREMAP_FIXED...) is compilable" >&5 $as_echo_n "checking whether mremap(...MREMAP_FIXED...) is compilable... " >&6; } if ${je_cv_mremap_fixed+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #define _GNU_SOURCE #include int main () { void *p = mremap((void *)0, 0, 0, MREMAP_MAYMOVE|MREMAP_FIXED, (void *)0); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_mremap_fixed=yes else je_cv_mremap_fixed=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_mremap_fixed" >&5 $as_echo "$je_cv_mremap_fixed" >&6; } if test "x${je_cv_mremap_fixed}" = "xno" ; then enable_mremap="0" fi fi if test "x$enable_mremap" = "x1" ; then $as_echo "#define JEMALLOC_MREMAP " >>confdefs.h fi # Check whether --enable-munmap was given. if test "${enable_munmap+set}" = set; then : enableval=$enable_munmap; if test "x$enable_munmap" = "xno" ; then enable_munmap="0" else enable_munmap="1" fi else enable_munmap="${default_munmap}" fi if test "x$enable_munmap" = "x1" ; then $as_echo "#define JEMALLOC_MUNMAP " >>confdefs.h fi # Check whether --enable-dss was given. if test "${enable_dss+set}" = set; then : enableval=$enable_dss; if test "x$enable_dss" = "xno" ; then enable_dss="0" else enable_dss="1" fi else enable_dss="0" fi ac_fn_c_check_func "$LINENO" "sbrk" "ac_cv_func_sbrk" if test "x$ac_cv_func_sbrk" = xyes; then : have_sbrk="1" else have_sbrk="0" fi if test "x$have_sbrk" = "x1" ; then $as_echo "#define JEMALLOC_HAVE_SBRK " >>confdefs.h else enable_dss="0" fi if test "x$enable_dss" = "x1" ; then $as_echo "#define JEMALLOC_DSS " >>confdefs.h fi # Check whether --enable-fill was given. if test "${enable_fill+set}" = set; then : enableval=$enable_fill; if test "x$enable_fill" = "xno" ; then enable_fill="0" else enable_fill="1" fi else enable_fill="1" fi if test "x$enable_fill" = "x1" ; then $as_echo "#define JEMALLOC_FILL " >>confdefs.h fi # Check whether --enable-utrace was given. if test "${enable_utrace+set}" = set; then : enableval=$enable_utrace; if test "x$enable_utrace" = "xno" ; then enable_utrace="0" else enable_utrace="1" fi else enable_utrace="0" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether utrace(2) is compilable" >&5 $as_echo_n "checking whether utrace(2) is compilable... " >&6; } if ${je_cv_utrace+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #include #include #include int main () { utrace((void *)0, 0); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_utrace=yes else je_cv_utrace=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_utrace" >&5 $as_echo "$je_cv_utrace" >&6; } if test "x${je_cv_utrace}" = "xno" ; then enable_utrace="0" fi if test "x$enable_utrace" = "x1" ; then $as_echo "#define JEMALLOC_UTRACE " >>confdefs.h fi # Check whether --enable-valgrind was given. if test "${enable_valgrind+set}" = set; then : enableval=$enable_valgrind; if test "x$enable_valgrind" = "xno" ; then enable_valgrind="0" else enable_valgrind="1" fi else enable_valgrind="1" fi if test "x$enable_valgrind" = "x1" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether valgrind is compilable" >&5 $as_echo_n "checking whether valgrind is compilable... " >&6; } if ${je_cv_valgrind+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #if !defined(VALGRIND_RESIZEINPLACE_BLOCK) # error "Incompatible Valgrind version" #endif int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_valgrind=yes else je_cv_valgrind=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_valgrind" >&5 $as_echo "$je_cv_valgrind" >&6; } if test "x${je_cv_valgrind}" = "xno" ; then enable_valgrind="0" fi if test "x$enable_valgrind" = "x1" ; then $as_echo "#define JEMALLOC_VALGRIND " >>confdefs.h fi fi # Check whether --enable-xmalloc was given. if test "${enable_xmalloc+set}" = set; then : enableval=$enable_xmalloc; if test "x$enable_xmalloc" = "xno" ; then enable_xmalloc="0" else enable_xmalloc="1" fi else enable_xmalloc="0" fi if test "x$enable_xmalloc" = "x1" ; then $as_echo "#define JEMALLOC_XMALLOC " >>confdefs.h fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking STATIC_PAGE_SHIFT" >&5 $as_echo_n "checking STATIC_PAGE_SHIFT... " >&6; } if ${je_cv_static_page_shift+:} false; then : $as_echo_n "(cached) " >&6 else if test "$cross_compiling" = yes; then : { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "cannot run test program while cross compiling See \`config.log' for more details" "$LINENO" 5; } else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #ifdef _WIN32 #include #else #include #endif #include int main () { long result; FILE *f; #ifdef _WIN32 SYSTEM_INFO si; GetSystemInfo(&si); result = si.dwPageSize; #else result = sysconf(_SC_PAGESIZE); #endif if (result == -1) { return 1; } result = ffsl(result) - 1; f = fopen("conftest.out", "w"); if (f == NULL) { return 1; } fprintf(f, "%u\n", result); fclose(f); return 0; ; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : je_cv_static_page_shift=`cat conftest.out` else je_cv_static_page_shift=undefined fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_static_page_shift" >&5 $as_echo "$je_cv_static_page_shift" >&6; } if test "x$je_cv_static_page_shift" != "xundefined"; then cat >>confdefs.h <<_ACEOF #define STATIC_PAGE_SHIFT $je_cv_static_page_shift _ACEOF else as_fn_error $? "cannot determine value for STATIC_PAGE_SHIFT" "$LINENO" 5 fi if test -d "${srcroot}.git" ; then git describe --long --abbrev=40 > ${srcroot}VERSION fi jemalloc_version=`cat ${srcroot}VERSION` jemalloc_version_major=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print $1}'` jemalloc_version_minor=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print $2}'` jemalloc_version_bugfix=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print $3}'` jemalloc_version_nrev=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print $4}'` jemalloc_version_gid=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print $5}'` if test "x$abi" != "xpecoff" ; then for ac_header in pthread.h do : ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default" if test "x$ac_cv_header_pthread_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_PTHREAD_H 1 _ACEOF else as_fn_error $? "pthread.h is missing" "$LINENO" 5 fi done { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5 $as_echo_n "checking for pthread_create in -lpthread... " >&6; } if ${ac_cv_lib_pthread_pthread_create+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lpthread $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char pthread_create (); int main () { return pthread_create (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_pthread_pthread_create=yes else ac_cv_lib_pthread_pthread_create=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_create" >&5 $as_echo "$ac_cv_lib_pthread_pthread_create" >&6; } if test "x$ac_cv_lib_pthread_pthread_create" = xyes; then : LIBS="$LIBS -lpthread" else { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pthread_create" >&5 $as_echo_n "checking for library containing pthread_create... " >&6; } if ${ac_cv_search_pthread_create+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char pthread_create (); int main () { return pthread_create (); ; return 0; } _ACEOF for ac_lib in '' ; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_pthread_create=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_pthread_create+:} false; then : break fi done if ${ac_cv_search_pthread_create+:} false; then : else ac_cv_search_pthread_create=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pthread_create" >&5 $as_echo "$ac_cv_search_pthread_create" >&6; } ac_res=$ac_cv_search_pthread_create if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" else as_fn_error $? "libpthread is missing" "$LINENO" 5 fi fi fi CPPFLAGS="$CPPFLAGS -D_REENTRANT" ac_fn_c_check_func "$LINENO" "_malloc_thread_cleanup" "ac_cv_func__malloc_thread_cleanup" if test "x$ac_cv_func__malloc_thread_cleanup" = xyes; then : have__malloc_thread_cleanup="1" else have__malloc_thread_cleanup="0" fi if test "x$have__malloc_thread_cleanup" = "x1" ; then $as_echo "#define JEMALLOC_MALLOC_THREAD_CLEANUP " >>confdefs.h force_tls="1" fi ac_fn_c_check_func "$LINENO" "_pthread_mutex_init_calloc_cb" "ac_cv_func__pthread_mutex_init_calloc_cb" if test "x$ac_cv_func__pthread_mutex_init_calloc_cb" = xyes; then : have__pthread_mutex_init_calloc_cb="1" else have__pthread_mutex_init_calloc_cb="0" fi if test "x$have__pthread_mutex_init_calloc_cb" = "x1" ; then $as_echo "#define JEMALLOC_MUTEX_INIT_CB 1" >>confdefs.h fi # Check whether --enable-lazy_lock was given. if test "${enable_lazy_lock+set}" = set; then : enableval=$enable_lazy_lock; if test "x$enable_lazy_lock" = "xno" ; then enable_lazy_lock="0" else enable_lazy_lock="1" fi else enable_lazy_lock="0" fi if test "x$enable_lazy_lock" = "x0" -a "x${force_lazy_lock}" = "x1" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: Forcing lazy-lock to avoid allocator/threading bootstrap issues" >&5 $as_echo "Forcing lazy-lock to avoid allocator/threading bootstrap issues" >&6; } enable_lazy_lock="1" fi if test "x$enable_lazy_lock" = "x1" ; then if test "x$abi" != "xpecoff" ; then for ac_header in dlfcn.h do : ac_fn_c_check_header_mongrel "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default" if test "x$ac_cv_header_dlfcn_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_DLFCN_H 1 _ACEOF else as_fn_error $? "dlfcn.h is missing" "$LINENO" 5 fi done ac_fn_c_check_func "$LINENO" "dlsym" "ac_cv_func_dlsym" if test "x$ac_cv_func_dlsym" = xyes; then : else { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlsym in -ldl" >&5 $as_echo_n "checking for dlsym in -ldl... " >&6; } if ${ac_cv_lib_dl_dlsym+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-ldl $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char dlsym (); int main () { return dlsym (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_dl_dlsym=yes else ac_cv_lib_dl_dlsym=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlsym" >&5 $as_echo "$ac_cv_lib_dl_dlsym" >&6; } if test "x$ac_cv_lib_dl_dlsym" = xyes; then : LIBS="$LIBS -ldl" else as_fn_error $? "libdl is missing" "$LINENO" 5 fi fi fi $as_echo "#define JEMALLOC_LAZY_LOCK " >>confdefs.h fi # Check whether --enable-tls was given. if test "${enable_tls+set}" = set; then : enableval=$enable_tls; if test "x$enable_tls" = "xno" ; then enable_tls="0" else enable_tls="1" fi else enable_tls="1" fi if test "x${enable_tls}" = "x0" -a "x${force_tls}" = "x1" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: Forcing TLS to avoid allocator/threading bootstrap issues" >&5 $as_echo "Forcing TLS to avoid allocator/threading bootstrap issues" >&6; } enable_tls="1" fi if test "x${enable_tls}" = "x1" -a "x${force_tls}" = "x0" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: Forcing no TLS to avoid allocator/threading bootstrap issues" >&5 $as_echo "Forcing no TLS to avoid allocator/threading bootstrap issues" >&6; } enable_tls="0" fi if test "x${enable_tls}" = "x1" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for TLS" >&5 $as_echo_n "checking for TLS... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ __thread int x; int main () { x = 42; return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } enable_tls="0" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi if test "x${enable_tls}" = "x1" ; then cat >>confdefs.h <<_ACEOF #define JEMALLOC_TLS _ACEOF elif test "x${force_tls}" = "x1" ; then as_fn_error $? "Failed to configure TLS, which is mandatory for correct function" "$LINENO" 5 fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program using ffsl is compilable" >&5 $as_echo_n "checking whether a program using ffsl is compilable... " >&6; } if ${je_cv_function_ffsl+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include int main () { { int rv = ffsl(0x08); } ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_function_ffsl=yes else je_cv_function_ffsl=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_function_ffsl" >&5 $as_echo "$je_cv_function_ffsl" >&6; } if test "x${je_cv_function_ffsl}" != "xyes" ; then as_fn_error $? "Cannot build without ffsl(3)" "$LINENO" 5 fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether atomic(9) is compilable" >&5 $as_echo_n "checking whether atomic(9) is compilable... " >&6; } if ${je_cv_atomic9+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #include int main () { { uint32_t x32 = 0; volatile uint32_t *x32p = &x32; atomic_fetchadd_32(x32p, 1); } { unsigned long xlong = 0; volatile unsigned long *xlongp = &xlong; atomic_fetchadd_long(xlongp, 1); } ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_atomic9=yes else je_cv_atomic9=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_atomic9" >&5 $as_echo "$je_cv_atomic9" >&6; } if test "x${je_cv_atomic9}" = "xyes" ; then $as_echo "#define JEMALLOC_ATOMIC9 1" >>confdefs.h fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Darwin OSAtomic*() is compilable" >&5 $as_echo_n "checking whether Darwin OSAtomic*() is compilable... " >&6; } if ${je_cv_osatomic+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include int main () { { int32_t x32 = 0; volatile int32_t *x32p = &x32; OSAtomicAdd32(1, x32p); } { int64_t x64 = 0; volatile int64_t *x64p = &x64; OSAtomicAdd64(1, x64p); } ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_osatomic=yes else je_cv_osatomic=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_osatomic" >&5 $as_echo "$je_cv_osatomic" >&6; } if test "x${je_cv_osatomic}" = "xyes" ; then $as_echo "#define JEMALLOC_OSATOMIC " >>confdefs.h fi if test "x${je_cv_atomic9}" != "xyes" -a "x${je_cv_osatomic}" != "xyes" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to force 32-bit __sync_{add,sub}_and_fetch()" >&5 $as_echo_n "checking whether to force 32-bit __sync_{add,sub}_and_fetch()... " >&6; } if ${je_cv_sync_compare_and_swap_4+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 { uint32_t x32 = 0; __sync_add_and_fetch(&x32, 42); __sync_sub_and_fetch(&x32, 1); } #else #error __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 is defined, no need to force #endif ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_sync_compare_and_swap_4=yes else je_cv_sync_compare_and_swap_4=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_sync_compare_and_swap_4" >&5 $as_echo "$je_cv_sync_compare_and_swap_4" >&6; } if test "x${je_cv_sync_compare_and_swap_4}" = "xyes" ; then $as_echo "#define JE_FORCE_SYNC_COMPARE_AND_SWAP_4 " >>confdefs.h fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to force 64-bit __sync_{add,sub}_and_fetch()" >&5 $as_echo_n "checking whether to force 64-bit __sync_{add,sub}_and_fetch()... " >&6; } if ${je_cv_sync_compare_and_swap_8+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 { uint64_t x64 = 0; __sync_add_and_fetch(&x64, 42); __sync_sub_and_fetch(&x64, 1); } #else #error __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 is defined, no need to force #endif ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_sync_compare_and_swap_8=yes else je_cv_sync_compare_and_swap_8=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_sync_compare_and_swap_8" >&5 $as_echo "$je_cv_sync_compare_and_swap_8" >&6; } if test "x${je_cv_sync_compare_and_swap_8}" = "xyes" ; then $as_echo "#define JE_FORCE_SYNC_COMPARE_AND_SWAP_8 " >>confdefs.h fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Darwin OSSpin*() is compilable" >&5 $as_echo_n "checking whether Darwin OSSpin*() is compilable... " >&6; } if ${je_cv_osspin+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include int main () { OSSpinLock lock = 0; OSSpinLockLock(&lock); OSSpinLockUnlock(&lock); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : je_cv_osspin=yes else je_cv_osspin=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_osspin" >&5 $as_echo "$je_cv_osspin" >&6; } if test "x${je_cv_osspin}" = "xyes" ; then $as_echo "#define JEMALLOC_OSSPIN " >>confdefs.h fi if test "x${abi}" = "xmacho" ; then $as_echo "#define JEMALLOC_IVSALLOC " >>confdefs.h $as_echo "#define JEMALLOC_ZONE " >>confdefs.h { $as_echo "$as_me:${as_lineno-$LINENO}: checking malloc zone version" >&5 $as_echo_n "checking malloc zone version... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { static foo[sizeof(malloc_zone_t) == sizeof(void *) * 14 ? 1 : -1] ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : JEMALLOC_ZONE_VERSION=3 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { static foo[sizeof(malloc_zone_t) == sizeof(void *) * 15 ? 1 : -1] ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : JEMALLOC_ZONE_VERSION=5 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { static foo[sizeof(malloc_zone_t) == sizeof(void *) * 16 ? 1 : -1] ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { static foo[sizeof(malloc_introspection_t) == sizeof(void *) * 9 ? 1 : -1] ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : JEMALLOC_ZONE_VERSION=6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { static foo[sizeof(malloc_introspection_t) == sizeof(void *) * 13 ? 1 : -1] ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : JEMALLOC_ZONE_VERSION=7 else JEMALLOC_ZONE_VERSION= fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { static foo[sizeof(malloc_zone_t) == sizeof(void *) * 17 ? 1 : -1] ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : JEMALLOC_ZONE_VERSION=8 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { static foo[sizeof(malloc_zone_t) > sizeof(void *) * 17 ? 1 : -1] ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : JEMALLOC_ZONE_VERSION=9 else JEMALLOC_ZONE_VERSION= fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test "x${JEMALLOC_ZONE_VERSION}" = "x"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 $as_echo "unsupported" >&6; } as_fn_error $? "Unsupported malloc zone version" "$LINENO" 5 fi if test "${JEMALLOC_ZONE_VERSION}" = 9; then JEMALLOC_ZONE_VERSION=8 { $as_echo "$as_me:${as_lineno-$LINENO}: result: > 8" >&5 $as_echo "> 8" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: $JEMALLOC_ZONE_VERSION" >&5 $as_echo "$JEMALLOC_ZONE_VERSION" >&6; } fi cat >>confdefs.h <<_ACEOF #define JEMALLOC_ZONE_VERSION $JEMALLOC_ZONE_VERSION _ACEOF fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99" >&5 $as_echo_n "checking for stdbool.h that conforms to C99... " >&6; } if ${ac_cv_header_stdbool_h+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #ifndef bool "error: bool is not defined" #endif #ifndef false "error: false is not defined" #endif #if false "error: false is not 0" #endif #ifndef true "error: true is not defined" #endif #if true != 1 "error: true is not 1" #endif #ifndef __bool_true_false_are_defined "error: __bool_true_false_are_defined is not defined" #endif struct s { _Bool s: 1; _Bool t; } s; char a[true == 1 ? 1 : -1]; char b[false == 0 ? 1 : -1]; char c[__bool_true_false_are_defined == 1 ? 1 : -1]; char d[(bool) 0.5 == true ? 1 : -1]; /* See body of main program for 'e'. */ char f[(_Bool) 0.0 == false ? 1 : -1]; char g[true]; char h[sizeof (_Bool)]; char i[sizeof s.t]; enum { j = false, k = true, l = false * true, m = true * 256 }; /* The following fails for HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */ _Bool n[m]; char o[sizeof n == m * sizeof n[0] ? 1 : -1]; char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1]; /* Catch a bug in an HP-UX C compiler. See http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html */ _Bool q = true; _Bool *pq = &q; int main () { bool e = &s; *pq |= q; *pq |= ! q; /* Refer to every declared value, to avoid compiler optimizations. */ return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l + !m + !n + !o + !p + !q + !pq); ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_cv_header_stdbool_h=yes else ac_cv_header_stdbool_h=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdbool_h" >&5 $as_echo "$ac_cv_header_stdbool_h" >&6; } ac_fn_c_check_type "$LINENO" "_Bool" "ac_cv_type__Bool" "$ac_includes_default" if test "x$ac_cv_type__Bool" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE__BOOL 1 _ACEOF fi if test $ac_cv_header_stdbool_h = yes; then $as_echo "#define HAVE_STDBOOL_H 1" >>confdefs.h fi ac_config_commands="$ac_config_commands include/jemalloc/internal/size_classes.h" ac_config_headers="$ac_config_headers $cfghdrs_tup" ac_config_files="$ac_config_files $cfgoutputs_tup config.stamp bin/jemalloc.sh" cat >confcache <<\_ACEOF # This file is a shell script that caches the results of configure # tests run on this system so they can be shared between configure # scripts and configure runs, see configure's option --config-cache. # It is not useful on other systems. If it contains results you don't # want to keep, you may remove or edit it. # # config.status only pays attention to the cache file if you give it # the --recheck option to rerun configure. # # `ac_cv_env_foo' variables (set or unset) will be overridden when # loading this file, other *unset* `ac_cv_foo' will be assigned the # following values. _ACEOF # The following way of writing the cache mishandles newlines in values, # but we know of no workaround that is simple, portable, and efficient. # So, we kill variables containing newlines. # Ultrix sh set writes to stderr and can't be redirected directly, # and sets the high bit in the cache file unless we assign to the vars. ( for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do eval ac_val=\$$ac_var case $ac_val in #( *${as_nl}*) case $ac_var in #( *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; esac case $ac_var in #( _ | IFS | as_nl) ;; #( BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( *) { eval $ac_var=; unset $ac_var;} ;; esac ;; esac done (set) 2>&1 | case $as_nl`(ac_space=' '; set) 2>&1` in #( *${as_nl}ac_space=\ *) # `set' does not quote correctly, so add quotes: double-quote # substitution turns \\\\ into \\, and sed turns \\ into \. sed -n \ "s/'/'\\\\''/g; s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" ;; #( *) # `set' quotes correctly as required by POSIX, so do not add quotes. sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" ;; esac | sort ) | sed ' /^ac_cv_env_/b end t clear :clear s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ t end s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ :end' >>confcache if diff "$cache_file" confcache >/dev/null 2>&1; then :; else if test -w "$cache_file"; then if test "x$cache_file" != "x/dev/null"; then { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5 $as_echo "$as_me: updating cache $cache_file" >&6;} if test ! -f "$cache_file" || test -h "$cache_file"; then cat confcache >"$cache_file" else case $cache_file in #( */* | ?:*) mv -f confcache "$cache_file"$$ && mv -f "$cache_file"$$ "$cache_file" ;; #( *) mv -f confcache "$cache_file" ;; esac fi fi else { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5 $as_echo "$as_me: not updating unwritable cache $cache_file" >&6;} fi fi rm -f confcache test "x$prefix" = xNONE && prefix=$ac_default_prefix # Let make expand exec_prefix. test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' DEFS=-DHAVE_CONFIG_H ac_libobjs= ac_ltlibobjs= U= for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue # 1. Remove the extension, and $U if already installed. ac_script='s/\$U\././;s/\.o$//;s/\.obj$//' ac_i=`$as_echo "$ac_i" | sed "$ac_script"` # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR # will be set to the directory where LIBOBJS objects are built. as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext" as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo' done LIBOBJS=$ac_libobjs LTLIBOBJS=$ac_ltlibobjs : "${CONFIG_STATUS=./config.status}" ac_write_fail=0 ac_clean_files_save=$ac_clean_files ac_clean_files="$ac_clean_files $CONFIG_STATUS" { $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5 $as_echo "$as_me: creating $CONFIG_STATUS" >&6;} as_write_fail=0 cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1 #! $SHELL # Generated by $as_me. # Run this file to recreate the current configuration. # Compiler output produced by configure, useful for debugging # configure, is in config.log if it exists. debug=false ac_cs_recheck=false ac_cs_silent=false SHELL=\${CONFIG_SHELL-$SHELL} export SHELL _ASEOF cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1 ## -------------------- ## ## M4sh Initialization. ## ## -------------------- ## # Be more Bourne compatible DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. Disable this feature. alias -g '${1+"$@"}'='"$@"' setopt NO_GLOB_SUBST else case `(set -o) 2>/dev/null` in #( *posix*) : set -o posix ;; #( *) : ;; esac fi as_nl=' ' export as_nl # Printing a long string crashes Solaris 7 /usr/bin/printf. as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo # Prefer a ksh shell builtin over an external printf program on Solaris, # but without wasting forks for bash or zsh. if test -z "$BASH_VERSION$ZSH_VERSION" \ && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then as_echo='print -r --' as_echo_n='print -rn --' elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then as_echo='printf %s\n' as_echo_n='printf %s' else if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' as_echo_n='/usr/ucb/echo -n' else as_echo_body='eval expr "X$1" : "X\\(.*\\)"' as_echo_n_body='eval arg=$1; case $arg in #( *"$as_nl"*) expr "X$arg" : "X\\(.*\\)$as_nl"; arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; esac; expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" ' export as_echo_n_body as_echo_n='sh -c $as_echo_n_body as_echo' fi export as_echo_body as_echo='sh -c $as_echo_body as_echo' fi # The user is always right. if test "${PATH_SEPARATOR+set}" != set; then PATH_SEPARATOR=: (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || PATH_SEPARATOR=';' } fi # IFS # We need space, tab and new line, in precisely that order. Quoting is # there to prevent editors from complaining about space-tab. # (If _AS_PATH_WALK were called with IFS unset, it would disable word # splitting by setting IFS to empty value.) IFS=" "" $as_nl" # Find who we are. Look in the path if we contain no directory separator. as_myself= case $0 in #(( *[\\/]* ) as_myself=$0 ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break done IFS=$as_save_IFS ;; esac # We did not find ourselves, most probably we were run as `sh COMMAND' # in which case we are not to be found in the path. if test "x$as_myself" = x; then as_myself=$0 fi if test ! -f "$as_myself"; then $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 exit 1 fi # Unset variables that we do not need and which cause bugs (e.g. in # pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" # suppresses any "Segmentation fault" message there. '((' could # trigger a bug in pdksh 5.2.14. for as_var in BASH_ENV ENV MAIL MAILPATH do eval test x\${$as_var+set} = xset \ && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : done PS1='$ ' PS2='> ' PS4='+ ' # NLS nuisances. LC_ALL=C export LC_ALL LANGUAGE=C export LANGUAGE # CDPATH. (unset CDPATH) >/dev/null 2>&1 && unset CDPATH # as_fn_error STATUS ERROR [LINENO LOG_FD] # ---------------------------------------- # Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are # provided, also output the error to LOG_FD, referencing LINENO. Then exit the # script with STATUS, using 1 if that was 0. as_fn_error () { as_status=$1; test $as_status -eq 0 && as_status=1 if test "$4"; then as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 fi $as_echo "$as_me: error: $2" >&2 as_fn_exit $as_status } # as_fn_error # as_fn_set_status STATUS # ----------------------- # Set $? to STATUS, without forking. as_fn_set_status () { return $1 } # as_fn_set_status # as_fn_exit STATUS # ----------------- # Exit the shell with STATUS, even in a "trap 0" or "set -e" context. as_fn_exit () { set +e as_fn_set_status $1 exit $1 } # as_fn_exit # as_fn_unset VAR # --------------- # Portably unset VAR. as_fn_unset () { { eval $1=; unset $1;} } as_unset=as_fn_unset # as_fn_append VAR VALUE # ---------------------- # Append the text in VALUE to the end of the definition contained in VAR. Take # advantage of any shell optimizations that allow amortized linear growth over # repeated appends, instead of the typical quadratic growth present in naive # implementations. if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : eval 'as_fn_append () { eval $1+=\$2 }' else as_fn_append () { eval $1=\$$1\$2 } fi # as_fn_append # as_fn_arith ARG... # ------------------ # Perform arithmetic evaluation on the ARGs, and store the result in the # global $as_val. Take advantage of shells that can avoid forks. The arguments # must be portable across $(()) and expr. if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : eval 'as_fn_arith () { as_val=$(( $* )) }' else as_fn_arith () { as_val=`expr "$@" || test $? -eq 1` } fi # as_fn_arith if expr a : '\(a\)' >/dev/null 2>&1 && test "X`expr 00001 : '.*\(...\)'`" = X001; then as_expr=expr else as_expr=false fi if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then as_basename=basename else as_basename=false fi if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then as_dirname=dirname else as_dirname=false fi as_me=`$as_basename -- "$0" || $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ X"$0" : 'X\(//\)$' \| \ X"$0" : 'X\(/\)' \| . 2>/dev/null || $as_echo X/"$0" | sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/ q } /^X\/\(\/\/\)$/{ s//\1/ q } /^X\/\(\/\).*/{ s//\1/ q } s/.*/./; q'` # Avoid depending upon Character Ranges. as_cr_letters='abcdefghijklmnopqrstuvwxyz' as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' as_cr_Letters=$as_cr_letters$as_cr_LETTERS as_cr_digits='0123456789' as_cr_alnum=$as_cr_Letters$as_cr_digits ECHO_C= ECHO_N= ECHO_T= case `echo -n x` in #((((( -n*) case `echo 'xy\c'` in *c*) ECHO_T=' ';; # ECHO_T is single tab character. xy) ECHO_C='\c';; *) echo `echo ksh88 bug on AIX 6.1` > /dev/null ECHO_T=' ';; esac;; *) ECHO_N='-n';; esac rm -f conf$$ conf$$.exe conf$$.file if test -d conf$$.dir; then rm -f conf$$.dir/conf$$.file else rm -f conf$$.dir mkdir conf$$.dir 2>/dev/null fi if (echo >conf$$.file) 2>/dev/null; then if ln -s conf$$.file conf$$ 2>/dev/null; then as_ln_s='ln -s' # ... but there are two gotchas: # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. # In both cases, we have to default to `cp -p'. ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || as_ln_s='cp -p' elif ln conf$$.file conf$$ 2>/dev/null; then as_ln_s=ln else as_ln_s='cp -p' fi else as_ln_s='cp -p' fi rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file rmdir conf$$.dir 2>/dev/null # as_fn_mkdir_p # ------------- # Create "$as_dir" as a directory, including parents if necessary. as_fn_mkdir_p () { case $as_dir in #( -*) as_dir=./$as_dir;; esac test -d "$as_dir" || eval $as_mkdir_p || { as_dirs= while :; do case $as_dir in #( *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( *) as_qdir=$as_dir;; esac as_dirs="'$as_qdir' $as_dirs" as_dir=`$as_dirname -- "$as_dir" || $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ X"$as_dir" : 'X\(//\)[^/]' \| \ X"$as_dir" : 'X\(//\)$' \| \ X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || $as_echo X"$as_dir" | sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/ q } /^X\(\/\/\)[^/].*/{ s//\1/ q } /^X\(\/\/\)$/{ s//\1/ q } /^X\(\/\).*/{ s//\1/ q } s/.*/./; q'` test -d "$as_dir" && break done test -z "$as_dirs" || eval "mkdir $as_dirs" } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" } # as_fn_mkdir_p if mkdir -p . 2>/dev/null; then as_mkdir_p='mkdir -p "$as_dir"' else test -d ./-p && rmdir ./-p as_mkdir_p=false fi if test -x / >/dev/null 2>&1; then as_test_x='test -x' else if ls -dL / >/dev/null 2>&1; then as_ls_L_option=L else as_ls_L_option= fi as_test_x=' eval sh -c '\'' if test -d "$1"; then test -d "$1/."; else case $1 in #( -*)set "./$1";; esac; case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #(( ???[sx]*):;;*)false;;esac;fi '\'' sh ' fi as_executable_p=$as_test_x # Sed expression to map a string onto a valid CPP name. as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'" # Sed expression to map a string onto a valid variable name. as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'" exec 6>&1 ## ----------------------------------- ## ## Main body of $CONFIG_STATUS script. ## ## ----------------------------------- ## _ASEOF test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 # Save the log message, to keep $0 and so on meaningful, and to # report actual input values of CONFIG_FILES etc. instead of their # values after options handling. ac_log=" This file was extended by $as_me, which was generated by GNU Autoconf 2.68. Invocation command line was CONFIG_FILES = $CONFIG_FILES CONFIG_HEADERS = $CONFIG_HEADERS CONFIG_LINKS = $CONFIG_LINKS CONFIG_COMMANDS = $CONFIG_COMMANDS $ $0 $@ on `(hostname || uname -n) 2>/dev/null | sed 1q` " _ACEOF case $ac_config_files in *" "*) set x $ac_config_files; shift; ac_config_files=$*;; esac case $ac_config_headers in *" "*) set x $ac_config_headers; shift; ac_config_headers=$*;; esac cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 # Files that config.status was made for. config_files="$ac_config_files" config_headers="$ac_config_headers" config_commands="$ac_config_commands" _ACEOF cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 ac_cs_usage="\ \`$as_me' instantiates files and other configuration actions from templates according to the current configuration. Unless the files and actions are specified as TAGs, all are instantiated by default. Usage: $0 [OPTION]... [TAG]... -h, --help print this help, then exit -V, --version print version number and configuration settings, then exit --config print configuration, then exit -q, --quiet, --silent do not print progress messages -d, --debug don't remove temporary files --recheck update $as_me by reconfiguring in the same conditions --file=FILE[:TEMPLATE] instantiate the configuration file FILE --header=FILE[:TEMPLATE] instantiate the configuration header FILE Configuration files: $config_files Configuration headers: $config_headers Configuration commands: $config_commands Report bugs to the package provider." _ACEOF cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`" ac_cs_version="\\ config.status configured by $0, generated by GNU Autoconf 2.68, with options \\"\$ac_cs_config\\" Copyright (C) 2010 Free Software Foundation, Inc. This config.status script is free software; the Free Software Foundation gives unlimited permission to copy, distribute and modify it." ac_pwd='$ac_pwd' srcdir='$srcdir' INSTALL='$INSTALL' test -n "\$AWK" || AWK=awk _ACEOF cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 # The default lists apply if the user does not specify any file. ac_need_defaults=: while test $# != 0 do case $1 in --*=?*) ac_option=`expr "X$1" : 'X\([^=]*\)='` ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'` ac_shift=: ;; --*=) ac_option=`expr "X$1" : 'X\([^=]*\)='` ac_optarg= ac_shift=: ;; *) ac_option=$1 ac_optarg=$2 ac_shift=shift ;; esac case $ac_option in # Handling of the options. -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) ac_cs_recheck=: ;; --version | --versio | --versi | --vers | --ver | --ve | --v | -V ) $as_echo "$ac_cs_version"; exit ;; --config | --confi | --conf | --con | --co | --c ) $as_echo "$ac_cs_config"; exit ;; --debug | --debu | --deb | --de | --d | -d ) debug=: ;; --file | --fil | --fi | --f ) $ac_shift case $ac_optarg in *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; '') as_fn_error $? "missing file argument" ;; esac as_fn_append CONFIG_FILES " '$ac_optarg'" ac_need_defaults=false;; --header | --heade | --head | --hea ) $ac_shift case $ac_optarg in *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; esac as_fn_append CONFIG_HEADERS " '$ac_optarg'" ac_need_defaults=false;; --he | --h) # Conflict between --help and --header as_fn_error $? "ambiguous option: \`$1' Try \`$0 --help' for more information.";; --help | --hel | -h ) $as_echo "$ac_cs_usage"; exit ;; -q | -quiet | --quiet | --quie | --qui | --qu | --q \ | -silent | --silent | --silen | --sile | --sil | --si | --s) ac_cs_silent=: ;; # This is an error. -*) as_fn_error $? "unrecognized option: \`$1' Try \`$0 --help' for more information." ;; *) as_fn_append ac_config_targets " $1" ac_need_defaults=false ;; esac shift done ac_configure_extra_args= if $ac_cs_silent; then exec 6>/dev/null ac_configure_extra_args="$ac_configure_extra_args --silent" fi _ACEOF cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 if \$ac_cs_recheck; then set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion shift \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6 CONFIG_SHELL='$SHELL' export CONFIG_SHELL exec "\$@" fi _ACEOF cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 exec 5>>config.log { echo sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX ## Running $as_me. ## _ASBOX $as_echo "$ac_log" } >&5 _ACEOF cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 _ACEOF cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 # Handling of arguments. for ac_config_target in $ac_config_targets do case $ac_config_target in "include/jemalloc/internal/size_classes.h") CONFIG_COMMANDS="$CONFIG_COMMANDS include/jemalloc/internal/size_classes.h" ;; "$cfghdrs_tup") CONFIG_HEADERS="$CONFIG_HEADERS $cfghdrs_tup" ;; "$cfgoutputs_tup") CONFIG_FILES="$CONFIG_FILES $cfgoutputs_tup" ;; "config.stamp") CONFIG_FILES="$CONFIG_FILES config.stamp" ;; "bin/jemalloc.sh") CONFIG_FILES="$CONFIG_FILES bin/jemalloc.sh" ;; *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;; esac done # If the user did not use the arguments to specify the items to instantiate, # then the envvar interface is used. Set only those that are not. # We use the long form for the default assignment because of an extremely # bizarre bug on SunOS 4.1.3. if $ac_need_defaults; then test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands fi # Have a temporary directory for convenience. Make it in the build tree # simply because there is no reason against having it here, and in addition, # creating and moving files from /tmp can sometimes cause problems. # Hook for its removal unless debugging. # Note that there is a small window in which the directory will not be cleaned: # after its creation but before its name has been assigned to `$tmp'. $debug || { tmp= ac_tmp= trap 'exit_status=$? : "${ac_tmp:=$tmp}" { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status ' 0 trap 'as_fn_exit 1' 1 2 13 15 } # Create a (secure) tmp directory for tmp files. { tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && test -d "$tmp" } || { tmp=./conf$$-$RANDOM (umask 077 && mkdir "$tmp") } || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5 ac_tmp=$tmp # Set up the scripts for CONFIG_FILES section. # No need to generate them if there are no CONFIG_FILES. # This happens for instance with `./config.status config.h'. if test -n "$CONFIG_FILES"; then ac_cr=`echo X | tr X '\015'` # On cygwin, bash can eat \r inside `` if the user requested igncr. # But we know of no other shell where ac_cr would be empty at this # point, so we can use a bashism as a fallback. if test "x$ac_cr" = x; then eval ac_cr=\$\'\\r\' fi ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null` if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then ac_cs_awk_cr='\\r' else ac_cs_awk_cr=$ac_cr fi echo 'BEGIN {' >"$ac_tmp/subs1.awk" && _ACEOF { echo "cat >conf$$subs.awk <<_ACEOF" && echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' && echo "_ACEOF" } >conf$$subs.sh || as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'` ac_delim='%!_!# ' for ac_last_try in false false false false false :; do . ./conf$$subs.sh || as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X` if test $ac_delim_n = $ac_delim_num; then break elif $ac_last_try; then as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 else ac_delim="$ac_delim!$ac_delim _$ac_delim!! " fi done rm -f conf$$subs.sh cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK && _ACEOF sed -n ' h s/^/S["/; s/!.*/"]=/ p g s/^[^!]*!// :repl t repl s/'"$ac_delim"'$// t delim :nl h s/\(.\{148\}\)..*/\1/ t more1 s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/ p n b repl :more1 s/["\\]/\\&/g; s/^/"/; s/$/"\\/ p g s/.\{148\}// t nl :delim h s/\(.\{148\}\)..*/\1/ t more2 s/["\\]/\\&/g; s/^/"/; s/$/"/ p b :more2 s/["\\]/\\&/g; s/^/"/; s/$/"\\/ p g s/.\{148\}// t delim ' >$CONFIG_STATUS || ac_write_fail=1 rm -f conf$$subs.awk cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 _ACAWK cat >>"\$ac_tmp/subs1.awk" <<_ACAWK && for (key in S) S_is_set[key] = 1 FS = "" } { line = $ 0 nfields = split(line, field, "@") substed = 0 len = length(field[1]) for (i = 2; i < nfields; i++) { key = field[i] keylen = length(key) if (S_is_set[key]) { value = S[key] line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3) len += length(value) + length(field[++i]) substed = 1 } else len += 1 + keylen } print line } _ACAWK _ACEOF cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g" else cat fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \ || as_fn_error $? "could not setup config files machinery" "$LINENO" 5 _ACEOF # VPATH may cause trouble with some makes, so we remove sole $(srcdir), # ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and # trailing colons and then remove the whole line if VPATH becomes empty # (actually we leave an empty line to preserve line numbers). if test "x$srcdir" = x.; then ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{ h s/// s/^/:/ s/[ ]*$/:/ s/:\$(srcdir):/:/g s/:\${srcdir}:/:/g s/:@srcdir@:/:/g s/^:*// s/:*$// x s/\(=[ ]*\).*/\1/ G s/\n// s/^[^=]*=[ ]*$// }' fi cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 fi # test -n "$CONFIG_FILES" # Set up the scripts for CONFIG_HEADERS section. # No need to generate them if there are no CONFIG_HEADERS. # This happens for instance with `./config.status Makefile'. if test -n "$CONFIG_HEADERS"; then cat >"$ac_tmp/defines.awk" <<\_ACAWK || BEGIN { _ACEOF # Transform confdefs.h into an awk script `defines.awk', embedded as # here-document in config.status, that substitutes the proper values into # config.h.in to produce config.h. # Create a delimiter string that does not exist in confdefs.h, to ease # handling of long lines. ac_delim='%!_!# ' for ac_last_try in false false :; do ac_tt=`sed -n "/$ac_delim/p" confdefs.h` if test -z "$ac_tt"; then break elif $ac_last_try; then as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5 else ac_delim="$ac_delim!$ac_delim _$ac_delim!! " fi done # For the awk script, D is an array of macro values keyed by name, # likewise P contains macro parameters if any. Preserve backslash # newline sequences. ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]* sed -n ' s/.\{148\}/&'"$ac_delim"'/g t rset :rset s/^[ ]*#[ ]*define[ ][ ]*/ / t def d :def s/\\$// t bsnl s/["\\]/\\&/g s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ D["\1"]=" \3"/p s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2"/p d :bsnl s/["\\]/\\&/g s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ D["\1"]=" \3\\\\\\n"\\/p t cont s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p t cont d :cont n s/.\{148\}/&'"$ac_delim"'/g t clear :clear s/\\$// t bsnlc s/["\\]/\\&/g; s/^/"/; s/$/"/p d :bsnlc s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p b cont ' >$CONFIG_STATUS || ac_write_fail=1 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 for (key in D) D_is_set[key] = 1 FS = "" } /^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ { line = \$ 0 split(line, arg, " ") if (arg[1] == "#") { defundef = arg[2] mac1 = arg[3] } else { defundef = substr(arg[1], 2) mac1 = arg[2] } split(mac1, mac2, "(") #) macro = mac2[1] prefix = substr(line, 1, index(line, defundef) - 1) if (D_is_set[macro]) { # Preserve the white space surrounding the "#". print prefix "define", macro P[macro] D[macro] next } else { # Replace #undef with comments. This is necessary, for example, # in the case of _POSIX_SOURCE, which is predefined and required # on some systems where configure will not decide to define it. if (defundef == "undef") { print "/*", prefix defundef, macro, "*/" next } } } { print } _ACAWK _ACEOF cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 fi # test -n "$CONFIG_HEADERS" eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS :C $CONFIG_COMMANDS" shift for ac_tag do case $ac_tag in :[FHLC]) ac_mode=$ac_tag; continue;; esac case $ac_mode$ac_tag in :[FHL]*:*);; :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;; :[FH]-) ac_tag=-:-;; :[FH]*) ac_tag=$ac_tag:$ac_tag.in;; esac ac_save_IFS=$IFS IFS=: set x $ac_tag IFS=$ac_save_IFS shift ac_file=$1 shift case $ac_mode in :L) ac_source=$1;; :[FH]) ac_file_inputs= for ac_f do case $ac_f in -) ac_f="$ac_tmp/stdin";; *) # Look for the file first in the build tree, then in the source tree # (if the path is not absolute). The absolute path cannot be DOS-style, # because $ac_f cannot contain `:'. test -f "$ac_f" || case $ac_f in [\\/$]*) false;; *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";; esac || as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;; esac case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac as_fn_append ac_file_inputs " '$ac_f'" done # Let's still pretend it is `configure' which instantiates (i.e., don't # use $as_me), people would be surprised to read: # /* config.h. Generated by config.status. */ configure_input='Generated from '` $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g' `' by configure.' if test x"$ac_file" != x-; then configure_input="$ac_file. $configure_input" { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5 $as_echo "$as_me: creating $ac_file" >&6;} fi # Neutralize special characters interpreted by sed in replacement strings. case $configure_input in #( *\&* | *\|* | *\\* ) ac_sed_conf_input=`$as_echo "$configure_input" | sed 's/[\\\\&|]/\\\\&/g'`;; #( *) ac_sed_conf_input=$configure_input;; esac case $ac_tag in *:-:* | *:-) cat >"$ac_tmp/stdin" \ || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;; esac ;; esac ac_dir=`$as_dirname -- "$ac_file" || $as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ X"$ac_file" : 'X\(//\)[^/]' \| \ X"$ac_file" : 'X\(//\)$' \| \ X"$ac_file" : 'X\(/\)' \| . 2>/dev/null || $as_echo X"$ac_file" | sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/ q } /^X\(\/\/\)[^/].*/{ s//\1/ q } /^X\(\/\/\)$/{ s//\1/ q } /^X\(\/\).*/{ s//\1/ q } s/.*/./; q'` as_dir="$ac_dir"; as_fn_mkdir_p ac_builddir=. case "$ac_dir" in .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;; *) ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'` # A ".." for each directory in $ac_dir_suffix. ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'` case $ac_top_builddir_sub in "") ac_top_builddir_sub=. ac_top_build_prefix= ;; *) ac_top_build_prefix=$ac_top_builddir_sub/ ;; esac ;; esac ac_abs_top_builddir=$ac_pwd ac_abs_builddir=$ac_pwd$ac_dir_suffix # for backward compatibility: ac_top_builddir=$ac_top_build_prefix case $srcdir in .) # We are building in place. ac_srcdir=. ac_top_srcdir=$ac_top_builddir_sub ac_abs_top_srcdir=$ac_pwd ;; [\\/]* | ?:[\\/]* ) # Absolute name. ac_srcdir=$srcdir$ac_dir_suffix; ac_top_srcdir=$srcdir ac_abs_top_srcdir=$srcdir ;; *) # Relative name. ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix ac_top_srcdir=$ac_top_build_prefix$srcdir ac_abs_top_srcdir=$ac_pwd/$srcdir ;; esac ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix case $ac_mode in :F) # # CONFIG_FILE # case $INSTALL in [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;; *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;; esac _ACEOF cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 # If the template does not know about datarootdir, expand it. # FIXME: This hack should be removed a few years after 2.60. ac_datarootdir_hack=; ac_datarootdir_seen= ac_sed_dataroot=' /datarootdir/ { p q } /@datadir@/p /@docdir@/p /@infodir@/p /@localedir@/p /@mandir@/p' case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in *datarootdir*) ac_datarootdir_seen=yes;; *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5 $as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;} _ACEOF cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 ac_datarootdir_hack=' s&@datadir@&$datadir&g s&@docdir@&$docdir&g s&@infodir@&$infodir&g s&@localedir@&$localedir&g s&@mandir@&$mandir&g s&\\\${datarootdir}&$datarootdir&g' ;; esac _ACEOF # Neutralize VPATH when `$srcdir' = `.'. # Shell code in configure.ac might set extrasub. # FIXME: do we really want to maintain this feature? cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 ac_sed_extra="$ac_vpsub $extrasub _ACEOF cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 :t /@[a-zA-Z_][a-zA-Z_0-9]*@/!b s|@configure_input@|$ac_sed_conf_input|;t t s&@top_builddir@&$ac_top_builddir_sub&;t t s&@top_build_prefix@&$ac_top_build_prefix&;t t s&@srcdir@&$ac_srcdir&;t t s&@abs_srcdir@&$ac_abs_srcdir&;t t s&@top_srcdir@&$ac_top_srcdir&;t t s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t s&@builddir@&$ac_builddir&;t t s&@abs_builddir@&$ac_abs_builddir&;t t s&@abs_top_builddir@&$ac_abs_top_builddir&;t t s&@INSTALL@&$ac_INSTALL&;t t $ac_datarootdir_hack " eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \ >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5 test -z "$ac_datarootdir_hack$ac_datarootdir_seen" && { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } && { ac_out=`sed -n '/^[ ]*datarootdir[ ]*:*=/p' \ "$ac_tmp/out"`; test -z "$ac_out"; } && { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir' which seems to be undefined. Please make sure it is defined" >&5 $as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir' which seems to be undefined. Please make sure it is defined" >&2;} rm -f "$ac_tmp/stdin" case $ac_file in -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";; *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";; esac \ || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;; :H) # # CONFIG_HEADER # if test x"$ac_file" != x-; then { $as_echo "/* $configure_input */" \ && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" } >"$ac_tmp/config.h" \ || as_fn_error $? "could not create $ac_file" "$LINENO" 5 if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5 $as_echo "$as_me: $ac_file is unchanged" >&6;} else rm -f "$ac_file" mv "$ac_tmp/config.h" "$ac_file" \ || as_fn_error $? "could not create $ac_file" "$LINENO" 5 fi else $as_echo "/* $configure_input */" \ && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \ || as_fn_error $? "could not create -" "$LINENO" 5 fi ;; :C) { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5 $as_echo "$as_me: executing $ac_file commands" >&6;} ;; esac case $ac_file$ac_mode in "include/jemalloc/internal/size_classes.h":C) mkdir -p "include/jemalloc/internal" "${srcdir}/include/jemalloc/internal/size_classes.sh" > "${objroot}include/jemalloc/internal/size_classes.h" ;; esac done # for ac_tag as_fn_exit 0 _ACEOF ac_clean_files=$ac_clean_files_save test $ac_write_fail = 0 || as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 # configure is writing to config.log, and then calls config.status. # config.status does its own redirection, appending to config.log. # Unfortunately, on DOS this fails, as config.log is still kept open # by configure, so config.status won't be able to write to it; its # output is simply discarded. So we exec the FD to /dev/null, # effectively closing config.log, so it can be properly (re)opened and # appended to by config.status. When coming back to configure, we # need to make the FD available again. if test "$no_create" != yes; then ac_cs_success=: ac_config_status_args= test "$silent" = yes && ac_config_status_args="$ac_config_status_args --quiet" exec 5>/dev/null $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false exec 5>>config.log # Use ||, not &&, to avoid exiting from the if with $? = 1, which # would make configure fail if this is the last instruction. $ac_cs_success || as_fn_exit 1 fi if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: ===============================================================================" >&5 $as_echo "===============================================================================" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: jemalloc version : ${jemalloc_version}" >&5 $as_echo "jemalloc version : ${jemalloc_version}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: library revision : ${rev}" >&5 $as_echo "library revision : ${rev}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5 $as_echo "" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: CC : ${CC}" >&5 $as_echo "CC : ${CC}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: CPPFLAGS : ${CPPFLAGS}" >&5 $as_echo "CPPFLAGS : ${CPPFLAGS}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: CFLAGS : ${CFLAGS}" >&5 $as_echo "CFLAGS : ${CFLAGS}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: LDFLAGS : ${LDFLAGS}" >&5 $as_echo "LDFLAGS : ${LDFLAGS}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: LIBS : ${LIBS}" >&5 $as_echo "LIBS : ${LIBS}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: RPATH_EXTRA : ${RPATH_EXTRA}" >&5 $as_echo "RPATH_EXTRA : ${RPATH_EXTRA}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5 $as_echo "" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: XSLTPROC : ${XSLTPROC}" >&5 $as_echo "XSLTPROC : ${XSLTPROC}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: XSLROOT : ${XSLROOT}" >&5 $as_echo "XSLROOT : ${XSLROOT}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5 $as_echo "" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: PREFIX : ${PREFIX}" >&5 $as_echo "PREFIX : ${PREFIX}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: BINDIR : ${BINDIR}" >&5 $as_echo "BINDIR : ${BINDIR}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: INCLUDEDIR : ${INCLUDEDIR}" >&5 $as_echo "INCLUDEDIR : ${INCLUDEDIR}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: LIBDIR : ${LIBDIR}" >&5 $as_echo "LIBDIR : ${LIBDIR}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: DATADIR : ${DATADIR}" >&5 $as_echo "DATADIR : ${DATADIR}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: MANDIR : ${MANDIR}" >&5 $as_echo "MANDIR : ${MANDIR}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5 $as_echo "" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: srcroot : ${srcroot}" >&5 $as_echo "srcroot : ${srcroot}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: abs_srcroot : ${abs_srcroot}" >&5 $as_echo "abs_srcroot : ${abs_srcroot}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: objroot : ${objroot}" >&5 $as_echo "objroot : ${objroot}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: abs_objroot : ${abs_objroot}" >&5 $as_echo "abs_objroot : ${abs_objroot}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5 $as_echo "" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: JEMALLOC_PREFIX : ${JEMALLOC_PREFIX}" >&5 $as_echo "JEMALLOC_PREFIX : ${JEMALLOC_PREFIX}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: JEMALLOC_PRIVATE_NAMESPACE" >&5 $as_echo "JEMALLOC_PRIVATE_NAMESPACE" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: : ${JEMALLOC_PRIVATE_NAMESPACE}" >&5 $as_echo " : ${JEMALLOC_PRIVATE_NAMESPACE}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: install_suffix : ${install_suffix}" >&5 $as_echo "install_suffix : ${install_suffix}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: autogen : ${enable_autogen}" >&5 $as_echo "autogen : ${enable_autogen}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: experimental : ${enable_experimental}" >&5 $as_echo "experimental : ${enable_experimental}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: cc-silence : ${enable_cc_silence}" >&5 $as_echo "cc-silence : ${enable_cc_silence}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: debug : ${enable_debug}" >&5 $as_echo "debug : ${enable_debug}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: stats : ${enable_stats}" >&5 $as_echo "stats : ${enable_stats}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: prof : ${enable_prof}" >&5 $as_echo "prof : ${enable_prof}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: prof-libunwind : ${enable_prof_libunwind}" >&5 $as_echo "prof-libunwind : ${enable_prof_libunwind}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: prof-libgcc : ${enable_prof_libgcc}" >&5 $as_echo "prof-libgcc : ${enable_prof_libgcc}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: prof-gcc : ${enable_prof_gcc}" >&5 $as_echo "prof-gcc : ${enable_prof_gcc}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: tcache : ${enable_tcache}" >&5 $as_echo "tcache : ${enable_tcache}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: fill : ${enable_fill}" >&5 $as_echo "fill : ${enable_fill}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: utrace : ${enable_utrace}" >&5 $as_echo "utrace : ${enable_utrace}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: valgrind : ${enable_valgrind}" >&5 $as_echo "valgrind : ${enable_valgrind}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: xmalloc : ${enable_xmalloc}" >&5 $as_echo "xmalloc : ${enable_xmalloc}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: mremap : ${enable_mremap}" >&5 $as_echo "mremap : ${enable_mremap}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: munmap : ${enable_munmap}" >&5 $as_echo "munmap : ${enable_munmap}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: dss : ${enable_dss}" >&5 $as_echo "dss : ${enable_dss}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: lazy_lock : ${enable_lazy_lock}" >&5 $as_echo "lazy_lock : ${enable_lazy_lock}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: tls : ${enable_tls}" >&5 $as_echo "tls : ${enable_tls}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: result: ===============================================================================" >&5 $as_echo "===============================================================================" >&6; } �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������redis-2.6.16/deps/jemalloc/configure.ac�������������������������������������������������������������0000664�0000000�0000000�00000114423�12207342231�0017724�0����������������������������������������������������������������������������������������������������ustar�00root����������������������������root����������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������dnl Process this file with autoconf to produce a configure script. AC_INIT([Makefile.in]) dnl ============================================================================ dnl Custom macro definitions. dnl JE_CFLAGS_APPEND(cflag) AC_DEFUN([JE_CFLAGS_APPEND], [ AC_MSG_CHECKING([whether compiler supports $1]) TCFLAGS="${CFLAGS}" if test "x${CFLAGS}" = "x" ; then CFLAGS="$1" else CFLAGS="${CFLAGS} $1" fi AC_COMPILE_IFELSE([AC_LANG_PROGRAM( [[ ]], [[ return 0; ]])], AC_MSG_RESULT([yes]), AC_MSG_RESULT([no]) [CFLAGS="${TCFLAGS}"] ) ]) dnl JE_COMPILABLE(label, hcode, mcode, rvar) dnl dnl Use AC_LINK_IFELSE() rather than AC_COMPILE_IFELSE() so that linker errors dnl cause failure. AC_DEFUN([JE_COMPILABLE], [ AC_CACHE_CHECK([whether $1 is compilable], [$4], [AC_LINK_IFELSE([AC_LANG_PROGRAM([$2], [$3])], [$4=yes], [$4=no])]) ]) dnl ============================================================================ dnl Library revision. rev=1 AC_SUBST([rev]) srcroot=$srcdir if test "x${srcroot}" = "x." ; then srcroot="" else srcroot="${srcroot}/" fi AC_SUBST([srcroot]) abs_srcroot="`cd \"${srcdir}\"; pwd`/" AC_SUBST([abs_srcroot]) objroot="" AC_SUBST([objroot]) abs_objroot="`pwd`/" AC_SUBST([abs_objroot]) dnl Munge install path variables. if test "x$prefix" = "xNONE" ; then prefix="/usr/local" fi if test "x$exec_prefix" = "xNONE" ; then exec_prefix=$prefix fi PREFIX=$prefix AC_SUBST([PREFIX]) BINDIR=`eval echo $bindir` BINDIR=`eval echo $BINDIR` AC_SUBST([BINDIR]) INCLUDEDIR=`eval echo $includedir` INCLUDEDIR=`eval echo $INCLUDEDIR` AC_SUBST([INCLUDEDIR]) LIBDIR=`eval echo $libdir` LIBDIR=`eval echo $LIBDIR` AC_SUBST([LIBDIR]) DATADIR=`eval echo $datadir` DATADIR=`eval echo $DATADIR` AC_SUBST([DATADIR]) MANDIR=`eval echo $mandir` MANDIR=`eval echo $MANDIR` AC_SUBST([MANDIR]) dnl Support for building documentation. AC_PATH_PROG([XSLTPROC], [xsltproc], , [$PATH]) if test -d "/usr/share/xml/docbook/stylesheet/docbook-xsl" ; then DEFAULT_XSLROOT="/usr/share/xml/docbook/stylesheet/docbook-xsl" elif test -d "/usr/share/sgml/docbook/xsl-stylesheets" ; then DEFAULT_XSLROOT="/usr/share/sgml/docbook/xsl-stylesheets" else dnl Documentation building will fail if this default gets used. DEFAULT_XSLROOT="" fi AC_ARG_WITH([xslroot], [AS_HELP_STRING([--with-xslroot=], [XSL stylesheet root path])], [ if test "x$with_xslroot" = "xno" ; then XSLROOT="${DEFAULT_XSLROOT}" else XSLROOT="${with_xslroot}" fi ], XSLROOT="${DEFAULT_XSLROOT}" ) AC_SUBST([XSLROOT]) dnl If CFLAGS isn't defined, set CFLAGS to something reasonable. Otherwise, dnl just prevent autoconf from molesting CFLAGS. CFLAGS=$CFLAGS AC_PROG_CC if test "x$GCC" != "xyes" ; then AC_CACHE_CHECK([whether compiler is MSVC], [je_cv_msvc], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ #ifndef _MSC_VER int fail[-1]; #endif ])], [je_cv_msvc=yes], [je_cv_msvc=no])]) fi if test "x$CFLAGS" = "x" ; then no_CFLAGS="yes" if test "x$GCC" = "xyes" ; then JE_CFLAGS_APPEND([-std=gnu99]) JE_CFLAGS_APPEND([-Wall]) JE_CFLAGS_APPEND([-pipe]) JE_CFLAGS_APPEND([-g3]) elif test "x$je_cv_msvc" = "xyes" ; then CC="$CC -nologo" JE_CFLAGS_APPEND([-Zi]) JE_CFLAGS_APPEND([-MT]) JE_CFLAGS_APPEND([-W3]) CPPFLAGS="$CPPFLAGS -I${srcroot}/include/msvc_compat" fi fi dnl Append EXTRA_CFLAGS to CFLAGS, if defined. if test "x$EXTRA_CFLAGS" != "x" ; then JE_CFLAGS_APPEND([$EXTRA_CFLAGS]) fi AC_PROG_CPP AC_CHECK_SIZEOF([void *]) if test "x${ac_cv_sizeof_void_p}" = "x8" ; then LG_SIZEOF_PTR=3 elif test "x${ac_cv_sizeof_void_p}" = "x4" ; then LG_SIZEOF_PTR=2 else AC_MSG_ERROR([Unsupported pointer size: ${ac_cv_sizeof_void_p}]) fi AC_DEFINE_UNQUOTED([LG_SIZEOF_PTR], [$LG_SIZEOF_PTR]) AC_CHECK_SIZEOF([int]) if test "x${ac_cv_sizeof_int}" = "x8" ; then LG_SIZEOF_INT=3 elif test "x${ac_cv_sizeof_int}" = "x4" ; then LG_SIZEOF_INT=2 else AC_MSG_ERROR([Unsupported int size: ${ac_cv_sizeof_int}]) fi AC_DEFINE_UNQUOTED([LG_SIZEOF_INT], [$LG_SIZEOF_INT]) AC_CHECK_SIZEOF([long]) if test "x${ac_cv_sizeof_long}" = "x8" ; then LG_SIZEOF_LONG=3 elif test "x${ac_cv_sizeof_long}" = "x4" ; then LG_SIZEOF_LONG=2 else AC_MSG_ERROR([Unsupported long size: ${ac_cv_sizeof_long}]) fi AC_DEFINE_UNQUOTED([LG_SIZEOF_LONG], [$LG_SIZEOF_LONG]) AC_CHECK_SIZEOF([intmax_t]) if test "x${ac_cv_sizeof_intmax_t}" = "x16" ; then LG_SIZEOF_INTMAX_T=4 elif test "x${ac_cv_sizeof_intmax_t}" = "x8" ; then LG_SIZEOF_INTMAX_T=3 elif test "x${ac_cv_sizeof_intmax_t}" = "x4" ; then LG_SIZEOF_INTMAX_T=2 else AC_MSG_ERROR([Unsupported intmax_t size: ${ac_cv_sizeof_intmax_t}]) fi AC_DEFINE_UNQUOTED([LG_SIZEOF_INTMAX_T], [$LG_SIZEOF_INTMAX_T]) AC_CANONICAL_HOST dnl CPU-specific settings. CPU_SPINWAIT="" case "${host_cpu}" in i[[345]]86) ;; i686) JE_COMPILABLE([__asm__], [], [[__asm__ volatile("pause"); return 0;]], [je_cv_asm]) if test "x${je_cv_asm}" = "xyes" ; then CPU_SPINWAIT='__asm__ volatile("pause")' fi ;; x86_64) JE_COMPILABLE([__asm__ syntax], [], [[__asm__ volatile("pause"); return 0;]], [je_cv_asm]) if test "x${je_cv_asm}" = "xyes" ; then CPU_SPINWAIT='__asm__ volatile("pause")' fi ;; *) ;; esac AC_DEFINE_UNQUOTED([CPU_SPINWAIT], [$CPU_SPINWAIT]) LD_PRELOAD_VAR="LD_PRELOAD" so="so" importlib="${so}" o="$ac_objext" a="a" exe="$ac_exeext" libprefix="lib" DSO_LDFLAGS='-shared -Wl,-soname,$(@F)' RPATH='-Wl,-rpath,$(1)' SOREV="${so}.${rev}" PIC_CFLAGS='-fPIC -DPIC' CTARGET='-o $@' LDTARGET='-o $@' EXTRA_LDFLAGS= MKLIB='ar crus $@' CC_MM=1 dnl Platform-specific settings. abi and RPATH can probably be determined dnl programmatically, but doing so is error-prone, which makes it generally dnl not worth the trouble. dnl dnl Define cpp macros in CPPFLAGS, rather than doing AC_DEFINE(macro), since the dnl definitions need to be seen before any headers are included, which is a pain dnl to make happen otherwise. default_munmap="1" JEMALLOC_USABLE_SIZE_CONST="const" case "${host}" in *-*-darwin*) CFLAGS="$CFLAGS" abi="macho" AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ]) RPATH="" LD_PRELOAD_VAR="DYLD_INSERT_LIBRARIES" so="dylib" importlib="${so}" force_tls="0" DSO_LDFLAGS='-shared -Wl,-dylib_install_name,$(@F)' SOREV="${rev}.${so}" ;; *-*-freebsd*) CFLAGS="$CFLAGS" abi="elf" AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ]) force_lazy_lock="1" ;; *-*-linux*) CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE" abi="elf" AC_DEFINE([JEMALLOC_PURGE_MADVISE_DONTNEED], [ ]) AC_DEFINE([JEMALLOC_THREADED_INIT], [ ]) JEMALLOC_USABLE_SIZE_CONST="" default_munmap="0" ;; *-*-netbsd*) AC_MSG_CHECKING([ABI]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM( [[#ifdef __ELF__ /* ELF */ #else #error aout #endif ]])], [CFLAGS="$CFLAGS"; abi="elf"], [abi="aout"]) AC_MSG_RESULT([$abi]) AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ]) ;; *-*-solaris2*) CFLAGS="$CFLAGS" abi="elf" RPATH='-Wl,-R,$(1)' dnl Solaris needs this for sigwait(). CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS" LIBS="$LIBS -lposix4 -lsocket -lnsl" ;; *-ibm-aix*) if "$LG_SIZEOF_PTR" = "8"; then dnl 64bit AIX LD_PRELOAD_VAR="LDR_PRELOAD64" else dnl 32bit AIX LD_PRELOAD_VAR="LDR_PRELOAD" fi abi="xcoff" ;; *-*-mingw*) abi="pecoff" force_tls="0" RPATH="" so="dll" if test "x$je_cv_msvc" = "xyes" ; then importlib="lib" DSO_LDFLAGS="-LD" EXTRA_LDFLAGS="-link -DEBUG" CTARGET='-Fo$@' LDTARGET='-Fe$@' MKLIB='lib -nologo -out:$@' CC_MM= else importlib="${so}" DSO_LDFLAGS="-shared" fi a="lib" libprefix="" SOREV="${so}" PIC_CFLAGS="" ;; *) AC_MSG_RESULT([Unsupported operating system: ${host}]) abi="elf" ;; esac AC_DEFINE_UNQUOTED([JEMALLOC_USABLE_SIZE_CONST], [$JEMALLOC_USABLE_SIZE_CONST]) AC_SUBST([abi]) AC_SUBST([RPATH]) AC_SUBST([LD_PRELOAD_VAR]) AC_SUBST([so]) AC_SUBST([importlib]) AC_SUBST([o]) AC_SUBST([a]) AC_SUBST([exe]) AC_SUBST([libprefix]) AC_SUBST([DSO_LDFLAGS]) AC_SUBST([EXTRA_LDFLAGS]) AC_SUBST([SOREV]) AC_SUBST([PIC_CFLAGS]) AC_SUBST([CTARGET]) AC_SUBST([LDTARGET]) AC_SUBST([MKLIB]) AC_SUBST([CC_MM]) if test "x$abi" != "xpecoff"; then dnl Heap profiling uses the log(3) function. LIBS="$LIBS -lm" fi JE_COMPILABLE([__attribute__ syntax], [static __attribute__((unused)) void foo(void){}], [], [je_cv_attribute]) if test "x${je_cv_attribute}" = "xyes" ; then AC_DEFINE([JEMALLOC_HAVE_ATTR], [ ]) if test "x${GCC}" = "xyes" -a "x${abi}" = "xelf"; then JE_CFLAGS_APPEND([-fvisibility=hidden]) fi fi dnl Check for tls_model attribute support (clang 3.0 still lacks support). SAVED_CFLAGS="${CFLAGS}" JE_CFLAGS_APPEND([-Werror]) JE_COMPILABLE([tls_model attribute], [], [static __thread int __attribute__((tls_model("initial-exec"))) foo; foo = 0;], [je_cv_tls_model]) CFLAGS="${SAVED_CFLAGS}" if test "x${je_cv_tls_model}" = "xyes" ; then AC_DEFINE([JEMALLOC_TLS_MODEL], [__attribute__((tls_model("initial-exec")))]) else AC_DEFINE([JEMALLOC_TLS_MODEL], [ ]) fi dnl Support optional additions to rpath. AC_ARG_WITH([rpath], [AS_HELP_STRING([--with-rpath=], [Colon-separated rpath (ELF systems only)])], if test "x$with_rpath" = "xno" ; then RPATH_EXTRA= else RPATH_EXTRA="`echo $with_rpath | tr \":\" \" \"`" fi, RPATH_EXTRA= ) AC_SUBST([RPATH_EXTRA]) dnl Disable rules that do automatic regeneration of configure output by default. AC_ARG_ENABLE([autogen], [AS_HELP_STRING([--enable-autogen], [Automatically regenerate configure output])], if test "x$enable_autogen" = "xno" ; then enable_autogen="0" else enable_autogen="1" fi , enable_autogen="0" ) AC_SUBST([enable_autogen]) AC_PROG_INSTALL AC_PROG_RANLIB AC_PATH_PROG([AR], [ar], , [$PATH]) AC_PATH_PROG([LD], [ld], , [$PATH]) AC_PATH_PROG([AUTOCONF], [autoconf], , [$PATH]) public_syms="malloc_conf malloc_message malloc calloc posix_memalign aligned_alloc realloc free malloc_usable_size malloc_stats_print mallctl mallctlnametomib mallctlbymib" dnl Check for allocator-related functions that should be wrapped. AC_CHECK_FUNC([memalign], [AC_DEFINE([JEMALLOC_OVERRIDE_MEMALIGN], [ ]) public_syms="${public_syms} memalign"]) AC_CHECK_FUNC([valloc], [AC_DEFINE([JEMALLOC_OVERRIDE_VALLOC], [ ]) public_syms="${public_syms} valloc"]) dnl Support the experimental API by default. AC_ARG_ENABLE([experimental], [AS_HELP_STRING([--disable-experimental], [Disable support for the experimental API])], [if test "x$enable_experimental" = "xno" ; then enable_experimental="0" else enable_experimental="1" fi ], [enable_experimental="1"] ) if test "x$enable_experimental" = "x1" ; then AC_DEFINE([JEMALLOC_EXPERIMENTAL], [ ]) public_syms="${public_syms} allocm dallocm nallocm rallocm sallocm" fi AC_SUBST([enable_experimental]) dnl Perform no name mangling by default. AC_ARG_WITH([mangling], [AS_HELP_STRING([--with-mangling=], [Mangle symbols in ])], [mangling_map="$with_mangling"], [mangling_map=""]) for nm in `echo ${mangling_map} |tr ',' ' '` ; do k="`echo ${nm} |tr ':' ' ' |awk '{print $1}'`" n="je_${k}" m=`echo ${nm} |tr ':' ' ' |awk '{print $2}'` AC_DEFINE_UNQUOTED([${n}], [${m}]) dnl Remove key from public_syms so that it isn't redefined later. public_syms=`for sym in ${public_syms}; do echo "${sym}"; done |grep -v "^${k}\$" |tr '\n' ' '` done dnl Do not prefix public APIs by default. AC_ARG_WITH([jemalloc_prefix], [AS_HELP_STRING([--with-jemalloc-prefix=], [Prefix to prepend to all public APIs])], [JEMALLOC_PREFIX="$with_jemalloc_prefix"], [if test "x$abi" != "xmacho" -a "x$abi" != "xpecoff"; then JEMALLOC_PREFIX="" else JEMALLOC_PREFIX="je_" fi] ) if test "x$JEMALLOC_PREFIX" != "x" ; then JEMALLOC_CPREFIX=`echo ${JEMALLOC_PREFIX} | tr "a-z" "A-Z"` AC_DEFINE_UNQUOTED([JEMALLOC_PREFIX], ["$JEMALLOC_PREFIX"]) AC_DEFINE_UNQUOTED([JEMALLOC_CPREFIX], ["$JEMALLOC_CPREFIX"]) fi dnl Generate macros to rename public symbols. All public symbols are prefixed dnl with je_ in the source code, so these macro definitions are needed even if dnl --with-jemalloc-prefix wasn't specified. for stem in ${public_syms}; do n="je_${stem}" m="${JEMALLOC_PREFIX}${stem}" AC_DEFINE_UNQUOTED([${n}], [${m}]) done dnl Do not mangle library-private APIs by default. AC_ARG_WITH([private_namespace], [AS_HELP_STRING([--with-private-namespace=], [Prefix to prepend to all library-private APIs])], [JEMALLOC_PRIVATE_NAMESPACE="$with_private_namespace"], [JEMALLOC_PRIVATE_NAMESPACE=""] ) AC_DEFINE_UNQUOTED([JEMALLOC_PRIVATE_NAMESPACE], ["$JEMALLOC_PRIVATE_NAMESPACE"]) if test "x$JEMALLOC_PRIVATE_NAMESPACE" != "x" ; then AC_DEFINE_UNQUOTED([JEMALLOC_N(string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix)], [${JEMALLOC_PRIVATE_NAMESPACE}##string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix]) else AC_DEFINE_UNQUOTED([JEMALLOC_N(string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix)], [string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix]) fi dnl Do not add suffix to installed files by default. AC_ARG_WITH([install_suffix], [AS_HELP_STRING([--with-install-suffix=], [Suffix to append to all installed files])], [INSTALL_SUFFIX="$with_install_suffix"], [INSTALL_SUFFIX=] ) install_suffix="$INSTALL_SUFFIX" AC_SUBST([install_suffix]) cfgoutputs_in="${srcroot}Makefile.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}doc/html.xsl.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}doc/manpages.xsl.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}doc/jemalloc.xml.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}include/jemalloc/jemalloc.h.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}include/jemalloc/internal/jemalloc_internal.h.in" cfgoutputs_in="${cfgoutputs_in} ${srcroot}test/jemalloc_test.h.in" cfgoutputs_out="Makefile" cfgoutputs_out="${cfgoutputs_out} doc/html.xsl" cfgoutputs_out="${cfgoutputs_out} doc/manpages.xsl" cfgoutputs_out="${cfgoutputs_out} doc/jemalloc${install_suffix}.xml" cfgoutputs_out="${cfgoutputs_out} include/jemalloc/jemalloc${install_suffix}.h" cfgoutputs_out="${cfgoutputs_out} include/jemalloc/internal/jemalloc_internal.h" cfgoutputs_out="${cfgoutputs_out} test/jemalloc_test.h" cfgoutputs_tup="Makefile" cfgoutputs_tup="${cfgoutputs_tup} doc/html.xsl:doc/html.xsl.in" cfgoutputs_tup="${cfgoutputs_tup} doc/manpages.xsl:doc/manpages.xsl.in" cfgoutputs_tup="${cfgoutputs_tup} doc/jemalloc${install_suffix}.xml:doc/jemalloc.xml.in" cfgoutputs_tup="${cfgoutputs_tup} include/jemalloc/jemalloc${install_suffix}.h:include/jemalloc/jemalloc.h.in" cfgoutputs_tup="${cfgoutputs_tup} include/jemalloc/internal/jemalloc_internal.h" cfgoutputs_tup="${cfgoutputs_tup} test/jemalloc_test.h:test/jemalloc_test.h.in" cfghdrs_in="${srcroot}include/jemalloc/jemalloc_defs.h.in" cfghdrs_in="${cfghdrs_in} ${srcroot}include/jemalloc/internal/size_classes.sh" cfghdrs_out="include/jemalloc/jemalloc_defs${install_suffix}.h" cfghdrs_out="${cfghdrs_out} include/jemalloc/internal/size_classes.h" cfghdrs_tup="include/jemalloc/jemalloc_defs${install_suffix}.h:include/jemalloc/jemalloc_defs.h.in" dnl Do not silence irrelevant compiler warnings by default, since enabling this dnl option incurs a performance penalty. AC_ARG_ENABLE([cc-silence], [AS_HELP_STRING([--enable-cc-silence], [Silence irrelevant compiler warnings])], [if test "x$enable_cc_silence" = "xno" ; then enable_cc_silence="0" else enable_cc_silence="1" fi ], [enable_cc_silence="0"] ) if test "x$enable_cc_silence" = "x1" ; then AC_DEFINE([JEMALLOC_CC_SILENCE], [ ]) fi dnl Do not compile with debugging by default. AC_ARG_ENABLE([debug], [AS_HELP_STRING([--enable-debug], [Build debugging code])], [if test "x$enable_debug" = "xno" ; then enable_debug="0" else enable_debug="1" fi ], [enable_debug="0"] ) if test "x$enable_debug" = "x1" ; then AC_DEFINE([JEMALLOC_DEBUG], [ ]) AC_DEFINE([JEMALLOC_IVSALLOC], [ ]) fi AC_SUBST([enable_debug]) dnl Only optimize if not debugging. if test "x$enable_debug" = "x0" -a "x$no_CFLAGS" = "xyes" ; then dnl Make sure that an optimization flag was not specified in EXTRA_CFLAGS. optimize="no" echo "$EXTRA_CFLAGS" | grep "\-O" >/dev/null || optimize="yes" if test "x${optimize}" = "xyes" ; then if test "x$GCC" = "xyes" ; then JE_CFLAGS_APPEND([-O3]) JE_CFLAGS_APPEND([-funroll-loops]) elif test "x$je_cv_msvc" = "xyes" ; then JE_CFLAGS_APPEND([-O2]) else JE_CFLAGS_APPEND([-O]) fi fi fi dnl Enable statistics calculation by default. AC_ARG_ENABLE([stats], [AS_HELP_STRING([--disable-stats], [Disable statistics calculation/reporting])], [if test "x$enable_stats" = "xno" ; then enable_stats="0" else enable_stats="1" fi ], [enable_stats="1"] ) if test "x$enable_stats" = "x1" ; then AC_DEFINE([JEMALLOC_STATS], [ ]) fi AC_SUBST([enable_stats]) dnl Do not enable profiling by default. AC_ARG_ENABLE([prof], [AS_HELP_STRING([--enable-prof], [Enable allocation profiling])], [if test "x$enable_prof" = "xno" ; then enable_prof="0" else enable_prof="1" fi ], [enable_prof="0"] ) if test "x$enable_prof" = "x1" ; then backtrace_method="" else backtrace_method="N/A" fi AC_ARG_ENABLE([prof-libunwind], [AS_HELP_STRING([--enable-prof-libunwind], [Use libunwind for backtracing])], [if test "x$enable_prof_libunwind" = "xno" ; then enable_prof_libunwind="0" else enable_prof_libunwind="1" fi ], [enable_prof_libunwind="0"] ) AC_ARG_WITH([static_libunwind], [AS_HELP_STRING([--with-static-libunwind=], [Path to static libunwind library; use rather than dynamically linking])], if test "x$with_static_libunwind" = "xno" ; then LUNWIND="-lunwind" else if test ! -f "$with_static_libunwind" ; then AC_MSG_ERROR([Static libunwind not found: $with_static_libunwind]) fi LUNWIND="$with_static_libunwind" fi, LUNWIND="-lunwind" ) if test "x$backtrace_method" = "x" -a "x$enable_prof_libunwind" = "x1" ; then AC_CHECK_HEADERS([libunwind.h], , [enable_prof_libunwind="0"]) if test "x$LUNWIND" = "x-lunwind" ; then AC_CHECK_LIB([unwind], [backtrace], [LIBS="$LIBS $LUNWIND"], [enable_prof_libunwind="0"]) else LIBS="$LIBS $LUNWIND" fi if test "x${enable_prof_libunwind}" = "x1" ; then backtrace_method="libunwind" AC_DEFINE([JEMALLOC_PROF_LIBUNWIND], [ ]) fi fi AC_ARG_ENABLE([prof-libgcc], [AS_HELP_STRING([--disable-prof-libgcc], [Do not use libgcc for backtracing])], [if test "x$enable_prof_libgcc" = "xno" ; then enable_prof_libgcc="0" else enable_prof_libgcc="1" fi ], [enable_prof_libgcc="1"] ) if test "x$backtrace_method" = "x" -a "x$enable_prof_libgcc" = "x1" \ -a "x$GCC" = "xyes" ; then AC_CHECK_HEADERS([unwind.h], , [enable_prof_libgcc="0"]) AC_CHECK_LIB([gcc], [_Unwind_Backtrace], [LIBS="$LIBS -lgcc"], [enable_prof_libgcc="0"]) dnl The following is conservative, in that it only has entries for CPUs on dnl which jemalloc has been tested. AC_MSG_CHECKING([libgcc-based backtracing reliability on ${host_cpu}]) case "${host_cpu}" in i[[3456]]86) AC_MSG_RESULT([unreliable]) enable_prof_libgcc="0"; ;; x86_64) AC_MSG_RESULT([reliable]) ;; *) AC_MSG_RESULT([unreliable]) enable_prof_libgcc="0"; ;; esac if test "x${enable_prof_libgcc}" = "x1" ; then backtrace_method="libgcc" AC_DEFINE([JEMALLOC_PROF_LIBGCC], [ ]) fi else enable_prof_libgcc="0" fi AC_ARG_ENABLE([prof-gcc], [AS_HELP_STRING([--disable-prof-gcc], [Do not use gcc intrinsics for backtracing])], [if test "x$enable_prof_gcc" = "xno" ; then enable_prof_gcc="0" else enable_prof_gcc="1" fi ], [enable_prof_gcc="1"] ) if test "x$backtrace_method" = "x" -a "x$enable_prof_gcc" = "x1" \ -a "x$GCC" = "xyes" ; then backtrace_method="gcc intrinsics" AC_DEFINE([JEMALLOC_PROF_GCC], [ ]) else enable_prof_gcc="0" fi if test "x$backtrace_method" = "x" ; then backtrace_method="none (disabling profiling)" enable_prof="0" fi AC_MSG_CHECKING([configured backtracing method]) AC_MSG_RESULT([$backtrace_method]) if test "x$enable_prof" = "x1" ; then if test "x${force_tls}" = "x0" ; then AC_MSG_ERROR([Heap profiling requires TLS]); fi force_tls="1" AC_DEFINE([JEMALLOC_PROF], [ ]) fi AC_SUBST([enable_prof]) dnl Enable thread-specific caching by default. AC_ARG_ENABLE([tcache], [AS_HELP_STRING([--disable-tcache], [Disable per thread caches])], [if test "x$enable_tcache" = "xno" ; then enable_tcache="0" else enable_tcache="1" fi ], [enable_tcache="1"] ) if test "x$enable_tcache" = "x1" ; then AC_DEFINE([JEMALLOC_TCACHE], [ ]) fi AC_SUBST([enable_tcache]) dnl Disable mremap() for huge realloc() by default. AC_ARG_ENABLE([mremap], [AS_HELP_STRING([--enable-mremap], [Enable mremap(2) for huge realloc()])], [if test "x$enable_mremap" = "xno" ; then enable_mremap="0" else enable_mremap="1" fi ], [enable_mremap="0"] ) if test "x$enable_mremap" = "x1" ; then JE_COMPILABLE([mremap(...MREMAP_FIXED...)], [ #define _GNU_SOURCE #include ], [ void *p = mremap((void *)0, 0, 0, MREMAP_MAYMOVE|MREMAP_FIXED, (void *)0); ], [je_cv_mremap_fixed]) if test "x${je_cv_mremap_fixed}" = "xno" ; then enable_mremap="0" fi fi if test "x$enable_mremap" = "x1" ; then AC_DEFINE([JEMALLOC_MREMAP], [ ]) fi AC_SUBST([enable_mremap]) dnl Enable VM deallocation via munmap() by default. AC_ARG_ENABLE([munmap], [AS_HELP_STRING([--disable-munmap], [Disable VM deallocation via munmap(2)])], [if test "x$enable_munmap" = "xno" ; then enable_munmap="0" else enable_munmap="1" fi ], [enable_munmap="${default_munmap}"] ) if test "x$enable_munmap" = "x1" ; then AC_DEFINE([JEMALLOC_MUNMAP], [ ]) fi AC_SUBST([enable_munmap]) dnl Do not enable allocation from DSS by default. AC_ARG_ENABLE([dss], [AS_HELP_STRING([--enable-dss], [Enable allocation from DSS])], [if test "x$enable_dss" = "xno" ; then enable_dss="0" else enable_dss="1" fi ], [enable_dss="0"] ) dnl Check whether the BSD/SUSv1 sbrk() exists. If not, disable DSS support. AC_CHECK_FUNC([sbrk], [have_sbrk="1"], [have_sbrk="0"]) if test "x$have_sbrk" = "x1" ; then AC_DEFINE([JEMALLOC_HAVE_SBRK], [ ]) else enable_dss="0" fi if test "x$enable_dss" = "x1" ; then AC_DEFINE([JEMALLOC_DSS], [ ]) fi AC_SUBST([enable_dss]) dnl Support the junk/zero filling option by default. AC_ARG_ENABLE([fill], [AS_HELP_STRING([--disable-fill], [Disable support for junk/zero filling, quarantine, and redzones])], [if test "x$enable_fill" = "xno" ; then enable_fill="0" else enable_fill="1" fi ], [enable_fill="1"] ) if test "x$enable_fill" = "x1" ; then AC_DEFINE([JEMALLOC_FILL], [ ]) fi AC_SUBST([enable_fill]) dnl Disable utrace(2)-based tracing by default. AC_ARG_ENABLE([utrace], [AS_HELP_STRING([--enable-utrace], [Enable utrace(2)-based tracing])], [if test "x$enable_utrace" = "xno" ; then enable_utrace="0" else enable_utrace="1" fi ], [enable_utrace="0"] ) JE_COMPILABLE([utrace(2)], [ #include #include #include #include #include ], [ utrace((void *)0, 0); ], [je_cv_utrace]) if test "x${je_cv_utrace}" = "xno" ; then enable_utrace="0" fi if test "x$enable_utrace" = "x1" ; then AC_DEFINE([JEMALLOC_UTRACE], [ ]) fi AC_SUBST([enable_utrace]) dnl Support Valgrind by default. AC_ARG_ENABLE([valgrind], [AS_HELP_STRING([--disable-valgrind], [Disable support for Valgrind])], [if test "x$enable_valgrind" = "xno" ; then enable_valgrind="0" else enable_valgrind="1" fi ], [enable_valgrind="1"] ) if test "x$enable_valgrind" = "x1" ; then JE_COMPILABLE([valgrind], [ #include #include #if !defined(VALGRIND_RESIZEINPLACE_BLOCK) # error "Incompatible Valgrind version" #endif ], [], [je_cv_valgrind]) if test "x${je_cv_valgrind}" = "xno" ; then enable_valgrind="0" fi if test "x$enable_valgrind" = "x1" ; then AC_DEFINE([JEMALLOC_VALGRIND], [ ]) fi fi AC_SUBST([enable_valgrind]) dnl Do not support the xmalloc option by default. AC_ARG_ENABLE([xmalloc], [AS_HELP_STRING([--enable-xmalloc], [Support xmalloc option])], [if test "x$enable_xmalloc" = "xno" ; then enable_xmalloc="0" else enable_xmalloc="1" fi ], [enable_xmalloc="0"] ) if test "x$enable_xmalloc" = "x1" ; then AC_DEFINE([JEMALLOC_XMALLOC], [ ]) fi AC_SUBST([enable_xmalloc]) AC_CACHE_CHECK([STATIC_PAGE_SHIFT], [je_cv_static_page_shift], AC_RUN_IFELSE([AC_LANG_PROGRAM( [[ #include #ifdef _WIN32 #include #else #include #endif #include ]], [[ long result; FILE *f; #ifdef _WIN32 SYSTEM_INFO si; GetSystemInfo(&si); result = si.dwPageSize; #else result = sysconf(_SC_PAGESIZE); #endif if (result == -1) { return 1; } result = ffsl(result) - 1; f = fopen("conftest.out", "w"); if (f == NULL) { return 1; } fprintf(f, "%u\n", result); fclose(f); return 0; ]])], [je_cv_static_page_shift=`cat conftest.out`], [je_cv_static_page_shift=undefined])) if test "x$je_cv_static_page_shift" != "xundefined"; then AC_DEFINE_UNQUOTED([STATIC_PAGE_SHIFT], [$je_cv_static_page_shift]) else AC_MSG_ERROR([cannot determine value for STATIC_PAGE_SHIFT]) fi dnl ============================================================================ dnl jemalloc configuration. dnl dnl Set VERSION if source directory has an embedded git repository. if test -d "${srcroot}.git" ; then git describe --long --abbrev=40 > ${srcroot}VERSION fi jemalloc_version=`cat ${srcroot}VERSION` jemalloc_version_major=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]1}'` jemalloc_version_minor=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]2}'` jemalloc_version_bugfix=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]3}'` jemalloc_version_nrev=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]4}'` jemalloc_version_gid=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]5}'` AC_SUBST([jemalloc_version]) AC_SUBST([jemalloc_version_major]) AC_SUBST([jemalloc_version_minor]) AC_SUBST([jemalloc_version_bugfix]) AC_SUBST([jemalloc_version_nrev]) AC_SUBST([jemalloc_version_gid]) dnl ============================================================================ dnl Configure pthreads. if test "x$abi" != "xpecoff" ; then AC_CHECK_HEADERS([pthread.h], , [AC_MSG_ERROR([pthread.h is missing])]) dnl Some systems may embed pthreads functionality in libc; check for libpthread dnl first, but try libc too before failing. AC_CHECK_LIB([pthread], [pthread_create], [LIBS="$LIBS -lpthread"], [AC_SEARCH_LIBS([pthread_create], , , AC_MSG_ERROR([libpthread is missing]))]) fi CPPFLAGS="$CPPFLAGS -D_REENTRANT" dnl Check whether the BSD-specific _malloc_thread_cleanup() exists. If so, use dnl it rather than pthreads TSD cleanup functions to support cleanup during dnl thread exit, in order to avoid pthreads library recursion during dnl bootstrapping. AC_CHECK_FUNC([_malloc_thread_cleanup], [have__malloc_thread_cleanup="1"], [have__malloc_thread_cleanup="0"] ) if test "x$have__malloc_thread_cleanup" = "x1" ; then AC_DEFINE([JEMALLOC_MALLOC_THREAD_CLEANUP], [ ]) force_tls="1" fi dnl Check whether the BSD-specific _pthread_mutex_init_calloc_cb() exists. If dnl so, mutex initialization causes allocation, and we need to implement this dnl callback function in order to prevent recursive allocation. AC_CHECK_FUNC([_pthread_mutex_init_calloc_cb], [have__pthread_mutex_init_calloc_cb="1"], [have__pthread_mutex_init_calloc_cb="0"] ) if test "x$have__pthread_mutex_init_calloc_cb" = "x1" ; then AC_DEFINE([JEMALLOC_MUTEX_INIT_CB]) fi dnl Disable lazy locking by default. AC_ARG_ENABLE([lazy_lock], [AS_HELP_STRING([--enable-lazy-lock], [Enable lazy locking (only lock when multi-threaded)])], [if test "x$enable_lazy_lock" = "xno" ; then enable_lazy_lock="0" else enable_lazy_lock="1" fi ], [enable_lazy_lock="0"] ) if test "x$enable_lazy_lock" = "x0" -a "x${force_lazy_lock}" = "x1" ; then AC_MSG_RESULT([Forcing lazy-lock to avoid allocator/threading bootstrap issues]) enable_lazy_lock="1" fi if test "x$enable_lazy_lock" = "x1" ; then if test "x$abi" != "xpecoff" ; then AC_CHECK_HEADERS([dlfcn.h], , [AC_MSG_ERROR([dlfcn.h is missing])]) AC_CHECK_FUNC([dlsym], [], [AC_CHECK_LIB([dl], [dlsym], [LIBS="$LIBS -ldl"], [AC_MSG_ERROR([libdl is missing])]) ]) fi AC_DEFINE([JEMALLOC_LAZY_LOCK], [ ]) fi AC_SUBST([enable_lazy_lock]) AC_ARG_ENABLE([tls], [AS_HELP_STRING([--disable-tls], [Disable thread-local storage (__thread keyword)])], if test "x$enable_tls" = "xno" ; then enable_tls="0" else enable_tls="1" fi , enable_tls="1" ) if test "x${enable_tls}" = "x0" -a "x${force_tls}" = "x1" ; then AC_MSG_RESULT([Forcing TLS to avoid allocator/threading bootstrap issues]) enable_tls="1" fi if test "x${enable_tls}" = "x1" -a "x${force_tls}" = "x0" ; then AC_MSG_RESULT([Forcing no TLS to avoid allocator/threading bootstrap issues]) enable_tls="0" fi if test "x${enable_tls}" = "x1" ; then AC_MSG_CHECKING([for TLS]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM( [[ __thread int x; ]], [[ x = 42; return 0; ]])], AC_MSG_RESULT([yes]), AC_MSG_RESULT([no]) enable_tls="0") fi AC_SUBST([enable_tls]) if test "x${enable_tls}" = "x1" ; then AC_DEFINE_UNQUOTED([JEMALLOC_TLS], [ ]) elif test "x${force_tls}" = "x1" ; then AC_MSG_ERROR([Failed to configure TLS, which is mandatory for correct function]) fi dnl ============================================================================ dnl Check for ffsl(3), and fail if not found. This function exists on all dnl platforms that jemalloc currently has a chance of functioning on without dnl modification. JE_COMPILABLE([a program using ffsl], [ #include #include ], [ { int rv = ffsl(0x08); } ], [je_cv_function_ffsl]) if test "x${je_cv_function_ffsl}" != "xyes" ; then AC_MSG_ERROR([Cannot build without ffsl(3)]) fi dnl ============================================================================ dnl Check for atomic(9) operations as provided on FreeBSD. JE_COMPILABLE([atomic(9)], [ #include #include #include ], [ { uint32_t x32 = 0; volatile uint32_t *x32p = &x32; atomic_fetchadd_32(x32p, 1); } { unsigned long xlong = 0; volatile unsigned long *xlongp = &xlong; atomic_fetchadd_long(xlongp, 1); } ], [je_cv_atomic9]) if test "x${je_cv_atomic9}" = "xyes" ; then AC_DEFINE([JEMALLOC_ATOMIC9]) fi dnl ============================================================================ dnl Check for atomic(3) operations as provided on Darwin. JE_COMPILABLE([Darwin OSAtomic*()], [ #include #include ], [ { int32_t x32 = 0; volatile int32_t *x32p = &x32; OSAtomicAdd32(1, x32p); } { int64_t x64 = 0; volatile int64_t *x64p = &x64; OSAtomicAdd64(1, x64p); } ], [je_cv_osatomic]) if test "x${je_cv_osatomic}" = "xyes" ; then AC_DEFINE([JEMALLOC_OSATOMIC], [ ]) fi dnl ============================================================================ dnl Check whether __sync_{add,sub}_and_fetch() are available despite dnl __GCC_HAVE_SYNC_COMPARE_AND_SWAP_n macros being undefined. AC_DEFUN([JE_SYNC_COMPARE_AND_SWAP_CHECK],[ AC_CACHE_CHECK([whether to force $1-bit __sync_{add,sub}_and_fetch()], [je_cv_sync_compare_and_swap_$2], [AC_LINK_IFELSE([AC_LANG_PROGRAM([ #include ], [ #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_$2 { uint$1_t x$1 = 0; __sync_add_and_fetch(&x$1, 42); __sync_sub_and_fetch(&x$1, 1); } #else #error __GCC_HAVE_SYNC_COMPARE_AND_SWAP_$2 is defined, no need to force #endif ])], [je_cv_sync_compare_and_swap_$2=yes], [je_cv_sync_compare_and_swap_$2=no])]) if test "x${je_cv_sync_compare_and_swap_$2}" = "xyes" ; then AC_DEFINE([JE_FORCE_SYNC_COMPARE_AND_SWAP_$2], [ ]) fi ]) if test "x${je_cv_atomic9}" != "xyes" -a "x${je_cv_osatomic}" != "xyes" ; then JE_SYNC_COMPARE_AND_SWAP_CHECK(32, 4) JE_SYNC_COMPARE_AND_SWAP_CHECK(64, 8) fi dnl ============================================================================ dnl Check for spinlock(3) operations as provided on Darwin. JE_COMPILABLE([Darwin OSSpin*()], [ #include #include ], [ OSSpinLock lock = 0; OSSpinLockLock(&lock); OSSpinLockUnlock(&lock); ], [je_cv_osspin]) if test "x${je_cv_osspin}" = "xyes" ; then AC_DEFINE([JEMALLOC_OSSPIN], [ ]) fi dnl ============================================================================ dnl Darwin-related configuration. if test "x${abi}" = "xmacho" ; then AC_DEFINE([JEMALLOC_IVSALLOC], [ ]) AC_DEFINE([JEMALLOC_ZONE], [ ]) dnl The szone version jumped from 3 to 6 between the OS X 10.5.x and 10.6 dnl releases. malloc_zone_t and malloc_introspection_t have new fields in dnl 10.6, which is the only source-level indication of the change. AC_MSG_CHECKING([malloc zone version]) AC_DEFUN([JE_ZONE_PROGRAM], [AC_LANG_PROGRAM( [#include ], [static foo[[sizeof($1) $2 sizeof(void *) * $3 ? 1 : -1]]] )]) AC_COMPILE_IFELSE([JE_ZONE_PROGRAM(malloc_zone_t,==,14)],[JEMALLOC_ZONE_VERSION=3],[ AC_COMPILE_IFELSE([JE_ZONE_PROGRAM(malloc_zone_t,==,15)],[JEMALLOC_ZONE_VERSION=5],[ AC_COMPILE_IFELSE([JE_ZONE_PROGRAM(malloc_zone_t,==,16)],[ AC_COMPILE_IFELSE([JE_ZONE_PROGRAM(malloc_introspection_t,==,9)],[JEMALLOC_ZONE_VERSION=6],[ AC_COMPILE_IFELSE([JE_ZONE_PROGRAM(malloc_introspection_t,==,13)],[JEMALLOC_ZONE_VERSION=7],[JEMALLOC_ZONE_VERSION=] )])],[ AC_COMPILE_IFELSE([JE_ZONE_PROGRAM(malloc_zone_t,==,17)],[JEMALLOC_ZONE_VERSION=8],[ AC_COMPILE_IFELSE([JE_ZONE_PROGRAM(malloc_zone_t,>,17)],[JEMALLOC_ZONE_VERSION=9],[JEMALLOC_ZONE_VERSION=] )])])])]) if test "x${JEMALLOC_ZONE_VERSION}" = "x"; then AC_MSG_RESULT([unsupported]) AC_MSG_ERROR([Unsupported malloc zone version]) fi if test "${JEMALLOC_ZONE_VERSION}" = 9; then JEMALLOC_ZONE_VERSION=8 AC_MSG_RESULT([> 8]) else AC_MSG_RESULT([$JEMALLOC_ZONE_VERSION]) fi AC_DEFINE_UNQUOTED(JEMALLOC_ZONE_VERSION, [$JEMALLOC_ZONE_VERSION]) fi dnl ============================================================================ dnl Check for typedefs, structures, and compiler characteristics. AC_HEADER_STDBOOL AC_CONFIG_COMMANDS([include/jemalloc/internal/size_classes.h], [ mkdir -p "include/jemalloc/internal" "${srcdir}/include/jemalloc/internal/size_classes.sh" > "${objroot}include/jemalloc/internal/size_classes.h" ]) dnl Process .in files. AC_SUBST([cfghdrs_in]) AC_SUBST([cfghdrs_out]) AC_CONFIG_HEADERS([$cfghdrs_tup]) dnl ============================================================================ dnl Generate outputs. AC_CONFIG_FILES([$cfgoutputs_tup config.stamp bin/jemalloc.sh]) AC_SUBST([cfgoutputs_in]) AC_SUBST([cfgoutputs_out]) AC_OUTPUT dnl ============================================================================ dnl Print out the results of configuration. AC_MSG_RESULT([===============================================================================]) AC_MSG_RESULT([jemalloc version : ${jemalloc_version}]) AC_MSG_RESULT([library revision : ${rev}]) AC_MSG_RESULT([]) AC_MSG_RESULT([CC : ${CC}]) AC_MSG_RESULT([CPPFLAGS : ${CPPFLAGS}]) AC_MSG_RESULT([CFLAGS : ${CFLAGS}]) AC_MSG_RESULT([LDFLAGS : ${LDFLAGS}]) AC_MSG_RESULT([LIBS : ${LIBS}]) AC_MSG_RESULT([RPATH_EXTRA : ${RPATH_EXTRA}]) AC_MSG_RESULT([]) AC_MSG_RESULT([XSLTPROC : ${XSLTPROC}]) AC_MSG_RESULT([XSLROOT : ${XSLROOT}]) AC_MSG_RESULT([]) AC_MSG_RESULT([PREFIX : ${PREFIX}]) AC_MSG_RESULT([BINDIR : ${BINDIR}]) AC_MSG_RESULT([INCLUDEDIR : ${INCLUDEDIR}]) AC_MSG_RESULT([LIBDIR : ${LIBDIR}]) AC_MSG_RESULT([DATADIR : ${DATADIR}]) AC_MSG_RESULT([MANDIR : ${MANDIR}]) AC_MSG_RESULT([]) AC_MSG_RESULT([srcroot : ${srcroot}]) AC_MSG_RESULT([abs_srcroot : ${abs_srcroot}]) AC_MSG_RESULT([objroot : ${objroot}]) AC_MSG_RESULT([abs_objroot : ${abs_objroot}]) AC_MSG_RESULT([]) AC_MSG_RESULT([JEMALLOC_PREFIX : ${JEMALLOC_PREFIX}]) AC_MSG_RESULT([JEMALLOC_PRIVATE_NAMESPACE]) AC_MSG_RESULT([ : ${JEMALLOC_PRIVATE_NAMESPACE}]) AC_MSG_RESULT([install_suffix : ${install_suffix}]) AC_MSG_RESULT([autogen : ${enable_autogen}]) AC_MSG_RESULT([experimental : ${enable_experimental}]) AC_MSG_RESULT([cc-silence : ${enable_cc_silence}]) AC_MSG_RESULT([debug : ${enable_debug}]) AC_MSG_RESULT([stats : ${enable_stats}]) AC_MSG_RESULT([prof : ${enable_prof}]) AC_MSG_RESULT([prof-libunwind : ${enable_prof_libunwind}]) AC_MSG_RESULT([prof-libgcc : ${enable_prof_libgcc}]) AC_MSG_RESULT([prof-gcc : ${enable_prof_gcc}]) AC_MSG_RESULT([tcache : ${enable_tcache}]) AC_MSG_RESULT([fill : ${enable_fill}]) AC_MSG_RESULT([utrace : ${enable_utrace}]) AC_MSG_RESULT([valgrind : ${enable_valgrind}]) AC_MSG_RESULT([xmalloc : ${enable_xmalloc}]) AC_MSG_RESULT([mremap : ${enable_mremap}]) AC_MSG_RESULT([munmap : ${enable_munmap}]) AC_MSG_RESULT([dss : ${enable_dss}]) AC_MSG_RESULT([lazy_lock : ${enable_lazy_lock}]) AC_MSG_RESULT([tls : ${enable_tls}]) AC_MSG_RESULT([===============================================================================]) ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������redis-2.6.16/deps/jemalloc/doc/���������������������������������������������������������������������0000775�0000000�0000000�00000000000�12207342231�0016176�5����������������������������������������������������������������������������������������������������ustar�00root����������������������������root����������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������redis-2.6.16/deps/jemalloc/doc/html.xsl.in����������������������������������������������������������0000664�0000000�0000000�00000000313�12207342231�0020274�0����������������������������������������������������������������������������������������������������ustar�00root����������������������������root����������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������ ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������redis-2.6.16/deps/jemalloc/doc/jemalloc.3�����������������������������������������������������������0000664�0000000�0000000�00000141020�12207342231�0020046�0����������������������������������������������������������������������������������������������������ustar�00root����������������������������root����������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������'\" t .\" Title: JEMALLOC .\" Author: Jason Evans .\" Generator: DocBook XSL Stylesheets v1.76.1 .\" Date: 11/09/2012 .\" Manual: User Manual .\" Source: jemalloc 3.2.0-0-g87499f6748ebe4817571e817e9f680ccb5bf54a9 .\" Language: English .\" .TH "JEMALLOC" "3" "11/09/2012" "jemalloc 3.2.0-0-g87499f6748eb" "User Manual" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" jemalloc \- general purpose memory allocation functions .SH "LIBRARY" .PP This manual describes jemalloc 3\&.2\&.0\-0\-g87499f6748ebe4817571e817e9f680ccb5bf54a9\&. More information can be found at the \m[blue]\fBjemalloc website\fR\m[]\&\s-2\u[1]\d\s+2\&. .SH "SYNOPSIS" .sp .ft B .nf #include #include .fi .ft .SS "Standard API" .HP \w'void\ *malloc('u .BI "void *malloc(size_t\ " "size" ");" .HP \w'void\ *calloc('u .BI "void *calloc(size_t\ " "number" ", size_t\ " "size" ");" .HP \w'int\ posix_memalign('u .BI "int posix_memalign(void\ **" "ptr" ", size_t\ " "alignment" ", size_t\ " "size" ");" .HP \w'void\ *aligned_alloc('u .BI "void *aligned_alloc(size_t\ " "alignment" ", size_t\ " "size" ");" .HP \w'void\ *realloc('u .BI "void *realloc(void\ *" "ptr" ", size_t\ " "size" ");" .HP \w'void\ free('u .BI "void free(void\ *" "ptr" ");" .SS "Non\-standard API" .HP \w'size_t\ malloc_usable_size('u .BI "size_t malloc_usable_size(const\ void\ *" "ptr" ");" .HP \w'void\ malloc_stats_print('u .BI "void malloc_stats_print(void\ " "(*write_cb)" "\ (void\ *,\ const\ char\ *), void\ *" "cbopaque" ", const\ char\ *" "opts" ");" .HP \w'int\ mallctl('u .BI "int mallctl(const\ char\ *" "name" ", void\ *" "oldp" ", size_t\ *" "oldlenp" ", void\ *" "newp" ", size_t\ " "newlen" ");" .HP \w'int\ mallctlnametomib('u .BI "int mallctlnametomib(const\ char\ *" "name" ", size_t\ *" "mibp" ", size_t\ *" "miblenp" ");" .HP \w'int\ mallctlbymib('u .BI "int mallctlbymib(const\ size_t\ *" "mib" ", size_t\ " "miblen" ", void\ *" "oldp" ", size_t\ *" "oldlenp" ", void\ *" "newp" ", size_t\ " "newlen" ");" .HP \w'void\ (*malloc_message)('u .BI "void (*malloc_message)(void\ *" "cbopaque" ", const\ char\ *" "s" ");" .PP const char *\fImalloc_conf\fR; .SS "Experimental API" .HP \w'int\ allocm('u .BI "int allocm(void\ **" "ptr" ", size_t\ *" "rsize" ", size_t\ " "size" ", int\ " "flags" ");" .HP \w'int\ rallocm('u .BI "int rallocm(void\ **" "ptr" ", size_t\ *" "rsize" ", size_t\ " "size" ", size_t\ " "extra" ", int\ " "flags" ");" .HP \w'int\ sallocm('u .BI "int sallocm(const\ void\ *" "ptr" ", size_t\ *" "rsize" ", int\ " "flags" ");" .HP \w'int\ dallocm('u .BI "int dallocm(void\ *" "ptr" ", int\ " "flags" ");" .HP \w'int\ nallocm('u .BI "int nallocm(size_t\ *" "rsize" ", size_t\ " "size" ", int\ " "flags" ");" .SH "DESCRIPTION" .SS "Standard API" .PP The \fBmalloc\fR\fB\fR function allocates \fIsize\fR bytes of uninitialized memory\&. The allocated space is suitably aligned (after possible pointer coercion) for storage of any type of object\&. .PP The \fBcalloc\fR\fB\fR function allocates space for \fInumber\fR objects, each \fIsize\fR bytes in length\&. The result is identical to calling \fBmalloc\fR\fB\fR with an argument of \fInumber\fR * \fIsize\fR, with the exception that the allocated memory is explicitly initialized to zero bytes\&. .PP The \fBposix_memalign\fR\fB\fR function allocates \fIsize\fR bytes of memory such that the allocation\*(Aqs base address is an even multiple of \fIalignment\fR, and returns the allocation in the value pointed to by \fIptr\fR\&. The requested \fIalignment\fR must be a power of 2 at least as large as sizeof(\fBvoid *\fR)\&. .PP The \fBaligned_alloc\fR\fB\fR function allocates \fIsize\fR bytes of memory such that the allocation\*(Aqs base address is an even multiple of \fIalignment\fR\&. The requested \fIalignment\fR must be a power of 2\&. Behavior is undefined if \fIsize\fR is not an integral multiple of \fIalignment\fR\&. .PP The \fBrealloc\fR\fB\fR function changes the size of the previously allocated memory referenced by \fIptr\fR to \fIsize\fR bytes\&. The contents of the memory are unchanged up to the lesser of the new and old sizes\&. If the new size is larger, the contents of the newly allocated portion of the memory are undefined\&. Upon success, the memory referenced by \fIptr\fR is freed and a pointer to the newly allocated memory is returned\&. Note that \fBrealloc\fR\fB\fR may move the memory allocation, resulting in a different return value than \fIptr\fR\&. If \fIptr\fR is \fBNULL\fR, the \fBrealloc\fR\fB\fR function behaves identically to \fBmalloc\fR\fB\fR for the specified size\&. .PP The \fBfree\fR\fB\fR function causes the allocated memory referenced by \fIptr\fR to be made available for future allocations\&. If \fIptr\fR is \fBNULL\fR, no action occurs\&. .SS "Non\-standard API" .PP The \fBmalloc_usable_size\fR\fB\fR function returns the usable size of the allocation pointed to by \fIptr\fR\&. The return value may be larger than the size that was requested during allocation\&. The \fBmalloc_usable_size\fR\fB\fR function is not a mechanism for in\-place \fBrealloc\fR\fB\fR; rather it is provided solely as a tool for introspection purposes\&. Any discrepancy between the requested allocation size and the size reported by \fBmalloc_usable_size\fR\fB\fR should not be depended on, since such behavior is entirely implementation\-dependent\&. .PP The \fBmalloc_stats_print\fR\fB\fR function writes human\-readable summary statistics via the \fIwrite_cb\fR callback function pointer and \fIcbopaque\fR data passed to \fIwrite_cb\fR, or \fBmalloc_message\fR\fB\fR if \fIwrite_cb\fR is \fBNULL\fR\&. This function can be called repeatedly\&. General information that never changes during execution can be omitted by specifying "g" as a character within the \fIopts\fR string\&. Note that \fBmalloc_message\fR\fB\fR uses the \fBmallctl*\fR\fB\fR functions internally, so inconsistent statistics can be reported if multiple threads use these functions simultaneously\&. If \fB\-\-enable\-stats\fR is specified during configuration, \(lqm\(rq and \(lqa\(rq can be specified to omit merged arena and per arena statistics, respectively; \(lqb\(rq and \(lql\(rq can be specified to omit per size class statistics for bins and large objects, respectively\&. Unrecognized characters are silently ignored\&. Note that thread caching may prevent some statistics from being completely up to date, since extra locking would be required to merge counters that track thread cache operations\&. .PP The \fBmallctl\fR\fB\fR function provides a general interface for introspecting the memory allocator, as well as setting modifiable parameters and triggering actions\&. The period\-separated \fIname\fR argument specifies a location in a tree\-structured namespace; see the MALLCTL NAMESPACE section for documentation on the tree contents\&. To read a value, pass a pointer via \fIoldp\fR to adequate space to contain the value, and a pointer to its length via \fIoldlenp\fR; otherwise pass \fBNULL\fR and \fBNULL\fR\&. Similarly, to write a value, pass a pointer to the value via \fInewp\fR, and its length via \fInewlen\fR; otherwise pass \fBNULL\fR and \fB0\fR\&. .PP The \fBmallctlnametomib\fR\fB\fR function provides a way to avoid repeated name lookups for applications that repeatedly query the same portion of the namespace, by translating a name to a \(lqManagement Information Base\(rq (MIB) that can be passed repeatedly to \fBmallctlbymib\fR\fB\fR\&. Upon successful return from \fBmallctlnametomib\fR\fB\fR, \fImibp\fR contains an array of \fI*miblenp\fR integers, where \fI*miblenp\fR is the lesser of the number of components in \fIname\fR and the input value of \fI*miblenp\fR\&. Thus it is possible to pass a \fI*miblenp\fR that is smaller than the number of period\-separated name components, which results in a partial MIB that can be used as the basis for constructing a complete MIB\&. For name components that are integers (e\&.g\&. the 2 in "arenas\&.bin\&.2\&.size"), the corresponding MIB component will always be that integer\&. Therefore, it is legitimate to construct code like the following: .sp .if n \{\ .RS 4 .\} .nf unsigned nbins, i; int mib[4]; size_t len, miblen; len = sizeof(nbins); mallctl("arenas\&.nbins", &nbins, &len, NULL, 0); miblen = 4; mallnametomib("arenas\&.bin\&.0\&.size", mib, &miblen); for (i = 0; i < nbins; i++) { size_t bin_size; mib[2] = i; len = sizeof(bin_size); mallctlbymib(mib, miblen, &bin_size, &len, NULL, 0); /* Do something with bin_size\&.\&.\&. */ } .fi .if n \{\ .RE .\} .SS "Experimental API" .PP The experimental API is subject to change or removal without regard for backward compatibility\&. If \fB\-\-disable\-experimental\fR is specified during configuration, the experimental API is omitted\&. .PP The \fBallocm\fR\fB\fR, \fBrallocm\fR\fB\fR, \fBsallocm\fR\fB\fR, \fBdallocm\fR\fB\fR, and \fBnallocm\fR\fB\fR functions all have a \fIflags\fR argument that can be used to specify options\&. The functions only check the options that are contextually relevant\&. Use bitwise or (|) operations to specify one or more of the following: .PP \fBALLOCM_LG_ALIGN(\fR\fB\fIla\fR\fR\fB) \fR .RS 4 Align the memory allocation to start at an address that is a multiple of (1 << \fIla\fR)\&. This macro does not validate that \fIla\fR is within the valid range\&. .RE .PP \fBALLOCM_ALIGN(\fR\fB\fIa\fR\fR\fB) \fR .RS 4 Align the memory allocation to start at an address that is a multiple of \fIa\fR, where \fIa\fR is a power of two\&. This macro does not validate that \fIa\fR is a power of 2\&. .RE .PP \fBALLOCM_ZERO\fR .RS 4 Initialize newly allocated memory to contain zero bytes\&. In the growing reallocation case, the real size prior to reallocation defines the boundary between untouched bytes and those that are initialized to contain zero bytes\&. If this option is absent, newly allocated memory is uninitialized\&. .RE .PP \fBALLOCM_NO_MOVE\fR .RS 4 For reallocation, fail rather than moving the object\&. This constraint can apply to both growth and shrinkage\&. .RE .PP \fBALLOCM_ARENA(\fR\fB\fIa\fR\fR\fB) \fR .RS 4 Use the arena specified by the index \fIa\fR\&. This macro does not validate that \fIa\fR specifies an arena in the valid range\&. .RE .PP The \fBallocm\fR\fB\fR function allocates at least \fIsize\fR bytes of memory, sets \fI*ptr\fR to the base address of the allocation, and sets \fI*rsize\fR to the real size of the allocation if \fIrsize\fR is not \fBNULL\fR\&. Behavior is undefined if \fIsize\fR is \fB0\fR\&. .PP The \fBrallocm\fR\fB\fR function resizes the allocation at \fI*ptr\fR to be at least \fIsize\fR bytes, sets \fI*ptr\fR to the base address of the allocation if it moved, and sets \fI*rsize\fR to the real size of the allocation if \fIrsize\fR is not \fBNULL\fR\&. If \fIextra\fR is non\-zero, an attempt is made to resize the allocation to be at least \fIsize\fR + \fIextra\fR) bytes, though inability to allocate the extra byte(s) will not by itself result in failure\&. Behavior is undefined if \fIsize\fR is \fB0\fR, or if (\fIsize\fR + \fIextra\fR > \fBSIZE_T_MAX\fR)\&. .PP The \fBsallocm\fR\fB\fR function sets \fI*rsize\fR to the real size of the allocation\&. .PP The \fBdallocm\fR\fB\fR function causes the memory referenced by \fIptr\fR to be made available for future allocations\&. .PP The \fBnallocm\fR\fB\fR function allocates no memory, but it performs the same size computation as the \fBallocm\fR\fB\fR function, and if \fIrsize\fR is not \fBNULL\fR it sets \fI*rsize\fR to the real size of the allocation that would result from the equivalent \fBallocm\fR\fB\fR function call\&. Behavior is undefined if \fIsize\fR is \fB0\fR\&. .SH "TUNING" .PP Once, when the first call is made to one of the memory allocation routines, the allocator initializes its internals based in part on various options that can be specified at compile\- or run\-time\&. .PP The string pointed to by the global variable \fImalloc_conf\fR, the \(lqname\(rq of the file referenced by the symbolic link named /etc/malloc\&.conf, and the value of the environment variable \fBMALLOC_CONF\fR, will be interpreted, in that order, from left to right as options\&. .PP An options string is a comma\-separated list of option:value pairs\&. There is one key corresponding to each "opt\&.*" mallctl (see the MALLCTL NAMESPACE section for options documentation)\&. For example, abort:true,narenas:1 sets the "opt\&.abort" and "opt\&.narenas" options\&. Some options have boolean values (true/false), others have integer values (base 8, 10, or 16, depending on prefix), and yet others have raw string values\&. .SH "IMPLEMENTATION NOTES" .PP Traditionally, allocators have used \fBsbrk\fR(2) to obtain memory, which is suboptimal for several reasons, including race conditions, increased fragmentation, and artificial limitations on maximum usable memory\&. If \fB\-\-enable\-dss\fR is specified during configuration, this allocator uses both \fBmmap\fR(2) and \fBsbrk\fR(2), in that order of preference; otherwise only \fBmmap\fR(2) is used\&. .PP This allocator uses multiple arenas in order to reduce lock contention for threaded programs on multi\-processor systems\&. This works well with regard to threading scalability, but incurs some costs\&. There is a small fixed per\-arena overhead, and additionally, arenas manage memory completely independently of each other, which means a small fixed increase in overall memory fragmentation\&. These overheads are not generally an issue, given the number of arenas normally used\&. Note that using substantially more arenas than the default is not likely to improve performance, mainly due to reduced cache performance\&. However, it may make sense to reduce the number of arenas if an application does not make much use of the allocation functions\&. .PP In addition to multiple arenas, unless \fB\-\-disable\-tcache\fR is specified during configuration, this allocator supports thread\-specific caching for small and large objects, in order to make it possible to completely avoid synchronization for most allocation requests\&. Such caching allows very fast allocation in the common case, but it increases memory usage and fragmentation, since a bounded number of objects can remain allocated in each thread cache\&. .PP Memory is conceptually broken into equal\-sized chunks, where the chunk size is a power of two that is greater than the page size\&. Chunks are always aligned to multiples of the chunk size\&. This alignment makes it possible to find metadata for user objects very quickly\&. .PP User objects are broken into three categories according to size: small, large, and huge\&. Small objects are smaller than one page\&. Large objects are smaller than the chunk size\&. Huge objects are a multiple of the chunk size\&. Small and large objects are managed by arenas; huge objects are managed separately in a single data structure that is shared by all threads\&. Huge objects are used by applications infrequently enough that this single data structure is not a scalability issue\&. .PP Each chunk that is managed by an arena tracks its contents as runs of contiguous pages (unused, backing a set of small objects, or backing one large object)\&. The combination of chunk alignment and chunk page maps makes it possible to determine all metadata regarding small and large allocations in constant time\&. .PP Small objects are managed in groups by page runs\&. Each run maintains a frontier and free list to track which regions are in use\&. Allocation requests that are no more than half the quantum (8 or 16, depending on architecture) are rounded up to the nearest power of two that is at least sizeof(\fBdouble\fR)\&. All other small object size classes are multiples of the quantum, spaced such that internal fragmentation is limited to approximately 25% for all but the smallest size classes\&. Allocation requests that are larger than the maximum small size class, but small enough to fit in an arena\-managed chunk (see the "opt\&.lg_chunk" option), are rounded up to the nearest run size\&. Allocation requests that are too large to fit in an arena\-managed chunk are rounded up to the nearest multiple of the chunk size\&. .PP Allocations are packed tightly together, which can be an issue for multi\-threaded applications\&. If you need to assure that allocations do not suffer from cacheline sharing, round your allocation requests up to the nearest multiple of the cacheline size, or specify cacheline alignment when allocating\&. .PP Assuming 4 MiB chunks, 4 KiB pages, and a 16\-byte quantum on a 64\-bit system, the size classes in each category are as shown in Table 1\&. .sp .it 1 an-trap .nr an-no-space-flag 1 .nr an-break-flag 1 .br .B Table\ \&1.\ \&Size classes .TS allbox tab(:); lB rB lB. T{ Category T}:T{ Spacing T}:T{ Size T} .T& l r l ^ r l ^ r l ^ r l ^ r l ^ r l ^ r l l r l l r l. T{ Small T}:T{ lg T}:T{ [8] T} :T{ 16 T}:T{ [16, 32, 48, \&.\&.\&., 128] T} :T{ 32 T}:T{ [160, 192, 224, 256] T} :T{ 64 T}:T{ [320, 384, 448, 512] T} :T{ 128 T}:T{ [640, 768, 896, 1024] T} :T{ 256 T}:T{ [1280, 1536, 1792, 2048] T} :T{ 512 T}:T{ [2560, 3072, 3584] T} T{ Large T}:T{ 4 KiB T}:T{ [4 KiB, 8 KiB, 12 KiB, \&.\&.\&., 4072 KiB] T} T{ Huge T}:T{ 4 MiB T}:T{ [4 MiB, 8 MiB, 12 MiB, \&.\&.\&.] T} .TE .sp 1 .SH "MALLCTL NAMESPACE" .PP The following names are defined in the namespace accessible via the \fBmallctl*\fR\fB\fR functions\&. Value types are specified in parentheses, their readable/writable statuses are encoded as rw, r\-, \-w, or \-\-, and required build configuration flags follow, if any\&. A name element encoded as or indicates an integer component, where the integer varies from 0 to some upper value that must be determined via introspection\&. In the case of "stats\&.arenas\&.\&.*", equal to "arenas\&.narenas" can be used to access the summation of statistics from all arenas\&. Take special note of the "epoch" mallctl, which controls refreshing of cached dynamic statistics\&. .PP "version" (\fBconst char *\fR) r\- .RS 4 Return the jemalloc version string\&. .RE .PP "epoch" (\fBuint64_t\fR) rw .RS 4 If a value is passed in, refresh the data from which the \fBmallctl*\fR\fB\fR functions report values, and increment the epoch\&. Return the current epoch\&. This is useful for detecting whether another thread caused a refresh\&. .RE .PP "config\&.debug" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-debug\fR was specified during build configuration\&. .RE .PP "config\&.dss" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-dss\fR was specified during build configuration\&. .RE .PP "config\&.fill" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-fill\fR was specified during build configuration\&. .RE .PP "config\&.lazy_lock" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-lazy\-lock\fR was specified during build configuration\&. .RE .PP "config\&.mremap" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-mremap\fR was specified during build configuration\&. .RE .PP "config\&.munmap" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-munmap\fR was specified during build configuration\&. .RE .PP "config\&.prof" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-prof\fR was specified during build configuration\&. .RE .PP "config\&.prof_libgcc" (\fBbool\fR) r\- .RS 4 \fB\-\-disable\-prof\-libgcc\fR was not specified during build configuration\&. .RE .PP "config\&.prof_libunwind" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-prof\-libunwind\fR was specified during build configuration\&. .RE .PP "config\&.stats" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-stats\fR was specified during build configuration\&. .RE .PP "config\&.tcache" (\fBbool\fR) r\- .RS 4 \fB\-\-disable\-tcache\fR was not specified during build configuration\&. .RE .PP "config\&.tls" (\fBbool\fR) r\- .RS 4 \fB\-\-disable\-tls\fR was not specified during build configuration\&. .RE .PP "config\&.utrace" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-utrace\fR was specified during build configuration\&. .RE .PP "config\&.valgrind" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-valgrind\fR was specified during build configuration\&. .RE .PP "config\&.xmalloc" (\fBbool\fR) r\- .RS 4 \fB\-\-enable\-xmalloc\fR was specified during build configuration\&. .RE .PP "opt\&.abort" (\fBbool\fR) r\- .RS 4 Abort\-on\-warning enabled/disabled\&. If true, most warnings are fatal\&. The process will call \fBabort\fR(3) in these cases\&. This option is disabled by default unless \fB\-\-enable\-debug\fR is specified during configuration, in which case it is enabled by default\&. .RE .PP "opt\&.lg_chunk" (\fBsize_t\fR) r\- .RS 4 Virtual memory chunk size (log base 2)\&. The default chunk size is 4 MiB (2^22)\&. .RE .PP "opt\&.dss" (\fBconst char *\fR) r\- .RS 4 dss (\fBsbrk\fR(2)) allocation precedence as related to \fBmmap\fR(2) allocation\&. The following settings are supported: \(lqdisabled\(rq, \(lqprimary\(rq, and \(lqsecondary\(rq (default)\&. .RE .PP "opt\&.narenas" (\fBsize_t\fR) r\- .RS 4 Maximum number of arenas to use for automatic multiplexing of threads and arenas\&. The default is four times the number of CPUs, or one if there is a single CPU\&. .RE .PP "opt\&.lg_dirty_mult" (\fBssize_t\fR) r\- .RS 4 Per\-arena minimum ratio (log base 2) of active to dirty pages\&. Some dirty unused pages may be allowed to accumulate, within the limit set by the ratio (or one chunk worth of dirty pages, whichever is greater), before informing the kernel about some of those pages via \fBmadvise\fR(2) or a similar system call\&. This provides the kernel with sufficient information to recycle dirty pages if physical memory becomes scarce and the pages remain unused\&. The default minimum ratio is 8:1 (2^3:1); an option value of \-1 will disable dirty page purging\&. .RE .PP "opt\&.stats_print" (\fBbool\fR) r\- .RS 4 Enable/disable statistics printing at exit\&. If enabled, the \fBmalloc_stats_print\fR\fB\fR function is called at program exit via an \fBatexit\fR(3) function\&. If \fB\-\-enable\-stats\fR is specified during configuration, this has the potential to cause deadlock for a multi\-threaded process that exits while one or more threads are executing in the memory allocation functions\&. Therefore, this option should only be used with care; it is primarily intended as a performance tuning aid during application development\&. This option is disabled by default\&. .RE .PP "opt\&.junk" (\fBbool\fR) r\- [\fB\-\-enable\-fill\fR] .RS 4 Junk filling enabled/disabled\&. If enabled, each byte of uninitialized allocated memory will be initialized to 0xa5\&. All deallocated memory will be initialized to 0x5a\&. This is intended for debugging and will impact performance negatively\&. This option is disabled by default unless \fB\-\-enable\-debug\fR is specified during configuration, in which case it is enabled by default unless running inside \m[blue]\fBValgrind\fR\m[]\&\s-2\u[2]\d\s+2\&. .RE .PP "opt\&.quarantine" (\fBsize_t\fR) r\- [\fB\-\-enable\-fill\fR] .RS 4 Per thread quarantine size in bytes\&. If non\-zero, each thread maintains a FIFO object quarantine that stores up to the specified number of bytes of memory\&. The quarantined memory is not freed until it is released from quarantine, though it is immediately junk\-filled if the "opt\&.junk" option is enabled\&. This feature is of particular use in combination with \m[blue]\fBValgrind\fR\m[]\&\s-2\u[2]\d\s+2, which can detect attempts to access quarantined objects\&. This is intended for debugging and will impact performance negatively\&. The default quarantine size is 0 unless running inside Valgrind, in which case the default is 16 MiB\&. .RE .PP "opt\&.redzone" (\fBbool\fR) r\- [\fB\-\-enable\-fill\fR] .RS 4 Redzones enabled/disabled\&. If enabled, small allocations have redzones before and after them\&. Furthermore, if the "opt\&.junk" option is enabled, the redzones are checked for corruption during deallocation\&. However, the primary intended purpose of this feature is to be used in combination with \m[blue]\fBValgrind\fR\m[]\&\s-2\u[2]\d\s+2, which needs redzones in order to do effective buffer overflow/underflow detection\&. This option is intended for debugging and will impact performance negatively\&. This option is disabled by default unless running inside Valgrind\&. .RE .PP "opt\&.zero" (\fBbool\fR) r\- [\fB\-\-enable\-fill\fR] .RS 4 Zero filling enabled/disabled\&. If enabled, each byte of uninitialized allocated memory will be initialized to 0\&. Note that this initialization only happens once for each byte, so \fBrealloc\fR\fB\fR and \fBrallocm\fR\fB\fR calls do not zero memory that was previously allocated\&. This is intended for debugging and will impact performance negatively\&. This option is disabled by default\&. .RE .PP "opt\&.utrace" (\fBbool\fR) r\- [\fB\-\-enable\-utrace\fR] .RS 4 Allocation tracing based on \fButrace\fR(2) enabled/disabled\&. This option is disabled by default\&. .RE .PP "opt\&.valgrind" (\fBbool\fR) r\- [\fB\-\-enable\-valgrind\fR] .RS 4 \m[blue]\fBValgrind\fR\m[]\&\s-2\u[2]\d\s+2 support enabled/disabled\&. This option is vestigal because jemalloc auto\-detects whether it is running inside Valgrind\&. This option is disabled by default, unless running inside Valgrind\&. .RE .PP "opt\&.xmalloc" (\fBbool\fR) r\- [\fB\-\-enable\-xmalloc\fR] .RS 4 Abort\-on\-out\-of\-memory enabled/disabled\&. If enabled, rather than returning failure for any allocation function, display a diagnostic message on \fBSTDERR_FILENO\fR and cause the program to drop core (using \fBabort\fR(3))\&. If an application is designed to depend on this behavior, set the option at compile time by including the following in the source code: .sp .if n \{\ .RS 4 .\} .nf malloc_conf = "xmalloc:true"; .fi .if n \{\ .RE .\} .sp This option is disabled by default\&. .RE .PP "opt\&.tcache" (\fBbool\fR) r\- [\fB\-\-enable\-tcache\fR] .RS 4 Thread\-specific caching enabled/disabled\&. When there are multiple threads, each thread uses a thread\-specific cache for objects up to a certain size\&. Thread\-specific caching allows many allocations to be satisfied without performing any thread synchronization, at the cost of increased memory use\&. See the "opt\&.lg_tcache_max" option for related tuning information\&. This option is enabled by default unless running inside \m[blue]\fBValgrind\fR\m[]\&\s-2\u[2]\d\s+2\&. .RE .PP "opt\&.lg_tcache_max" (\fBsize_t\fR) r\- [\fB\-\-enable\-tcache\fR] .RS 4 Maximum size class (log base 2) to cache in the thread\-specific cache\&. At a minimum, all small size classes are cached, and at a maximum all large size classes are cached\&. The default maximum is 32 KiB (2^15)\&. .RE .PP "opt\&.prof" (\fBbool\fR) r\- [\fB\-\-enable\-prof\fR] .RS 4 Memory profiling enabled/disabled\&. If enabled, profile memory allocation activity\&. See the "opt\&.prof_active" option for on\-the\-fly activation/deactivation\&. See the "opt\&.lg_prof_sample" option for probabilistic sampling control\&. See the "opt\&.prof_accum" option for control of cumulative sample reporting\&. See the "opt\&.lg_prof_interval" option for information on interval\-triggered profile dumping, the "opt\&.prof_gdump" option for information on high\-water\-triggered profile dumping, and the "opt\&.prof_final" option for final profile dumping\&. Profile output is compatible with the included \fBpprof\fR Perl script, which originates from the \m[blue]\fBgperftools package\fR\m[]\&\s-2\u[3]\d\s+2\&. .RE .PP "opt\&.prof_prefix" (\fBconst char *\fR) r\- [\fB\-\-enable\-prof\fR] .RS 4 Filename prefix for profile dumps\&. If the prefix is set to the empty string, no automatic dumps will occur; this is primarily useful for disabling the automatic final heap dump (which also disables leak reporting, if enabled)\&. The default prefix is jeprof\&. .RE .PP "opt\&.prof_active" (\fBbool\fR) r\- [\fB\-\-enable\-prof\fR] .RS 4 Profiling activated/deactivated\&. This is a secondary control mechanism that makes it possible to start the application with profiling enabled (see the "opt\&.prof" option) but inactive, then toggle profiling at any time during program execution with the "prof\&.active" mallctl\&. This option is enabled by default\&. .RE .PP "opt\&.lg_prof_sample" (\fBssize_t\fR) r\- [\fB\-\-enable\-prof\fR] .RS 4 Average interval (log base 2) between allocation samples, as measured in bytes of allocation activity\&. Increasing the sampling interval decreases profile fidelity, but also decreases the computational overhead\&. The default sample interval is 512 KiB (2^19 B)\&. .RE .PP "opt\&.prof_accum" (\fBbool\fR) r\- [\fB\-\-enable\-prof\fR] .RS 4 Reporting of cumulative object/byte counts in profile dumps enabled/disabled\&. If this option is enabled, every unique backtrace must be stored for the duration of execution\&. Depending on the application, this can impose a large memory overhead, and the cumulative counts are not always of interest\&. This option is disabled by default\&. .RE .PP "opt\&.lg_prof_interval" (\fBssize_t\fR) r\- [\fB\-\-enable\-prof\fR] .RS 4 Average interval (log base 2) between memory profile dumps, as measured in bytes of allocation activity\&. The actual interval between dumps may be sporadic because decentralized allocation counters are used to avoid synchronization bottlenecks\&. Profiles are dumped to files named according to the pattern \&.\&.\&.i\&.heap, where is controlled by the "opt\&.prof_prefix" option\&. By default, interval\-triggered profile dumping is disabled (encoded as \-1)\&. .RE .PP "opt\&.prof_gdump" (\fBbool\fR) r\- [\fB\-\-enable\-prof\fR] .RS 4 Trigger a memory profile dump every time the total virtual memory exceeds the previous maximum\&. Profiles are dumped to files named according to the pattern \&.\&.\&.u\&.heap, where is controlled by the "opt\&.prof_prefix" option\&. This option is disabled by default\&. .RE .PP "opt\&.prof_final" (\fBbool\fR) r\- [\fB\-\-enable\-prof\fR] .RS 4 Use an \fBatexit\fR(3) function to dump final memory usage to a file named according to the pattern \&.\&.\&.f\&.heap, where is controlled by the "opt\&.prof_prefix" option\&. This option is enabled by default\&. .RE .PP "opt\&.prof_leak" (\fBbool\fR) r\- [\fB\-\-enable\-prof\fR] .RS 4 Leak reporting enabled/disabled\&. If enabled, use an \fBatexit\fR(3) function to report memory leaks detected by allocation sampling\&. See the "opt\&.prof" option for information on analyzing heap profile output\&. This option is disabled by default\&. .RE .PP "thread\&.arena" (\fBunsigned\fR) rw .RS 4 Get or set the arena associated with the calling thread\&. If the specified arena was not initialized beforehand (see the "arenas\&.initialized" mallctl), it will be automatically initialized as a side effect of calling this interface\&. .RE .PP "thread\&.allocated" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Get the total number of bytes ever allocated by the calling thread\&. This counter has the potential to wrap around; it is up to the application to appropriately interpret the counter in such cases\&. .RE .PP "thread\&.allocatedp" (\fBuint64_t *\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Get a pointer to the the value that is returned by the "thread\&.allocated" mallctl\&. This is useful for avoiding the overhead of repeated \fBmallctl*\fR\fB\fR calls\&. .RE .PP "thread\&.deallocated" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Get the total number of bytes ever deallocated by the calling thread\&. This counter has the potential to wrap around; it is up to the application to appropriately interpret the counter in such cases\&. .RE .PP "thread\&.deallocatedp" (\fBuint64_t *\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Get a pointer to the the value that is returned by the "thread\&.deallocated" mallctl\&. This is useful for avoiding the overhead of repeated \fBmallctl*\fR\fB\fR calls\&. .RE .PP "thread\&.tcache\&.enabled" (\fBbool\fR) rw [\fB\-\-enable\-tcache\fR] .RS 4 Enable/disable calling thread\*(Aqs tcache\&. The tcache is implicitly flushed as a side effect of becoming disabled (see "thread\&.tcache\&.flush")\&. .RE .PP "thread\&.tcache\&.flush" (\fBvoid\fR) \-\- [\fB\-\-enable\-tcache\fR] .RS 4 Flush calling thread\*(Aqs tcache\&. This interface releases all cached objects and internal data structures associated with the calling thread\*(Aqs thread\-specific cache\&. Ordinarily, this interface need not be called, since automatic periodic incremental garbage collection occurs, and the thread cache is automatically discarded when a thread exits\&. However, garbage collection is triggered by allocation activity, so it is possible for a thread that stops allocating/deallocating to retain its cache indefinitely, in which case the developer may find manual flushing useful\&. .RE .PP "arena\&.\&.purge" (\fBunsigned\fR) \-\- .RS 4 Purge unused dirty pages for arena , or for all arenas if equals "arenas\&.narenas"\&. .RE .PP "arena\&.\&.dss" (\fBconst char *\fR) rw .RS 4 Set the precedence of dss allocation as related to mmap allocation for arena , or for all arenas if equals "arenas\&.narenas"\&. See "opt\&.dss" for supported settings\&. .RE .PP "arenas\&.narenas" (\fBunsigned\fR) r\- .RS 4 Current limit on number of arenas\&. .RE .PP "arenas\&.initialized" (\fBbool *\fR) r\- .RS 4 An array of "arenas\&.narenas" booleans\&. Each boolean indicates whether the corresponding arena is initialized\&. .RE .PP "arenas\&.quantum" (\fBsize_t\fR) r\- .RS 4 Quantum size\&. .RE .PP "arenas\&.page" (\fBsize_t\fR) r\- .RS 4 Page size\&. .RE .PP "arenas\&.tcache_max" (\fBsize_t\fR) r\- [\fB\-\-enable\-tcache\fR] .RS 4 Maximum thread\-cached size class\&. .RE .PP "arenas\&.nbins" (\fBunsigned\fR) r\- .RS 4 Number of bin size classes\&. .RE .PP "arenas\&.nhbins" (\fBunsigned\fR) r\- [\fB\-\-enable\-tcache\fR] .RS 4 Total number of thread cache bin size classes\&. .RE .PP "arenas\&.bin\&.\&.size" (\fBsize_t\fR) r\- .RS 4 Maximum size supported by size class\&. .RE .PP "arenas\&.bin\&.\&.nregs" (\fBuint32_t\fR) r\- .RS 4 Number of regions per page run\&. .RE .PP "arenas\&.bin\&.\&.run_size" (\fBsize_t\fR) r\- .RS 4 Number of bytes per page run\&. .RE .PP "arenas\&.nlruns" (\fBsize_t\fR) r\- .RS 4 Total number of large size classes\&. .RE .PP "arenas\&.lrun\&.\&.size" (\fBsize_t\fR) r\- .RS 4 Maximum size supported by this large size class\&. .RE .PP "arenas\&.purge" (\fBunsigned\fR) \-w .RS 4 Purge unused dirty pages for the specified arena, or for all arenas if none is specified\&. .RE .PP "arenas\&.extend" (\fBunsigned\fR) r\- .RS 4 Extend the array of arenas by appending a new arena, and returning the new arena index\&. .RE .PP "prof\&.active" (\fBbool\fR) rw [\fB\-\-enable\-prof\fR] .RS 4 Control whether sampling is currently active\&. See the "opt\&.prof_active" option for additional information\&. .RE .PP "prof\&.dump" (\fBconst char *\fR) \-w [\fB\-\-enable\-prof\fR] .RS 4 Dump a memory profile to the specified file, or if NULL is specified, to a file according to the pattern \&.\&.\&.m\&.heap, where is controlled by the "opt\&.prof_prefix" option\&. .RE .PP "prof\&.interval" (\fBuint64_t\fR) r\- [\fB\-\-enable\-prof\fR] .RS 4 Average number of bytes allocated between inverval\-based profile dumps\&. See the "opt\&.lg_prof_interval" option for additional information\&. .RE .PP "stats\&.cactive" (\fBsize_t *\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Pointer to a counter that contains an approximate count of the current number of bytes in active pages\&. The estimate may be high, but never low, because each arena rounds up to the nearest multiple of the chunk size when computing its contribution to the counter\&. Note that the "epoch" mallctl has no bearing on this counter\&. Furthermore, counter consistency is maintained via atomic operations, so it is necessary to use an atomic operation in order to guarantee a consistent read when dereferencing the pointer\&. .RE .PP "stats\&.allocated" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Total number of bytes allocated by the application\&. .RE .PP "stats\&.active" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Total number of bytes in active pages allocated by the application\&. This is a multiple of the page size, and greater than or equal to "stats\&.allocated"\&. This does not include "stats\&.arenas\&.\&.pdirty" and pages entirely devoted to allocator metadata\&. .RE .PP "stats\&.mapped" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Total number of bytes in chunks mapped on behalf of the application\&. This is a multiple of the chunk size, and is at least as large as "stats\&.active"\&. This does not include inactive chunks\&. .RE .PP "stats\&.chunks\&.current" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Total number of chunks actively mapped on behalf of the application\&. This does not include inactive chunks\&. .RE .PP "stats\&.chunks\&.total" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of chunks allocated\&. .RE .PP "stats\&.chunks\&.high" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Maximum number of active chunks at any time thus far\&. .RE .PP "stats\&.huge\&.allocated" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Number of bytes currently allocated by huge objects\&. .RE .PP "stats\&.huge\&.nmalloc" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of huge allocation requests\&. .RE .PP "stats\&.huge\&.ndalloc" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of huge deallocation requests\&. .RE .PP "stats\&.arenas\&.\&.dss" (\fBconst char *\fR) r\- .RS 4 dss (\fBsbrk\fR(2)) allocation precedence as related to \fBmmap\fR(2) allocation\&. See "opt\&.dss" for details\&. .RE .PP "stats\&.arenas\&.\&.nthreads" (\fBunsigned\fR) r\- .RS 4 Number of threads currently assigned to arena\&. .RE .PP "stats\&.arenas\&.\&.pactive" (\fBsize_t\fR) r\- .RS 4 Number of pages in active runs\&. .RE .PP "stats\&.arenas\&.\&.pdirty" (\fBsize_t\fR) r\- .RS 4 Number of pages within unused runs that are potentially dirty, and for which \fBmadvise\fR\fB\fI\&.\&.\&.\fR\fR\fB \fR\fB\fI\fBMADV_DONTNEED\fR\fR\fR or similar has not been called\&. .RE .PP "stats\&.arenas\&.\&.mapped" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Number of mapped bytes\&. .RE .PP "stats\&.arenas\&.\&.npurge" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Number of dirty page purge sweeps performed\&. .RE .PP "stats\&.arenas\&.\&.nmadvise" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Number of \fBmadvise\fR\fB\fI\&.\&.\&.\fR\fR\fB \fR\fB\fI\fBMADV_DONTNEED\fR\fR\fR or similar calls made to purge dirty pages\&. .RE .PP "stats\&.arenas\&.\&.npurged" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Number of pages purged\&. .RE .PP "stats\&.arenas\&.\&.small\&.allocated" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Number of bytes currently allocated by small objects\&. .RE .PP "stats\&.arenas\&.\&.small\&.nmalloc" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of allocation requests served by small bins\&. .RE .PP "stats\&.arenas\&.\&.small\&.ndalloc" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of small objects returned to bins\&. .RE .PP "stats\&.arenas\&.\&.small\&.nrequests" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of small allocation requests\&. .RE .PP "stats\&.arenas\&.\&.large\&.allocated" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Number of bytes currently allocated by large objects\&. .RE .PP "stats\&.arenas\&.\&.large\&.nmalloc" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of large allocation requests served directly by the arena\&. .RE .PP "stats\&.arenas\&.\&.large\&.ndalloc" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of large deallocation requests served directly by the arena\&. .RE .PP "stats\&.arenas\&.\&.large\&.nrequests" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of large allocation requests\&. .RE .PP "stats\&.arenas\&.\&.bins\&.\&.allocated" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Current number of bytes allocated by bin\&. .RE .PP "stats\&.arenas\&.\&.bins\&.\&.nmalloc" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of allocations served by bin\&. .RE .PP "stats\&.arenas\&.\&.bins\&.\&.ndalloc" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of allocations returned to bin\&. .RE .PP "stats\&.arenas\&.\&.bins\&.\&.nrequests" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of allocation requests\&. .RE .PP "stats\&.arenas\&.\&.bins\&.\&.nfills" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR \fB\-\-enable\-tcache\fR] .RS 4 Cumulative number of tcache fills\&. .RE .PP "stats\&.arenas\&.\&.bins\&.\&.nflushes" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR \fB\-\-enable\-tcache\fR] .RS 4 Cumulative number of tcache flushes\&. .RE .PP "stats\&.arenas\&.\&.bins\&.\&.nruns" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of runs created\&. .RE .PP "stats\&.arenas\&.\&.bins\&.\&.nreruns" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of times the current run from which to allocate changed\&. .RE .PP "stats\&.arenas\&.\&.bins\&.\&.curruns" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Current number of runs\&. .RE .PP "stats\&.arenas\&.\&.lruns\&.\&.nmalloc" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of allocation requests for this size class served directly by the arena\&. .RE .PP "stats\&.arenas\&.\&.lruns\&.\&.ndalloc" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of deallocation requests for this size class served directly by the arena\&. .RE .PP "stats\&.arenas\&.\&.lruns\&.\&.nrequests" (\fBuint64_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Cumulative number of allocation requests for this size class\&. .RE .PP "stats\&.arenas\&.\&.lruns\&.\&.curruns" (\fBsize_t\fR) r\- [\fB\-\-enable\-stats\fR] .RS 4 Current number of runs for this size class\&. .RE .SH "DEBUGGING MALLOC PROBLEMS" .PP When debugging, it is a good idea to configure/build jemalloc with the \fB\-\-enable\-debug\fR and \fB\-\-enable\-fill\fR options, and recompile the program with suitable options and symbols for debugger support\&. When so configured, jemalloc incorporates a wide variety of run\-time assertions that catch application errors such as double\-free, write\-after\-free, etc\&. .PP Programs often accidentally depend on \(lquninitialized\(rq memory actually being filled with zero bytes\&. Junk filling (see the "opt\&.junk" option) tends to expose such bugs in the form of obviously incorrect results and/or coredumps\&. Conversely, zero filling (see the "opt\&.zero" option) eliminates the symptoms of such bugs\&. Between these two options, it is usually possible to quickly detect, diagnose, and eliminate such bugs\&. .PP This implementation does not provide much detail about the problems it detects, because the performance impact for storing such information would be prohibitive\&. However, jemalloc does integrate with the most excellent \m[blue]\fBValgrind\fR\m[]\&\s-2\u[2]\d\s+2 tool if the \fB\-\-enable\-valgrind\fR configuration option is enabled\&. .SH "DIAGNOSTIC MESSAGES" .PP If any of the memory allocation/deallocation functions detect an error or warning condition, a message will be printed to file descriptor \fBSTDERR_FILENO\fR\&. Errors will result in the process dumping core\&. If the "opt\&.abort" option is set, most warnings are treated as errors\&. .PP The \fImalloc_message\fR variable allows the programmer to override the function which emits the text strings forming the errors and warnings if for some reason the \fBSTDERR_FILENO\fR file descriptor is not suitable for this\&. \fBmalloc_message\fR\fB\fR takes the \fIcbopaque\fR pointer argument that is \fBNULL\fR unless overridden by the arguments in a call to \fBmalloc_stats_print\fR\fB\fR, followed by a string pointer\&. Please note that doing anything which tries to allocate memory in this function is likely to result in a crash or deadlock\&. .PP All messages are prefixed by \(lq:\(rq\&. .SH "RETURN VALUES" .SS "Standard API" .PP The \fBmalloc\fR\fB\fR and \fBcalloc\fR\fB\fR functions return a pointer to the allocated memory if successful; otherwise a \fBNULL\fR pointer is returned and \fIerrno\fR is set to ENOMEM\&. .PP The \fBposix_memalign\fR\fB\fR function returns the value 0 if successful; otherwise it returns an error value\&. The \fBposix_memalign\fR\fB\fR function will fail if: .PP EINVAL .RS 4 The \fIalignment\fR parameter is not a power of 2 at least as large as sizeof(\fBvoid *\fR)\&. .RE .PP ENOMEM .RS 4 Memory allocation error\&. .RE .PP The \fBaligned_alloc\fR\fB\fR function returns a pointer to the allocated memory if successful; otherwise a \fBNULL\fR pointer is returned and \fIerrno\fR is set\&. The \fBaligned_alloc\fR\fB\fR function will fail if: .PP EINVAL .RS 4 The \fIalignment\fR parameter is not a power of 2\&. .RE .PP ENOMEM .RS 4 Memory allocation error\&. .RE .PP The \fBrealloc\fR\fB\fR function returns a pointer, possibly identical to \fIptr\fR, to the allocated memory if successful; otherwise a \fBNULL\fR pointer is returned, and \fIerrno\fR is set to ENOMEM if the error was the result of an allocation failure\&. The \fBrealloc\fR\fB\fR function always leaves the original buffer intact when an error occurs\&. .PP The \fBfree\fR\fB\fR function returns no value\&. .SS "Non\-standard API" .PP The \fBmalloc_usable_size\fR\fB\fR function returns the usable size of the allocation pointed to by \fIptr\fR\&. .PP The \fBmallctl\fR\fB\fR, \fBmallctlnametomib\fR\fB\fR, and \fBmallctlbymib\fR\fB\fR functions return 0 on success; otherwise they return an error value\&. The functions will fail if: .PP EINVAL .RS 4 \fInewp\fR is not \fBNULL\fR, and \fInewlen\fR is too large or too small\&. Alternatively, \fI*oldlenp\fR is too large or too small; in this case as much data as possible are read despite the error\&. .RE .PP ENOMEM .RS 4 \fI*oldlenp\fR is too short to hold the requested value\&. .RE .PP ENOENT .RS 4 \fIname\fR or \fImib\fR specifies an unknown/invalid value\&. .RE .PP EPERM .RS 4 Attempt to read or write void value, or attempt to write read\-only value\&. .RE .PP EAGAIN .RS 4 A memory allocation failure occurred\&. .RE .PP EFAULT .RS 4 An interface with side effects failed in some way not directly related to \fBmallctl*\fR\fB\fR read/write processing\&. .RE .SS "Experimental API" .PP The \fBallocm\fR\fB\fR, \fBrallocm\fR\fB\fR, \fBsallocm\fR\fB\fR, \fBdallocm\fR\fB\fR, and \fBnallocm\fR\fB\fR functions return \fBALLOCM_SUCCESS\fR on success; otherwise they return an error value\&. The \fBallocm\fR\fB\fR, \fBrallocm\fR\fB\fR, and \fBnallocm\fR\fB\fR functions will fail if: .PP ALLOCM_ERR_OOM .RS 4 Out of memory\&. Insufficient contiguous memory was available to service the allocation request\&. The \fBallocm\fR\fB\fR function additionally sets \fI*ptr\fR to \fBNULL\fR, whereas the \fBrallocm\fR\fB\fR function leaves \fB*ptr\fR unmodified\&. .RE The \fBrallocm\fR\fB\fR function will also fail if: .PP ALLOCM_ERR_NOT_MOVED .RS 4 \fBALLOCM_NO_MOVE\fR was specified, but the reallocation request could not be serviced without moving the object\&. .RE .SH "ENVIRONMENT" .PP The following environment variable affects the execution of the allocation functions: .PP \fBMALLOC_CONF\fR .RS 4 If the environment variable \fBMALLOC_CONF\fR is set, the characters it contains will be interpreted as options\&. .RE .SH "EXAMPLES" .PP To dump core whenever a problem occurs: .sp .if n \{\ .RS 4 .\} .nf ln \-s \*(Aqabort:true\*(Aq /etc/malloc\&.conf .fi .if n \{\ .RE .\} .PP To specify in the source a chunk size that is 16 MiB: .sp .if n \{\ .RS 4 .\} .nf malloc_conf = "lg_chunk:24"; .fi .if n \{\ .RE .\} .SH "SEE ALSO" .PP \fBmadvise\fR(2), \fBmmap\fR(2), \fBsbrk\fR(2), \fButrace\fR(2), \fBalloca\fR(3), \fBatexit\fR(3), \fBgetpagesize\fR(3) .SH "STANDARDS" .PP The \fBmalloc\fR\fB\fR, \fBcalloc\fR\fB\fR, \fBrealloc\fR\fB\fR, and \fBfree\fR\fB\fR functions conform to ISO/IEC 9899:1990 (\(lqISO C90\(rq)\&. .PP The \fBposix_memalign\fR\fB\fR function conforms to IEEE Std 1003\&.1\-2001 (\(lqPOSIX\&.1\(rq)\&. .SH "AUTHOR" .PP \fBJason Evans\fR .RS 4 .RE .SH "NOTES" .IP " 1." 4 jemalloc website .RS 4 \%http://www.canonware.com/jemalloc/ .RE .IP " 2." 4 Valgrind .RS 4 \%http://valgrind.org/ .RE .IP " 3." 4 gperftools package .RS 4 \%http://code.google.com/p/gperftools/ .RE redis-2.6.16/deps/jemalloc/doc/jemalloc.html000066400000000000000000002737601220734223100206710ustar00rootroot00000000000000JEMALLOC

Name

jemalloc — general purpose memory allocation functions

LIBRARY

This manual describes jemalloc 3.2.0-0-g87499f6748ebe4817571e817e9f680ccb5bf54a9. More information can be found at the jemalloc website.

SYNOPSIS

#include <stdlib.h>
#include <jemalloc/jemalloc.h>

Standard API

void *malloc(size_t size);
 
void *calloc(size_t number,
 size_t size);
 
int posix_memalign(void **ptr,
 size_t alignment,
 size_t size);
 
void *aligned_alloc(size_t alignment,
 size_t size);
 
void *realloc(void *ptr,
 size_t size);
 
void free(void *ptr);
 

Non-standard API

size_t malloc_usable_size(const void *ptr);
 
void malloc_stats_print(void (*write_cb) (void *, const char *) ,
 void *cbopaque,
 const char *opts);
 
int mallctl(const char *name,
 void *oldp,
 size_t *oldlenp,
 void *newp,
 size_t newlen);
 
int mallctlnametomib(const char *name,
 size_t *mibp,
 size_t *miblenp);
 
int mallctlbymib(const size_t *mib,
 size_t miblen,
 void *oldp,
 size_t *oldlenp,
 void *newp,
 size_t newlen);
 
void (*malloc_message)(void *cbopaque,
 const char *s);
 

const char *malloc_conf;

Experimental API

int allocm(void **ptr,
 size_t *rsize,
 size_t size,
 int flags);
 
int rallocm(void **ptr,
 size_t *rsize,
 size_t size,
 size_t extra,
 int flags);
 
int sallocm(const void *ptr,
 size_t *rsize,
 int flags);
 
int dallocm(void *ptr,
 int flags);
 
int nallocm(size_t *rsize,
 size_t size,
 int flags);
 

DESCRIPTION

Standard API

The malloc() function allocates size bytes of uninitialized memory. The allocated space is suitably aligned (after possible pointer coercion) for storage of any type of object.

The calloc() function allocates space for number objects, each size bytes in length. The result is identical to calling malloc() with an argument of number * size, with the exception that the allocated memory is explicitly initialized to zero bytes.

The posix_memalign() function allocates size bytes of memory such that the allocation's base address is an even multiple of alignment, and returns the allocation in the value pointed to by ptr. The requested alignment must be a power of 2 at least as large as sizeof(void *).

The aligned_alloc() function allocates size bytes of memory such that the allocation's base address is an even multiple of alignment. The requested alignment must be a power of 2. Behavior is undefined if size is not an integral multiple of alignment.

The realloc() function changes the size of the previously allocated memory referenced by ptr to size bytes. The contents of the memory are unchanged up to the lesser of the new and old sizes. If the new size is larger, the contents of the newly allocated portion of the memory are undefined. Upon success, the memory referenced by ptr is freed and a pointer to the newly allocated memory is returned. Note that realloc() may move the memory allocation, resulting in a different return value than ptr. If ptr is NULL, the realloc() function behaves identically to malloc() for the specified size.

The free() function causes the allocated memory referenced by ptr to be made available for future allocations. If ptr is NULL, no action occurs.

Non-standard API

The malloc_usable_size() function returns the usable size of the allocation pointed to by ptr. The return value may be larger than the size that was requested during allocation. The malloc_usable_size() function is not a mechanism for in-place realloc(); rather it is provided solely as a tool for introspection purposes. Any discrepancy between the requested allocation size and the size reported by malloc_usable_size() should not be depended on, since such behavior is entirely implementation-dependent.

The malloc_stats_print() function writes human-readable summary statistics via the write_cb callback function pointer and cbopaque data passed to write_cb, or malloc_message() if write_cb is NULL. This function can be called repeatedly. General information that never changes during execution can be omitted by specifying "g" as a character within the opts string. Note that malloc_message() uses the mallctl*() functions internally, so inconsistent statistics can be reported if multiple threads use these functions simultaneously. If --enable-stats is specified during configuration, “m” and “a” can be specified to omit merged arena and per arena statistics, respectively; “b” and “l” can be specified to omit per size class statistics for bins and large objects, respectively. Unrecognized characters are silently ignored. Note that thread caching may prevent some statistics from being completely up to date, since extra locking would be required to merge counters that track thread cache operations.

The mallctl() function provides a general interface for introspecting the memory allocator, as well as setting modifiable parameters and triggering actions. The period-separated name argument specifies a location in a tree-structured namespace; see the MALLCTL NAMESPACE section for documentation on the tree contents. To read a value, pass a pointer via oldp to adequate space to contain the value, and a pointer to its length via oldlenp; otherwise pass NULL and NULL. Similarly, to write a value, pass a pointer to the value via newp, and its length via newlen; otherwise pass NULL and 0.

The mallctlnametomib() function provides a way to avoid repeated name lookups for applications that repeatedly query the same portion of the namespace, by translating a name to a “Management Information Base” (MIB) that can be passed repeatedly to mallctlbymib(). Upon successful return from mallctlnametomib(), mibp contains an array of *miblenp integers, where *miblenp is the lesser of the number of components in name and the input value of *miblenp. Thus it is possible to pass a *miblenp that is smaller than the number of period-separated name components, which results in a partial MIB that can be used as the basis for constructing a complete MIB. For name components that are integers (e.g. the 2 in "arenas.bin.2.size" ), the corresponding MIB component will always be that integer. Therefore, it is legitimate to construct code like the following: 

unsigned nbins, i;

int mib[4];
size_t len, miblen;

len = sizeof(nbins);
mallctl("arenas.nbins", &nbins, &len, NULL, 0);

miblen = 4;
mallnametomib("arenas.bin.0.size", mib, &miblen);
for (i = 0; i < nbins; i++) {
	size_t bin_size;

	mib[2] = i;
	len = sizeof(bin_size);
	mallctlbymib(mib, miblen, &bin_size, &len, NULL, 0);
	/* Do something with bin_size... */
}

Experimental API

The experimental API is subject to change or removal without regard for backward compatibility. If --disable-experimental is specified during configuration, the experimental API is omitted.

The allocm(), rallocm(), sallocm(), dallocm(), and nallocm() functions all have a flags argument that can be used to specify options. The functions only check the options that are contextually relevant. Use bitwise or (|) operations to specify one or more of the following:

ALLOCM_LG_ALIGN(la)

Align the memory allocation to start at an address that is a multiple of (1 << la). This macro does not validate that la is within the valid range.

ALLOCM_ALIGN(a)

Align the memory allocation to start at an address that is a multiple of a, where a is a power of two. This macro does not validate that a is a power of 2.

ALLOCM_ZERO

Initialize newly allocated memory to contain zero bytes. In the growing reallocation case, the real size prior to reallocation defines the boundary between untouched bytes and those that are initialized to contain zero bytes. If this option is absent, newly allocated memory is uninitialized.

ALLOCM_NO_MOVE

For reallocation, fail rather than moving the object. This constraint can apply to both growth and shrinkage.

ALLOCM_ARENA(a)

Use the arena specified by the index a. This macro does not validate that a specifies an arena in the valid range.

The allocm() function allocates at least size bytes of memory, sets *ptr to the base address of the allocation, and sets *rsize to the real size of the allocation if rsize is not NULL. Behavior is undefined if size is 0.

The rallocm() function resizes the allocation at *ptr to be at least size bytes, sets *ptr to the base address of the allocation if it moved, and sets *rsize to the real size of the allocation if rsize is not NULL. If extra is non-zero, an attempt is made to resize the allocation to be at least size + extra) bytes, though inability to allocate the extra byte(s) will not by itself result in failure. Behavior is undefined if size is 0, or if (size + extra > SIZE_T_MAX).

The sallocm() function sets *rsize to the real size of the allocation.

The dallocm() function causes the memory referenced by ptr to be made available for future allocations.

The nallocm() function allocates no memory, but it performs the same size computation as the allocm() function, and if rsize is not NULL it sets *rsize to the real size of the allocation that would result from the equivalent allocm() function call. Behavior is undefined if size is 0.

TUNING

Once, when the first call is made to one of the memory allocation routines, the allocator initializes its internals based in part on various options that can be specified at compile- or run-time.

The string pointed to by the global variable malloc_conf, the “name” of the file referenced by the symbolic link named /etc/malloc.conf, and the value of the environment variable MALLOC_CONF, will be interpreted, in that order, from left to right as options.

An options string is a comma-separated list of option:value pairs. There is one key corresponding to each "opt.*" mallctl (see the MALLCTL NAMESPACE section for options documentation). For example, abort:true,narenas:1 sets the "opt.abort" and "opt.narenas" options. Some options have boolean values (true/false), others have integer values (base 8, 10, or 16, depending on prefix), and yet others have raw string values.

IMPLEMENTATION NOTES

Traditionally, allocators have used sbrk(2) to obtain memory, which is suboptimal for several reasons, including race conditions, increased fragmentation, and artificial limitations on maximum usable memory. If --enable-dss is specified during configuration, this allocator uses both mmap(2) and sbrk(2), in that order of preference; otherwise only mmap(2) is used.

This allocator uses multiple arenas in order to reduce lock contention for threaded programs on multi-processor systems. This works well with regard to threading scalability, but incurs some costs. There is a small fixed per-arena overhead, and additionally, arenas manage memory completely independently of each other, which means a small fixed increase in overall memory fragmentation. These overheads are not generally an issue, given the number of arenas normally used. Note that using substantially more arenas than the default is not likely to improve performance, mainly due to reduced cache performance. However, it may make sense to reduce the number of arenas if an application does not make much use of the allocation functions.

In addition to multiple arenas, unless --disable-tcache is specified during configuration, this allocator supports thread-specific caching for small and large objects, in order to make it possible to completely avoid synchronization for most allocation requests. Such caching allows very fast allocation in the common case, but it increases memory usage and fragmentation, since a bounded number of objects can remain allocated in each thread cache.

Memory is conceptually broken into equal-sized chunks, where the chunk size is a power of two that is greater than the page size. Chunks are always aligned to multiples of the chunk size. This alignment makes it possible to find metadata for user objects very quickly.

User objects are broken into three categories according to size: small, large, and huge. Small objects are smaller than one page. Large objects are smaller than the chunk size. Huge objects are a multiple of the chunk size. Small and large objects are managed by arenas; huge objects are managed separately in a single data structure that is shared by all threads. Huge objects are used by applications infrequently enough that this single data structure is not a scalability issue.

Each chunk that is managed by an arena tracks its contents as runs of contiguous pages (unused, backing a set of small objects, or backing one large object). The combination of chunk alignment and chunk page maps makes it possible to determine all metadata regarding small and large allocations in constant time.

Small objects are managed in groups by page runs. Each run maintains a frontier and free list to track which regions are in use. Allocation requests that are no more than half the quantum (8 or 16, depending on architecture) are rounded up to the nearest power of two that is at least sizeof(double). All other small object size classes are multiples of the quantum, spaced such that internal fragmentation is limited to approximately 25% for all but the smallest size classes. Allocation requests that are larger than the maximum small size class, but small enough to fit in an arena-managed chunk (see the "opt.lg_chunk" option), are rounded up to the nearest run size. Allocation requests that are too large to fit in an arena-managed chunk are rounded up to the nearest multiple of the chunk size.

Allocations are packed tightly together, which can be an issue for multi-threaded applications. If you need to assure that allocations do not suffer from cacheline sharing, round your allocation requests up to the nearest multiple of the cacheline size, or specify cacheline alignment when allocating.

Assuming 4 MiB chunks, 4 KiB pages, and a 16-byte quantum on a 64-bit system, the size classes in each category are as shown in Table 1.

Table 1. Size classes

CategorySpacingSize
Smalllg[8]
16[16, 32, 48, ..., 128]
32[160, 192, 224, 256]
64[320, 384, 448, 512]
128[640, 768, 896, 1024]
256[1280, 1536, 1792, 2048]
512[2560, 3072, 3584]
Large4 KiB[4 KiB, 8 KiB, 12 KiB, ..., 4072 KiB]
Huge4 MiB[4 MiB, 8 MiB, 12 MiB, ...]

MALLCTL NAMESPACE

The following names are defined in the namespace accessible via the mallctl*() functions. Value types are specified in parentheses, their readable/writable statuses are encoded as rw, r-, -w, or --, and required build configuration flags follow, if any. A name element encoded as <i> or <j> indicates an integer component, where the integer varies from 0 to some upper value that must be determined via introspection. In the case of "stats.arenas.<i>.*" , <i> equal to "arenas.narenas" can be used to access the summation of statistics from all arenas. Take special note of the "epoch" mallctl, which controls refreshing of cached dynamic statistics.

"version" (const char *) r-

Return the jemalloc version string.

"epoch" (uint64_t) rw

If a value is passed in, refresh the data from which the mallctl*() functions report values, and increment the epoch. Return the current epoch. This is useful for detecting whether another thread caused a refresh.

"config.debug" (bool) r-

--enable-debug was specified during build configuration.

"config.dss" (bool) r-

--enable-dss was specified during build configuration.

"config.fill" (bool) r-

--enable-fill was specified during build configuration.

"config.lazy_lock" (bool) r-

--enable-lazy-lock was specified during build configuration.

"config.mremap" (bool) r-

--enable-mremap was specified during build configuration.

"config.munmap" (bool) r-

--enable-munmap was specified during build configuration.

"config.prof" (bool) r-

--enable-prof was specified during build configuration.

"config.prof_libgcc" (bool) r-

--disable-prof-libgcc was not specified during build configuration.

"config.prof_libunwind" (bool) r-

--enable-prof-libunwind was specified during build configuration.

"config.stats" (bool) r-

--enable-stats was specified during build configuration.

"config.tcache" (bool) r-

--disable-tcache was not specified during build configuration.

"config.tls" (bool) r-

--disable-tls was not specified during build configuration.

"config.utrace" (bool) r-

--enable-utrace was specified during build configuration.

"config.valgrind" (bool) r-

--enable-valgrind was specified during build configuration.

"config.xmalloc" (bool) r-

--enable-xmalloc was specified during build configuration.

"opt.abort" (bool) r-

Abort-on-warning enabled/disabled. If true, most warnings are fatal. The process will call abort(3) in these cases. This option is disabled by default unless --enable-debug is specified during configuration, in which case it is enabled by default.

"opt.lg_chunk" (size_t) r-

Virtual memory chunk size (log base 2). The default chunk size is 4 MiB (2^22).

"opt.dss" (const char *) r-

dss (sbrk(2)) allocation precedence as related to mmap(2) allocation. The following settings are supported: “disabled”, “primary”, and “secondary” (default).

"opt.narenas" (size_t) r-

Maximum number of arenas to use for automatic multiplexing of threads and arenas. The default is four times the number of CPUs, or one if there is a single CPU.

"opt.lg_dirty_mult" (ssize_t) r-

Per-arena minimum ratio (log base 2) of active to dirty pages. Some dirty unused pages may be allowed to accumulate, within the limit set by the ratio (or one chunk worth of dirty pages, whichever is greater), before informing the kernel about some of those pages via madvise(2) or a similar system call. This provides the kernel with sufficient information to recycle dirty pages if physical memory becomes scarce and the pages remain unused. The default minimum ratio is 8:1 (2^3:1); an option value of -1 will disable dirty page purging.

"opt.stats_print" (bool) r-

Enable/disable statistics printing at exit. If enabled, the malloc_stats_print() function is called at program exit via an atexit(3) function. If --enable-stats is specified during configuration, this has the potential to cause deadlock for a multi-threaded process that exits while one or more threads are executing in the memory allocation functions. Therefore, this option should only be used with care; it is primarily intended as a performance tuning aid during application development. This option is disabled by default.

"opt.junk" (bool) r- [--enable-fill]

Junk filling enabled/disabled. If enabled, each byte of uninitialized allocated memory will be initialized to 0xa5. All deallocated memory will be initialized to 0x5a. This is intended for debugging and will impact performance negatively. This option is disabled by default unless --enable-debug is specified during configuration, in which case it is enabled by default unless running inside Valgrind.

"opt.quarantine" (size_t) r- [--enable-fill]

Per thread quarantine size in bytes. If non-zero, each thread maintains a FIFO object quarantine that stores up to the specified number of bytes of memory. The quarantined memory is not freed until it is released from quarantine, though it is immediately junk-filled if the "opt.junk" option is enabled. This feature is of particular use in combination with Valgrind, which can detect attempts to access quarantined objects. This is intended for debugging and will impact performance negatively. The default quarantine size is 0 unless running inside Valgrind, in which case the default is 16 MiB.

"opt.redzone" (bool) r- [--enable-fill]

Redzones enabled/disabled. If enabled, small allocations have redzones before and after them. Furthermore, if the "opt.junk" option is enabled, the redzones are checked for corruption during deallocation. However, the primary intended purpose of this feature is to be used in combination with Valgrind, which needs redzones in order to do effective buffer overflow/underflow detection. This option is intended for debugging and will impact performance negatively. This option is disabled by default unless running inside Valgrind.

"opt.zero" (bool) r- [--enable-fill]

Zero filling enabled/disabled. If enabled, each byte of uninitialized allocated memory will be initialized to 0. Note that this initialization only happens once for each byte, so realloc() and rallocm() calls do not zero memory that was previously allocated. This is intended for debugging and will impact performance negatively. This option is disabled by default.

"opt.utrace" (bool) r- [--enable-utrace]

Allocation tracing based on utrace(2) enabled/disabled. This option is disabled by default.

"opt.valgrind" (bool) r- [--enable-valgrind]

Valgrind support enabled/disabled. This option is vestigal because jemalloc auto-detects whether it is running inside Valgrind. This option is disabled by default, unless running inside Valgrind.

"opt.xmalloc" (bool) r- [--enable-xmalloc]

Abort-on-out-of-memory enabled/disabled. If enabled, rather than returning failure for any allocation function, display a diagnostic message on STDERR_FILENO and cause the program to drop core (using abort(3)). If an application is designed to depend on this behavior, set the option at compile time by including the following in the source code: 

malloc_conf = "xmalloc:true";

This option is disabled by default.

"opt.tcache" (bool) r- [--enable-tcache]

Thread-specific caching enabled/disabled. When there are multiple threads, each thread uses a thread-specific cache for objects up to a certain size. Thread-specific caching allows many allocations to be satisfied without performing any thread synchronization, at the cost of increased memory use. See the "opt.lg_tcache_max" option for related tuning information. This option is enabled by default unless running inside Valgrind.

"opt.lg_tcache_max" (size_t) r- [--enable-tcache]

Maximum size class (log base 2) to cache in the thread-specific cache. At a minimum, all small size classes are cached, and at a maximum all large size classes are cached. The default maximum is 32 KiB (2^15).

"opt.prof" (bool) r- [--enable-prof]

Memory profiling enabled/disabled. If enabled, profile memory allocation activity. See the "opt.prof_active" option for on-the-fly activation/deactivation. See the "opt.lg_prof_sample" option for probabilistic sampling control. See the "opt.prof_accum" option for control of cumulative sample reporting. See the "opt.lg_prof_interval" option for information on interval-triggered profile dumping, the "opt.prof_gdump" option for information on high-water-triggered profile dumping, and the "opt.prof_final" option for final profile dumping. Profile output is compatible with the included pprof Perl script, which originates from the gperftools package.

"opt.prof_prefix" (const char *) r- [--enable-prof]

Filename prefix for profile dumps. If the prefix is set to the empty string, no automatic dumps will occur; this is primarily useful for disabling the automatic final heap dump (which also disables leak reporting, if enabled). The default prefix is jeprof.

"opt.prof_active" (bool) r- [--enable-prof]

Profiling activated/deactivated. This is a secondary control mechanism that makes it possible to start the application with profiling enabled (see the "opt.prof" option) but inactive, then toggle profiling at any time during program execution with the "prof.active" mallctl. This option is enabled by default.

"opt.lg_prof_sample" (ssize_t) r- [--enable-prof]

Average interval (log base 2) between allocation samples, as measured in bytes of allocation activity. Increasing the sampling interval decreases profile fidelity, but also decreases the computational overhead. The default sample interval is 512 KiB (2^19 B).

"opt.prof_accum" (bool) r- [--enable-prof]

Reporting of cumulative object/byte counts in profile dumps enabled/disabled. If this option is enabled, every unique backtrace must be stored for the duration of execution. Depending on the application, this can impose a large memory overhead, and the cumulative counts are not always of interest. This option is disabled by default.

"opt.lg_prof_interval" (ssize_t) r- [--enable-prof]

Average interval (log base 2) between memory profile dumps, as measured in bytes of allocation activity. The actual interval between dumps may be sporadic because decentralized allocation counters are used to avoid synchronization bottlenecks. Profiles are dumped to files named according to the pattern <prefix>.<pid>.<seq>.i<iseq>.heap, where <prefix> is controlled by the "opt.prof_prefix" option. By default, interval-triggered profile dumping is disabled (encoded as -1).

"opt.prof_gdump" (bool) r- [--enable-prof]

Trigger a memory profile dump every time the total virtual memory exceeds the previous maximum. Profiles are dumped to files named according to the pattern <prefix>.<pid>.<seq>.u<useq>.heap, where <prefix> is controlled by the "opt.prof_prefix" option. This option is disabled by default.

"opt.prof_final" (bool) r- [--enable-prof]

Use an atexit(3) function to dump final memory usage to a file named according to the pattern <prefix>.<pid>.<seq>.f.heap, where <prefix> is controlled by the "opt.prof_prefix" option. This option is enabled by default.

"opt.prof_leak" (bool) r- [--enable-prof]

Leak reporting enabled/disabled. If enabled, use an atexit(3) function to report memory leaks detected by allocation sampling. See the "opt.prof" option for information on analyzing heap profile output. This option is disabled by default.

"thread.arena" (unsigned) rw

Get or set the arena associated with the calling thread. If the specified arena was not initialized beforehand (see the "arenas.initialized" mallctl), it will be automatically initialized as a side effect of calling this interface.

"thread.allocated" (uint64_t) r- [--enable-stats]

Get the total number of bytes ever allocated by the calling thread. This counter has the potential to wrap around; it is up to the application to appropriately interpret the counter in such cases.

"thread.allocatedp" (uint64_t *) r- [--enable-stats]

Get a pointer to the the value that is returned by the "thread.allocated" mallctl. This is useful for avoiding the overhead of repeated mallctl*() calls.

"thread.deallocated" (uint64_t) r- [--enable-stats]

Get the total number of bytes ever deallocated by the calling thread. This counter has the potential to wrap around; it is up to the application to appropriately interpret the counter in such cases.

"thread.deallocatedp" (uint64_t *) r- [--enable-stats]

Get a pointer to the the value that is returned by the "thread.deallocated" mallctl. This is useful for avoiding the overhead of repeated mallctl*() calls.

"thread.tcache.enabled" (bool) rw [--enable-tcache]

Enable/disable calling thread's tcache. The tcache is implicitly flushed as a side effect of becoming disabled (see "thread.tcache.flush" ).

"thread.tcache.flush" (void) -- [--enable-tcache]

Flush calling thread's tcache. This interface releases all cached objects and internal data structures associated with the calling thread's thread-specific cache. Ordinarily, this interface need not be called, since automatic periodic incremental garbage collection occurs, and the thread cache is automatically discarded when a thread exits. However, garbage collection is triggered by allocation activity, so it is possible for a thread that stops allocating/deallocating to retain its cache indefinitely, in which case the developer may find manual flushing useful.

"arena.<i>.purge" (unsigned) --

Purge unused dirty pages for arena <i>, or for all arenas if <i> equals "arenas.narenas" .

"arena.<i>.dss" (const char *) rw

Set the precedence of dss allocation as related to mmap allocation for arena <i>, or for all arenas if <i> equals "arenas.narenas" . See "opt.dss" for supported settings.

"arenas.narenas" (unsigned) r-

Current limit on number of arenas.

"arenas.initialized" (bool *) r-

An array of "arenas.narenas" booleans. Each boolean indicates whether the corresponding arena is initialized.

"arenas.quantum" (size_t) r-

Quantum size.

"arenas.page" (size_t) r-

Page size.

"arenas.tcache_max" (size_t) r- [--enable-tcache]

Maximum thread-cached size class.

"arenas.nbins" (unsigned) r-

Number of bin size classes.

"arenas.nhbins" (unsigned) r- [--enable-tcache]

Total number of thread cache bin size classes.

"arenas.bin.<i>.size" (size_t) r-

Maximum size supported by size class.

"arenas.bin.<i>.nregs" (uint32_t) r-

Number of regions per page run.

"arenas.bin.<i>.run_size" (size_t) r-

Number of bytes per page run.

"arenas.nlruns" (size_t) r-

Total number of large size classes.

"arenas.lrun.<i>.size" (size_t) r-

Maximum size supported by this large size class.

"arenas.purge" (unsigned) -w

Purge unused dirty pages for the specified arena, or for all arenas if none is specified.

"arenas.extend" (unsigned) r-

Extend the array of arenas by appending a new arena, and returning the new arena index.

"prof.active" (bool) rw [--enable-prof]

Control whether sampling is currently active. See the "opt.prof_active" option for additional information.

"prof.dump" (const char *) -w [--enable-prof]

Dump a memory profile to the specified file, or if NULL is specified, to a file according to the pattern <prefix>.<pid>.<seq>.m<mseq>.heap, where <prefix> is controlled by the "opt.prof_prefix" option.

"prof.interval" (uint64_t) r- [--enable-prof]

Average number of bytes allocated between inverval-based profile dumps. See the "opt.lg_prof_interval" option for additional information.

"stats.cactive" (size_t *) r- [--enable-stats]

Pointer to a counter that contains an approximate count of the current number of bytes in active pages. The estimate may be high, but never low, because each arena rounds up to the nearest multiple of the chunk size when computing its contribution to the counter. Note that the "epoch" mallctl has no bearing on this counter. Furthermore, counter consistency is maintained via atomic operations, so it is necessary to use an atomic operation in order to guarantee a consistent read when dereferencing the pointer.

"stats.allocated" (size_t) r- [--enable-stats]

Total number of bytes allocated by the application.

"stats.active" (size_t) r- [--enable-stats]

Total number of bytes in active pages allocated by the application. This is a multiple of the page size, and greater than or equal to "stats.allocated" . This does not include "stats.arenas.<i>.pdirty" and pages entirely devoted to allocator metadata.

"stats.mapped" (size_t) r- [--enable-stats]

Total number of bytes in chunks mapped on behalf of the application. This is a multiple of the chunk size, and is at least as large as "stats.active" . This does not include inactive chunks.

"stats.chunks.current" (size_t) r- [--enable-stats]

Total number of chunks actively mapped on behalf of the application. This does not include inactive chunks.

"stats.chunks.total" (uint64_t) r- [--enable-stats]

Cumulative number of chunks allocated.

"stats.chunks.high" (size_t) r- [--enable-stats]

Maximum number of active chunks at any time thus far.

"stats.huge.allocated" (size_t) r- [--enable-stats]

Number of bytes currently allocated by huge objects.

"stats.huge.nmalloc" (uint64_t) r- [--enable-stats]

Cumulative number of huge allocation requests.

"stats.huge.ndalloc" (uint64_t) r- [--enable-stats]

Cumulative number of huge deallocation requests.

"stats.arenas.<i>.dss" (const char *) r-

dss (sbrk(2)) allocation precedence as related to mmap(2) allocation. See "opt.dss" for details.

"stats.arenas.<i>.nthreads" (unsigned) r-

Number of threads currently assigned to arena.

"stats.arenas.<i>.pactive" (size_t) r-

Number of pages in active runs.

"stats.arenas.<i>.pdirty" (size_t) r-

Number of pages within unused runs that are potentially dirty, and for which madvise(..., MADV_DONTNEED) or similar has not been called.

"stats.arenas.<i>.mapped" (size_t) r- [--enable-stats]

Number of mapped bytes.

"stats.arenas.<i>.npurge" (uint64_t) r- [--enable-stats]

Number of dirty page purge sweeps performed.

"stats.arenas.<i>.nmadvise" (uint64_t) r- [--enable-stats]

Number of madvise(..., MADV_DONTNEED) or similar calls made to purge dirty pages.

"stats.arenas.<i>.npurged" (uint64_t) r- [--enable-stats]

Number of pages purged.

"stats.arenas.<i>.small.allocated" (size_t) r- [--enable-stats]

Number of bytes currently allocated by small objects.

"stats.arenas.<i>.small.nmalloc" (uint64_t) r- [--enable-stats]

Cumulative number of allocation requests served by small bins.

"stats.arenas.<i>.small.ndalloc" (uint64_t) r- [--enable-stats]

Cumulative number of small objects returned to bins.

"stats.arenas.<i>.small.nrequests" (uint64_t) r- [--enable-stats]

Cumulative number of small allocation requests.

"stats.arenas.<i>.large.allocated" (size_t) r- [--enable-stats]

Number of bytes currently allocated by large objects.

"stats.arenas.<i>.large.nmalloc" (uint64_t) r- [--enable-stats]

Cumulative number of large allocation requests served directly by the arena.

"stats.arenas.<i>.large.ndalloc" (uint64_t) r- [--enable-stats]

Cumulative number of large deallocation requests served directly by the arena.

"stats.arenas.<i>.large.nrequests" (uint64_t) r- [--enable-stats]

Cumulative number of large allocation requests.

"stats.arenas.<i>.bins.<j>.allocated" (size_t) r- [--enable-stats]

Current number of bytes allocated by bin.

"stats.arenas.<i>.bins.<j>.nmalloc" (uint64_t) r- [--enable-stats]

Cumulative number of allocations served by bin.

"stats.arenas.<i>.bins.<j>.ndalloc" (uint64_t) r- [--enable-stats]

Cumulative number of allocations returned to bin.

"stats.arenas.<i>.bins.<j>.nrequests" (uint64_t) r- [--enable-stats]

Cumulative number of allocation requests.

"stats.arenas.<i>.bins.<j>.nfills" (uint64_t) r- [--enable-stats --enable-tcache]

Cumulative number of tcache fills.

"stats.arenas.<i>.bins.<j>.nflushes" (uint64_t) r- [--enable-stats --enable-tcache]

Cumulative number of tcache flushes.

"stats.arenas.<i>.bins.<j>.nruns" (uint64_t) r- [--enable-stats]

Cumulative number of runs created.

"stats.arenas.<i>.bins.<j>.nreruns" (uint64_t) r- [--enable-stats]

Cumulative number of times the current run from which to allocate changed.

"stats.arenas.<i>.bins.<j>.curruns" (size_t) r- [--enable-stats]

Current number of runs.

"stats.arenas.<i>.lruns.<j>.nmalloc" (uint64_t) r- [--enable-stats]

Cumulative number of allocation requests for this size class served directly by the arena.

"stats.arenas.<i>.lruns.<j>.ndalloc" (uint64_t) r- [--enable-stats]

Cumulative number of deallocation requests for this size class served directly by the arena.

"stats.arenas.<i>.lruns.<j>.nrequests" (uint64_t) r- [--enable-stats]

Cumulative number of allocation requests for this size class.

"stats.arenas.<i>.lruns.<j>.curruns" (size_t) r- [--enable-stats]

Current number of runs for this size class.

DEBUGGING MALLOC PROBLEMS

When debugging, it is a good idea to configure/build jemalloc with the --enable-debug and --enable-fill options, and recompile the program with suitable options and symbols for debugger support. When so configured, jemalloc incorporates a wide variety of run-time assertions that catch application errors such as double-free, write-after-free, etc.

Programs often accidentally depend on “uninitialized” memory actually being filled with zero bytes. Junk filling (see the "opt.junk" option) tends to expose such bugs in the form of obviously incorrect results and/or coredumps. Conversely, zero filling (see the "opt.zero" option) eliminates the symptoms of such bugs. Between these two options, it is usually possible to quickly detect, diagnose, and eliminate such bugs.

This implementation does not provide much detail about the problems it detects, because the performance impact for storing such information would be prohibitive. However, jemalloc does integrate with the most excellent Valgrind tool if the --enable-valgrind configuration option is enabled.

DIAGNOSTIC MESSAGES

If any of the memory allocation/deallocation functions detect an error or warning condition, a message will be printed to file descriptor STDERR_FILENO. Errors will result in the process dumping core. If the "opt.abort" option is set, most warnings are treated as errors.

The malloc_message variable allows the programmer to override the function which emits the text strings forming the errors and warnings if for some reason the STDERR_FILENO file descriptor is not suitable for this. malloc_message() takes the cbopaque pointer argument that is NULL unless overridden by the arguments in a call to malloc_stats_print(), followed by a string pointer. Please note that doing anything which tries to allocate memory in this function is likely to result in a crash or deadlock.

All messages are prefixed by “<jemalloc>: ”.

RETURN VALUES

Standard API

The malloc() and calloc() functions return a pointer to the allocated memory if successful; otherwise a NULL pointer is returned and errno is set to ENOMEM.

The posix_memalign() function returns the value 0 if successful; otherwise it returns an error value. The posix_memalign() function will fail if:

EINVAL

The alignment parameter is not a power of 2 at least as large as sizeof(void *).

ENOMEM

Memory allocation error.

The aligned_alloc() function returns a pointer to the allocated memory if successful; otherwise a NULL pointer is returned and errno is set. The aligned_alloc() function will fail if:

EINVAL

The alignment parameter is not a power of 2.

ENOMEM

Memory allocation error.

The realloc() function returns a pointer, possibly identical to ptr, to the allocated memory if successful; otherwise a NULL pointer is returned, and errno is set to ENOMEM if the error was the result of an allocation failure. The realloc() function always leaves the original buffer intact when an error occurs.

The free() function returns no value.

Non-standard API

The malloc_usable_size() function returns the usable size of the allocation pointed to by ptr.

The mallctl(), mallctlnametomib(), and mallctlbymib() functions return 0 on success; otherwise they return an error value. The functions will fail if:

EINVAL

newp is not NULL, and newlen is too large or too small. Alternatively, *oldlenp is too large or too small; in this case as much data as possible are read despite the error.

ENOMEM

*oldlenp is too short to hold the requested value.

ENOENT

name or mib specifies an unknown/invalid value.

EPERM

Attempt to read or write void value, or attempt to write read-only value.

EAGAIN

A memory allocation failure occurred.

EFAULT

An interface with side effects failed in some way not directly related to mallctl*() read/write processing.

Experimental API

The allocm(), rallocm(), sallocm(), dallocm(), and nallocm() functions return ALLOCM_SUCCESS on success; otherwise they return an error value. The allocm(), rallocm(), and nallocm() functions will fail if:

ALLOCM_ERR_OOM

Out of memory. Insufficient contiguous memory was available to service the allocation request. The allocm() function additionally sets *ptr to NULL, whereas the rallocm() function leaves *ptr unmodified.

The rallocm() function will also fail if:

ALLOCM_ERR_NOT_MOVED

ALLOCM_NO_MOVE was specified, but the reallocation request could not be serviced without moving the object.

ENVIRONMENT

The following environment variable affects the execution of the allocation functions:

MALLOC_CONF

If the environment variable MALLOC_CONF is set, the characters it contains will be interpreted as options.

EXAMPLES

To dump core whenever a problem occurs: 

ln -s 'abort:true' /etc/malloc.conf

To specify in the source a chunk size that is 16 MiB: 

malloc_conf = "lg_chunk:24";

SEE ALSO

madvise(2), mmap(2), sbrk(2), utrace(2), alloca(3), atexit(3), getpagesize(3)

STANDARDS

The malloc(), calloc(), realloc(), and free() functions conform to ISO/IEC 9899:1990 (“ISO C90”).

The posix_memalign() function conforms to IEEE Std 1003.1-2001 (“POSIX.1”).

redis-2.6.16/deps/jemalloc/doc/jemalloc.xml.in000066400000000000000000002627171220734223100211320ustar00rootroot00000000000000 User Manual jemalloc @jemalloc_version@ Jason Evans Author JEMALLOC 3 jemalloc jemalloc general purpose memory allocation functions LIBRARY This manual describes jemalloc @jemalloc_version@. More information can be found at the jemalloc website. SYNOPSIS #include <stdlib.h> #include <jemalloc/jemalloc.h> Standard API void *malloc size_t size void *calloc size_t number size_t size int posix_memalign void **ptr size_t alignment size_t size void *aligned_alloc size_t alignment size_t size void *realloc void *ptr size_t size void free void *ptr Non-standard API size_t malloc_usable_size const void *ptr void malloc_stats_print void (*write_cb) void *, const char * void *cbopaque const char *opts int mallctl const char *name void *oldp size_t *oldlenp void *newp size_t newlen int mallctlnametomib const char *name size_t *mibp size_t *miblenp int mallctlbymib const size_t *mib size_t miblen void *oldp size_t *oldlenp void *newp size_t newlen void (*malloc_message) void *cbopaque const char *s const char *malloc_conf; Experimental API int allocm void **ptr size_t *rsize size_t size int flags int rallocm void **ptr size_t *rsize size_t size size_t extra int flags int sallocm const void *ptr size_t *rsize int flags int dallocm void *ptr int flags int nallocm size_t *rsize size_t size int flags DESCRIPTION Standard API The malloc function allocates size bytes of uninitialized memory. The allocated space is suitably aligned (after possible pointer coercion) for storage of any type of object. The calloc function allocates space for number objects, each size bytes in length. The result is identical to calling malloc with an argument of number * size, with the exception that the allocated memory is explicitly initialized to zero bytes. The posix_memalign function allocates size bytes of memory such that the allocation's base address is an even multiple of alignment, and returns the allocation in the value pointed to by ptr. The requested alignment must be a power of 2 at least as large as sizeof(void *). The aligned_alloc function allocates size bytes of memory such that the allocation's base address is an even multiple of alignment. The requested alignment must be a power of 2. Behavior is undefined if size is not an integral multiple of alignment. The realloc function changes the size of the previously allocated memory referenced by ptr to size bytes. The contents of the memory are unchanged up to the lesser of the new and old sizes. If the new size is larger, the contents of the newly allocated portion of the memory are undefined. Upon success, the memory referenced by ptr is freed and a pointer to the newly allocated memory is returned. Note that realloc may move the memory allocation, resulting in a different return value than ptr. If ptr is NULL, the realloc function behaves identically to malloc for the specified size. The free function causes the allocated memory referenced by ptr to be made available for future allocations. If ptr is NULL, no action occurs. Non-standard API The malloc_usable_size function returns the usable size of the allocation pointed to by ptr. The return value may be larger than the size that was requested during allocation. The malloc_usable_size function is not a mechanism for in-place realloc; rather it is provided solely as a tool for introspection purposes. Any discrepancy between the requested allocation size and the size reported by malloc_usable_size should not be depended on, since such behavior is entirely implementation-dependent. The malloc_stats_print function writes human-readable summary statistics via the write_cb callback function pointer and cbopaque data passed to write_cb, or malloc_message if write_cb is NULL. This function can be called repeatedly. General information that never changes during execution can be omitted by specifying "g" as a character within the opts string. Note that malloc_message uses the mallctl* functions internally, so inconsistent statistics can be reported if multiple threads use these functions simultaneously. If is specified during configuration, “m” and “a” can be specified to omit merged arena and per arena statistics, respectively; “b” and “l” can be specified to omit per size class statistics for bins and large objects, respectively. Unrecognized characters are silently ignored. Note that thread caching may prevent some statistics from being completely up to date, since extra locking would be required to merge counters that track thread cache operations. The mallctl function provides a general interface for introspecting the memory allocator, as well as setting modifiable parameters and triggering actions. The period-separated name argument specifies a location in a tree-structured namespace; see the section for documentation on the tree contents. To read a value, pass a pointer via oldp to adequate space to contain the value, and a pointer to its length via oldlenp; otherwise pass NULL and NULL. Similarly, to write a value, pass a pointer to the value via newp, and its length via newlen; otherwise pass NULL and 0. The mallctlnametomib function provides a way to avoid repeated name lookups for applications that repeatedly query the same portion of the namespace, by translating a name to a “Management Information Base” (MIB) that can be passed repeatedly to mallctlbymib. Upon successful return from mallctlnametomib, mibp contains an array of *miblenp integers, where *miblenp is the lesser of the number of components in name and the input value of *miblenp. Thus it is possible to pass a *miblenp that is smaller than the number of period-separated name components, which results in a partial MIB that can be used as the basis for constructing a complete MIB. For name components that are integers (e.g. the 2 in arenas.bin.2.size), the corresponding MIB component will always be that integer. Therefore, it is legitimate to construct code like the following: Experimental API The experimental API is subject to change or removal without regard for backward compatibility. If is specified during configuration, the experimental API is omitted. The allocm, rallocm, sallocm, dallocm, and nallocm functions all have a flags argument that can be used to specify options. The functions only check the options that are contextually relevant. Use bitwise or (|) operations to specify one or more of the following: ALLOCM_LG_ALIGN(la) Align the memory allocation to start at an address that is a multiple of (1 << la). This macro does not validate that la is within the valid range. ALLOCM_ALIGN(a) Align the memory allocation to start at an address that is a multiple of a, where a is a power of two. This macro does not validate that a is a power of 2. ALLOCM_ZERO Initialize newly allocated memory to contain zero bytes. In the growing reallocation case, the real size prior to reallocation defines the boundary between untouched bytes and those that are initialized to contain zero bytes. If this option is absent, newly allocated memory is uninitialized. ALLOCM_NO_MOVE For reallocation, fail rather than moving the object. This constraint can apply to both growth and shrinkage. ALLOCM_ARENA(a) Use the arena specified by the index a. This macro does not validate that a specifies an arena in the valid range. The allocm function allocates at least size bytes of memory, sets *ptr to the base address of the allocation, and sets *rsize to the real size of the allocation if rsize is not NULL. Behavior is undefined if size is 0. The rallocm function resizes the allocation at *ptr to be at least size bytes, sets *ptr to the base address of the allocation if it moved, and sets *rsize to the real size of the allocation if rsize is not NULL. If extra is non-zero, an attempt is made to resize the allocation to be at least size + extra) bytes, though inability to allocate the extra byte(s) will not by itself result in failure. Behavior is undefined if size is 0, or if (size + extra > SIZE_T_MAX). The sallocm function sets *rsize to the real size of the allocation. The dallocm function causes the memory referenced by ptr to be made available for future allocations. The nallocm function allocates no memory, but it performs the same size computation as the allocm function, and if rsize is not NULL it sets *rsize to the real size of the allocation that would result from the equivalent allocm function call. Behavior is undefined if size is 0. TUNING Once, when the first call is made to one of the memory allocation routines, the allocator initializes its internals based in part on various options that can be specified at compile- or run-time. The string pointed to by the global variable malloc_conf, the “name” of the file referenced by the symbolic link named /etc/malloc.conf, and the value of the environment variable MALLOC_CONF, will be interpreted, in that order, from left to right as options. An options string is a comma-separated list of option:value pairs. There is one key corresponding to each opt.* mallctl (see the section for options documentation). For example, abort:true,narenas:1 sets the opt.abort and opt.narenas options. Some options have boolean values (true/false), others have integer values (base 8, 10, or 16, depending on prefix), and yet others have raw string values. IMPLEMENTATION NOTES Traditionally, allocators have used sbrk 2 to obtain memory, which is suboptimal for several reasons, including race conditions, increased fragmentation, and artificial limitations on maximum usable memory. If is specified during configuration, this allocator uses both mmap 2 and sbrk 2, in that order of preference; otherwise only mmap 2 is used. This allocator uses multiple arenas in order to reduce lock contention for threaded programs on multi-processor systems. This works well with regard to threading scalability, but incurs some costs. There is a small fixed per-arena overhead, and additionally, arenas manage memory completely independently of each other, which means a small fixed increase in overall memory fragmentation. These overheads are not generally an issue, given the number of arenas normally used. Note that using substantially more arenas than the default is not likely to improve performance, mainly due to reduced cache performance. However, it may make sense to reduce the number of arenas if an application does not make much use of the allocation functions. In addition to multiple arenas, unless is specified during configuration, this allocator supports thread-specific caching for small and large objects, in order to make it possible to completely avoid synchronization for most allocation requests. Such caching allows very fast allocation in the common case, but it increases memory usage and fragmentation, since a bounded number of objects can remain allocated in each thread cache. Memory is conceptually broken into equal-sized chunks, where the chunk size is a power of two that is greater than the page size. Chunks are always aligned to multiples of the chunk size. This alignment makes it possible to find metadata for user objects very quickly. User objects are broken into three categories according to size: small, large, and huge. Small objects are smaller than one page. Large objects are smaller than the chunk size. Huge objects are a multiple of the chunk size. Small and large objects are managed by arenas; huge objects are managed separately in a single data structure that is shared by all threads. Huge objects are used by applications infrequently enough that this single data structure is not a scalability issue. Each chunk that is managed by an arena tracks its contents as runs of contiguous pages (unused, backing a set of small objects, or backing one large object). The combination of chunk alignment and chunk page maps makes it possible to determine all metadata regarding small and large allocations in constant time. Small objects are managed in groups by page runs. Each run maintains a frontier and free list to track which regions are in use. Allocation requests that are no more than half the quantum (8 or 16, depending on architecture) are rounded up to the nearest power of two that is at least sizeof(double). All other small object size classes are multiples of the quantum, spaced such that internal fragmentation is limited to approximately 25% for all but the smallest size classes. Allocation requests that are larger than the maximum small size class, but small enough to fit in an arena-managed chunk (see the opt.lg_chunk option), are rounded up to the nearest run size. Allocation requests that are too large to fit in an arena-managed chunk are rounded up to the nearest multiple of the chunk size. Allocations are packed tightly together, which can be an issue for multi-threaded applications. If you need to assure that allocations do not suffer from cacheline sharing, round your allocation requests up to the nearest multiple of the cacheline size, or specify cacheline alignment when allocating. Assuming 4 MiB chunks, 4 KiB pages, and a 16-byte quantum on a 64-bit system, the size classes in each category are as shown in . Size classes Category Spacing Size Small lg [8] 16 [16, 32, 48, ..., 128] 32 [160, 192, 224, 256] 64 [320, 384, 448, 512] 128 [640, 768, 896, 1024] 256 [1280, 1536, 1792, 2048] 512 [2560, 3072, 3584] Large 4 KiB [4 KiB, 8 KiB, 12 KiB, ..., 4072 KiB] Huge 4 MiB [4 MiB, 8 MiB, 12 MiB, ...]
MALLCTL NAMESPACE The following names are defined in the namespace accessible via the mallctl* functions. Value types are specified in parentheses, their readable/writable statuses are encoded as rw, r-, -w, or --, and required build configuration flags follow, if any. A name element encoded as <i> or <j> indicates an integer component, where the integer varies from 0 to some upper value that must be determined via introspection. In the case of stats.arenas.<i>.*, <i> equal to arenas.narenas can be used to access the summation of statistics from all arenas. Take special note of the epoch mallctl, which controls refreshing of cached dynamic statistics. version (const char *) r- Return the jemalloc version string. epoch (uint64_t) rw If a value is passed in, refresh the data from which the mallctl* functions report values, and increment the epoch. Return the current epoch. This is useful for detecting whether another thread caused a refresh. config.debug (bool) r- was specified during build configuration. config.dss (bool) r- was specified during build configuration. config.fill (bool) r- was specified during build configuration. config.lazy_lock (bool) r- was specified during build configuration. config.mremap (bool) r- was specified during build configuration. config.munmap (bool) r- was specified during build configuration. config.prof (bool) r- was specified during build configuration. config.prof_libgcc (bool) r- was not specified during build configuration. config.prof_libunwind (bool) r- was specified during build configuration. config.stats (bool) r- was specified during build configuration. config.tcache (bool) r- was not specified during build configuration. config.tls (bool) r- was not specified during build configuration. config.utrace (bool) r- was specified during build configuration. config.valgrind (bool) r- was specified during build configuration. config.xmalloc (bool) r- was specified during build configuration. opt.abort (bool) r- Abort-on-warning enabled/disabled. If true, most warnings are fatal. The process will call abort 3 in these cases. This option is disabled by default unless is specified during configuration, in which case it is enabled by default. opt.lg_chunk (size_t) r- Virtual memory chunk size (log base 2). The default chunk size is 4 MiB (2^22). opt.dss (const char *) r- dss (sbrk 2) allocation precedence as related to mmap 2 allocation. The following settings are supported: “disabled”, “primary”, and “secondary” (default). opt.narenas (size_t) r- Maximum number of arenas to use for automatic multiplexing of threads and arenas. The default is four times the number of CPUs, or one if there is a single CPU. opt.lg_dirty_mult (ssize_t) r- Per-arena minimum ratio (log base 2) of active to dirty pages. Some dirty unused pages may be allowed to accumulate, within the limit set by the ratio (or one chunk worth of dirty pages, whichever is greater), before informing the kernel about some of those pages via madvise 2 or a similar system call. This provides the kernel with sufficient information to recycle dirty pages if physical memory becomes scarce and the pages remain unused. The default minimum ratio is 8:1 (2^3:1); an option value of -1 will disable dirty page purging. opt.stats_print (bool) r- Enable/disable statistics printing at exit. If enabled, the malloc_stats_print function is called at program exit via an atexit 3 function. If is specified during configuration, this has the potential to cause deadlock for a multi-threaded process that exits while one or more threads are executing in the memory allocation functions. Therefore, this option should only be used with care; it is primarily intended as a performance tuning aid during application development. This option is disabled by default. opt.junk (bool) r- [] Junk filling enabled/disabled. If enabled, each byte of uninitialized allocated memory will be initialized to 0xa5. All deallocated memory will be initialized to 0x5a. This is intended for debugging and will impact performance negatively. This option is disabled by default unless is specified during configuration, in which case it is enabled by default unless running inside Valgrind. opt.quarantine (size_t) r- [] Per thread quarantine size in bytes. If non-zero, each thread maintains a FIFO object quarantine that stores up to the specified number of bytes of memory. The quarantined memory is not freed until it is released from quarantine, though it is immediately junk-filled if the opt.junk option is enabled. This feature is of particular use in combination with Valgrind, which can detect attempts to access quarantined objects. This is intended for debugging and will impact performance negatively. The default quarantine size is 0 unless running inside Valgrind, in which case the default is 16 MiB. opt.redzone (bool) r- [] Redzones enabled/disabled. If enabled, small allocations have redzones before and after them. Furthermore, if the opt.junk option is enabled, the redzones are checked for corruption during deallocation. However, the primary intended purpose of this feature is to be used in combination with Valgrind, which needs redzones in order to do effective buffer overflow/underflow detection. This option is intended for debugging and will impact performance negatively. This option is disabled by default unless running inside Valgrind. opt.zero (bool) r- [] Zero filling enabled/disabled. If enabled, each byte of uninitialized allocated memory will be initialized to 0. Note that this initialization only happens once for each byte, so realloc and rallocm calls do not zero memory that was previously allocated. This is intended for debugging and will impact performance negatively. This option is disabled by default. opt.utrace (bool) r- [] Allocation tracing based on utrace 2 enabled/disabled. This option is disabled by default. opt.valgrind (bool) r- [] Valgrind support enabled/disabled. This option is vestigal because jemalloc auto-detects whether it is running inside Valgrind. This option is disabled by default, unless running inside Valgrind. opt.xmalloc (bool) r- [] Abort-on-out-of-memory enabled/disabled. If enabled, rather than returning failure for any allocation function, display a diagnostic message on STDERR_FILENO and cause the program to drop core (using abort 3). If an application is designed to depend on this behavior, set the option at compile time by including the following in the source code: This option is disabled by default. opt.tcache (bool) r- [] Thread-specific caching enabled/disabled. When there are multiple threads, each thread uses a thread-specific cache for objects up to a certain size. Thread-specific caching allows many allocations to be satisfied without performing any thread synchronization, at the cost of increased memory use. See the opt.lg_tcache_max option for related tuning information. This option is enabled by default unless running inside Valgrind. opt.lg_tcache_max (size_t) r- [] Maximum size class (log base 2) to cache in the thread-specific cache. At a minimum, all small size classes are cached, and at a maximum all large size classes are cached. The default maximum is 32 KiB (2^15). opt.prof (bool) r- [] Memory profiling enabled/disabled. If enabled, profile memory allocation activity. See the opt.prof_active option for on-the-fly activation/deactivation. See the opt.lg_prof_sample option for probabilistic sampling control. See the opt.prof_accum option for control of cumulative sample reporting. See the opt.lg_prof_interval option for information on interval-triggered profile dumping, the opt.prof_gdump option for information on high-water-triggered profile dumping, and the opt.prof_final option for final profile dumping. Profile output is compatible with the included pprof Perl script, which originates from the gperftools package. opt.prof_prefix (const char *) r- [] Filename prefix for profile dumps. If the prefix is set to the empty string, no automatic dumps will occur; this is primarily useful for disabling the automatic final heap dump (which also disables leak reporting, if enabled). The default prefix is jeprof. opt.prof_active (bool) r- [] Profiling activated/deactivated. This is a secondary control mechanism that makes it possible to start the application with profiling enabled (see the opt.prof option) but inactive, then toggle profiling at any time during program execution with the prof.active mallctl. This option is enabled by default. opt.lg_prof_sample (ssize_t) r- [] Average interval (log base 2) between allocation samples, as measured in bytes of allocation activity. Increasing the sampling interval decreases profile fidelity, but also decreases the computational overhead. The default sample interval is 512 KiB (2^19 B). opt.prof_accum (bool) r- [] Reporting of cumulative object/byte counts in profile dumps enabled/disabled. If this option is enabled, every unique backtrace must be stored for the duration of execution. Depending on the application, this can impose a large memory overhead, and the cumulative counts are not always of interest. This option is disabled by default. opt.lg_prof_interval (ssize_t) r- [] Average interval (log base 2) between memory profile dumps, as measured in bytes of allocation activity. The actual interval between dumps may be sporadic because decentralized allocation counters are used to avoid synchronization bottlenecks. Profiles are dumped to files named according to the pattern <prefix>.<pid>.<seq>.i<iseq>.heap, where <prefix> is controlled by the opt.prof_prefix option. By default, interval-triggered profile dumping is disabled (encoded as -1). opt.prof_gdump (bool) r- [] Trigger a memory profile dump every time the total virtual memory exceeds the previous maximum. Profiles are dumped to files named according to the pattern <prefix>.<pid>.<seq>.u<useq>.heap, where <prefix> is controlled by the opt.prof_prefix option. This option is disabled by default. opt.prof_final (bool) r- [] Use an atexit 3 function to dump final memory usage to a file named according to the pattern <prefix>.<pid>.<seq>.f.heap, where <prefix> is controlled by the opt.prof_prefix option. This option is enabled by default. opt.prof_leak (bool) r- [] Leak reporting enabled/disabled. If enabled, use an atexit 3 function to report memory leaks detected by allocation sampling. See the opt.prof option for information on analyzing heap profile output. This option is disabled by default. thread.arena (unsigned) rw Get or set the arena associated with the calling thread. If the specified arena was not initialized beforehand (see the arenas.initialized mallctl), it will be automatically initialized as a side effect of calling this interface. thread.allocated (uint64_t) r- [] Get the total number of bytes ever allocated by the calling thread. This counter has the potential to wrap around; it is up to the application to appropriately interpret the counter in such cases. thread.allocatedp (uint64_t *) r- [] Get a pointer to the the value that is returned by the thread.allocated mallctl. This is useful for avoiding the overhead of repeated mallctl* calls. thread.deallocated (uint64_t) r- [] Get the total number of bytes ever deallocated by the calling thread. This counter has the potential to wrap around; it is up to the application to appropriately interpret the counter in such cases. thread.deallocatedp (uint64_t *) r- [] Get a pointer to the the value that is returned by the thread.deallocated mallctl. This is useful for avoiding the overhead of repeated mallctl* calls. thread.tcache.enabled (bool) rw [] Enable/disable calling thread's tcache. The tcache is implicitly flushed as a side effect of becoming disabled (see thread.tcache.flush). thread.tcache.flush (void) -- [] Flush calling thread's tcache. This interface releases all cached objects and internal data structures associated with the calling thread's thread-specific cache. Ordinarily, this interface need not be called, since automatic periodic incremental garbage collection occurs, and the thread cache is automatically discarded when a thread exits. However, garbage collection is triggered by allocation activity, so it is possible for a thread that stops allocating/deallocating to retain its cache indefinitely, in which case the developer may find manual flushing useful. arena.<i>.purge (unsigned) -- Purge unused dirty pages for arena <i>, or for all arenas if <i> equals arenas.narenas. arena.<i>.dss (const char *) rw Set the precedence of dss allocation as related to mmap allocation for arena <i>, or for all arenas if <i> equals arenas.narenas. See opt.dss for supported settings. arenas.narenas (unsigned) r- Current limit on number of arenas. arenas.initialized (bool *) r- An array of arenas.narenas booleans. Each boolean indicates whether the corresponding arena is initialized. arenas.quantum (size_t) r- Quantum size. arenas.page (size_t) r- Page size. arenas.tcache_max (size_t) r- [] Maximum thread-cached size class. arenas.nbins (unsigned) r- Number of bin size classes. arenas.nhbins (unsigned) r- [] Total number of thread cache bin size classes. arenas.bin.<i>.size (size_t) r- Maximum size supported by size class. arenas.bin.<i>.nregs (uint32_t) r- Number of regions per page run. arenas.bin.<i>.run_size (size_t) r- Number of bytes per page run. arenas.nlruns (size_t) r- Total number of large size classes. arenas.lrun.<i>.size (size_t) r- Maximum size supported by this large size class. arenas.purge (unsigned) -w Purge unused dirty pages for the specified arena, or for all arenas if none is specified. arenas.extend (unsigned) r- Extend the array of arenas by appending a new arena, and returning the new arena index. prof.active (bool) rw [] Control whether sampling is currently active. See the opt.prof_active option for additional information. prof.dump (const char *) -w [] Dump a memory profile to the specified file, or if NULL is specified, to a file according to the pattern <prefix>.<pid>.<seq>.m<mseq>.heap, where <prefix> is controlled by the opt.prof_prefix option. prof.interval (uint64_t) r- [] Average number of bytes allocated between inverval-based profile dumps. See the opt.lg_prof_interval option for additional information. stats.cactive (size_t *) r- [] Pointer to a counter that contains an approximate count of the current number of bytes in active pages. The estimate may be high, but never low, because each arena rounds up to the nearest multiple of the chunk size when computing its contribution to the counter. Note that the epoch mallctl has no bearing on this counter. Furthermore, counter consistency is maintained via atomic operations, so it is necessary to use an atomic operation in order to guarantee a consistent read when dereferencing the pointer. stats.allocated (size_t) r- [] Total number of bytes allocated by the application. stats.active (size_t) r- [] Total number of bytes in active pages allocated by the application. This is a multiple of the page size, and greater than or equal to stats.allocated. This does not include stats.arenas.<i>.pdirty and pages entirely devoted to allocator metadata. stats.mapped (size_t) r- [] Total number of bytes in chunks mapped on behalf of the application. This is a multiple of the chunk size, and is at least as large as stats.active. This does not include inactive chunks. stats.chunks.current (size_t) r- [] Total number of chunks actively mapped on behalf of the application. This does not include inactive chunks. stats.chunks.total (uint64_t) r- [] Cumulative number of chunks allocated. stats.chunks.high (size_t) r- [] Maximum number of active chunks at any time thus far. stats.huge.allocated (size_t) r- [] Number of bytes currently allocated by huge objects. stats.huge.nmalloc (uint64_t) r- [] Cumulative number of huge allocation requests. stats.huge.ndalloc (uint64_t) r- [] Cumulative number of huge deallocation requests. stats.arenas.<i>.dss (const char *) r- dss (sbrk 2) allocation precedence as related to mmap 2 allocation. See opt.dss for details. stats.arenas.<i>.nthreads (unsigned) r- Number of threads currently assigned to arena. stats.arenas.<i>.pactive (size_t) r- Number of pages in active runs. stats.arenas.<i>.pdirty (size_t) r- Number of pages within unused runs that are potentially dirty, and for which madvise... MADV_DONTNEED or similar has not been called. stats.arenas.<i>.mapped (size_t) r- [] Number of mapped bytes. stats.arenas.<i>.npurge (uint64_t) r- [] Number of dirty page purge sweeps performed. stats.arenas.<i>.nmadvise (uint64_t) r- [] Number of madvise... MADV_DONTNEED or similar calls made to purge dirty pages. stats.arenas.<i>.npurged (uint64_t) r- [] Number of pages purged. stats.arenas.<i>.small.allocated (size_t) r- [] Number of bytes currently allocated by small objects. stats.arenas.<i>.small.nmalloc (uint64_t) r- [] Cumulative number of allocation requests served by small bins. stats.arenas.<i>.small.ndalloc (uint64_t) r- [] Cumulative number of small objects returned to bins. stats.arenas.<i>.small.nrequests (uint64_t) r- [] Cumulative number of small allocation requests. stats.arenas.<i>.large.allocated (size_t) r- [] Number of bytes currently allocated by large objects. stats.arenas.<i>.large.nmalloc (uint64_t) r- [] Cumulative number of large allocation requests served directly by the arena. stats.arenas.<i>.large.ndalloc (uint64_t) r- [] Cumulative number of large deallocation requests served directly by the arena. stats.arenas.<i>.large.nrequests (uint64_t) r- [] Cumulative number of large allocation requests. stats.arenas.<i>.bins.<j>.allocated (size_t) r- [] Current number of bytes allocated by bin. stats.arenas.<i>.bins.<j>.nmalloc (uint64_t) r- [] Cumulative number of allocations served by bin. stats.arenas.<i>.bins.<j>.ndalloc (uint64_t) r- [] Cumulative number of allocations returned to bin. stats.arenas.<i>.bins.<j>.nrequests (uint64_t) r- [] Cumulative number of allocation requests. stats.arenas.<i>.bins.<j>.nfills (uint64_t) r- [ ] Cumulative number of tcache fills. stats.arenas.<i>.bins.<j>.nflushes (uint64_t) r- [ ] Cumulative number of tcache flushes. stats.arenas.<i>.bins.<j>.nruns (uint64_t) r- [] Cumulative number of runs created. stats.arenas.<i>.bins.<j>.nreruns (uint64_t) r- [] Cumulative number of times the current run from which to allocate changed. stats.arenas.<i>.bins.<j>.curruns (size_t) r- [] Current number of runs. stats.arenas.<i>.lruns.<j>.nmalloc (uint64_t) r- [] Cumulative number of allocation requests for this size class served directly by the arena. stats.arenas.<i>.lruns.<j>.ndalloc (uint64_t) r- [] Cumulative number of deallocation requests for this size class served directly by the arena. stats.arenas.<i>.lruns.<j>.nrequests (uint64_t) r- [] Cumulative number of allocation requests for this size class. stats.arenas.<i>.lruns.<j>.curruns (size_t) r- [] Current number of runs for this size class. DEBUGGING MALLOC PROBLEMS When debugging, it is a good idea to configure/build jemalloc with the and options, and recompile the program with suitable options and symbols for debugger support. When so configured, jemalloc incorporates a wide variety of run-time assertions that catch application errors such as double-free, write-after-free, etc. Programs often accidentally depend on “uninitialized” memory actually being filled with zero bytes. Junk filling (see the opt.junk option) tends to expose such bugs in the form of obviously incorrect results and/or coredumps. Conversely, zero filling (see the opt.zero option) eliminates the symptoms of such bugs. Between these two options, it is usually possible to quickly detect, diagnose, and eliminate such bugs. This implementation does not provide much detail about the problems it detects, because the performance impact for storing such information would be prohibitive. However, jemalloc does integrate with the most excellent Valgrind tool if the configuration option is enabled. DIAGNOSTIC MESSAGES If any of the memory allocation/deallocation functions detect an error or warning condition, a message will be printed to file descriptor STDERR_FILENO. Errors will result in the process dumping core. If the opt.abort option is set, most warnings are treated as errors. The malloc_message variable allows the programmer to override the function which emits the text strings forming the errors and warnings if for some reason the STDERR_FILENO file descriptor is not suitable for this. malloc_message takes the cbopaque pointer argument that is NULL unless overridden by the arguments in a call to malloc_stats_print, followed by a string pointer. Please note that doing anything which tries to allocate memory in this function is likely to result in a crash or deadlock. All messages are prefixed by “<jemalloc>: ”. RETURN VALUES Standard API The malloc and calloc functions return a pointer to the allocated memory if successful; otherwise a NULL pointer is returned and errno is set to ENOMEM. The posix_memalign function returns the value 0 if successful; otherwise it returns an error value. The posix_memalign function will fail if: EINVAL The alignment parameter is not a power of 2 at least as large as sizeof(void *). ENOMEM Memory allocation error. The aligned_alloc function returns a pointer to the allocated memory if successful; otherwise a NULL pointer is returned and errno is set. The aligned_alloc function will fail if: EINVAL The alignment parameter is not a power of 2. ENOMEM Memory allocation error. The realloc function returns a pointer, possibly identical to ptr, to the allocated memory if successful; otherwise a NULL pointer is returned, and errno is set to ENOMEM if the error was the result of an allocation failure. The realloc function always leaves the original buffer intact when an error occurs. The free function returns no value. Non-standard API The malloc_usable_size function returns the usable size of the allocation pointed to by ptr. The mallctl, mallctlnametomib, and mallctlbymib functions return 0 on success; otherwise they return an error value. The functions will fail if: EINVAL newp is not NULL, and newlen is too large or too small. Alternatively, *oldlenp is too large or too small; in this case as much data as possible are read despite the error. ENOMEM *oldlenp is too short to hold the requested value. ENOENT name or mib specifies an unknown/invalid value. EPERM Attempt to read or write void value, or attempt to write read-only value. EAGAIN A memory allocation failure occurred. EFAULT An interface with side effects failed in some way not directly related to mallctl* read/write processing. Experimental API The allocm, rallocm, sallocm, dallocm, and nallocm functions return ALLOCM_SUCCESS on success; otherwise they return an error value. The allocm, rallocm, and nallocm functions will fail if: ALLOCM_ERR_OOM Out of memory. Insufficient contiguous memory was available to service the allocation request. The allocm function additionally sets *ptr to NULL, whereas the rallocm function leaves *ptr unmodified. The rallocm function will also fail if: ALLOCM_ERR_NOT_MOVED ALLOCM_NO_MOVE was specified, but the reallocation request could not be serviced without moving the object. ENVIRONMENT The following environment variable affects the execution of the allocation functions: MALLOC_CONF If the environment variable MALLOC_CONF is set, the characters it contains will be interpreted as options. EXAMPLES To dump core whenever a problem occurs: ln -s 'abort:true' /etc/malloc.conf To specify in the source a chunk size that is 16 MiB: SEE ALSO madvise 2, mmap 2, sbrk 2, utrace 2, alloca 3, atexit 3, getpagesize 3 STANDARDS The malloc, calloc, realloc, and free functions conform to ISO/IEC 9899:1990 (“ISO C90”). The posix_memalign function conforms to IEEE Std 1003.1-2001 (“POSIX.1”). redis-2.6.16/deps/jemalloc/doc/manpages.xsl.in000066400000000000000000000003171220734223100211270ustar00rootroot00000000000000 redis-2.6.16/deps/jemalloc/doc/stylesheet.xsl000066400000000000000000000004571220734223100211250ustar00rootroot00000000000000 ansi "" redis-2.6.16/deps/jemalloc/include/000077500000000000000000000000001220734223100170545ustar00rootroot00000000000000redis-2.6.16/deps/jemalloc/include/jemalloc/000077500000000000000000000000001220734223100206425ustar00rootroot00000000000000redis-2.6.16/deps/jemalloc/include/jemalloc/internal/000077500000000000000000000000001220734223100224565ustar00rootroot00000000000000redis-2.6.16/deps/jemalloc/include/jemalloc/internal/arena.h000066400000000000000000000740101220734223100237170ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES /* * RUN_MAX_OVRHD indicates maximum desired run header overhead. Runs are sized * as small as possible such that this setting is still honored, without * violating other constraints. The goal is to make runs as small as possible * without exceeding a per run external fragmentation threshold. * * We use binary fixed point math for overhead computations, where the binary * point is implicitly RUN_BFP bits to the left. * * Note that it is possible to set RUN_MAX_OVRHD low enough that it cannot be * honored for some/all object sizes, since when heap profiling is enabled * there is one pointer of header overhead per object (plus a constant). This * constraint is relaxed (ignored) for runs that are so small that the * per-region overhead is greater than: * * (RUN_MAX_OVRHD / (reg_interval << (3+RUN_BFP)) */ #define RUN_BFP 12 /* \/ Implicit binary fixed point. */ #define RUN_MAX_OVRHD 0x0000003dU #define RUN_MAX_OVRHD_RELAX 0x00001800U /* Maximum number of regions in one run. */ #define LG_RUN_MAXREGS 11 #define RUN_MAXREGS (1U << LG_RUN_MAXREGS) /* * Minimum redzone size. Redzones may be larger than this if necessary to * preserve region alignment. */ #define REDZONE_MINSIZE 16 /* * The minimum ratio of active:dirty pages per arena is computed as: * * (nactive >> opt_lg_dirty_mult) >= ndirty * * So, supposing that opt_lg_dirty_mult is 3, there can be no less than 8 times * as many active pages as dirty pages. */ #define LG_DIRTY_MULT_DEFAULT 3 typedef struct arena_chunk_map_s arena_chunk_map_t; typedef struct arena_chunk_s arena_chunk_t; typedef struct arena_run_s arena_run_t; typedef struct arena_bin_info_s arena_bin_info_t; typedef struct arena_bin_s arena_bin_t; typedef struct arena_s arena_t; #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS /* Each element of the chunk map corresponds to one page within the chunk. */ struct arena_chunk_map_s { #ifndef JEMALLOC_PROF /* * Overlay prof_ctx in order to allow it to be referenced by dead code. * Such antics aren't warranted for per arena data structures, but * chunk map overhead accounts for a percentage of memory, rather than * being just a fixed cost. */ union { #endif union { /* * Linkage for run trees. There are two disjoint uses: * * 1) arena_t's runs_avail tree. * 2) arena_run_t conceptually uses this linkage for in-use * non-full runs, rather than directly embedding linkage. */ rb_node(arena_chunk_map_t) rb_link; /* * List of runs currently in purgatory. arena_chunk_purge() * temporarily allocates runs that contain dirty pages while * purging, so that other threads cannot use the runs while the * purging thread is operating without the arena lock held. */ ql_elm(arena_chunk_map_t) ql_link; } u; /* Profile counters, used for large object runs. */ prof_ctx_t *prof_ctx; #ifndef JEMALLOC_PROF }; /* union { ... }; */ #endif /* * Run address (or size) and various flags are stored together. The bit * layout looks like (assuming 32-bit system): * * ???????? ???????? ????nnnn nnnndula * * ? : Unallocated: Run address for first/last pages, unset for internal * pages. * Small: Run page offset. * Large: Run size for first page, unset for trailing pages. * n : binind for small size class, BININD_INVALID for large size class. * d : dirty? * u : unzeroed? * l : large? * a : allocated? * * Following are example bit patterns for the three types of runs. * * p : run page offset * s : run size * n : binind for size class; large objects set these to BININD_INVALID * except for promoted allocations (see prof_promote) * x : don't care * - : 0 * + : 1 * [DULA] : bit set * [dula] : bit unset * * Unallocated (clean): * ssssssss ssssssss ssss++++ ++++du-a * xxxxxxxx xxxxxxxx xxxxxxxx xxxx-Uxx * ssssssss ssssssss ssss++++ ++++dU-a * * Unallocated (dirty): * ssssssss ssssssss ssss++++ ++++D--a * xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx * ssssssss ssssssss ssss++++ ++++D--a * * Small: * pppppppp pppppppp ppppnnnn nnnnd--A * pppppppp pppppppp ppppnnnn nnnn---A * pppppppp pppppppp ppppnnnn nnnnd--A * * Large: * ssssssss ssssssss ssss++++ ++++D-LA * xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx * -------- -------- ----++++ ++++D-LA * * Large (sampled, size <= PAGE): * ssssssss ssssssss ssssnnnn nnnnD-LA * * Large (not sampled, size == PAGE): * ssssssss ssssssss ssss++++ ++++D-LA */ size_t bits; #define CHUNK_MAP_BININD_SHIFT 4 #define BININD_INVALID ((size_t)0xffU) /* CHUNK_MAP_BININD_MASK == (BININD_INVALID << CHUNK_MAP_BININD_SHIFT) */ #define CHUNK_MAP_BININD_MASK ((size_t)0xff0U) #define CHUNK_MAP_BININD_INVALID CHUNK_MAP_BININD_MASK #define CHUNK_MAP_FLAGS_MASK ((size_t)0xcU) #define CHUNK_MAP_DIRTY ((size_t)0x8U) #define CHUNK_MAP_UNZEROED ((size_t)0x4U) #define CHUNK_MAP_LARGE ((size_t)0x2U) #define CHUNK_MAP_ALLOCATED ((size_t)0x1U) #define CHUNK_MAP_KEY CHUNK_MAP_ALLOCATED }; typedef rb_tree(arena_chunk_map_t) arena_avail_tree_t; typedef rb_tree(arena_chunk_map_t) arena_run_tree_t; /* Arena chunk header. */ struct arena_chunk_s { /* Arena that owns the chunk. */ arena_t *arena; /* Linkage for tree of arena chunks that contain dirty runs. */ rb_node(arena_chunk_t) dirty_link; /* Number of dirty pages. */ size_t ndirty; /* Number of available runs. */ size_t nruns_avail; /* * Number of available run adjacencies. Clean and dirty available runs * are not coalesced, which causes virtual memory fragmentation. The * ratio of (nruns_avail-nruns_adjac):nruns_adjac is used for tracking * this fragmentation. * */ size_t nruns_adjac; /* * Map of pages within chunk that keeps track of free/large/small. The * first map_bias entries are omitted, since the chunk header does not * need to be tracked in the map. This omission saves a header page * for common chunk sizes (e.g. 4 MiB). */ arena_chunk_map_t map[1]; /* Dynamically sized. */ }; typedef rb_tree(arena_chunk_t) arena_chunk_tree_t; struct arena_run_s { /* Bin this run is associated with. */ arena_bin_t *bin; /* Index of next region that has never been allocated, or nregs. */ uint32_t nextind; /* Number of free regions in run. */ unsigned nfree; }; /* * Read-only information associated with each element of arena_t's bins array * is stored separately, partly to reduce memory usage (only one copy, rather * than one per arena), but mainly to avoid false cacheline sharing. * * Each run has the following layout: * * /--------------------\ * | arena_run_t header | * | ... | * bitmap_offset | bitmap | * | ... | * ctx0_offset | ctx map | * | ... | * |--------------------| * | redzone | * reg0_offset | region 0 | * | redzone | * |--------------------| \ * | redzone | | * | region 1 | > reg_interval * | redzone | / * |--------------------| * | ... | * | ... | * | ... | * |--------------------| * | redzone | * | region nregs-1 | * | redzone | * |--------------------| * | alignment pad? | * \--------------------/ * * reg_interval has at least the same minimum alignment as reg_size; this * preserves the alignment constraint that sa2u() depends on. Alignment pad is * either 0 or redzone_size; it is present only if needed to align reg0_offset. */ struct arena_bin_info_s { /* Size of regions in a run for this bin's size class. */ size_t reg_size; /* Redzone size. */ size_t redzone_size; /* Interval between regions (reg_size + (redzone_size << 1)). */ size_t reg_interval; /* Total size of a run for this bin's size class. */ size_t run_size; /* Total number of regions in a run for this bin's size class. */ uint32_t nregs; /* * Offset of first bitmap_t element in a run header for this bin's size * class. */ uint32_t bitmap_offset; /* * Metadata used to manipulate bitmaps for runs associated with this * bin. */ bitmap_info_t bitmap_info; /* * Offset of first (prof_ctx_t *) in a run header for this bin's size * class, or 0 if (config_prof == false || opt_prof == false). */ uint32_t ctx0_offset; /* Offset of first region in a run for this bin's size class. */ uint32_t reg0_offset; }; struct arena_bin_s { /* * All operations on runcur, runs, and stats require that lock be * locked. Run allocation/deallocation are protected by the arena lock, * which may be acquired while holding one or more bin locks, but not * vise versa. */ malloc_mutex_t lock; /* * Current run being used to service allocations of this bin's size * class. */ arena_run_t *runcur; /* * Tree of non-full runs. This tree is used when looking for an * existing run when runcur is no longer usable. We choose the * non-full run that is lowest in memory; this policy tends to keep * objects packed well, and it can also help reduce the number of * almost-empty chunks. */ arena_run_tree_t runs; /* Bin statistics. */ malloc_bin_stats_t stats; }; struct arena_s { /* This arena's index within the arenas array. */ unsigned ind; /* * Number of threads currently assigned to this arena. This field is * protected by arenas_lock. */ unsigned nthreads; /* * There are three classes of arena operations from a locking * perspective: * 1) Thread asssignment (modifies nthreads) is protected by * arenas_lock. * 2) Bin-related operations are protected by bin locks. * 3) Chunk- and run-related operations are protected by this mutex. */ malloc_mutex_t lock; arena_stats_t stats; /* * List of tcaches for extant threads associated with this arena. * Stats from these are merged incrementally, and at exit. */ ql_head(tcache_t) tcache_ql; uint64_t prof_accumbytes; dss_prec_t dss_prec; /* Tree of dirty-page-containing chunks this arena manages. */ arena_chunk_tree_t chunks_dirty; /* * In order to avoid rapid chunk allocation/deallocation when an arena * oscillates right on the cusp of needing a new chunk, cache the most * recently freed chunk. The spare is left in the arena's chunk trees * until it is deleted. * * There is one spare chunk per arena, rather than one spare total, in * order to avoid interactions between multiple threads that could make * a single spare inadequate. */ arena_chunk_t *spare; /* Number of pages in active runs. */ size_t nactive; /* * Current count of pages within unused runs that are potentially * dirty, and for which madvise(... MADV_DONTNEED) has not been called. * By tracking this, we can institute a limit on how much dirty unused * memory is mapped for each arena. */ size_t ndirty; /* * Approximate number of pages being purged. It is possible for * multiple threads to purge dirty pages concurrently, and they use * npurgatory to indicate the total number of pages all threads are * attempting to purge. */ size_t npurgatory; /* * Size/address-ordered trees of this arena's available runs. The trees * are used for first-best-fit run allocation. */ arena_avail_tree_t runs_avail; /* bins is used to store trees of free regions. */ arena_bin_t bins[NBINS]; }; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS extern ssize_t opt_lg_dirty_mult; /* * small_size2bin is a compact lookup table that rounds request sizes up to * size classes. In order to reduce cache footprint, the table is compressed, * and all accesses are via the SMALL_SIZE2BIN macro. */ extern uint8_t const small_size2bin[]; #define SMALL_SIZE2BIN(s) (small_size2bin[(s-1) >> LG_TINY_MIN]) extern arena_bin_info_t arena_bin_info[NBINS]; /* Number of large size classes. */ #define nlclasses (chunk_npages - map_bias) void arena_purge_all(arena_t *arena); void arena_prof_accum(arena_t *arena, uint64_t accumbytes); void arena_tcache_fill_small(arena_t *arena, tcache_bin_t *tbin, size_t binind, uint64_t prof_accumbytes); void arena_alloc_junk_small(void *ptr, arena_bin_info_t *bin_info, bool zero); void arena_dalloc_junk_small(void *ptr, arena_bin_info_t *bin_info); void *arena_malloc_small(arena_t *arena, size_t size, bool zero); void *arena_malloc_large(arena_t *arena, size_t size, bool zero); void *arena_palloc(arena_t *arena, size_t size, size_t alignment, bool zero); void arena_prof_promoted(const void *ptr, size_t size); void arena_dalloc_bin_locked(arena_t *arena, arena_chunk_t *chunk, void *ptr, arena_chunk_map_t *mapelm); void arena_dalloc_bin(arena_t *arena, arena_chunk_t *chunk, void *ptr, size_t pageind, arena_chunk_map_t *mapelm); void arena_dalloc_small(arena_t *arena, arena_chunk_t *chunk, void *ptr, size_t pageind); void arena_dalloc_large_locked(arena_t *arena, arena_chunk_t *chunk, void *ptr); void arena_dalloc_large(arena_t *arena, arena_chunk_t *chunk, void *ptr); void *arena_ralloc_no_move(void *ptr, size_t oldsize, size_t size, size_t extra, bool zero); void *arena_ralloc(arena_t *arena, void *ptr, size_t oldsize, size_t size, size_t extra, size_t alignment, bool zero, bool try_tcache_alloc, bool try_tcache_dalloc); dss_prec_t arena_dss_prec_get(arena_t *arena); void arena_dss_prec_set(arena_t *arena, dss_prec_t dss_prec); void arena_stats_merge(arena_t *arena, const char **dss, size_t *nactive, size_t *ndirty, arena_stats_t *astats, malloc_bin_stats_t *bstats, malloc_large_stats_t *lstats); bool arena_new(arena_t *arena, unsigned ind); void arena_boot(void); void arena_prefork(arena_t *arena); void arena_postfork_parent(arena_t *arena); void arena_postfork_child(arena_t *arena); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #ifndef JEMALLOC_ENABLE_INLINE arena_chunk_map_t *arena_mapp_get(arena_chunk_t *chunk, size_t pageind); size_t *arena_mapbitsp_get(arena_chunk_t *chunk, size_t pageind); size_t arena_mapbits_get(arena_chunk_t *chunk, size_t pageind); size_t arena_mapbits_unallocated_size_get(arena_chunk_t *chunk, size_t pageind); size_t arena_mapbits_large_size_get(arena_chunk_t *chunk, size_t pageind); size_t arena_mapbits_small_runind_get(arena_chunk_t *chunk, size_t pageind); size_t arena_mapbits_binind_get(arena_chunk_t *chunk, size_t pageind); size_t arena_mapbits_dirty_get(arena_chunk_t *chunk, size_t pageind); size_t arena_mapbits_unzeroed_get(arena_chunk_t *chunk, size_t pageind); size_t arena_mapbits_large_get(arena_chunk_t *chunk, size_t pageind); size_t arena_mapbits_allocated_get(arena_chunk_t *chunk, size_t pageind); void arena_mapbits_unallocated_set(arena_chunk_t *chunk, size_t pageind, size_t size, size_t flags); void arena_mapbits_unallocated_size_set(arena_chunk_t *chunk, size_t pageind, size_t size); void arena_mapbits_large_set(arena_chunk_t *chunk, size_t pageind, size_t size, size_t flags); void arena_mapbits_large_binind_set(arena_chunk_t *chunk, size_t pageind, size_t binind); void arena_mapbits_small_set(arena_chunk_t *chunk, size_t pageind, size_t runind, size_t binind, size_t flags); void arena_mapbits_unzeroed_set(arena_chunk_t *chunk, size_t pageind, size_t unzeroed); size_t arena_ptr_small_binind_get(const void *ptr, size_t mapbits); size_t arena_bin_index(arena_t *arena, arena_bin_t *bin); unsigned arena_run_regind(arena_run_t *run, arena_bin_info_t *bin_info, const void *ptr); prof_ctx_t *arena_prof_ctx_get(const void *ptr); void arena_prof_ctx_set(const void *ptr, prof_ctx_t *ctx); void *arena_malloc(arena_t *arena, size_t size, bool zero, bool try_tcache); size_t arena_salloc(const void *ptr, bool demote); void arena_dalloc(arena_t *arena, arena_chunk_t *chunk, void *ptr, bool try_tcache); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_ARENA_C_)) # ifdef JEMALLOC_ARENA_INLINE_A JEMALLOC_INLINE arena_chunk_map_t * arena_mapp_get(arena_chunk_t *chunk, size_t pageind) { assert(pageind >= map_bias); assert(pageind < chunk_npages); return (&chunk->map[pageind-map_bias]); } JEMALLOC_INLINE size_t * arena_mapbitsp_get(arena_chunk_t *chunk, size_t pageind) { return (&arena_mapp_get(chunk, pageind)->bits); } JEMALLOC_INLINE size_t arena_mapbits_get(arena_chunk_t *chunk, size_t pageind) { return (*arena_mapbitsp_get(chunk, pageind)); } JEMALLOC_INLINE size_t arena_mapbits_unallocated_size_get(arena_chunk_t *chunk, size_t pageind) { size_t mapbits; mapbits = arena_mapbits_get(chunk, pageind); assert((mapbits & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) == 0); return (mapbits & ~PAGE_MASK); } JEMALLOC_INLINE size_t arena_mapbits_large_size_get(arena_chunk_t *chunk, size_t pageind) { size_t mapbits; mapbits = arena_mapbits_get(chunk, pageind); assert((mapbits & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) == (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)); return (mapbits & ~PAGE_MASK); } JEMALLOC_INLINE size_t arena_mapbits_small_runind_get(arena_chunk_t *chunk, size_t pageind) { size_t mapbits; mapbits = arena_mapbits_get(chunk, pageind); assert((mapbits & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) == CHUNK_MAP_ALLOCATED); return (mapbits >> LG_PAGE); } JEMALLOC_INLINE size_t arena_mapbits_binind_get(arena_chunk_t *chunk, size_t pageind) { size_t mapbits; size_t binind; mapbits = arena_mapbits_get(chunk, pageind); binind = (mapbits & CHUNK_MAP_BININD_MASK) >> CHUNK_MAP_BININD_SHIFT; assert(binind < NBINS || binind == BININD_INVALID); return (binind); } JEMALLOC_INLINE size_t arena_mapbits_dirty_get(arena_chunk_t *chunk, size_t pageind) { size_t mapbits; mapbits = arena_mapbits_get(chunk, pageind); return (mapbits & CHUNK_MAP_DIRTY); } JEMALLOC_INLINE size_t arena_mapbits_unzeroed_get(arena_chunk_t *chunk, size_t pageind) { size_t mapbits; mapbits = arena_mapbits_get(chunk, pageind); return (mapbits & CHUNK_MAP_UNZEROED); } JEMALLOC_INLINE size_t arena_mapbits_large_get(arena_chunk_t *chunk, size_t pageind) { size_t mapbits; mapbits = arena_mapbits_get(chunk, pageind); return (mapbits & CHUNK_MAP_LARGE); } JEMALLOC_INLINE size_t arena_mapbits_allocated_get(arena_chunk_t *chunk, size_t pageind) { size_t mapbits; mapbits = arena_mapbits_get(chunk, pageind); return (mapbits & CHUNK_MAP_ALLOCATED); } JEMALLOC_INLINE void arena_mapbits_unallocated_set(arena_chunk_t *chunk, size_t pageind, size_t size, size_t flags) { size_t *mapbitsp; mapbitsp = arena_mapbitsp_get(chunk, pageind); assert((size & PAGE_MASK) == 0); assert((flags & ~CHUNK_MAP_FLAGS_MASK) == 0); assert((flags & (CHUNK_MAP_DIRTY|CHUNK_MAP_UNZEROED)) == flags); *mapbitsp = size | CHUNK_MAP_BININD_INVALID | flags; } JEMALLOC_INLINE void arena_mapbits_unallocated_size_set(arena_chunk_t *chunk, size_t pageind, size_t size) { size_t *mapbitsp; mapbitsp = arena_mapbitsp_get(chunk, pageind); assert((size & PAGE_MASK) == 0); assert((*mapbitsp & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) == 0); *mapbitsp = size | (*mapbitsp & PAGE_MASK); } JEMALLOC_INLINE void arena_mapbits_large_set(arena_chunk_t *chunk, size_t pageind, size_t size, size_t flags) { size_t *mapbitsp; size_t unzeroed; mapbitsp = arena_mapbitsp_get(chunk, pageind); assert((size & PAGE_MASK) == 0); assert((flags & CHUNK_MAP_DIRTY) == flags); unzeroed = *mapbitsp & CHUNK_MAP_UNZEROED; /* Preserve unzeroed. */ *mapbitsp = size | CHUNK_MAP_BININD_INVALID | flags | unzeroed | CHUNK_MAP_LARGE | CHUNK_MAP_ALLOCATED; } JEMALLOC_INLINE void arena_mapbits_large_binind_set(arena_chunk_t *chunk, size_t pageind, size_t binind) { size_t *mapbitsp; assert(binind <= BININD_INVALID); mapbitsp = arena_mapbitsp_get(chunk, pageind); assert(arena_mapbits_large_size_get(chunk, pageind) == PAGE); *mapbitsp = (*mapbitsp & ~CHUNK_MAP_BININD_MASK) | (binind << CHUNK_MAP_BININD_SHIFT); } JEMALLOC_INLINE void arena_mapbits_small_set(arena_chunk_t *chunk, size_t pageind, size_t runind, size_t binind, size_t flags) { size_t *mapbitsp; size_t unzeroed; assert(binind < BININD_INVALID); mapbitsp = arena_mapbitsp_get(chunk, pageind); assert(pageind - runind >= map_bias); assert((flags & CHUNK_MAP_DIRTY) == flags); unzeroed = *mapbitsp & CHUNK_MAP_UNZEROED; /* Preserve unzeroed. */ *mapbitsp = (runind << LG_PAGE) | (binind << CHUNK_MAP_BININD_SHIFT) | flags | unzeroed | CHUNK_MAP_ALLOCATED; } JEMALLOC_INLINE void arena_mapbits_unzeroed_set(arena_chunk_t *chunk, size_t pageind, size_t unzeroed) { size_t *mapbitsp; mapbitsp = arena_mapbitsp_get(chunk, pageind); *mapbitsp = (*mapbitsp & ~CHUNK_MAP_UNZEROED) | unzeroed; } JEMALLOC_INLINE size_t arena_ptr_small_binind_get(const void *ptr, size_t mapbits) { size_t binind; binind = (mapbits & CHUNK_MAP_BININD_MASK) >> CHUNK_MAP_BININD_SHIFT; if (config_debug) { arena_chunk_t *chunk; arena_t *arena; size_t pageind; size_t actual_mapbits; arena_run_t *run; arena_bin_t *bin; size_t actual_binind; arena_bin_info_t *bin_info; assert(binind != BININD_INVALID); assert(binind < NBINS); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); arena = chunk->arena; pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; actual_mapbits = arena_mapbits_get(chunk, pageind); assert(mapbits == actual_mapbits); assert(arena_mapbits_large_get(chunk, pageind) == 0); assert(arena_mapbits_allocated_get(chunk, pageind) != 0); run = (arena_run_t *)((uintptr_t)chunk + (uintptr_t)((pageind - (actual_mapbits >> LG_PAGE)) << LG_PAGE)); bin = run->bin; actual_binind = bin - arena->bins; assert(binind == actual_binind); bin_info = &arena_bin_info[actual_binind]; assert(((uintptr_t)ptr - ((uintptr_t)run + (uintptr_t)bin_info->reg0_offset)) % bin_info->reg_interval == 0); } return (binind); } # endif /* JEMALLOC_ARENA_INLINE_A */ # ifdef JEMALLOC_ARENA_INLINE_B JEMALLOC_INLINE size_t arena_bin_index(arena_t *arena, arena_bin_t *bin) { size_t binind = bin - arena->bins; assert(binind < NBINS); return (binind); } JEMALLOC_INLINE unsigned arena_run_regind(arena_run_t *run, arena_bin_info_t *bin_info, const void *ptr) { unsigned shift, diff, regind; size_t interval; /* * Freeing a pointer lower than region zero can cause assertion * failure. */ assert((uintptr_t)ptr >= (uintptr_t)run + (uintptr_t)bin_info->reg0_offset); /* * Avoid doing division with a variable divisor if possible. Using * actual division here can reduce allocator throughput by over 20%! */ diff = (unsigned)((uintptr_t)ptr - (uintptr_t)run - bin_info->reg0_offset); /* Rescale (factor powers of 2 out of the numerator and denominator). */ interval = bin_info->reg_interval; shift = ffs(interval) - 1; diff >>= shift; interval >>= shift; if (interval == 1) { /* The divisor was a power of 2. */ regind = diff; } else { /* * To divide by a number D that is not a power of two we * multiply by (2^21 / D) and then right shift by 21 positions. * * X / D * * becomes * * (X * interval_invs[D - 3]) >> SIZE_INV_SHIFT * * We can omit the first three elements, because we never * divide by 0, and 1 and 2 are both powers of two, which are * handled above. */ #define SIZE_INV_SHIFT ((sizeof(unsigned) << 3) - LG_RUN_MAXREGS) #define SIZE_INV(s) (((1U << SIZE_INV_SHIFT) / (s)) + 1) static const unsigned interval_invs[] = { SIZE_INV(3), SIZE_INV(4), SIZE_INV(5), SIZE_INV(6), SIZE_INV(7), SIZE_INV(8), SIZE_INV(9), SIZE_INV(10), SIZE_INV(11), SIZE_INV(12), SIZE_INV(13), SIZE_INV(14), SIZE_INV(15), SIZE_INV(16), SIZE_INV(17), SIZE_INV(18), SIZE_INV(19), SIZE_INV(20), SIZE_INV(21), SIZE_INV(22), SIZE_INV(23), SIZE_INV(24), SIZE_INV(25), SIZE_INV(26), SIZE_INV(27), SIZE_INV(28), SIZE_INV(29), SIZE_INV(30), SIZE_INV(31) }; if (interval <= ((sizeof(interval_invs) / sizeof(unsigned)) + 2)) { regind = (diff * interval_invs[interval - 3]) >> SIZE_INV_SHIFT; } else regind = diff / interval; #undef SIZE_INV #undef SIZE_INV_SHIFT } assert(diff == regind * interval); assert(regind < bin_info->nregs); return (regind); } JEMALLOC_INLINE prof_ctx_t * arena_prof_ctx_get(const void *ptr) { prof_ctx_t *ret; arena_chunk_t *chunk; size_t pageind, mapbits; cassert(config_prof); assert(ptr != NULL); assert(CHUNK_ADDR2BASE(ptr) != ptr); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; mapbits = arena_mapbits_get(chunk, pageind); assert((mapbits & CHUNK_MAP_ALLOCATED) != 0); if ((mapbits & CHUNK_MAP_LARGE) == 0) { if (prof_promote) ret = (prof_ctx_t *)(uintptr_t)1U; else { arena_run_t *run = (arena_run_t *)((uintptr_t)chunk + (uintptr_t)((pageind - (mapbits >> LG_PAGE)) << LG_PAGE)); size_t binind = arena_ptr_small_binind_get(ptr, mapbits); arena_bin_info_t *bin_info = &arena_bin_info[binind]; unsigned regind; regind = arena_run_regind(run, bin_info, ptr); ret = *(prof_ctx_t **)((uintptr_t)run + bin_info->ctx0_offset + (regind * sizeof(prof_ctx_t *))); } } else ret = arena_mapp_get(chunk, pageind)->prof_ctx; return (ret); } JEMALLOC_INLINE void arena_prof_ctx_set(const void *ptr, prof_ctx_t *ctx) { arena_chunk_t *chunk; size_t pageind, mapbits; cassert(config_prof); assert(ptr != NULL); assert(CHUNK_ADDR2BASE(ptr) != ptr); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; mapbits = arena_mapbits_get(chunk, pageind); assert((mapbits & CHUNK_MAP_ALLOCATED) != 0); if ((mapbits & CHUNK_MAP_LARGE) == 0) { if (prof_promote == false) { arena_run_t *run = (arena_run_t *)((uintptr_t)chunk + (uintptr_t)((pageind - (mapbits >> LG_PAGE)) << LG_PAGE)); size_t binind; arena_bin_info_t *bin_info; unsigned regind; binind = arena_ptr_small_binind_get(ptr, mapbits); bin_info = &arena_bin_info[binind]; regind = arena_run_regind(run, bin_info, ptr); *((prof_ctx_t **)((uintptr_t)run + bin_info->ctx0_offset + (regind * sizeof(prof_ctx_t *)))) = ctx; } else assert((uintptr_t)ctx == (uintptr_t)1U); } else arena_mapp_get(chunk, pageind)->prof_ctx = ctx; } JEMALLOC_INLINE void * arena_malloc(arena_t *arena, size_t size, bool zero, bool try_tcache) { tcache_t *tcache; assert(size != 0); assert(size <= arena_maxclass); if (size <= SMALL_MAXCLASS) { if (try_tcache && (tcache = tcache_get(true)) != NULL) return (tcache_alloc_small(tcache, size, zero)); else { return (arena_malloc_small(choose_arena(arena), size, zero)); } } else { /* * Initialize tcache after checking size in order to avoid * infinite recursion during tcache initialization. */ if (try_tcache && size <= tcache_maxclass && (tcache = tcache_get(true)) != NULL) return (tcache_alloc_large(tcache, size, zero)); else { return (arena_malloc_large(choose_arena(arena), size, zero)); } } } /* Return the size of the allocation pointed to by ptr. */ JEMALLOC_INLINE size_t arena_salloc(const void *ptr, bool demote) { size_t ret; arena_chunk_t *chunk; size_t pageind, binind; assert(ptr != NULL); assert(CHUNK_ADDR2BASE(ptr) != ptr); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; assert(arena_mapbits_allocated_get(chunk, pageind) != 0); binind = arena_mapbits_binind_get(chunk, pageind); if (binind == BININD_INVALID || (config_prof && demote == false && prof_promote && arena_mapbits_large_get(chunk, pageind) != 0)) { /* * Large allocation. In the common case (demote == true), and * as this is an inline function, most callers will only end up * looking at binind to determine that ptr is a small * allocation. */ assert(((uintptr_t)ptr & PAGE_MASK) == 0); ret = arena_mapbits_large_size_get(chunk, pageind); assert(ret != 0); assert(pageind + (ret>>LG_PAGE) <= chunk_npages); assert(ret == PAGE || arena_mapbits_large_size_get(chunk, pageind+(ret>>LG_PAGE)-1) == 0); assert(binind == arena_mapbits_binind_get(chunk, pageind+(ret>>LG_PAGE)-1)); assert(arena_mapbits_dirty_get(chunk, pageind) == arena_mapbits_dirty_get(chunk, pageind+(ret>>LG_PAGE)-1)); } else { /* * Small allocation (possibly promoted to a large object due to * prof_promote). */ assert(arena_mapbits_large_get(chunk, pageind) != 0 || arena_ptr_small_binind_get(ptr, arena_mapbits_get(chunk, pageind)) == binind); ret = arena_bin_info[binind].reg_size; } return (ret); } JEMALLOC_INLINE void arena_dalloc(arena_t *arena, arena_chunk_t *chunk, void *ptr, bool try_tcache) { size_t pageind, mapbits; tcache_t *tcache; assert(arena != NULL); assert(chunk->arena == arena); assert(ptr != NULL); assert(CHUNK_ADDR2BASE(ptr) != ptr); pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; mapbits = arena_mapbits_get(chunk, pageind); assert(arena_mapbits_allocated_get(chunk, pageind) != 0); if ((mapbits & CHUNK_MAP_LARGE) == 0) { /* Small allocation. */ if (try_tcache && (tcache = tcache_get(false)) != NULL) { size_t binind; binind = arena_ptr_small_binind_get(ptr, mapbits); tcache_dalloc_small(tcache, ptr, binind); } else arena_dalloc_small(arena, chunk, ptr, pageind); } else { size_t size = arena_mapbits_large_size_get(chunk, pageind); assert(((uintptr_t)ptr & PAGE_MASK) == 0); if (try_tcache && size <= tcache_maxclass && (tcache = tcache_get(false)) != NULL) { tcache_dalloc_large(tcache, ptr, size); } else arena_dalloc_large(arena, chunk, ptr); } } # endif /* JEMALLOC_ARENA_INLINE_B */ #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/atomic.h000066400000000000000000000160461220734223100241120ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS #define atomic_read_uint64(p) atomic_add_uint64(p, 0) #define atomic_read_uint32(p) atomic_add_uint32(p, 0) #define atomic_read_z(p) atomic_add_z(p, 0) #define atomic_read_u(p) atomic_add_u(p, 0) #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #ifndef JEMALLOC_ENABLE_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x); uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x); uint32_t atomic_add_uint32(uint32_t *p, uint32_t x); uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x); size_t atomic_add_z(size_t *p, size_t x); size_t atomic_sub_z(size_t *p, size_t x); unsigned atomic_add_u(unsigned *p, unsigned x); unsigned atomic_sub_u(unsigned *p, unsigned x); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_ATOMIC_C_)) /******************************************************************************/ /* 64-bit operations. */ #if (LG_SIZEOF_PTR == 3 || LG_SIZEOF_INT == 3) # ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 JEMALLOC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x) { return (__sync_add_and_fetch(p, x)); } JEMALLOC_INLINE uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x) { return (__sync_sub_and_fetch(p, x)); } #elif (defined(_MSC_VER)) JEMALLOC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x) { return (InterlockedExchangeAdd64(p, x)); } JEMALLOC_INLINE uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x) { return (InterlockedExchangeAdd64(p, -((int64_t)x))); } #elif (defined(JEMALLOC_OSATOMIC)) JEMALLOC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x) { return (OSAtomicAdd64((int64_t)x, (int64_t *)p)); } JEMALLOC_INLINE uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x) { return (OSAtomicAdd64(-((int64_t)x), (int64_t *)p)); } # elif (defined(__amd64__) || defined(__x86_64__)) JEMALLOC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x) { asm volatile ( "lock; xaddq %0, %1;" : "+r" (x), "=m" (*p) /* Outputs. */ : "m" (*p) /* Inputs. */ ); return (x); } JEMALLOC_INLINE uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x) { x = (uint64_t)(-(int64_t)x); asm volatile ( "lock; xaddq %0, %1;" : "+r" (x), "=m" (*p) /* Outputs. */ : "m" (*p) /* Inputs. */ ); return (x); } # elif (defined(JEMALLOC_ATOMIC9)) JEMALLOC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x) { /* * atomic_fetchadd_64() doesn't exist, but we only ever use this * function on LP64 systems, so atomic_fetchadd_long() will do. */ assert(sizeof(uint64_t) == sizeof(unsigned long)); return (atomic_fetchadd_long(p, (unsigned long)x) + x); } JEMALLOC_INLINE uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x) { assert(sizeof(uint64_t) == sizeof(unsigned long)); return (atomic_fetchadd_long(p, (unsigned long)(-(long)x)) - x); } # elif (defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_8)) JEMALLOC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x) { return (__sync_add_and_fetch(p, x)); } JEMALLOC_INLINE uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x) { return (__sync_sub_and_fetch(p, x)); } # else # error "Missing implementation for 64-bit atomic operations" # endif #endif /******************************************************************************/ /* 32-bit operations. */ #ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 JEMALLOC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x) { return (__sync_add_and_fetch(p, x)); } JEMALLOC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x) { return (__sync_sub_and_fetch(p, x)); } #elif (defined(_MSC_VER)) JEMALLOC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x) { return (InterlockedExchangeAdd(p, x)); } JEMALLOC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x) { return (InterlockedExchangeAdd(p, -((int32_t)x))); } #elif (defined(JEMALLOC_OSATOMIC)) JEMALLOC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x) { return (OSAtomicAdd32((int32_t)x, (int32_t *)p)); } JEMALLOC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x) { return (OSAtomicAdd32(-((int32_t)x), (int32_t *)p)); } #elif (defined(__i386__) || defined(__amd64__) || defined(__x86_64__)) JEMALLOC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x) { asm volatile ( "lock; xaddl %0, %1;" : "+r" (x), "=m" (*p) /* Outputs. */ : "m" (*p) /* Inputs. */ ); return (x); } JEMALLOC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x) { x = (uint32_t)(-(int32_t)x); asm volatile ( "lock; xaddl %0, %1;" : "+r" (x), "=m" (*p) /* Outputs. */ : "m" (*p) /* Inputs. */ ); return (x); } #elif (defined(JEMALLOC_ATOMIC9)) JEMALLOC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x) { return (atomic_fetchadd_32(p, x) + x); } JEMALLOC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x) { return (atomic_fetchadd_32(p, (uint32_t)(-(int32_t)x)) - x); } #elif (defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_4)) JEMALLOC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x) { return (__sync_add_and_fetch(p, x)); } JEMALLOC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x) { return (__sync_sub_and_fetch(p, x)); } #else # error "Missing implementation for 32-bit atomic operations" #endif /******************************************************************************/ /* size_t operations. */ JEMALLOC_INLINE size_t atomic_add_z(size_t *p, size_t x) { #if (LG_SIZEOF_PTR == 3) return ((size_t)atomic_add_uint64((uint64_t *)p, (uint64_t)x)); #elif (LG_SIZEOF_PTR == 2) return ((size_t)atomic_add_uint32((uint32_t *)p, (uint32_t)x)); #endif } JEMALLOC_INLINE size_t atomic_sub_z(size_t *p, size_t x) { #if (LG_SIZEOF_PTR == 3) return ((size_t)atomic_add_uint64((uint64_t *)p, (uint64_t)-((int64_t)x))); #elif (LG_SIZEOF_PTR == 2) return ((size_t)atomic_add_uint32((uint32_t *)p, (uint32_t)-((int32_t)x))); #endif } /******************************************************************************/ /* unsigned operations. */ JEMALLOC_INLINE unsigned atomic_add_u(unsigned *p, unsigned x) { #if (LG_SIZEOF_INT == 3) return ((unsigned)atomic_add_uint64((uint64_t *)p, (uint64_t)x)); #elif (LG_SIZEOF_INT == 2) return ((unsigned)atomic_add_uint32((uint32_t *)p, (uint32_t)x)); #endif } JEMALLOC_INLINE unsigned atomic_sub_u(unsigned *p, unsigned x) { #if (LG_SIZEOF_INT == 3) return ((unsigned)atomic_add_uint64((uint64_t *)p, (uint64_t)-((int64_t)x))); #elif (LG_SIZEOF_INT == 2) return ((unsigned)atomic_add_uint32((uint32_t *)p, (uint32_t)-((int32_t)x))); #endif } /******************************************************************************/ #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/base.h000066400000000000000000000016171220734223100235460ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS void *base_alloc(size_t size); void *base_calloc(size_t number, size_t size); extent_node_t *base_node_alloc(void); void base_node_dealloc(extent_node_t *node); bool base_boot(void); void base_prefork(void); void base_postfork_parent(void); void base_postfork_child(void); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/bitmap.h000066400000000000000000000121201220734223100240770ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES /* Maximum bitmap bit count is 2^LG_BITMAP_MAXBITS. */ #define LG_BITMAP_MAXBITS LG_RUN_MAXREGS typedef struct bitmap_level_s bitmap_level_t; typedef struct bitmap_info_s bitmap_info_t; typedef unsigned long bitmap_t; #define LG_SIZEOF_BITMAP LG_SIZEOF_LONG /* Number of bits per group. */ #define LG_BITMAP_GROUP_NBITS (LG_SIZEOF_BITMAP + 3) #define BITMAP_GROUP_NBITS (ZU(1) << LG_BITMAP_GROUP_NBITS) #define BITMAP_GROUP_NBITS_MASK (BITMAP_GROUP_NBITS-1) /* Maximum number of levels possible. */ #define BITMAP_MAX_LEVELS \ (LG_BITMAP_MAXBITS / LG_SIZEOF_BITMAP) \ + !!(LG_BITMAP_MAXBITS % LG_SIZEOF_BITMAP) #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS struct bitmap_level_s { /* Offset of this level's groups within the array of groups. */ size_t group_offset; }; struct bitmap_info_s { /* Logical number of bits in bitmap (stored at bottom level). */ size_t nbits; /* Number of levels necessary for nbits. */ unsigned nlevels; /* * Only the first (nlevels+1) elements are used, and levels are ordered * bottom to top (e.g. the bottom level is stored in levels[0]). */ bitmap_level_t levels[BITMAP_MAX_LEVELS+1]; }; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS void bitmap_info_init(bitmap_info_t *binfo, size_t nbits); size_t bitmap_info_ngroups(const bitmap_info_t *binfo); size_t bitmap_size(size_t nbits); void bitmap_init(bitmap_t *bitmap, const bitmap_info_t *binfo); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #ifndef JEMALLOC_ENABLE_INLINE bool bitmap_full(bitmap_t *bitmap, const bitmap_info_t *binfo); bool bitmap_get(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit); void bitmap_set(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit); size_t bitmap_sfu(bitmap_t *bitmap, const bitmap_info_t *binfo); void bitmap_unset(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_BITMAP_C_)) JEMALLOC_INLINE bool bitmap_full(bitmap_t *bitmap, const bitmap_info_t *binfo) { unsigned rgoff = binfo->levels[binfo->nlevels].group_offset - 1; bitmap_t rg = bitmap[rgoff]; /* The bitmap is full iff the root group is 0. */ return (rg == 0); } JEMALLOC_INLINE bool bitmap_get(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit) { size_t goff; bitmap_t g; assert(bit < binfo->nbits); goff = bit >> LG_BITMAP_GROUP_NBITS; g = bitmap[goff]; return (!(g & (1LU << (bit & BITMAP_GROUP_NBITS_MASK)))); } JEMALLOC_INLINE void bitmap_set(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit) { size_t goff; bitmap_t *gp; bitmap_t g; assert(bit < binfo->nbits); assert(bitmap_get(bitmap, binfo, bit) == false); goff = bit >> LG_BITMAP_GROUP_NBITS; gp = &bitmap[goff]; g = *gp; assert(g & (1LU << (bit & BITMAP_GROUP_NBITS_MASK))); g ^= 1LU << (bit & BITMAP_GROUP_NBITS_MASK); *gp = g; assert(bitmap_get(bitmap, binfo, bit)); /* Propagate group state transitions up the tree. */ if (g == 0) { unsigned i; for (i = 1; i < binfo->nlevels; i++) { bit = goff; goff = bit >> LG_BITMAP_GROUP_NBITS; gp = &bitmap[binfo->levels[i].group_offset + goff]; g = *gp; assert(g & (1LU << (bit & BITMAP_GROUP_NBITS_MASK))); g ^= 1LU << (bit & BITMAP_GROUP_NBITS_MASK); *gp = g; if (g != 0) break; } } } /* sfu: set first unset. */ JEMALLOC_INLINE size_t bitmap_sfu(bitmap_t *bitmap, const bitmap_info_t *binfo) { size_t bit; bitmap_t g; unsigned i; assert(bitmap_full(bitmap, binfo) == false); i = binfo->nlevels - 1; g = bitmap[binfo->levels[i].group_offset]; bit = ffsl(g) - 1; while (i > 0) { i--; g = bitmap[binfo->levels[i].group_offset + bit]; bit = (bit << LG_BITMAP_GROUP_NBITS) + (ffsl(g) - 1); } bitmap_set(bitmap, binfo, bit); return (bit); } JEMALLOC_INLINE void bitmap_unset(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit) { size_t goff; bitmap_t *gp; bitmap_t g; bool propagate; assert(bit < binfo->nbits); assert(bitmap_get(bitmap, binfo, bit)); goff = bit >> LG_BITMAP_GROUP_NBITS; gp = &bitmap[goff]; g = *gp; propagate = (g == 0); assert((g & (1LU << (bit & BITMAP_GROUP_NBITS_MASK))) == 0); g ^= 1LU << (bit & BITMAP_GROUP_NBITS_MASK); *gp = g; assert(bitmap_get(bitmap, binfo, bit) == false); /* Propagate group state transitions up the tree. */ if (propagate) { unsigned i; for (i = 1; i < binfo->nlevels; i++) { bit = goff; goff = bit >> LG_BITMAP_GROUP_NBITS; gp = &bitmap[binfo->levels[i].group_offset + goff]; g = *gp; propagate = (g == 0); assert((g & (1LU << (bit & BITMAP_GROUP_NBITS_MASK))) == 0); g ^= 1LU << (bit & BITMAP_GROUP_NBITS_MASK); *gp = g; if (propagate == false) break; } } } #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/chunk.h000066400000000000000000000040161220734223100237400ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES /* * Size and alignment of memory chunks that are allocated by the OS's virtual * memory system. */ #define LG_CHUNK_DEFAULT 22 /* Return the chunk address for allocation address a. */ #define CHUNK_ADDR2BASE(a) \ ((void *)((uintptr_t)(a) & ~chunksize_mask)) /* Return the chunk offset of address a. */ #define CHUNK_ADDR2OFFSET(a) \ ((size_t)((uintptr_t)(a) & chunksize_mask)) /* Return the smallest chunk multiple that is >= s. */ #define CHUNK_CEILING(s) \ (((s) + chunksize_mask) & ~chunksize_mask) #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS extern size_t opt_lg_chunk; extern const char *opt_dss; /* Protects stats_chunks; currently not used for any other purpose. */ extern malloc_mutex_t chunks_mtx; /* Chunk statistics. */ extern chunk_stats_t stats_chunks; extern rtree_t *chunks_rtree; extern size_t chunksize; extern size_t chunksize_mask; /* (chunksize - 1). */ extern size_t chunk_npages; extern size_t map_bias; /* Number of arena chunk header pages. */ extern size_t arena_maxclass; /* Max size class for arenas. */ void *chunk_alloc(size_t size, size_t alignment, bool base, bool *zero, dss_prec_t dss_prec); void chunk_unmap(void *chunk, size_t size); void chunk_dealloc(void *chunk, size_t size, bool unmap); bool chunk_boot(void); void chunk_prefork(void); void chunk_postfork_parent(void); void chunk_postfork_child(void); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ #include "jemalloc/internal/chunk_dss.h" #include "jemalloc/internal/chunk_mmap.h" redis-2.6.16/deps/jemalloc/include/jemalloc/internal/chunk_dss.h000066400000000000000000000022551220734223100246140ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES typedef enum { dss_prec_disabled = 0, dss_prec_primary = 1, dss_prec_secondary = 2, dss_prec_limit = 3 } dss_prec_t ; #define DSS_PREC_DEFAULT dss_prec_secondary #define DSS_DEFAULT "secondary" #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS extern const char *dss_prec_names[]; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS dss_prec_t chunk_dss_prec_get(void); bool chunk_dss_prec_set(dss_prec_t dss_prec); void *chunk_alloc_dss(size_t size, size_t alignment, bool *zero); bool chunk_in_dss(void *chunk); bool chunk_dss_boot(void); void chunk_dss_prefork(void); void chunk_dss_postfork_parent(void); void chunk_dss_postfork_child(void); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/chunk_mmap.h000066400000000000000000000014421220734223100247520ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS bool pages_purge(void *addr, size_t length); void *chunk_alloc_mmap(size_t size, size_t alignment, bool *zero); bool chunk_dealloc_mmap(void *chunk, size_t size); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/ckh.h000066400000000000000000000052551220734223100234030ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES typedef struct ckh_s ckh_t; typedef struct ckhc_s ckhc_t; /* Typedefs to allow easy function pointer passing. */ typedef void ckh_hash_t (const void *, unsigned, size_t *, size_t *); typedef bool ckh_keycomp_t (const void *, const void *); /* Maintain counters used to get an idea of performance. */ /* #define CKH_COUNT */ /* Print counter values in ckh_delete() (requires CKH_COUNT). */ /* #define CKH_VERBOSE */ /* * There are 2^LG_CKH_BUCKET_CELLS cells in each hash table bucket. Try to fit * one bucket per L1 cache line. */ #define LG_CKH_BUCKET_CELLS (LG_CACHELINE - LG_SIZEOF_PTR - 1) #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS /* Hash table cell. */ struct ckhc_s { const void *key; const void *data; }; struct ckh_s { #ifdef CKH_COUNT /* Counters used to get an idea of performance. */ uint64_t ngrows; uint64_t nshrinks; uint64_t nshrinkfails; uint64_t ninserts; uint64_t nrelocs; #endif /* Used for pseudo-random number generation. */ #define CKH_A 1103515241 #define CKH_C 12347 uint32_t prng_state; /* Total number of items. */ size_t count; /* * Minimum and current number of hash table buckets. There are * 2^LG_CKH_BUCKET_CELLS cells per bucket. */ unsigned lg_minbuckets; unsigned lg_curbuckets; /* Hash and comparison functions. */ ckh_hash_t *hash; ckh_keycomp_t *keycomp; /* Hash table with 2^lg_curbuckets buckets. */ ckhc_t *tab; }; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS bool ckh_new(ckh_t *ckh, size_t minitems, ckh_hash_t *hash, ckh_keycomp_t *keycomp); void ckh_delete(ckh_t *ckh); size_t ckh_count(ckh_t *ckh); bool ckh_iter(ckh_t *ckh, size_t *tabind, void **key, void **data); bool ckh_insert(ckh_t *ckh, const void *key, const void *data); bool ckh_remove(ckh_t *ckh, const void *searchkey, void **key, void **data); bool ckh_search(ckh_t *ckh, const void *seachkey, void **key, void **data); void ckh_string_hash(const void *key, unsigned minbits, size_t *hash1, size_t *hash2); bool ckh_string_keycomp(const void *k1, const void *k2); void ckh_pointer_hash(const void *key, unsigned minbits, size_t *hash1, size_t *hash2); bool ckh_pointer_keycomp(const void *k1, const void *k2); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/ctl.h000066400000000000000000000064501220734223100234160ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES typedef struct ctl_node_s ctl_node_t; typedef struct ctl_named_node_s ctl_named_node_t; typedef struct ctl_indexed_node_s ctl_indexed_node_t; typedef struct ctl_arena_stats_s ctl_arena_stats_t; typedef struct ctl_stats_s ctl_stats_t; #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS struct ctl_node_s { bool named; }; struct ctl_named_node_s { struct ctl_node_s node; const char *name; /* If (nchildren == 0), this is a terminal node. */ unsigned nchildren; const ctl_node_t *children; int (*ctl)(const size_t *, size_t, void *, size_t *, void *, size_t); }; struct ctl_indexed_node_s { struct ctl_node_s node; const ctl_named_node_t *(*index)(const size_t *, size_t, size_t); }; struct ctl_arena_stats_s { bool initialized; unsigned nthreads; const char *dss; size_t pactive; size_t pdirty; arena_stats_t astats; /* Aggregate stats for small size classes, based on bin stats. */ size_t allocated_small; uint64_t nmalloc_small; uint64_t ndalloc_small; uint64_t nrequests_small; malloc_bin_stats_t bstats[NBINS]; malloc_large_stats_t *lstats; /* nlclasses elements. */ }; struct ctl_stats_s { size_t allocated; size_t active; size_t mapped; struct { size_t current; /* stats_chunks.curchunks */ uint64_t total; /* stats_chunks.nchunks */ size_t high; /* stats_chunks.highchunks */ } chunks; struct { size_t allocated; /* huge_allocated */ uint64_t nmalloc; /* huge_nmalloc */ uint64_t ndalloc; /* huge_ndalloc */ } huge; unsigned narenas; ctl_arena_stats_t *arenas; /* (narenas + 1) elements. */ }; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS int ctl_byname(const char *name, void *oldp, size_t *oldlenp, void *newp, size_t newlen); int ctl_nametomib(const char *name, size_t *mibp, size_t *miblenp); int ctl_bymib(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen); bool ctl_boot(void); void ctl_prefork(void); void ctl_postfork_parent(void); void ctl_postfork_child(void); #define xmallctl(name, oldp, oldlenp, newp, newlen) do { \ if (je_mallctl(name, oldp, oldlenp, newp, newlen) \ != 0) { \ malloc_printf( \ ": Failure in xmallctl(\"%s\", ...)\n", \ name); \ abort(); \ } \ } while (0) #define xmallctlnametomib(name, mibp, miblenp) do { \ if (je_mallctlnametomib(name, mibp, miblenp) != 0) { \ malloc_printf(": Failure in " \ "xmallctlnametomib(\"%s\", ...)\n", name); \ abort(); \ } \ } while (0) #define xmallctlbymib(mib, miblen, oldp, oldlenp, newp, newlen) do { \ if (je_mallctlbymib(mib, miblen, oldp, oldlenp, newp, \ newlen) != 0) { \ malloc_write( \ ": Failure in xmallctlbymib()\n"); \ abort(); \ } \ } while (0) #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/extent.h000066400000000000000000000024731220734223100241440ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES typedef struct extent_node_s extent_node_t; #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS /* Tree of extents. */ struct extent_node_s { /* Linkage for the size/address-ordered tree. */ rb_node(extent_node_t) link_szad; /* Linkage for the address-ordered tree. */ rb_node(extent_node_t) link_ad; /* Profile counters, used for huge objects. */ prof_ctx_t *prof_ctx; /* Pointer to the extent that this tree node is responsible for. */ void *addr; /* Total region size. */ size_t size; /* True if zero-filled; used by chunk recycling code. */ bool zeroed; }; typedef rb_tree(extent_node_t) extent_tree_t; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS rb_proto(, extent_tree_szad_, extent_tree_t, extent_node_t) rb_proto(, extent_tree_ad_, extent_tree_t, extent_node_t) #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/hash.h000066400000000000000000000034711220734223100235570ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #ifndef JEMALLOC_ENABLE_INLINE uint64_t hash(const void *key, size_t len, uint64_t seed); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_HASH_C_)) /* * The following hash function is based on MurmurHash64A(), placed into the * public domain by Austin Appleby. See http://murmurhash.googlepages.com/ for * details. */ JEMALLOC_INLINE uint64_t hash(const void *key, size_t len, uint64_t seed) { const uint64_t m = UINT64_C(0xc6a4a7935bd1e995); const int r = 47; uint64_t h = seed ^ (len * m); const uint64_t *data = (const uint64_t *)key; const uint64_t *end = data + (len/8); const unsigned char *data2; assert(((uintptr_t)key & 0x7) == 0); while(data != end) { uint64_t k = *data++; k *= m; k ^= k >> r; k *= m; h ^= k; h *= m; } data2 = (const unsigned char *)data; switch(len & 7) { case 7: h ^= ((uint64_t)(data2[6])) << 48; case 6: h ^= ((uint64_t)(data2[5])) << 40; case 5: h ^= ((uint64_t)(data2[4])) << 32; case 4: h ^= ((uint64_t)(data2[3])) << 24; case 3: h ^= ((uint64_t)(data2[2])) << 16; case 2: h ^= ((uint64_t)(data2[1])) << 8; case 1: h ^= ((uint64_t)(data2[0])); h *= m; } h ^= h >> r; h *= m; h ^= h >> r; return (h); } #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/huge.h000066400000000000000000000026641220734223100235670ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS /* Huge allocation statistics. */ extern uint64_t huge_nmalloc; extern uint64_t huge_ndalloc; extern size_t huge_allocated; /* Protects chunk-related data structures. */ extern malloc_mutex_t huge_mtx; void *huge_malloc(size_t size, bool zero); void *huge_palloc(size_t size, size_t alignment, bool zero); void *huge_ralloc_no_move(void *ptr, size_t oldsize, size_t size, size_t extra); void *huge_ralloc(void *ptr, size_t oldsize, size_t size, size_t extra, size_t alignment, bool zero, bool try_tcache_dalloc); void huge_dalloc(void *ptr, bool unmap); size_t huge_salloc(const void *ptr); prof_ctx_t *huge_prof_ctx_get(const void *ptr); void huge_prof_ctx_set(const void *ptr, prof_ctx_t *ctx); bool huge_boot(void); void huge_prefork(void); void huge_postfork_parent(void); void huge_postfork_child(void); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/jemalloc_internal.h.in000066400000000000000000000625061220734223100267270ustar00rootroot00000000000000#ifndef JEMALLOC_INTERNAL_H #define JEMALLOC_INTERNAL_H #include #ifdef _WIN32 # include # define ENOENT ERROR_PATH_NOT_FOUND # define EINVAL ERROR_BAD_ARGUMENTS # define EAGAIN ERROR_OUTOFMEMORY # define EPERM ERROR_WRITE_FAULT # define EFAULT ERROR_INVALID_ADDRESS # define ENOMEM ERROR_NOT_ENOUGH_MEMORY # undef ERANGE # define ERANGE ERROR_INVALID_DATA #else # include # include # include # if !defined(SYS_write) && defined(__NR_write) # define SYS_write __NR_write # endif # include # include # include #endif #include #include #ifndef SIZE_T_MAX # define SIZE_T_MAX SIZE_MAX #endif #include #include #include #include #include #include #ifndef offsetof # define offsetof(type, member) ((size_t)&(((type *)NULL)->member)) #endif #include #include #include #include #ifdef _MSC_VER # include typedef intptr_t ssize_t; # define PATH_MAX 1024 # define STDERR_FILENO 2 # define __func__ __FUNCTION__ /* Disable warnings about deprecated system functions */ # pragma warning(disable: 4996) #else # include #endif #include #define JEMALLOC_NO_DEMANGLE #include "../jemalloc@install_suffix@.h" #ifdef JEMALLOC_UTRACE #include #endif #ifdef JEMALLOC_VALGRIND #include #include #endif #include "jemalloc/internal/private_namespace.h" #ifdef JEMALLOC_CC_SILENCE #define UNUSED JEMALLOC_ATTR(unused) #else #define UNUSED #endif static const bool config_debug = #ifdef JEMALLOC_DEBUG true #else false #endif ; static const bool config_dss = #ifdef JEMALLOC_DSS true #else false #endif ; static const bool config_fill = #ifdef JEMALLOC_FILL true #else false #endif ; static const bool config_lazy_lock = #ifdef JEMALLOC_LAZY_LOCK true #else false #endif ; static const bool config_prof = #ifdef JEMALLOC_PROF true #else false #endif ; static const bool config_prof_libgcc = #ifdef JEMALLOC_PROF_LIBGCC true #else false #endif ; static const bool config_prof_libunwind = #ifdef JEMALLOC_PROF_LIBUNWIND true #else false #endif ; static const bool config_mremap = #ifdef JEMALLOC_MREMAP true #else false #endif ; static const bool config_munmap = #ifdef JEMALLOC_MUNMAP true #else false #endif ; static const bool config_stats = #ifdef JEMALLOC_STATS true #else false #endif ; static const bool config_tcache = #ifdef JEMALLOC_TCACHE true #else false #endif ; static const bool config_tls = #ifdef JEMALLOC_TLS true #else false #endif ; static const bool config_utrace = #ifdef JEMALLOC_UTRACE true #else false #endif ; static const bool config_valgrind = #ifdef JEMALLOC_VALGRIND true #else false #endif ; static const bool config_xmalloc = #ifdef JEMALLOC_XMALLOC true #else false #endif ; static const bool config_ivsalloc = #ifdef JEMALLOC_IVSALLOC true #else false #endif ; #ifdef JEMALLOC_ATOMIC9 #include #endif #if (defined(JEMALLOC_OSATOMIC) || defined(JEMALLOC_OSSPIN)) #include #endif #ifdef JEMALLOC_ZONE #include #include #include #include #endif #define RB_COMPACT #include "jemalloc/internal/rb.h" #include "jemalloc/internal/qr.h" #include "jemalloc/internal/ql.h" /* * jemalloc can conceptually be broken into components (arena, tcache, etc.), * but there are circular dependencies that cannot be broken without * substantial performance degradation. In order to reduce the effect on * visual code flow, read the header files in multiple passes, with one of the * following cpp variables defined during each pass: * * JEMALLOC_H_TYPES : Preprocessor-defined constants and psuedo-opaque data * types. * JEMALLOC_H_STRUCTS : Data structures. * JEMALLOC_H_EXTERNS : Extern data declarations and function prototypes. * JEMALLOC_H_INLINES : Inline functions. */ /******************************************************************************/ #define JEMALLOC_H_TYPES #define ALLOCM_LG_ALIGN_MASK ((int)0x3f) #define ZU(z) ((size_t)z) #ifndef __DECONST # define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var)) #endif #ifdef JEMALLOC_DEBUG /* Disable inlining to make debugging easier. */ # define JEMALLOC_INLINE # define inline #else # define JEMALLOC_ENABLE_INLINE # define JEMALLOC_INLINE static inline # ifdef _MSC_VER # define inline _inline # endif #endif /* Smallest size class to support. */ #define LG_TINY_MIN 3 #define TINY_MIN (1U << LG_TINY_MIN) /* * Minimum alignment of allocations is 2^LG_QUANTUM bytes (ignoring tiny size * classes). */ #ifndef LG_QUANTUM # if (defined(__i386__) || defined(_M_IX86)) # define LG_QUANTUM 4 # endif # ifdef __ia64__ # define LG_QUANTUM 4 # endif # ifdef __alpha__ # define LG_QUANTUM 4 # endif # ifdef __sparc64__ # define LG_QUANTUM 4 # endif # if (defined(__amd64__) || defined(__x86_64__) || defined(_M_X64)) # define LG_QUANTUM 4 # endif # ifdef __arm__ # define LG_QUANTUM 3 # endif # ifdef __hppa__ # define LG_QUANTUM 4 # endif # ifdef __mips__ # define LG_QUANTUM 3 # endif # ifdef __powerpc__ # define LG_QUANTUM 4 # endif # ifdef __s390x__ # define LG_QUANTUM 4 # endif # ifdef __SH4__ # define LG_QUANTUM 4 # endif # ifdef __tile__ # define LG_QUANTUM 4 # endif # ifndef LG_QUANTUM # error "No LG_QUANTUM definition for architecture; specify via CPPFLAGS" # endif #endif #define QUANTUM ((size_t)(1U << LG_QUANTUM)) #define QUANTUM_MASK (QUANTUM - 1) /* Return the smallest quantum multiple that is >= a. */ #define QUANTUM_CEILING(a) \ (((a) + QUANTUM_MASK) & ~QUANTUM_MASK) #define LONG ((size_t)(1U << LG_SIZEOF_LONG)) #define LONG_MASK (LONG - 1) /* Return the smallest long multiple that is >= a. */ #define LONG_CEILING(a) \ (((a) + LONG_MASK) & ~LONG_MASK) #define SIZEOF_PTR (1U << LG_SIZEOF_PTR) #define PTR_MASK (SIZEOF_PTR - 1) /* Return the smallest (void *) multiple that is >= a. */ #define PTR_CEILING(a) \ (((a) + PTR_MASK) & ~PTR_MASK) /* * Maximum size of L1 cache line. This is used to avoid cache line aliasing. * In addition, this controls the spacing of cacheline-spaced size classes. * * CACHELINE cannot be based on LG_CACHELINE because __declspec(align()) can * only handle raw constants. */ #define LG_CACHELINE 6 #define CACHELINE 64 #define CACHELINE_MASK (CACHELINE - 1) /* Return the smallest cacheline multiple that is >= s. */ #define CACHELINE_CEILING(s) \ (((s) + CACHELINE_MASK) & ~CACHELINE_MASK) /* Page size. STATIC_PAGE_SHIFT is determined by the configure script. */ #ifdef PAGE_MASK # undef PAGE_MASK #endif #define LG_PAGE STATIC_PAGE_SHIFT #define PAGE ((size_t)(1U << STATIC_PAGE_SHIFT)) #define PAGE_MASK ((size_t)(PAGE - 1)) /* Return the smallest pagesize multiple that is >= s. */ #define PAGE_CEILING(s) \ (((s) + PAGE_MASK) & ~PAGE_MASK) /* Return the nearest aligned address at or below a. */ #define ALIGNMENT_ADDR2BASE(a, alignment) \ ((void *)((uintptr_t)(a) & (-(alignment)))) /* Return the offset between a and the nearest aligned address at or below a. */ #define ALIGNMENT_ADDR2OFFSET(a, alignment) \ ((size_t)((uintptr_t)(a) & (alignment - 1))) /* Return the smallest alignment multiple that is >= s. */ #define ALIGNMENT_CEILING(s, alignment) \ (((s) + (alignment - 1)) & (-(alignment))) /* Declare a variable length array */ #if __STDC_VERSION__ < 199901L # ifdef _MSC_VER # include # define alloca _alloca # else # include # endif # define VARIABLE_ARRAY(type, name, count) \ type *name = alloca(sizeof(type) * count) #else # define VARIABLE_ARRAY(type, name, count) type name[count] #endif #ifdef JEMALLOC_VALGRIND /* * The JEMALLOC_VALGRIND_*() macros must be macros rather than functions * so that when Valgrind reports errors, there are no extra stack frames * in the backtraces. * * The size that is reported to valgrind must be consistent through a chain of * malloc..realloc..realloc calls. Request size isn't recorded anywhere in * jemalloc, so it is critical that all callers of these macros provide usize * rather than request size. As a result, buffer overflow detection is * technically weakened for the standard API, though it is generally accepted * practice to consider any extra bytes reported by malloc_usable_size() as * usable space. */ #define JEMALLOC_VALGRIND_MALLOC(cond, ptr, usize, zero) do { \ if (config_valgrind && opt_valgrind && cond) \ VALGRIND_MALLOCLIKE_BLOCK(ptr, usize, p2rz(ptr), zero); \ } while (0) #define JEMALLOC_VALGRIND_REALLOC(ptr, usize, old_ptr, old_usize, \ old_rzsize, zero) do { \ if (config_valgrind && opt_valgrind) { \ size_t rzsize = p2rz(ptr); \ \ if (ptr == old_ptr) { \ VALGRIND_RESIZEINPLACE_BLOCK(ptr, old_usize, \ usize, rzsize); \ if (zero && old_usize < usize) { \ VALGRIND_MAKE_MEM_DEFINED( \ (void *)((uintptr_t)ptr + \ old_usize), usize - old_usize); \ } \ } else { \ if (old_ptr != NULL) { \ VALGRIND_FREELIKE_BLOCK(old_ptr, \ old_rzsize); \ } \ if (ptr != NULL) { \ size_t copy_size = (old_usize < usize) \ ? old_usize : usize; \ size_t tail_size = usize - copy_size; \ VALGRIND_MALLOCLIKE_BLOCK(ptr, usize, \ rzsize, false); \ if (copy_size > 0) { \ VALGRIND_MAKE_MEM_DEFINED(ptr, \ copy_size); \ } \ if (zero && tail_size > 0) { \ VALGRIND_MAKE_MEM_DEFINED( \ (void *)((uintptr_t)ptr + \ copy_size), tail_size); \ } \ } \ } \ } \ } while (0) #define JEMALLOC_VALGRIND_FREE(ptr, rzsize) do { \ if (config_valgrind && opt_valgrind) \ VALGRIND_FREELIKE_BLOCK(ptr, rzsize); \ } while (0) #else #define RUNNING_ON_VALGRIND ((unsigned)0) #define VALGRIND_MALLOCLIKE_BLOCK(addr, sizeB, rzB, is_zeroed) #define VALGRIND_RESIZEINPLACE_BLOCK(addr, oldSizeB, newSizeB, rzB) #define VALGRIND_FREELIKE_BLOCK(addr, rzB) #define VALGRIND_MAKE_MEM_UNDEFINED(_qzz_addr, _qzz_len) #define VALGRIND_MAKE_MEM_DEFINED(_qzz_addr, _qzz_len) #define JEMALLOC_VALGRIND_MALLOC(cond, ptr, usize, zero) #define JEMALLOC_VALGRIND_REALLOC(ptr, usize, old_ptr, old_usize, \ old_rzsize, zero) #define JEMALLOC_VALGRIND_FREE(ptr, rzsize) #endif #include "jemalloc/internal/util.h" #include "jemalloc/internal/atomic.h" #include "jemalloc/internal/prng.h" #include "jemalloc/internal/ckh.h" #include "jemalloc/internal/size_classes.h" #include "jemalloc/internal/stats.h" #include "jemalloc/internal/ctl.h" #include "jemalloc/internal/mutex.h" #include "jemalloc/internal/tsd.h" #include "jemalloc/internal/mb.h" #include "jemalloc/internal/extent.h" #include "jemalloc/internal/arena.h" #include "jemalloc/internal/bitmap.h" #include "jemalloc/internal/base.h" #include "jemalloc/internal/chunk.h" #include "jemalloc/internal/huge.h" #include "jemalloc/internal/rtree.h" #include "jemalloc/internal/tcache.h" #include "jemalloc/internal/hash.h" #include "jemalloc/internal/quarantine.h" #include "jemalloc/internal/prof.h" #undef JEMALLOC_H_TYPES /******************************************************************************/ #define JEMALLOC_H_STRUCTS #include "jemalloc/internal/util.h" #include "jemalloc/internal/atomic.h" #include "jemalloc/internal/prng.h" #include "jemalloc/internal/ckh.h" #include "jemalloc/internal/size_classes.h" #include "jemalloc/internal/stats.h" #include "jemalloc/internal/ctl.h" #include "jemalloc/internal/mutex.h" #include "jemalloc/internal/tsd.h" #include "jemalloc/internal/mb.h" #include "jemalloc/internal/bitmap.h" #include "jemalloc/internal/extent.h" #include "jemalloc/internal/arena.h" #include "jemalloc/internal/base.h" #include "jemalloc/internal/chunk.h" #include "jemalloc/internal/huge.h" #include "jemalloc/internal/rtree.h" #include "jemalloc/internal/tcache.h" #include "jemalloc/internal/hash.h" #include "jemalloc/internal/quarantine.h" #include "jemalloc/internal/prof.h" typedef struct { uint64_t allocated; uint64_t deallocated; } thread_allocated_t; /* * The JEMALLOC_CONCAT() wrapper is necessary to pass {0, 0} via a cpp macro * argument. */ #define THREAD_ALLOCATED_INITIALIZER JEMALLOC_CONCAT({0, 0}) #undef JEMALLOC_H_STRUCTS /******************************************************************************/ #define JEMALLOC_H_EXTERNS extern bool opt_abort; extern bool opt_junk; extern size_t opt_quarantine; extern bool opt_redzone; extern bool opt_utrace; extern bool opt_valgrind; extern bool opt_xmalloc; extern bool opt_zero; extern size_t opt_narenas; /* Number of CPUs. */ extern unsigned ncpus; /* Protects arenas initialization (arenas, arenas_total). */ extern malloc_mutex_t arenas_lock; /* * Arenas that are used to service external requests. Not all elements of the * arenas array are necessarily used; arenas are created lazily as needed. * * arenas[0..narenas_auto) are used for automatic multiplexing of threads and * arenas. arenas[narenas_auto..narenas_total) are only used if the application * takes some action to create them and allocate from them. */ extern arena_t **arenas; extern unsigned narenas_total; extern unsigned narenas_auto; /* Read-only after initialization. */ arena_t *arenas_extend(unsigned ind); void arenas_cleanup(void *arg); arena_t *choose_arena_hard(void); void jemalloc_prefork(void); void jemalloc_postfork_parent(void); void jemalloc_postfork_child(void); #include "jemalloc/internal/util.h" #include "jemalloc/internal/atomic.h" #include "jemalloc/internal/prng.h" #include "jemalloc/internal/ckh.h" #include "jemalloc/internal/size_classes.h" #include "jemalloc/internal/stats.h" #include "jemalloc/internal/ctl.h" #include "jemalloc/internal/mutex.h" #include "jemalloc/internal/tsd.h" #include "jemalloc/internal/mb.h" #include "jemalloc/internal/bitmap.h" #include "jemalloc/internal/extent.h" #include "jemalloc/internal/arena.h" #include "jemalloc/internal/base.h" #include "jemalloc/internal/chunk.h" #include "jemalloc/internal/huge.h" #include "jemalloc/internal/rtree.h" #include "jemalloc/internal/tcache.h" #include "jemalloc/internal/hash.h" #include "jemalloc/internal/quarantine.h" #include "jemalloc/internal/prof.h" #undef JEMALLOC_H_EXTERNS /******************************************************************************/ #define JEMALLOC_H_INLINES #include "jemalloc/internal/util.h" #include "jemalloc/internal/atomic.h" #include "jemalloc/internal/prng.h" #include "jemalloc/internal/ckh.h" #include "jemalloc/internal/size_classes.h" #include "jemalloc/internal/stats.h" #include "jemalloc/internal/ctl.h" #include "jemalloc/internal/mutex.h" #include "jemalloc/internal/tsd.h" #include "jemalloc/internal/mb.h" #include "jemalloc/internal/extent.h" #include "jemalloc/internal/base.h" #include "jemalloc/internal/chunk.h" #include "jemalloc/internal/huge.h" #ifndef JEMALLOC_ENABLE_INLINE malloc_tsd_protos(JEMALLOC_ATTR(unused), arenas, arena_t *) size_t s2u(size_t size); size_t sa2u(size_t size, size_t alignment); unsigned narenas_total_get(void); arena_t *choose_arena(arena_t *arena); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_C_)) /* * Map of pthread_self() --> arenas[???], used for selecting an arena to use * for allocations. */ malloc_tsd_externs(arenas, arena_t *) malloc_tsd_funcs(JEMALLOC_INLINE, arenas, arena_t *, NULL, arenas_cleanup) /* * Compute usable size that would result from allocating an object with the * specified size. */ JEMALLOC_INLINE size_t s2u(size_t size) { if (size <= SMALL_MAXCLASS) return (arena_bin_info[SMALL_SIZE2BIN(size)].reg_size); if (size <= arena_maxclass) return (PAGE_CEILING(size)); return (CHUNK_CEILING(size)); } /* * Compute usable size that would result from allocating an object with the * specified size and alignment. */ JEMALLOC_INLINE size_t sa2u(size_t size, size_t alignment) { size_t usize; assert(alignment != 0 && ((alignment - 1) & alignment) == 0); /* * Round size up to the nearest multiple of alignment. * * This done, we can take advantage of the fact that for each small * size class, every object is aligned at the smallest power of two * that is non-zero in the base two representation of the size. For * example: * * Size | Base 2 | Minimum alignment * -----+----------+------------------ * 96 | 1100000 | 32 * 144 | 10100000 | 32 * 192 | 11000000 | 64 */ usize = ALIGNMENT_CEILING(size, alignment); /* * (usize < size) protects against the combination of maximal * alignment and size greater than maximal alignment. */ if (usize < size) { /* size_t overflow. */ return (0); } if (usize <= arena_maxclass && alignment <= PAGE) { if (usize <= SMALL_MAXCLASS) return (arena_bin_info[SMALL_SIZE2BIN(usize)].reg_size); return (PAGE_CEILING(usize)); } else { size_t run_size; /* * We can't achieve subpage alignment, so round up alignment * permanently; it makes later calculations simpler. */ alignment = PAGE_CEILING(alignment); usize = PAGE_CEILING(size); /* * (usize < size) protects against very large sizes within * PAGE of SIZE_T_MAX. * * (usize + alignment < usize) protects against the * combination of maximal alignment and usize large enough * to cause overflow. This is similar to the first overflow * check above, but it needs to be repeated due to the new * usize value, which may now be *equal* to maximal * alignment, whereas before we only detected overflow if the * original size was *greater* than maximal alignment. */ if (usize < size || usize + alignment < usize) { /* size_t overflow. */ return (0); } /* * Calculate the size of the over-size run that arena_palloc() * would need to allocate in order to guarantee the alignment. * If the run wouldn't fit within a chunk, round up to a huge * allocation size. */ run_size = usize + alignment - PAGE; if (run_size <= arena_maxclass) return (PAGE_CEILING(usize)); return (CHUNK_CEILING(usize)); } } JEMALLOC_INLINE unsigned narenas_total_get(void) { unsigned narenas; malloc_mutex_lock(&arenas_lock); narenas = narenas_total; malloc_mutex_unlock(&arenas_lock); return (narenas); } /* Choose an arena based on a per-thread value. */ JEMALLOC_INLINE arena_t * choose_arena(arena_t *arena) { arena_t *ret; if (arena != NULL) return (arena); if ((ret = *arenas_tsd_get()) == NULL) { ret = choose_arena_hard(); assert(ret != NULL); } return (ret); } #endif #include "jemalloc/internal/bitmap.h" #include "jemalloc/internal/rtree.h" /* * Include arena.h twice in order to resolve circular dependencies with * tcache.h. */ #define JEMALLOC_ARENA_INLINE_A #include "jemalloc/internal/arena.h" #undef JEMALLOC_ARENA_INLINE_A #include "jemalloc/internal/tcache.h" #define JEMALLOC_ARENA_INLINE_B #include "jemalloc/internal/arena.h" #undef JEMALLOC_ARENA_INLINE_B #include "jemalloc/internal/hash.h" #include "jemalloc/internal/quarantine.h" #ifndef JEMALLOC_ENABLE_INLINE void *imallocx(size_t size, bool try_tcache, arena_t *arena); void *imalloc(size_t size); void *icallocx(size_t size, bool try_tcache, arena_t *arena); void *icalloc(size_t size); void *ipallocx(size_t usize, size_t alignment, bool zero, bool try_tcache, arena_t *arena); void *ipalloc(size_t usize, size_t alignment, bool zero); size_t isalloc(const void *ptr, bool demote); size_t ivsalloc(const void *ptr, bool demote); size_t u2rz(size_t usize); size_t p2rz(const void *ptr); void idallocx(void *ptr, bool try_tcache); void idalloc(void *ptr); void iqallocx(void *ptr, bool try_tcache); void iqalloc(void *ptr); void *irallocx(void *ptr, size_t size, size_t extra, size_t alignment, bool zero, bool no_move, bool try_tcache_alloc, bool try_tcache_dalloc, arena_t *arena); void *iralloc(void *ptr, size_t size, size_t extra, size_t alignment, bool zero, bool no_move); malloc_tsd_protos(JEMALLOC_ATTR(unused), thread_allocated, thread_allocated_t) #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_C_)) JEMALLOC_INLINE void * imallocx(size_t size, bool try_tcache, arena_t *arena) { assert(size != 0); if (size <= arena_maxclass) return (arena_malloc(arena, size, false, try_tcache)); else return (huge_malloc(size, false)); } JEMALLOC_INLINE void * imalloc(size_t size) { return (imallocx(size, true, NULL)); } JEMALLOC_INLINE void * icallocx(size_t size, bool try_tcache, arena_t *arena) { if (size <= arena_maxclass) return (arena_malloc(arena, size, true, try_tcache)); else return (huge_malloc(size, true)); } JEMALLOC_INLINE void * icalloc(size_t size) { return (icallocx(size, true, NULL)); } JEMALLOC_INLINE void * ipallocx(size_t usize, size_t alignment, bool zero, bool try_tcache, arena_t *arena) { void *ret; assert(usize != 0); assert(usize == sa2u(usize, alignment)); if (usize <= arena_maxclass && alignment <= PAGE) ret = arena_malloc(arena, usize, zero, try_tcache); else { if (usize <= arena_maxclass) { ret = arena_palloc(choose_arena(arena), usize, alignment, zero); } else if (alignment <= chunksize) ret = huge_malloc(usize, zero); else ret = huge_palloc(usize, alignment, zero); } assert(ALIGNMENT_ADDR2BASE(ret, alignment) == ret); return (ret); } JEMALLOC_INLINE void * ipalloc(size_t usize, size_t alignment, bool zero) { return (ipallocx(usize, alignment, zero, true, NULL)); } /* * Typical usage: * void *ptr = [...] * size_t sz = isalloc(ptr, config_prof); */ JEMALLOC_INLINE size_t isalloc(const void *ptr, bool demote) { size_t ret; arena_chunk_t *chunk; assert(ptr != NULL); /* Demotion only makes sense if config_prof is true. */ assert(config_prof || demote == false); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); if (chunk != ptr) ret = arena_salloc(ptr, demote); else ret = huge_salloc(ptr); return (ret); } JEMALLOC_INLINE size_t ivsalloc(const void *ptr, bool demote) { /* Return 0 if ptr is not within a chunk managed by jemalloc. */ if (rtree_get(chunks_rtree, (uintptr_t)CHUNK_ADDR2BASE(ptr)) == NULL) return (0); return (isalloc(ptr, demote)); } JEMALLOC_INLINE size_t u2rz(size_t usize) { size_t ret; if (usize <= SMALL_MAXCLASS) { size_t binind = SMALL_SIZE2BIN(usize); ret = arena_bin_info[binind].redzone_size; } else ret = 0; return (ret); } JEMALLOC_INLINE size_t p2rz(const void *ptr) { size_t usize = isalloc(ptr, false); return (u2rz(usize)); } JEMALLOC_INLINE void idallocx(void *ptr, bool try_tcache) { arena_chunk_t *chunk; assert(ptr != NULL); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); if (chunk != ptr) arena_dalloc(chunk->arena, chunk, ptr, try_tcache); else huge_dalloc(ptr, true); } JEMALLOC_INLINE void idalloc(void *ptr) { idallocx(ptr, true); } JEMALLOC_INLINE void iqallocx(void *ptr, bool try_tcache) { if (config_fill && opt_quarantine) quarantine(ptr); else idallocx(ptr, try_tcache); } JEMALLOC_INLINE void iqalloc(void *ptr) { iqallocx(ptr, true); } JEMALLOC_INLINE void * irallocx(void *ptr, size_t size, size_t extra, size_t alignment, bool zero, bool no_move, bool try_tcache_alloc, bool try_tcache_dalloc, arena_t *arena) { void *ret; size_t oldsize; assert(ptr != NULL); assert(size != 0); oldsize = isalloc(ptr, config_prof); if (alignment != 0 && ((uintptr_t)ptr & ((uintptr_t)alignment-1)) != 0) { size_t usize, copysize; /* * Existing object alignment is inadequate; allocate new space * and copy. */ if (no_move) return (NULL); usize = sa2u(size + extra, alignment); if (usize == 0) return (NULL); ret = ipallocx(usize, alignment, zero, try_tcache_alloc, arena); if (ret == NULL) { if (extra == 0) return (NULL); /* Try again, without extra this time. */ usize = sa2u(size, alignment); if (usize == 0) return (NULL); ret = ipallocx(usize, alignment, zero, try_tcache_alloc, arena); if (ret == NULL) return (NULL); } /* * Copy at most size bytes (not size+extra), since the caller * has no expectation that the extra bytes will be reliably * preserved. */ copysize = (size < oldsize) ? size : oldsize; memcpy(ret, ptr, copysize); iqallocx(ptr, try_tcache_dalloc); return (ret); } if (no_move) { if (size <= arena_maxclass) { return (arena_ralloc_no_move(ptr, oldsize, size, extra, zero)); } else { return (huge_ralloc_no_move(ptr, oldsize, size, extra)); } } else { if (size + extra <= arena_maxclass) { return (arena_ralloc(arena, ptr, oldsize, size, extra, alignment, zero, try_tcache_alloc, try_tcache_dalloc)); } else { return (huge_ralloc(ptr, oldsize, size, extra, alignment, zero, try_tcache_dalloc)); } } } JEMALLOC_INLINE void * iralloc(void *ptr, size_t size, size_t extra, size_t alignment, bool zero, bool no_move) { return (irallocx(ptr, size, extra, alignment, zero, no_move, true, true, NULL)); } malloc_tsd_externs(thread_allocated, thread_allocated_t) malloc_tsd_funcs(JEMALLOC_INLINE, thread_allocated, thread_allocated_t, THREAD_ALLOCATED_INITIALIZER, malloc_tsd_no_cleanup) #endif #include "jemalloc/internal/prof.h" #undef JEMALLOC_H_INLINES /******************************************************************************/ #endif /* JEMALLOC_INTERNAL_H */ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/mb.h000066400000000000000000000051771220734223100232370ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #ifndef JEMALLOC_ENABLE_INLINE void mb_write(void); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_MB_C_)) #ifdef __i386__ /* * According to the Intel Architecture Software Developer's Manual, current * processors execute instructions in order from the perspective of other * processors in a multiprocessor system, but 1) Intel reserves the right to * change that, and 2) the compiler's optimizer could re-order instructions if * there weren't some form of barrier. Therefore, even if running on an * architecture that does not need memory barriers (everything through at least * i686), an "optimizer barrier" is necessary. */ JEMALLOC_INLINE void mb_write(void) { # if 0 /* This is a true memory barrier. */ asm volatile ("pusha;" "xor %%eax,%%eax;" "cpuid;" "popa;" : /* Outputs. */ : /* Inputs. */ : "memory" /* Clobbers. */ ); #else /* * This is hopefully enough to keep the compiler from reordering * instructions around this one. */ asm volatile ("nop;" : /* Outputs. */ : /* Inputs. */ : "memory" /* Clobbers. */ ); #endif } #elif (defined(__amd64__) || defined(__x86_64__)) JEMALLOC_INLINE void mb_write(void) { asm volatile ("sfence" : /* Outputs. */ : /* Inputs. */ : "memory" /* Clobbers. */ ); } #elif defined(__powerpc__) JEMALLOC_INLINE void mb_write(void) { asm volatile ("eieio" : /* Outputs. */ : /* Inputs. */ : "memory" /* Clobbers. */ ); } #elif defined(__sparc64__) JEMALLOC_INLINE void mb_write(void) { asm volatile ("membar #StoreStore" : /* Outputs. */ : /* Inputs. */ : "memory" /* Clobbers. */ ); } #elif defined(__tile__) JEMALLOC_INLINE void mb_write(void) { __sync_synchronize(); } #else /* * This is much slower than a simple memory barrier, but the semantics of mutex * unlock make this work. */ JEMALLOC_INLINE void mb_write(void) { malloc_mutex_t mtx; malloc_mutex_init(&mtx); malloc_mutex_lock(&mtx); malloc_mutex_unlock(&mtx); } #endif #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/mutex.h000066400000000000000000000051561220734223100240000ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES typedef struct malloc_mutex_s malloc_mutex_t; #ifdef _WIN32 # define MALLOC_MUTEX_INITIALIZER #elif (defined(JEMALLOC_OSSPIN)) # define MALLOC_MUTEX_INITIALIZER {0} #elif (defined(JEMALLOC_MUTEX_INIT_CB)) # define MALLOC_MUTEX_INITIALIZER {PTHREAD_MUTEX_INITIALIZER, NULL} #else # if (defined(PTHREAD_MUTEX_ADAPTIVE_NP) && \ defined(PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)) # define MALLOC_MUTEX_TYPE PTHREAD_MUTEX_ADAPTIVE_NP # define MALLOC_MUTEX_INITIALIZER {PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP} # else # define MALLOC_MUTEX_TYPE PTHREAD_MUTEX_DEFAULT # define MALLOC_MUTEX_INITIALIZER {PTHREAD_MUTEX_INITIALIZER} # endif #endif #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS struct malloc_mutex_s { #ifdef _WIN32 CRITICAL_SECTION lock; #elif (defined(JEMALLOC_OSSPIN)) OSSpinLock lock; #elif (defined(JEMALLOC_MUTEX_INIT_CB)) pthread_mutex_t lock; malloc_mutex_t *postponed_next; #else pthread_mutex_t lock; #endif }; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS #ifdef JEMALLOC_LAZY_LOCK extern bool isthreaded; #else # undef isthreaded /* Undo private_namespace.h definition. */ # define isthreaded true #endif bool malloc_mutex_init(malloc_mutex_t *mutex); void malloc_mutex_prefork(malloc_mutex_t *mutex); void malloc_mutex_postfork_parent(malloc_mutex_t *mutex); void malloc_mutex_postfork_child(malloc_mutex_t *mutex); bool mutex_boot(void); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #ifndef JEMALLOC_ENABLE_INLINE void malloc_mutex_lock(malloc_mutex_t *mutex); void malloc_mutex_unlock(malloc_mutex_t *mutex); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_MUTEX_C_)) JEMALLOC_INLINE void malloc_mutex_lock(malloc_mutex_t *mutex) { if (isthreaded) { #ifdef _WIN32 EnterCriticalSection(&mutex->lock); #elif (defined(JEMALLOC_OSSPIN)) OSSpinLockLock(&mutex->lock); #else pthread_mutex_lock(&mutex->lock); #endif } } JEMALLOC_INLINE void malloc_mutex_unlock(malloc_mutex_t *mutex) { if (isthreaded) { #ifdef _WIN32 LeaveCriticalSection(&mutex->lock); #elif (defined(JEMALLOC_OSSPIN)) OSSpinLockUnlock(&mutex->lock); #else pthread_mutex_unlock(&mutex->lock); #endif } } #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/private_namespace.h000066400000000000000000000465441220734223100263320ustar00rootroot00000000000000#define a0calloc JEMALLOC_N(a0calloc) #define a0free JEMALLOC_N(a0free) #define a0malloc JEMALLOC_N(a0malloc) #define arena_alloc_junk_small JEMALLOC_N(arena_alloc_junk_small) #define arena_bin_index JEMALLOC_N(arena_bin_index) #define arena_bin_info JEMALLOC_N(arena_bin_info) #define arena_boot JEMALLOC_N(arena_boot) #define arena_dalloc JEMALLOC_N(arena_dalloc) #define arena_dalloc_bin JEMALLOC_N(arena_dalloc_bin) #define arena_dalloc_bin_locked JEMALLOC_N(arena_dalloc_bin_locked) #define arena_dalloc_junk_small JEMALLOC_N(arena_dalloc_junk_small) #define arena_dalloc_large JEMALLOC_N(arena_dalloc_large) #define arena_dalloc_large_locked JEMALLOC_N(arena_dalloc_large_locked) #define arena_dalloc_small JEMALLOC_N(arena_dalloc_small) #define arena_dss_prec_get JEMALLOC_N(arena_dss_prec_get) #define arena_dss_prec_set JEMALLOC_N(arena_dss_prec_set) #define arena_malloc JEMALLOC_N(arena_malloc) #define arena_malloc_large JEMALLOC_N(arena_malloc_large) #define arena_malloc_small JEMALLOC_N(arena_malloc_small) #define arena_mapbits_allocated_get JEMALLOC_N(arena_mapbits_allocated_get) #define arena_mapbits_binind_get JEMALLOC_N(arena_mapbits_binind_get) #define arena_mapbits_dirty_get JEMALLOC_N(arena_mapbits_dirty_get) #define arena_mapbits_get JEMALLOC_N(arena_mapbits_get) #define arena_mapbits_large_binind_set JEMALLOC_N(arena_mapbits_large_binind_set) #define arena_mapbits_large_get JEMALLOC_N(arena_mapbits_large_get) #define arena_mapbits_large_set JEMALLOC_N(arena_mapbits_large_set) #define arena_mapbits_large_size_get JEMALLOC_N(arena_mapbits_large_size_get) #define arena_mapbits_small_runind_get JEMALLOC_N(arena_mapbits_small_runind_get) #define arena_mapbits_small_set JEMALLOC_N(arena_mapbits_small_set) #define arena_mapbits_unallocated_set JEMALLOC_N(arena_mapbits_unallocated_set) #define arena_mapbits_unallocated_size_get JEMALLOC_N(arena_mapbits_unallocated_size_get) #define arena_mapbits_unallocated_size_set JEMALLOC_N(arena_mapbits_unallocated_size_set) #define arena_mapbits_unzeroed_get JEMALLOC_N(arena_mapbits_unzeroed_get) #define arena_mapbits_unzeroed_set JEMALLOC_N(arena_mapbits_unzeroed_set) #define arena_mapbitsp_get JEMALLOC_N(arena_mapbitsp_get) #define arena_mapp_get JEMALLOC_N(arena_mapp_get) #define arena_maxclass JEMALLOC_N(arena_maxclass) #define arena_new JEMALLOC_N(arena_new) #define arena_palloc JEMALLOC_N(arena_palloc) #define arena_postfork_child JEMALLOC_N(arena_postfork_child) #define arena_postfork_parent JEMALLOC_N(arena_postfork_parent) #define arena_prefork JEMALLOC_N(arena_prefork) #define arena_prof_accum JEMALLOC_N(arena_prof_accum) #define arena_prof_ctx_get JEMALLOC_N(arena_prof_ctx_get) #define arena_prof_ctx_set JEMALLOC_N(arena_prof_ctx_set) #define arena_prof_promoted JEMALLOC_N(arena_prof_promoted) #define arena_ptr_small_binind_get JEMALLOC_N(arena_ptr_small_binind_get) #define arena_purge_all JEMALLOC_N(arena_purge_all) #define arena_ralloc JEMALLOC_N(arena_ralloc) #define arena_ralloc_no_move JEMALLOC_N(arena_ralloc_no_move) #define arena_run_regind JEMALLOC_N(arena_run_regind) #define arena_salloc JEMALLOC_N(arena_salloc) #define arena_stats_merge JEMALLOC_N(arena_stats_merge) #define arena_tcache_fill_small JEMALLOC_N(arena_tcache_fill_small) #define arenas JEMALLOC_N(arenas) #define arenas_booted JEMALLOC_N(arenas_booted) #define arenas_cleanup JEMALLOC_N(arenas_cleanup) #define arenas_extend JEMALLOC_N(arenas_extend) #define arenas_initialized JEMALLOC_N(arenas_initialized) #define arenas_lock JEMALLOC_N(arenas_lock) #define arenas_tls JEMALLOC_N(arenas_tls) #define arenas_tsd JEMALLOC_N(arenas_tsd) #define arenas_tsd_boot JEMALLOC_N(arenas_tsd_boot) #define arenas_tsd_cleanup_wrapper JEMALLOC_N(arenas_tsd_cleanup_wrapper) #define arenas_tsd_get JEMALLOC_N(arenas_tsd_get) #define arenas_tsd_set JEMALLOC_N(arenas_tsd_set) #define atomic_add_u JEMALLOC_N(atomic_add_u) #define atomic_add_uint32 JEMALLOC_N(atomic_add_uint32) #define atomic_add_uint64 JEMALLOC_N(atomic_add_uint64) #define atomic_add_z JEMALLOC_N(atomic_add_z) #define atomic_sub_u JEMALLOC_N(atomic_sub_u) #define atomic_sub_uint32 JEMALLOC_N(atomic_sub_uint32) #define atomic_sub_uint64 JEMALLOC_N(atomic_sub_uint64) #define atomic_sub_z JEMALLOC_N(atomic_sub_z) #define base_alloc JEMALLOC_N(base_alloc) #define base_boot JEMALLOC_N(base_boot) #define base_calloc JEMALLOC_N(base_calloc) #define base_node_alloc JEMALLOC_N(base_node_alloc) #define base_node_dealloc JEMALLOC_N(base_node_dealloc) #define base_postfork_child JEMALLOC_N(base_postfork_child) #define base_postfork_parent JEMALLOC_N(base_postfork_parent) #define base_prefork JEMALLOC_N(base_prefork) #define bitmap_full JEMALLOC_N(bitmap_full) #define bitmap_get JEMALLOC_N(bitmap_get) #define bitmap_info_init JEMALLOC_N(bitmap_info_init) #define bitmap_info_ngroups JEMALLOC_N(bitmap_info_ngroups) #define bitmap_init JEMALLOC_N(bitmap_init) #define bitmap_set JEMALLOC_N(bitmap_set) #define bitmap_sfu JEMALLOC_N(bitmap_sfu) #define bitmap_size JEMALLOC_N(bitmap_size) #define bitmap_unset JEMALLOC_N(bitmap_unset) #define bt_init JEMALLOC_N(bt_init) #define buferror JEMALLOC_N(buferror) #define choose_arena JEMALLOC_N(choose_arena) #define choose_arena_hard JEMALLOC_N(choose_arena_hard) #define chunk_alloc JEMALLOC_N(chunk_alloc) #define chunk_alloc_dss JEMALLOC_N(chunk_alloc_dss) #define chunk_alloc_mmap JEMALLOC_N(chunk_alloc_mmap) #define chunk_boot JEMALLOC_N(chunk_boot) #define chunk_dealloc JEMALLOC_N(chunk_dealloc) #define chunk_dealloc_mmap JEMALLOC_N(chunk_dealloc_mmap) #define chunk_dss_boot JEMALLOC_N(chunk_dss_boot) #define chunk_dss_postfork_child JEMALLOC_N(chunk_dss_postfork_child) #define chunk_dss_postfork_parent JEMALLOC_N(chunk_dss_postfork_parent) #define chunk_dss_prec_get JEMALLOC_N(chunk_dss_prec_get) #define chunk_dss_prec_set JEMALLOC_N(chunk_dss_prec_set) #define chunk_dss_prefork JEMALLOC_N(chunk_dss_prefork) #define chunk_in_dss JEMALLOC_N(chunk_in_dss) #define chunk_npages JEMALLOC_N(chunk_npages) #define chunk_postfork_child JEMALLOC_N(chunk_postfork_child) #define chunk_postfork_parent JEMALLOC_N(chunk_postfork_parent) #define chunk_prefork JEMALLOC_N(chunk_prefork) #define chunk_unmap JEMALLOC_N(chunk_unmap) #define chunks_mtx JEMALLOC_N(chunks_mtx) #define chunks_rtree JEMALLOC_N(chunks_rtree) #define chunksize JEMALLOC_N(chunksize) #define chunksize_mask JEMALLOC_N(chunksize_mask) #define ckh_bucket_search JEMALLOC_N(ckh_bucket_search) #define ckh_count JEMALLOC_N(ckh_count) #define ckh_delete JEMALLOC_N(ckh_delete) #define ckh_evict_reloc_insert JEMALLOC_N(ckh_evict_reloc_insert) #define ckh_insert JEMALLOC_N(ckh_insert) #define ckh_isearch JEMALLOC_N(ckh_isearch) #define ckh_iter JEMALLOC_N(ckh_iter) #define ckh_new JEMALLOC_N(ckh_new) #define ckh_pointer_hash JEMALLOC_N(ckh_pointer_hash) #define ckh_pointer_keycomp JEMALLOC_N(ckh_pointer_keycomp) #define ckh_rebuild JEMALLOC_N(ckh_rebuild) #define ckh_remove JEMALLOC_N(ckh_remove) #define ckh_search JEMALLOC_N(ckh_search) #define ckh_string_hash JEMALLOC_N(ckh_string_hash) #define ckh_string_keycomp JEMALLOC_N(ckh_string_keycomp) #define ckh_try_bucket_insert JEMALLOC_N(ckh_try_bucket_insert) #define ckh_try_insert JEMALLOC_N(ckh_try_insert) #define ctl_boot JEMALLOC_N(ctl_boot) #define ctl_bymib JEMALLOC_N(ctl_bymib) #define ctl_byname JEMALLOC_N(ctl_byname) #define ctl_nametomib JEMALLOC_N(ctl_nametomib) #define ctl_postfork_child JEMALLOC_N(ctl_postfork_child) #define ctl_postfork_parent JEMALLOC_N(ctl_postfork_parent) #define ctl_prefork JEMALLOC_N(ctl_prefork) #define dss_prec_names JEMALLOC_N(dss_prec_names) #define extent_tree_ad_first JEMALLOC_N(extent_tree_ad_first) #define extent_tree_ad_insert JEMALLOC_N(extent_tree_ad_insert) #define extent_tree_ad_iter JEMALLOC_N(extent_tree_ad_iter) #define extent_tree_ad_iter_recurse JEMALLOC_N(extent_tree_ad_iter_recurse) #define extent_tree_ad_iter_start JEMALLOC_N(extent_tree_ad_iter_start) #define extent_tree_ad_last JEMALLOC_N(extent_tree_ad_last) #define extent_tree_ad_new JEMALLOC_N(extent_tree_ad_new) #define extent_tree_ad_next JEMALLOC_N(extent_tree_ad_next) #define extent_tree_ad_nsearch JEMALLOC_N(extent_tree_ad_nsearch) #define extent_tree_ad_prev JEMALLOC_N(extent_tree_ad_prev) #define extent_tree_ad_psearch JEMALLOC_N(extent_tree_ad_psearch) #define extent_tree_ad_remove JEMALLOC_N(extent_tree_ad_remove) #define extent_tree_ad_reverse_iter JEMALLOC_N(extent_tree_ad_reverse_iter) #define extent_tree_ad_reverse_iter_recurse JEMALLOC_N(extent_tree_ad_reverse_iter_recurse) #define extent_tree_ad_reverse_iter_start JEMALLOC_N(extent_tree_ad_reverse_iter_start) #define extent_tree_ad_search JEMALLOC_N(extent_tree_ad_search) #define extent_tree_szad_first JEMALLOC_N(extent_tree_szad_first) #define extent_tree_szad_insert JEMALLOC_N(extent_tree_szad_insert) #define extent_tree_szad_iter JEMALLOC_N(extent_tree_szad_iter) #define extent_tree_szad_iter_recurse JEMALLOC_N(extent_tree_szad_iter_recurse) #define extent_tree_szad_iter_start JEMALLOC_N(extent_tree_szad_iter_start) #define extent_tree_szad_last JEMALLOC_N(extent_tree_szad_last) #define extent_tree_szad_new JEMALLOC_N(extent_tree_szad_new) #define extent_tree_szad_next JEMALLOC_N(extent_tree_szad_next) #define extent_tree_szad_nsearch JEMALLOC_N(extent_tree_szad_nsearch) #define extent_tree_szad_prev JEMALLOC_N(extent_tree_szad_prev) #define extent_tree_szad_psearch JEMALLOC_N(extent_tree_szad_psearch) #define extent_tree_szad_remove JEMALLOC_N(extent_tree_szad_remove) #define extent_tree_szad_reverse_iter JEMALLOC_N(extent_tree_szad_reverse_iter) #define extent_tree_szad_reverse_iter_recurse JEMALLOC_N(extent_tree_szad_reverse_iter_recurse) #define extent_tree_szad_reverse_iter_start JEMALLOC_N(extent_tree_szad_reverse_iter_start) #define extent_tree_szad_search JEMALLOC_N(extent_tree_szad_search) #define get_errno JEMALLOC_N(get_errno) #define hash JEMALLOC_N(hash) #define huge_allocated JEMALLOC_N(huge_allocated) #define huge_boot JEMALLOC_N(huge_boot) #define huge_dalloc JEMALLOC_N(huge_dalloc) #define huge_malloc JEMALLOC_N(huge_malloc) #define huge_mtx JEMALLOC_N(huge_mtx) #define huge_ndalloc JEMALLOC_N(huge_ndalloc) #define huge_nmalloc JEMALLOC_N(huge_nmalloc) #define huge_palloc JEMALLOC_N(huge_palloc) #define huge_postfork_child JEMALLOC_N(huge_postfork_child) #define huge_postfork_parent JEMALLOC_N(huge_postfork_parent) #define huge_prefork JEMALLOC_N(huge_prefork) #define huge_prof_ctx_get JEMALLOC_N(huge_prof_ctx_get) #define huge_prof_ctx_set JEMALLOC_N(huge_prof_ctx_set) #define huge_ralloc JEMALLOC_N(huge_ralloc) #define huge_ralloc_no_move JEMALLOC_N(huge_ralloc_no_move) #define huge_salloc JEMALLOC_N(huge_salloc) #define iallocm JEMALLOC_N(iallocm) #define icalloc JEMALLOC_N(icalloc) #define icallocx JEMALLOC_N(icallocx) #define idalloc JEMALLOC_N(idalloc) #define idallocx JEMALLOC_N(idallocx) #define imalloc JEMALLOC_N(imalloc) #define imallocx JEMALLOC_N(imallocx) #define ipalloc JEMALLOC_N(ipalloc) #define ipallocx JEMALLOC_N(ipallocx) #define iqalloc JEMALLOC_N(iqalloc) #define iqallocx JEMALLOC_N(iqallocx) #define iralloc JEMALLOC_N(iralloc) #define irallocx JEMALLOC_N(irallocx) #define isalloc JEMALLOC_N(isalloc) #define isthreaded JEMALLOC_N(isthreaded) #define ivsalloc JEMALLOC_N(ivsalloc) #define jemalloc_postfork_child JEMALLOC_N(jemalloc_postfork_child) #define jemalloc_postfork_parent JEMALLOC_N(jemalloc_postfork_parent) #define jemalloc_prefork JEMALLOC_N(jemalloc_prefork) #define malloc_cprintf JEMALLOC_N(malloc_cprintf) #define malloc_mutex_init JEMALLOC_N(malloc_mutex_init) #define malloc_mutex_lock JEMALLOC_N(malloc_mutex_lock) #define malloc_mutex_postfork_child JEMALLOC_N(malloc_mutex_postfork_child) #define malloc_mutex_postfork_parent JEMALLOC_N(malloc_mutex_postfork_parent) #define malloc_mutex_prefork JEMALLOC_N(malloc_mutex_prefork) #define malloc_mutex_unlock JEMALLOC_N(malloc_mutex_unlock) #define malloc_printf JEMALLOC_N(malloc_printf) #define malloc_snprintf JEMALLOC_N(malloc_snprintf) #define malloc_strtoumax JEMALLOC_N(malloc_strtoumax) #define malloc_tsd_boot JEMALLOC_N(malloc_tsd_boot) #define malloc_tsd_cleanup_register JEMALLOC_N(malloc_tsd_cleanup_register) #define malloc_tsd_dalloc JEMALLOC_N(malloc_tsd_dalloc) #define malloc_tsd_malloc JEMALLOC_N(malloc_tsd_malloc) #define malloc_tsd_no_cleanup JEMALLOC_N(malloc_tsd_no_cleanup) #define malloc_vcprintf JEMALLOC_N(malloc_vcprintf) #define malloc_vsnprintf JEMALLOC_N(malloc_vsnprintf) #define malloc_write JEMALLOC_N(malloc_write) #define map_bias JEMALLOC_N(map_bias) #define mb_write JEMALLOC_N(mb_write) #define mutex_boot JEMALLOC_N(mutex_boot) #define narenas_auto JEMALLOC_N(narenas_auto) #define narenas_total JEMALLOC_N(narenas_total) #define narenas_total_get JEMALLOC_N(narenas_total_get) #define ncpus JEMALLOC_N(ncpus) #define nhbins JEMALLOC_N(nhbins) #define opt_abort JEMALLOC_N(opt_abort) #define opt_junk JEMALLOC_N(opt_junk) #define opt_lg_chunk JEMALLOC_N(opt_lg_chunk) #define opt_lg_dirty_mult JEMALLOC_N(opt_lg_dirty_mult) #define opt_lg_prof_interval JEMALLOC_N(opt_lg_prof_interval) #define opt_lg_prof_sample JEMALLOC_N(opt_lg_prof_sample) #define opt_lg_tcache_max JEMALLOC_N(opt_lg_tcache_max) #define opt_narenas JEMALLOC_N(opt_narenas) #define opt_prof JEMALLOC_N(opt_prof) #define opt_prof_accum JEMALLOC_N(opt_prof_accum) #define opt_prof_active JEMALLOC_N(opt_prof_active) #define opt_prof_final JEMALLOC_N(opt_prof_final) #define opt_prof_gdump JEMALLOC_N(opt_prof_gdump) #define opt_prof_leak JEMALLOC_N(opt_prof_leak) #define opt_prof_prefix JEMALLOC_N(opt_prof_prefix) #define opt_quarantine JEMALLOC_N(opt_quarantine) #define opt_redzone JEMALLOC_N(opt_redzone) #define opt_stats_print JEMALLOC_N(opt_stats_print) #define opt_tcache JEMALLOC_N(opt_tcache) #define opt_utrace JEMALLOC_N(opt_utrace) #define opt_valgrind JEMALLOC_N(opt_valgrind) #define opt_xmalloc JEMALLOC_N(opt_xmalloc) #define opt_zero JEMALLOC_N(opt_zero) #define p2rz JEMALLOC_N(p2rz) #define pages_purge JEMALLOC_N(pages_purge) #define pow2_ceil JEMALLOC_N(pow2_ceil) #define prof_backtrace JEMALLOC_N(prof_backtrace) #define prof_boot0 JEMALLOC_N(prof_boot0) #define prof_boot1 JEMALLOC_N(prof_boot1) #define prof_boot2 JEMALLOC_N(prof_boot2) #define prof_ctx_get JEMALLOC_N(prof_ctx_get) #define prof_ctx_set JEMALLOC_N(prof_ctx_set) #define prof_free JEMALLOC_N(prof_free) #define prof_gdump JEMALLOC_N(prof_gdump) #define prof_idump JEMALLOC_N(prof_idump) #define prof_interval JEMALLOC_N(prof_interval) #define prof_lookup JEMALLOC_N(prof_lookup) #define prof_malloc JEMALLOC_N(prof_malloc) #define prof_mdump JEMALLOC_N(prof_mdump) #define prof_postfork_child JEMALLOC_N(prof_postfork_child) #define prof_postfork_parent JEMALLOC_N(prof_postfork_parent) #define prof_prefork JEMALLOC_N(prof_prefork) #define prof_promote JEMALLOC_N(prof_promote) #define prof_realloc JEMALLOC_N(prof_realloc) #define prof_sample_accum_update JEMALLOC_N(prof_sample_accum_update) #define prof_sample_threshold_update JEMALLOC_N(prof_sample_threshold_update) #define prof_tdata_booted JEMALLOC_N(prof_tdata_booted) #define prof_tdata_cleanup JEMALLOC_N(prof_tdata_cleanup) #define prof_tdata_get JEMALLOC_N(prof_tdata_get) #define prof_tdata_init JEMALLOC_N(prof_tdata_init) #define prof_tdata_initialized JEMALLOC_N(prof_tdata_initialized) #define prof_tdata_tls JEMALLOC_N(prof_tdata_tls) #define prof_tdata_tsd JEMALLOC_N(prof_tdata_tsd) #define prof_tdata_tsd_boot JEMALLOC_N(prof_tdata_tsd_boot) #define prof_tdata_tsd_cleanup_wrapper JEMALLOC_N(prof_tdata_tsd_cleanup_wrapper) #define prof_tdata_tsd_get JEMALLOC_N(prof_tdata_tsd_get) #define prof_tdata_tsd_set JEMALLOC_N(prof_tdata_tsd_set) #define quarantine JEMALLOC_N(quarantine) #define quarantine_boot JEMALLOC_N(quarantine_boot) #define quarantine_tsd_boot JEMALLOC_N(quarantine_tsd_boot) #define quarantine_tsd_cleanup_wrapper JEMALLOC_N(quarantine_tsd_cleanup_wrapper) #define quarantine_tsd_get JEMALLOC_N(quarantine_tsd_get) #define quarantine_tsd_set JEMALLOC_N(quarantine_tsd_set) #define register_zone JEMALLOC_N(register_zone) #define rtree_get JEMALLOC_N(rtree_get) #define rtree_get_locked JEMALLOC_N(rtree_get_locked) #define rtree_new JEMALLOC_N(rtree_new) #define rtree_postfork_child JEMALLOC_N(rtree_postfork_child) #define rtree_postfork_parent JEMALLOC_N(rtree_postfork_parent) #define rtree_prefork JEMALLOC_N(rtree_prefork) #define rtree_set JEMALLOC_N(rtree_set) #define s2u JEMALLOC_N(s2u) #define sa2u JEMALLOC_N(sa2u) #define set_errno JEMALLOC_N(set_errno) #define stats_cactive JEMALLOC_N(stats_cactive) #define stats_cactive_add JEMALLOC_N(stats_cactive_add) #define stats_cactive_get JEMALLOC_N(stats_cactive_get) #define stats_cactive_sub JEMALLOC_N(stats_cactive_sub) #define stats_chunks JEMALLOC_N(stats_chunks) #define stats_print JEMALLOC_N(stats_print) #define tcache_alloc_easy JEMALLOC_N(tcache_alloc_easy) #define tcache_alloc_large JEMALLOC_N(tcache_alloc_large) #define tcache_alloc_small JEMALLOC_N(tcache_alloc_small) #define tcache_alloc_small_hard JEMALLOC_N(tcache_alloc_small_hard) #define tcache_arena_associate JEMALLOC_N(tcache_arena_associate) #define tcache_arena_dissociate JEMALLOC_N(tcache_arena_dissociate) #define tcache_bin_flush_large JEMALLOC_N(tcache_bin_flush_large) #define tcache_bin_flush_small JEMALLOC_N(tcache_bin_flush_small) #define tcache_bin_info JEMALLOC_N(tcache_bin_info) #define tcache_boot0 JEMALLOC_N(tcache_boot0) #define tcache_boot1 JEMALLOC_N(tcache_boot1) #define tcache_booted JEMALLOC_N(tcache_booted) #define tcache_create JEMALLOC_N(tcache_create) #define tcache_dalloc_large JEMALLOC_N(tcache_dalloc_large) #define tcache_dalloc_small JEMALLOC_N(tcache_dalloc_small) #define tcache_destroy JEMALLOC_N(tcache_destroy) #define tcache_enabled_booted JEMALLOC_N(tcache_enabled_booted) #define tcache_enabled_get JEMALLOC_N(tcache_enabled_get) #define tcache_enabled_initialized JEMALLOC_N(tcache_enabled_initialized) #define tcache_enabled_set JEMALLOC_N(tcache_enabled_set) #define tcache_enabled_tls JEMALLOC_N(tcache_enabled_tls) #define tcache_enabled_tsd JEMALLOC_N(tcache_enabled_tsd) #define tcache_enabled_tsd_boot JEMALLOC_N(tcache_enabled_tsd_boot) #define tcache_enabled_tsd_cleanup_wrapper JEMALLOC_N(tcache_enabled_tsd_cleanup_wrapper) #define tcache_enabled_tsd_get JEMALLOC_N(tcache_enabled_tsd_get) #define tcache_enabled_tsd_set JEMALLOC_N(tcache_enabled_tsd_set) #define tcache_event JEMALLOC_N(tcache_event) #define tcache_event_hard JEMALLOC_N(tcache_event_hard) #define tcache_flush JEMALLOC_N(tcache_flush) #define tcache_get JEMALLOC_N(tcache_get) #define tcache_initialized JEMALLOC_N(tcache_initialized) #define tcache_maxclass JEMALLOC_N(tcache_maxclass) #define tcache_salloc JEMALLOC_N(tcache_salloc) #define tcache_stats_merge JEMALLOC_N(tcache_stats_merge) #define tcache_thread_cleanup JEMALLOC_N(tcache_thread_cleanup) #define tcache_tls JEMALLOC_N(tcache_tls) #define tcache_tsd JEMALLOC_N(tcache_tsd) #define tcache_tsd_boot JEMALLOC_N(tcache_tsd_boot) #define tcache_tsd_cleanup_wrapper JEMALLOC_N(tcache_tsd_cleanup_wrapper) #define tcache_tsd_get JEMALLOC_N(tcache_tsd_get) #define tcache_tsd_set JEMALLOC_N(tcache_tsd_set) #define thread_allocated_booted JEMALLOC_N(thread_allocated_booted) #define thread_allocated_initialized JEMALLOC_N(thread_allocated_initialized) #define thread_allocated_tls JEMALLOC_N(thread_allocated_tls) #define thread_allocated_tsd JEMALLOC_N(thread_allocated_tsd) #define thread_allocated_tsd_boot JEMALLOC_N(thread_allocated_tsd_boot) #define thread_allocated_tsd_cleanup_wrapper JEMALLOC_N(thread_allocated_tsd_cleanup_wrapper) #define thread_allocated_tsd_get JEMALLOC_N(thread_allocated_tsd_get) #define thread_allocated_tsd_set JEMALLOC_N(thread_allocated_tsd_set) #define u2rz JEMALLOC_N(u2rz) redis-2.6.16/deps/jemalloc/include/jemalloc/internal/prng.h000066400000000000000000000037411220734223100236020ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES /* * Simple linear congruential pseudo-random number generator: * * prng(y) = (a*x + c) % m * * where the following constants ensure maximal period: * * a == Odd number (relatively prime to 2^n), and (a-1) is a multiple of 4. * c == Odd number (relatively prime to 2^n). * m == 2^32 * * See Knuth's TAOCP 3rd Ed., Vol. 2, pg. 17 for details on these constraints. * * This choice of m has the disadvantage that the quality of the bits is * proportional to bit position. For example. the lowest bit has a cycle of 2, * the next has a cycle of 4, etc. For this reason, we prefer to use the upper * bits. * * Macro parameters: * uint32_t r : Result. * unsigned lg_range : (0..32], number of least significant bits to return. * uint32_t state : Seed value. * const uint32_t a, c : See above discussion. */ #define prng32(r, lg_range, state, a, c) do { \ assert(lg_range > 0); \ assert(lg_range <= 32); \ \ r = (state * (a)) + (c); \ state = r; \ r >>= (32 - lg_range); \ } while (false) /* Same as prng32(), but 64 bits of pseudo-randomness, using uint64_t. */ #define prng64(r, lg_range, state, a, c) do { \ assert(lg_range > 0); \ assert(lg_range <= 64); \ \ r = (state * (a)) + (c); \ state = r; \ r >>= (64 - lg_range); \ } while (false) #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/prof.h000066400000000000000000000406511220734223100236030ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES typedef struct prof_bt_s prof_bt_t; typedef struct prof_cnt_s prof_cnt_t; typedef struct prof_thr_cnt_s prof_thr_cnt_t; typedef struct prof_ctx_s prof_ctx_t; typedef struct prof_tdata_s prof_tdata_t; /* Option defaults. */ #define PROF_PREFIX_DEFAULT "jeprof" #define LG_PROF_SAMPLE_DEFAULT 19 #define LG_PROF_INTERVAL_DEFAULT -1 /* * Hard limit on stack backtrace depth. The version of prof_backtrace() that * is based on __builtin_return_address() necessarily has a hard-coded number * of backtrace frame handlers, and should be kept in sync with this setting. */ #define PROF_BT_MAX 128 /* Maximum number of backtraces to store in each per thread LRU cache. */ #define PROF_TCMAX 1024 /* Initial hash table size. */ #define PROF_CKH_MINITEMS 64 /* Size of memory buffer to use when writing dump files. */ #define PROF_DUMP_BUFSIZE 65536 /* Size of stack-allocated buffer used by prof_printf(). */ #define PROF_PRINTF_BUFSIZE 128 /* * Number of mutexes shared among all ctx's. No space is allocated for these * unless profiling is enabled, so it's okay to over-provision. */ #define PROF_NCTX_LOCKS 1024 /* * prof_tdata pointers close to NULL are used to encode state information that * is used for cleaning up during thread shutdown. */ #define PROF_TDATA_STATE_REINCARNATED ((prof_tdata_t *)(uintptr_t)1) #define PROF_TDATA_STATE_PURGATORY ((prof_tdata_t *)(uintptr_t)2) #define PROF_TDATA_STATE_MAX PROF_TDATA_STATE_PURGATORY #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS struct prof_bt_s { /* Backtrace, stored as len program counters. */ void **vec; unsigned len; }; #ifdef JEMALLOC_PROF_LIBGCC /* Data structure passed to libgcc _Unwind_Backtrace() callback functions. */ typedef struct { prof_bt_t *bt; unsigned nignore; unsigned max; } prof_unwind_data_t; #endif struct prof_cnt_s { /* * Profiling counters. An allocation/deallocation pair can operate on * different prof_thr_cnt_t objects that are linked into the same * prof_ctx_t cnts_ql, so it is possible for the cur* counters to go * negative. In principle it is possible for the *bytes counters to * overflow/underflow, but a general solution would require something * like 128-bit counters; this implementation doesn't bother to solve * that problem. */ int64_t curobjs; int64_t curbytes; uint64_t accumobjs; uint64_t accumbytes; }; struct prof_thr_cnt_s { /* Linkage into prof_ctx_t's cnts_ql. */ ql_elm(prof_thr_cnt_t) cnts_link; /* Linkage into thread's LRU. */ ql_elm(prof_thr_cnt_t) lru_link; /* * Associated context. If a thread frees an object that it did not * allocate, it is possible that the context is not cached in the * thread's hash table, in which case it must be able to look up the * context, insert a new prof_thr_cnt_t into the thread's hash table, * and link it into the prof_ctx_t's cnts_ql. */ prof_ctx_t *ctx; /* * Threads use memory barriers to update the counters. Since there is * only ever one writer, the only challenge is for the reader to get a * consistent read of the counters. * * The writer uses this series of operations: * * 1) Increment epoch to an odd number. * 2) Update counters. * 3) Increment epoch to an even number. * * The reader must assure 1) that the epoch is even while it reads the * counters, and 2) that the epoch doesn't change between the time it * starts and finishes reading the counters. */ unsigned epoch; /* Profiling counters. */ prof_cnt_t cnts; }; struct prof_ctx_s { /* Associated backtrace. */ prof_bt_t *bt; /* Protects nlimbo, cnt_merged, and cnts_ql. */ malloc_mutex_t *lock; /* * Number of threads that currently cause this ctx to be in a state of * limbo due to one of: * - Initializing per thread counters associated with this ctx. * - Preparing to destroy this ctx. * nlimbo must be 1 (single destroyer) in order to safely destroy the * ctx. */ unsigned nlimbo; /* Temporary storage for summation during dump. */ prof_cnt_t cnt_summed; /* When threads exit, they merge their stats into cnt_merged. */ prof_cnt_t cnt_merged; /* * List of profile counters, one for each thread that has allocated in * this context. */ ql_head(prof_thr_cnt_t) cnts_ql; }; struct prof_tdata_s { /* * Hash of (prof_bt_t *)-->(prof_thr_cnt_t *). Each thread keeps a * cache of backtraces, with associated thread-specific prof_thr_cnt_t * objects. Other threads may read the prof_thr_cnt_t contents, but no * others will ever write them. * * Upon thread exit, the thread must merge all the prof_thr_cnt_t * counter data into the associated prof_ctx_t objects, and unlink/free * the prof_thr_cnt_t objects. */ ckh_t bt2cnt; /* LRU for contents of bt2cnt. */ ql_head(prof_thr_cnt_t) lru_ql; /* Backtrace vector, used for calls to prof_backtrace(). */ void **vec; /* Sampling state. */ uint64_t prng_state; uint64_t threshold; uint64_t accum; /* State used to avoid dumping while operating on prof internals. */ bool enq; bool enq_idump; bool enq_gdump; }; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS extern bool opt_prof; /* * Even if opt_prof is true, sampling can be temporarily disabled by setting * opt_prof_active to false. No locking is used when updating opt_prof_active, * so there are no guarantees regarding how long it will take for all threads * to notice state changes. */ extern bool opt_prof_active; extern size_t opt_lg_prof_sample; /* Mean bytes between samples. */ extern ssize_t opt_lg_prof_interval; /* lg(prof_interval). */ extern bool opt_prof_gdump; /* High-water memory dumping. */ extern bool opt_prof_final; /* Final profile dumping. */ extern bool opt_prof_leak; /* Dump leak summary at exit. */ extern bool opt_prof_accum; /* Report cumulative bytes. */ extern char opt_prof_prefix[PATH_MAX + 1]; /* * Profile dump interval, measured in bytes allocated. Each arena triggers a * profile dump when it reaches this threshold. The effect is that the * interval between profile dumps averages prof_interval, though the actual * interval between dumps will tend to be sporadic, and the interval will be a * maximum of approximately (prof_interval * narenas). */ extern uint64_t prof_interval; /* * If true, promote small sampled objects to large objects, since small run * headers do not have embedded profile context pointers. */ extern bool prof_promote; void bt_init(prof_bt_t *bt, void **vec); void prof_backtrace(prof_bt_t *bt, unsigned nignore); prof_thr_cnt_t *prof_lookup(prof_bt_t *bt); void prof_idump(void); bool prof_mdump(const char *filename); void prof_gdump(void); prof_tdata_t *prof_tdata_init(void); void prof_tdata_cleanup(void *arg); void prof_boot0(void); void prof_boot1(void); bool prof_boot2(void); void prof_prefork(void); void prof_postfork_parent(void); void prof_postfork_child(void); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #define PROF_ALLOC_PREP(nignore, size, ret) do { \ prof_tdata_t *prof_tdata; \ prof_bt_t bt; \ \ assert(size == s2u(size)); \ \ prof_tdata = prof_tdata_get(); \ if ((uintptr_t)prof_tdata <= (uintptr_t)PROF_TDATA_STATE_MAX) { \ if (prof_tdata != NULL) \ ret = (prof_thr_cnt_t *)(uintptr_t)1U; \ else \ ret = NULL; \ break; \ } \ \ if (opt_prof_active == false) { \ /* Sampling is currently inactive, so avoid sampling. */\ ret = (prof_thr_cnt_t *)(uintptr_t)1U; \ } else if (opt_lg_prof_sample == 0) { \ /* Don't bother with sampling logic, since sampling */\ /* interval is 1. */\ bt_init(&bt, prof_tdata->vec); \ prof_backtrace(&bt, nignore); \ ret = prof_lookup(&bt); \ } else { \ if (prof_tdata->threshold == 0) { \ /* Initialize. Seed the prng differently for */\ /* each thread. */\ prof_tdata->prng_state = \ (uint64_t)(uintptr_t)&size; \ prof_sample_threshold_update(prof_tdata); \ } \ \ /* Determine whether to capture a backtrace based on */\ /* whether size is enough for prof_accum to reach */\ /* prof_tdata->threshold. However, delay updating */\ /* these variables until prof_{m,re}alloc(), because */\ /* we don't know for sure that the allocation will */\ /* succeed. */\ /* */\ /* Use subtraction rather than addition to avoid */\ /* potential integer overflow. */\ if (size >= prof_tdata->threshold - \ prof_tdata->accum) { \ bt_init(&bt, prof_tdata->vec); \ prof_backtrace(&bt, nignore); \ ret = prof_lookup(&bt); \ } else \ ret = (prof_thr_cnt_t *)(uintptr_t)1U; \ } \ } while (0) #ifndef JEMALLOC_ENABLE_INLINE malloc_tsd_protos(JEMALLOC_ATTR(unused), prof_tdata, prof_tdata_t *) prof_tdata_t *prof_tdata_get(void); void prof_sample_threshold_update(prof_tdata_t *prof_tdata); prof_ctx_t *prof_ctx_get(const void *ptr); void prof_ctx_set(const void *ptr, prof_ctx_t *ctx); bool prof_sample_accum_update(size_t size); void prof_malloc(const void *ptr, size_t size, prof_thr_cnt_t *cnt); void prof_realloc(const void *ptr, size_t size, prof_thr_cnt_t *cnt, size_t old_size, prof_ctx_t *old_ctx); void prof_free(const void *ptr, size_t size); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_PROF_C_)) /* Thread-specific backtrace cache, used to reduce bt2ctx contention. */ malloc_tsd_externs(prof_tdata, prof_tdata_t *) malloc_tsd_funcs(JEMALLOC_INLINE, prof_tdata, prof_tdata_t *, NULL, prof_tdata_cleanup) JEMALLOC_INLINE prof_tdata_t * prof_tdata_get(void) { prof_tdata_t *prof_tdata; cassert(config_prof); prof_tdata = *prof_tdata_tsd_get(); if ((uintptr_t)prof_tdata <= (uintptr_t)PROF_TDATA_STATE_MAX) { if (prof_tdata == NULL) prof_tdata = prof_tdata_init(); } return (prof_tdata); } JEMALLOC_INLINE void prof_sample_threshold_update(prof_tdata_t *prof_tdata) { uint64_t r; double u; cassert(config_prof); /* * Compute sample threshold as a geometrically distributed random * variable with mean (2^opt_lg_prof_sample). * * __ __ * | log(u) | 1 * prof_tdata->threshold = | -------- |, where p = ------------------- * | log(1-p) | opt_lg_prof_sample * 2 * * For more information on the math, see: * * Non-Uniform Random Variate Generation * Luc Devroye * Springer-Verlag, New York, 1986 * pp 500 * (http://cg.scs.carleton.ca/~luc/rnbookindex.html) */ prng64(r, 53, prof_tdata->prng_state, UINT64_C(6364136223846793005), UINT64_C(1442695040888963407)); u = (double)r * (1.0/9007199254740992.0L); prof_tdata->threshold = (uint64_t)(log(u) / log(1.0 - (1.0 / (double)((uint64_t)1U << opt_lg_prof_sample)))) + (uint64_t)1U; } JEMALLOC_INLINE prof_ctx_t * prof_ctx_get(const void *ptr) { prof_ctx_t *ret; arena_chunk_t *chunk; cassert(config_prof); assert(ptr != NULL); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); if (chunk != ptr) { /* Region. */ ret = arena_prof_ctx_get(ptr); } else ret = huge_prof_ctx_get(ptr); return (ret); } JEMALLOC_INLINE void prof_ctx_set(const void *ptr, prof_ctx_t *ctx) { arena_chunk_t *chunk; cassert(config_prof); assert(ptr != NULL); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); if (chunk != ptr) { /* Region. */ arena_prof_ctx_set(ptr, ctx); } else huge_prof_ctx_set(ptr, ctx); } JEMALLOC_INLINE bool prof_sample_accum_update(size_t size) { prof_tdata_t *prof_tdata; cassert(config_prof); /* Sampling logic is unnecessary if the interval is 1. */ assert(opt_lg_prof_sample != 0); prof_tdata = *prof_tdata_tsd_get(); if ((uintptr_t)prof_tdata <= (uintptr_t)PROF_TDATA_STATE_MAX) return (true); /* Take care to avoid integer overflow. */ if (size >= prof_tdata->threshold - prof_tdata->accum) { prof_tdata->accum -= (prof_tdata->threshold - size); /* Compute new sample threshold. */ prof_sample_threshold_update(prof_tdata); while (prof_tdata->accum >= prof_tdata->threshold) { prof_tdata->accum -= prof_tdata->threshold; prof_sample_threshold_update(prof_tdata); } return (false); } else { prof_tdata->accum += size; return (true); } } JEMALLOC_INLINE void prof_malloc(const void *ptr, size_t size, prof_thr_cnt_t *cnt) { cassert(config_prof); assert(ptr != NULL); assert(size == isalloc(ptr, true)); if (opt_lg_prof_sample != 0) { if (prof_sample_accum_update(size)) { /* * Don't sample. For malloc()-like allocation, it is * always possible to tell in advance how large an * object's usable size will be, so there should never * be a difference between the size passed to * PROF_ALLOC_PREP() and prof_malloc(). */ assert((uintptr_t)cnt == (uintptr_t)1U); } } if ((uintptr_t)cnt > (uintptr_t)1U) { prof_ctx_set(ptr, cnt->ctx); cnt->epoch++; /*********/ mb_write(); /*********/ cnt->cnts.curobjs++; cnt->cnts.curbytes += size; if (opt_prof_accum) { cnt->cnts.accumobjs++; cnt->cnts.accumbytes += size; } /*********/ mb_write(); /*********/ cnt->epoch++; /*********/ mb_write(); /*********/ } else prof_ctx_set(ptr, (prof_ctx_t *)(uintptr_t)1U); } JEMALLOC_INLINE void prof_realloc(const void *ptr, size_t size, prof_thr_cnt_t *cnt, size_t old_size, prof_ctx_t *old_ctx) { prof_thr_cnt_t *told_cnt; cassert(config_prof); assert(ptr != NULL || (uintptr_t)cnt <= (uintptr_t)1U); if (ptr != NULL) { assert(size == isalloc(ptr, true)); if (opt_lg_prof_sample != 0) { if (prof_sample_accum_update(size)) { /* * Don't sample. The size passed to * PROF_ALLOC_PREP() was larger than what * actually got allocated, so a backtrace was * captured for this allocation, even though * its actual size was insufficient to cross * the sample threshold. */ cnt = (prof_thr_cnt_t *)(uintptr_t)1U; } } } if ((uintptr_t)old_ctx > (uintptr_t)1U) { told_cnt = prof_lookup(old_ctx->bt); if (told_cnt == NULL) { /* * It's too late to propagate OOM for this realloc(), * so operate directly on old_cnt->ctx->cnt_merged. */ malloc_mutex_lock(old_ctx->lock); old_ctx->cnt_merged.curobjs--; old_ctx->cnt_merged.curbytes -= old_size; malloc_mutex_unlock(old_ctx->lock); told_cnt = (prof_thr_cnt_t *)(uintptr_t)1U; } } else told_cnt = (prof_thr_cnt_t *)(uintptr_t)1U; if ((uintptr_t)told_cnt > (uintptr_t)1U) told_cnt->epoch++; if ((uintptr_t)cnt > (uintptr_t)1U) { prof_ctx_set(ptr, cnt->ctx); cnt->epoch++; } else if (ptr != NULL) prof_ctx_set(ptr, (prof_ctx_t *)(uintptr_t)1U); /*********/ mb_write(); /*********/ if ((uintptr_t)told_cnt > (uintptr_t)1U) { told_cnt->cnts.curobjs--; told_cnt->cnts.curbytes -= old_size; } if ((uintptr_t)cnt > (uintptr_t)1U) { cnt->cnts.curobjs++; cnt->cnts.curbytes += size; if (opt_prof_accum) { cnt->cnts.accumobjs++; cnt->cnts.accumbytes += size; } } /*********/ mb_write(); /*********/ if ((uintptr_t)told_cnt > (uintptr_t)1U) told_cnt->epoch++; if ((uintptr_t)cnt > (uintptr_t)1U) cnt->epoch++; /*********/ mb_write(); /* Not strictly necessary. */ } JEMALLOC_INLINE void prof_free(const void *ptr, size_t size) { prof_ctx_t *ctx = prof_ctx_get(ptr); cassert(config_prof); if ((uintptr_t)ctx > (uintptr_t)1) { prof_thr_cnt_t *tcnt; assert(size == isalloc(ptr, true)); tcnt = prof_lookup(ctx->bt); if (tcnt != NULL) { tcnt->epoch++; /*********/ mb_write(); /*********/ tcnt->cnts.curobjs--; tcnt->cnts.curbytes -= size; /*********/ mb_write(); /*********/ tcnt->epoch++; /*********/ mb_write(); /*********/ } else { /* * OOM during free() cannot be propagated, so operate * directly on cnt->ctx->cnt_merged. */ malloc_mutex_lock(ctx->lock); ctx->cnt_merged.curobjs--; ctx->cnt_merged.curbytes -= size; malloc_mutex_unlock(ctx->lock); } } } #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/ql.h000066400000000000000000000045051220734223100232470ustar00rootroot00000000000000/* * List definitions. */ #define ql_head(a_type) \ struct { \ a_type *qlh_first; \ } #define ql_head_initializer(a_head) {NULL} #define ql_elm(a_type) qr(a_type) /* List functions. */ #define ql_new(a_head) do { \ (a_head)->qlh_first = NULL; \ } while (0) #define ql_elm_new(a_elm, a_field) qr_new((a_elm), a_field) #define ql_first(a_head) ((a_head)->qlh_first) #define ql_last(a_head, a_field) \ ((ql_first(a_head) != NULL) \ ? qr_prev(ql_first(a_head), a_field) : NULL) #define ql_next(a_head, a_elm, a_field) \ ((ql_last(a_head, a_field) != (a_elm)) \ ? qr_next((a_elm), a_field) : NULL) #define ql_prev(a_head, a_elm, a_field) \ ((ql_first(a_head) != (a_elm)) ? qr_prev((a_elm), a_field) \ : NULL) #define ql_before_insert(a_head, a_qlelm, a_elm, a_field) do { \ qr_before_insert((a_qlelm), (a_elm), a_field); \ if (ql_first(a_head) == (a_qlelm)) { \ ql_first(a_head) = (a_elm); \ } \ } while (0) #define ql_after_insert(a_qlelm, a_elm, a_field) \ qr_after_insert((a_qlelm), (a_elm), a_field) #define ql_head_insert(a_head, a_elm, a_field) do { \ if (ql_first(a_head) != NULL) { \ qr_before_insert(ql_first(a_head), (a_elm), a_field); \ } \ ql_first(a_head) = (a_elm); \ } while (0) #define ql_tail_insert(a_head, a_elm, a_field) do { \ if (ql_first(a_head) != NULL) { \ qr_before_insert(ql_first(a_head), (a_elm), a_field); \ } \ ql_first(a_head) = qr_next((a_elm), a_field); \ } while (0) #define ql_remove(a_head, a_elm, a_field) do { \ if (ql_first(a_head) == (a_elm)) { \ ql_first(a_head) = qr_next(ql_first(a_head), a_field); \ } \ if (ql_first(a_head) != (a_elm)) { \ qr_remove((a_elm), a_field); \ } else { \ ql_first(a_head) = NULL; \ } \ } while (0) #define ql_head_remove(a_head, a_type, a_field) do { \ a_type *t = ql_first(a_head); \ ql_remove((a_head), t, a_field); \ } while (0) #define ql_tail_remove(a_head, a_type, a_field) do { \ a_type *t = ql_last(a_head, a_field); \ ql_remove((a_head), t, a_field); \ } while (0) #define ql_foreach(a_var, a_head, a_field) \ qr_foreach((a_var), ql_first(a_head), a_field) #define ql_reverse_foreach(a_var, a_head, a_field) \ qr_reverse_foreach((a_var), ql_first(a_head), a_field) redis-2.6.16/deps/jemalloc/include/jemalloc/internal/qr.h000066400000000000000000000043171220734223100232560ustar00rootroot00000000000000/* Ring definitions. */ #define qr(a_type) \ struct { \ a_type *qre_next; \ a_type *qre_prev; \ } /* Ring functions. */ #define qr_new(a_qr, a_field) do { \ (a_qr)->a_field.qre_next = (a_qr); \ (a_qr)->a_field.qre_prev = (a_qr); \ } while (0) #define qr_next(a_qr, a_field) ((a_qr)->a_field.qre_next) #define qr_prev(a_qr, a_field) ((a_qr)->a_field.qre_prev) #define qr_before_insert(a_qrelm, a_qr, a_field) do { \ (a_qr)->a_field.qre_prev = (a_qrelm)->a_field.qre_prev; \ (a_qr)->a_field.qre_next = (a_qrelm); \ (a_qr)->a_field.qre_prev->a_field.qre_next = (a_qr); \ (a_qrelm)->a_field.qre_prev = (a_qr); \ } while (0) #define qr_after_insert(a_qrelm, a_qr, a_field) \ do \ { \ (a_qr)->a_field.qre_next = (a_qrelm)->a_field.qre_next; \ (a_qr)->a_field.qre_prev = (a_qrelm); \ (a_qr)->a_field.qre_next->a_field.qre_prev = (a_qr); \ (a_qrelm)->a_field.qre_next = (a_qr); \ } while (0) #define qr_meld(a_qr_a, a_qr_b, a_field) do { \ void *t; \ (a_qr_a)->a_field.qre_prev->a_field.qre_next = (a_qr_b); \ (a_qr_b)->a_field.qre_prev->a_field.qre_next = (a_qr_a); \ t = (a_qr_a)->a_field.qre_prev; \ (a_qr_a)->a_field.qre_prev = (a_qr_b)->a_field.qre_prev; \ (a_qr_b)->a_field.qre_prev = t; \ } while (0) /* qr_meld() and qr_split() are functionally equivalent, so there's no need to * have two copies of the code. */ #define qr_split(a_qr_a, a_qr_b, a_field) \ qr_meld((a_qr_a), (a_qr_b), a_field) #define qr_remove(a_qr, a_field) do { \ (a_qr)->a_field.qre_prev->a_field.qre_next \ = (a_qr)->a_field.qre_next; \ (a_qr)->a_field.qre_next->a_field.qre_prev \ = (a_qr)->a_field.qre_prev; \ (a_qr)->a_field.qre_next = (a_qr); \ (a_qr)->a_field.qre_prev = (a_qr); \ } while (0) #define qr_foreach(var, a_qr, a_field) \ for ((var) = (a_qr); \ (var) != NULL; \ (var) = (((var)->a_field.qre_next != (a_qr)) \ ? (var)->a_field.qre_next : NULL)) #define qr_reverse_foreach(var, a_qr, a_field) \ for ((var) = ((a_qr) != NULL) ? qr_prev(a_qr, a_field) : NULL; \ (var) != NULL; \ (var) = (((var) != (a_qr)) \ ? (var)->a_field.qre_prev : NULL)) redis-2.6.16/deps/jemalloc/include/jemalloc/internal/quarantine.h000066400000000000000000000014641220734223100250030ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES /* Default per thread quarantine size if valgrind is enabled. */ #define JEMALLOC_VALGRIND_QUARANTINE_DEFAULT (ZU(1) << 24) #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS void quarantine(void *ptr); bool quarantine_boot(void); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/rb.h000066400000000000000000001102731220734223100232360ustar00rootroot00000000000000/*- ******************************************************************************* * * cpp macro implementation of left-leaning 2-3 red-black trees. Parent * pointers are not used, and color bits are stored in the least significant * bit of right-child pointers (if RB_COMPACT is defined), thus making node * linkage as compact as is possible for red-black trees. * * Usage: * * #include * #include * #define NDEBUG // (Optional, see assert(3).) * #include * #define RB_COMPACT // (Optional, embed color bits in right-child pointers.) * #include * ... * ******************************************************************************* */ #ifndef RB_H_ #define RB_H_ #if 0 __FBSDID("$FreeBSD: head/lib/libc/stdlib/rb.h 204493 2010-02-28 22:57:13Z jasone $"); #endif #ifdef RB_COMPACT /* Node structure. */ #define rb_node(a_type) \ struct { \ a_type *rbn_left; \ a_type *rbn_right_red; \ } #else #define rb_node(a_type) \ struct { \ a_type *rbn_left; \ a_type *rbn_right; \ bool rbn_red; \ } #endif /* Root structure. */ #define rb_tree(a_type) \ struct { \ a_type *rbt_root; \ a_type rbt_nil; \ } /* Left accessors. */ #define rbtn_left_get(a_type, a_field, a_node) \ ((a_node)->a_field.rbn_left) #define rbtn_left_set(a_type, a_field, a_node, a_left) do { \ (a_node)->a_field.rbn_left = a_left; \ } while (0) #ifdef RB_COMPACT /* Right accessors. */ #define rbtn_right_get(a_type, a_field, a_node) \ ((a_type *) (((intptr_t) (a_node)->a_field.rbn_right_red) \ & ((ssize_t)-2))) #define rbtn_right_set(a_type, a_field, a_node, a_right) do { \ (a_node)->a_field.rbn_right_red = (a_type *) (((uintptr_t) a_right) \ | (((uintptr_t) (a_node)->a_field.rbn_right_red) & ((size_t)1))); \ } while (0) /* Color accessors. */ #define rbtn_red_get(a_type, a_field, a_node) \ ((bool) (((uintptr_t) (a_node)->a_field.rbn_right_red) \ & ((size_t)1))) #define rbtn_color_set(a_type, a_field, a_node, a_red) do { \ (a_node)->a_field.rbn_right_red = (a_type *) ((((intptr_t) \ (a_node)->a_field.rbn_right_red) & ((ssize_t)-2)) \ | ((ssize_t)a_red)); \ } while (0) #define rbtn_red_set(a_type, a_field, a_node) do { \ (a_node)->a_field.rbn_right_red = (a_type *) (((uintptr_t) \ (a_node)->a_field.rbn_right_red) | ((size_t)1)); \ } while (0) #define rbtn_black_set(a_type, a_field, a_node) do { \ (a_node)->a_field.rbn_right_red = (a_type *) (((intptr_t) \ (a_node)->a_field.rbn_right_red) & ((ssize_t)-2)); \ } while (0) #else /* Right accessors. */ #define rbtn_right_get(a_type, a_field, a_node) \ ((a_node)->a_field.rbn_right) #define rbtn_right_set(a_type, a_field, a_node, a_right) do { \ (a_node)->a_field.rbn_right = a_right; \ } while (0) /* Color accessors. */ #define rbtn_red_get(a_type, a_field, a_node) \ ((a_node)->a_field.rbn_red) #define rbtn_color_set(a_type, a_field, a_node, a_red) do { \ (a_node)->a_field.rbn_red = (a_red); \ } while (0) #define rbtn_red_set(a_type, a_field, a_node) do { \ (a_node)->a_field.rbn_red = true; \ } while (0) #define rbtn_black_set(a_type, a_field, a_node) do { \ (a_node)->a_field.rbn_red = false; \ } while (0) #endif /* Node initializer. */ #define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \ rbtn_left_set(a_type, a_field, (a_node), &(a_rbt)->rbt_nil); \ rbtn_right_set(a_type, a_field, (a_node), &(a_rbt)->rbt_nil); \ rbtn_red_set(a_type, a_field, (a_node)); \ } while (0) /* Tree initializer. */ #define rb_new(a_type, a_field, a_rbt) do { \ (a_rbt)->rbt_root = &(a_rbt)->rbt_nil; \ rbt_node_new(a_type, a_field, a_rbt, &(a_rbt)->rbt_nil); \ rbtn_black_set(a_type, a_field, &(a_rbt)->rbt_nil); \ } while (0) /* Internal utility macros. */ #define rbtn_first(a_type, a_field, a_rbt, a_root, r_node) do { \ (r_node) = (a_root); \ if ((r_node) != &(a_rbt)->rbt_nil) { \ for (; \ rbtn_left_get(a_type, a_field, (r_node)) != &(a_rbt)->rbt_nil;\ (r_node) = rbtn_left_get(a_type, a_field, (r_node))) { \ } \ } \ } while (0) #define rbtn_last(a_type, a_field, a_rbt, a_root, r_node) do { \ (r_node) = (a_root); \ if ((r_node) != &(a_rbt)->rbt_nil) { \ for (; rbtn_right_get(a_type, a_field, (r_node)) != \ &(a_rbt)->rbt_nil; (r_node) = rbtn_right_get(a_type, a_field, \ (r_node))) { \ } \ } \ } while (0) #define rbtn_rotate_left(a_type, a_field, a_node, r_node) do { \ (r_node) = rbtn_right_get(a_type, a_field, (a_node)); \ rbtn_right_set(a_type, a_field, (a_node), \ rbtn_left_get(a_type, a_field, (r_node))); \ rbtn_left_set(a_type, a_field, (r_node), (a_node)); \ } while (0) #define rbtn_rotate_right(a_type, a_field, a_node, r_node) do { \ (r_node) = rbtn_left_get(a_type, a_field, (a_node)); \ rbtn_left_set(a_type, a_field, (a_node), \ rbtn_right_get(a_type, a_field, (r_node))); \ rbtn_right_set(a_type, a_field, (r_node), (a_node)); \ } while (0) /* * The rb_proto() macro generates function prototypes that correspond to the * functions generated by an equivalently parameterized call to rb_gen(). */ #define rb_proto(a_attr, a_prefix, a_rbt_type, a_type) \ a_attr void \ a_prefix##new(a_rbt_type *rbtree); \ a_attr a_type * \ a_prefix##first(a_rbt_type *rbtree); \ a_attr a_type * \ a_prefix##last(a_rbt_type *rbtree); \ a_attr a_type * \ a_prefix##next(a_rbt_type *rbtree, a_type *node); \ a_attr a_type * \ a_prefix##prev(a_rbt_type *rbtree, a_type *node); \ a_attr a_type * \ a_prefix##search(a_rbt_type *rbtree, a_type *key); \ a_attr a_type * \ a_prefix##nsearch(a_rbt_type *rbtree, a_type *key); \ a_attr a_type * \ a_prefix##psearch(a_rbt_type *rbtree, a_type *key); \ a_attr void \ a_prefix##insert(a_rbt_type *rbtree, a_type *node); \ a_attr void \ a_prefix##remove(a_rbt_type *rbtree, a_type *node); \ a_attr a_type * \ a_prefix##iter(a_rbt_type *rbtree, a_type *start, a_type *(*cb)( \ a_rbt_type *, a_type *, void *), void *arg); \ a_attr a_type * \ a_prefix##reverse_iter(a_rbt_type *rbtree, a_type *start, \ a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg); /* * The rb_gen() macro generates a type-specific red-black tree implementation, * based on the above cpp macros. * * Arguments: * * a_attr : Function attribute for generated functions (ex: static). * a_prefix : Prefix for generated functions (ex: ex_). * a_rb_type : Type for red-black tree data structure (ex: ex_t). * a_type : Type for red-black tree node data structure (ex: ex_node_t). * a_field : Name of red-black tree node linkage (ex: ex_link). * a_cmp : Node comparison function name, with the following prototype: * int (a_cmp *)(a_type *a_node, a_type *a_other); * ^^^^^^ * or a_key * Interpretation of comparision function return values: * -1 : a_node < a_other * 0 : a_node == a_other * 1 : a_node > a_other * In all cases, the a_node or a_key macro argument is the first * argument to the comparison function, which makes it possible * to write comparison functions that treat the first argument * specially. * * Assuming the following setup: * * typedef struct ex_node_s ex_node_t; * struct ex_node_s { * rb_node(ex_node_t) ex_link; * }; * typedef rb_tree(ex_node_t) ex_t; * rb_gen(static, ex_, ex_t, ex_node_t, ex_link, ex_cmp) * * The following API is generated: * * static void * ex_new(ex_t *tree); * Description: Initialize a red-black tree structure. * Args: * tree: Pointer to an uninitialized red-black tree object. * * static ex_node_t * * ex_first(ex_t *tree); * static ex_node_t * * ex_last(ex_t *tree); * Description: Get the first/last node in tree. * Args: * tree: Pointer to an initialized red-black tree object. * Ret: First/last node in tree, or NULL if tree is empty. * * static ex_node_t * * ex_next(ex_t *tree, ex_node_t *node); * static ex_node_t * * ex_prev(ex_t *tree, ex_node_t *node); * Description: Get node's successor/predecessor. * Args: * tree: Pointer to an initialized red-black tree object. * node: A node in tree. * Ret: node's successor/predecessor in tree, or NULL if node is * last/first. * * static ex_node_t * * ex_search(ex_t *tree, ex_node_t *key); * Description: Search for node that matches key. * Args: * tree: Pointer to an initialized red-black tree object. * key : Search key. * Ret: Node in tree that matches key, or NULL if no match. * * static ex_node_t * * ex_nsearch(ex_t *tree, ex_node_t *key); * static ex_node_t * * ex_psearch(ex_t *tree, ex_node_t *key); * Description: Search for node that matches key. If no match is found, * return what would be key's successor/predecessor, were * key in tree. * Args: * tree: Pointer to an initialized red-black tree object. * key : Search key. * Ret: Node in tree that matches key, or if no match, hypothetical node's * successor/predecessor (NULL if no successor/predecessor). * * static void * ex_insert(ex_t *tree, ex_node_t *node); * Description: Insert node into tree. * Args: * tree: Pointer to an initialized red-black tree object. * node: Node to be inserted into tree. * * static void * ex_remove(ex_t *tree, ex_node_t *node); * Description: Remove node from tree. * Args: * tree: Pointer to an initialized red-black tree object. * node: Node in tree to be removed. * * static ex_node_t * * ex_iter(ex_t *tree, ex_node_t *start, ex_node_t *(*cb)(ex_t *, * ex_node_t *, void *), void *arg); * static ex_node_t * * ex_reverse_iter(ex_t *tree, ex_node_t *start, ex_node *(*cb)(ex_t *, * ex_node_t *, void *), void *arg); * Description: Iterate forward/backward over tree, starting at node. If * tree is modified, iteration must be immediately * terminated by the callback function that causes the * modification. * Args: * tree : Pointer to an initialized red-black tree object. * start: Node at which to start iteration, or NULL to start at * first/last node. * cb : Callback function, which is called for each node during * iteration. Under normal circumstances the callback function * should return NULL, which causes iteration to continue. If a * callback function returns non-NULL, iteration is immediately * terminated and the non-NULL return value is returned by the * iterator. This is useful for re-starting iteration after * modifying tree. * arg : Opaque pointer passed to cb(). * Ret: NULL if iteration completed, or the non-NULL callback return value * that caused termination of the iteration. */ #define rb_gen(a_attr, a_prefix, a_rbt_type, a_type, a_field, a_cmp) \ a_attr void \ a_prefix##new(a_rbt_type *rbtree) { \ rb_new(a_type, a_field, rbtree); \ } \ a_attr a_type * \ a_prefix##first(a_rbt_type *rbtree) { \ a_type *ret; \ rbtn_first(a_type, a_field, rbtree, rbtree->rbt_root, ret); \ if (ret == &rbtree->rbt_nil) { \ ret = NULL; \ } \ return (ret); \ } \ a_attr a_type * \ a_prefix##last(a_rbt_type *rbtree) { \ a_type *ret; \ rbtn_last(a_type, a_field, rbtree, rbtree->rbt_root, ret); \ if (ret == &rbtree->rbt_nil) { \ ret = NULL; \ } \ return (ret); \ } \ a_attr a_type * \ a_prefix##next(a_rbt_type *rbtree, a_type *node) { \ a_type *ret; \ if (rbtn_right_get(a_type, a_field, node) != &rbtree->rbt_nil) { \ rbtn_first(a_type, a_field, rbtree, rbtn_right_get(a_type, \ a_field, node), ret); \ } else { \ a_type *tnode = rbtree->rbt_root; \ assert(tnode != &rbtree->rbt_nil); \ ret = &rbtree->rbt_nil; \ while (true) { \ int cmp = (a_cmp)(node, tnode); \ if (cmp < 0) { \ ret = tnode; \ tnode = rbtn_left_get(a_type, a_field, tnode); \ } else if (cmp > 0) { \ tnode = rbtn_right_get(a_type, a_field, tnode); \ } else { \ break; \ } \ assert(tnode != &rbtree->rbt_nil); \ } \ } \ if (ret == &rbtree->rbt_nil) { \ ret = (NULL); \ } \ return (ret); \ } \ a_attr a_type * \ a_prefix##prev(a_rbt_type *rbtree, a_type *node) { \ a_type *ret; \ if (rbtn_left_get(a_type, a_field, node) != &rbtree->rbt_nil) { \ rbtn_last(a_type, a_field, rbtree, rbtn_left_get(a_type, \ a_field, node), ret); \ } else { \ a_type *tnode = rbtree->rbt_root; \ assert(tnode != &rbtree->rbt_nil); \ ret = &rbtree->rbt_nil; \ while (true) { \ int cmp = (a_cmp)(node, tnode); \ if (cmp < 0) { \ tnode = rbtn_left_get(a_type, a_field, tnode); \ } else if (cmp > 0) { \ ret = tnode; \ tnode = rbtn_right_get(a_type, a_field, tnode); \ } else { \ break; \ } \ assert(tnode != &rbtree->rbt_nil); \ } \ } \ if (ret == &rbtree->rbt_nil) { \ ret = (NULL); \ } \ return (ret); \ } \ a_attr a_type * \ a_prefix##search(a_rbt_type *rbtree, a_type *key) { \ a_type *ret; \ int cmp; \ ret = rbtree->rbt_root; \ while (ret != &rbtree->rbt_nil \ && (cmp = (a_cmp)(key, ret)) != 0) { \ if (cmp < 0) { \ ret = rbtn_left_get(a_type, a_field, ret); \ } else { \ ret = rbtn_right_get(a_type, a_field, ret); \ } \ } \ if (ret == &rbtree->rbt_nil) { \ ret = (NULL); \ } \ return (ret); \ } \ a_attr a_type * \ a_prefix##nsearch(a_rbt_type *rbtree, a_type *key) { \ a_type *ret; \ a_type *tnode = rbtree->rbt_root; \ ret = &rbtree->rbt_nil; \ while (tnode != &rbtree->rbt_nil) { \ int cmp = (a_cmp)(key, tnode); \ if (cmp < 0) { \ ret = tnode; \ tnode = rbtn_left_get(a_type, a_field, tnode); \ } else if (cmp > 0) { \ tnode = rbtn_right_get(a_type, a_field, tnode); \ } else { \ ret = tnode; \ break; \ } \ } \ if (ret == &rbtree->rbt_nil) { \ ret = (NULL); \ } \ return (ret); \ } \ a_attr a_type * \ a_prefix##psearch(a_rbt_type *rbtree, a_type *key) { \ a_type *ret; \ a_type *tnode = rbtree->rbt_root; \ ret = &rbtree->rbt_nil; \ while (tnode != &rbtree->rbt_nil) { \ int cmp = (a_cmp)(key, tnode); \ if (cmp < 0) { \ tnode = rbtn_left_get(a_type, a_field, tnode); \ } else if (cmp > 0) { \ ret = tnode; \ tnode = rbtn_right_get(a_type, a_field, tnode); \ } else { \ ret = tnode; \ break; \ } \ } \ if (ret == &rbtree->rbt_nil) { \ ret = (NULL); \ } \ return (ret); \ } \ a_attr void \ a_prefix##insert(a_rbt_type *rbtree, a_type *node) { \ struct { \ a_type *node; \ int cmp; \ } path[sizeof(void *) << 4], *pathp; \ rbt_node_new(a_type, a_field, rbtree, node); \ /* Wind. */ \ path->node = rbtree->rbt_root; \ for (pathp = path; pathp->node != &rbtree->rbt_nil; pathp++) { \ int cmp = pathp->cmp = a_cmp(node, pathp->node); \ assert(cmp != 0); \ if (cmp < 0) { \ pathp[1].node = rbtn_left_get(a_type, a_field, \ pathp->node); \ } else { \ pathp[1].node = rbtn_right_get(a_type, a_field, \ pathp->node); \ } \ } \ pathp->node = node; \ /* Unwind. */ \ for (pathp--; (uintptr_t)pathp >= (uintptr_t)path; pathp--) { \ a_type *cnode = pathp->node; \ if (pathp->cmp < 0) { \ a_type *left = pathp[1].node; \ rbtn_left_set(a_type, a_field, cnode, left); \ if (rbtn_red_get(a_type, a_field, left)) { \ a_type *leftleft = rbtn_left_get(a_type, a_field, left);\ if (rbtn_red_get(a_type, a_field, leftleft)) { \ /* Fix up 4-node. */ \ a_type *tnode; \ rbtn_black_set(a_type, a_field, leftleft); \ rbtn_rotate_right(a_type, a_field, cnode, tnode); \ cnode = tnode; \ } \ } else { \ return; \ } \ } else { \ a_type *right = pathp[1].node; \ rbtn_right_set(a_type, a_field, cnode, right); \ if (rbtn_red_get(a_type, a_field, right)) { \ a_type *left = rbtn_left_get(a_type, a_field, cnode); \ if (rbtn_red_get(a_type, a_field, left)) { \ /* Split 4-node. */ \ rbtn_black_set(a_type, a_field, left); \ rbtn_black_set(a_type, a_field, right); \ rbtn_red_set(a_type, a_field, cnode); \ } else { \ /* Lean left. */ \ a_type *tnode; \ bool tred = rbtn_red_get(a_type, a_field, cnode); \ rbtn_rotate_left(a_type, a_field, cnode, tnode); \ rbtn_color_set(a_type, a_field, tnode, tred); \ rbtn_red_set(a_type, a_field, cnode); \ cnode = tnode; \ } \ } else { \ return; \ } \ } \ pathp->node = cnode; \ } \ /* Set root, and make it black. */ \ rbtree->rbt_root = path->node; \ rbtn_black_set(a_type, a_field, rbtree->rbt_root); \ } \ a_attr void \ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \ struct { \ a_type *node; \ int cmp; \ } *pathp, *nodep, path[sizeof(void *) << 4]; \ /* Wind. */ \ nodep = NULL; /* Silence compiler warning. */ \ path->node = rbtree->rbt_root; \ for (pathp = path; pathp->node != &rbtree->rbt_nil; pathp++) { \ int cmp = pathp->cmp = a_cmp(node, pathp->node); \ if (cmp < 0) { \ pathp[1].node = rbtn_left_get(a_type, a_field, \ pathp->node); \ } else { \ pathp[1].node = rbtn_right_get(a_type, a_field, \ pathp->node); \ if (cmp == 0) { \ /* Find node's successor, in preparation for swap. */ \ pathp->cmp = 1; \ nodep = pathp; \ for (pathp++; pathp->node != &rbtree->rbt_nil; \ pathp++) { \ pathp->cmp = -1; \ pathp[1].node = rbtn_left_get(a_type, a_field, \ pathp->node); \ } \ break; \ } \ } \ } \ assert(nodep->node == node); \ pathp--; \ if (pathp->node != node) { \ /* Swap node with its successor. */ \ bool tred = rbtn_red_get(a_type, a_field, pathp->node); \ rbtn_color_set(a_type, a_field, pathp->node, \ rbtn_red_get(a_type, a_field, node)); \ rbtn_left_set(a_type, a_field, pathp->node, \ rbtn_left_get(a_type, a_field, node)); \ /* If node's successor is its right child, the following code */\ /* will do the wrong thing for the right child pointer. */\ /* However, it doesn't matter, because the pointer will be */\ /* properly set when the successor is pruned. */\ rbtn_right_set(a_type, a_field, pathp->node, \ rbtn_right_get(a_type, a_field, node)); \ rbtn_color_set(a_type, a_field, node, tred); \ /* The pruned leaf node's child pointers are never accessed */\ /* again, so don't bother setting them to nil. */\ nodep->node = pathp->node; \ pathp->node = node; \ if (nodep == path) { \ rbtree->rbt_root = nodep->node; \ } else { \ if (nodep[-1].cmp < 0) { \ rbtn_left_set(a_type, a_field, nodep[-1].node, \ nodep->node); \ } else { \ rbtn_right_set(a_type, a_field, nodep[-1].node, \ nodep->node); \ } \ } \ } else { \ a_type *left = rbtn_left_get(a_type, a_field, node); \ if (left != &rbtree->rbt_nil) { \ /* node has no successor, but it has a left child. */\ /* Splice node out, without losing the left child. */\ assert(rbtn_red_get(a_type, a_field, node) == false); \ assert(rbtn_red_get(a_type, a_field, left)); \ rbtn_black_set(a_type, a_field, left); \ if (pathp == path) { \ rbtree->rbt_root = left; \ } else { \ if (pathp[-1].cmp < 0) { \ rbtn_left_set(a_type, a_field, pathp[-1].node, \ left); \ } else { \ rbtn_right_set(a_type, a_field, pathp[-1].node, \ left); \ } \ } \ return; \ } else if (pathp == path) { \ /* The tree only contained one node. */ \ rbtree->rbt_root = &rbtree->rbt_nil; \ return; \ } \ } \ if (rbtn_red_get(a_type, a_field, pathp->node)) { \ /* Prune red node, which requires no fixup. */ \ assert(pathp[-1].cmp < 0); \ rbtn_left_set(a_type, a_field, pathp[-1].node, \ &rbtree->rbt_nil); \ return; \ } \ /* The node to be pruned is black, so unwind until balance is */\ /* restored. */\ pathp->node = &rbtree->rbt_nil; \ for (pathp--; (uintptr_t)pathp >= (uintptr_t)path; pathp--) { \ assert(pathp->cmp != 0); \ if (pathp->cmp < 0) { \ rbtn_left_set(a_type, a_field, pathp->node, \ pathp[1].node); \ assert(rbtn_red_get(a_type, a_field, pathp[1].node) \ == false); \ if (rbtn_red_get(a_type, a_field, pathp->node)) { \ a_type *right = rbtn_right_get(a_type, a_field, \ pathp->node); \ a_type *rightleft = rbtn_left_get(a_type, a_field, \ right); \ a_type *tnode; \ if (rbtn_red_get(a_type, a_field, rightleft)) { \ /* In the following diagrams, ||, //, and \\ */\ /* indicate the path to the removed node. */\ /* */\ /* || */\ /* pathp(r) */\ /* // \ */\ /* (b) (b) */\ /* / */\ /* (r) */\ /* */\ rbtn_black_set(a_type, a_field, pathp->node); \ rbtn_rotate_right(a_type, a_field, right, tnode); \ rbtn_right_set(a_type, a_field, pathp->node, tnode);\ rbtn_rotate_left(a_type, a_field, pathp->node, \ tnode); \ } else { \ /* || */\ /* pathp(r) */\ /* // \ */\ /* (b) (b) */\ /* / */\ /* (b) */\ /* */\ rbtn_rotate_left(a_type, a_field, pathp->node, \ tnode); \ } \ /* Balance restored, but rotation modified subtree */\ /* root. */\ assert((uintptr_t)pathp > (uintptr_t)path); \ if (pathp[-1].cmp < 0) { \ rbtn_left_set(a_type, a_field, pathp[-1].node, \ tnode); \ } else { \ rbtn_right_set(a_type, a_field, pathp[-1].node, \ tnode); \ } \ return; \ } else { \ a_type *right = rbtn_right_get(a_type, a_field, \ pathp->node); \ a_type *rightleft = rbtn_left_get(a_type, a_field, \ right); \ if (rbtn_red_get(a_type, a_field, rightleft)) { \ /* || */\ /* pathp(b) */\ /* // \ */\ /* (b) (b) */\ /* / */\ /* (r) */\ a_type *tnode; \ rbtn_black_set(a_type, a_field, rightleft); \ rbtn_rotate_right(a_type, a_field, right, tnode); \ rbtn_right_set(a_type, a_field, pathp->node, tnode);\ rbtn_rotate_left(a_type, a_field, pathp->node, \ tnode); \ /* Balance restored, but rotation modified */\ /* subree root, which may actually be the tree */\ /* root. */\ if (pathp == path) { \ /* Set root. */ \ rbtree->rbt_root = tnode; \ } else { \ if (pathp[-1].cmp < 0) { \ rbtn_left_set(a_type, a_field, \ pathp[-1].node, tnode); \ } else { \ rbtn_right_set(a_type, a_field, \ pathp[-1].node, tnode); \ } \ } \ return; \ } else { \ /* || */\ /* pathp(b) */\ /* // \ */\ /* (b) (b) */\ /* / */\ /* (b) */\ a_type *tnode; \ rbtn_red_set(a_type, a_field, pathp->node); \ rbtn_rotate_left(a_type, a_field, pathp->node, \ tnode); \ pathp->node = tnode; \ } \ } \ } else { \ a_type *left; \ rbtn_right_set(a_type, a_field, pathp->node, \ pathp[1].node); \ left = rbtn_left_get(a_type, a_field, pathp->node); \ if (rbtn_red_get(a_type, a_field, left)) { \ a_type *tnode; \ a_type *leftright = rbtn_right_get(a_type, a_field, \ left); \ a_type *leftrightleft = rbtn_left_get(a_type, a_field, \ leftright); \ if (rbtn_red_get(a_type, a_field, leftrightleft)) { \ /* || */\ /* pathp(b) */\ /* / \\ */\ /* (r) (b) */\ /* \ */\ /* (b) */\ /* / */\ /* (r) */\ a_type *unode; \ rbtn_black_set(a_type, a_field, leftrightleft); \ rbtn_rotate_right(a_type, a_field, pathp->node, \ unode); \ rbtn_rotate_right(a_type, a_field, pathp->node, \ tnode); \ rbtn_right_set(a_type, a_field, unode, tnode); \ rbtn_rotate_left(a_type, a_field, unode, tnode); \ } else { \ /* || */\ /* pathp(b) */\ /* / \\ */\ /* (r) (b) */\ /* \ */\ /* (b) */\ /* / */\ /* (b) */\ assert(leftright != &rbtree->rbt_nil); \ rbtn_red_set(a_type, a_field, leftright); \ rbtn_rotate_right(a_type, a_field, pathp->node, \ tnode); \ rbtn_black_set(a_type, a_field, tnode); \ } \ /* Balance restored, but rotation modified subtree */\ /* root, which may actually be the tree root. */\ if (pathp == path) { \ /* Set root. */ \ rbtree->rbt_root = tnode; \ } else { \ if (pathp[-1].cmp < 0) { \ rbtn_left_set(a_type, a_field, pathp[-1].node, \ tnode); \ } else { \ rbtn_right_set(a_type, a_field, pathp[-1].node, \ tnode); \ } \ } \ return; \ } else if (rbtn_red_get(a_type, a_field, pathp->node)) { \ a_type *leftleft = rbtn_left_get(a_type, a_field, left);\ if (rbtn_red_get(a_type, a_field, leftleft)) { \ /* || */\ /* pathp(r) */\ /* / \\ */\ /* (b) (b) */\ /* / */\ /* (r) */\ a_type *tnode; \ rbtn_black_set(a_type, a_field, pathp->node); \ rbtn_red_set(a_type, a_field, left); \ rbtn_black_set(a_type, a_field, leftleft); \ rbtn_rotate_right(a_type, a_field, pathp->node, \ tnode); \ /* Balance restored, but rotation modified */\ /* subtree root. */\ assert((uintptr_t)pathp > (uintptr_t)path); \ if (pathp[-1].cmp < 0) { \ rbtn_left_set(a_type, a_field, pathp[-1].node, \ tnode); \ } else { \ rbtn_right_set(a_type, a_field, pathp[-1].node, \ tnode); \ } \ return; \ } else { \ /* || */\ /* pathp(r) */\ /* / \\ */\ /* (b) (b) */\ /* / */\ /* (b) */\ rbtn_red_set(a_type, a_field, left); \ rbtn_black_set(a_type, a_field, pathp->node); \ /* Balance restored. */ \ return; \ } \ } else { \ a_type *leftleft = rbtn_left_get(a_type, a_field, left);\ if (rbtn_red_get(a_type, a_field, leftleft)) { \ /* || */\ /* pathp(b) */\ /* / \\ */\ /* (b) (b) */\ /* / */\ /* (r) */\ a_type *tnode; \ rbtn_black_set(a_type, a_field, leftleft); \ rbtn_rotate_right(a_type, a_field, pathp->node, \ tnode); \ /* Balance restored, but rotation modified */\ /* subtree root, which may actually be the tree */\ /* root. */\ if (pathp == path) { \ /* Set root. */ \ rbtree->rbt_root = tnode; \ } else { \ if (pathp[-1].cmp < 0) { \ rbtn_left_set(a_type, a_field, \ pathp[-1].node, tnode); \ } else { \ rbtn_right_set(a_type, a_field, \ pathp[-1].node, tnode); \ } \ } \ return; \ } else { \ /* || */\ /* pathp(b) */\ /* / \\ */\ /* (b) (b) */\ /* / */\ /* (b) */\ rbtn_red_set(a_type, a_field, left); \ } \ } \ } \ } \ /* Set root. */ \ rbtree->rbt_root = path->node; \ assert(rbtn_red_get(a_type, a_field, rbtree->rbt_root) == false); \ } \ a_attr a_type * \ a_prefix##iter_recurse(a_rbt_type *rbtree, a_type *node, \ a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \ if (node == &rbtree->rbt_nil) { \ return (&rbtree->rbt_nil); \ } else { \ a_type *ret; \ if ((ret = a_prefix##iter_recurse(rbtree, rbtn_left_get(a_type, \ a_field, node), cb, arg)) != &rbtree->rbt_nil \ || (ret = cb(rbtree, node, arg)) != NULL) { \ return (ret); \ } \ return (a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \ a_field, node), cb, arg)); \ } \ } \ a_attr a_type * \ a_prefix##iter_start(a_rbt_type *rbtree, a_type *start, a_type *node, \ a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \ int cmp = a_cmp(start, node); \ if (cmp < 0) { \ a_type *ret; \ if ((ret = a_prefix##iter_start(rbtree, start, \ rbtn_left_get(a_type, a_field, node), cb, arg)) != \ &rbtree->rbt_nil || (ret = cb(rbtree, node, arg)) != NULL) { \ return (ret); \ } \ return (a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \ a_field, node), cb, arg)); \ } else if (cmp > 0) { \ return (a_prefix##iter_start(rbtree, start, \ rbtn_right_get(a_type, a_field, node), cb, arg)); \ } else { \ a_type *ret; \ if ((ret = cb(rbtree, node, arg)) != NULL) { \ return (ret); \ } \ return (a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \ a_field, node), cb, arg)); \ } \ } \ a_attr a_type * \ a_prefix##iter(a_rbt_type *rbtree, a_type *start, a_type *(*cb)( \ a_rbt_type *, a_type *, void *), void *arg) { \ a_type *ret; \ if (start != NULL) { \ ret = a_prefix##iter_start(rbtree, start, rbtree->rbt_root, \ cb, arg); \ } else { \ ret = a_prefix##iter_recurse(rbtree, rbtree->rbt_root, cb, arg);\ } \ if (ret == &rbtree->rbt_nil) { \ ret = NULL; \ } \ return (ret); \ } \ a_attr a_type * \ a_prefix##reverse_iter_recurse(a_rbt_type *rbtree, a_type *node, \ a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \ if (node == &rbtree->rbt_nil) { \ return (&rbtree->rbt_nil); \ } else { \ a_type *ret; \ if ((ret = a_prefix##reverse_iter_recurse(rbtree, \ rbtn_right_get(a_type, a_field, node), cb, arg)) != \ &rbtree->rbt_nil || (ret = cb(rbtree, node, arg)) != NULL) { \ return (ret); \ } \ return (a_prefix##reverse_iter_recurse(rbtree, \ rbtn_left_get(a_type, a_field, node), cb, arg)); \ } \ } \ a_attr a_type * \ a_prefix##reverse_iter_start(a_rbt_type *rbtree, a_type *start, \ a_type *node, a_type *(*cb)(a_rbt_type *, a_type *, void *), \ void *arg) { \ int cmp = a_cmp(start, node); \ if (cmp > 0) { \ a_type *ret; \ if ((ret = a_prefix##reverse_iter_start(rbtree, start, \ rbtn_right_get(a_type, a_field, node), cb, arg)) != \ &rbtree->rbt_nil || (ret = cb(rbtree, node, arg)) != NULL) { \ return (ret); \ } \ return (a_prefix##reverse_iter_recurse(rbtree, \ rbtn_left_get(a_type, a_field, node), cb, arg)); \ } else if (cmp < 0) { \ return (a_prefix##reverse_iter_start(rbtree, start, \ rbtn_left_get(a_type, a_field, node), cb, arg)); \ } else { \ a_type *ret; \ if ((ret = cb(rbtree, node, arg)) != NULL) { \ return (ret); \ } \ return (a_prefix##reverse_iter_recurse(rbtree, \ rbtn_left_get(a_type, a_field, node), cb, arg)); \ } \ } \ a_attr a_type * \ a_prefix##reverse_iter(a_rbt_type *rbtree, a_type *start, \ a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \ a_type *ret; \ if (start != NULL) { \ ret = a_prefix##reverse_iter_start(rbtree, start, \ rbtree->rbt_root, cb, arg); \ } else { \ ret = a_prefix##reverse_iter_recurse(rbtree, rbtree->rbt_root, \ cb, arg); \ } \ if (ret == &rbtree->rbt_nil) { \ ret = NULL; \ } \ return (ret); \ } #endif /* RB_H_ */ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/rtree.h000066400000000000000000000113761220734223100237600ustar00rootroot00000000000000/* * This radix tree implementation is tailored to the singular purpose of * tracking which chunks are currently owned by jemalloc. This functionality * is mandatory for OS X, where jemalloc must be able to respond to object * ownership queries. * ******************************************************************************* */ #ifdef JEMALLOC_H_TYPES typedef struct rtree_s rtree_t; /* * Size of each radix tree node (must be a power of 2). This impacts tree * depth. */ #if (LG_SIZEOF_PTR == 2) # define RTREE_NODESIZE (1U << 14) #else # define RTREE_NODESIZE CACHELINE #endif #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS struct rtree_s { malloc_mutex_t mutex; void **root; unsigned height; unsigned level2bits[1]; /* Dynamically sized. */ }; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS rtree_t *rtree_new(unsigned bits); void rtree_prefork(rtree_t *rtree); void rtree_postfork_parent(rtree_t *rtree); void rtree_postfork_child(rtree_t *rtree); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #ifndef JEMALLOC_ENABLE_INLINE #ifndef JEMALLOC_DEBUG void *rtree_get_locked(rtree_t *rtree, uintptr_t key); #endif void *rtree_get(rtree_t *rtree, uintptr_t key); bool rtree_set(rtree_t *rtree, uintptr_t key, void *val); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_RTREE_C_)) #define RTREE_GET_GENERATE(f) \ /* The least significant bits of the key are ignored. */ \ JEMALLOC_INLINE void * \ f(rtree_t *rtree, uintptr_t key) \ { \ void *ret; \ uintptr_t subkey; \ unsigned i, lshift, height, bits; \ void **node, **child; \ \ RTREE_LOCK(&rtree->mutex); \ for (i = lshift = 0, height = rtree->height, node = rtree->root;\ i < height - 1; \ i++, lshift += bits, node = child) { \ bits = rtree->level2bits[i]; \ subkey = (key << lshift) >> ((ZU(1) << (LG_SIZEOF_PTR + \ 3)) - bits); \ child = (void**)node[subkey]; \ if (child == NULL) { \ RTREE_UNLOCK(&rtree->mutex); \ return (NULL); \ } \ } \ \ /* \ * node is a leaf, so it contains values rather than node \ * pointers. \ */ \ bits = rtree->level2bits[i]; \ subkey = (key << lshift) >> ((ZU(1) << (LG_SIZEOF_PTR+3)) - \ bits); \ ret = node[subkey]; \ RTREE_UNLOCK(&rtree->mutex); \ \ RTREE_GET_VALIDATE \ return (ret); \ } #ifdef JEMALLOC_DEBUG # define RTREE_LOCK(l) malloc_mutex_lock(l) # define RTREE_UNLOCK(l) malloc_mutex_unlock(l) # define RTREE_GET_VALIDATE RTREE_GET_GENERATE(rtree_get_locked) # undef RTREE_LOCK # undef RTREE_UNLOCK # undef RTREE_GET_VALIDATE #endif #define RTREE_LOCK(l) #define RTREE_UNLOCK(l) #ifdef JEMALLOC_DEBUG /* * Suppose that it were possible for a jemalloc-allocated chunk to be * munmap()ped, followed by a different allocator in another thread re-using * overlapping virtual memory, all without invalidating the cached rtree * value. The result would be a false positive (the rtree would claim that * jemalloc owns memory that it had actually discarded). This scenario * seems impossible, but the following assertion is a prudent sanity check. */ # define RTREE_GET_VALIDATE \ assert(rtree_get_locked(rtree, key) == ret); #else # define RTREE_GET_VALIDATE #endif RTREE_GET_GENERATE(rtree_get) #undef RTREE_LOCK #undef RTREE_UNLOCK #undef RTREE_GET_VALIDATE JEMALLOC_INLINE bool rtree_set(rtree_t *rtree, uintptr_t key, void *val) { uintptr_t subkey; unsigned i, lshift, height, bits; void **node, **child; malloc_mutex_lock(&rtree->mutex); for (i = lshift = 0, height = rtree->height, node = rtree->root; i < height - 1; i++, lshift += bits, node = child) { bits = rtree->level2bits[i]; subkey = (key << lshift) >> ((ZU(1) << (LG_SIZEOF_PTR+3)) - bits); child = (void**)node[subkey]; if (child == NULL) { child = (void**)base_alloc(sizeof(void *) << rtree->level2bits[i+1]); if (child == NULL) { malloc_mutex_unlock(&rtree->mutex); return (true); } memset(child, 0, sizeof(void *) << rtree->level2bits[i+1]); node[subkey] = child; } } /* node is a leaf, so it contains values rather than node pointers. */ bits = rtree->level2bits[i]; subkey = (key << lshift) >> ((ZU(1) << (LG_SIZEOF_PTR+3)) - bits); node[subkey] = val; malloc_mutex_unlock(&rtree->mutex); return (false); } #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/size_classes.sh000077500000000000000000000063461220734223100255150ustar00rootroot00000000000000#!/bin/sh # The following limits are chosen such that they cover all supported platforms. # Range of quanta. lg_qmin=3 lg_qmax=4 # The range of tiny size classes is [2^lg_tmin..2^(lg_q-1)]. lg_tmin=3 # Range of page sizes. lg_pmin=12 lg_pmax=16 pow2() { e=$1 pow2_result=1 while [ ${e} -gt 0 ] ; do pow2_result=$((${pow2_result} + ${pow2_result})) e=$((${e} - 1)) done } cat < 255) # error "Too many small size classes" #endif #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ EOF redis-2.6.16/deps/jemalloc/include/jemalloc/internal/stats.h000066400000000000000000000105101220734223100237620ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES typedef struct tcache_bin_stats_s tcache_bin_stats_t; typedef struct malloc_bin_stats_s malloc_bin_stats_t; typedef struct malloc_large_stats_s malloc_large_stats_t; typedef struct arena_stats_s arena_stats_t; typedef struct chunk_stats_s chunk_stats_t; #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS struct tcache_bin_stats_s { /* * Number of allocation requests that corresponded to the size of this * bin. */ uint64_t nrequests; }; struct malloc_bin_stats_s { /* * Current number of bytes allocated, including objects currently * cached by tcache. */ size_t allocated; /* * Total number of allocation/deallocation requests served directly by * the bin. Note that tcache may allocate an object, then recycle it * many times, resulting many increments to nrequests, but only one * each to nmalloc and ndalloc. */ uint64_t nmalloc; uint64_t ndalloc; /* * Number of allocation requests that correspond to the size of this * bin. This includes requests served by tcache, though tcache only * periodically merges into this counter. */ uint64_t nrequests; /* Number of tcache fills from this bin. */ uint64_t nfills; /* Number of tcache flushes to this bin. */ uint64_t nflushes; /* Total number of runs created for this bin's size class. */ uint64_t nruns; /* * Total number of runs reused by extracting them from the runs tree for * this bin's size class. */ uint64_t reruns; /* Current number of runs in this bin. */ size_t curruns; }; struct malloc_large_stats_s { /* * Total number of allocation/deallocation requests served directly by * the arena. Note that tcache may allocate an object, then recycle it * many times, resulting many increments to nrequests, but only one * each to nmalloc and ndalloc. */ uint64_t nmalloc; uint64_t ndalloc; /* * Number of allocation requests that correspond to this size class. * This includes requests served by tcache, though tcache only * periodically merges into this counter. */ uint64_t nrequests; /* Current number of runs of this size class. */ size_t curruns; }; struct arena_stats_s { /* Number of bytes currently mapped. */ size_t mapped; /* * Total number of purge sweeps, total number of madvise calls made, * and total pages purged in order to keep dirty unused memory under * control. */ uint64_t npurge; uint64_t nmadvise; uint64_t purged; /* Per-size-category statistics. */ size_t allocated_large; uint64_t nmalloc_large; uint64_t ndalloc_large; uint64_t nrequests_large; /* * One element for each possible size class, including sizes that * overlap with bin size classes. This is necessary because ipalloc() * sometimes has to use such large objects in order to assure proper * alignment. */ malloc_large_stats_t *lstats; }; struct chunk_stats_s { /* Number of chunks that were allocated. */ uint64_t nchunks; /* High-water mark for number of chunks allocated. */ size_t highchunks; /* * Current number of chunks allocated. This value isn't maintained for * any other purpose, so keep track of it in order to be able to set * highchunks. */ size_t curchunks; }; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS extern bool opt_stats_print; extern size_t stats_cactive; void stats_print(void (*write)(void *, const char *), void *cbopaque, const char *opts); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #ifndef JEMALLOC_ENABLE_INLINE size_t stats_cactive_get(void); void stats_cactive_add(size_t size); void stats_cactive_sub(size_t size); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_STATS_C_)) JEMALLOC_INLINE size_t stats_cactive_get(void) { return (atomic_read_z(&stats_cactive)); } JEMALLOC_INLINE void stats_cactive_add(size_t size) { atomic_add_z(&stats_cactive, size); } JEMALLOC_INLINE void stats_cactive_sub(size_t size) { atomic_sub_z(&stats_cactive, size); } #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/tcache.h000066400000000000000000000273561220734223100240730ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES typedef struct tcache_bin_info_s tcache_bin_info_t; typedef struct tcache_bin_s tcache_bin_t; typedef struct tcache_s tcache_t; /* * tcache pointers close to NULL are used to encode state information that is * used for two purposes: preventing thread caching on a per thread basis and * cleaning up during thread shutdown. */ #define TCACHE_STATE_DISABLED ((tcache_t *)(uintptr_t)1) #define TCACHE_STATE_REINCARNATED ((tcache_t *)(uintptr_t)2) #define TCACHE_STATE_PURGATORY ((tcache_t *)(uintptr_t)3) #define TCACHE_STATE_MAX TCACHE_STATE_PURGATORY /* * Absolute maximum number of cache slots for each small bin in the thread * cache. This is an additional constraint beyond that imposed as: twice the * number of regions per run for this size class. * * This constant must be an even number. */ #define TCACHE_NSLOTS_SMALL_MAX 200 /* Number of cache slots for large size classes. */ #define TCACHE_NSLOTS_LARGE 20 /* (1U << opt_lg_tcache_max) is used to compute tcache_maxclass. */ #define LG_TCACHE_MAXCLASS_DEFAULT 15 /* * TCACHE_GC_SWEEP is the approximate number of allocation events between * full GC sweeps. Integer rounding may cause the actual number to be * slightly higher, since GC is performed incrementally. */ #define TCACHE_GC_SWEEP 8192 /* Number of tcache allocation/deallocation events between incremental GCs. */ #define TCACHE_GC_INCR \ ((TCACHE_GC_SWEEP / NBINS) + ((TCACHE_GC_SWEEP / NBINS == 0) ? 0 : 1)) #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS typedef enum { tcache_enabled_false = 0, /* Enable cast to/from bool. */ tcache_enabled_true = 1, tcache_enabled_default = 2 } tcache_enabled_t; /* * Read-only information associated with each element of tcache_t's tbins array * is stored separately, mainly to reduce memory usage. */ struct tcache_bin_info_s { unsigned ncached_max; /* Upper limit on ncached. */ }; struct tcache_bin_s { tcache_bin_stats_t tstats; int low_water; /* Min # cached since last GC. */ unsigned lg_fill_div; /* Fill (ncached_max >> lg_fill_div). */ unsigned ncached; /* # of cached objects. */ void **avail; /* Stack of available objects. */ }; struct tcache_s { ql_elm(tcache_t) link; /* Used for aggregating stats. */ uint64_t prof_accumbytes;/* Cleared after arena_prof_accum() */ arena_t *arena; /* This thread's arena. */ unsigned ev_cnt; /* Event count since incremental GC. */ unsigned next_gc_bin; /* Next bin to GC. */ tcache_bin_t tbins[1]; /* Dynamically sized. */ /* * The pointer stacks associated with tbins follow as a contiguous * array. During tcache initialization, the avail pointer in each * element of tbins is initialized to point to the proper offset within * this array. */ }; #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS extern bool opt_tcache; extern ssize_t opt_lg_tcache_max; extern tcache_bin_info_t *tcache_bin_info; /* * Number of tcache bins. There are NBINS small-object bins, plus 0 or more * large-object bins. */ extern size_t nhbins; /* Maximum cached size class. */ extern size_t tcache_maxclass; size_t tcache_salloc(const void *ptr); void tcache_event_hard(tcache_t *tcache); void *tcache_alloc_small_hard(tcache_t *tcache, tcache_bin_t *tbin, size_t binind); void tcache_bin_flush_small(tcache_bin_t *tbin, size_t binind, unsigned rem, tcache_t *tcache); void tcache_bin_flush_large(tcache_bin_t *tbin, size_t binind, unsigned rem, tcache_t *tcache); void tcache_arena_associate(tcache_t *tcache, arena_t *arena); void tcache_arena_dissociate(tcache_t *tcache); tcache_t *tcache_create(arena_t *arena); void tcache_destroy(tcache_t *tcache); void tcache_thread_cleanup(void *arg); void tcache_stats_merge(tcache_t *tcache, arena_t *arena); bool tcache_boot0(void); bool tcache_boot1(void); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #ifndef JEMALLOC_ENABLE_INLINE malloc_tsd_protos(JEMALLOC_ATTR(unused), tcache, tcache_t *) malloc_tsd_protos(JEMALLOC_ATTR(unused), tcache_enabled, tcache_enabled_t) void tcache_event(tcache_t *tcache); void tcache_flush(void); bool tcache_enabled_get(void); tcache_t *tcache_get(bool create); void tcache_enabled_set(bool enabled); void *tcache_alloc_easy(tcache_bin_t *tbin); void *tcache_alloc_small(tcache_t *tcache, size_t size, bool zero); void *tcache_alloc_large(tcache_t *tcache, size_t size, bool zero); void tcache_dalloc_small(tcache_t *tcache, void *ptr, size_t binind); void tcache_dalloc_large(tcache_t *tcache, void *ptr, size_t size); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_TCACHE_C_)) /* Map of thread-specific caches. */ malloc_tsd_externs(tcache, tcache_t *) malloc_tsd_funcs(JEMALLOC_INLINE, tcache, tcache_t *, NULL, tcache_thread_cleanup) /* Per thread flag that allows thread caches to be disabled. */ malloc_tsd_externs(tcache_enabled, tcache_enabled_t) malloc_tsd_funcs(JEMALLOC_INLINE, tcache_enabled, tcache_enabled_t, tcache_enabled_default, malloc_tsd_no_cleanup) JEMALLOC_INLINE void tcache_flush(void) { tcache_t *tcache; cassert(config_tcache); tcache = *tcache_tsd_get(); if ((uintptr_t)tcache <= (uintptr_t)TCACHE_STATE_MAX) return; tcache_destroy(tcache); tcache = NULL; tcache_tsd_set(&tcache); } JEMALLOC_INLINE bool tcache_enabled_get(void) { tcache_enabled_t tcache_enabled; cassert(config_tcache); tcache_enabled = *tcache_enabled_tsd_get(); if (tcache_enabled == tcache_enabled_default) { tcache_enabled = (tcache_enabled_t)opt_tcache; tcache_enabled_tsd_set(&tcache_enabled); } return ((bool)tcache_enabled); } JEMALLOC_INLINE void tcache_enabled_set(bool enabled) { tcache_enabled_t tcache_enabled; tcache_t *tcache; cassert(config_tcache); tcache_enabled = (tcache_enabled_t)enabled; tcache_enabled_tsd_set(&tcache_enabled); tcache = *tcache_tsd_get(); if (enabled) { if (tcache == TCACHE_STATE_DISABLED) { tcache = NULL; tcache_tsd_set(&tcache); } } else /* disabled */ { if (tcache > TCACHE_STATE_MAX) { tcache_destroy(tcache); tcache = NULL; } if (tcache == NULL) { tcache = TCACHE_STATE_DISABLED; tcache_tsd_set(&tcache); } } } JEMALLOC_INLINE tcache_t * tcache_get(bool create) { tcache_t *tcache; if (config_tcache == false) return (NULL); if (config_lazy_lock && isthreaded == false) return (NULL); tcache = *tcache_tsd_get(); if ((uintptr_t)tcache <= (uintptr_t)TCACHE_STATE_MAX) { if (tcache == TCACHE_STATE_DISABLED) return (NULL); if (tcache == NULL) { if (create == false) { /* * Creating a tcache here would cause * allocation as a side effect of free(). * Ordinarily that would be okay since * tcache_create() failure is a soft failure * that doesn't propagate. However, if TLS * data are freed via free() as in glibc, * subtle corruption could result from setting * a TLS variable after its backing memory is * freed. */ return (NULL); } if (tcache_enabled_get() == false) { tcache_enabled_set(false); /* Memoize. */ return (NULL); } return (tcache_create(choose_arena(NULL))); } if (tcache == TCACHE_STATE_PURGATORY) { /* * Make a note that an allocator function was called * after tcache_thread_cleanup() was called. */ tcache = TCACHE_STATE_REINCARNATED; tcache_tsd_set(&tcache); return (NULL); } if (tcache == TCACHE_STATE_REINCARNATED) return (NULL); not_reached(); } return (tcache); } JEMALLOC_INLINE void tcache_event(tcache_t *tcache) { if (TCACHE_GC_INCR == 0) return; tcache->ev_cnt++; assert(tcache->ev_cnt <= TCACHE_GC_INCR); if (tcache->ev_cnt == TCACHE_GC_INCR) tcache_event_hard(tcache); } JEMALLOC_INLINE void * tcache_alloc_easy(tcache_bin_t *tbin) { void *ret; if (tbin->ncached == 0) { tbin->low_water = -1; return (NULL); } tbin->ncached--; if ((int)tbin->ncached < tbin->low_water) tbin->low_water = tbin->ncached; ret = tbin->avail[tbin->ncached]; return (ret); } JEMALLOC_INLINE void * tcache_alloc_small(tcache_t *tcache, size_t size, bool zero) { void *ret; size_t binind; tcache_bin_t *tbin; binind = SMALL_SIZE2BIN(size); assert(binind < NBINS); tbin = &tcache->tbins[binind]; ret = tcache_alloc_easy(tbin); if (ret == NULL) { ret = tcache_alloc_small_hard(tcache, tbin, binind); if (ret == NULL) return (NULL); } assert(tcache_salloc(ret) == arena_bin_info[binind].reg_size); if (zero == false) { if (config_fill) { if (opt_junk) { arena_alloc_junk_small(ret, &arena_bin_info[binind], false); } else if (opt_zero) memset(ret, 0, size); } } else { if (config_fill && opt_junk) { arena_alloc_junk_small(ret, &arena_bin_info[binind], true); } VALGRIND_MAKE_MEM_UNDEFINED(ret, size); memset(ret, 0, size); } if (config_stats) tbin->tstats.nrequests++; if (config_prof) tcache->prof_accumbytes += arena_bin_info[binind].reg_size; tcache_event(tcache); return (ret); } JEMALLOC_INLINE void * tcache_alloc_large(tcache_t *tcache, size_t size, bool zero) { void *ret; size_t binind; tcache_bin_t *tbin; size = PAGE_CEILING(size); assert(size <= tcache_maxclass); binind = NBINS + (size >> LG_PAGE) - 1; assert(binind < nhbins); tbin = &tcache->tbins[binind]; ret = tcache_alloc_easy(tbin); if (ret == NULL) { /* * Only allocate one large object at a time, because it's quite * expensive to create one and not use it. */ ret = arena_malloc_large(tcache->arena, size, zero); if (ret == NULL) return (NULL); } else { if (config_prof && prof_promote && size == PAGE) { arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ret); size_t pageind = (((uintptr_t)ret - (uintptr_t)chunk) >> LG_PAGE); arena_mapbits_large_binind_set(chunk, pageind, BININD_INVALID); } if (zero == false) { if (config_fill) { if (opt_junk) memset(ret, 0xa5, size); else if (opt_zero) memset(ret, 0, size); } } else { VALGRIND_MAKE_MEM_UNDEFINED(ret, size); memset(ret, 0, size); } if (config_stats) tbin->tstats.nrequests++; if (config_prof) tcache->prof_accumbytes += size; } tcache_event(tcache); return (ret); } JEMALLOC_INLINE void tcache_dalloc_small(tcache_t *tcache, void *ptr, size_t binind) { tcache_bin_t *tbin; tcache_bin_info_t *tbin_info; assert(tcache_salloc(ptr) <= SMALL_MAXCLASS); if (config_fill && opt_junk) arena_dalloc_junk_small(ptr, &arena_bin_info[binind]); tbin = &tcache->tbins[binind]; tbin_info = &tcache_bin_info[binind]; if (tbin->ncached == tbin_info->ncached_max) { tcache_bin_flush_small(tbin, binind, (tbin_info->ncached_max >> 1), tcache); } assert(tbin->ncached < tbin_info->ncached_max); tbin->avail[tbin->ncached] = ptr; tbin->ncached++; tcache_event(tcache); } JEMALLOC_INLINE void tcache_dalloc_large(tcache_t *tcache, void *ptr, size_t size) { size_t binind; tcache_bin_t *tbin; tcache_bin_info_t *tbin_info; assert((size & PAGE_MASK) == 0); assert(tcache_salloc(ptr) > SMALL_MAXCLASS); assert(tcache_salloc(ptr) <= tcache_maxclass); binind = NBINS + (size >> LG_PAGE) - 1; if (config_fill && opt_junk) memset(ptr, 0x5a, size); tbin = &tcache->tbins[binind]; tbin_info = &tcache_bin_info[binind]; if (tbin->ncached == tbin_info->ncached_max) { tcache_bin_flush_large(tbin, binind, (tbin_info->ncached_max >> 1), tcache); } assert(tbin->ncached < tbin_info->ncached_max); tbin->avail[tbin->ncached] = ptr; tbin->ncached++; tcache_event(tcache); } #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/tsd.h000066400000000000000000000277041220734223100234330ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES /* Maximum number of malloc_tsd users with cleanup functions. */ #define MALLOC_TSD_CLEANUPS_MAX 8 typedef bool (*malloc_tsd_cleanup_t)(void); /* * TLS/TSD-agnostic macro-based implementation of thread-specific data. There * are four macros that support (at least) three use cases: file-private, * library-private, and library-private inlined. Following is an example * library-private tsd variable: * * In example.h: * typedef struct { * int x; * int y; * } example_t; * #define EX_INITIALIZER JEMALLOC_CONCAT({0, 0}) * malloc_tsd_protos(, example, example_t *) * malloc_tsd_externs(example, example_t *) * In example.c: * malloc_tsd_data(, example, example_t *, EX_INITIALIZER) * malloc_tsd_funcs(, example, example_t *, EX_INITIALIZER, * example_tsd_cleanup) * * The result is a set of generated functions, e.g.: * * bool example_tsd_boot(void) {...} * example_t **example_tsd_get() {...} * void example_tsd_set(example_t **val) {...} * * Note that all of the functions deal in terms of (a_type *) rather than * (a_type) so that it is possible to support non-pointer types (unlike * pthreads TSD). example_tsd_cleanup() is passed an (a_type *) pointer that is * cast to (void *). This means that the cleanup function needs to cast *and* * dereference the function argument, e.g.: * * void * example_tsd_cleanup(void *arg) * { * example_t *example = *(example_t **)arg; * * [...] * if ([want the cleanup function to be called again]) { * example_tsd_set(&example); * } * } * * If example_tsd_set() is called within example_tsd_cleanup(), it will be * called again. This is similar to how pthreads TSD destruction works, except * that pthreads only calls the cleanup function again if the value was set to * non-NULL. */ /* malloc_tsd_protos(). */ #define malloc_tsd_protos(a_attr, a_name, a_type) \ a_attr bool \ a_name##_tsd_boot(void); \ a_attr a_type * \ a_name##_tsd_get(void); \ a_attr void \ a_name##_tsd_set(a_type *val); /* malloc_tsd_externs(). */ #ifdef JEMALLOC_MALLOC_THREAD_CLEANUP #define malloc_tsd_externs(a_name, a_type) \ extern __thread a_type a_name##_tls; \ extern __thread bool a_name##_initialized; \ extern bool a_name##_booted; #elif (defined(JEMALLOC_TLS)) #define malloc_tsd_externs(a_name, a_type) \ extern __thread a_type a_name##_tls; \ extern pthread_key_t a_name##_tsd; \ extern bool a_name##_booted; #elif (defined(_WIN32)) #define malloc_tsd_externs(a_name, a_type) \ extern DWORD a_name##_tsd; \ extern bool a_name##_booted; #else #define malloc_tsd_externs(a_name, a_type) \ extern pthread_key_t a_name##_tsd; \ extern bool a_name##_booted; #endif /* malloc_tsd_data(). */ #ifdef JEMALLOC_MALLOC_THREAD_CLEANUP #define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \ a_attr __thread a_type JEMALLOC_TLS_MODEL \ a_name##_tls = a_initializer; \ a_attr __thread bool JEMALLOC_TLS_MODEL \ a_name##_initialized = false; \ a_attr bool a_name##_booted = false; #elif (defined(JEMALLOC_TLS)) #define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \ a_attr __thread a_type JEMALLOC_TLS_MODEL \ a_name##_tls = a_initializer; \ a_attr pthread_key_t a_name##_tsd; \ a_attr bool a_name##_booted = false; #elif (defined(_WIN32)) #define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \ a_attr DWORD a_name##_tsd; \ a_attr bool a_name##_booted = false; #else #define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \ a_attr pthread_key_t a_name##_tsd; \ a_attr bool a_name##_booted = false; #endif /* malloc_tsd_funcs(). */ #ifdef JEMALLOC_MALLOC_THREAD_CLEANUP #define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \ a_cleanup) \ /* Initialization/cleanup. */ \ a_attr bool \ a_name##_tsd_cleanup_wrapper(void) \ { \ \ if (a_name##_initialized) { \ a_name##_initialized = false; \ a_cleanup(&a_name##_tls); \ } \ return (a_name##_initialized); \ } \ a_attr bool \ a_name##_tsd_boot(void) \ { \ \ if (a_cleanup != malloc_tsd_no_cleanup) { \ malloc_tsd_cleanup_register( \ &a_name##_tsd_cleanup_wrapper); \ } \ a_name##_booted = true; \ return (false); \ } \ /* Get/set. */ \ a_attr a_type * \ a_name##_tsd_get(void) \ { \ \ assert(a_name##_booted); \ return (&a_name##_tls); \ } \ a_attr void \ a_name##_tsd_set(a_type *val) \ { \ \ assert(a_name##_booted); \ a_name##_tls = (*val); \ if (a_cleanup != malloc_tsd_no_cleanup) \ a_name##_initialized = true; \ } #elif (defined(JEMALLOC_TLS)) #define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \ a_cleanup) \ /* Initialization/cleanup. */ \ a_attr bool \ a_name##_tsd_boot(void) \ { \ \ if (a_cleanup != malloc_tsd_no_cleanup) { \ if (pthread_key_create(&a_name##_tsd, a_cleanup) != 0) \ return (true); \ } \ a_name##_booted = true; \ return (false); \ } \ /* Get/set. */ \ a_attr a_type * \ a_name##_tsd_get(void) \ { \ \ assert(a_name##_booted); \ return (&a_name##_tls); \ } \ a_attr void \ a_name##_tsd_set(a_type *val) \ { \ \ assert(a_name##_booted); \ a_name##_tls = (*val); \ if (a_cleanup != malloc_tsd_no_cleanup) { \ if (pthread_setspecific(a_name##_tsd, \ (void *)(&a_name##_tls))) { \ malloc_write(": Error" \ " setting TSD for "#a_name"\n"); \ if (opt_abort) \ abort(); \ } \ } \ } #elif (defined(_WIN32)) #define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \ a_cleanup) \ /* Data structure. */ \ typedef struct { \ bool initialized; \ a_type val; \ } a_name##_tsd_wrapper_t; \ /* Initialization/cleanup. */ \ a_attr bool \ a_name##_tsd_cleanup_wrapper(void) \ { \ a_name##_tsd_wrapper_t *wrapper; \ \ wrapper = (a_name##_tsd_wrapper_t *) TlsGetValue(a_name##_tsd); \ if (wrapper == NULL) \ return (false); \ if (a_cleanup != malloc_tsd_no_cleanup && \ wrapper->initialized) { \ a_type val = wrapper->val; \ a_type tsd_static_data = a_initializer; \ wrapper->initialized = false; \ wrapper->val = tsd_static_data; \ a_cleanup(&val); \ if (wrapper->initialized) { \ /* Trigger another cleanup round. */ \ return (true); \ } \ } \ malloc_tsd_dalloc(wrapper); \ return (false); \ } \ a_attr bool \ a_name##_tsd_boot(void) \ { \ \ a_name##_tsd = TlsAlloc(); \ if (a_name##_tsd == TLS_OUT_OF_INDEXES) \ return (true); \ if (a_cleanup != malloc_tsd_no_cleanup) { \ malloc_tsd_cleanup_register( \ &a_name##_tsd_cleanup_wrapper); \ } \ a_name##_booted = true; \ return (false); \ } \ /* Get/set. */ \ a_attr a_name##_tsd_wrapper_t * \ a_name##_tsd_get_wrapper(void) \ { \ a_name##_tsd_wrapper_t *wrapper = (a_name##_tsd_wrapper_t *) \ TlsGetValue(a_name##_tsd); \ \ if (wrapper == NULL) { \ wrapper = (a_name##_tsd_wrapper_t *) \ malloc_tsd_malloc(sizeof(a_name##_tsd_wrapper_t)); \ if (wrapper == NULL) { \ malloc_write(": Error allocating" \ " TSD for "#a_name"\n"); \ abort(); \ } else { \ static a_type tsd_static_data = a_initializer; \ wrapper->initialized = false; \ wrapper->val = tsd_static_data; \ } \ if (!TlsSetValue(a_name##_tsd, (void *)wrapper)) { \ malloc_write(": Error setting" \ " TSD for "#a_name"\n"); \ abort(); \ } \ } \ return (wrapper); \ } \ a_attr a_type * \ a_name##_tsd_get(void) \ { \ a_name##_tsd_wrapper_t *wrapper; \ \ assert(a_name##_booted); \ wrapper = a_name##_tsd_get_wrapper(); \ return (&wrapper->val); \ } \ a_attr void \ a_name##_tsd_set(a_type *val) \ { \ a_name##_tsd_wrapper_t *wrapper; \ \ assert(a_name##_booted); \ wrapper = a_name##_tsd_get_wrapper(); \ wrapper->val = *(val); \ if (a_cleanup != malloc_tsd_no_cleanup) \ wrapper->initialized = true; \ } #else #define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \ a_cleanup) \ /* Data structure. */ \ typedef struct { \ bool initialized; \ a_type val; \ } a_name##_tsd_wrapper_t; \ /* Initialization/cleanup. */ \ a_attr void \ a_name##_tsd_cleanup_wrapper(void *arg) \ { \ a_name##_tsd_wrapper_t *wrapper = (a_name##_tsd_wrapper_t *)arg;\ \ if (a_cleanup != malloc_tsd_no_cleanup && \ wrapper->initialized) { \ wrapper->initialized = false; \ a_cleanup(&wrapper->val); \ if (wrapper->initialized) { \ /* Trigger another cleanup round. */ \ if (pthread_setspecific(a_name##_tsd, \ (void *)wrapper)) { \ malloc_write(": Error" \ " setting TSD for "#a_name"\n"); \ if (opt_abort) \ abort(); \ } \ return; \ } \ } \ malloc_tsd_dalloc(wrapper); \ } \ a_attr bool \ a_name##_tsd_boot(void) \ { \ \ if (pthread_key_create(&a_name##_tsd, \ a_name##_tsd_cleanup_wrapper) != 0) \ return (true); \ a_name##_booted = true; \ return (false); \ } \ /* Get/set. */ \ a_attr a_name##_tsd_wrapper_t * \ a_name##_tsd_get_wrapper(void) \ { \ a_name##_tsd_wrapper_t *wrapper = (a_name##_tsd_wrapper_t *) \ pthread_getspecific(a_name##_tsd); \ \ if (wrapper == NULL) { \ wrapper = (a_name##_tsd_wrapper_t *) \ malloc_tsd_malloc(sizeof(a_name##_tsd_wrapper_t)); \ if (wrapper == NULL) { \ malloc_write(": Error allocating" \ " TSD for "#a_name"\n"); \ abort(); \ } else { \ static a_type tsd_static_data = a_initializer; \ wrapper->initialized = false; \ wrapper->val = tsd_static_data; \ } \ if (pthread_setspecific(a_name##_tsd, \ (void *)wrapper)) { \ malloc_write(": Error setting" \ " TSD for "#a_name"\n"); \ abort(); \ } \ } \ return (wrapper); \ } \ a_attr a_type * \ a_name##_tsd_get(void) \ { \ a_name##_tsd_wrapper_t *wrapper; \ \ assert(a_name##_booted); \ wrapper = a_name##_tsd_get_wrapper(); \ return (&wrapper->val); \ } \ a_attr void \ a_name##_tsd_set(a_type *val) \ { \ a_name##_tsd_wrapper_t *wrapper; \ \ assert(a_name##_booted); \ wrapper = a_name##_tsd_get_wrapper(); \ wrapper->val = *(val); \ if (a_cleanup != malloc_tsd_no_cleanup) \ wrapper->initialized = true; \ } #endif #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS void *malloc_tsd_malloc(size_t size); void malloc_tsd_dalloc(void *wrapper); void malloc_tsd_no_cleanup(void *); void malloc_tsd_cleanup_register(bool (*f)(void)); void malloc_tsd_boot(void); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/internal/util.h000066400000000000000000000076171220734223100236170ustar00rootroot00000000000000/******************************************************************************/ #ifdef JEMALLOC_H_TYPES /* Size of stack-allocated buffer passed to buferror(). */ #define BUFERROR_BUF 64 /* * Size of stack-allocated buffer used by malloc_{,v,vc}printf(). This must be * large enough for all possible uses within jemalloc. */ #define MALLOC_PRINTF_BUFSIZE 4096 /* * Wrap a cpp argument that contains commas such that it isn't broken up into * multiple arguments. */ #define JEMALLOC_CONCAT(...) __VA_ARGS__ /* * Silence compiler warnings due to uninitialized values. This is used * wherever the compiler fails to recognize that the variable is never used * uninitialized. */ #ifdef JEMALLOC_CC_SILENCE # define JEMALLOC_CC_SILENCE_INIT(v) = v #else # define JEMALLOC_CC_SILENCE_INIT(v) #endif /* * Define a custom assert() in order to reduce the chances of deadlock during * assertion failure. */ #ifndef assert #define assert(e) do { \ if (config_debug && !(e)) { \ malloc_printf( \ ": %s:%d: Failed assertion: \"%s\"\n", \ __FILE__, __LINE__, #e); \ abort(); \ } \ } while (0) #endif /* Use to assert a particular configuration, e.g., cassert(config_debug). */ #define cassert(c) do { \ if ((c) == false) \ assert(false); \ } while (0) #ifndef not_reached #define not_reached() do { \ if (config_debug) { \ malloc_printf( \ ": %s:%d: Unreachable code reached\n", \ __FILE__, __LINE__); \ abort(); \ } \ } while (0) #endif #ifndef not_implemented #define not_implemented() do { \ if (config_debug) { \ malloc_printf(": %s:%d: Not implemented\n", \ __FILE__, __LINE__); \ abort(); \ } \ } while (0) #endif #define assert_not_implemented(e) do { \ if (config_debug && !(e)) \ not_implemented(); \ } while (0) #endif /* JEMALLOC_H_TYPES */ /******************************************************************************/ #ifdef JEMALLOC_H_STRUCTS #endif /* JEMALLOC_H_STRUCTS */ /******************************************************************************/ #ifdef JEMALLOC_H_EXTERNS int buferror(char *buf, size_t buflen); uintmax_t malloc_strtoumax(const char *nptr, char **endptr, int base); void malloc_write(const char *s); /* * malloc_vsnprintf() supports a subset of snprintf(3) that avoids floating * point math. */ int malloc_vsnprintf(char *str, size_t size, const char *format, va_list ap); int malloc_snprintf(char *str, size_t size, const char *format, ...) JEMALLOC_ATTR(format(printf, 3, 4)); void malloc_vcprintf(void (*write_cb)(void *, const char *), void *cbopaque, const char *format, va_list ap); void malloc_cprintf(void (*write)(void *, const char *), void *cbopaque, const char *format, ...) JEMALLOC_ATTR(format(printf, 3, 4)); void malloc_printf(const char *format, ...) JEMALLOC_ATTR(format(printf, 1, 2)); #endif /* JEMALLOC_H_EXTERNS */ /******************************************************************************/ #ifdef JEMALLOC_H_INLINES #ifndef JEMALLOC_ENABLE_INLINE size_t pow2_ceil(size_t x); void malloc_write(const char *s); void set_errno(int errnum); int get_errno(void); #endif #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_UTIL_C_)) /* Compute the smallest power of 2 that is >= x. */ JEMALLOC_INLINE size_t pow2_ceil(size_t x) { x--; x |= x >> 1; x |= x >> 2; x |= x >> 4; x |= x >> 8; x |= x >> 16; #if (LG_SIZEOF_PTR == 3) x |= x >> 32; #endif x++; return (x); } /* Sets error code */ JEMALLOC_INLINE void set_errno(int errnum) { #ifdef _WIN32 SetLastError(errnum); #else errno = errnum; #endif } /* Get last error code */ JEMALLOC_INLINE int get_errno(void) { #ifdef _WIN32 return (GetLastError()); #else return (errno); #endif } #endif #endif /* JEMALLOC_H_INLINES */ /******************************************************************************/ redis-2.6.16/deps/jemalloc/include/jemalloc/jemalloc.h.in000066400000000000000000000120701220734223100232060ustar00rootroot00000000000000#ifndef JEMALLOC_H_ #define JEMALLOC_H_ #ifdef __cplusplus extern "C" { #endif #include #include #define JEMALLOC_VERSION "@jemalloc_version@" #define JEMALLOC_VERSION_MAJOR @jemalloc_version_major@ #define JEMALLOC_VERSION_MINOR @jemalloc_version_minor@ #define JEMALLOC_VERSION_BUGFIX @jemalloc_version_bugfix@ #define JEMALLOC_VERSION_NREV @jemalloc_version_nrev@ #define JEMALLOC_VERSION_GID "@jemalloc_version_gid@" #include "jemalloc_defs@install_suffix@.h" #ifdef JEMALLOC_EXPERIMENTAL #define ALLOCM_LG_ALIGN(la) (la) #if LG_SIZEOF_PTR == 2 #define ALLOCM_ALIGN(a) (ffs(a)-1) #else #define ALLOCM_ALIGN(a) ((a < (size_t)INT_MAX) ? ffs(a)-1 : ffs(a>>32)+31) #endif #define ALLOCM_ZERO ((int)0x40) #define ALLOCM_NO_MOVE ((int)0x80) /* Bias arena index bits so that 0 encodes "ALLOCM_ARENA() unspecified". */ #define ALLOCM_ARENA(a) ((int)(((a)+1) << 8)) #define ALLOCM_SUCCESS 0 #define ALLOCM_ERR_OOM 1 #define ALLOCM_ERR_NOT_MOVED 2 #endif /* * The je_ prefix on the following public symbol declarations is an artifact of * namespace management, and should be omitted in application code unless * JEMALLOC_NO_DEMANGLE is defined (see below). */ extern JEMALLOC_EXPORT const char *je_malloc_conf; extern JEMALLOC_EXPORT void (*je_malloc_message)(void *cbopaque, const char *s); JEMALLOC_EXPORT void *je_malloc(size_t size) JEMALLOC_ATTR(malloc); JEMALLOC_EXPORT void *je_calloc(size_t num, size_t size) JEMALLOC_ATTR(malloc); JEMALLOC_EXPORT int je_posix_memalign(void **memptr, size_t alignment, size_t size) JEMALLOC_ATTR(nonnull(1)); JEMALLOC_EXPORT void *je_aligned_alloc(size_t alignment, size_t size) JEMALLOC_ATTR(malloc); JEMALLOC_EXPORT void *je_realloc(void *ptr, size_t size); JEMALLOC_EXPORT void je_free(void *ptr); #ifdef JEMALLOC_OVERRIDE_MEMALIGN JEMALLOC_EXPORT void * je_memalign(size_t alignment, size_t size) JEMALLOC_ATTR(malloc); #endif #ifdef JEMALLOC_OVERRIDE_VALLOC JEMALLOC_EXPORT void * je_valloc(size_t size) JEMALLOC_ATTR(malloc); #endif JEMALLOC_EXPORT size_t je_malloc_usable_size( JEMALLOC_USABLE_SIZE_CONST void *ptr); JEMALLOC_EXPORT void je_malloc_stats_print(void (*write_cb)(void *, const char *), void *je_cbopaque, const char *opts); JEMALLOC_EXPORT int je_mallctl(const char *name, void *oldp, size_t *oldlenp, void *newp, size_t newlen); JEMALLOC_EXPORT int je_mallctlnametomib(const char *name, size_t *mibp, size_t *miblenp); JEMALLOC_EXPORT int je_mallctlbymib(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen); #ifdef JEMALLOC_EXPERIMENTAL JEMALLOC_EXPORT int je_allocm(void **ptr, size_t *rsize, size_t size, int flags) JEMALLOC_ATTR(nonnull(1)); JEMALLOC_EXPORT int je_rallocm(void **ptr, size_t *rsize, size_t size, size_t extra, int flags) JEMALLOC_ATTR(nonnull(1)); JEMALLOC_EXPORT int je_sallocm(const void *ptr, size_t *rsize, int flags) JEMALLOC_ATTR(nonnull(1)); JEMALLOC_EXPORT int je_dallocm(void *ptr, int flags) JEMALLOC_ATTR(nonnull(1)); JEMALLOC_EXPORT int je_nallocm(size_t *rsize, size_t size, int flags); #endif /* * By default application code must explicitly refer to mangled symbol names, * so that it is possible to use jemalloc in conjunction with another allocator * in the same application. Define JEMALLOC_MANGLE in order to cause automatic * name mangling that matches the API prefixing that happened as a result of * --with-mangling and/or --with-jemalloc-prefix configuration settings. */ #ifdef JEMALLOC_MANGLE #ifndef JEMALLOC_NO_DEMANGLE #define JEMALLOC_NO_DEMANGLE #endif #define malloc_conf je_malloc_conf #define malloc_message je_malloc_message #define malloc je_malloc #define calloc je_calloc #define posix_memalign je_posix_memalign #define aligned_alloc je_aligned_alloc #define realloc je_realloc #define free je_free #define malloc_usable_size je_malloc_usable_size #define malloc_stats_print je_malloc_stats_print #define mallctl je_mallctl #define mallctlnametomib je_mallctlnametomib #define mallctlbymib je_mallctlbymib #define memalign je_memalign #define valloc je_valloc #ifdef JEMALLOC_EXPERIMENTAL #define allocm je_allocm #define rallocm je_rallocm #define sallocm je_sallocm #define dallocm je_dallocm #define nallocm je_nallocm #endif #endif /* * The je_* macros can be used as stable alternative names for the public * jemalloc API if JEMALLOC_NO_DEMANGLE is defined. This is primarily meant * for use in jemalloc itself, but it can be used by application code to * provide isolation from the name mangling specified via --with-mangling * and/or --with-jemalloc-prefix. */ #ifndef JEMALLOC_NO_DEMANGLE #undef je_malloc_conf #undef je_malloc_message #undef je_malloc #undef je_calloc #undef je_posix_memalign #undef je_aligned_alloc #undef je_realloc #undef je_free #undef je_malloc_usable_size #undef je_malloc_stats_print #undef je_mallctl #undef je_mallctlnametomib #undef je_mallctlbymib #undef je_memalign #undef je_valloc #ifdef JEMALLOC_EXPERIMENTAL #undef je_allocm #undef je_rallocm #undef je_sallocm #undef je_dallocm #undef je_nallocm #endif #endif #ifdef __cplusplus }; #endif #endif /* JEMALLOC_H_ */ redis-2.6.16/deps/jemalloc/include/jemalloc/jemalloc_defs.h.in000066400000000000000000000171731220734223100242200ustar00rootroot00000000000000/* * If JEMALLOC_PREFIX is defined via --with-jemalloc-prefix, it will cause all * public APIs to be prefixed. This makes it possible, with some care, to use * multiple allocators simultaneously. */ #undef JEMALLOC_PREFIX #undef JEMALLOC_CPREFIX /* * Name mangling for public symbols is controlled by --with-mangling and * --with-jemalloc-prefix. With default settings the je_ prefix is stripped by * these macro definitions. */ #undef je_malloc_conf #undef je_malloc_message #undef je_malloc #undef je_calloc #undef je_posix_memalign #undef je_aligned_alloc #undef je_realloc #undef je_free #undef je_malloc_usable_size #undef je_malloc_stats_print #undef je_mallctl #undef je_mallctlnametomib #undef je_mallctlbymib #undef je_memalign #undef je_valloc #undef je_allocm #undef je_rallocm #undef je_sallocm #undef je_dallocm #undef je_nallocm /* * JEMALLOC_PRIVATE_NAMESPACE is used as a prefix for all library-private APIs. * For shared libraries, symbol visibility mechanisms prevent these symbols * from being exported, but for static libraries, naming collisions are a real * possibility. */ #undef JEMALLOC_PRIVATE_NAMESPACE #undef JEMALLOC_N /* * Hyper-threaded CPUs may need a special instruction inside spin loops in * order to yield to another virtual CPU. */ #undef CPU_SPINWAIT /* Defined if the equivalent of FreeBSD's atomic(9) functions are available. */ #undef JEMALLOC_ATOMIC9 /* * Defined if OSAtomic*() functions are available, as provided by Darwin, and * documented in the atomic(3) manual page. */ #undef JEMALLOC_OSATOMIC /* * Defined if __sync_add_and_fetch(uint32_t *, uint32_t) and * __sync_sub_and_fetch(uint32_t *, uint32_t) are available, despite * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 not being defined (which means the * functions are defined in libgcc instead of being inlines) */ #undef JE_FORCE_SYNC_COMPARE_AND_SWAP_4 /* * Defined if __sync_add_and_fetch(uint64_t *, uint64_t) and * __sync_sub_and_fetch(uint64_t *, uint64_t) are available, despite * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 not being defined (which means the * functions are defined in libgcc instead of being inlines) */ #undef JE_FORCE_SYNC_COMPARE_AND_SWAP_8 /* * Defined if OSSpin*() functions are available, as provided by Darwin, and * documented in the spinlock(3) manual page. */ #undef JEMALLOC_OSSPIN /* * Defined if _malloc_thread_cleanup() exists. At least in the case of * FreeBSD, pthread_key_create() allocates, which if used during malloc * bootstrapping will cause recursion into the pthreads library. Therefore, if * _malloc_thread_cleanup() exists, use it as the basis for thread cleanup in * malloc_tsd. */ #undef JEMALLOC_MALLOC_THREAD_CLEANUP /* * Defined if threaded initialization is known to be safe on this platform. * Among other things, it must be possible to initialize a mutex without * triggering allocation in order for threaded allocation to be safe. */ #undef JEMALLOC_THREADED_INIT /* * Defined if the pthreads implementation defines * _pthread_mutex_init_calloc_cb(), in which case the function is used in order * to avoid recursive allocation during mutex initialization. */ #undef JEMALLOC_MUTEX_INIT_CB /* Defined if __attribute__((...)) syntax is supported. */ #undef JEMALLOC_HAVE_ATTR #ifdef JEMALLOC_HAVE_ATTR # define JEMALLOC_ATTR(s) __attribute__((s)) # define JEMALLOC_EXPORT JEMALLOC_ATTR(visibility("default")) # define JEMALLOC_ALIGNED(s) JEMALLOC_ATTR(aligned(s)) # define JEMALLOC_SECTION(s) JEMALLOC_ATTR(section(s)) # define JEMALLOC_NOINLINE JEMALLOC_ATTR(noinline) #elif _MSC_VER # define JEMALLOC_ATTR(s) # ifdef DLLEXPORT # define JEMALLOC_EXPORT __declspec(dllexport) # else # define JEMALLOC_EXPORT __declspec(dllimport) # endif # define JEMALLOC_ALIGNED(s) __declspec(align(s)) # define JEMALLOC_SECTION(s) __declspec(allocate(s)) # define JEMALLOC_NOINLINE __declspec(noinline) #else # define JEMALLOC_ATTR(s) # define JEMALLOC_EXPORT # define JEMALLOC_ALIGNED(s) # define JEMALLOC_SECTION(s) # define JEMALLOC_NOINLINE #endif /* Defined if sbrk() is supported. */ #undef JEMALLOC_HAVE_SBRK /* Non-empty if the tls_model attribute is supported. */ #undef JEMALLOC_TLS_MODEL /* JEMALLOC_CC_SILENCE enables code that silences unuseful compiler warnings. */ #undef JEMALLOC_CC_SILENCE /* * JEMALLOC_DEBUG enables assertions and other sanity checks, and disables * inline functions. */ #undef JEMALLOC_DEBUG /* JEMALLOC_STATS enables statistics calculation. */ #undef JEMALLOC_STATS /* JEMALLOC_PROF enables allocation profiling. */ #undef JEMALLOC_PROF /* Use libunwind for profile backtracing if defined. */ #undef JEMALLOC_PROF_LIBUNWIND /* Use libgcc for profile backtracing if defined. */ #undef JEMALLOC_PROF_LIBGCC /* Use gcc intrinsics for profile backtracing if defined. */ #undef JEMALLOC_PROF_GCC /* * JEMALLOC_TCACHE enables a thread-specific caching layer for small objects. * This makes it possible to allocate/deallocate objects without any locking * when the cache is in the steady state. */ #undef JEMALLOC_TCACHE /* * JEMALLOC_DSS enables use of sbrk(2) to allocate chunks from the data storage * segment (DSS). */ #undef JEMALLOC_DSS /* Support memory filling (junk/zero/quarantine/redzone). */ #undef JEMALLOC_FILL /* Support the experimental API. */ #undef JEMALLOC_EXPERIMENTAL /* Support utrace(2)-based tracing. */ #undef JEMALLOC_UTRACE /* Support Valgrind. */ #undef JEMALLOC_VALGRIND /* Support optional abort() on OOM. */ #undef JEMALLOC_XMALLOC /* Support lazy locking (avoid locking unless a second thread is launched). */ #undef JEMALLOC_LAZY_LOCK /* One page is 2^STATIC_PAGE_SHIFT bytes. */ #undef STATIC_PAGE_SHIFT /* * If defined, use munmap() to unmap freed chunks, rather than storing them for * later reuse. This is disabled by default on Linux because common sequences * of mmap()/munmap() calls will cause virtual memory map holes. */ #undef JEMALLOC_MUNMAP /* * If defined, use mremap(...MREMAP_FIXED...) for huge realloc(). This is * disabled by default because it is Linux-specific and it will cause virtual * memory map holes, much like munmap(2) does. */ #undef JEMALLOC_MREMAP /* TLS is used to map arenas and magazine caches to threads. */ #undef JEMALLOC_TLS /* * JEMALLOC_IVSALLOC enables ivsalloc(), which verifies that pointers reside * within jemalloc-owned chunks before dereferencing them. */ #undef JEMALLOC_IVSALLOC /* * Define overrides for non-standard allocator-related functions if they * are present on the system. */ #undef JEMALLOC_OVERRIDE_MEMALIGN #undef JEMALLOC_OVERRIDE_VALLOC /* * At least Linux omits the "const" in: * * size_t malloc_usable_size(const void *ptr); * * Match the operating system's prototype. */ #undef JEMALLOC_USABLE_SIZE_CONST /* * Darwin (OS X) uses zones to work around Mach-O symbol override shortcomings. */ #undef JEMALLOC_ZONE #undef JEMALLOC_ZONE_VERSION /* * Methods for purging unused pages differ between operating systems. * * madvise(..., MADV_DONTNEED) : On Linux, this immediately discards pages, * such that new pages will be demand-zeroed if * the address region is later touched. * madvise(..., MADV_FREE) : On FreeBSD and Darwin, this marks pages as being * unused, such that they will be discarded rather * than swapped out. */ #undef JEMALLOC_PURGE_MADVISE_DONTNEED #undef JEMALLOC_PURGE_MADVISE_FREE /* sizeof(void *) == 2^LG_SIZEOF_PTR. */ #undef LG_SIZEOF_PTR /* sizeof(int) == 2^LG_SIZEOF_INT. */ #undef LG_SIZEOF_INT /* sizeof(long) == 2^LG_SIZEOF_LONG. */ #undef LG_SIZEOF_LONG /* sizeof(intmax_t) == 2^LG_SIZEOF_INTMAX_T. */ #undef LG_SIZEOF_INTMAX_T redis-2.6.16/deps/jemalloc/include/msvc_compat/000077500000000000000000000000001220734223100213675ustar00rootroot00000000000000redis-2.6.16/deps/jemalloc/include/msvc_compat/inttypes.h000066400000000000000000000204531220734223100234230ustar00rootroot00000000000000// ISO C9x compliant inttypes.h for Microsoft Visual Studio // Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 // // Copyright (c) 2006 Alexander Chemeris // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // 1. Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // // 2. Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in the // documentation and/or other materials provided with the distribution. // // 3. The name of the author may be used to endorse or promote products // derived from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // /////////////////////////////////////////////////////////////////////////////// #ifndef _MSC_VER // [ #error "Use this header only with Microsoft Visual C++ compilers!" #endif // _MSC_VER ] #ifndef _MSC_INTTYPES_H_ // [ #define _MSC_INTTYPES_H_ #if _MSC_VER > 1000 #pragma once #endif #include "stdint.h" // 7.8 Format conversion of integer types typedef struct { intmax_t quot; intmax_t rem; } imaxdiv_t; // 7.8.1 Macros for format specifiers #if !defined(__cplusplus) || defined(__STDC_FORMAT_MACROS) // [ See footnote 185 at page 198 #ifdef _WIN64 # define __PRI64_PREFIX "l" # define __PRIPTR_PREFIX "l" #else # define __PRI64_PREFIX "ll" # define __PRIPTR_PREFIX #endif // The fprintf macros for signed integers are: #define PRId8 "d" #define PRIi8 "i" #define PRIdLEAST8 "d" #define PRIiLEAST8 "i" #define PRIdFAST8 "d" #define PRIiFAST8 "i" #define PRId16 "hd" #define PRIi16 "hi" #define PRIdLEAST16 "hd" #define PRIiLEAST16 "hi" #define PRIdFAST16 "hd" #define PRIiFAST16 "hi" #define PRId32 "d" #define PRIi32 "i" #define PRIdLEAST32 "d" #define PRIiLEAST32 "i" #define PRIdFAST32 "d" #define PRIiFAST32 "i" #define PRId64 __PRI64_PREFIX "d" #define PRIi64 __PRI64_PREFIX "i" #define PRIdLEAST64 __PRI64_PREFIX "d" #define PRIiLEAST64 __PRI64_PREFIX "i" #define PRIdFAST64 __PRI64_PREFIX "d" #define PRIiFAST64 __PRI64_PREFIX "i" #define PRIdMAX __PRI64_PREFIX "d" #define PRIiMAX __PRI64_PREFIX "i" #define PRIdPTR __PRIPTR_PREFIX "d" #define PRIiPTR __PRIPTR_PREFIX "i" // The fprintf macros for unsigned integers are: #define PRIo8 "o" #define PRIu8 "u" #define PRIx8 "x" #define PRIX8 "X" #define PRIoLEAST8 "o" #define PRIuLEAST8 "u" #define PRIxLEAST8 "x" #define PRIXLEAST8 "X" #define PRIoFAST8 "o" #define PRIuFAST8 "u" #define PRIxFAST8 "x" #define PRIXFAST8 "X" #define PRIo16 "ho" #define PRIu16 "hu" #define PRIx16 "hx" #define PRIX16 "hX" #define PRIoLEAST16 "ho" #define PRIuLEAST16 "hu" #define PRIxLEAST16 "hx" #define PRIXLEAST16 "hX" #define PRIoFAST16 "ho" #define PRIuFAST16 "hu" #define PRIxFAST16 "hx" #define PRIXFAST16 "hX" #define PRIo32 "o" #define PRIu32 "u" #define PRIx32 "x" #define PRIX32 "X" #define PRIoLEAST32 "o" #define PRIuLEAST32 "u" #define PRIxLEAST32 "x" #define PRIXLEAST32 "X" #define PRIoFAST32 "o" #define PRIuFAST32 "u" #define PRIxFAST32 "x" #define PRIXFAST32 "X" #define PRIo64 __PRI64_PREFIX "o" #define PRIu64 __PRI64_PREFIX "u" #define PRIx64 __PRI64_PREFIX "x" #define PRIX64 __PRI64_PREFIX "X" #define PRIoLEAST64 __PRI64_PREFIX "o" #define PRIuLEAST64 __PRI64_PREFIX "u" #define PRIxLEAST64 __PRI64_PREFIX "x" #define PRIXLEAST64 __PRI64_PREFIX "X" #define PRIoFAST64 __PRI64_PREFIX "o" #define PRIuFAST64 __PRI64_PREFIX "u" #define PRIxFAST64 __PRI64_PREFIX "x" #define PRIXFAST64 __PRI64_PREFIX "X" #define PRIoMAX __PRI64_PREFIX "o" #define PRIuMAX __PRI64_PREFIX "u" #define PRIxMAX __PRI64_PREFIX "x" #define PRIXMAX __PRI64_PREFIX "X" #define PRIoPTR __PRIPTR_PREFIX "o" #define PRIuPTR __PRIPTR_PREFIX "u" #define PRIxPTR __PRIPTR_PREFIX "x" #define PRIXPTR __PRIPTR_PREFIX "X" // The fscanf macros for signed integers are: #define SCNd8 "d" #define SCNi8 "i" #define SCNdLEAST8 "d" #define SCNiLEAST8 "i" #define SCNdFAST8 "d" #define SCNiFAST8 "i" #define SCNd16 "hd" #define SCNi16 "hi" #define SCNdLEAST16 "hd" #define SCNiLEAST16 "hi" #define SCNdFAST16 "hd" #define SCNiFAST16 "hi" #define SCNd32 "ld" #define SCNi32 "li" #define SCNdLEAST32 "ld" #define SCNiLEAST32 "li" #define SCNdFAST32 "ld" #define SCNiFAST32 "li" #define SCNd64 "I64d" #define SCNi64 "I64i" #define SCNdLEAST64 "I64d" #define SCNiLEAST64 "I64i" #define SCNdFAST64 "I64d" #define SCNiFAST64 "I64i" #define SCNdMAX "I64d" #define SCNiMAX "I64i" #ifdef _WIN64 // [ # define SCNdPTR "I64d" # define SCNiPTR "I64i" #else // _WIN64 ][ # define SCNdPTR "ld" # define SCNiPTR "li" #endif // _WIN64 ] // The fscanf macros for unsigned integers are: #define SCNo8 "o" #define SCNu8 "u" #define SCNx8 "x" #define SCNX8 "X" #define SCNoLEAST8 "o" #define SCNuLEAST8 "u" #define SCNxLEAST8 "x" #define SCNXLEAST8 "X" #define SCNoFAST8 "o" #define SCNuFAST8 "u" #define SCNxFAST8 "x" #define SCNXFAST8 "X" #define SCNo16 "ho" #define SCNu16 "hu" #define SCNx16 "hx" #define SCNX16 "hX" #define SCNoLEAST16 "ho" #define SCNuLEAST16 "hu" #define SCNxLEAST16 "hx" #define SCNXLEAST16 "hX" #define SCNoFAST16 "ho" #define SCNuFAST16 "hu" #define SCNxFAST16 "hx" #define SCNXFAST16 "hX" #define SCNo32 "lo" #define SCNu32 "lu" #define SCNx32 "lx" #define SCNX32 "lX" #define SCNoLEAST32 "lo" #define SCNuLEAST32 "lu" #define SCNxLEAST32 "lx" #define SCNXLEAST32 "lX" #define SCNoFAST32 "lo" #define SCNuFAST32 "lu" #define SCNxFAST32 "lx" #define SCNXFAST32 "lX" #define SCNo64 "I64o" #define SCNu64 "I64u" #define SCNx64 "I64x" #define SCNX64 "I64X" #define SCNoLEAST64 "I64o" #define SCNuLEAST64 "I64u" #define SCNxLEAST64 "I64x" #define SCNXLEAST64 "I64X" #define SCNoFAST64 "I64o" #define SCNuFAST64 "I64u" #define SCNxFAST64 "I64x" #define SCNXFAST64 "I64X" #define SCNoMAX "I64o" #define SCNuMAX "I64u" #define SCNxMAX "I64x" #define SCNXMAX "I64X" #ifdef _WIN64 // [ # define SCNoPTR "I64o" # define SCNuPTR "I64u" # define SCNxPTR "I64x" # define SCNXPTR "I64X" #else // _WIN64 ][ # define SCNoPTR "lo" # define SCNuPTR "lu" # define SCNxPTR "lx" # define SCNXPTR "lX" #endif // _WIN64 ] #endif // __STDC_FORMAT_MACROS ] // 7.8.2 Functions for greatest-width integer types // 7.8.2.1 The imaxabs function #define imaxabs _abs64 // 7.8.2.2 The imaxdiv function // This is modified version of div() function from Microsoft's div.c found // in %MSVC.NET%\crt\src\div.c #ifdef STATIC_IMAXDIV // [ static #else // STATIC_IMAXDIV ][ _inline #endif // STATIC_IMAXDIV ] imaxdiv_t __cdecl imaxdiv(intmax_t numer, intmax_t denom) { imaxdiv_t result; result.quot = numer / denom; result.rem = numer % denom; if (numer < 0 && result.rem > 0) { // did division wrong; must fix up ++result.quot; result.rem -= denom; } return result; } // 7.8.2.3 The strtoimax and strtoumax functions #define strtoimax _strtoi64 #define strtoumax _strtoui64 // 7.8.2.4 The wcstoimax and wcstoumax functions #define wcstoimax _wcstoi64 #define wcstoumax _wcstoui64 #endif // _MSC_INTTYPES_H_ ] redis-2.6.16/deps/jemalloc/include/msvc_compat/stdbool.h000066400000000000000000000005131220734223100232050ustar00rootroot00000000000000#ifndef stdbool_h #define stdbool_h #include /* MSVC doesn't define _Bool or bool in C, but does have BOOL */ /* Note this doesn't pass autoconf's test because (bool) 0.5 != true */ typedef BOOL _Bool; #define bool _Bool #define true 1 #define false 0 #define __bool_true_false_are_defined 1 #endif /* stdbool_h */ redis-2.6.16/deps/jemalloc/include/msvc_compat/stdint.h000066400000000000000000000170601220734223100230510ustar00rootroot00000000000000// ISO C9x compliant stdint.h for Microsoft Visual Studio // Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 // // Copyright (c) 2006-2008 Alexander Chemeris // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // 1. Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // // 2. Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in the // documentation and/or other materials provided with the distribution. // // 3. The name of the author may be used to endorse or promote products // derived from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // /////////////////////////////////////////////////////////////////////////////// #ifndef _MSC_VER // [ #error "Use this header only with Microsoft Visual C++ compilers!" #endif // _MSC_VER ] #ifndef _MSC_STDINT_H_ // [ #define _MSC_STDINT_H_ #if _MSC_VER > 1000 #pragma once #endif #include // For Visual Studio 6 in C++ mode and for many Visual Studio versions when // compiling for ARM we should wrap include with 'extern "C++" {}' // or compiler give many errors like this: // error C2733: second C linkage of overloaded function 'wmemchr' not allowed #ifdef __cplusplus extern "C" { #endif # include #ifdef __cplusplus } #endif // Define _W64 macros to mark types changing their size, like intptr_t. #ifndef _W64 # if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300 # define _W64 __w64 # else # define _W64 # endif #endif // 7.18.1 Integer types // 7.18.1.1 Exact-width integer types // Visual Studio 6 and Embedded Visual C++ 4 doesn't // realize that, e.g. char has the same size as __int8 // so we give up on __intX for them. #if (_MSC_VER < 1300) typedef signed char int8_t; typedef signed short int16_t; typedef signed int int32_t; typedef unsigned char uint8_t; typedef unsigned short uint16_t; typedef unsigned int uint32_t; #else typedef signed __int8 int8_t; typedef signed __int16 int16_t; typedef signed __int32 int32_t; typedef unsigned __int8 uint8_t; typedef unsigned __int16 uint16_t; typedef unsigned __int32 uint32_t; #endif typedef signed __int64 int64_t; typedef unsigned __int64 uint64_t; // 7.18.1.2 Minimum-width integer types typedef int8_t int_least8_t; typedef int16_t int_least16_t; typedef int32_t int_least32_t; typedef int64_t int_least64_t; typedef uint8_t uint_least8_t; typedef uint16_t uint_least16_t; typedef uint32_t uint_least32_t; typedef uint64_t uint_least64_t; // 7.18.1.3 Fastest minimum-width integer types typedef int8_t int_fast8_t; typedef int16_t int_fast16_t; typedef int32_t int_fast32_t; typedef int64_t int_fast64_t; typedef uint8_t uint_fast8_t; typedef uint16_t uint_fast16_t; typedef uint32_t uint_fast32_t; typedef uint64_t uint_fast64_t; // 7.18.1.4 Integer types capable of holding object pointers #ifdef _WIN64 // [ typedef signed __int64 intptr_t; typedef unsigned __int64 uintptr_t; #else // _WIN64 ][ typedef _W64 signed int intptr_t; typedef _W64 unsigned int uintptr_t; #endif // _WIN64 ] // 7.18.1.5 Greatest-width integer types typedef int64_t intmax_t; typedef uint64_t uintmax_t; // 7.18.2 Limits of specified-width integer types #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [ See footnote 220 at page 257 and footnote 221 at page 259 // 7.18.2.1 Limits of exact-width integer types #define INT8_MIN ((int8_t)_I8_MIN) #define INT8_MAX _I8_MAX #define INT16_MIN ((int16_t)_I16_MIN) #define INT16_MAX _I16_MAX #define INT32_MIN ((int32_t)_I32_MIN) #define INT32_MAX _I32_MAX #define INT64_MIN ((int64_t)_I64_MIN) #define INT64_MAX _I64_MAX #define UINT8_MAX _UI8_MAX #define UINT16_MAX _UI16_MAX #define UINT32_MAX _UI32_MAX #define UINT64_MAX _UI64_MAX // 7.18.2.2 Limits of minimum-width integer types #define INT_LEAST8_MIN INT8_MIN #define INT_LEAST8_MAX INT8_MAX #define INT_LEAST16_MIN INT16_MIN #define INT_LEAST16_MAX INT16_MAX #define INT_LEAST32_MIN INT32_MIN #define INT_LEAST32_MAX INT32_MAX #define INT_LEAST64_MIN INT64_MIN #define INT_LEAST64_MAX INT64_MAX #define UINT_LEAST8_MAX UINT8_MAX #define UINT_LEAST16_MAX UINT16_MAX #define UINT_LEAST32_MAX UINT32_MAX #define UINT_LEAST64_MAX UINT64_MAX // 7.18.2.3 Limits of fastest minimum-width integer types #define INT_FAST8_MIN INT8_MIN #define INT_FAST8_MAX INT8_MAX #define INT_FAST16_MIN INT16_MIN #define INT_FAST16_MAX INT16_MAX #define INT_FAST32_MIN INT32_MIN #define INT_FAST32_MAX INT32_MAX #define INT_FAST64_MIN INT64_MIN #define INT_FAST64_MAX INT64_MAX #define UINT_FAST8_MAX UINT8_MAX #define UINT_FAST16_MAX UINT16_MAX #define UINT_FAST32_MAX UINT32_MAX #define UINT_FAST64_MAX UINT64_MAX // 7.18.2.4 Limits of integer types capable of holding object pointers #ifdef _WIN64 // [ # define INTPTR_MIN INT64_MIN # define INTPTR_MAX INT64_MAX # define UINTPTR_MAX UINT64_MAX #else // _WIN64 ][ # define INTPTR_MIN INT32_MIN # define INTPTR_MAX INT32_MAX # define UINTPTR_MAX UINT32_MAX #endif // _WIN64 ] // 7.18.2.5 Limits of greatest-width integer types #define INTMAX_MIN INT64_MIN #define INTMAX_MAX INT64_MAX #define UINTMAX_MAX UINT64_MAX // 7.18.3 Limits of other integer types #ifdef _WIN64 // [ # define PTRDIFF_MIN _I64_MIN # define PTRDIFF_MAX _I64_MAX #else // _WIN64 ][ # define PTRDIFF_MIN _I32_MIN # define PTRDIFF_MAX _I32_MAX #endif // _WIN64 ] #define SIG_ATOMIC_MIN INT_MIN #define SIG_ATOMIC_MAX INT_MAX #ifndef SIZE_MAX // [ # ifdef _WIN64 // [ # define SIZE_MAX _UI64_MAX # else // _WIN64 ][ # define SIZE_MAX _UI32_MAX # endif // _WIN64 ] #endif // SIZE_MAX ] // WCHAR_MIN and WCHAR_MAX are also defined in #ifndef WCHAR_MIN // [ # define WCHAR_MIN 0 #endif // WCHAR_MIN ] #ifndef WCHAR_MAX // [ # define WCHAR_MAX _UI16_MAX #endif // WCHAR_MAX ] #define WINT_MIN 0 #define WINT_MAX _UI16_MAX #endif // __STDC_LIMIT_MACROS ] // 7.18.4 Limits of other integer types #if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [ See footnote 224 at page 260 // 7.18.4.1 Macros for minimum-width integer constants #define INT8_C(val) val##i8 #define INT16_C(val) val##i16 #define INT32_C(val) val##i32 #define INT64_C(val) val##i64 #define UINT8_C(val) val##ui8 #define UINT16_C(val) val##ui16 #define UINT32_C(val) val##ui32 #define UINT64_C(val) val##ui64 // 7.18.4.2 Macros for greatest-width integer constants #define INTMAX_C INT64_C #define UINTMAX_C UINT64_C #endif // __STDC_CONSTANT_MACROS ] #endif // _MSC_STDINT_H_ ] redis-2.6.16/deps/jemalloc/include/msvc_compat/strings.h000066400000000000000000000005621220734223100232340ustar00rootroot00000000000000#ifndef strings_h #define strings_h /* MSVC doesn't define ffs/ffsl. This dummy strings.h header is provided * for both */ #include #pragma intrinsic(_BitScanForward) static __forceinline int ffsl(long x) { unsigned long i; if (_BitScanForward(&i, x)) return (i + 1); return (0); } static __forceinline int ffs(int x) { return (ffsl(x)); } #endif redis-2.6.16/deps/jemalloc/install-sh000077500000000000000000000127211220734223100174400ustar00rootroot00000000000000#! /bin/sh # # install - install a program, script, or datafile # This comes from X11R5 (mit/util/scripts/install.sh). # # Copyright 1991 by the Massachusetts Institute of Technology # # Permission to use, copy, modify, distribute, and sell this software and its # documentation for any purpose is hereby granted without fee, provided that # the above copyright notice appear in all copies and that both that # copyright notice and this permission notice appear in supporting # documentation, and that the name of M.I.T. not be used in advertising or # publicity pertaining to distribution of the software without specific, # written prior permission. M.I.T. makes no representations about the # suitability of this software for any purpose. It is provided "as is" # without express or implied warranty. # # Calling this script install-sh is preferred over install.sh, to prevent # `make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. It can only install one file at a time, a restriction # shared with many OS's install programs. # set DOITPROG to echo to test this script # Don't use :- since 4.3BSD and earlier shells don't like it. doit="${DOITPROG-}" # put in absolute paths if you don't have them in your path; or use env. vars. mvprog="${MVPROG-mv}" cpprog="${CPPROG-cp}" chmodprog="${CHMODPROG-chmod}" chownprog="${CHOWNPROG-chown}" chgrpprog="${CHGRPPROG-chgrp}" stripprog="${STRIPPROG-strip}" rmprog="${RMPROG-rm}" mkdirprog="${MKDIRPROG-mkdir}" transformbasename="" transform_arg="" instcmd="$mvprog" chmodcmd="$chmodprog 0755" chowncmd="" chgrpcmd="" stripcmd="" rmcmd="$rmprog -f" mvcmd="$mvprog" src="" dst="" dir_arg="" while [ x"$1" != x ]; do case $1 in -c) instcmd="$cpprog" shift continue;; -d) dir_arg=true shift continue;; -m) chmodcmd="$chmodprog $2" shift shift continue;; -o) chowncmd="$chownprog $2" shift shift continue;; -g) chgrpcmd="$chgrpprog $2" shift shift continue;; -s) stripcmd="$stripprog" shift continue;; -t=*) transformarg=`echo $1 | sed 's/-t=//'` shift continue;; -b=*) transformbasename=`echo $1 | sed 's/-b=//'` shift continue;; *) if [ x"$src" = x ] then src=$1 else # this colon is to work around a 386BSD /bin/sh bug : dst=$1 fi shift continue;; esac done if [ x"$src" = x ] then echo "install: no input file specified" exit 1 else true fi if [ x"$dir_arg" != x ]; then dst=$src src="" if [ -d $dst ]; then instcmd=: else instcmd=mkdir fi else # Waiting for this to be detected by the "$instcmd $src $dsttmp" command # might cause directories to be created, which would be especially bad # if $src (and thus $dsttmp) contains '*'. if [ -f $src -o -d $src ] then true else echo "install: $src does not exist" exit 1 fi if [ x"$dst" = x ] then echo "install: no destination specified" exit 1 else true fi # If destination is a directory, append the input filename; if your system # does not like double slashes in filenames, you may need to add some logic if [ -d $dst ] then dst="$dst"/`basename $src` else true fi fi ## this sed command emulates the dirname command dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` # Make sure that the destination directory exists. # this part is taken from Noah Friedman's mkinstalldirs script # Skip lots of stat calls in the usual case. if [ ! -d "$dstdir" ]; then defaultIFS=' ' IFS="${IFS-${defaultIFS}}" oIFS="${IFS}" # Some sh's can't handle IFS=/ for some reason. IFS='%' set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` IFS="${oIFS}" pathcomp='' while [ $# -ne 0 ] ; do pathcomp="${pathcomp}${1}" shift if [ ! -d "${pathcomp}" ] ; then $mkdirprog "${pathcomp}" else true fi pathcomp="${pathcomp}/" done fi if [ x"$dir_arg" != x ] then $doit $instcmd $dst && if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi else # If we're going to rename the final executable, determine the name now. if [ x"$transformarg" = x ] then dstfile=`basename $dst` else dstfile=`basename $dst $transformbasename | sed $transformarg`$transformbasename fi # don't allow the sed command to completely eliminate the filename if [ x"$dstfile" = x ] then dstfile=`basename $dst` else true fi # Make a temp file name in the proper directory. dsttmp=$dstdir/#inst.$$# # Move or copy the file name to the temp name $doit $instcmd $src $dsttmp && trap "rm -f ${dsttmp}" 0 && # and set any options; do chmod last to preserve setuid bits # If any of these fail, we abort the whole thing. If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $instcmd $src $dsttmp" command. if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && # Now rename the file to the real destination. $doit $rmcmd -f $dstdir/$dstfile && $doit $mvcmd $dsttmp $dstdir/$dstfile fi && exit 0 redis-2.6.16/deps/jemalloc/src/000077500000000000000000000000001220734223100162205ustar00rootroot00000000000000redis-2.6.16/deps/jemalloc/src/arena.c000066400000000000000000002111461220734223100174570ustar00rootroot00000000000000#define JEMALLOC_ARENA_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Data. */ ssize_t opt_lg_dirty_mult = LG_DIRTY_MULT_DEFAULT; arena_bin_info_t arena_bin_info[NBINS]; JEMALLOC_ALIGNED(CACHELINE) const uint8_t small_size2bin[] = { #define S2B_8(i) i, #define S2B_16(i) S2B_8(i) S2B_8(i) #define S2B_32(i) S2B_16(i) S2B_16(i) #define S2B_64(i) S2B_32(i) S2B_32(i) #define S2B_128(i) S2B_64(i) S2B_64(i) #define S2B_256(i) S2B_128(i) S2B_128(i) #define S2B_512(i) S2B_256(i) S2B_256(i) #define S2B_1024(i) S2B_512(i) S2B_512(i) #define S2B_2048(i) S2B_1024(i) S2B_1024(i) #define S2B_4096(i) S2B_2048(i) S2B_2048(i) #define S2B_8192(i) S2B_4096(i) S2B_4096(i) #define SIZE_CLASS(bin, delta, size) \ S2B_##delta(bin) SIZE_CLASSES #undef S2B_8 #undef S2B_16 #undef S2B_32 #undef S2B_64 #undef S2B_128 #undef S2B_256 #undef S2B_512 #undef S2B_1024 #undef S2B_2048 #undef S2B_4096 #undef S2B_8192 #undef SIZE_CLASS }; /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static void arena_avail_insert(arena_t *arena, arena_chunk_t *chunk, size_t pageind, size_t npages, bool maybe_adjac_pred, bool maybe_adjac_succ); static void arena_avail_remove(arena_t *arena, arena_chunk_t *chunk, size_t pageind, size_t npages, bool maybe_adjac_pred, bool maybe_adjac_succ); static void arena_run_split(arena_t *arena, arena_run_t *run, size_t size, bool large, size_t binind, bool zero); static arena_chunk_t *arena_chunk_alloc(arena_t *arena); static void arena_chunk_dealloc(arena_t *arena, arena_chunk_t *chunk); static arena_run_t *arena_run_alloc_helper(arena_t *arena, size_t size, bool large, size_t binind, bool zero); static arena_run_t *arena_run_alloc(arena_t *arena, size_t size, bool large, size_t binind, bool zero); static arena_chunk_t *chunks_dirty_iter_cb(arena_chunk_tree_t *tree, arena_chunk_t *chunk, void *arg); static void arena_purge(arena_t *arena, bool all); static void arena_run_dalloc(arena_t *arena, arena_run_t *run, bool dirty, bool cleaned); static void arena_run_trim_head(arena_t *arena, arena_chunk_t *chunk, arena_run_t *run, size_t oldsize, size_t newsize); static void arena_run_trim_tail(arena_t *arena, arena_chunk_t *chunk, arena_run_t *run, size_t oldsize, size_t newsize, bool dirty); static arena_run_t *arena_bin_runs_first(arena_bin_t *bin); static void arena_bin_runs_insert(arena_bin_t *bin, arena_run_t *run); static void arena_bin_runs_remove(arena_bin_t *bin, arena_run_t *run); static arena_run_t *arena_bin_nonfull_run_tryget(arena_bin_t *bin); static arena_run_t *arena_bin_nonfull_run_get(arena_t *arena, arena_bin_t *bin); static void *arena_bin_malloc_hard(arena_t *arena, arena_bin_t *bin); static void arena_dissociate_bin_run(arena_chunk_t *chunk, arena_run_t *run, arena_bin_t *bin); static void arena_dalloc_bin_run(arena_t *arena, arena_chunk_t *chunk, arena_run_t *run, arena_bin_t *bin); static void arena_bin_lower_run(arena_t *arena, arena_chunk_t *chunk, arena_run_t *run, arena_bin_t *bin); static void arena_ralloc_large_shrink(arena_t *arena, arena_chunk_t *chunk, void *ptr, size_t oldsize, size_t size); static bool arena_ralloc_large_grow(arena_t *arena, arena_chunk_t *chunk, void *ptr, size_t oldsize, size_t size, size_t extra, bool zero); static bool arena_ralloc_large(void *ptr, size_t oldsize, size_t size, size_t extra, bool zero); static size_t bin_info_run_size_calc(arena_bin_info_t *bin_info, size_t min_run_size); static void bin_info_init(void); /******************************************************************************/ static inline int arena_run_comp(arena_chunk_map_t *a, arena_chunk_map_t *b) { uintptr_t a_mapelm = (uintptr_t)a; uintptr_t b_mapelm = (uintptr_t)b; assert(a != NULL); assert(b != NULL); return ((a_mapelm > b_mapelm) - (a_mapelm < b_mapelm)); } /* Generate red-black tree functions. */ rb_gen(static UNUSED, arena_run_tree_, arena_run_tree_t, arena_chunk_map_t, u.rb_link, arena_run_comp) static inline int arena_avail_comp(arena_chunk_map_t *a, arena_chunk_map_t *b) { int ret; size_t a_size = a->bits & ~PAGE_MASK; size_t b_size = b->bits & ~PAGE_MASK; ret = (a_size > b_size) - (a_size < b_size); if (ret == 0) { uintptr_t a_mapelm, b_mapelm; if ((a->bits & CHUNK_MAP_KEY) != CHUNK_MAP_KEY) a_mapelm = (uintptr_t)a; else { /* * Treat keys as though they are lower than anything * else. */ a_mapelm = 0; } b_mapelm = (uintptr_t)b; ret = (a_mapelm > b_mapelm) - (a_mapelm < b_mapelm); } return (ret); } /* Generate red-black tree functions. */ rb_gen(static UNUSED, arena_avail_tree_, arena_avail_tree_t, arena_chunk_map_t, u.rb_link, arena_avail_comp) static inline int arena_chunk_dirty_comp(arena_chunk_t *a, arena_chunk_t *b) { assert(a != NULL); assert(b != NULL); /* * Short-circuit for self comparison. The following comparison code * would come to the same result, but at the cost of executing the slow * path. */ if (a == b) return (0); /* * Order such that chunks with higher fragmentation are "less than" * those with lower fragmentation -- purging order is from "least" to * "greatest". Fragmentation is measured as: * * mean current avail run size * -------------------------------- * mean defragmented avail run size * * navail * ----------- * nruns_avail nruns_avail-nruns_adjac * = ========================= = ----------------------- * navail nruns_avail * ----------------------- * nruns_avail-nruns_adjac * * The following code multiplies away the denominator prior to * comparison, in order to avoid division. * */ { size_t a_val = (a->nruns_avail - a->nruns_adjac) * b->nruns_avail; size_t b_val = (b->nruns_avail - b->nruns_adjac) * a->nruns_avail; if (a_val < b_val) return (1); if (a_val > b_val) return (-1); } /* * Break ties by chunk address. For fragmented chunks, report lower * addresses as "lower", so that fragmentation reduction happens first * at lower addresses. However, use the opposite ordering for * unfragmented chunks, in order to increase the chances of * re-allocating dirty runs. */ { uintptr_t a_chunk = (uintptr_t)a; uintptr_t b_chunk = (uintptr_t)b; int ret = ((a_chunk > b_chunk) - (a_chunk < b_chunk)); if (a->nruns_adjac == 0) { assert(b->nruns_adjac == 0); ret = -ret; } return (ret); } } /* Generate red-black tree functions. */ rb_gen(static UNUSED, arena_chunk_dirty_, arena_chunk_tree_t, arena_chunk_t, dirty_link, arena_chunk_dirty_comp) static inline bool arena_avail_adjac_pred(arena_chunk_t *chunk, size_t pageind) { bool ret; if (pageind-1 < map_bias) ret = false; else { ret = (arena_mapbits_allocated_get(chunk, pageind-1) == 0); assert(ret == false || arena_mapbits_dirty_get(chunk, pageind-1) != arena_mapbits_dirty_get(chunk, pageind)); } return (ret); } static inline bool arena_avail_adjac_succ(arena_chunk_t *chunk, size_t pageind, size_t npages) { bool ret; if (pageind+npages == chunk_npages) ret = false; else { assert(pageind+npages < chunk_npages); ret = (arena_mapbits_allocated_get(chunk, pageind+npages) == 0); assert(ret == false || arena_mapbits_dirty_get(chunk, pageind) != arena_mapbits_dirty_get(chunk, pageind+npages)); } return (ret); } static inline bool arena_avail_adjac(arena_chunk_t *chunk, size_t pageind, size_t npages) { return (arena_avail_adjac_pred(chunk, pageind) || arena_avail_adjac_succ(chunk, pageind, npages)); } static void arena_avail_insert(arena_t *arena, arena_chunk_t *chunk, size_t pageind, size_t npages, bool maybe_adjac_pred, bool maybe_adjac_succ) { assert(npages == (arena_mapbits_unallocated_size_get(chunk, pageind) >> LG_PAGE)); /* * chunks_dirty is keyed by nruns_{avail,adjac}, so the chunk must be * removed and reinserted even if the run to be inserted is clean. */ if (chunk->ndirty != 0) arena_chunk_dirty_remove(&arena->chunks_dirty, chunk); if (maybe_adjac_pred && arena_avail_adjac_pred(chunk, pageind)) chunk->nruns_adjac++; if (maybe_adjac_succ && arena_avail_adjac_succ(chunk, pageind, npages)) chunk->nruns_adjac++; chunk->nruns_avail++; assert(chunk->nruns_avail > chunk->nruns_adjac); if (arena_mapbits_dirty_get(chunk, pageind) != 0) { arena->ndirty += npages; chunk->ndirty += npages; } if (chunk->ndirty != 0) arena_chunk_dirty_insert(&arena->chunks_dirty, chunk); arena_avail_tree_insert(&arena->runs_avail, arena_mapp_get(chunk, pageind)); } static void arena_avail_remove(arena_t *arena, arena_chunk_t *chunk, size_t pageind, size_t npages, bool maybe_adjac_pred, bool maybe_adjac_succ) { assert(npages == (arena_mapbits_unallocated_size_get(chunk, pageind) >> LG_PAGE)); /* * chunks_dirty is keyed by nruns_{avail,adjac}, so the chunk must be * removed and reinserted even if the run to be removed is clean. */ if (chunk->ndirty != 0) arena_chunk_dirty_remove(&arena->chunks_dirty, chunk); if (maybe_adjac_pred && arena_avail_adjac_pred(chunk, pageind)) chunk->nruns_adjac--; if (maybe_adjac_succ && arena_avail_adjac_succ(chunk, pageind, npages)) chunk->nruns_adjac--; chunk->nruns_avail--; assert(chunk->nruns_avail > chunk->nruns_adjac || (chunk->nruns_avail == 0 && chunk->nruns_adjac == 0)); if (arena_mapbits_dirty_get(chunk, pageind) != 0) { arena->ndirty -= npages; chunk->ndirty -= npages; } if (chunk->ndirty != 0) arena_chunk_dirty_insert(&arena->chunks_dirty, chunk); arena_avail_tree_remove(&arena->runs_avail, arena_mapp_get(chunk, pageind)); } static inline void * arena_run_reg_alloc(arena_run_t *run, arena_bin_info_t *bin_info) { void *ret; unsigned regind; bitmap_t *bitmap = (bitmap_t *)((uintptr_t)run + (uintptr_t)bin_info->bitmap_offset); assert(run->nfree > 0); assert(bitmap_full(bitmap, &bin_info->bitmap_info) == false); regind = bitmap_sfu(bitmap, &bin_info->bitmap_info); ret = (void *)((uintptr_t)run + (uintptr_t)bin_info->reg0_offset + (uintptr_t)(bin_info->reg_interval * regind)); run->nfree--; if (regind == run->nextind) run->nextind++; assert(regind < run->nextind); return (ret); } static inline void arena_run_reg_dalloc(arena_run_t *run, void *ptr) { arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(run); size_t pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; size_t mapbits = arena_mapbits_get(chunk, pageind); size_t binind = arena_ptr_small_binind_get(ptr, mapbits); arena_bin_info_t *bin_info = &arena_bin_info[binind]; unsigned regind = arena_run_regind(run, bin_info, ptr); bitmap_t *bitmap = (bitmap_t *)((uintptr_t)run + (uintptr_t)bin_info->bitmap_offset); assert(run->nfree < bin_info->nregs); /* Freeing an interior pointer can cause assertion failure. */ assert(((uintptr_t)ptr - ((uintptr_t)run + (uintptr_t)bin_info->reg0_offset)) % (uintptr_t)bin_info->reg_interval == 0); assert((uintptr_t)ptr >= (uintptr_t)run + (uintptr_t)bin_info->reg0_offset); /* Freeing an unallocated pointer can cause assertion failure. */ assert(bitmap_get(bitmap, &bin_info->bitmap_info, regind)); bitmap_unset(bitmap, &bin_info->bitmap_info, regind); run->nfree++; } static inline void arena_chunk_validate_zeroed(arena_chunk_t *chunk, size_t run_ind) { size_t i; UNUSED size_t *p = (size_t *)((uintptr_t)chunk + (run_ind << LG_PAGE)); for (i = 0; i < PAGE / sizeof(size_t); i++) assert(p[i] == 0); } static void arena_run_split(arena_t *arena, arena_run_t *run, size_t size, bool large, size_t binind, bool zero) { arena_chunk_t *chunk; size_t run_ind, total_pages, need_pages, rem_pages, i; size_t flag_dirty; assert((large && binind == BININD_INVALID) || (large == false && binind != BININD_INVALID)); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(run); run_ind = (unsigned)(((uintptr_t)run - (uintptr_t)chunk) >> LG_PAGE); flag_dirty = arena_mapbits_dirty_get(chunk, run_ind); total_pages = arena_mapbits_unallocated_size_get(chunk, run_ind) >> LG_PAGE; assert(arena_mapbits_dirty_get(chunk, run_ind+total_pages-1) == flag_dirty); need_pages = (size >> LG_PAGE); assert(need_pages > 0); assert(need_pages <= total_pages); rem_pages = total_pages - need_pages; arena_avail_remove(arena, chunk, run_ind, total_pages, true, true); if (config_stats) { /* * Update stats_cactive if nactive is crossing a chunk * multiple. */ size_t cactive_diff = CHUNK_CEILING((arena->nactive + need_pages) << LG_PAGE) - CHUNK_CEILING(arena->nactive << LG_PAGE); if (cactive_diff != 0) stats_cactive_add(cactive_diff); } arena->nactive += need_pages; /* Keep track of trailing unused pages for later use. */ if (rem_pages > 0) { if (flag_dirty != 0) { arena_mapbits_unallocated_set(chunk, run_ind+need_pages, (rem_pages << LG_PAGE), CHUNK_MAP_DIRTY); arena_mapbits_unallocated_set(chunk, run_ind+total_pages-1, (rem_pages << LG_PAGE), CHUNK_MAP_DIRTY); } else { arena_mapbits_unallocated_set(chunk, run_ind+need_pages, (rem_pages << LG_PAGE), arena_mapbits_unzeroed_get(chunk, run_ind+need_pages)); arena_mapbits_unallocated_set(chunk, run_ind+total_pages-1, (rem_pages << LG_PAGE), arena_mapbits_unzeroed_get(chunk, run_ind+total_pages-1)); } arena_avail_insert(arena, chunk, run_ind+need_pages, rem_pages, false, true); } /* * Update the page map separately for large vs. small runs, since it is * possible to avoid iteration for large mallocs. */ if (large) { if (zero) { if (flag_dirty == 0) { /* * The run is clean, so some pages may be * zeroed (i.e. never before touched). */ for (i = 0; i < need_pages; i++) { if (arena_mapbits_unzeroed_get(chunk, run_ind+i) != 0) { VALGRIND_MAKE_MEM_UNDEFINED( (void *)((uintptr_t) chunk + ((run_ind+i) << LG_PAGE)), PAGE); memset((void *)((uintptr_t) chunk + ((run_ind+i) << LG_PAGE)), 0, PAGE); } else if (config_debug) { VALGRIND_MAKE_MEM_DEFINED( (void *)((uintptr_t) chunk + ((run_ind+i) << LG_PAGE)), PAGE); arena_chunk_validate_zeroed( chunk, run_ind+i); } } } else { /* * The run is dirty, so all pages must be * zeroed. */ VALGRIND_MAKE_MEM_UNDEFINED((void *)((uintptr_t)chunk + (run_ind << LG_PAGE)), (need_pages << LG_PAGE)); memset((void *)((uintptr_t)chunk + (run_ind << LG_PAGE)), 0, (need_pages << LG_PAGE)); } } /* * Set the last element first, in case the run only contains one * page (i.e. both statements set the same element). */ arena_mapbits_large_set(chunk, run_ind+need_pages-1, 0, flag_dirty); arena_mapbits_large_set(chunk, run_ind, size, flag_dirty); } else { assert(zero == false); /* * Propagate the dirty and unzeroed flags to the allocated * small run, so that arena_dalloc_bin_run() has the ability to * conditionally trim clean pages. */ arena_mapbits_small_set(chunk, run_ind, 0, binind, flag_dirty); /* * The first page will always be dirtied during small run * initialization, so a validation failure here would not * actually cause an observable failure. */ if (config_debug && flag_dirty == 0 && arena_mapbits_unzeroed_get(chunk, run_ind) == 0) arena_chunk_validate_zeroed(chunk, run_ind); for (i = 1; i < need_pages - 1; i++) { arena_mapbits_small_set(chunk, run_ind+i, i, binind, 0); if (config_debug && flag_dirty == 0 && arena_mapbits_unzeroed_get(chunk, run_ind+i) == 0) arena_chunk_validate_zeroed(chunk, run_ind+i); } arena_mapbits_small_set(chunk, run_ind+need_pages-1, need_pages-1, binind, flag_dirty); if (config_debug && flag_dirty == 0 && arena_mapbits_unzeroed_get(chunk, run_ind+need_pages-1) == 0) { arena_chunk_validate_zeroed(chunk, run_ind+need_pages-1); } } } static arena_chunk_t * arena_chunk_alloc(arena_t *arena) { arena_chunk_t *chunk; size_t i; if (arena->spare != NULL) { chunk = arena->spare; arena->spare = NULL; assert(arena_mapbits_allocated_get(chunk, map_bias) == 0); assert(arena_mapbits_allocated_get(chunk, chunk_npages-1) == 0); assert(arena_mapbits_unallocated_size_get(chunk, map_bias) == arena_maxclass); assert(arena_mapbits_unallocated_size_get(chunk, chunk_npages-1) == arena_maxclass); assert(arena_mapbits_dirty_get(chunk, map_bias) == arena_mapbits_dirty_get(chunk, chunk_npages-1)); } else { bool zero; size_t unzeroed; zero = false; malloc_mutex_unlock(&arena->lock); chunk = (arena_chunk_t *)chunk_alloc(chunksize, chunksize, false, &zero, arena->dss_prec); malloc_mutex_lock(&arena->lock); if (chunk == NULL) return (NULL); if (config_stats) arena->stats.mapped += chunksize; chunk->arena = arena; /* * Claim that no pages are in use, since the header is merely * overhead. */ chunk->ndirty = 0; chunk->nruns_avail = 0; chunk->nruns_adjac = 0; /* * Initialize the map to contain one maximal free untouched run. * Mark the pages as zeroed iff chunk_alloc() returned a zeroed * chunk. */ unzeroed = zero ? 0 : CHUNK_MAP_UNZEROED; arena_mapbits_unallocated_set(chunk, map_bias, arena_maxclass, unzeroed); /* * There is no need to initialize the internal page map entries * unless the chunk is not zeroed. */ if (zero == false) { for (i = map_bias+1; i < chunk_npages-1; i++) arena_mapbits_unzeroed_set(chunk, i, unzeroed); } else if (config_debug) { for (i = map_bias+1; i < chunk_npages-1; i++) { assert(arena_mapbits_unzeroed_get(chunk, i) == unzeroed); } } arena_mapbits_unallocated_set(chunk, chunk_npages-1, arena_maxclass, unzeroed); } /* Insert the run into the runs_avail tree. */ arena_avail_insert(arena, chunk, map_bias, chunk_npages-map_bias, false, false); return (chunk); } static void arena_chunk_dealloc(arena_t *arena, arena_chunk_t *chunk) { assert(arena_mapbits_allocated_get(chunk, map_bias) == 0); assert(arena_mapbits_allocated_get(chunk, chunk_npages-1) == 0); assert(arena_mapbits_unallocated_size_get(chunk, map_bias) == arena_maxclass); assert(arena_mapbits_unallocated_size_get(chunk, chunk_npages-1) == arena_maxclass); assert(arena_mapbits_dirty_get(chunk, map_bias) == arena_mapbits_dirty_get(chunk, chunk_npages-1)); /* * Remove run from the runs_avail tree, so that the arena does not use * it. */ arena_avail_remove(arena, chunk, map_bias, chunk_npages-map_bias, false, false); if (arena->spare != NULL) { arena_chunk_t *spare = arena->spare; arena->spare = chunk; malloc_mutex_unlock(&arena->lock); chunk_dealloc((void *)spare, chunksize, true); malloc_mutex_lock(&arena->lock); if (config_stats) arena->stats.mapped -= chunksize; } else arena->spare = chunk; } static arena_run_t * arena_run_alloc_helper(arena_t *arena, size_t size, bool large, size_t binind, bool zero) { arena_run_t *run; arena_chunk_map_t *mapelm, key; key.bits = size | CHUNK_MAP_KEY; mapelm = arena_avail_tree_nsearch(&arena->runs_avail, &key); if (mapelm != NULL) { arena_chunk_t *run_chunk = CHUNK_ADDR2BASE(mapelm); size_t pageind = (((uintptr_t)mapelm - (uintptr_t)run_chunk->map) / sizeof(arena_chunk_map_t)) + map_bias; run = (arena_run_t *)((uintptr_t)run_chunk + (pageind << LG_PAGE)); arena_run_split(arena, run, size, large, binind, zero); return (run); } return (NULL); } static arena_run_t * arena_run_alloc(arena_t *arena, size_t size, bool large, size_t binind, bool zero) { arena_chunk_t *chunk; arena_run_t *run; assert(size <= arena_maxclass); assert((size & PAGE_MASK) == 0); assert((large && binind == BININD_INVALID) || (large == false && binind != BININD_INVALID)); /* Search the arena's chunks for the lowest best fit. */ run = arena_run_alloc_helper(arena, size, large, binind, zero); if (run != NULL) return (run); /* * No usable runs. Create a new chunk from which to allocate the run. */ chunk = arena_chunk_alloc(arena); if (chunk != NULL) { run = (arena_run_t *)((uintptr_t)chunk + (map_bias << LG_PAGE)); arena_run_split(arena, run, size, large, binind, zero); return (run); } /* * arena_chunk_alloc() failed, but another thread may have made * sufficient memory available while this one dropped arena->lock in * arena_chunk_alloc(), so search one more time. */ return (arena_run_alloc_helper(arena, size, large, binind, zero)); } static inline void arena_maybe_purge(arena_t *arena) { size_t npurgeable, threshold; /* Don't purge if the option is disabled. */ if (opt_lg_dirty_mult < 0) return; /* Don't purge if all dirty pages are already being purged. */ if (arena->ndirty <= arena->npurgatory) return; npurgeable = arena->ndirty - arena->npurgatory; threshold = (arena->nactive >> opt_lg_dirty_mult); /* * Don't purge unless the number of purgeable pages exceeds the * threshold. */ if (npurgeable <= threshold) return; arena_purge(arena, false); } static inline size_t arena_chunk_purge(arena_t *arena, arena_chunk_t *chunk, bool all) { size_t npurged; ql_head(arena_chunk_map_t) mapelms; arena_chunk_map_t *mapelm; size_t pageind, npages; size_t nmadvise; ql_new(&mapelms); /* * If chunk is the spare, temporarily re-allocate it, 1) so that its * run is reinserted into runs_avail, and 2) so that it cannot be * completely discarded by another thread while arena->lock is dropped * by this thread. Note that the arena_run_dalloc() call will * implicitly deallocate the chunk, so no explicit action is required * in this function to deallocate the chunk. * * Note that once a chunk contains dirty pages, it cannot again contain * a single run unless 1) it is a dirty run, or 2) this function purges * dirty pages and causes the transition to a single clean run. Thus * (chunk == arena->spare) is possible, but it is not possible for * this function to be called on the spare unless it contains a dirty * run. */ if (chunk == arena->spare) { assert(arena_mapbits_dirty_get(chunk, map_bias) != 0); assert(arena_mapbits_dirty_get(chunk, chunk_npages-1) != 0); arena_chunk_alloc(arena); } if (config_stats) arena->stats.purged += chunk->ndirty; /* * Operate on all dirty runs if there is no clean/dirty run * fragmentation. */ if (chunk->nruns_adjac == 0) all = true; /* * Temporarily allocate free dirty runs within chunk. If all is false, * only operate on dirty runs that are fragments; otherwise operate on * all dirty runs. */ for (pageind = map_bias; pageind < chunk_npages; pageind += npages) { mapelm = arena_mapp_get(chunk, pageind); if (arena_mapbits_allocated_get(chunk, pageind) == 0) { size_t run_size = arena_mapbits_unallocated_size_get(chunk, pageind); npages = run_size >> LG_PAGE; assert(pageind + npages <= chunk_npages); assert(arena_mapbits_dirty_get(chunk, pageind) == arena_mapbits_dirty_get(chunk, pageind+npages-1)); if (arena_mapbits_dirty_get(chunk, pageind) != 0 && (all || arena_avail_adjac(chunk, pageind, npages))) { arena_run_t *run = (arena_run_t *)((uintptr_t) chunk + (uintptr_t)(pageind << LG_PAGE)); arena_run_split(arena, run, run_size, true, BININD_INVALID, false); /* Append to list for later processing. */ ql_elm_new(mapelm, u.ql_link); ql_tail_insert(&mapelms, mapelm, u.ql_link); } } else { /* Skip run. */ if (arena_mapbits_large_get(chunk, pageind) != 0) { npages = arena_mapbits_large_size_get(chunk, pageind) >> LG_PAGE; } else { size_t binind; arena_bin_info_t *bin_info; arena_run_t *run = (arena_run_t *)((uintptr_t) chunk + (uintptr_t)(pageind << LG_PAGE)); assert(arena_mapbits_small_runind_get(chunk, pageind) == 0); binind = arena_bin_index(arena, run->bin); bin_info = &arena_bin_info[binind]; npages = bin_info->run_size >> LG_PAGE; } } } assert(pageind == chunk_npages); assert(chunk->ndirty == 0 || all == false); assert(chunk->nruns_adjac == 0); malloc_mutex_unlock(&arena->lock); if (config_stats) nmadvise = 0; npurged = 0; ql_foreach(mapelm, &mapelms, u.ql_link) { bool unzeroed; size_t flag_unzeroed, i; pageind = (((uintptr_t)mapelm - (uintptr_t)chunk->map) / sizeof(arena_chunk_map_t)) + map_bias; npages = arena_mapbits_large_size_get(chunk, pageind) >> LG_PAGE; assert(pageind + npages <= chunk_npages); unzeroed = pages_purge((void *)((uintptr_t)chunk + (pageind << LG_PAGE)), (npages << LG_PAGE)); flag_unzeroed = unzeroed ? CHUNK_MAP_UNZEROED : 0; /* * Set the unzeroed flag for all pages, now that pages_purge() * has returned whether the pages were zeroed as a side effect * of purging. This chunk map modification is safe even though * the arena mutex isn't currently owned by this thread, * because the run is marked as allocated, thus protecting it * from being modified by any other thread. As long as these * writes don't perturb the first and last elements' * CHUNK_MAP_ALLOCATED bits, behavior is well defined. */ for (i = 0; i < npages; i++) { arena_mapbits_unzeroed_set(chunk, pageind+i, flag_unzeroed); } npurged += npages; if (config_stats) nmadvise++; } malloc_mutex_lock(&arena->lock); if (config_stats) arena->stats.nmadvise += nmadvise; /* Deallocate runs. */ for (mapelm = ql_first(&mapelms); mapelm != NULL; mapelm = ql_first(&mapelms)) { arena_run_t *run; pageind = (((uintptr_t)mapelm - (uintptr_t)chunk->map) / sizeof(arena_chunk_map_t)) + map_bias; run = (arena_run_t *)((uintptr_t)chunk + (uintptr_t)(pageind << LG_PAGE)); ql_remove(&mapelms, mapelm, u.ql_link); arena_run_dalloc(arena, run, false, true); } return (npurged); } static arena_chunk_t * chunks_dirty_iter_cb(arena_chunk_tree_t *tree, arena_chunk_t *chunk, void *arg) { size_t *ndirty = (size_t *)arg; assert(chunk->ndirty != 0); *ndirty += chunk->ndirty; return (NULL); } static void arena_purge(arena_t *arena, bool all) { arena_chunk_t *chunk; size_t npurgatory; if (config_debug) { size_t ndirty = 0; arena_chunk_dirty_iter(&arena->chunks_dirty, NULL, chunks_dirty_iter_cb, (void *)&ndirty); assert(ndirty == arena->ndirty); } assert(arena->ndirty > arena->npurgatory || all); assert((arena->nactive >> opt_lg_dirty_mult) < (arena->ndirty - arena->npurgatory) || all); if (config_stats) arena->stats.npurge++; /* * Compute the minimum number of pages that this thread should try to * purge, and add the result to arena->npurgatory. This will keep * multiple threads from racing to reduce ndirty below the threshold. */ { size_t npurgeable = arena->ndirty - arena->npurgatory; if (all == false) { size_t threshold = (arena->nactive >> opt_lg_dirty_mult); npurgatory = npurgeable - threshold; } else npurgatory = npurgeable; } arena->npurgatory += npurgatory; while (npurgatory > 0) { size_t npurgeable, npurged, nunpurged; /* Get next chunk with dirty pages. */ chunk = arena_chunk_dirty_first(&arena->chunks_dirty); if (chunk == NULL) { /* * This thread was unable to purge as many pages as * originally intended, due to races with other threads * that either did some of the purging work, or re-used * dirty pages. */ arena->npurgatory -= npurgatory; return; } npurgeable = chunk->ndirty; assert(npurgeable != 0); if (npurgeable > npurgatory && chunk->nruns_adjac == 0) { /* * This thread will purge all the dirty pages in chunk, * so set npurgatory to reflect this thread's intent to * purge the pages. This tends to reduce the chances * of the following scenario: * * 1) This thread sets arena->npurgatory such that * (arena->ndirty - arena->npurgatory) is at the * threshold. * 2) This thread drops arena->lock. * 3) Another thread causes one or more pages to be * dirtied, and immediately determines that it must * purge dirty pages. * * If this scenario *does* play out, that's okay, * because all of the purging work being done really * needs to happen. */ arena->npurgatory += npurgeable - npurgatory; npurgatory = npurgeable; } /* * Keep track of how many pages are purgeable, versus how many * actually get purged, and adjust counters accordingly. */ arena->npurgatory -= npurgeable; npurgatory -= npurgeable; npurged = arena_chunk_purge(arena, chunk, all); nunpurged = npurgeable - npurged; arena->npurgatory += nunpurged; npurgatory += nunpurged; } } void arena_purge_all(arena_t *arena) { malloc_mutex_lock(&arena->lock); arena_purge(arena, true); malloc_mutex_unlock(&arena->lock); } static void arena_run_dalloc(arena_t *arena, arena_run_t *run, bool dirty, bool cleaned) { arena_chunk_t *chunk; size_t size, run_ind, run_pages, flag_dirty; chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(run); run_ind = (size_t)(((uintptr_t)run - (uintptr_t)chunk) >> LG_PAGE); assert(run_ind >= map_bias); assert(run_ind < chunk_npages); if (arena_mapbits_large_get(chunk, run_ind) != 0) { size = arena_mapbits_large_size_get(chunk, run_ind); assert(size == PAGE || arena_mapbits_large_size_get(chunk, run_ind+(size>>LG_PAGE)-1) == 0); } else { size_t binind = arena_bin_index(arena, run->bin); arena_bin_info_t *bin_info = &arena_bin_info[binind]; size = bin_info->run_size; } run_pages = (size >> LG_PAGE); if (config_stats) { /* * Update stats_cactive if nactive is crossing a chunk * multiple. */ size_t cactive_diff = CHUNK_CEILING(arena->nactive << LG_PAGE) - CHUNK_CEILING((arena->nactive - run_pages) << LG_PAGE); if (cactive_diff != 0) stats_cactive_sub(cactive_diff); } arena->nactive -= run_pages; /* * The run is dirty if the caller claims to have dirtied it, as well as * if it was already dirty before being allocated and the caller * doesn't claim to have cleaned it. */ assert(arena_mapbits_dirty_get(chunk, run_ind) == arena_mapbits_dirty_get(chunk, run_ind+run_pages-1)); if (cleaned == false && arena_mapbits_dirty_get(chunk, run_ind) != 0) dirty = true; flag_dirty = dirty ? CHUNK_MAP_DIRTY : 0; /* Mark pages as unallocated in the chunk map. */ if (dirty) { arena_mapbits_unallocated_set(chunk, run_ind, size, CHUNK_MAP_DIRTY); arena_mapbits_unallocated_set(chunk, run_ind+run_pages-1, size, CHUNK_MAP_DIRTY); } else { arena_mapbits_unallocated_set(chunk, run_ind, size, arena_mapbits_unzeroed_get(chunk, run_ind)); arena_mapbits_unallocated_set(chunk, run_ind+run_pages-1, size, arena_mapbits_unzeroed_get(chunk, run_ind+run_pages-1)); } /* Try to coalesce forward. */ if (run_ind + run_pages < chunk_npages && arena_mapbits_allocated_get(chunk, run_ind+run_pages) == 0 && arena_mapbits_dirty_get(chunk, run_ind+run_pages) == flag_dirty) { size_t nrun_size = arena_mapbits_unallocated_size_get(chunk, run_ind+run_pages); size_t nrun_pages = nrun_size >> LG_PAGE; /* * Remove successor from runs_avail; the coalesced run is * inserted later. */ assert(arena_mapbits_unallocated_size_get(chunk, run_ind+run_pages+nrun_pages-1) == nrun_size); assert(arena_mapbits_dirty_get(chunk, run_ind+run_pages+nrun_pages-1) == flag_dirty); arena_avail_remove(arena, chunk, run_ind+run_pages, nrun_pages, false, true); size += nrun_size; run_pages += nrun_pages; arena_mapbits_unallocated_size_set(chunk, run_ind, size); arena_mapbits_unallocated_size_set(chunk, run_ind+run_pages-1, size); } /* Try to coalesce backward. */ if (run_ind > map_bias && arena_mapbits_allocated_get(chunk, run_ind-1) == 0 && arena_mapbits_dirty_get(chunk, run_ind-1) == flag_dirty) { size_t prun_size = arena_mapbits_unallocated_size_get(chunk, run_ind-1); size_t prun_pages = prun_size >> LG_PAGE; run_ind -= prun_pages; /* * Remove predecessor from runs_avail; the coalesced run is * inserted later. */ assert(arena_mapbits_unallocated_size_get(chunk, run_ind) == prun_size); assert(arena_mapbits_dirty_get(chunk, run_ind) == flag_dirty); arena_avail_remove(arena, chunk, run_ind, prun_pages, true, false); size += prun_size; run_pages += prun_pages; arena_mapbits_unallocated_size_set(chunk, run_ind, size); arena_mapbits_unallocated_size_set(chunk, run_ind+run_pages-1, size); } /* Insert into runs_avail, now that coalescing is complete. */ assert(arena_mapbits_unallocated_size_get(chunk, run_ind) == arena_mapbits_unallocated_size_get(chunk, run_ind+run_pages-1)); assert(arena_mapbits_dirty_get(chunk, run_ind) == arena_mapbits_dirty_get(chunk, run_ind+run_pages-1)); arena_avail_insert(arena, chunk, run_ind, run_pages, true, true); /* Deallocate chunk if it is now completely unused. */ if (size == arena_maxclass) { assert(run_ind == map_bias); assert(run_pages == (arena_maxclass >> LG_PAGE)); arena_chunk_dealloc(arena, chunk); } /* * It is okay to do dirty page processing here even if the chunk was * deallocated above, since in that case it is the spare. Waiting * until after possible chunk deallocation to do dirty processing * allows for an old spare to be fully deallocated, thus decreasing the * chances of spuriously crossing the dirty page purging threshold. */ if (dirty) arena_maybe_purge(arena); } static void arena_run_trim_head(arena_t *arena, arena_chunk_t *chunk, arena_run_t *run, size_t oldsize, size_t newsize) { size_t pageind = ((uintptr_t)run - (uintptr_t)chunk) >> LG_PAGE; size_t head_npages = (oldsize - newsize) >> LG_PAGE; size_t flag_dirty = arena_mapbits_dirty_get(chunk, pageind); assert(oldsize > newsize); /* * Update the chunk map so that arena_run_dalloc() can treat the * leading run as separately allocated. Set the last element of each * run first, in case of single-page runs. */ assert(arena_mapbits_large_size_get(chunk, pageind) == oldsize); arena_mapbits_large_set(chunk, pageind+head_npages-1, 0, flag_dirty); arena_mapbits_large_set(chunk, pageind, oldsize-newsize, flag_dirty); if (config_debug) { UNUSED size_t tail_npages = newsize >> LG_PAGE; assert(arena_mapbits_large_size_get(chunk, pageind+head_npages+tail_npages-1) == 0); assert(arena_mapbits_dirty_get(chunk, pageind+head_npages+tail_npages-1) == flag_dirty); } arena_mapbits_large_set(chunk, pageind+head_npages, newsize, flag_dirty); arena_run_dalloc(arena, run, false, false); } static void arena_run_trim_tail(arena_t *arena, arena_chunk_t *chunk, arena_run_t *run, size_t oldsize, size_t newsize, bool dirty) { size_t pageind = ((uintptr_t)run - (uintptr_t)chunk) >> LG_PAGE; size_t head_npages = newsize >> LG_PAGE; size_t flag_dirty = arena_mapbits_dirty_get(chunk, pageind); assert(oldsize > newsize); /* * Update the chunk map so that arena_run_dalloc() can treat the * trailing run as separately allocated. Set the last element of each * run first, in case of single-page runs. */ assert(arena_mapbits_large_size_get(chunk, pageind) == oldsize); arena_mapbits_large_set(chunk, pageind+head_npages-1, 0, flag_dirty); arena_mapbits_large_set(chunk, pageind, newsize, flag_dirty); if (config_debug) { UNUSED size_t tail_npages = (oldsize - newsize) >> LG_PAGE; assert(arena_mapbits_large_size_get(chunk, pageind+head_npages+tail_npages-1) == 0); assert(arena_mapbits_dirty_get(chunk, pageind+head_npages+tail_npages-1) == flag_dirty); } arena_mapbits_large_set(chunk, pageind+head_npages, oldsize-newsize, flag_dirty); arena_run_dalloc(arena, (arena_run_t *)((uintptr_t)run + newsize), dirty, false); } static arena_run_t * arena_bin_runs_first(arena_bin_t *bin) { arena_chunk_map_t *mapelm = arena_run_tree_first(&bin->runs); if (mapelm != NULL) { arena_chunk_t *chunk; size_t pageind; arena_run_t *run; chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(mapelm); pageind = ((((uintptr_t)mapelm - (uintptr_t)chunk->map) / sizeof(arena_chunk_map_t))) + map_bias; run = (arena_run_t *)((uintptr_t)chunk + (uintptr_t)((pageind - arena_mapbits_small_runind_get(chunk, pageind)) << LG_PAGE)); return (run); } return (NULL); } static void arena_bin_runs_insert(arena_bin_t *bin, arena_run_t *run) { arena_chunk_t *chunk = CHUNK_ADDR2BASE(run); size_t pageind = ((uintptr_t)run - (uintptr_t)chunk) >> LG_PAGE; arena_chunk_map_t *mapelm = arena_mapp_get(chunk, pageind); assert(arena_run_tree_search(&bin->runs, mapelm) == NULL); arena_run_tree_insert(&bin->runs, mapelm); } static void arena_bin_runs_remove(arena_bin_t *bin, arena_run_t *run) { arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(run); size_t pageind = ((uintptr_t)run - (uintptr_t)chunk) >> LG_PAGE; arena_chunk_map_t *mapelm = arena_mapp_get(chunk, pageind); assert(arena_run_tree_search(&bin->runs, mapelm) != NULL); arena_run_tree_remove(&bin->runs, mapelm); } static arena_run_t * arena_bin_nonfull_run_tryget(arena_bin_t *bin) { arena_run_t *run = arena_bin_runs_first(bin); if (run != NULL) { arena_bin_runs_remove(bin, run); if (config_stats) bin->stats.reruns++; } return (run); } static arena_run_t * arena_bin_nonfull_run_get(arena_t *arena, arena_bin_t *bin) { arena_run_t *run; size_t binind; arena_bin_info_t *bin_info; /* Look for a usable run. */ run = arena_bin_nonfull_run_tryget(bin); if (run != NULL) return (run); /* No existing runs have any space available. */ binind = arena_bin_index(arena, bin); bin_info = &arena_bin_info[binind]; /* Allocate a new run. */ malloc_mutex_unlock(&bin->lock); /******************************/ malloc_mutex_lock(&arena->lock); run = arena_run_alloc(arena, bin_info->run_size, false, binind, false); if (run != NULL) { bitmap_t *bitmap = (bitmap_t *)((uintptr_t)run + (uintptr_t)bin_info->bitmap_offset); /* Initialize run internals. */ VALGRIND_MAKE_MEM_UNDEFINED(run, bin_info->reg0_offset - bin_info->redzone_size); run->bin = bin; run->nextind = 0; run->nfree = bin_info->nregs; bitmap_init(bitmap, &bin_info->bitmap_info); } malloc_mutex_unlock(&arena->lock); /********************************/ malloc_mutex_lock(&bin->lock); if (run != NULL) { if (config_stats) { bin->stats.nruns++; bin->stats.curruns++; } return (run); } /* * arena_run_alloc() failed, but another thread may have made * sufficient memory available while this one dropped bin->lock above, * so search one more time. */ run = arena_bin_nonfull_run_tryget(bin); if (run != NULL) return (run); return (NULL); } /* Re-fill bin->runcur, then call arena_run_reg_alloc(). */ static void * arena_bin_malloc_hard(arena_t *arena, arena_bin_t *bin) { void *ret; size_t binind; arena_bin_info_t *bin_info; arena_run_t *run; binind = arena_bin_index(arena, bin); bin_info = &arena_bin_info[binind]; bin->runcur = NULL; run = arena_bin_nonfull_run_get(arena, bin); if (bin->runcur != NULL && bin->runcur->nfree > 0) { /* * Another thread updated runcur while this one ran without the * bin lock in arena_bin_nonfull_run_get(). */ assert(bin->runcur->nfree > 0); ret = arena_run_reg_alloc(bin->runcur, bin_info); if (run != NULL) { arena_chunk_t *chunk; /* * arena_run_alloc() may have allocated run, or it may * have pulled run from the bin's run tree. Therefore * it is unsafe to make any assumptions about how run * has previously been used, and arena_bin_lower_run() * must be called, as if a region were just deallocated * from the run. */ chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(run); if (run->nfree == bin_info->nregs) arena_dalloc_bin_run(arena, chunk, run, bin); else arena_bin_lower_run(arena, chunk, run, bin); } return (ret); } if (run == NULL) return (NULL); bin->runcur = run; assert(bin->runcur->nfree > 0); return (arena_run_reg_alloc(bin->runcur, bin_info)); } void arena_prof_accum(arena_t *arena, uint64_t accumbytes) { cassert(config_prof); if (config_prof && prof_interval != 0) { arena->prof_accumbytes += accumbytes; if (arena->prof_accumbytes >= prof_interval) { prof_idump(); arena->prof_accumbytes -= prof_interval; } } } void arena_tcache_fill_small(arena_t *arena, tcache_bin_t *tbin, size_t binind, uint64_t prof_accumbytes) { unsigned i, nfill; arena_bin_t *bin; arena_run_t *run; void *ptr; assert(tbin->ncached == 0); if (config_prof) { malloc_mutex_lock(&arena->lock); arena_prof_accum(arena, prof_accumbytes); malloc_mutex_unlock(&arena->lock); } bin = &arena->bins[binind]; malloc_mutex_lock(&bin->lock); for (i = 0, nfill = (tcache_bin_info[binind].ncached_max >> tbin->lg_fill_div); i < nfill; i++) { if ((run = bin->runcur) != NULL && run->nfree > 0) ptr = arena_run_reg_alloc(run, &arena_bin_info[binind]); else ptr = arena_bin_malloc_hard(arena, bin); if (ptr == NULL) break; if (config_fill && opt_junk) { arena_alloc_junk_small(ptr, &arena_bin_info[binind], true); } /* Insert such that low regions get used first. */ tbin->avail[nfill - 1 - i] = ptr; } if (config_stats) { bin->stats.allocated += i * arena_bin_info[binind].reg_size; bin->stats.nmalloc += i; bin->stats.nrequests += tbin->tstats.nrequests; bin->stats.nfills++; tbin->tstats.nrequests = 0; } malloc_mutex_unlock(&bin->lock); tbin->ncached = i; } void arena_alloc_junk_small(void *ptr, arena_bin_info_t *bin_info, bool zero) { if (zero) { size_t redzone_size = bin_info->redzone_size; memset((void *)((uintptr_t)ptr - redzone_size), 0xa5, redzone_size); memset((void *)((uintptr_t)ptr + bin_info->reg_size), 0xa5, redzone_size); } else { memset((void *)((uintptr_t)ptr - bin_info->redzone_size), 0xa5, bin_info->reg_interval); } } void arena_dalloc_junk_small(void *ptr, arena_bin_info_t *bin_info) { size_t size = bin_info->reg_size; size_t redzone_size = bin_info->redzone_size; size_t i; bool error = false; for (i = 1; i <= redzone_size; i++) { unsigned byte; if ((byte = *(uint8_t *)((uintptr_t)ptr - i)) != 0xa5) { error = true; malloc_printf(": Corrupt redzone " "%zu byte%s before %p (size %zu), byte=%#x\n", i, (i == 1) ? "" : "s", ptr, size, byte); } } for (i = 0; i < redzone_size; i++) { unsigned byte; if ((byte = *(uint8_t *)((uintptr_t)ptr + size + i)) != 0xa5) { error = true; malloc_printf(": Corrupt redzone " "%zu byte%s after end of %p (size %zu), byte=%#x\n", i, (i == 1) ? "" : "s", ptr, size, byte); } } if (opt_abort && error) abort(); memset((void *)((uintptr_t)ptr - redzone_size), 0x5a, bin_info->reg_interval); } void * arena_malloc_small(arena_t *arena, size_t size, bool zero) { void *ret; arena_bin_t *bin; arena_run_t *run; size_t binind; binind = SMALL_SIZE2BIN(size); assert(binind < NBINS); bin = &arena->bins[binind]; size = arena_bin_info[binind].reg_size; malloc_mutex_lock(&bin->lock); if ((run = bin->runcur) != NULL && run->nfree > 0) ret = arena_run_reg_alloc(run, &arena_bin_info[binind]); else ret = arena_bin_malloc_hard(arena, bin); if (ret == NULL) { malloc_mutex_unlock(&bin->lock); return (NULL); } if (config_stats) { bin->stats.allocated += size; bin->stats.nmalloc++; bin->stats.nrequests++; } malloc_mutex_unlock(&bin->lock); if (config_prof && isthreaded == false) { malloc_mutex_lock(&arena->lock); arena_prof_accum(arena, size); malloc_mutex_unlock(&arena->lock); } if (zero == false) { if (config_fill) { if (opt_junk) { arena_alloc_junk_small(ret, &arena_bin_info[binind], false); } else if (opt_zero) memset(ret, 0, size); } } else { if (config_fill && opt_junk) { arena_alloc_junk_small(ret, &arena_bin_info[binind], true); } VALGRIND_MAKE_MEM_UNDEFINED(ret, size); memset(ret, 0, size); } return (ret); } void * arena_malloc_large(arena_t *arena, size_t size, bool zero) { void *ret; /* Large allocation. */ size = PAGE_CEILING(size); malloc_mutex_lock(&arena->lock); ret = (void *)arena_run_alloc(arena, size, true, BININD_INVALID, zero); if (ret == NULL) { malloc_mutex_unlock(&arena->lock); return (NULL); } if (config_stats) { arena->stats.nmalloc_large++; arena->stats.nrequests_large++; arena->stats.allocated_large += size; arena->stats.lstats[(size >> LG_PAGE) - 1].nmalloc++; arena->stats.lstats[(size >> LG_PAGE) - 1].nrequests++; arena->stats.lstats[(size >> LG_PAGE) - 1].curruns++; } if (config_prof) arena_prof_accum(arena, size); malloc_mutex_unlock(&arena->lock); if (zero == false) { if (config_fill) { if (opt_junk) memset(ret, 0xa5, size); else if (opt_zero) memset(ret, 0, size); } } return (ret); } /* Only handles large allocations that require more than page alignment. */ void * arena_palloc(arena_t *arena, size_t size, size_t alignment, bool zero) { void *ret; size_t alloc_size, leadsize, trailsize; arena_run_t *run; arena_chunk_t *chunk; assert((size & PAGE_MASK) == 0); alignment = PAGE_CEILING(alignment); alloc_size = size + alignment - PAGE; malloc_mutex_lock(&arena->lock); run = arena_run_alloc(arena, alloc_size, true, BININD_INVALID, zero); if (run == NULL) { malloc_mutex_unlock(&arena->lock); return (NULL); } chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(run); leadsize = ALIGNMENT_CEILING((uintptr_t)run, alignment) - (uintptr_t)run; assert(alloc_size >= leadsize + size); trailsize = alloc_size - leadsize - size; ret = (void *)((uintptr_t)run + leadsize); if (leadsize != 0) { arena_run_trim_head(arena, chunk, run, alloc_size, alloc_size - leadsize); } if (trailsize != 0) { arena_run_trim_tail(arena, chunk, ret, size + trailsize, size, false); } if (config_stats) { arena->stats.nmalloc_large++; arena->stats.nrequests_large++; arena->stats.allocated_large += size; arena->stats.lstats[(size >> LG_PAGE) - 1].nmalloc++; arena->stats.lstats[(size >> LG_PAGE) - 1].nrequests++; arena->stats.lstats[(size >> LG_PAGE) - 1].curruns++; } malloc_mutex_unlock(&arena->lock); if (config_fill && zero == false) { if (opt_junk) memset(ret, 0xa5, size); else if (opt_zero) memset(ret, 0, size); } return (ret); } void arena_prof_promoted(const void *ptr, size_t size) { arena_chunk_t *chunk; size_t pageind, binind; cassert(config_prof); assert(ptr != NULL); assert(CHUNK_ADDR2BASE(ptr) != ptr); assert(isalloc(ptr, false) == PAGE); assert(isalloc(ptr, true) == PAGE); assert(size <= SMALL_MAXCLASS); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; binind = SMALL_SIZE2BIN(size); assert(binind < NBINS); arena_mapbits_large_binind_set(chunk, pageind, binind); assert(isalloc(ptr, false) == PAGE); assert(isalloc(ptr, true) == size); } static void arena_dissociate_bin_run(arena_chunk_t *chunk, arena_run_t *run, arena_bin_t *bin) { /* Dissociate run from bin. */ if (run == bin->runcur) bin->runcur = NULL; else { size_t binind = arena_bin_index(chunk->arena, bin); arena_bin_info_t *bin_info = &arena_bin_info[binind]; if (bin_info->nregs != 1) { /* * This block's conditional is necessary because if the * run only contains one region, then it never gets * inserted into the non-full runs tree. */ arena_bin_runs_remove(bin, run); } } } static void arena_dalloc_bin_run(arena_t *arena, arena_chunk_t *chunk, arena_run_t *run, arena_bin_t *bin) { size_t binind; arena_bin_info_t *bin_info; size_t npages, run_ind, past; assert(run != bin->runcur); assert(arena_run_tree_search(&bin->runs, arena_mapp_get(chunk, ((uintptr_t)run-(uintptr_t)chunk)>>LG_PAGE)) == NULL); binind = arena_bin_index(chunk->arena, run->bin); bin_info = &arena_bin_info[binind]; malloc_mutex_unlock(&bin->lock); /******************************/ npages = bin_info->run_size >> LG_PAGE; run_ind = (size_t)(((uintptr_t)run - (uintptr_t)chunk) >> LG_PAGE); past = (size_t)(PAGE_CEILING((uintptr_t)run + (uintptr_t)bin_info->reg0_offset + (uintptr_t)(run->nextind * bin_info->reg_interval - bin_info->redzone_size) - (uintptr_t)chunk) >> LG_PAGE); malloc_mutex_lock(&arena->lock); /* * If the run was originally clean, and some pages were never touched, * trim the clean pages before deallocating the dirty portion of the * run. */ assert(arena_mapbits_dirty_get(chunk, run_ind) == arena_mapbits_dirty_get(chunk, run_ind+npages-1)); if (arena_mapbits_dirty_get(chunk, run_ind) == 0 && past - run_ind < npages) { /* Trim clean pages. Convert to large run beforehand. */ assert(npages > 0); arena_mapbits_large_set(chunk, run_ind, bin_info->run_size, 0); arena_mapbits_large_set(chunk, run_ind+npages-1, 0, 0); arena_run_trim_tail(arena, chunk, run, (npages << LG_PAGE), ((past - run_ind) << LG_PAGE), false); /* npages = past - run_ind; */ } arena_run_dalloc(arena, run, true, false); malloc_mutex_unlock(&arena->lock); /****************************/ malloc_mutex_lock(&bin->lock); if (config_stats) bin->stats.curruns--; } static void arena_bin_lower_run(arena_t *arena, arena_chunk_t *chunk, arena_run_t *run, arena_bin_t *bin) { /* * Make sure that if bin->runcur is non-NULL, it refers to the lowest * non-full run. It is okay to NULL runcur out rather than proactively * keeping it pointing at the lowest non-full run. */ if ((uintptr_t)run < (uintptr_t)bin->runcur) { /* Switch runcur. */ if (bin->runcur->nfree > 0) arena_bin_runs_insert(bin, bin->runcur); bin->runcur = run; if (config_stats) bin->stats.reruns++; } else arena_bin_runs_insert(bin, run); } void arena_dalloc_bin_locked(arena_t *arena, arena_chunk_t *chunk, void *ptr, arena_chunk_map_t *mapelm) { size_t pageind; arena_run_t *run; arena_bin_t *bin; arena_bin_info_t *bin_info; size_t size, binind; pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; run = (arena_run_t *)((uintptr_t)chunk + (uintptr_t)((pageind - arena_mapbits_small_runind_get(chunk, pageind)) << LG_PAGE)); bin = run->bin; binind = arena_ptr_small_binind_get(ptr, mapelm->bits); bin_info = &arena_bin_info[binind]; if (config_fill || config_stats) size = bin_info->reg_size; if (config_fill && opt_junk) arena_dalloc_junk_small(ptr, bin_info); arena_run_reg_dalloc(run, ptr); if (run->nfree == bin_info->nregs) { arena_dissociate_bin_run(chunk, run, bin); arena_dalloc_bin_run(arena, chunk, run, bin); } else if (run->nfree == 1 && run != bin->runcur) arena_bin_lower_run(arena, chunk, run, bin); if (config_stats) { bin->stats.allocated -= size; bin->stats.ndalloc++; } } void arena_dalloc_bin(arena_t *arena, arena_chunk_t *chunk, void *ptr, size_t pageind, arena_chunk_map_t *mapelm) { arena_run_t *run; arena_bin_t *bin; run = (arena_run_t *)((uintptr_t)chunk + (uintptr_t)((pageind - arena_mapbits_small_runind_get(chunk, pageind)) << LG_PAGE)); bin = run->bin; malloc_mutex_lock(&bin->lock); arena_dalloc_bin_locked(arena, chunk, ptr, mapelm); malloc_mutex_unlock(&bin->lock); } void arena_dalloc_small(arena_t *arena, arena_chunk_t *chunk, void *ptr, size_t pageind) { arena_chunk_map_t *mapelm; if (config_debug) { /* arena_ptr_small_binind_get() does extra sanity checking. */ assert(arena_ptr_small_binind_get(ptr, arena_mapbits_get(chunk, pageind)) != BININD_INVALID); } mapelm = arena_mapp_get(chunk, pageind); arena_dalloc_bin(arena, chunk, ptr, pageind, mapelm); } void arena_dalloc_large_locked(arena_t *arena, arena_chunk_t *chunk, void *ptr) { if (config_fill || config_stats) { size_t pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; size_t size = arena_mapbits_large_size_get(chunk, pageind); if (config_fill && config_stats && opt_junk) memset(ptr, 0x5a, size); if (config_stats) { arena->stats.ndalloc_large++; arena->stats.allocated_large -= size; arena->stats.lstats[(size >> LG_PAGE) - 1].ndalloc++; arena->stats.lstats[(size >> LG_PAGE) - 1].curruns--; } } arena_run_dalloc(arena, (arena_run_t *)ptr, true, false); } void arena_dalloc_large(arena_t *arena, arena_chunk_t *chunk, void *ptr) { malloc_mutex_lock(&arena->lock); arena_dalloc_large_locked(arena, chunk, ptr); malloc_mutex_unlock(&arena->lock); } static void arena_ralloc_large_shrink(arena_t *arena, arena_chunk_t *chunk, void *ptr, size_t oldsize, size_t size) { assert(size < oldsize); /* * Shrink the run, and make trailing pages available for other * allocations. */ malloc_mutex_lock(&arena->lock); arena_run_trim_tail(arena, chunk, (arena_run_t *)ptr, oldsize, size, true); if (config_stats) { arena->stats.ndalloc_large++; arena->stats.allocated_large -= oldsize; arena->stats.lstats[(oldsize >> LG_PAGE) - 1].ndalloc++; arena->stats.lstats[(oldsize >> LG_PAGE) - 1].curruns--; arena->stats.nmalloc_large++; arena->stats.nrequests_large++; arena->stats.allocated_large += size; arena->stats.lstats[(size >> LG_PAGE) - 1].nmalloc++; arena->stats.lstats[(size >> LG_PAGE) - 1].nrequests++; arena->stats.lstats[(size >> LG_PAGE) - 1].curruns++; } malloc_mutex_unlock(&arena->lock); } static bool arena_ralloc_large_grow(arena_t *arena, arena_chunk_t *chunk, void *ptr, size_t oldsize, size_t size, size_t extra, bool zero) { size_t pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; size_t npages = oldsize >> LG_PAGE; size_t followsize; assert(oldsize == arena_mapbits_large_size_get(chunk, pageind)); /* Try to extend the run. */ assert(size + extra > oldsize); malloc_mutex_lock(&arena->lock); if (pageind + npages < chunk_npages && arena_mapbits_allocated_get(chunk, pageind+npages) == 0 && (followsize = arena_mapbits_unallocated_size_get(chunk, pageind+npages)) >= size - oldsize) { /* * The next run is available and sufficiently large. Split the * following run, then merge the first part with the existing * allocation. */ size_t flag_dirty; size_t splitsize = (oldsize + followsize <= size + extra) ? followsize : size + extra - oldsize; arena_run_split(arena, (arena_run_t *)((uintptr_t)chunk + ((pageind+npages) << LG_PAGE)), splitsize, true, BININD_INVALID, zero); size = oldsize + splitsize; npages = size >> LG_PAGE; /* * Mark the extended run as dirty if either portion of the run * was dirty before allocation. This is rather pedantic, * because there's not actually any sequence of events that * could cause the resulting run to be passed to * arena_run_dalloc() with the dirty argument set to false * (which is when dirty flag consistency would really matter). */ flag_dirty = arena_mapbits_dirty_get(chunk, pageind) | arena_mapbits_dirty_get(chunk, pageind+npages-1); arena_mapbits_large_set(chunk, pageind, size, flag_dirty); arena_mapbits_large_set(chunk, pageind+npages-1, 0, flag_dirty); if (config_stats) { arena->stats.ndalloc_large++; arena->stats.allocated_large -= oldsize; arena->stats.lstats[(oldsize >> LG_PAGE) - 1].ndalloc++; arena->stats.lstats[(oldsize >> LG_PAGE) - 1].curruns--; arena->stats.nmalloc_large++; arena->stats.nrequests_large++; arena->stats.allocated_large += size; arena->stats.lstats[(size >> LG_PAGE) - 1].nmalloc++; arena->stats.lstats[(size >> LG_PAGE) - 1].nrequests++; arena->stats.lstats[(size >> LG_PAGE) - 1].curruns++; } malloc_mutex_unlock(&arena->lock); return (false); } malloc_mutex_unlock(&arena->lock); return (true); } /* * Try to resize a large allocation, in order to avoid copying. This will * always fail if growing an object, and the following run is already in use. */ static bool arena_ralloc_large(void *ptr, size_t oldsize, size_t size, size_t extra, bool zero) { size_t psize; psize = PAGE_CEILING(size + extra); if (psize == oldsize) { /* Same size class. */ if (config_fill && opt_junk && size < oldsize) { memset((void *)((uintptr_t)ptr + size), 0x5a, oldsize - size); } return (false); } else { arena_chunk_t *chunk; arena_t *arena; chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); arena = chunk->arena; if (psize < oldsize) { /* Fill before shrinking in order avoid a race. */ if (config_fill && opt_junk) { memset((void *)((uintptr_t)ptr + size), 0x5a, oldsize - size); } arena_ralloc_large_shrink(arena, chunk, ptr, oldsize, psize); return (false); } else { bool ret = arena_ralloc_large_grow(arena, chunk, ptr, oldsize, PAGE_CEILING(size), psize - PAGE_CEILING(size), zero); if (config_fill && ret == false && zero == false && opt_zero) { memset((void *)((uintptr_t)ptr + oldsize), 0, size - oldsize); } return (ret); } } } void * arena_ralloc_no_move(void *ptr, size_t oldsize, size_t size, size_t extra, bool zero) { /* * Avoid moving the allocation if the size class can be left the same. */ if (oldsize <= arena_maxclass) { if (oldsize <= SMALL_MAXCLASS) { assert(arena_bin_info[SMALL_SIZE2BIN(oldsize)].reg_size == oldsize); if ((size + extra <= SMALL_MAXCLASS && SMALL_SIZE2BIN(size + extra) == SMALL_SIZE2BIN(oldsize)) || (size <= oldsize && size + extra >= oldsize)) { if (config_fill && opt_junk && size < oldsize) { memset((void *)((uintptr_t)ptr + size), 0x5a, oldsize - size); } return (ptr); } } else { assert(size <= arena_maxclass); if (size + extra > SMALL_MAXCLASS) { if (arena_ralloc_large(ptr, oldsize, size, extra, zero) == false) return (ptr); } } } /* Reallocation would require a move. */ return (NULL); } void * arena_ralloc(arena_t *arena, void *ptr, size_t oldsize, size_t size, size_t extra, size_t alignment, bool zero, bool try_tcache_alloc, bool try_tcache_dalloc) { void *ret; size_t copysize; /* Try to avoid moving the allocation. */ ret = arena_ralloc_no_move(ptr, oldsize, size, extra, zero); if (ret != NULL) return (ret); /* * size and oldsize are different enough that we need to move the * object. In that case, fall back to allocating new space and * copying. */ if (alignment != 0) { size_t usize = sa2u(size + extra, alignment); if (usize == 0) return (NULL); ret = ipallocx(usize, alignment, zero, try_tcache_alloc, arena); } else ret = arena_malloc(arena, size + extra, zero, try_tcache_alloc); if (ret == NULL) { if (extra == 0) return (NULL); /* Try again, this time without extra. */ if (alignment != 0) { size_t usize = sa2u(size, alignment); if (usize == 0) return (NULL); ret = ipallocx(usize, alignment, zero, try_tcache_alloc, arena); } else ret = arena_malloc(arena, size, zero, try_tcache_alloc); if (ret == NULL) return (NULL); } /* Junk/zero-filling were already done by ipalloc()/arena_malloc(). */ /* * Copy at most size bytes (not size+extra), since the caller has no * expectation that the extra bytes will be reliably preserved. */ copysize = (size < oldsize) ? size : oldsize; VALGRIND_MAKE_MEM_UNDEFINED(ret, copysize); memcpy(ret, ptr, copysize); iqallocx(ptr, try_tcache_dalloc); return (ret); } dss_prec_t arena_dss_prec_get(arena_t *arena) { dss_prec_t ret; malloc_mutex_lock(&arena->lock); ret = arena->dss_prec; malloc_mutex_unlock(&arena->lock); return (ret); } void arena_dss_prec_set(arena_t *arena, dss_prec_t dss_prec) { malloc_mutex_lock(&arena->lock); arena->dss_prec = dss_prec; malloc_mutex_unlock(&arena->lock); } void arena_stats_merge(arena_t *arena, const char **dss, size_t *nactive, size_t *ndirty, arena_stats_t *astats, malloc_bin_stats_t *bstats, malloc_large_stats_t *lstats) { unsigned i; malloc_mutex_lock(&arena->lock); *dss = dss_prec_names[arena->dss_prec]; *nactive += arena->nactive; *ndirty += arena->ndirty; astats->mapped += arena->stats.mapped; astats->npurge += arena->stats.npurge; astats->nmadvise += arena->stats.nmadvise; astats->purged += arena->stats.purged; astats->allocated_large += arena->stats.allocated_large; astats->nmalloc_large += arena->stats.nmalloc_large; astats->ndalloc_large += arena->stats.ndalloc_large; astats->nrequests_large += arena->stats.nrequests_large; for (i = 0; i < nlclasses; i++) { lstats[i].nmalloc += arena->stats.lstats[i].nmalloc; lstats[i].ndalloc += arena->stats.lstats[i].ndalloc; lstats[i].nrequests += arena->stats.lstats[i].nrequests; lstats[i].curruns += arena->stats.lstats[i].curruns; } malloc_mutex_unlock(&arena->lock); for (i = 0; i < NBINS; i++) { arena_bin_t *bin = &arena->bins[i]; malloc_mutex_lock(&bin->lock); bstats[i].allocated += bin->stats.allocated; bstats[i].nmalloc += bin->stats.nmalloc; bstats[i].ndalloc += bin->stats.ndalloc; bstats[i].nrequests += bin->stats.nrequests; if (config_tcache) { bstats[i].nfills += bin->stats.nfills; bstats[i].nflushes += bin->stats.nflushes; } bstats[i].nruns += bin->stats.nruns; bstats[i].reruns += bin->stats.reruns; bstats[i].curruns += bin->stats.curruns; malloc_mutex_unlock(&bin->lock); } } bool arena_new(arena_t *arena, unsigned ind) { unsigned i; arena_bin_t *bin; arena->ind = ind; arena->nthreads = 0; if (malloc_mutex_init(&arena->lock)) return (true); if (config_stats) { memset(&arena->stats, 0, sizeof(arena_stats_t)); arena->stats.lstats = (malloc_large_stats_t *)base_alloc(nlclasses * sizeof(malloc_large_stats_t)); if (arena->stats.lstats == NULL) return (true); memset(arena->stats.lstats, 0, nlclasses * sizeof(malloc_large_stats_t)); if (config_tcache) ql_new(&arena->tcache_ql); } if (config_prof) arena->prof_accumbytes = 0; arena->dss_prec = chunk_dss_prec_get(); /* Initialize chunks. */ arena_chunk_dirty_new(&arena->chunks_dirty); arena->spare = NULL; arena->nactive = 0; arena->ndirty = 0; arena->npurgatory = 0; arena_avail_tree_new(&arena->runs_avail); /* Initialize bins. */ for (i = 0; i < NBINS; i++) { bin = &arena->bins[i]; if (malloc_mutex_init(&bin->lock)) return (true); bin->runcur = NULL; arena_run_tree_new(&bin->runs); if (config_stats) memset(&bin->stats, 0, sizeof(malloc_bin_stats_t)); } return (false); } /* * Calculate bin_info->run_size such that it meets the following constraints: * * *) bin_info->run_size >= min_run_size * *) bin_info->run_size <= arena_maxclass * *) run header overhead <= RUN_MAX_OVRHD (or header overhead relaxed). * *) bin_info->nregs <= RUN_MAXREGS * * bin_info->nregs, bin_info->bitmap_offset, and bin_info->reg0_offset are also * calculated here, since these settings are all interdependent. */ static size_t bin_info_run_size_calc(arena_bin_info_t *bin_info, size_t min_run_size) { size_t pad_size; size_t try_run_size, good_run_size; uint32_t try_nregs, good_nregs; uint32_t try_hdr_size, good_hdr_size; uint32_t try_bitmap_offset, good_bitmap_offset; uint32_t try_ctx0_offset, good_ctx0_offset; uint32_t try_redzone0_offset, good_redzone0_offset; assert(min_run_size >= PAGE); assert(min_run_size <= arena_maxclass); /* * Determine redzone size based on minimum alignment and minimum * redzone size. Add padding to the end of the run if it is needed to * align the regions. The padding allows each redzone to be half the * minimum alignment; without the padding, each redzone would have to * be twice as large in order to maintain alignment. */ if (config_fill && opt_redzone) { size_t align_min = ZU(1) << (ffs(bin_info->reg_size) - 1); if (align_min <= REDZONE_MINSIZE) { bin_info->redzone_size = REDZONE_MINSIZE; pad_size = 0; } else { bin_info->redzone_size = align_min >> 1; pad_size = bin_info->redzone_size; } } else { bin_info->redzone_size = 0; pad_size = 0; } bin_info->reg_interval = bin_info->reg_size + (bin_info->redzone_size << 1); /* * Calculate known-valid settings before entering the run_size * expansion loop, so that the first part of the loop always copies * valid settings. * * The do..while loop iteratively reduces the number of regions until * the run header and the regions no longer overlap. A closed formula * would be quite messy, since there is an interdependency between the * header's mask length and the number of regions. */ try_run_size = min_run_size; try_nregs = ((try_run_size - sizeof(arena_run_t)) / bin_info->reg_interval) + 1; /* Counter-act try_nregs-- in loop. */ if (try_nregs > RUN_MAXREGS) { try_nregs = RUN_MAXREGS + 1; /* Counter-act try_nregs-- in loop. */ } do { try_nregs--; try_hdr_size = sizeof(arena_run_t); /* Pad to a long boundary. */ try_hdr_size = LONG_CEILING(try_hdr_size); try_bitmap_offset = try_hdr_size; /* Add space for bitmap. */ try_hdr_size += bitmap_size(try_nregs); if (config_prof && opt_prof && prof_promote == false) { /* Pad to a quantum boundary. */ try_hdr_size = QUANTUM_CEILING(try_hdr_size); try_ctx0_offset = try_hdr_size; /* Add space for one (prof_ctx_t *) per region. */ try_hdr_size += try_nregs * sizeof(prof_ctx_t *); } else try_ctx0_offset = 0; try_redzone0_offset = try_run_size - (try_nregs * bin_info->reg_interval) - pad_size; } while (try_hdr_size > try_redzone0_offset); /* run_size expansion loop. */ do { /* * Copy valid settings before trying more aggressive settings. */ good_run_size = try_run_size; good_nregs = try_nregs; good_hdr_size = try_hdr_size; good_bitmap_offset = try_bitmap_offset; good_ctx0_offset = try_ctx0_offset; good_redzone0_offset = try_redzone0_offset; /* Try more aggressive settings. */ try_run_size += PAGE; try_nregs = ((try_run_size - sizeof(arena_run_t) - pad_size) / bin_info->reg_interval) + 1; /* Counter-act try_nregs-- in loop. */ if (try_nregs > RUN_MAXREGS) { try_nregs = RUN_MAXREGS + 1; /* Counter-act try_nregs-- in loop. */ } do { try_nregs--; try_hdr_size = sizeof(arena_run_t); /* Pad to a long boundary. */ try_hdr_size = LONG_CEILING(try_hdr_size); try_bitmap_offset = try_hdr_size; /* Add space for bitmap. */ try_hdr_size += bitmap_size(try_nregs); if (config_prof && opt_prof && prof_promote == false) { /* Pad to a quantum boundary. */ try_hdr_size = QUANTUM_CEILING(try_hdr_size); try_ctx0_offset = try_hdr_size; /* * Add space for one (prof_ctx_t *) per region. */ try_hdr_size += try_nregs * sizeof(prof_ctx_t *); } try_redzone0_offset = try_run_size - (try_nregs * bin_info->reg_interval) - pad_size; } while (try_hdr_size > try_redzone0_offset); } while (try_run_size <= arena_maxclass && try_run_size <= arena_maxclass && RUN_MAX_OVRHD * (bin_info->reg_interval << 3) > RUN_MAX_OVRHD_RELAX && (try_redzone0_offset << RUN_BFP) > RUN_MAX_OVRHD * try_run_size && try_nregs < RUN_MAXREGS); assert(good_hdr_size <= good_redzone0_offset); /* Copy final settings. */ bin_info->run_size = good_run_size; bin_info->nregs = good_nregs; bin_info->bitmap_offset = good_bitmap_offset; bin_info->ctx0_offset = good_ctx0_offset; bin_info->reg0_offset = good_redzone0_offset + bin_info->redzone_size; assert(bin_info->reg0_offset - bin_info->redzone_size + (bin_info->nregs * bin_info->reg_interval) + pad_size == bin_info->run_size); return (good_run_size); } static void bin_info_init(void) { arena_bin_info_t *bin_info; size_t prev_run_size = PAGE; #define SIZE_CLASS(bin, delta, size) \ bin_info = &arena_bin_info[bin]; \ bin_info->reg_size = size; \ prev_run_size = bin_info_run_size_calc(bin_info, prev_run_size);\ bitmap_info_init(&bin_info->bitmap_info, bin_info->nregs); SIZE_CLASSES #undef SIZE_CLASS } void arena_boot(void) { size_t header_size; unsigned i; /* * Compute the header size such that it is large enough to contain the * page map. The page map is biased to omit entries for the header * itself, so some iteration is necessary to compute the map bias. * * 1) Compute safe header_size and map_bias values that include enough * space for an unbiased page map. * 2) Refine map_bias based on (1) to omit the header pages in the page * map. The resulting map_bias may be one too small. * 3) Refine map_bias based on (2). The result will be >= the result * from (2), and will always be correct. */ map_bias = 0; for (i = 0; i < 3; i++) { header_size = offsetof(arena_chunk_t, map) + (sizeof(arena_chunk_map_t) * (chunk_npages-map_bias)); map_bias = (header_size >> LG_PAGE) + ((header_size & PAGE_MASK) != 0); } assert(map_bias > 0); arena_maxclass = chunksize - (map_bias << LG_PAGE); bin_info_init(); } void arena_prefork(arena_t *arena) { unsigned i; malloc_mutex_prefork(&arena->lock); for (i = 0; i < NBINS; i++) malloc_mutex_prefork(&arena->bins[i].lock); } void arena_postfork_parent(arena_t *arena) { unsigned i; for (i = 0; i < NBINS; i++) malloc_mutex_postfork_parent(&arena->bins[i].lock); malloc_mutex_postfork_parent(&arena->lock); } void arena_postfork_child(arena_t *arena) { unsigned i; for (i = 0; i < NBINS; i++) malloc_mutex_postfork_child(&arena->bins[i].lock); malloc_mutex_postfork_child(&arena->lock); } redis-2.6.16/deps/jemalloc/src/atomic.c000066400000000000000000000001141220734223100176340ustar00rootroot00000000000000#define JEMALLOC_ATOMIC_C_ #include "jemalloc/internal/jemalloc_internal.h" redis-2.6.16/deps/jemalloc/src/base.c000066400000000000000000000053411220734223100173010ustar00rootroot00000000000000#define JEMALLOC_BASE_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Data. */ static malloc_mutex_t base_mtx; /* * Current pages that are being used for internal memory allocations. These * pages are carved up in cacheline-size quanta, so that there is no chance of * false cache line sharing. */ static void *base_pages; static void *base_next_addr; static void *base_past_addr; /* Addr immediately past base_pages. */ static extent_node_t *base_nodes; /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static bool base_pages_alloc(size_t minsize); /******************************************************************************/ static bool base_pages_alloc(size_t minsize) { size_t csize; bool zero; assert(minsize != 0); csize = CHUNK_CEILING(minsize); zero = false; base_pages = chunk_alloc(csize, chunksize, true, &zero, chunk_dss_prec_get()); if (base_pages == NULL) return (true); base_next_addr = base_pages; base_past_addr = (void *)((uintptr_t)base_pages + csize); return (false); } void * base_alloc(size_t size) { void *ret; size_t csize; /* Round size up to nearest multiple of the cacheline size. */ csize = CACHELINE_CEILING(size); malloc_mutex_lock(&base_mtx); /* Make sure there's enough space for the allocation. */ if ((uintptr_t)base_next_addr + csize > (uintptr_t)base_past_addr) { if (base_pages_alloc(csize)) { malloc_mutex_unlock(&base_mtx); return (NULL); } } /* Allocate. */ ret = base_next_addr; base_next_addr = (void *)((uintptr_t)base_next_addr + csize); malloc_mutex_unlock(&base_mtx); return (ret); } void * base_calloc(size_t number, size_t size) { void *ret = base_alloc(number * size); if (ret != NULL) memset(ret, 0, number * size); return (ret); } extent_node_t * base_node_alloc(void) { extent_node_t *ret; malloc_mutex_lock(&base_mtx); if (base_nodes != NULL) { ret = base_nodes; base_nodes = *(extent_node_t **)ret; malloc_mutex_unlock(&base_mtx); } else { malloc_mutex_unlock(&base_mtx); ret = (extent_node_t *)base_alloc(sizeof(extent_node_t)); } return (ret); } void base_node_dealloc(extent_node_t *node) { malloc_mutex_lock(&base_mtx); *(extent_node_t **)node = base_nodes; base_nodes = node; malloc_mutex_unlock(&base_mtx); } bool base_boot(void) { base_nodes = NULL; if (malloc_mutex_init(&base_mtx)) return (true); return (false); } void base_prefork(void) { malloc_mutex_prefork(&base_mtx); } void base_postfork_parent(void) { malloc_mutex_postfork_parent(&base_mtx); } void base_postfork_child(void) { malloc_mutex_postfork_child(&base_mtx); } redis-2.6.16/deps/jemalloc/src/bitmap.c000066400000000000000000000047241220734223100176470ustar00rootroot00000000000000#define JEMALLOC_BITMAP_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static size_t bits2groups(size_t nbits); /******************************************************************************/ static size_t bits2groups(size_t nbits) { return ((nbits >> LG_BITMAP_GROUP_NBITS) + !!(nbits & BITMAP_GROUP_NBITS_MASK)); } void bitmap_info_init(bitmap_info_t *binfo, size_t nbits) { unsigned i; size_t group_count; assert(nbits > 0); assert(nbits <= (ZU(1) << LG_BITMAP_MAXBITS)); /* * Compute the number of groups necessary to store nbits bits, and * progressively work upward through the levels until reaching a level * that requires only one group. */ binfo->levels[0].group_offset = 0; group_count = bits2groups(nbits); for (i = 1; group_count > 1; i++) { assert(i < BITMAP_MAX_LEVELS); binfo->levels[i].group_offset = binfo->levels[i-1].group_offset + group_count; group_count = bits2groups(group_count); } binfo->levels[i].group_offset = binfo->levels[i-1].group_offset + group_count; binfo->nlevels = i; binfo->nbits = nbits; } size_t bitmap_info_ngroups(const bitmap_info_t *binfo) { return (binfo->levels[binfo->nlevels].group_offset << LG_SIZEOF_BITMAP); } size_t bitmap_size(size_t nbits) { bitmap_info_t binfo; bitmap_info_init(&binfo, nbits); return (bitmap_info_ngroups(&binfo)); } void bitmap_init(bitmap_t *bitmap, const bitmap_info_t *binfo) { size_t extra; unsigned i; /* * Bits are actually inverted with regard to the external bitmap * interface, so the bitmap starts out with all 1 bits, except for * trailing unused bits (if any). Note that each group uses bit 0 to * correspond to the first logical bit in the group, so extra bits * are the most significant bits of the last group. */ memset(bitmap, 0xffU, binfo->levels[binfo->nlevels].group_offset << LG_SIZEOF_BITMAP); extra = (BITMAP_GROUP_NBITS - (binfo->nbits & BITMAP_GROUP_NBITS_MASK)) & BITMAP_GROUP_NBITS_MASK; if (extra != 0) bitmap[binfo->levels[1].group_offset - 1] >>= extra; for (i = 1; i < binfo->nlevels; i++) { size_t group_count = binfo->levels[i].group_offset - binfo->levels[i-1].group_offset; extra = (BITMAP_GROUP_NBITS - (group_count & BITMAP_GROUP_NBITS_MASK)) & BITMAP_GROUP_NBITS_MASK; if (extra != 0) bitmap[binfo->levels[i+1].group_offset - 1] >>= extra; } } redis-2.6.16/deps/jemalloc/src/chunk.c000066400000000000000000000247311220734223100175030ustar00rootroot00000000000000#define JEMALLOC_CHUNK_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Data. */ const char *opt_dss = DSS_DEFAULT; size_t opt_lg_chunk = LG_CHUNK_DEFAULT; malloc_mutex_t chunks_mtx; chunk_stats_t stats_chunks; /* * Trees of chunks that were previously allocated (trees differ only in node * ordering). These are used when allocating chunks, in an attempt to re-use * address space. Depending on function, different tree orderings are needed, * which is why there are two trees with the same contents. */ static extent_tree_t chunks_szad_mmap; static extent_tree_t chunks_ad_mmap; static extent_tree_t chunks_szad_dss; static extent_tree_t chunks_ad_dss; rtree_t *chunks_rtree; /* Various chunk-related settings. */ size_t chunksize; size_t chunksize_mask; /* (chunksize - 1). */ size_t chunk_npages; size_t map_bias; size_t arena_maxclass; /* Max size class for arenas. */ /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static void *chunk_recycle(extent_tree_t *chunks_szad, extent_tree_t *chunks_ad, size_t size, size_t alignment, bool base, bool *zero); static void chunk_record(extent_tree_t *chunks_szad, extent_tree_t *chunks_ad, void *chunk, size_t size); /******************************************************************************/ static void * chunk_recycle(extent_tree_t *chunks_szad, extent_tree_t *chunks_ad, size_t size, size_t alignment, bool base, bool *zero) { void *ret; extent_node_t *node; extent_node_t key; size_t alloc_size, leadsize, trailsize; bool zeroed; if (base) { /* * This function may need to call base_node_{,de}alloc(), but * the current chunk allocation request is on behalf of the * base allocator. Avoid deadlock (and if that weren't an * issue, potential for infinite recursion) by returning NULL. */ return (NULL); } alloc_size = size + alignment - chunksize; /* Beware size_t wrap-around. */ if (alloc_size < size) return (NULL); key.addr = NULL; key.size = alloc_size; malloc_mutex_lock(&chunks_mtx); node = extent_tree_szad_nsearch(chunks_szad, &key); if (node == NULL) { malloc_mutex_unlock(&chunks_mtx); return (NULL); } leadsize = ALIGNMENT_CEILING((uintptr_t)node->addr, alignment) - (uintptr_t)node->addr; assert(node->size >= leadsize + size); trailsize = node->size - leadsize - size; ret = (void *)((uintptr_t)node->addr + leadsize); /* Remove node from the tree. */ extent_tree_szad_remove(chunks_szad, node); extent_tree_ad_remove(chunks_ad, node); if (leadsize != 0) { /* Insert the leading space as a smaller chunk. */ node->size = leadsize; extent_tree_szad_insert(chunks_szad, node); extent_tree_ad_insert(chunks_ad, node); node = NULL; } if (trailsize != 0) { /* Insert the trailing space as a smaller chunk. */ if (node == NULL) { /* * An additional node is required, but * base_node_alloc() can cause a new base chunk to be * allocated. Drop chunks_mtx in order to avoid * deadlock, and if node allocation fails, deallocate * the result before returning an error. */ malloc_mutex_unlock(&chunks_mtx); node = base_node_alloc(); if (node == NULL) { chunk_dealloc(ret, size, true); return (NULL); } malloc_mutex_lock(&chunks_mtx); } node->addr = (void *)((uintptr_t)(ret) + size); node->size = trailsize; extent_tree_szad_insert(chunks_szad, node); extent_tree_ad_insert(chunks_ad, node); node = NULL; } malloc_mutex_unlock(&chunks_mtx); zeroed = false; if (node != NULL) { if (node->zeroed) { zeroed = true; *zero = true; } base_node_dealloc(node); } if (zeroed == false && *zero) { VALGRIND_MAKE_MEM_UNDEFINED(ret, size); memset(ret, 0, size); } return (ret); } /* * If the caller specifies (*zero == false), it is still possible to receive * zeroed memory, in which case *zero is toggled to true. arena_chunk_alloc() * takes advantage of this to avoid demanding zeroed chunks, but taking * advantage of them if they are returned. */ void * chunk_alloc(size_t size, size_t alignment, bool base, bool *zero, dss_prec_t dss_prec) { void *ret; assert(size != 0); assert((size & chunksize_mask) == 0); assert(alignment != 0); assert((alignment & chunksize_mask) == 0); /* "primary" dss. */ if (config_dss && dss_prec == dss_prec_primary) { if ((ret = chunk_recycle(&chunks_szad_dss, &chunks_ad_dss, size, alignment, base, zero)) != NULL) goto label_return; if ((ret = chunk_alloc_dss(size, alignment, zero)) != NULL) goto label_return; } /* mmap. */ if ((ret = chunk_recycle(&chunks_szad_mmap, &chunks_ad_mmap, size, alignment, base, zero)) != NULL) goto label_return; if ((ret = chunk_alloc_mmap(size, alignment, zero)) != NULL) goto label_return; /* "secondary" dss. */ if (config_dss && dss_prec == dss_prec_secondary) { if ((ret = chunk_recycle(&chunks_szad_dss, &chunks_ad_dss, size, alignment, base, zero)) != NULL) goto label_return; if ((ret = chunk_alloc_dss(size, alignment, zero)) != NULL) goto label_return; } /* All strategies for allocation failed. */ ret = NULL; label_return: if (config_ivsalloc && base == false && ret != NULL) { if (rtree_set(chunks_rtree, (uintptr_t)ret, ret)) { chunk_dealloc(ret, size, true); return (NULL); } } if ((config_stats || config_prof) && ret != NULL) { bool gdump; malloc_mutex_lock(&chunks_mtx); if (config_stats) stats_chunks.nchunks += (size / chunksize); stats_chunks.curchunks += (size / chunksize); if (stats_chunks.curchunks > stats_chunks.highchunks) { stats_chunks.highchunks = stats_chunks.curchunks; if (config_prof) gdump = true; } else if (config_prof) gdump = false; malloc_mutex_unlock(&chunks_mtx); if (config_prof && opt_prof && opt_prof_gdump && gdump) prof_gdump(); } if (config_debug && *zero && ret != NULL) { size_t i; size_t *p = (size_t *)(uintptr_t)ret; VALGRIND_MAKE_MEM_DEFINED(ret, size); for (i = 0; i < size / sizeof(size_t); i++) assert(p[i] == 0); } assert(CHUNK_ADDR2BASE(ret) == ret); return (ret); } static void chunk_record(extent_tree_t *chunks_szad, extent_tree_t *chunks_ad, void *chunk, size_t size) { bool unzeroed; extent_node_t *xnode, *node, *prev, key; unzeroed = pages_purge(chunk, size); /* * Allocate a node before acquiring chunks_mtx even though it might not * be needed, because base_node_alloc() may cause a new base chunk to * be allocated, which could cause deadlock if chunks_mtx were already * held. */ xnode = base_node_alloc(); malloc_mutex_lock(&chunks_mtx); key.addr = (void *)((uintptr_t)chunk + size); node = extent_tree_ad_nsearch(chunks_ad, &key); /* Try to coalesce forward. */ if (node != NULL && node->addr == key.addr) { /* * Coalesce chunk with the following address range. This does * not change the position within chunks_ad, so only * remove/insert from/into chunks_szad. */ extent_tree_szad_remove(chunks_szad, node); node->addr = chunk; node->size += size; node->zeroed = (node->zeroed && (unzeroed == false)); extent_tree_szad_insert(chunks_szad, node); if (xnode != NULL) base_node_dealloc(xnode); } else { /* Coalescing forward failed, so insert a new node. */ if (xnode == NULL) { /* * base_node_alloc() failed, which is an exceedingly * unlikely failure. Leak chunk; its pages have * already been purged, so this is only a virtual * memory leak. */ malloc_mutex_unlock(&chunks_mtx); return; } node = xnode; node->addr = chunk; node->size = size; node->zeroed = (unzeroed == false); extent_tree_ad_insert(chunks_ad, node); extent_tree_szad_insert(chunks_szad, node); } /* Try to coalesce backward. */ prev = extent_tree_ad_prev(chunks_ad, node); if (prev != NULL && (void *)((uintptr_t)prev->addr + prev->size) == chunk) { /* * Coalesce chunk with the previous address range. This does * not change the position within chunks_ad, so only * remove/insert node from/into chunks_szad. */ extent_tree_szad_remove(chunks_szad, prev); extent_tree_ad_remove(chunks_ad, prev); extent_tree_szad_remove(chunks_szad, node); node->addr = prev->addr; node->size += prev->size; node->zeroed = (node->zeroed && prev->zeroed); extent_tree_szad_insert(chunks_szad, node); base_node_dealloc(prev); } malloc_mutex_unlock(&chunks_mtx); } void chunk_unmap(void *chunk, size_t size) { assert(chunk != NULL); assert(CHUNK_ADDR2BASE(chunk) == chunk); assert(size != 0); assert((size & chunksize_mask) == 0); if (config_dss && chunk_in_dss(chunk)) chunk_record(&chunks_szad_dss, &chunks_ad_dss, chunk, size); else if (chunk_dealloc_mmap(chunk, size)) chunk_record(&chunks_szad_mmap, &chunks_ad_mmap, chunk, size); } void chunk_dealloc(void *chunk, size_t size, bool unmap) { assert(chunk != NULL); assert(CHUNK_ADDR2BASE(chunk) == chunk); assert(size != 0); assert((size & chunksize_mask) == 0); if (config_ivsalloc) rtree_set(chunks_rtree, (uintptr_t)chunk, NULL); if (config_stats || config_prof) { malloc_mutex_lock(&chunks_mtx); assert(stats_chunks.curchunks >= (size / chunksize)); stats_chunks.curchunks -= (size / chunksize); malloc_mutex_unlock(&chunks_mtx); } if (unmap) chunk_unmap(chunk, size); } bool chunk_boot(void) { /* Set variables according to the value of opt_lg_chunk. */ chunksize = (ZU(1) << opt_lg_chunk); assert(chunksize >= PAGE); chunksize_mask = chunksize - 1; chunk_npages = (chunksize >> LG_PAGE); if (config_stats || config_prof) { if (malloc_mutex_init(&chunks_mtx)) return (true); memset(&stats_chunks, 0, sizeof(chunk_stats_t)); } if (config_dss && chunk_dss_boot()) return (true); extent_tree_szad_new(&chunks_szad_mmap); extent_tree_ad_new(&chunks_ad_mmap); extent_tree_szad_new(&chunks_szad_dss); extent_tree_ad_new(&chunks_ad_dss); if (config_ivsalloc) { chunks_rtree = rtree_new((ZU(1) << (LG_SIZEOF_PTR+3)) - opt_lg_chunk); if (chunks_rtree == NULL) return (true); } return (false); } void chunk_prefork(void) { malloc_mutex_lock(&chunks_mtx); if (config_ivsalloc) rtree_prefork(chunks_rtree); chunk_dss_prefork(); } void chunk_postfork_parent(void) { chunk_dss_postfork_parent(); if (config_ivsalloc) rtree_postfork_parent(chunks_rtree); malloc_mutex_postfork_parent(&chunks_mtx); } void chunk_postfork_child(void) { chunk_dss_postfork_child(); if (config_ivsalloc) rtree_postfork_child(chunks_rtree); malloc_mutex_postfork_child(&chunks_mtx); } redis-2.6.16/deps/jemalloc/src/chunk_dss.c000066400000000000000000000101071220734223100203440ustar00rootroot00000000000000#define JEMALLOC_CHUNK_DSS_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Data. */ const char *dss_prec_names[] = { "disabled", "primary", "secondary", "N/A" }; /* Current dss precedence default, used when creating new arenas. */ static dss_prec_t dss_prec_default = DSS_PREC_DEFAULT; /* * Protects sbrk() calls. This avoids malloc races among threads, though it * does not protect against races with threads that call sbrk() directly. */ static malloc_mutex_t dss_mtx; /* Base address of the DSS. */ static void *dss_base; /* Current end of the DSS, or ((void *)-1) if the DSS is exhausted. */ static void *dss_prev; /* Current upper limit on DSS addresses. */ static void *dss_max; /******************************************************************************/ #ifndef JEMALLOC_HAVE_SBRK static void * sbrk(intptr_t increment) { not_implemented(); return (NULL); } #endif dss_prec_t chunk_dss_prec_get(void) { dss_prec_t ret; if (config_dss == false) return (dss_prec_disabled); malloc_mutex_lock(&dss_mtx); ret = dss_prec_default; malloc_mutex_unlock(&dss_mtx); return (ret); } bool chunk_dss_prec_set(dss_prec_t dss_prec) { if (config_dss == false) return (true); malloc_mutex_lock(&dss_mtx); dss_prec_default = dss_prec; malloc_mutex_unlock(&dss_mtx); return (false); } void * chunk_alloc_dss(size_t size, size_t alignment, bool *zero) { void *ret; cassert(config_dss); assert(size > 0 && (size & chunksize_mask) == 0); assert(alignment > 0 && (alignment & chunksize_mask) == 0); /* * sbrk() uses a signed increment argument, so take care not to * interpret a huge allocation request as a negative increment. */ if ((intptr_t)size < 0) return (NULL); malloc_mutex_lock(&dss_mtx); if (dss_prev != (void *)-1) { size_t gap_size, cpad_size; void *cpad, *dss_next; intptr_t incr; /* * The loop is necessary to recover from races with other * threads that are using the DSS for something other than * malloc. */ do { /* Get the current end of the DSS. */ dss_max = sbrk(0); /* * Calculate how much padding is necessary to * chunk-align the end of the DSS. */ gap_size = (chunksize - CHUNK_ADDR2OFFSET(dss_max)) & chunksize_mask; /* * Compute how much chunk-aligned pad space (if any) is * necessary to satisfy alignment. This space can be * recycled for later use. */ cpad = (void *)((uintptr_t)dss_max + gap_size); ret = (void *)ALIGNMENT_CEILING((uintptr_t)dss_max, alignment); cpad_size = (uintptr_t)ret - (uintptr_t)cpad; dss_next = (void *)((uintptr_t)ret + size); if ((uintptr_t)ret < (uintptr_t)dss_max || (uintptr_t)dss_next < (uintptr_t)dss_max) { /* Wrap-around. */ malloc_mutex_unlock(&dss_mtx); return (NULL); } incr = gap_size + cpad_size + size; dss_prev = sbrk(incr); if (dss_prev == dss_max) { /* Success. */ dss_max = dss_next; malloc_mutex_unlock(&dss_mtx); if (cpad_size != 0) chunk_unmap(cpad, cpad_size); if (*zero) { VALGRIND_MAKE_MEM_UNDEFINED(ret, size); memset(ret, 0, size); } return (ret); } } while (dss_prev != (void *)-1); } malloc_mutex_unlock(&dss_mtx); return (NULL); } bool chunk_in_dss(void *chunk) { bool ret; cassert(config_dss); malloc_mutex_lock(&dss_mtx); if ((uintptr_t)chunk >= (uintptr_t)dss_base && (uintptr_t)chunk < (uintptr_t)dss_max) ret = true; else ret = false; malloc_mutex_unlock(&dss_mtx); return (ret); } bool chunk_dss_boot(void) { cassert(config_dss); if (malloc_mutex_init(&dss_mtx)) return (true); dss_base = sbrk(0); dss_prev = dss_base; dss_max = dss_base; return (false); } void chunk_dss_prefork(void) { if (config_dss) malloc_mutex_prefork(&dss_mtx); } void chunk_dss_postfork_parent(void) { if (config_dss) malloc_mutex_postfork_parent(&dss_mtx); } void chunk_dss_postfork_child(void) { if (config_dss) malloc_mutex_postfork_child(&dss_mtx); } /******************************************************************************/ redis-2.6.16/deps/jemalloc/src/chunk_mmap.c000066400000000000000000000115021220734223100205050ustar00rootroot00000000000000#define JEMALLOC_CHUNK_MMAP_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static void *pages_map(void *addr, size_t size); static void pages_unmap(void *addr, size_t size); static void *chunk_alloc_mmap_slow(size_t size, size_t alignment, bool *zero); /******************************************************************************/ static void * pages_map(void *addr, size_t size) { void *ret; assert(size != 0); #ifdef _WIN32 /* * If VirtualAlloc can't allocate at the given address when one is * given, it fails and returns NULL. */ ret = VirtualAlloc(addr, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE); #else /* * We don't use MAP_FIXED here, because it can cause the *replacement* * of existing mappings, and we only want to create new mappings. */ ret = mmap(addr, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0); assert(ret != NULL); if (ret == MAP_FAILED) ret = NULL; else if (addr != NULL && ret != addr) { /* * We succeeded in mapping memory, but not in the right place. */ if (munmap(ret, size) == -1) { char buf[BUFERROR_BUF]; buferror(buf, sizeof(buf)); malloc_printf(": Error in " #ifdef _WIN32 "VirtualFree" #else "munmap" #endif "(): %s\n", buf); if (opt_abort) abort(); } } static void * pages_trim(void *addr, size_t alloc_size, size_t leadsize, size_t size) { void *ret = (void *)((uintptr_t)addr + leadsize); assert(alloc_size >= leadsize + size); #ifdef _WIN32 { void *new_addr; pages_unmap(addr, alloc_size); new_addr = pages_map(ret, size); if (new_addr == ret) return (ret); if (new_addr) pages_unmap(new_addr, size); return (NULL); } #else { size_t trailsize = alloc_size - leadsize - size; if (leadsize != 0) pages_unmap(addr, leadsize); if (trailsize != 0) pages_unmap((void *)((uintptr_t)ret + size), trailsize); return (ret); } #endif } bool pages_purge(void *addr, size_t length) { bool unzeroed; #ifdef _WIN32 VirtualAlloc(addr, length, MEM_RESET, PAGE_READWRITE); unzeroed = true; #else # ifdef JEMALLOC_PURGE_MADVISE_DONTNEED # define JEMALLOC_MADV_PURGE MADV_DONTNEED # define JEMALLOC_MADV_ZEROS true # elif defined(JEMALLOC_PURGE_MADVISE_FREE) # define JEMALLOC_MADV_PURGE MADV_FREE # define JEMALLOC_MADV_ZEROS false # else # error "No method defined for purging unused dirty pages." # endif int err = madvise(addr, length, JEMALLOC_MADV_PURGE); unzeroed = (JEMALLOC_MADV_ZEROS == false || err != 0); # undef JEMALLOC_MADV_PURGE # undef JEMALLOC_MADV_ZEROS #endif return (unzeroed); } static void * chunk_alloc_mmap_slow(size_t size, size_t alignment, bool *zero) { void *ret, *pages; size_t alloc_size, leadsize; alloc_size = size + alignment - PAGE; /* Beware size_t wrap-around. */ if (alloc_size < size) return (NULL); do { pages = pages_map(NULL, alloc_size); if (pages == NULL) return (NULL); leadsize = ALIGNMENT_CEILING((uintptr_t)pages, alignment) - (uintptr_t)pages; ret = pages_trim(pages, alloc_size, leadsize, size); } while (ret == NULL); assert(ret != NULL); *zero = true; return (ret); } void * chunk_alloc_mmap(size_t size, size_t alignment, bool *zero) { void *ret; size_t offset; /* * Ideally, there would be a way to specify alignment to mmap() (like * NetBSD has), but in the absence of such a feature, we have to work * hard to efficiently create aligned mappings. The reliable, but * slow method is to create a mapping that is over-sized, then trim the * excess. However, that always results in one or two calls to * pages_unmap(). * * Optimistically try mapping precisely the right amount before falling * back to the slow method, with the expectation that the optimistic * approach works most of the time. */ assert(alignment != 0); assert((alignment & chunksize_mask) == 0); ret = pages_map(NULL, size); if (ret == NULL) return (NULL); offset = ALIGNMENT_ADDR2OFFSET(ret, alignment); if (offset != 0) { pages_unmap(ret, size); return (chunk_alloc_mmap_slow(size, alignment, zero)); } assert(ret != NULL); *zero = true; return (ret); } bool chunk_dealloc_mmap(void *chunk, size_t size) { if (config_munmap) pages_unmap(chunk, size); return (config_munmap == false); } redis-2.6.16/deps/jemalloc/src/ckh.c000066400000000000000000000352221220734223100171350ustar00rootroot00000000000000/* ******************************************************************************* * Implementation of (2^1+,2) cuckoo hashing, where 2^1+ indicates that each * hash bucket contains 2^n cells, for n >= 1, and 2 indicates that two hash * functions are employed. The original cuckoo hashing algorithm was described * in: * * Pagh, R., F.F. Rodler (2004) Cuckoo Hashing. Journal of Algorithms * 51(2):122-144. * * Generalization of cuckoo hashing was discussed in: * * Erlingsson, U., M. Manasse, F. McSherry (2006) A cool and practical * alternative to traditional hash tables. In Proceedings of the 7th * Workshop on Distributed Data and Structures (WDAS'06), Santa Clara, CA, * January 2006. * * This implementation uses precisely two hash functions because that is the * fewest that can work, and supporting multiple hashes is an implementation * burden. Here is a reproduction of Figure 1 from Erlingsson et al. (2006) * that shows approximate expected maximum load factors for various * configurations: * * | #cells/bucket | * #hashes | 1 | 2 | 4 | 8 | * --------+-------+-------+-------+-------+ * 1 | 0.006 | 0.006 | 0.03 | 0.12 | * 2 | 0.49 | 0.86 |>0.93< |>0.96< | * 3 | 0.91 | 0.97 | 0.98 | 0.999 | * 4 | 0.97 | 0.99 | 0.999 | | * * The number of cells per bucket is chosen such that a bucket fits in one cache * line. So, on 32- and 64-bit systems, we use (8,2) and (4,2) cuckoo hashing, * respectively. * ******************************************************************************/ #define JEMALLOC_CKH_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static bool ckh_grow(ckh_t *ckh); static void ckh_shrink(ckh_t *ckh); /******************************************************************************/ /* * Search bucket for key and return the cell number if found; SIZE_T_MAX * otherwise. */ JEMALLOC_INLINE size_t ckh_bucket_search(ckh_t *ckh, size_t bucket, const void *key) { ckhc_t *cell; unsigned i; for (i = 0; i < (ZU(1) << LG_CKH_BUCKET_CELLS); i++) { cell = &ckh->tab[(bucket << LG_CKH_BUCKET_CELLS) + i]; if (cell->key != NULL && ckh->keycomp(key, cell->key)) return ((bucket << LG_CKH_BUCKET_CELLS) + i); } return (SIZE_T_MAX); } /* * Search table for key and return cell number if found; SIZE_T_MAX otherwise. */ JEMALLOC_INLINE size_t ckh_isearch(ckh_t *ckh, const void *key) { size_t hash1, hash2, bucket, cell; assert(ckh != NULL); ckh->hash(key, ckh->lg_curbuckets, &hash1, &hash2); /* Search primary bucket. */ bucket = hash1 & ((ZU(1) << ckh->lg_curbuckets) - 1); cell = ckh_bucket_search(ckh, bucket, key); if (cell != SIZE_T_MAX) return (cell); /* Search secondary bucket. */ bucket = hash2 & ((ZU(1) << ckh->lg_curbuckets) - 1); cell = ckh_bucket_search(ckh, bucket, key); return (cell); } JEMALLOC_INLINE bool ckh_try_bucket_insert(ckh_t *ckh, size_t bucket, const void *key, const void *data) { ckhc_t *cell; unsigned offset, i; /* * Cycle through the cells in the bucket, starting at a random position. * The randomness avoids worst-case search overhead as buckets fill up. */ prng32(offset, LG_CKH_BUCKET_CELLS, ckh->prng_state, CKH_A, CKH_C); for (i = 0; i < (ZU(1) << LG_CKH_BUCKET_CELLS); i++) { cell = &ckh->tab[(bucket << LG_CKH_BUCKET_CELLS) + ((i + offset) & ((ZU(1) << LG_CKH_BUCKET_CELLS) - 1))]; if (cell->key == NULL) { cell->key = key; cell->data = data; ckh->count++; return (false); } } return (true); } /* * No space is available in bucket. Randomly evict an item, then try to find an * alternate location for that item. Iteratively repeat this * eviction/relocation procedure until either success or detection of an * eviction/relocation bucket cycle. */ JEMALLOC_INLINE bool ckh_evict_reloc_insert(ckh_t *ckh, size_t argbucket, void const **argkey, void const **argdata) { const void *key, *data, *tkey, *tdata; ckhc_t *cell; size_t hash1, hash2, bucket, tbucket; unsigned i; bucket = argbucket; key = *argkey; data = *argdata; while (true) { /* * Choose a random item within the bucket to evict. This is * critical to correct function, because without (eventually) * evicting all items within a bucket during iteration, it * would be possible to get stuck in an infinite loop if there * were an item for which both hashes indicated the same * bucket. */ prng32(i, LG_CKH_BUCKET_CELLS, ckh->prng_state, CKH_A, CKH_C); cell = &ckh->tab[(bucket << LG_CKH_BUCKET_CELLS) + i]; assert(cell->key != NULL); /* Swap cell->{key,data} and {key,data} (evict). */ tkey = cell->key; tdata = cell->data; cell->key = key; cell->data = data; key = tkey; data = tdata; #ifdef CKH_COUNT ckh->nrelocs++; #endif /* Find the alternate bucket for the evicted item. */ ckh->hash(key, ckh->lg_curbuckets, &hash1, &hash2); tbucket = hash2 & ((ZU(1) << ckh->lg_curbuckets) - 1); if (tbucket == bucket) { tbucket = hash1 & ((ZU(1) << ckh->lg_curbuckets) - 1); /* * It may be that (tbucket == bucket) still, if the * item's hashes both indicate this bucket. However, * we are guaranteed to eventually escape this bucket * during iteration, assuming pseudo-random item * selection (true randomness would make infinite * looping a remote possibility). The reason we can * never get trapped forever is that there are two * cases: * * 1) This bucket == argbucket, so we will quickly * detect an eviction cycle and terminate. * 2) An item was evicted to this bucket from another, * which means that at least one item in this bucket * has hashes that indicate distinct buckets. */ } /* Check for a cycle. */ if (tbucket == argbucket) { *argkey = key; *argdata = data; return (true); } bucket = tbucket; if (ckh_try_bucket_insert(ckh, bucket, key, data) == false) return (false); } } JEMALLOC_INLINE bool ckh_try_insert(ckh_t *ckh, void const**argkey, void const**argdata) { size_t hash1, hash2, bucket; const void *key = *argkey; const void *data = *argdata; ckh->hash(key, ckh->lg_curbuckets, &hash1, &hash2); /* Try to insert in primary bucket. */ bucket = hash1 & ((ZU(1) << ckh->lg_curbuckets) - 1); if (ckh_try_bucket_insert(ckh, bucket, key, data) == false) return (false); /* Try to insert in secondary bucket. */ bucket = hash2 & ((ZU(1) << ckh->lg_curbuckets) - 1); if (ckh_try_bucket_insert(ckh, bucket, key, data) == false) return (false); /* * Try to find a place for this item via iterative eviction/relocation. */ return (ckh_evict_reloc_insert(ckh, bucket, argkey, argdata)); } /* * Try to rebuild the hash table from scratch by inserting all items from the * old table into the new. */ JEMALLOC_INLINE bool ckh_rebuild(ckh_t *ckh, ckhc_t *aTab) { size_t count, i, nins; const void *key, *data; count = ckh->count; ckh->count = 0; for (i = nins = 0; nins < count; i++) { if (aTab[i].key != NULL) { key = aTab[i].key; data = aTab[i].data; if (ckh_try_insert(ckh, &key, &data)) { ckh->count = count; return (true); } nins++; } } return (false); } static bool ckh_grow(ckh_t *ckh) { bool ret; ckhc_t *tab, *ttab; size_t lg_curcells; unsigned lg_prevbuckets; #ifdef CKH_COUNT ckh->ngrows++; #endif /* * It is possible (though unlikely, given well behaved hashes) that the * table will have to be doubled more than once in order to create a * usable table. */ lg_prevbuckets = ckh->lg_curbuckets; lg_curcells = ckh->lg_curbuckets + LG_CKH_BUCKET_CELLS; while (true) { size_t usize; lg_curcells++; usize = sa2u(sizeof(ckhc_t) << lg_curcells, CACHELINE); if (usize == 0) { ret = true; goto label_return; } tab = (ckhc_t *)ipalloc(usize, CACHELINE, true); if (tab == NULL) { ret = true; goto label_return; } /* Swap in new table. */ ttab = ckh->tab; ckh->tab = tab; tab = ttab; ckh->lg_curbuckets = lg_curcells - LG_CKH_BUCKET_CELLS; if (ckh_rebuild(ckh, tab) == false) { idalloc(tab); break; } /* Rebuilding failed, so back out partially rebuilt table. */ idalloc(ckh->tab); ckh->tab = tab; ckh->lg_curbuckets = lg_prevbuckets; } ret = false; label_return: return (ret); } static void ckh_shrink(ckh_t *ckh) { ckhc_t *tab, *ttab; size_t lg_curcells, usize; unsigned lg_prevbuckets; /* * It is possible (though unlikely, given well behaved hashes) that the * table rebuild will fail. */ lg_prevbuckets = ckh->lg_curbuckets; lg_curcells = ckh->lg_curbuckets + LG_CKH_BUCKET_CELLS - 1; usize = sa2u(sizeof(ckhc_t) << lg_curcells, CACHELINE); if (usize == 0) return; tab = (ckhc_t *)ipalloc(usize, CACHELINE, true); if (tab == NULL) { /* * An OOM error isn't worth propagating, since it doesn't * prevent this or future operations from proceeding. */ return; } /* Swap in new table. */ ttab = ckh->tab; ckh->tab = tab; tab = ttab; ckh->lg_curbuckets = lg_curcells - LG_CKH_BUCKET_CELLS; if (ckh_rebuild(ckh, tab) == false) { idalloc(tab); #ifdef CKH_COUNT ckh->nshrinks++; #endif return; } /* Rebuilding failed, so back out partially rebuilt table. */ idalloc(ckh->tab); ckh->tab = tab; ckh->lg_curbuckets = lg_prevbuckets; #ifdef CKH_COUNT ckh->nshrinkfails++; #endif } bool ckh_new(ckh_t *ckh, size_t minitems, ckh_hash_t *hash, ckh_keycomp_t *keycomp) { bool ret; size_t mincells, usize; unsigned lg_mincells; assert(minitems > 0); assert(hash != NULL); assert(keycomp != NULL); #ifdef CKH_COUNT ckh->ngrows = 0; ckh->nshrinks = 0; ckh->nshrinkfails = 0; ckh->ninserts = 0; ckh->nrelocs = 0; #endif ckh->prng_state = 42; /* Value doesn't really matter. */ ckh->count = 0; /* * Find the minimum power of 2 that is large enough to fit aBaseCount * entries. We are using (2+,2) cuckoo hashing, which has an expected * maximum load factor of at least ~0.86, so 0.75 is a conservative load * factor that will typically allow 2^aLgMinItems to fit without ever * growing the table. */ assert(LG_CKH_BUCKET_CELLS > 0); mincells = ((minitems + (3 - (minitems % 3))) / 3) << 2; for (lg_mincells = LG_CKH_BUCKET_CELLS; (ZU(1) << lg_mincells) < mincells; lg_mincells++) ; /* Do nothing. */ ckh->lg_minbuckets = lg_mincells - LG_CKH_BUCKET_CELLS; ckh->lg_curbuckets = lg_mincells - LG_CKH_BUCKET_CELLS; ckh->hash = hash; ckh->keycomp = keycomp; usize = sa2u(sizeof(ckhc_t) << lg_mincells, CACHELINE); if (usize == 0) { ret = true; goto label_return; } ckh->tab = (ckhc_t *)ipalloc(usize, CACHELINE, true); if (ckh->tab == NULL) { ret = true; goto label_return; } ret = false; label_return: return (ret); } void ckh_delete(ckh_t *ckh) { assert(ckh != NULL); #ifdef CKH_VERBOSE malloc_printf( "%s(%p): ngrows: %"PRIu64", nshrinks: %"PRIu64"," " nshrinkfails: %"PRIu64", ninserts: %"PRIu64"," " nrelocs: %"PRIu64"\n", __func__, ckh, (unsigned long long)ckh->ngrows, (unsigned long long)ckh->nshrinks, (unsigned long long)ckh->nshrinkfails, (unsigned long long)ckh->ninserts, (unsigned long long)ckh->nrelocs); #endif idalloc(ckh->tab); #ifdef JEMALLOC_DEBUG memset(ckh, 0x5a, sizeof(ckh_t)); #endif } size_t ckh_count(ckh_t *ckh) { assert(ckh != NULL); return (ckh->count); } bool ckh_iter(ckh_t *ckh, size_t *tabind, void **key, void **data) { size_t i, ncells; for (i = *tabind, ncells = (ZU(1) << (ckh->lg_curbuckets + LG_CKH_BUCKET_CELLS)); i < ncells; i++) { if (ckh->tab[i].key != NULL) { if (key != NULL) *key = (void *)ckh->tab[i].key; if (data != NULL) *data = (void *)ckh->tab[i].data; *tabind = i + 1; return (false); } } return (true); } bool ckh_insert(ckh_t *ckh, const void *key, const void *data) { bool ret; assert(ckh != NULL); assert(ckh_search(ckh, key, NULL, NULL)); #ifdef CKH_COUNT ckh->ninserts++; #endif while (ckh_try_insert(ckh, &key, &data)) { if (ckh_grow(ckh)) { ret = true; goto label_return; } } ret = false; label_return: return (ret); } bool ckh_remove(ckh_t *ckh, const void *searchkey, void **key, void **data) { size_t cell; assert(ckh != NULL); cell = ckh_isearch(ckh, searchkey); if (cell != SIZE_T_MAX) { if (key != NULL) *key = (void *)ckh->tab[cell].key; if (data != NULL) *data = (void *)ckh->tab[cell].data; ckh->tab[cell].key = NULL; ckh->tab[cell].data = NULL; /* Not necessary. */ ckh->count--; /* Try to halve the table if it is less than 1/4 full. */ if (ckh->count < (ZU(1) << (ckh->lg_curbuckets + LG_CKH_BUCKET_CELLS - 2)) && ckh->lg_curbuckets > ckh->lg_minbuckets) { /* Ignore error due to OOM. */ ckh_shrink(ckh); } return (false); } return (true); } bool ckh_search(ckh_t *ckh, const void *searchkey, void **key, void **data) { size_t cell; assert(ckh != NULL); cell = ckh_isearch(ckh, searchkey); if (cell != SIZE_T_MAX) { if (key != NULL) *key = (void *)ckh->tab[cell].key; if (data != NULL) *data = (void *)ckh->tab[cell].data; return (false); } return (true); } void ckh_string_hash(const void *key, unsigned minbits, size_t *hash1, size_t *hash2) { size_t ret1, ret2; uint64_t h; assert(minbits <= 32 || (SIZEOF_PTR == 8 && minbits <= 64)); assert(hash1 != NULL); assert(hash2 != NULL); h = hash(key, strlen((const char *)key), UINT64_C(0x94122f335b332aea)); if (minbits <= 32) { /* * Avoid doing multiple hashes, since a single hash provides * enough bits. */ ret1 = h & ZU(0xffffffffU); ret2 = h >> 32; } else { ret1 = h; ret2 = hash(key, strlen((const char *)key), UINT64_C(0x8432a476666bbc13)); } *hash1 = ret1; *hash2 = ret2; } bool ckh_string_keycomp(const void *k1, const void *k2) { assert(k1 != NULL); assert(k2 != NULL); return (strcmp((char *)k1, (char *)k2) ? false : true); } void ckh_pointer_hash(const void *key, unsigned minbits, size_t *hash1, size_t *hash2) { size_t ret1, ret2; uint64_t h; union { const void *v; uint64_t i; } u; assert(minbits <= 32 || (SIZEOF_PTR == 8 && minbits <= 64)); assert(hash1 != NULL); assert(hash2 != NULL); assert(sizeof(u.v) == sizeof(u.i)); #if (LG_SIZEOF_PTR != LG_SIZEOF_INT) u.i = 0; #endif u.v = key; h = hash(&u.i, sizeof(u.i), UINT64_C(0xd983396e68886082)); if (minbits <= 32) { /* * Avoid doing multiple hashes, since a single hash provides * enough bits. */ ret1 = h & ZU(0xffffffffU); ret2 = h >> 32; } else { assert(SIZEOF_PTR == 8); ret1 = h; ret2 = hash(&u.i, sizeof(u.i), UINT64_C(0x5e2be9aff8709a5d)); } *hash1 = ret1; *hash2 = ret2; } bool ckh_pointer_keycomp(const void *k1, const void *k2) { return ((k1 == k2) ? true : false); } redis-2.6.16/deps/jemalloc/src/ctl.c000066400000000000000000001325351220734223100171570ustar00rootroot00000000000000#define JEMALLOC_CTL_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Data. */ /* * ctl_mtx protects the following: * - ctl_stats.* * - opt_prof_active */ static malloc_mutex_t ctl_mtx; static bool ctl_initialized; static uint64_t ctl_epoch; static ctl_stats_t ctl_stats; /******************************************************************************/ /* Helpers for named and indexed nodes. */ static inline const ctl_named_node_t * ctl_named_node(const ctl_node_t *node) { return ((node->named) ? (const ctl_named_node_t *)node : NULL); } static inline const ctl_named_node_t * ctl_named_children(const ctl_named_node_t *node, int index) { const ctl_named_node_t *children = ctl_named_node(node->children); return (children ? &children[index] : NULL); } static inline const ctl_indexed_node_t * ctl_indexed_node(const ctl_node_t *node) { return ((node->named == false) ? (const ctl_indexed_node_t *)node : NULL); } /******************************************************************************/ /* Function prototypes for non-inline static functions. */ #define CTL_PROTO(n) \ static int n##_ctl(const size_t *mib, size_t miblen, void *oldp, \ size_t *oldlenp, void *newp, size_t newlen); #define INDEX_PROTO(n) \ static const ctl_named_node_t *n##_index(const size_t *mib, \ size_t miblen, size_t i); static bool ctl_arena_init(ctl_arena_stats_t *astats); static void ctl_arena_clear(ctl_arena_stats_t *astats); static void ctl_arena_stats_amerge(ctl_arena_stats_t *cstats, arena_t *arena); static void ctl_arena_stats_smerge(ctl_arena_stats_t *sstats, ctl_arena_stats_t *astats); static void ctl_arena_refresh(arena_t *arena, unsigned i); static bool ctl_grow(void); static void ctl_refresh(void); static bool ctl_init(void); static int ctl_lookup(const char *name, ctl_node_t const **nodesp, size_t *mibp, size_t *depthp); CTL_PROTO(version) CTL_PROTO(epoch) CTL_PROTO(thread_tcache_enabled) CTL_PROTO(thread_tcache_flush) CTL_PROTO(thread_arena) CTL_PROTO(thread_allocated) CTL_PROTO(thread_allocatedp) CTL_PROTO(thread_deallocated) CTL_PROTO(thread_deallocatedp) CTL_PROTO(config_debug) CTL_PROTO(config_dss) CTL_PROTO(config_fill) CTL_PROTO(config_lazy_lock) CTL_PROTO(config_mremap) CTL_PROTO(config_munmap) CTL_PROTO(config_prof) CTL_PROTO(config_prof_libgcc) CTL_PROTO(config_prof_libunwind) CTL_PROTO(config_stats) CTL_PROTO(config_tcache) CTL_PROTO(config_tls) CTL_PROTO(config_utrace) CTL_PROTO(config_valgrind) CTL_PROTO(config_xmalloc) CTL_PROTO(opt_abort) CTL_PROTO(opt_dss) CTL_PROTO(opt_lg_chunk) CTL_PROTO(opt_narenas) CTL_PROTO(opt_lg_dirty_mult) CTL_PROTO(opt_stats_print) CTL_PROTO(opt_junk) CTL_PROTO(opt_zero) CTL_PROTO(opt_quarantine) CTL_PROTO(opt_redzone) CTL_PROTO(opt_utrace) CTL_PROTO(opt_valgrind) CTL_PROTO(opt_xmalloc) CTL_PROTO(opt_tcache) CTL_PROTO(opt_lg_tcache_max) CTL_PROTO(opt_prof) CTL_PROTO(opt_prof_prefix) CTL_PROTO(opt_prof_active) CTL_PROTO(opt_lg_prof_sample) CTL_PROTO(opt_lg_prof_interval) CTL_PROTO(opt_prof_gdump) CTL_PROTO(opt_prof_final) CTL_PROTO(opt_prof_leak) CTL_PROTO(opt_prof_accum) CTL_PROTO(arena_i_purge) static void arena_purge(unsigned arena_ind); CTL_PROTO(arena_i_dss) INDEX_PROTO(arena_i) CTL_PROTO(arenas_bin_i_size) CTL_PROTO(arenas_bin_i_nregs) CTL_PROTO(arenas_bin_i_run_size) INDEX_PROTO(arenas_bin_i) CTL_PROTO(arenas_lrun_i_size) INDEX_PROTO(arenas_lrun_i) CTL_PROTO(arenas_narenas) CTL_PROTO(arenas_initialized) CTL_PROTO(arenas_quantum) CTL_PROTO(arenas_page) CTL_PROTO(arenas_tcache_max) CTL_PROTO(arenas_nbins) CTL_PROTO(arenas_nhbins) CTL_PROTO(arenas_nlruns) CTL_PROTO(arenas_purge) CTL_PROTO(arenas_extend) CTL_PROTO(prof_active) CTL_PROTO(prof_dump) CTL_PROTO(prof_interval) CTL_PROTO(stats_chunks_current) CTL_PROTO(stats_chunks_total) CTL_PROTO(stats_chunks_high) CTL_PROTO(stats_huge_allocated) CTL_PROTO(stats_huge_nmalloc) CTL_PROTO(stats_huge_ndalloc) CTL_PROTO(stats_arenas_i_small_allocated) CTL_PROTO(stats_arenas_i_small_nmalloc) CTL_PROTO(stats_arenas_i_small_ndalloc) CTL_PROTO(stats_arenas_i_small_nrequests) CTL_PROTO(stats_arenas_i_large_allocated) CTL_PROTO(stats_arenas_i_large_nmalloc) CTL_PROTO(stats_arenas_i_large_ndalloc) CTL_PROTO(stats_arenas_i_large_nrequests) CTL_PROTO(stats_arenas_i_bins_j_allocated) CTL_PROTO(stats_arenas_i_bins_j_nmalloc) CTL_PROTO(stats_arenas_i_bins_j_ndalloc) CTL_PROTO(stats_arenas_i_bins_j_nrequests) CTL_PROTO(stats_arenas_i_bins_j_nfills) CTL_PROTO(stats_arenas_i_bins_j_nflushes) CTL_PROTO(stats_arenas_i_bins_j_nruns) CTL_PROTO(stats_arenas_i_bins_j_nreruns) CTL_PROTO(stats_arenas_i_bins_j_curruns) INDEX_PROTO(stats_arenas_i_bins_j) CTL_PROTO(stats_arenas_i_lruns_j_nmalloc) CTL_PROTO(stats_arenas_i_lruns_j_ndalloc) CTL_PROTO(stats_arenas_i_lruns_j_nrequests) CTL_PROTO(stats_arenas_i_lruns_j_curruns) INDEX_PROTO(stats_arenas_i_lruns_j) CTL_PROTO(stats_arenas_i_nthreads) CTL_PROTO(stats_arenas_i_dss) CTL_PROTO(stats_arenas_i_pactive) CTL_PROTO(stats_arenas_i_pdirty) CTL_PROTO(stats_arenas_i_mapped) CTL_PROTO(stats_arenas_i_npurge) CTL_PROTO(stats_arenas_i_nmadvise) CTL_PROTO(stats_arenas_i_purged) INDEX_PROTO(stats_arenas_i) CTL_PROTO(stats_cactive) CTL_PROTO(stats_allocated) CTL_PROTO(stats_active) CTL_PROTO(stats_mapped) /******************************************************************************/ /* mallctl tree. */ /* Maximum tree depth. */ #define CTL_MAX_DEPTH 6 #define NAME(n) {true}, n #define CHILD(t, c) \ sizeof(c##_node) / sizeof(ctl_##t##_node_t), \ (ctl_node_t *)c##_node, \ NULL #define CTL(c) 0, NULL, c##_ctl /* * Only handles internal indexed nodes, since there are currently no external * ones. */ #define INDEX(i) {false}, i##_index static const ctl_named_node_t tcache_node[] = { {NAME("enabled"), CTL(thread_tcache_enabled)}, {NAME("flush"), CTL(thread_tcache_flush)} }; static const ctl_named_node_t thread_node[] = { {NAME("arena"), CTL(thread_arena)}, {NAME("allocated"), CTL(thread_allocated)}, {NAME("allocatedp"), CTL(thread_allocatedp)}, {NAME("deallocated"), CTL(thread_deallocated)}, {NAME("deallocatedp"), CTL(thread_deallocatedp)}, {NAME("tcache"), CHILD(named, tcache)} }; static const ctl_named_node_t config_node[] = { {NAME("debug"), CTL(config_debug)}, {NAME("dss"), CTL(config_dss)}, {NAME("fill"), CTL(config_fill)}, {NAME("lazy_lock"), CTL(config_lazy_lock)}, {NAME("mremap"), CTL(config_mremap)}, {NAME("munmap"), CTL(config_munmap)}, {NAME("prof"), CTL(config_prof)}, {NAME("prof_libgcc"), CTL(config_prof_libgcc)}, {NAME("prof_libunwind"), CTL(config_prof_libunwind)}, {NAME("stats"), CTL(config_stats)}, {NAME("tcache"), CTL(config_tcache)}, {NAME("tls"), CTL(config_tls)}, {NAME("utrace"), CTL(config_utrace)}, {NAME("valgrind"), CTL(config_valgrind)}, {NAME("xmalloc"), CTL(config_xmalloc)} }; static const ctl_named_node_t opt_node[] = { {NAME("abort"), CTL(opt_abort)}, {NAME("dss"), CTL(opt_dss)}, {NAME("lg_chunk"), CTL(opt_lg_chunk)}, {NAME("narenas"), CTL(opt_narenas)}, {NAME("lg_dirty_mult"), CTL(opt_lg_dirty_mult)}, {NAME("stats_print"), CTL(opt_stats_print)}, {NAME("junk"), CTL(opt_junk)}, {NAME("zero"), CTL(opt_zero)}, {NAME("quarantine"), CTL(opt_quarantine)}, {NAME("redzone"), CTL(opt_redzone)}, {NAME("utrace"), CTL(opt_utrace)}, {NAME("valgrind"), CTL(opt_valgrind)}, {NAME("xmalloc"), CTL(opt_xmalloc)}, {NAME("tcache"), CTL(opt_tcache)}, {NAME("lg_tcache_max"), CTL(opt_lg_tcache_max)}, {NAME("prof"), CTL(opt_prof)}, {NAME("prof_prefix"), CTL(opt_prof_prefix)}, {NAME("prof_active"), CTL(opt_prof_active)}, {NAME("lg_prof_sample"), CTL(opt_lg_prof_sample)}, {NAME("lg_prof_interval"), CTL(opt_lg_prof_interval)}, {NAME("prof_gdump"), CTL(opt_prof_gdump)}, {NAME("prof_final"), CTL(opt_prof_final)}, {NAME("prof_leak"), CTL(opt_prof_leak)}, {NAME("prof_accum"), CTL(opt_prof_accum)} }; static const ctl_named_node_t arena_i_node[] = { {NAME("purge"), CTL(arena_i_purge)}, {NAME("dss"), CTL(arena_i_dss)} }; static const ctl_named_node_t super_arena_i_node[] = { {NAME(""), CHILD(named, arena_i)} }; static const ctl_indexed_node_t arena_node[] = { {INDEX(arena_i)} }; static const ctl_named_node_t arenas_bin_i_node[] = { {NAME("size"), CTL(arenas_bin_i_size)}, {NAME("nregs"), CTL(arenas_bin_i_nregs)}, {NAME("run_size"), CTL(arenas_bin_i_run_size)} }; static const ctl_named_node_t super_arenas_bin_i_node[] = { {NAME(""), CHILD(named, arenas_bin_i)} }; static const ctl_indexed_node_t arenas_bin_node[] = { {INDEX(arenas_bin_i)} }; static const ctl_named_node_t arenas_lrun_i_node[] = { {NAME("size"), CTL(arenas_lrun_i_size)} }; static const ctl_named_node_t super_arenas_lrun_i_node[] = { {NAME(""), CHILD(named, arenas_lrun_i)} }; static const ctl_indexed_node_t arenas_lrun_node[] = { {INDEX(arenas_lrun_i)} }; static const ctl_named_node_t arenas_node[] = { {NAME("narenas"), CTL(arenas_narenas)}, {NAME("initialized"), CTL(arenas_initialized)}, {NAME("quantum"), CTL(arenas_quantum)}, {NAME("page"), CTL(arenas_page)}, {NAME("tcache_max"), CTL(arenas_tcache_max)}, {NAME("nbins"), CTL(arenas_nbins)}, {NAME("nhbins"), CTL(arenas_nhbins)}, {NAME("bin"), CHILD(indexed, arenas_bin)}, {NAME("nlruns"), CTL(arenas_nlruns)}, {NAME("lrun"), CHILD(indexed, arenas_lrun)}, {NAME("purge"), CTL(arenas_purge)}, {NAME("extend"), CTL(arenas_extend)} }; static const ctl_named_node_t prof_node[] = { {NAME("active"), CTL(prof_active)}, {NAME("dump"), CTL(prof_dump)}, {NAME("interval"), CTL(prof_interval)} }; static const ctl_named_node_t stats_chunks_node[] = { {NAME("current"), CTL(stats_chunks_current)}, {NAME("total"), CTL(stats_chunks_total)}, {NAME("high"), CTL(stats_chunks_high)} }; static const ctl_named_node_t stats_huge_node[] = { {NAME("allocated"), CTL(stats_huge_allocated)}, {NAME("nmalloc"), CTL(stats_huge_nmalloc)}, {NAME("ndalloc"), CTL(stats_huge_ndalloc)} }; static const ctl_named_node_t stats_arenas_i_small_node[] = { {NAME("allocated"), CTL(stats_arenas_i_small_allocated)}, {NAME("nmalloc"), CTL(stats_arenas_i_small_nmalloc)}, {NAME("ndalloc"), CTL(stats_arenas_i_small_ndalloc)}, {NAME("nrequests"), CTL(stats_arenas_i_small_nrequests)} }; static const ctl_named_node_t stats_arenas_i_large_node[] = { {NAME("allocated"), CTL(stats_arenas_i_large_allocated)}, {NAME("nmalloc"), CTL(stats_arenas_i_large_nmalloc)}, {NAME("ndalloc"), CTL(stats_arenas_i_large_ndalloc)}, {NAME("nrequests"), CTL(stats_arenas_i_large_nrequests)} }; static const ctl_named_node_t stats_arenas_i_bins_j_node[] = { {NAME("allocated"), CTL(stats_arenas_i_bins_j_allocated)}, {NAME("nmalloc"), CTL(stats_arenas_i_bins_j_nmalloc)}, {NAME("ndalloc"), CTL(stats_arenas_i_bins_j_ndalloc)}, {NAME("nrequests"), CTL(stats_arenas_i_bins_j_nrequests)}, {NAME("nfills"), CTL(stats_arenas_i_bins_j_nfills)}, {NAME("nflushes"), CTL(stats_arenas_i_bins_j_nflushes)}, {NAME("nruns"), CTL(stats_arenas_i_bins_j_nruns)}, {NAME("nreruns"), CTL(stats_arenas_i_bins_j_nreruns)}, {NAME("curruns"), CTL(stats_arenas_i_bins_j_curruns)} }; static const ctl_named_node_t super_stats_arenas_i_bins_j_node[] = { {NAME(""), CHILD(named, stats_arenas_i_bins_j)} }; static const ctl_indexed_node_t stats_arenas_i_bins_node[] = { {INDEX(stats_arenas_i_bins_j)} }; static const ctl_named_node_t stats_arenas_i_lruns_j_node[] = { {NAME("nmalloc"), CTL(stats_arenas_i_lruns_j_nmalloc)}, {NAME("ndalloc"), CTL(stats_arenas_i_lruns_j_ndalloc)}, {NAME("nrequests"), CTL(stats_arenas_i_lruns_j_nrequests)}, {NAME("curruns"), CTL(stats_arenas_i_lruns_j_curruns)} }; static const ctl_named_node_t super_stats_arenas_i_lruns_j_node[] = { {NAME(""), CHILD(named, stats_arenas_i_lruns_j)} }; static const ctl_indexed_node_t stats_arenas_i_lruns_node[] = { {INDEX(stats_arenas_i_lruns_j)} }; static const ctl_named_node_t stats_arenas_i_node[] = { {NAME("nthreads"), CTL(stats_arenas_i_nthreads)}, {NAME("dss"), CTL(stats_arenas_i_dss)}, {NAME("pactive"), CTL(stats_arenas_i_pactive)}, {NAME("pdirty"), CTL(stats_arenas_i_pdirty)}, {NAME("mapped"), CTL(stats_arenas_i_mapped)}, {NAME("npurge"), CTL(stats_arenas_i_npurge)}, {NAME("nmadvise"), CTL(stats_arenas_i_nmadvise)}, {NAME("purged"), CTL(stats_arenas_i_purged)}, {NAME("small"), CHILD(named, stats_arenas_i_small)}, {NAME("large"), CHILD(named, stats_arenas_i_large)}, {NAME("bins"), CHILD(indexed, stats_arenas_i_bins)}, {NAME("lruns"), CHILD(indexed, stats_arenas_i_lruns)} }; static const ctl_named_node_t super_stats_arenas_i_node[] = { {NAME(""), CHILD(named, stats_arenas_i)} }; static const ctl_indexed_node_t stats_arenas_node[] = { {INDEX(stats_arenas_i)} }; static const ctl_named_node_t stats_node[] = { {NAME("cactive"), CTL(stats_cactive)}, {NAME("allocated"), CTL(stats_allocated)}, {NAME("active"), CTL(stats_active)}, {NAME("mapped"), CTL(stats_mapped)}, {NAME("chunks"), CHILD(named, stats_chunks)}, {NAME("huge"), CHILD(named, stats_huge)}, {NAME("arenas"), CHILD(indexed, stats_arenas)} }; static const ctl_named_node_t root_node[] = { {NAME("version"), CTL(version)}, {NAME("epoch"), CTL(epoch)}, {NAME("thread"), CHILD(named, thread)}, {NAME("config"), CHILD(named, config)}, {NAME("opt"), CHILD(named, opt)}, {NAME("arena"), CHILD(indexed, arena)}, {NAME("arenas"), CHILD(named, arenas)}, {NAME("prof"), CHILD(named, prof)}, {NAME("stats"), CHILD(named, stats)} }; static const ctl_named_node_t super_root_node[] = { {NAME(""), CHILD(named, root)} }; #undef NAME #undef CHILD #undef CTL #undef INDEX /******************************************************************************/ static bool ctl_arena_init(ctl_arena_stats_t *astats) { if (astats->lstats == NULL) { astats->lstats = (malloc_large_stats_t *)base_alloc(nlclasses * sizeof(malloc_large_stats_t)); if (astats->lstats == NULL) return (true); } return (false); } static void ctl_arena_clear(ctl_arena_stats_t *astats) { astats->dss = dss_prec_names[dss_prec_limit]; astats->pactive = 0; astats->pdirty = 0; if (config_stats) { memset(&astats->astats, 0, sizeof(arena_stats_t)); astats->allocated_small = 0; astats->nmalloc_small = 0; astats->ndalloc_small = 0; astats->nrequests_small = 0; memset(astats->bstats, 0, NBINS * sizeof(malloc_bin_stats_t)); memset(astats->lstats, 0, nlclasses * sizeof(malloc_large_stats_t)); } } static void ctl_arena_stats_amerge(ctl_arena_stats_t *cstats, arena_t *arena) { unsigned i; arena_stats_merge(arena, &cstats->dss, &cstats->pactive, &cstats->pdirty, &cstats->astats, cstats->bstats, cstats->lstats); for (i = 0; i < NBINS; i++) { cstats->allocated_small += cstats->bstats[i].allocated; cstats->nmalloc_small += cstats->bstats[i].nmalloc; cstats->ndalloc_small += cstats->bstats[i].ndalloc; cstats->nrequests_small += cstats->bstats[i].nrequests; } } static void ctl_arena_stats_smerge(ctl_arena_stats_t *sstats, ctl_arena_stats_t *astats) { unsigned i; sstats->pactive += astats->pactive; sstats->pdirty += astats->pdirty; sstats->astats.mapped += astats->astats.mapped; sstats->astats.npurge += astats->astats.npurge; sstats->astats.nmadvise += astats->astats.nmadvise; sstats->astats.purged += astats->astats.purged; sstats->allocated_small += astats->allocated_small; sstats->nmalloc_small += astats->nmalloc_small; sstats->ndalloc_small += astats->ndalloc_small; sstats->nrequests_small += astats->nrequests_small; sstats->astats.allocated_large += astats->astats.allocated_large; sstats->astats.nmalloc_large += astats->astats.nmalloc_large; sstats->astats.ndalloc_large += astats->astats.ndalloc_large; sstats->astats.nrequests_large += astats->astats.nrequests_large; for (i = 0; i < nlclasses; i++) { sstats->lstats[i].nmalloc += astats->lstats[i].nmalloc; sstats->lstats[i].ndalloc += astats->lstats[i].ndalloc; sstats->lstats[i].nrequests += astats->lstats[i].nrequests; sstats->lstats[i].curruns += astats->lstats[i].curruns; } for (i = 0; i < NBINS; i++) { sstats->bstats[i].allocated += astats->bstats[i].allocated; sstats->bstats[i].nmalloc += astats->bstats[i].nmalloc; sstats->bstats[i].ndalloc += astats->bstats[i].ndalloc; sstats->bstats[i].nrequests += astats->bstats[i].nrequests; if (config_tcache) { sstats->bstats[i].nfills += astats->bstats[i].nfills; sstats->bstats[i].nflushes += astats->bstats[i].nflushes; } sstats->bstats[i].nruns += astats->bstats[i].nruns; sstats->bstats[i].reruns += astats->bstats[i].reruns; sstats->bstats[i].curruns += astats->bstats[i].curruns; } } static void ctl_arena_refresh(arena_t *arena, unsigned i) { ctl_arena_stats_t *astats = &ctl_stats.arenas[i]; ctl_arena_stats_t *sstats = &ctl_stats.arenas[ctl_stats.narenas]; ctl_arena_clear(astats); sstats->nthreads += astats->nthreads; if (config_stats) { ctl_arena_stats_amerge(astats, arena); /* Merge into sum stats as well. */ ctl_arena_stats_smerge(sstats, astats); } else { astats->pactive += arena->nactive; astats->pdirty += arena->ndirty; /* Merge into sum stats as well. */ sstats->pactive += arena->nactive; sstats->pdirty += arena->ndirty; } } static bool ctl_grow(void) { size_t astats_size; ctl_arena_stats_t *astats; arena_t **tarenas; /* Extend arena stats and arenas arrays. */ astats_size = (ctl_stats.narenas + 2) * sizeof(ctl_arena_stats_t); if (ctl_stats.narenas == narenas_auto) { /* ctl_stats.arenas and arenas came from base_alloc(). */ astats = (ctl_arena_stats_t *)imalloc(astats_size); if (astats == NULL) return (true); memcpy(astats, ctl_stats.arenas, (ctl_stats.narenas + 1) * sizeof(ctl_arena_stats_t)); tarenas = (arena_t **)imalloc((ctl_stats.narenas + 1) * sizeof(arena_t *)); if (tarenas == NULL) { idalloc(astats); return (true); } memcpy(tarenas, arenas, ctl_stats.narenas * sizeof(arena_t *)); } else { astats = (ctl_arena_stats_t *)iralloc(ctl_stats.arenas, astats_size, 0, 0, false, false); if (astats == NULL) return (true); tarenas = (arena_t **)iralloc(arenas, (ctl_stats.narenas + 1) * sizeof(arena_t *), 0, 0, false, false); if (tarenas == NULL) return (true); } /* Initialize the new astats and arenas elements. */ memset(&astats[ctl_stats.narenas + 1], 0, sizeof(ctl_arena_stats_t)); if (ctl_arena_init(&astats[ctl_stats.narenas + 1])) return (true); tarenas[ctl_stats.narenas] = NULL; /* Swap merged stats to their new location. */ { ctl_arena_stats_t tstats; memcpy(&tstats, &astats[ctl_stats.narenas], sizeof(ctl_arena_stats_t)); memcpy(&astats[ctl_stats.narenas], &astats[ctl_stats.narenas + 1], sizeof(ctl_arena_stats_t)); memcpy(&astats[ctl_stats.narenas + 1], &tstats, sizeof(ctl_arena_stats_t)); } ctl_stats.arenas = astats; ctl_stats.narenas++; malloc_mutex_lock(&arenas_lock); arenas = tarenas; narenas_total++; arenas_extend(narenas_total - 1); malloc_mutex_unlock(&arenas_lock); return (false); } static void ctl_refresh(void) { unsigned i; VARIABLE_ARRAY(arena_t *, tarenas, ctl_stats.narenas); if (config_stats) { malloc_mutex_lock(&chunks_mtx); ctl_stats.chunks.current = stats_chunks.curchunks; ctl_stats.chunks.total = stats_chunks.nchunks; ctl_stats.chunks.high = stats_chunks.highchunks; malloc_mutex_unlock(&chunks_mtx); malloc_mutex_lock(&huge_mtx); ctl_stats.huge.allocated = huge_allocated; ctl_stats.huge.nmalloc = huge_nmalloc; ctl_stats.huge.ndalloc = huge_ndalloc; malloc_mutex_unlock(&huge_mtx); } /* * Clear sum stats, since they will be merged into by * ctl_arena_refresh(). */ ctl_stats.arenas[ctl_stats.narenas].nthreads = 0; ctl_arena_clear(&ctl_stats.arenas[ctl_stats.narenas]); malloc_mutex_lock(&arenas_lock); memcpy(tarenas, arenas, sizeof(arena_t *) * ctl_stats.narenas); for (i = 0; i < ctl_stats.narenas; i++) { if (arenas[i] != NULL) ctl_stats.arenas[i].nthreads = arenas[i]->nthreads; else ctl_stats.arenas[i].nthreads = 0; } malloc_mutex_unlock(&arenas_lock); for (i = 0; i < ctl_stats.narenas; i++) { bool initialized = (tarenas[i] != NULL); ctl_stats.arenas[i].initialized = initialized; if (initialized) ctl_arena_refresh(tarenas[i], i); } if (config_stats) { ctl_stats.allocated = ctl_stats.arenas[ctl_stats.narenas].allocated_small + ctl_stats.arenas[ctl_stats.narenas].astats.allocated_large + ctl_stats.huge.allocated; ctl_stats.active = (ctl_stats.arenas[ctl_stats.narenas].pactive << LG_PAGE) + ctl_stats.huge.allocated; ctl_stats.mapped = (ctl_stats.chunks.current << opt_lg_chunk); } ctl_epoch++; } static bool ctl_init(void) { bool ret; malloc_mutex_lock(&ctl_mtx); if (ctl_initialized == false) { /* * Allocate space for one extra arena stats element, which * contains summed stats across all arenas. */ assert(narenas_auto == narenas_total_get()); ctl_stats.narenas = narenas_auto; ctl_stats.arenas = (ctl_arena_stats_t *)base_alloc( (ctl_stats.narenas + 1) * sizeof(ctl_arena_stats_t)); if (ctl_stats.arenas == NULL) { ret = true; goto label_return; } memset(ctl_stats.arenas, 0, (ctl_stats.narenas + 1) * sizeof(ctl_arena_stats_t)); /* * Initialize all stats structures, regardless of whether they * ever get used. Lazy initialization would allow errors to * cause inconsistent state to be viewable by the application. */ if (config_stats) { unsigned i; for (i = 0; i <= ctl_stats.narenas; i++) { if (ctl_arena_init(&ctl_stats.arenas[i])) { ret = true; goto label_return; } } } ctl_stats.arenas[ctl_stats.narenas].initialized = true; ctl_epoch = 0; ctl_refresh(); ctl_initialized = true; } ret = false; label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } static int ctl_lookup(const char *name, ctl_node_t const **nodesp, size_t *mibp, size_t *depthp) { int ret; const char *elm, *tdot, *dot; size_t elen, i, j; const ctl_named_node_t *node; elm = name; /* Equivalent to strchrnul(). */ dot = ((tdot = strchr(elm, '.')) != NULL) ? tdot : strchr(elm, '\0'); elen = (size_t)((uintptr_t)dot - (uintptr_t)elm); if (elen == 0) { ret = ENOENT; goto label_return; } node = super_root_node; for (i = 0; i < *depthp; i++) { assert(node); assert(node->nchildren > 0); if (ctl_named_node(node->children) != NULL) { const ctl_named_node_t *pnode = node; /* Children are named. */ for (j = 0; j < node->nchildren; j++) { const ctl_named_node_t *child = ctl_named_children(node, j); if (strlen(child->name) == elen && strncmp(elm, child->name, elen) == 0) { node = child; if (nodesp != NULL) nodesp[i] = (const ctl_node_t *)node; mibp[i] = j; break; } } if (node == pnode) { ret = ENOENT; goto label_return; } } else { uintmax_t index; const ctl_indexed_node_t *inode; /* Children are indexed. */ index = malloc_strtoumax(elm, NULL, 10); if (index == UINTMAX_MAX || index > SIZE_T_MAX) { ret = ENOENT; goto label_return; } inode = ctl_indexed_node(node->children); node = inode->index(mibp, *depthp, (size_t)index); if (node == NULL) { ret = ENOENT; goto label_return; } if (nodesp != NULL) nodesp[i] = (const ctl_node_t *)node; mibp[i] = (size_t)index; } if (node->ctl != NULL) { /* Terminal node. */ if (*dot != '\0') { /* * The name contains more elements than are * in this path through the tree. */ ret = ENOENT; goto label_return; } /* Complete lookup successful. */ *depthp = i + 1; break; } /* Update elm. */ if (*dot == '\0') { /* No more elements. */ ret = ENOENT; goto label_return; } elm = &dot[1]; dot = ((tdot = strchr(elm, '.')) != NULL) ? tdot : strchr(elm, '\0'); elen = (size_t)((uintptr_t)dot - (uintptr_t)elm); } ret = 0; label_return: return (ret); } int ctl_byname(const char *name, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; size_t depth; ctl_node_t const *nodes[CTL_MAX_DEPTH]; size_t mib[CTL_MAX_DEPTH]; const ctl_named_node_t *node; if (ctl_initialized == false && ctl_init()) { ret = EAGAIN; goto label_return; } depth = CTL_MAX_DEPTH; ret = ctl_lookup(name, nodes, mib, &depth); if (ret != 0) goto label_return; node = ctl_named_node(nodes[depth-1]); if (node != NULL && node->ctl) ret = node->ctl(mib, depth, oldp, oldlenp, newp, newlen); else { /* The name refers to a partial path through the ctl tree. */ ret = ENOENT; } label_return: return(ret); } int ctl_nametomib(const char *name, size_t *mibp, size_t *miblenp) { int ret; if (ctl_initialized == false && ctl_init()) { ret = EAGAIN; goto label_return; } ret = ctl_lookup(name, NULL, mibp, miblenp); label_return: return(ret); } int ctl_bymib(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; const ctl_named_node_t *node; size_t i; if (ctl_initialized == false && ctl_init()) { ret = EAGAIN; goto label_return; } /* Iterate down the tree. */ node = super_root_node; for (i = 0; i < miblen; i++) { assert(node); assert(node->nchildren > 0); if (ctl_named_node(node->children) != NULL) { /* Children are named. */ if (node->nchildren <= mib[i]) { ret = ENOENT; goto label_return; } node = ctl_named_children(node, mib[i]); } else { const ctl_indexed_node_t *inode; /* Indexed element. */ inode = ctl_indexed_node(node->children); node = inode->index(mib, miblen, mib[i]); if (node == NULL) { ret = ENOENT; goto label_return; } } } /* Call the ctl function. */ if (node && node->ctl) ret = node->ctl(mib, miblen, oldp, oldlenp, newp, newlen); else { /* Partial MIB. */ ret = ENOENT; } label_return: return(ret); } bool ctl_boot(void) { if (malloc_mutex_init(&ctl_mtx)) return (true); ctl_initialized = false; return (false); } void ctl_prefork(void) { malloc_mutex_lock(&ctl_mtx); } void ctl_postfork_parent(void) { malloc_mutex_postfork_parent(&ctl_mtx); } void ctl_postfork_child(void) { malloc_mutex_postfork_child(&ctl_mtx); } /******************************************************************************/ /* *_ctl() functions. */ #define READONLY() do { \ if (newp != NULL || newlen != 0) { \ ret = EPERM; \ goto label_return; \ } \ } while (0) #define WRITEONLY() do { \ if (oldp != NULL || oldlenp != NULL) { \ ret = EPERM; \ goto label_return; \ } \ } while (0) #define READ(v, t) do { \ if (oldp != NULL && oldlenp != NULL) { \ if (*oldlenp != sizeof(t)) { \ size_t copylen = (sizeof(t) <= *oldlenp) \ ? sizeof(t) : *oldlenp; \ memcpy(oldp, (void *)&v, copylen); \ ret = EINVAL; \ goto label_return; \ } else \ *(t *)oldp = v; \ } \ } while (0) #define WRITE(v, t) do { \ if (newp != NULL) { \ if (newlen != sizeof(t)) { \ ret = EINVAL; \ goto label_return; \ } \ v = *(t *)newp; \ } \ } while (0) /* * There's a lot of code duplication in the following macros due to limitations * in how nested cpp macros are expanded. */ #define CTL_RO_CLGEN(c, l, n, v, t) \ static int \ n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \ void *newp, size_t newlen) \ { \ int ret; \ t oldval; \ \ if ((c) == false) \ return (ENOENT); \ if (l) \ malloc_mutex_lock(&ctl_mtx); \ READONLY(); \ oldval = v; \ READ(oldval, t); \ \ ret = 0; \ label_return: \ if (l) \ malloc_mutex_unlock(&ctl_mtx); \ return (ret); \ } #define CTL_RO_CGEN(c, n, v, t) \ static int \ n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \ void *newp, size_t newlen) \ { \ int ret; \ t oldval; \ \ if ((c) == false) \ return (ENOENT); \ malloc_mutex_lock(&ctl_mtx); \ READONLY(); \ oldval = v; \ READ(oldval, t); \ \ ret = 0; \ label_return: \ malloc_mutex_unlock(&ctl_mtx); \ return (ret); \ } #define CTL_RO_GEN(n, v, t) \ static int \ n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \ void *newp, size_t newlen) \ { \ int ret; \ t oldval; \ \ malloc_mutex_lock(&ctl_mtx); \ READONLY(); \ oldval = v; \ READ(oldval, t); \ \ ret = 0; \ label_return: \ malloc_mutex_unlock(&ctl_mtx); \ return (ret); \ } /* * ctl_mtx is not acquired, under the assumption that no pertinent data will * mutate during the call. */ #define CTL_RO_NL_CGEN(c, n, v, t) \ static int \ n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \ void *newp, size_t newlen) \ { \ int ret; \ t oldval; \ \ if ((c) == false) \ return (ENOENT); \ READONLY(); \ oldval = v; \ READ(oldval, t); \ \ ret = 0; \ label_return: \ return (ret); \ } #define CTL_RO_NL_GEN(n, v, t) \ static int \ n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \ void *newp, size_t newlen) \ { \ int ret; \ t oldval; \ \ READONLY(); \ oldval = v; \ READ(oldval, t); \ \ ret = 0; \ label_return: \ return (ret); \ } #define CTL_RO_BOOL_CONFIG_GEN(n) \ static int \ n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \ void *newp, size_t newlen) \ { \ int ret; \ bool oldval; \ \ READONLY(); \ oldval = n; \ READ(oldval, bool); \ \ ret = 0; \ label_return: \ return (ret); \ } CTL_RO_NL_GEN(version, JEMALLOC_VERSION, const char *) static int epoch_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; uint64_t newval; malloc_mutex_lock(&ctl_mtx); WRITE(newval, uint64_t); if (newp != NULL) ctl_refresh(); READ(ctl_epoch, uint64_t); ret = 0; label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } static int thread_tcache_enabled_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; bool oldval; if (config_tcache == false) return (ENOENT); oldval = tcache_enabled_get(); if (newp != NULL) { if (newlen != sizeof(bool)) { ret = EINVAL; goto label_return; } tcache_enabled_set(*(bool *)newp); } READ(oldval, bool); ret = 0; label_return: return (ret); } static int thread_tcache_flush_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; if (config_tcache == false) return (ENOENT); READONLY(); WRITEONLY(); tcache_flush(); ret = 0; label_return: return (ret); } static int thread_arena_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; unsigned newind, oldind; malloc_mutex_lock(&ctl_mtx); newind = oldind = choose_arena(NULL)->ind; WRITE(newind, unsigned); READ(oldind, unsigned); if (newind != oldind) { arena_t *arena; if (newind >= ctl_stats.narenas) { /* New arena index is out of range. */ ret = EFAULT; goto label_return; } /* Initialize arena if necessary. */ malloc_mutex_lock(&arenas_lock); if ((arena = arenas[newind]) == NULL && (arena = arenas_extend(newind)) == NULL) { malloc_mutex_unlock(&arenas_lock); ret = EAGAIN; goto label_return; } assert(arena == arenas[newind]); arenas[oldind]->nthreads--; arenas[newind]->nthreads++; malloc_mutex_unlock(&arenas_lock); /* Set new arena association. */ if (config_tcache) { tcache_t *tcache; if ((uintptr_t)(tcache = *tcache_tsd_get()) > (uintptr_t)TCACHE_STATE_MAX) { tcache_arena_dissociate(tcache); tcache_arena_associate(tcache, arena); } } arenas_tsd_set(&arena); } ret = 0; label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } CTL_RO_NL_CGEN(config_stats, thread_allocated, thread_allocated_tsd_get()->allocated, uint64_t) CTL_RO_NL_CGEN(config_stats, thread_allocatedp, &thread_allocated_tsd_get()->allocated, uint64_t *) CTL_RO_NL_CGEN(config_stats, thread_deallocated, thread_allocated_tsd_get()->deallocated, uint64_t) CTL_RO_NL_CGEN(config_stats, thread_deallocatedp, &thread_allocated_tsd_get()->deallocated, uint64_t *) /******************************************************************************/ CTL_RO_BOOL_CONFIG_GEN(config_debug) CTL_RO_BOOL_CONFIG_GEN(config_dss) CTL_RO_BOOL_CONFIG_GEN(config_fill) CTL_RO_BOOL_CONFIG_GEN(config_lazy_lock) CTL_RO_BOOL_CONFIG_GEN(config_mremap) CTL_RO_BOOL_CONFIG_GEN(config_munmap) CTL_RO_BOOL_CONFIG_GEN(config_prof) CTL_RO_BOOL_CONFIG_GEN(config_prof_libgcc) CTL_RO_BOOL_CONFIG_GEN(config_prof_libunwind) CTL_RO_BOOL_CONFIG_GEN(config_stats) CTL_RO_BOOL_CONFIG_GEN(config_tcache) CTL_RO_BOOL_CONFIG_GEN(config_tls) CTL_RO_BOOL_CONFIG_GEN(config_utrace) CTL_RO_BOOL_CONFIG_GEN(config_valgrind) CTL_RO_BOOL_CONFIG_GEN(config_xmalloc) /******************************************************************************/ CTL_RO_NL_GEN(opt_abort, opt_abort, bool) CTL_RO_NL_GEN(opt_dss, opt_dss, const char *) CTL_RO_NL_GEN(opt_lg_chunk, opt_lg_chunk, size_t) CTL_RO_NL_GEN(opt_narenas, opt_narenas, size_t) CTL_RO_NL_GEN(opt_lg_dirty_mult, opt_lg_dirty_mult, ssize_t) CTL_RO_NL_GEN(opt_stats_print, opt_stats_print, bool) CTL_RO_NL_CGEN(config_fill, opt_junk, opt_junk, bool) CTL_RO_NL_CGEN(config_fill, opt_zero, opt_zero, bool) CTL_RO_NL_CGEN(config_fill, opt_quarantine, opt_quarantine, size_t) CTL_RO_NL_CGEN(config_fill, opt_redzone, opt_redzone, bool) CTL_RO_NL_CGEN(config_utrace, opt_utrace, opt_utrace, bool) CTL_RO_NL_CGEN(config_valgrind, opt_valgrind, opt_valgrind, bool) CTL_RO_NL_CGEN(config_xmalloc, opt_xmalloc, opt_xmalloc, bool) CTL_RO_NL_CGEN(config_tcache, opt_tcache, opt_tcache, bool) CTL_RO_NL_CGEN(config_tcache, opt_lg_tcache_max, opt_lg_tcache_max, ssize_t) CTL_RO_NL_CGEN(config_prof, opt_prof, opt_prof, bool) CTL_RO_NL_CGEN(config_prof, opt_prof_prefix, opt_prof_prefix, const char *) CTL_RO_CGEN(config_prof, opt_prof_active, opt_prof_active, bool) /* Mutable. */ CTL_RO_NL_CGEN(config_prof, opt_lg_prof_sample, opt_lg_prof_sample, size_t) CTL_RO_NL_CGEN(config_prof, opt_lg_prof_interval, opt_lg_prof_interval, ssize_t) CTL_RO_NL_CGEN(config_prof, opt_prof_gdump, opt_prof_gdump, bool) CTL_RO_NL_CGEN(config_prof, opt_prof_final, opt_prof_final, bool) CTL_RO_NL_CGEN(config_prof, opt_prof_leak, opt_prof_leak, bool) CTL_RO_NL_CGEN(config_prof, opt_prof_accum, opt_prof_accum, bool) /******************************************************************************/ /* ctl_mutex must be held during execution of this function. */ static void arena_purge(unsigned arena_ind) { VARIABLE_ARRAY(arena_t *, tarenas, ctl_stats.narenas); malloc_mutex_lock(&arenas_lock); memcpy(tarenas, arenas, sizeof(arena_t *) * ctl_stats.narenas); malloc_mutex_unlock(&arenas_lock); if (arena_ind == ctl_stats.narenas) { unsigned i; for (i = 0; i < ctl_stats.narenas; i++) { if (tarenas[i] != NULL) arena_purge_all(tarenas[i]); } } else { assert(arena_ind < ctl_stats.narenas); if (tarenas[arena_ind] != NULL) arena_purge_all(tarenas[arena_ind]); } } static int arena_i_purge_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; READONLY(); WRITEONLY(); malloc_mutex_lock(&ctl_mtx); arena_purge(mib[1]); malloc_mutex_unlock(&ctl_mtx); ret = 0; label_return: return (ret); } static int arena_i_dss_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret, i; bool match, err; const char *dss; unsigned arena_ind = mib[1]; dss_prec_t dss_prec_old = dss_prec_limit; dss_prec_t dss_prec = dss_prec_limit; malloc_mutex_lock(&ctl_mtx); WRITE(dss, const char *); match = false; for (i = 0; i < dss_prec_limit; i++) { if (strcmp(dss_prec_names[i], dss) == 0) { dss_prec = i; match = true; break; } } if (match == false) { ret = EINVAL; goto label_return; } if (arena_ind < ctl_stats.narenas) { arena_t *arena = arenas[arena_ind]; if (arena != NULL) { dss_prec_old = arena_dss_prec_get(arena); arena_dss_prec_set(arena, dss_prec); err = false; } else err = true; } else { dss_prec_old = chunk_dss_prec_get(); err = chunk_dss_prec_set(dss_prec); } dss = dss_prec_names[dss_prec_old]; READ(dss, const char *); if (err) { ret = EFAULT; goto label_return; } ret = 0; label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } static const ctl_named_node_t * arena_i_index(const size_t *mib, size_t miblen, size_t i) { const ctl_named_node_t * ret; malloc_mutex_lock(&ctl_mtx); if (i > ctl_stats.narenas) { ret = NULL; goto label_return; } ret = super_arena_i_node; label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } /******************************************************************************/ CTL_RO_NL_GEN(arenas_bin_i_size, arena_bin_info[mib[2]].reg_size, size_t) CTL_RO_NL_GEN(arenas_bin_i_nregs, arena_bin_info[mib[2]].nregs, uint32_t) CTL_RO_NL_GEN(arenas_bin_i_run_size, arena_bin_info[mib[2]].run_size, size_t) static const ctl_named_node_t * arenas_bin_i_index(const size_t *mib, size_t miblen, size_t i) { if (i > NBINS) return (NULL); return (super_arenas_bin_i_node); } CTL_RO_NL_GEN(arenas_lrun_i_size, ((mib[2]+1) << LG_PAGE), size_t) static const ctl_named_node_t * arenas_lrun_i_index(const size_t *mib, size_t miblen, size_t i) { if (i > nlclasses) return (NULL); return (super_arenas_lrun_i_node); } static int arenas_narenas_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; unsigned narenas; malloc_mutex_lock(&ctl_mtx); READONLY(); if (*oldlenp != sizeof(unsigned)) { ret = EINVAL; goto label_return; } narenas = ctl_stats.narenas; READ(narenas, unsigned); ret = 0; label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } static int arenas_initialized_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; unsigned nread, i; malloc_mutex_lock(&ctl_mtx); READONLY(); if (*oldlenp != ctl_stats.narenas * sizeof(bool)) { ret = EINVAL; nread = (*oldlenp < ctl_stats.narenas * sizeof(bool)) ? (*oldlenp / sizeof(bool)) : ctl_stats.narenas; } else { ret = 0; nread = ctl_stats.narenas; } for (i = 0; i < nread; i++) ((bool *)oldp)[i] = ctl_stats.arenas[i].initialized; label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } CTL_RO_NL_GEN(arenas_quantum, QUANTUM, size_t) CTL_RO_NL_GEN(arenas_page, PAGE, size_t) CTL_RO_NL_CGEN(config_tcache, arenas_tcache_max, tcache_maxclass, size_t) CTL_RO_NL_GEN(arenas_nbins, NBINS, unsigned) CTL_RO_NL_CGEN(config_tcache, arenas_nhbins, nhbins, unsigned) CTL_RO_NL_GEN(arenas_nlruns, nlclasses, size_t) static int arenas_purge_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; unsigned arena_ind; malloc_mutex_lock(&ctl_mtx); WRITEONLY(); arena_ind = UINT_MAX; WRITE(arena_ind, unsigned); if (newp != NULL && arena_ind >= ctl_stats.narenas) ret = EFAULT; else { if (arena_ind == UINT_MAX) arena_ind = ctl_stats.narenas; arena_purge(arena_ind); ret = 0; } label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } static int arenas_extend_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; malloc_mutex_lock(&ctl_mtx); READONLY(); if (ctl_grow()) { ret = EAGAIN; goto label_return; } READ(ctl_stats.narenas - 1, unsigned); ret = 0; label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } /******************************************************************************/ static int prof_active_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; bool oldval; if (config_prof == false) return (ENOENT); malloc_mutex_lock(&ctl_mtx); /* Protect opt_prof_active. */ oldval = opt_prof_active; if (newp != NULL) { /* * The memory barriers will tend to make opt_prof_active * propagate faster on systems with weak memory ordering. */ mb_write(); WRITE(opt_prof_active, bool); mb_write(); } READ(oldval, bool); ret = 0; label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } static int prof_dump_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { int ret; const char *filename = NULL; if (config_prof == false) return (ENOENT); WRITEONLY(); WRITE(filename, const char *); if (prof_mdump(filename)) { ret = EFAULT; goto label_return; } ret = 0; label_return: return (ret); } CTL_RO_NL_CGEN(config_prof, prof_interval, prof_interval, uint64_t) /******************************************************************************/ CTL_RO_CGEN(config_stats, stats_chunks_current, ctl_stats.chunks.current, size_t) CTL_RO_CGEN(config_stats, stats_chunks_total, ctl_stats.chunks.total, uint64_t) CTL_RO_CGEN(config_stats, stats_chunks_high, ctl_stats.chunks.high, size_t) CTL_RO_CGEN(config_stats, stats_huge_allocated, huge_allocated, size_t) CTL_RO_CGEN(config_stats, stats_huge_nmalloc, huge_nmalloc, uint64_t) CTL_RO_CGEN(config_stats, stats_huge_ndalloc, huge_ndalloc, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_small_allocated, ctl_stats.arenas[mib[2]].allocated_small, size_t) CTL_RO_CGEN(config_stats, stats_arenas_i_small_nmalloc, ctl_stats.arenas[mib[2]].nmalloc_small, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_small_ndalloc, ctl_stats.arenas[mib[2]].ndalloc_small, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_small_nrequests, ctl_stats.arenas[mib[2]].nrequests_small, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_large_allocated, ctl_stats.arenas[mib[2]].astats.allocated_large, size_t) CTL_RO_CGEN(config_stats, stats_arenas_i_large_nmalloc, ctl_stats.arenas[mib[2]].astats.nmalloc_large, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_large_ndalloc, ctl_stats.arenas[mib[2]].astats.ndalloc_large, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_large_nrequests, ctl_stats.arenas[mib[2]].astats.nrequests_large, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_allocated, ctl_stats.arenas[mib[2]].bstats[mib[4]].allocated, size_t) CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nmalloc, ctl_stats.arenas[mib[2]].bstats[mib[4]].nmalloc, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_ndalloc, ctl_stats.arenas[mib[2]].bstats[mib[4]].ndalloc, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nrequests, ctl_stats.arenas[mib[2]].bstats[mib[4]].nrequests, uint64_t) CTL_RO_CGEN(config_stats && config_tcache, stats_arenas_i_bins_j_nfills, ctl_stats.arenas[mib[2]].bstats[mib[4]].nfills, uint64_t) CTL_RO_CGEN(config_stats && config_tcache, stats_arenas_i_bins_j_nflushes, ctl_stats.arenas[mib[2]].bstats[mib[4]].nflushes, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nruns, ctl_stats.arenas[mib[2]].bstats[mib[4]].nruns, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nreruns, ctl_stats.arenas[mib[2]].bstats[mib[4]].reruns, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_curruns, ctl_stats.arenas[mib[2]].bstats[mib[4]].curruns, size_t) static const ctl_named_node_t * stats_arenas_i_bins_j_index(const size_t *mib, size_t miblen, size_t j) { if (j > NBINS) return (NULL); return (super_stats_arenas_i_bins_j_node); } CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_nmalloc, ctl_stats.arenas[mib[2]].lstats[mib[4]].nmalloc, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_ndalloc, ctl_stats.arenas[mib[2]].lstats[mib[4]].ndalloc, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_nrequests, ctl_stats.arenas[mib[2]].lstats[mib[4]].nrequests, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_curruns, ctl_stats.arenas[mib[2]].lstats[mib[4]].curruns, size_t) static const ctl_named_node_t * stats_arenas_i_lruns_j_index(const size_t *mib, size_t miblen, size_t j) { if (j > nlclasses) return (NULL); return (super_stats_arenas_i_lruns_j_node); } CTL_RO_GEN(stats_arenas_i_nthreads, ctl_stats.arenas[mib[2]].nthreads, unsigned) CTL_RO_GEN(stats_arenas_i_dss, ctl_stats.arenas[mib[2]].dss, const char *) CTL_RO_GEN(stats_arenas_i_pactive, ctl_stats.arenas[mib[2]].pactive, size_t) CTL_RO_GEN(stats_arenas_i_pdirty, ctl_stats.arenas[mib[2]].pdirty, size_t) CTL_RO_CGEN(config_stats, stats_arenas_i_mapped, ctl_stats.arenas[mib[2]].astats.mapped, size_t) CTL_RO_CGEN(config_stats, stats_arenas_i_npurge, ctl_stats.arenas[mib[2]].astats.npurge, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_nmadvise, ctl_stats.arenas[mib[2]].astats.nmadvise, uint64_t) CTL_RO_CGEN(config_stats, stats_arenas_i_purged, ctl_stats.arenas[mib[2]].astats.purged, uint64_t) static const ctl_named_node_t * stats_arenas_i_index(const size_t *mib, size_t miblen, size_t i) { const ctl_named_node_t * ret; malloc_mutex_lock(&ctl_mtx); if (i > ctl_stats.narenas || ctl_stats.arenas[i].initialized == false) { ret = NULL; goto label_return; } ret = super_stats_arenas_i_node; label_return: malloc_mutex_unlock(&ctl_mtx); return (ret); } CTL_RO_CGEN(config_stats, stats_cactive, &stats_cactive, size_t *) CTL_RO_CGEN(config_stats, stats_allocated, ctl_stats.allocated, size_t) CTL_RO_CGEN(config_stats, stats_active, ctl_stats.active, size_t) CTL_RO_CGEN(config_stats, stats_mapped, ctl_stats.mapped, size_t) redis-2.6.16/deps/jemalloc/src/extent.c000066400000000000000000000017151220734223100176770ustar00rootroot00000000000000#define JEMALLOC_EXTENT_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ static inline int extent_szad_comp(extent_node_t *a, extent_node_t *b) { int ret; size_t a_size = a->size; size_t b_size = b->size; ret = (a_size > b_size) - (a_size < b_size); if (ret == 0) { uintptr_t a_addr = (uintptr_t)a->addr; uintptr_t b_addr = (uintptr_t)b->addr; ret = (a_addr > b_addr) - (a_addr < b_addr); } return (ret); } /* Generate red-black tree functions. */ rb_gen(, extent_tree_szad_, extent_tree_t, extent_node_t, link_szad, extent_szad_comp) static inline int extent_ad_comp(extent_node_t *a, extent_node_t *b) { uintptr_t a_addr = (uintptr_t)a->addr; uintptr_t b_addr = (uintptr_t)b->addr; return ((a_addr > b_addr) - (a_addr < b_addr)); } /* Generate red-black tree functions. */ rb_gen(, extent_tree_ad_, extent_tree_t, extent_node_t, link_ad, extent_ad_comp) redis-2.6.16/deps/jemalloc/src/hash.c000066400000000000000000000001121220734223100173010ustar00rootroot00000000000000#define JEMALLOC_HASH_C_ #include "jemalloc/internal/jemalloc_internal.h" redis-2.6.16/deps/jemalloc/src/huge.c000066400000000000000000000151541220734223100173220ustar00rootroot00000000000000#define JEMALLOC_HUGE_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Data. */ uint64_t huge_nmalloc; uint64_t huge_ndalloc; size_t huge_allocated; malloc_mutex_t huge_mtx; /******************************************************************************/ /* Tree of chunks that are stand-alone huge allocations. */ static extent_tree_t huge; void * huge_malloc(size_t size, bool zero) { return (huge_palloc(size, chunksize, zero)); } void * huge_palloc(size_t size, size_t alignment, bool zero) { void *ret; size_t csize; extent_node_t *node; bool is_zeroed; /* Allocate one or more contiguous chunks for this request. */ csize = CHUNK_CEILING(size); if (csize == 0) { /* size is large enough to cause size_t wrap-around. */ return (NULL); } /* Allocate an extent node with which to track the chunk. */ node = base_node_alloc(); if (node == NULL) return (NULL); /* * Copy zero into is_zeroed and pass the copy to chunk_alloc(), so that * it is possible to make correct junk/zero fill decisions below. */ is_zeroed = zero; ret = chunk_alloc(csize, alignment, false, &is_zeroed, chunk_dss_prec_get()); if (ret == NULL) { base_node_dealloc(node); return (NULL); } /* Insert node into huge. */ node->addr = ret; node->size = csize; malloc_mutex_lock(&huge_mtx); extent_tree_ad_insert(&huge, node); if (config_stats) { stats_cactive_add(csize); huge_nmalloc++; huge_allocated += csize; } malloc_mutex_unlock(&huge_mtx); if (config_fill && zero == false) { if (opt_junk) memset(ret, 0xa5, csize); else if (opt_zero && is_zeroed == false) memset(ret, 0, csize); } return (ret); } void * huge_ralloc_no_move(void *ptr, size_t oldsize, size_t size, size_t extra) { /* * Avoid moving the allocation if the size class can be left the same. */ if (oldsize > arena_maxclass && CHUNK_CEILING(oldsize) >= CHUNK_CEILING(size) && CHUNK_CEILING(oldsize) <= CHUNK_CEILING(size+extra)) { assert(CHUNK_CEILING(oldsize) == oldsize); if (config_fill && opt_junk && size < oldsize) { memset((void *)((uintptr_t)ptr + size), 0x5a, oldsize - size); } return (ptr); } /* Reallocation would require a move. */ return (NULL); } void * huge_ralloc(void *ptr, size_t oldsize, size_t size, size_t extra, size_t alignment, bool zero, bool try_tcache_dalloc) { void *ret; size_t copysize; /* Try to avoid moving the allocation. */ ret = huge_ralloc_no_move(ptr, oldsize, size, extra); if (ret != NULL) return (ret); /* * size and oldsize are different enough that we need to use a * different size class. In that case, fall back to allocating new * space and copying. */ if (alignment > chunksize) ret = huge_palloc(size + extra, alignment, zero); else ret = huge_malloc(size + extra, zero); if (ret == NULL) { if (extra == 0) return (NULL); /* Try again, this time without extra. */ if (alignment > chunksize) ret = huge_palloc(size, alignment, zero); else ret = huge_malloc(size, zero); if (ret == NULL) return (NULL); } /* * Copy at most size bytes (not size+extra), since the caller has no * expectation that the extra bytes will be reliably preserved. */ copysize = (size < oldsize) ? size : oldsize; #ifdef JEMALLOC_MREMAP /* * Use mremap(2) if this is a huge-->huge reallocation, and neither the * source nor the destination are in dss. */ if (oldsize >= chunksize && (config_dss == false || (chunk_in_dss(ptr) == false && chunk_in_dss(ret) == false))) { size_t newsize = huge_salloc(ret); /* * Remove ptr from the tree of huge allocations before * performing the remap operation, in order to avoid the * possibility of another thread acquiring that mapping before * this one removes it from the tree. */ huge_dalloc(ptr, false); if (mremap(ptr, oldsize, newsize, MREMAP_MAYMOVE|MREMAP_FIXED, ret) == MAP_FAILED) { /* * Assuming no chunk management bugs in the allocator, * the only documented way an error can occur here is * if the application changed the map type for a * portion of the old allocation. This is firmly in * undefined behavior territory, so write a diagnostic * message, and optionally abort. */ char buf[BUFERROR_BUF]; buferror(buf, sizeof(buf)); malloc_printf(": Error in mremap(): %s\n", buf); if (opt_abort) abort(); memcpy(ret, ptr, copysize); chunk_dealloc_mmap(ptr, oldsize); } } else #endif { memcpy(ret, ptr, copysize); iqallocx(ptr, try_tcache_dalloc); } return (ret); } void huge_dalloc(void *ptr, bool unmap) { extent_node_t *node, key; malloc_mutex_lock(&huge_mtx); /* Extract from tree of huge allocations. */ key.addr = ptr; node = extent_tree_ad_search(&huge, &key); assert(node != NULL); assert(node->addr == ptr); extent_tree_ad_remove(&huge, node); if (config_stats) { stats_cactive_sub(node->size); huge_ndalloc++; huge_allocated -= node->size; } malloc_mutex_unlock(&huge_mtx); if (unmap && config_fill && config_dss && opt_junk) memset(node->addr, 0x5a, node->size); chunk_dealloc(node->addr, node->size, unmap); base_node_dealloc(node); } size_t huge_salloc(const void *ptr) { size_t ret; extent_node_t *node, key; malloc_mutex_lock(&huge_mtx); /* Extract from tree of huge allocations. */ key.addr = __DECONST(void *, ptr); node = extent_tree_ad_search(&huge, &key); assert(node != NULL); ret = node->size; malloc_mutex_unlock(&huge_mtx); return (ret); } prof_ctx_t * huge_prof_ctx_get(const void *ptr) { prof_ctx_t *ret; extent_node_t *node, key; malloc_mutex_lock(&huge_mtx); /* Extract from tree of huge allocations. */ key.addr = __DECONST(void *, ptr); node = extent_tree_ad_search(&huge, &key); assert(node != NULL); ret = node->prof_ctx; malloc_mutex_unlock(&huge_mtx); return (ret); } void huge_prof_ctx_set(const void *ptr, prof_ctx_t *ctx) { extent_node_t *node, key; malloc_mutex_lock(&huge_mtx); /* Extract from tree of huge allocations. */ key.addr = __DECONST(void *, ptr); node = extent_tree_ad_search(&huge, &key); assert(node != NULL); node->prof_ctx = ctx; malloc_mutex_unlock(&huge_mtx); } bool huge_boot(void) { /* Initialize chunks data. */ if (malloc_mutex_init(&huge_mtx)) return (true); extent_tree_ad_new(&huge); if (config_stats) { huge_nmalloc = 0; huge_ndalloc = 0; huge_allocated = 0; } return (false); } void huge_prefork(void) { malloc_mutex_prefork(&huge_mtx); } void huge_postfork_parent(void) { malloc_mutex_postfork_parent(&huge_mtx); } void huge_postfork_child(void) { malloc_mutex_postfork_child(&huge_mtx); } redis-2.6.16/deps/jemalloc/src/jemalloc.c000066400000000000000000001257661220734223100201730ustar00rootroot00000000000000#define JEMALLOC_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Data. */ malloc_tsd_data(, arenas, arena_t *, NULL) malloc_tsd_data(, thread_allocated, thread_allocated_t, THREAD_ALLOCATED_INITIALIZER) /* Runtime configuration options. */ const char *je_malloc_conf; #ifdef JEMALLOC_DEBUG bool opt_abort = true; # ifdef JEMALLOC_FILL bool opt_junk = true; # else bool opt_junk = false; # endif #else bool opt_abort = false; bool opt_junk = false; #endif size_t opt_quarantine = ZU(0); bool opt_redzone = false; bool opt_utrace = false; bool opt_valgrind = false; bool opt_xmalloc = false; bool opt_zero = false; size_t opt_narenas = 0; unsigned ncpus; malloc_mutex_t arenas_lock; arena_t **arenas; unsigned narenas_total; unsigned narenas_auto; /* Set to true once the allocator has been initialized. */ static bool malloc_initialized = false; #ifdef JEMALLOC_THREADED_INIT /* Used to let the initializing thread recursively allocate. */ # define NO_INITIALIZER ((unsigned long)0) # define INITIALIZER pthread_self() # define IS_INITIALIZER (malloc_initializer == pthread_self()) static pthread_t malloc_initializer = NO_INITIALIZER; #else # define NO_INITIALIZER false # define INITIALIZER true # define IS_INITIALIZER malloc_initializer static bool malloc_initializer = NO_INITIALIZER; #endif /* Used to avoid initialization races. */ #ifdef _WIN32 static malloc_mutex_t init_lock; JEMALLOC_ATTR(constructor) static void WINAPI _init_init_lock(void) { malloc_mutex_init(&init_lock); } #ifdef _MSC_VER # pragma section(".CRT$XCU", read) JEMALLOC_SECTION(".CRT$XCU") JEMALLOC_ATTR(used) static const void (WINAPI *init_init_lock)(void) = _init_init_lock; #endif #else static malloc_mutex_t init_lock = MALLOC_MUTEX_INITIALIZER; #endif typedef struct { void *p; /* Input pointer (as in realloc(p, s)). */ size_t s; /* Request size. */ void *r; /* Result pointer. */ } malloc_utrace_t; #ifdef JEMALLOC_UTRACE # define UTRACE(a, b, c) do { \ if (opt_utrace) { \ malloc_utrace_t ut; \ ut.p = (a); \ ut.s = (b); \ ut.r = (c); \ utrace(&ut, sizeof(ut)); \ } \ } while (0) #else # define UTRACE(a, b, c) #endif /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static void stats_print_atexit(void); static unsigned malloc_ncpus(void); static bool malloc_conf_next(char const **opts_p, char const **k_p, size_t *klen_p, char const **v_p, size_t *vlen_p); static void malloc_conf_error(const char *msg, const char *k, size_t klen, const char *v, size_t vlen); static void malloc_conf_init(void); static bool malloc_init_hard(void); static int imemalign(void **memptr, size_t alignment, size_t size, size_t min_alignment); /******************************************************************************/ /* * Begin miscellaneous support functions. */ /* Create a new arena and insert it into the arenas array at index ind. */ arena_t * arenas_extend(unsigned ind) { arena_t *ret; ret = (arena_t *)base_alloc(sizeof(arena_t)); if (ret != NULL && arena_new(ret, ind) == false) { arenas[ind] = ret; return (ret); } /* Only reached if there is an OOM error. */ /* * OOM here is quite inconvenient to propagate, since dealing with it * would require a check for failure in the fast path. Instead, punt * by using arenas[0]. In practice, this is an extremely unlikely * failure. */ malloc_write(": Error initializing arena\n"); if (opt_abort) abort(); return (arenas[0]); } /* Slow path, called only by choose_arena(). */ arena_t * choose_arena_hard(void) { arena_t *ret; if (narenas_auto > 1) { unsigned i, choose, first_null; choose = 0; first_null = narenas_auto; malloc_mutex_lock(&arenas_lock); assert(arenas[0] != NULL); for (i = 1; i < narenas_auto; i++) { if (arenas[i] != NULL) { /* * Choose the first arena that has the lowest * number of threads assigned to it. */ if (arenas[i]->nthreads < arenas[choose]->nthreads) choose = i; } else if (first_null == narenas_auto) { /* * Record the index of the first uninitialized * arena, in case all extant arenas are in use. * * NB: It is possible for there to be * discontinuities in terms of initialized * versus uninitialized arenas, due to the * "thread.arena" mallctl. */ first_null = i; } } if (arenas[choose]->nthreads == 0 || first_null == narenas_auto) { /* * Use an unloaded arena, or the least loaded arena if * all arenas are already initialized. */ ret = arenas[choose]; } else { /* Initialize a new arena. */ ret = arenas_extend(first_null); } ret->nthreads++; malloc_mutex_unlock(&arenas_lock); } else { ret = arenas[0]; malloc_mutex_lock(&arenas_lock); ret->nthreads++; malloc_mutex_unlock(&arenas_lock); } arenas_tsd_set(&ret); return (ret); } static void stats_print_atexit(void) { if (config_tcache && config_stats) { unsigned narenas, i; /* * Merge stats from extant threads. This is racy, since * individual threads do not lock when recording tcache stats * events. As a consequence, the final stats may be slightly * out of date by the time they are reported, if other threads * continue to allocate. */ for (i = 0, narenas = narenas_total_get(); i < narenas; i++) { arena_t *arena = arenas[i]; if (arena != NULL) { tcache_t *tcache; /* * tcache_stats_merge() locks bins, so if any * code is introduced that acquires both arena * and bin locks in the opposite order, * deadlocks may result. */ malloc_mutex_lock(&arena->lock); ql_foreach(tcache, &arena->tcache_ql, link) { tcache_stats_merge(tcache, arena); } malloc_mutex_unlock(&arena->lock); } } } je_malloc_stats_print(NULL, NULL, NULL); } /* * End miscellaneous support functions. */ /******************************************************************************/ /* * Begin initialization functions. */ static unsigned malloc_ncpus(void) { unsigned ret; long result; #ifdef _WIN32 SYSTEM_INFO si; GetSystemInfo(&si); result = si.dwNumberOfProcessors; #else result = sysconf(_SC_NPROCESSORS_ONLN); #endif if (result == -1) { /* Error. */ ret = 1; } else { ret = (unsigned)result; } return (ret); } void arenas_cleanup(void *arg) { arena_t *arena = *(arena_t **)arg; malloc_mutex_lock(&arenas_lock); arena->nthreads--; malloc_mutex_unlock(&arenas_lock); } static inline bool malloc_init(void) { if (malloc_initialized == false) return (malloc_init_hard()); return (false); } static bool malloc_conf_next(char const **opts_p, char const **k_p, size_t *klen_p, char const **v_p, size_t *vlen_p) { bool accept; const char *opts = *opts_p; *k_p = opts; for (accept = false; accept == false;) { switch (*opts) { case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': case 'Y': case 'Z': case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': case 's': case 't': case 'u': case 'v': case 'w': case 'x': case 'y': case 'z': case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case '_': opts++; break; case ':': opts++; *klen_p = (uintptr_t)opts - 1 - (uintptr_t)*k_p; *v_p = opts; accept = true; break; case '\0': if (opts != *opts_p) { malloc_write(": Conf string ends " "with key\n"); } return (true); default: malloc_write(": Malformed conf string\n"); return (true); } } for (accept = false; accept == false;) { switch (*opts) { case ',': opts++; /* * Look ahead one character here, because the next time * this function is called, it will assume that end of * input has been cleanly reached if no input remains, * but we have optimistically already consumed the * comma if one exists. */ if (*opts == '\0') { malloc_write(": Conf string ends " "with comma\n"); } *vlen_p = (uintptr_t)opts - 1 - (uintptr_t)*v_p; accept = true; break; case '\0': *vlen_p = (uintptr_t)opts - (uintptr_t)*v_p; accept = true; break; default: opts++; break; } } *opts_p = opts; return (false); } static void malloc_conf_error(const char *msg, const char *k, size_t klen, const char *v, size_t vlen) { malloc_printf(": %s: %.*s:%.*s\n", msg, (int)klen, k, (int)vlen, v); } static void malloc_conf_init(void) { unsigned i; char buf[PATH_MAX + 1]; const char *opts, *k, *v; size_t klen, vlen; /* * Automatically configure valgrind before processing options. The * valgrind option remains in jemalloc 3.x for compatibility reasons. */ if (config_valgrind) { opt_valgrind = (RUNNING_ON_VALGRIND != 0) ? true : false; if (config_fill && opt_valgrind) { opt_junk = false; assert(opt_zero == false); opt_quarantine = JEMALLOC_VALGRIND_QUARANTINE_DEFAULT; opt_redzone = true; } if (config_tcache && opt_valgrind) opt_tcache = false; } for (i = 0; i < 3; i++) { /* Get runtime configuration. */ switch (i) { case 0: if (je_malloc_conf != NULL) { /* * Use options that were compiled into the * program. */ opts = je_malloc_conf; } else { /* No configuration specified. */ buf[0] = '\0'; opts = buf; } break; case 1: { #ifndef _WIN32 int linklen; const char *linkname = # ifdef JEMALLOC_PREFIX "/etc/"JEMALLOC_PREFIX"malloc.conf" # else "/etc/malloc.conf" # endif ; if ((linklen = readlink(linkname, buf, sizeof(buf) - 1)) != -1) { /* * Use the contents of the "/etc/malloc.conf" * symbolic link's name. */ buf[linklen] = '\0'; opts = buf; } else #endif { /* No configuration specified. */ buf[0] = '\0'; opts = buf; } break; } case 2: { const char *envname = #ifdef JEMALLOC_PREFIX JEMALLOC_CPREFIX"MALLOC_CONF" #else "MALLOC_CONF" #endif ; if ((opts = getenv(envname)) != NULL) { /* * Do nothing; opts is already initialized to * the value of the MALLOC_CONF environment * variable. */ } else { /* No configuration specified. */ buf[0] = '\0'; opts = buf; } break; } default: /* NOTREACHED */ assert(false); buf[0] = '\0'; opts = buf; } while (*opts != '\0' && malloc_conf_next(&opts, &k, &klen, &v, &vlen) == false) { #define CONF_HANDLE_BOOL_HIT(o, n, hit) \ if (sizeof(n)-1 == klen && strncmp(n, k, \ klen) == 0) { \ if (strncmp("true", v, vlen) == 0 && \ vlen == sizeof("true")-1) \ o = true; \ else if (strncmp("false", v, vlen) == \ 0 && vlen == sizeof("false")-1) \ o = false; \ else { \ malloc_conf_error( \ "Invalid conf value", \ k, klen, v, vlen); \ } \ hit = true; \ } else \ hit = false; #define CONF_HANDLE_BOOL(o, n) { \ bool hit; \ CONF_HANDLE_BOOL_HIT(o, n, hit); \ if (hit) \ continue; \ } #define CONF_HANDLE_SIZE_T(o, n, min, max) \ if (sizeof(n)-1 == klen && strncmp(n, k, \ klen) == 0) { \ uintmax_t um; \ char *end; \ \ set_errno(0); \ um = malloc_strtoumax(v, &end, 0); \ if (get_errno() != 0 || (uintptr_t)end -\ (uintptr_t)v != vlen) { \ malloc_conf_error( \ "Invalid conf value", \ k, klen, v, vlen); \ } else if (um < min || um > max) { \ malloc_conf_error( \ "Out-of-range conf value", \ k, klen, v, vlen); \ } else \ o = um; \ continue; \ } #define CONF_HANDLE_SSIZE_T(o, n, min, max) \ if (sizeof(n)-1 == klen && strncmp(n, k, \ klen) == 0) { \ long l; \ char *end; \ \ set_errno(0); \ l = strtol(v, &end, 0); \ if (get_errno() != 0 || (uintptr_t)end -\ (uintptr_t)v != vlen) { \ malloc_conf_error( \ "Invalid conf value", \ k, klen, v, vlen); \ } else if (l < (ssize_t)min || l > \ (ssize_t)max) { \ malloc_conf_error( \ "Out-of-range conf value", \ k, klen, v, vlen); \ } else \ o = l; \ continue; \ } #define CONF_HANDLE_CHAR_P(o, n, d) \ if (sizeof(n)-1 == klen && strncmp(n, k, \ klen) == 0) { \ size_t cpylen = (vlen <= \ sizeof(o)-1) ? vlen : \ sizeof(o)-1; \ strncpy(o, v, cpylen); \ o[cpylen] = '\0'; \ continue; \ } CONF_HANDLE_BOOL(opt_abort, "abort") /* * Chunks always require at least one header page, plus * one data page in the absence of redzones, or three * pages in the presence of redzones. In order to * simplify options processing, fix the limit based on * config_fill. */ CONF_HANDLE_SIZE_T(opt_lg_chunk, "lg_chunk", LG_PAGE + (config_fill ? 2 : 1), (sizeof(size_t) << 3) - 1) if (strncmp("dss", k, klen) == 0) { int i; bool match = false; for (i = 0; i < dss_prec_limit; i++) { if (strncmp(dss_prec_names[i], v, vlen) == 0) { if (chunk_dss_prec_set(i)) { malloc_conf_error( "Error setting dss", k, klen, v, vlen); } else { opt_dss = dss_prec_names[i]; match = true; break; } } } if (match == false) { malloc_conf_error("Invalid conf value", k, klen, v, vlen); } continue; } CONF_HANDLE_SIZE_T(opt_narenas, "narenas", 1, SIZE_T_MAX) CONF_HANDLE_SSIZE_T(opt_lg_dirty_mult, "lg_dirty_mult", -1, (sizeof(size_t) << 3) - 1) CONF_HANDLE_BOOL(opt_stats_print, "stats_print") if (config_fill) { CONF_HANDLE_BOOL(opt_junk, "junk") CONF_HANDLE_SIZE_T(opt_quarantine, "quarantine", 0, SIZE_T_MAX) CONF_HANDLE_BOOL(opt_redzone, "redzone") CONF_HANDLE_BOOL(opt_zero, "zero") } if (config_utrace) { CONF_HANDLE_BOOL(opt_utrace, "utrace") } if (config_valgrind) { CONF_HANDLE_BOOL(opt_valgrind, "valgrind") } if (config_xmalloc) { CONF_HANDLE_BOOL(opt_xmalloc, "xmalloc") } if (config_tcache) { CONF_HANDLE_BOOL(opt_tcache, "tcache") CONF_HANDLE_SSIZE_T(opt_lg_tcache_max, "lg_tcache_max", -1, (sizeof(size_t) << 3) - 1) } if (config_prof) { CONF_HANDLE_BOOL(opt_prof, "prof") CONF_HANDLE_CHAR_P(opt_prof_prefix, "prof_prefix", "jeprof") CONF_HANDLE_BOOL(opt_prof_active, "prof_active") CONF_HANDLE_SSIZE_T(opt_lg_prof_sample, "lg_prof_sample", 0, (sizeof(uint64_t) << 3) - 1) CONF_HANDLE_BOOL(opt_prof_accum, "prof_accum") CONF_HANDLE_SSIZE_T(opt_lg_prof_interval, "lg_prof_interval", -1, (sizeof(uint64_t) << 3) - 1) CONF_HANDLE_BOOL(opt_prof_gdump, "prof_gdump") CONF_HANDLE_BOOL(opt_prof_final, "prof_final") CONF_HANDLE_BOOL(opt_prof_leak, "prof_leak") } malloc_conf_error("Invalid conf pair", k, klen, v, vlen); #undef CONF_HANDLE_BOOL #undef CONF_HANDLE_SIZE_T #undef CONF_HANDLE_SSIZE_T #undef CONF_HANDLE_CHAR_P } } } static bool malloc_init_hard(void) { arena_t *init_arenas[1]; malloc_mutex_lock(&init_lock); if (malloc_initialized || IS_INITIALIZER) { /* * Another thread initialized the allocator before this one * acquired init_lock, or this thread is the initializing * thread, and it is recursively allocating. */ malloc_mutex_unlock(&init_lock); return (false); } #ifdef JEMALLOC_THREADED_INIT if (malloc_initializer != NO_INITIALIZER && IS_INITIALIZER == false) { /* Busy-wait until the initializing thread completes. */ do { malloc_mutex_unlock(&init_lock); CPU_SPINWAIT; malloc_mutex_lock(&init_lock); } while (malloc_initialized == false); malloc_mutex_unlock(&init_lock); return (false); } #endif malloc_initializer = INITIALIZER; malloc_tsd_boot(); if (config_prof) prof_boot0(); malloc_conf_init(); #if (!defined(JEMALLOC_MUTEX_INIT_CB) && !defined(JEMALLOC_ZONE) \ && !defined(_WIN32)) /* Register fork handlers. */ if (pthread_atfork(jemalloc_prefork, jemalloc_postfork_parent, jemalloc_postfork_child) != 0) { malloc_write(": Error in pthread_atfork()\n"); if (opt_abort) abort(); } #endif if (opt_stats_print) { /* Print statistics at exit. */ if (atexit(stats_print_atexit) != 0) { malloc_write(": Error in atexit()\n"); if (opt_abort) abort(); } } if (base_boot()) { malloc_mutex_unlock(&init_lock); return (true); } if (chunk_boot()) { malloc_mutex_unlock(&init_lock); return (true); } if (ctl_boot()) { malloc_mutex_unlock(&init_lock); return (true); } if (config_prof) prof_boot1(); arena_boot(); if (config_tcache && tcache_boot0()) { malloc_mutex_unlock(&init_lock); return (true); } if (huge_boot()) { malloc_mutex_unlock(&init_lock); return (true); } if (malloc_mutex_init(&arenas_lock)) return (true); /* * Create enough scaffolding to allow recursive allocation in * malloc_ncpus(). */ narenas_total = narenas_auto = 1; arenas = init_arenas; memset(arenas, 0, sizeof(arena_t *) * narenas_auto); /* * Initialize one arena here. The rest are lazily created in * choose_arena_hard(). */ arenas_extend(0); if (arenas[0] == NULL) { malloc_mutex_unlock(&init_lock); return (true); } /* Initialize allocation counters before any allocations can occur. */ if (config_stats && thread_allocated_tsd_boot()) { malloc_mutex_unlock(&init_lock); return (true); } if (arenas_tsd_boot()) { malloc_mutex_unlock(&init_lock); return (true); } if (config_tcache && tcache_boot1()) { malloc_mutex_unlock(&init_lock); return (true); } if (config_fill && quarantine_boot()) { malloc_mutex_unlock(&init_lock); return (true); } if (config_prof && prof_boot2()) { malloc_mutex_unlock(&init_lock); return (true); } /* Get number of CPUs. */ malloc_mutex_unlock(&init_lock); ncpus = malloc_ncpus(); malloc_mutex_lock(&init_lock); if (mutex_boot()) { malloc_mutex_unlock(&init_lock); return (true); } if (opt_narenas == 0) { /* * For SMP systems, create more than one arena per CPU by * default. */ if (ncpus > 1) opt_narenas = ncpus << 2; else opt_narenas = 1; } narenas_auto = opt_narenas; /* * Make sure that the arenas array can be allocated. In practice, this * limit is enough to allow the allocator to function, but the ctl * machinery will fail to allocate memory at far lower limits. */ if (narenas_auto > chunksize / sizeof(arena_t *)) { narenas_auto = chunksize / sizeof(arena_t *); malloc_printf(": Reducing narenas to limit (%d)\n", narenas_auto); } narenas_total = narenas_auto; /* Allocate and initialize arenas. */ arenas = (arena_t **)base_alloc(sizeof(arena_t *) * narenas_total); if (arenas == NULL) { malloc_mutex_unlock(&init_lock); return (true); } /* * Zero the array. In practice, this should always be pre-zeroed, * since it was just mmap()ed, but let's be sure. */ memset(arenas, 0, sizeof(arena_t *) * narenas_total); /* Copy the pointer to the one arena that was already initialized. */ arenas[0] = init_arenas[0]; malloc_initialized = true; malloc_mutex_unlock(&init_lock); return (false); } /* * End initialization functions. */ /******************************************************************************/ /* * Begin malloc(3)-compatible functions. */ void * je_malloc(size_t size) { void *ret; size_t usize JEMALLOC_CC_SILENCE_INIT(0); prof_thr_cnt_t *cnt JEMALLOC_CC_SILENCE_INIT(NULL); if (malloc_init()) { ret = NULL; goto label_oom; } if (size == 0) size = 1; if (config_prof && opt_prof) { usize = s2u(size); PROF_ALLOC_PREP(1, usize, cnt); if (cnt == NULL) { ret = NULL; goto label_oom; } if (prof_promote && (uintptr_t)cnt != (uintptr_t)1U && usize <= SMALL_MAXCLASS) { ret = imalloc(SMALL_MAXCLASS+1); if (ret != NULL) arena_prof_promoted(ret, usize); } else ret = imalloc(size); } else { if (config_stats || (config_valgrind && opt_valgrind)) usize = s2u(size); ret = imalloc(size); } label_oom: if (ret == NULL) { if (config_xmalloc && opt_xmalloc) { malloc_write(": Error in malloc(): " "out of memory\n"); abort(); } set_errno(ENOMEM); } if (config_prof && opt_prof && ret != NULL) prof_malloc(ret, usize, cnt); if (config_stats && ret != NULL) { assert(usize == isalloc(ret, config_prof)); thread_allocated_tsd_get()->allocated += usize; } UTRACE(0, size, ret); JEMALLOC_VALGRIND_MALLOC(ret != NULL, ret, usize, false); return (ret); } JEMALLOC_ATTR(nonnull(1)) #ifdef JEMALLOC_PROF /* * Avoid any uncertainty as to how many backtrace frames to ignore in * PROF_ALLOC_PREP(). */ JEMALLOC_ATTR(noinline) #endif static int imemalign(void **memptr, size_t alignment, size_t size, size_t min_alignment) { int ret; size_t usize; void *result; prof_thr_cnt_t *cnt JEMALLOC_CC_SILENCE_INIT(NULL); assert(min_alignment != 0); if (malloc_init()) result = NULL; else { if (size == 0) size = 1; /* Make sure that alignment is a large enough power of 2. */ if (((alignment - 1) & alignment) != 0 || (alignment < min_alignment)) { if (config_xmalloc && opt_xmalloc) { malloc_write(": Error allocating " "aligned memory: invalid alignment\n"); abort(); } result = NULL; ret = EINVAL; goto label_return; } usize = sa2u(size, alignment); if (usize == 0) { result = NULL; ret = ENOMEM; goto label_return; } if (config_prof && opt_prof) { PROF_ALLOC_PREP(2, usize, cnt); if (cnt == NULL) { result = NULL; ret = EINVAL; } else { if (prof_promote && (uintptr_t)cnt != (uintptr_t)1U && usize <= SMALL_MAXCLASS) { assert(sa2u(SMALL_MAXCLASS+1, alignment) != 0); result = ipalloc(sa2u(SMALL_MAXCLASS+1, alignment), alignment, false); if (result != NULL) { arena_prof_promoted(result, usize); } } else { result = ipalloc(usize, alignment, false); } } } else result = ipalloc(usize, alignment, false); } if (result == NULL) { if (config_xmalloc && opt_xmalloc) { malloc_write(": Error allocating aligned " "memory: out of memory\n"); abort(); } ret = ENOMEM; goto label_return; } *memptr = result; ret = 0; label_return: if (config_stats && result != NULL) { assert(usize == isalloc(result, config_prof)); thread_allocated_tsd_get()->allocated += usize; } if (config_prof && opt_prof && result != NULL) prof_malloc(result, usize, cnt); UTRACE(0, size, result); return (ret); } int je_posix_memalign(void **memptr, size_t alignment, size_t size) { int ret = imemalign(memptr, alignment, size, sizeof(void *)); JEMALLOC_VALGRIND_MALLOC(ret == 0, *memptr, isalloc(*memptr, config_prof), false); return (ret); } void * je_aligned_alloc(size_t alignment, size_t size) { void *ret; int err; if ((err = imemalign(&ret, alignment, size, 1)) != 0) { ret = NULL; set_errno(err); } JEMALLOC_VALGRIND_MALLOC(err == 0, ret, isalloc(ret, config_prof), false); return (ret); } void * je_calloc(size_t num, size_t size) { void *ret; size_t num_size; size_t usize JEMALLOC_CC_SILENCE_INIT(0); prof_thr_cnt_t *cnt JEMALLOC_CC_SILENCE_INIT(NULL); if (malloc_init()) { num_size = 0; ret = NULL; goto label_return; } num_size = num * size; if (num_size == 0) { if (num == 0 || size == 0) num_size = 1; else { ret = NULL; goto label_return; } /* * Try to avoid division here. We know that it isn't possible to * overflow during multiplication if neither operand uses any of the * most significant half of the bits in a size_t. */ } else if (((num | size) & (SIZE_T_MAX << (sizeof(size_t) << 2))) && (num_size / size != num)) { /* size_t overflow. */ ret = NULL; goto label_return; } if (config_prof && opt_prof) { usize = s2u(num_size); PROF_ALLOC_PREP(1, usize, cnt); if (cnt == NULL) { ret = NULL; goto label_return; } if (prof_promote && (uintptr_t)cnt != (uintptr_t)1U && usize <= SMALL_MAXCLASS) { ret = icalloc(SMALL_MAXCLASS+1); if (ret != NULL) arena_prof_promoted(ret, usize); } else ret = icalloc(num_size); } else { if (config_stats || (config_valgrind && opt_valgrind)) usize = s2u(num_size); ret = icalloc(num_size); } label_return: if (ret == NULL) { if (config_xmalloc && opt_xmalloc) { malloc_write(": Error in calloc(): out of " "memory\n"); abort(); } set_errno(ENOMEM); } if (config_prof && opt_prof && ret != NULL) prof_malloc(ret, usize, cnt); if (config_stats && ret != NULL) { assert(usize == isalloc(ret, config_prof)); thread_allocated_tsd_get()->allocated += usize; } UTRACE(0, num_size, ret); JEMALLOC_VALGRIND_MALLOC(ret != NULL, ret, usize, true); return (ret); } void * je_realloc(void *ptr, size_t size) { void *ret; size_t usize JEMALLOC_CC_SILENCE_INIT(0); size_t old_size = 0; size_t old_rzsize JEMALLOC_CC_SILENCE_INIT(0); prof_thr_cnt_t *cnt JEMALLOC_CC_SILENCE_INIT(NULL); prof_ctx_t *old_ctx JEMALLOC_CC_SILENCE_INIT(NULL); if (size == 0) { if (ptr != NULL) { /* realloc(ptr, 0) is equivalent to free(p). */ if (config_prof) { old_size = isalloc(ptr, true); if (config_valgrind && opt_valgrind) old_rzsize = p2rz(ptr); } else if (config_stats) { old_size = isalloc(ptr, false); if (config_valgrind && opt_valgrind) old_rzsize = u2rz(old_size); } else if (config_valgrind && opt_valgrind) { old_size = isalloc(ptr, false); old_rzsize = u2rz(old_size); } if (config_prof && opt_prof) { old_ctx = prof_ctx_get(ptr); cnt = NULL; } iqalloc(ptr); ret = NULL; goto label_return; } else size = 1; } if (ptr != NULL) { assert(malloc_initialized || IS_INITIALIZER); if (config_prof) { old_size = isalloc(ptr, true); if (config_valgrind && opt_valgrind) old_rzsize = p2rz(ptr); } else if (config_stats) { old_size = isalloc(ptr, false); if (config_valgrind && opt_valgrind) old_rzsize = u2rz(old_size); } else if (config_valgrind && opt_valgrind) { old_size = isalloc(ptr, false); old_rzsize = u2rz(old_size); } if (config_prof && opt_prof) { usize = s2u(size); old_ctx = prof_ctx_get(ptr); PROF_ALLOC_PREP(1, usize, cnt); if (cnt == NULL) { old_ctx = NULL; ret = NULL; goto label_oom; } if (prof_promote && (uintptr_t)cnt != (uintptr_t)1U && usize <= SMALL_MAXCLASS) { ret = iralloc(ptr, SMALL_MAXCLASS+1, 0, 0, false, false); if (ret != NULL) arena_prof_promoted(ret, usize); else old_ctx = NULL; } else { ret = iralloc(ptr, size, 0, 0, false, false); if (ret == NULL) old_ctx = NULL; } } else { if (config_stats || (config_valgrind && opt_valgrind)) usize = s2u(size); ret = iralloc(ptr, size, 0, 0, false, false); } label_oom: if (ret == NULL) { if (config_xmalloc && opt_xmalloc) { malloc_write(": Error in realloc(): " "out of memory\n"); abort(); } set_errno(ENOMEM); } } else { /* realloc(NULL, size) is equivalent to malloc(size). */ if (config_prof && opt_prof) old_ctx = NULL; if (malloc_init()) { if (config_prof && opt_prof) cnt = NULL; ret = NULL; } else { if (config_prof && opt_prof) { usize = s2u(size); PROF_ALLOC_PREP(1, usize, cnt); if (cnt == NULL) ret = NULL; else { if (prof_promote && (uintptr_t)cnt != (uintptr_t)1U && usize <= SMALL_MAXCLASS) { ret = imalloc(SMALL_MAXCLASS+1); if (ret != NULL) { arena_prof_promoted(ret, usize); } } else ret = imalloc(size); } } else { if (config_stats || (config_valgrind && opt_valgrind)) usize = s2u(size); ret = imalloc(size); } } if (ret == NULL) { if (config_xmalloc && opt_xmalloc) { malloc_write(": Error in realloc(): " "out of memory\n"); abort(); } set_errno(ENOMEM); } } label_return: if (config_prof && opt_prof) prof_realloc(ret, usize, cnt, old_size, old_ctx); if (config_stats && ret != NULL) { thread_allocated_t *ta; assert(usize == isalloc(ret, config_prof)); ta = thread_allocated_tsd_get(); ta->allocated += usize; ta->deallocated += old_size; } UTRACE(ptr, size, ret); JEMALLOC_VALGRIND_REALLOC(ret, usize, ptr, old_size, old_rzsize, false); return (ret); } void je_free(void *ptr) { UTRACE(ptr, 0, 0); if (ptr != NULL) { size_t usize; size_t rzsize JEMALLOC_CC_SILENCE_INIT(0); assert(malloc_initialized || IS_INITIALIZER); if (config_prof && opt_prof) { usize = isalloc(ptr, config_prof); prof_free(ptr, usize); } else if (config_stats || config_valgrind) usize = isalloc(ptr, config_prof); if (config_stats) thread_allocated_tsd_get()->deallocated += usize; if (config_valgrind && opt_valgrind) rzsize = p2rz(ptr); iqalloc(ptr); JEMALLOC_VALGRIND_FREE(ptr, rzsize); } } /* * End malloc(3)-compatible functions. */ /******************************************************************************/ /* * Begin non-standard override functions. */ #ifdef JEMALLOC_OVERRIDE_MEMALIGN void * je_memalign(size_t alignment, size_t size) { void *ret JEMALLOC_CC_SILENCE_INIT(NULL); imemalign(&ret, alignment, size, 1); JEMALLOC_VALGRIND_MALLOC(ret != NULL, ret, size, false); return (ret); } #endif #ifdef JEMALLOC_OVERRIDE_VALLOC void * je_valloc(size_t size) { void *ret JEMALLOC_CC_SILENCE_INIT(NULL); imemalign(&ret, PAGE, size, 1); JEMALLOC_VALGRIND_MALLOC(ret != NULL, ret, size, false); return (ret); } #endif /* * is_malloc(je_malloc) is some macro magic to detect if jemalloc_defs.h has * #define je_malloc malloc */ #define malloc_is_malloc 1 #define is_malloc_(a) malloc_is_ ## a #define is_malloc(a) is_malloc_(a) #if ((is_malloc(je_malloc) == 1) && defined(__GLIBC__) && !defined(__UCLIBC__)) /* * glibc provides the RTLD_DEEPBIND flag for dlopen which can make it possible * to inconsistently reference libc's malloc(3)-compatible functions * (https://bugzilla.mozilla.org/show_bug.cgi?id=493541). * * These definitions interpose hooks in glibc. The functions are actually * passed an extra argument for the caller return address, which will be * ignored. */ JEMALLOC_EXPORT void (* __free_hook)(void *ptr) = je_free; JEMALLOC_EXPORT void *(* __malloc_hook)(size_t size) = je_malloc; JEMALLOC_EXPORT void *(* __realloc_hook)(void *ptr, size_t size) = je_realloc; JEMALLOC_EXPORT void *(* __memalign_hook)(size_t alignment, size_t size) = je_memalign; #endif /* * End non-standard override functions. */ /******************************************************************************/ /* * Begin non-standard functions. */ size_t je_malloc_usable_size(JEMALLOC_USABLE_SIZE_CONST void *ptr) { size_t ret; assert(malloc_initialized || IS_INITIALIZER); if (config_ivsalloc) ret = ivsalloc(ptr, config_prof); else ret = (ptr != NULL) ? isalloc(ptr, config_prof) : 0; return (ret); } void je_malloc_stats_print(void (*write_cb)(void *, const char *), void *cbopaque, const char *opts) { stats_print(write_cb, cbopaque, opts); } int je_mallctl(const char *name, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { if (malloc_init()) return (EAGAIN); return (ctl_byname(name, oldp, oldlenp, newp, newlen)); } int je_mallctlnametomib(const char *name, size_t *mibp, size_t *miblenp) { if (malloc_init()) return (EAGAIN); return (ctl_nametomib(name, mibp, miblenp)); } int je_mallctlbymib(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) { if (malloc_init()) return (EAGAIN); return (ctl_bymib(mib, miblen, oldp, oldlenp, newp, newlen)); } /* * End non-standard functions. */ /******************************************************************************/ /* * Begin experimental functions. */ #ifdef JEMALLOC_EXPERIMENTAL JEMALLOC_INLINE void * iallocm(size_t usize, size_t alignment, bool zero, bool try_tcache, arena_t *arena) { assert(usize == ((alignment == 0) ? s2u(usize) : sa2u(usize, alignment))); if (alignment != 0) return (ipallocx(usize, alignment, zero, try_tcache, arena)); else if (zero) return (icallocx(usize, try_tcache, arena)); else return (imallocx(usize, try_tcache, arena)); } int je_allocm(void **ptr, size_t *rsize, size_t size, int flags) { void *p; size_t usize; size_t alignment = (ZU(1) << (flags & ALLOCM_LG_ALIGN_MASK) & (SIZE_T_MAX-1)); bool zero = flags & ALLOCM_ZERO; unsigned arena_ind = ((unsigned)(flags >> 8)) - 1; arena_t *arena; bool try_tcache; assert(ptr != NULL); assert(size != 0); if (malloc_init()) goto label_oom; if (arena_ind != UINT_MAX) { arena = arenas[arena_ind]; try_tcache = false; } else { arena = NULL; try_tcache = true; } usize = (alignment == 0) ? s2u(size) : sa2u(size, alignment); if (usize == 0) goto label_oom; if (config_prof && opt_prof) { prof_thr_cnt_t *cnt; PROF_ALLOC_PREP(1, usize, cnt); if (cnt == NULL) goto label_oom; if (prof_promote && (uintptr_t)cnt != (uintptr_t)1U && usize <= SMALL_MAXCLASS) { size_t usize_promoted = (alignment == 0) ? s2u(SMALL_MAXCLASS+1) : sa2u(SMALL_MAXCLASS+1, alignment); assert(usize_promoted != 0); p = iallocm(usize_promoted, alignment, zero, try_tcache, arena); if (p == NULL) goto label_oom; arena_prof_promoted(p, usize); } else { p = iallocm(usize, alignment, zero, try_tcache, arena); if (p == NULL) goto label_oom; } prof_malloc(p, usize, cnt); } else { p = iallocm(usize, alignment, zero, try_tcache, arena); if (p == NULL) goto label_oom; } if (rsize != NULL) *rsize = usize; *ptr = p; if (config_stats) { assert(usize == isalloc(p, config_prof)); thread_allocated_tsd_get()->allocated += usize; } UTRACE(0, size, p); JEMALLOC_VALGRIND_MALLOC(true, p, usize, zero); return (ALLOCM_SUCCESS); label_oom: if (config_xmalloc && opt_xmalloc) { malloc_write(": Error in allocm(): " "out of memory\n"); abort(); } *ptr = NULL; UTRACE(0, size, 0); return (ALLOCM_ERR_OOM); } int je_rallocm(void **ptr, size_t *rsize, size_t size, size_t extra, int flags) { void *p, *q; size_t usize; size_t old_size; size_t old_rzsize JEMALLOC_CC_SILENCE_INIT(0); size_t alignment = (ZU(1) << (flags & ALLOCM_LG_ALIGN_MASK) & (SIZE_T_MAX-1)); bool zero = flags & ALLOCM_ZERO; bool no_move = flags & ALLOCM_NO_MOVE; unsigned arena_ind = ((unsigned)(flags >> 8)) - 1; bool try_tcache_alloc, try_tcache_dalloc; arena_t *arena; assert(ptr != NULL); assert(*ptr != NULL); assert(size != 0); assert(SIZE_T_MAX - size >= extra); assert(malloc_initialized || IS_INITIALIZER); if (arena_ind != UINT_MAX) { arena_chunk_t *chunk; try_tcache_alloc = true; chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(*ptr); try_tcache_dalloc = (chunk == *ptr || chunk->arena != arenas[arena_ind]); arena = arenas[arena_ind]; } else { try_tcache_alloc = true; try_tcache_dalloc = true; arena = NULL; } p = *ptr; if (config_prof && opt_prof) { prof_thr_cnt_t *cnt; /* * usize isn't knowable before iralloc() returns when extra is * non-zero. Therefore, compute its maximum possible value and * use that in PROF_ALLOC_PREP() to decide whether to capture a * backtrace. prof_realloc() will use the actual usize to * decide whether to sample. */ size_t max_usize = (alignment == 0) ? s2u(size+extra) : sa2u(size+extra, alignment); prof_ctx_t *old_ctx = prof_ctx_get(p); old_size = isalloc(p, true); if (config_valgrind && opt_valgrind) old_rzsize = p2rz(p); PROF_ALLOC_PREP(1, max_usize, cnt); if (cnt == NULL) goto label_oom; /* * Use minimum usize to determine whether promotion may happen. */ if (prof_promote && (uintptr_t)cnt != (uintptr_t)1U && ((alignment == 0) ? s2u(size) : sa2u(size, alignment)) <= SMALL_MAXCLASS) { q = irallocx(p, SMALL_MAXCLASS+1, (SMALL_MAXCLASS+1 >= size+extra) ? 0 : size+extra - (SMALL_MAXCLASS+1), alignment, zero, no_move, try_tcache_alloc, try_tcache_dalloc, arena); if (q == NULL) goto label_err; if (max_usize < PAGE) { usize = max_usize; arena_prof_promoted(q, usize); } else usize = isalloc(q, config_prof); } else { q = irallocx(p, size, extra, alignment, zero, no_move, try_tcache_alloc, try_tcache_dalloc, arena); if (q == NULL) goto label_err; usize = isalloc(q, config_prof); } prof_realloc(q, usize, cnt, old_size, old_ctx); if (rsize != NULL) *rsize = usize; } else { if (config_stats) { old_size = isalloc(p, false); if (config_valgrind && opt_valgrind) old_rzsize = u2rz(old_size); } else if (config_valgrind && opt_valgrind) { old_size = isalloc(p, false); old_rzsize = u2rz(old_size); } q = irallocx(p, size, extra, alignment, zero, no_move, try_tcache_alloc, try_tcache_dalloc, arena); if (q == NULL) goto label_err; if (config_stats) usize = isalloc(q, config_prof); if (rsize != NULL) { if (config_stats == false) usize = isalloc(q, config_prof); *rsize = usize; } } *ptr = q; if (config_stats) { thread_allocated_t *ta; ta = thread_allocated_tsd_get(); ta->allocated += usize; ta->deallocated += old_size; } UTRACE(p, size, q); JEMALLOC_VALGRIND_REALLOC(q, usize, p, old_size, old_rzsize, zero); return (ALLOCM_SUCCESS); label_err: if (no_move) { UTRACE(p, size, q); return (ALLOCM_ERR_NOT_MOVED); } label_oom: if (config_xmalloc && opt_xmalloc) { malloc_write(": Error in rallocm(): " "out of memory\n"); abort(); } UTRACE(p, size, 0); return (ALLOCM_ERR_OOM); } int je_sallocm(const void *ptr, size_t *rsize, int flags) { size_t sz; assert(malloc_initialized || IS_INITIALIZER); if (config_ivsalloc) sz = ivsalloc(ptr, config_prof); else { assert(ptr != NULL); sz = isalloc(ptr, config_prof); } assert(rsize != NULL); *rsize = sz; return (ALLOCM_SUCCESS); } int je_dallocm(void *ptr, int flags) { size_t usize; size_t rzsize JEMALLOC_CC_SILENCE_INIT(0); unsigned arena_ind = ((unsigned)(flags >> 8)) - 1; bool try_tcache; assert(ptr != NULL); assert(malloc_initialized || IS_INITIALIZER); if (arena_ind != UINT_MAX) { arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); try_tcache = (chunk == ptr || chunk->arena != arenas[arena_ind]); } else try_tcache = true; UTRACE(ptr, 0, 0); if (config_stats || config_valgrind) usize = isalloc(ptr, config_prof); if (config_prof && opt_prof) { if (config_stats == false && config_valgrind == false) usize = isalloc(ptr, config_prof); prof_free(ptr, usize); } if (config_stats) thread_allocated_tsd_get()->deallocated += usize; if (config_valgrind && opt_valgrind) rzsize = p2rz(ptr); iqallocx(ptr, try_tcache); JEMALLOC_VALGRIND_FREE(ptr, rzsize); return (ALLOCM_SUCCESS); } int je_nallocm(size_t *rsize, size_t size, int flags) { size_t usize; size_t alignment = (ZU(1) << (flags & ALLOCM_LG_ALIGN_MASK) & (SIZE_T_MAX-1)); assert(size != 0); if (malloc_init()) return (ALLOCM_ERR_OOM); usize = (alignment == 0) ? s2u(size) : sa2u(size, alignment); if (usize == 0) return (ALLOCM_ERR_OOM); if (rsize != NULL) *rsize = usize; return (ALLOCM_SUCCESS); } #endif /* * End experimental functions. */ /******************************************************************************/ /* * The following functions are used by threading libraries for protection of * malloc during fork(). */ /* * If an application creates a thread before doing any allocation in the main * thread, then calls fork(2) in the main thread followed by memory allocation * in the child process, a race can occur that results in deadlock within the * child: the main thread may have forked while the created thread had * partially initialized the allocator. Ordinarily jemalloc prevents * fork/malloc races via the following functions it registers during * initialization using pthread_atfork(), but of course that does no good if * the allocator isn't fully initialized at fork time. The following library * constructor is a partial solution to this problem. It may still possible to * trigger the deadlock described above, but doing so would involve forking via * a library constructor that runs before jemalloc's runs. */ JEMALLOC_ATTR(constructor) static void jemalloc_constructor(void) { malloc_init(); } #ifndef JEMALLOC_MUTEX_INIT_CB void jemalloc_prefork(void) #else JEMALLOC_EXPORT void _malloc_prefork(void) #endif { unsigned i; #ifdef JEMALLOC_MUTEX_INIT_CB if (malloc_initialized == false) return; #endif assert(malloc_initialized); /* Acquire all mutexes in a safe order. */ ctl_prefork(); malloc_mutex_prefork(&arenas_lock); for (i = 0; i < narenas_total; i++) { if (arenas[i] != NULL) arena_prefork(arenas[i]); } prof_prefork(); chunk_prefork(); base_prefork(); huge_prefork(); } #ifndef JEMALLOC_MUTEX_INIT_CB void jemalloc_postfork_parent(void) #else JEMALLOC_EXPORT void _malloc_postfork(void) #endif { unsigned i; #ifdef JEMALLOC_MUTEX_INIT_CB if (malloc_initialized == false) return; #endif assert(malloc_initialized); /* Release all mutexes, now that fork() has completed. */ huge_postfork_parent(); base_postfork_parent(); chunk_postfork_parent(); prof_postfork_parent(); for (i = 0; i < narenas_total; i++) { if (arenas[i] != NULL) arena_postfork_parent(arenas[i]); } malloc_mutex_postfork_parent(&arenas_lock); ctl_postfork_parent(); } void jemalloc_postfork_child(void) { unsigned i; assert(malloc_initialized); /* Release all mutexes, now that fork() has completed. */ huge_postfork_child(); base_postfork_child(); chunk_postfork_child(); prof_postfork_child(); for (i = 0; i < narenas_total; i++) { if (arenas[i] != NULL) arena_postfork_child(arenas[i]); } malloc_mutex_postfork_child(&arenas_lock); ctl_postfork_child(); } /******************************************************************************/ /* * The following functions are used for TLS allocation/deallocation in static * binaries on FreeBSD. The primary difference between these and i[mcd]alloc() * is that these avoid accessing TLS variables. */ static void * a0alloc(size_t size, bool zero) { if (malloc_init()) return (NULL); if (size == 0) size = 1; if (size <= arena_maxclass) return (arena_malloc(arenas[0], size, zero, false)); else return (huge_malloc(size, zero)); } void * a0malloc(size_t size) { return (a0alloc(size, false)); } void * a0calloc(size_t num, size_t size) { return (a0alloc(num * size, true)); } void a0free(void *ptr) { arena_chunk_t *chunk; if (ptr == NULL) return; chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); if (chunk != ptr) arena_dalloc(chunk->arena, chunk, ptr, false); else huge_dalloc(ptr, true); } /******************************************************************************/ redis-2.6.16/deps/jemalloc/src/mb.c000066400000000000000000000001101220734223100167520ustar00rootroot00000000000000#define JEMALLOC_MB_C_ #include "jemalloc/internal/jemalloc_internal.h" redis-2.6.16/deps/jemalloc/src/mutex.c000066400000000000000000000064131220734223100175320ustar00rootroot00000000000000#define JEMALLOC_MUTEX_C_ #include "jemalloc/internal/jemalloc_internal.h" #if defined(JEMALLOC_LAZY_LOCK) && !defined(_WIN32) #include #endif #ifndef _CRT_SPINCOUNT #define _CRT_SPINCOUNT 4000 #endif /******************************************************************************/ /* Data. */ #ifdef JEMALLOC_LAZY_LOCK bool isthreaded = false; #endif #ifdef JEMALLOC_MUTEX_INIT_CB static bool postpone_init = true; static malloc_mutex_t *postponed_mutexes = NULL; #endif #if defined(JEMALLOC_LAZY_LOCK) && !defined(_WIN32) static void pthread_create_once(void); #endif /******************************************************************************/ /* * We intercept pthread_create() calls in order to toggle isthreaded if the * process goes multi-threaded. */ #if defined(JEMALLOC_LAZY_LOCK) && !defined(_WIN32) static int (*pthread_create_fptr)(pthread_t *__restrict, const pthread_attr_t *, void *(*)(void *), void *__restrict); static void pthread_create_once(void) { pthread_create_fptr = dlsym(RTLD_NEXT, "pthread_create"); if (pthread_create_fptr == NULL) { malloc_write(": Error in dlsym(RTLD_NEXT, " "\"pthread_create\")\n"); abort(); } isthreaded = true; } JEMALLOC_EXPORT int pthread_create(pthread_t *__restrict thread, const pthread_attr_t *__restrict attr, void *(*start_routine)(void *), void *__restrict arg) { static pthread_once_t once_control = PTHREAD_ONCE_INIT; pthread_once(&once_control, pthread_create_once); return (pthread_create_fptr(thread, attr, start_routine, arg)); } #endif /******************************************************************************/ #ifdef JEMALLOC_MUTEX_INIT_CB JEMALLOC_EXPORT int _pthread_mutex_init_calloc_cb(pthread_mutex_t *mutex, void *(calloc_cb)(size_t, size_t)); #endif bool malloc_mutex_init(malloc_mutex_t *mutex) { #ifdef _WIN32 if (!InitializeCriticalSectionAndSpinCount(&mutex->lock, _CRT_SPINCOUNT)) return (true); #elif (defined(JEMALLOC_OSSPIN)) mutex->lock = 0; #elif (defined(JEMALLOC_MUTEX_INIT_CB)) if (postpone_init) { mutex->postponed_next = postponed_mutexes; postponed_mutexes = mutex; } else { if (_pthread_mutex_init_calloc_cb(&mutex->lock, base_calloc) != 0) return (true); } #else pthread_mutexattr_t attr; if (pthread_mutexattr_init(&attr) != 0) return (true); pthread_mutexattr_settype(&attr, MALLOC_MUTEX_TYPE); if (pthread_mutex_init(&mutex->lock, &attr) != 0) { pthread_mutexattr_destroy(&attr); return (true); } pthread_mutexattr_destroy(&attr); #endif return (false); } void malloc_mutex_prefork(malloc_mutex_t *mutex) { malloc_mutex_lock(mutex); } void malloc_mutex_postfork_parent(malloc_mutex_t *mutex) { malloc_mutex_unlock(mutex); } void malloc_mutex_postfork_child(malloc_mutex_t *mutex) { #ifdef JEMALLOC_MUTEX_INIT_CB malloc_mutex_unlock(mutex); #else if (malloc_mutex_init(mutex)) { malloc_printf(": Error re-initializing mutex in " "child\n"); if (opt_abort) abort(); } #endif } bool mutex_boot(void) { #ifdef JEMALLOC_MUTEX_INIT_CB postpone_init = false; while (postponed_mutexes != NULL) { if (_pthread_mutex_init_calloc_cb(&postponed_mutexes->lock, base_calloc) != 0) return (true); postponed_mutexes = postponed_mutexes->postponed_next; } #endif return (false); } redis-2.6.16/deps/jemalloc/src/prof.c000066400000000000000000000726251220734223100173460ustar00rootroot00000000000000#define JEMALLOC_PROF_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ #ifdef JEMALLOC_PROF_LIBUNWIND #define UNW_LOCAL_ONLY #include #endif #ifdef JEMALLOC_PROF_LIBGCC #include #endif /******************************************************************************/ /* Data. */ malloc_tsd_data(, prof_tdata, prof_tdata_t *, NULL) bool opt_prof = false; bool opt_prof_active = true; size_t opt_lg_prof_sample = LG_PROF_SAMPLE_DEFAULT; ssize_t opt_lg_prof_interval = LG_PROF_INTERVAL_DEFAULT; bool opt_prof_gdump = false; bool opt_prof_final = true; bool opt_prof_leak = false; bool opt_prof_accum = false; char opt_prof_prefix[PATH_MAX + 1]; uint64_t prof_interval; bool prof_promote; /* * Table of mutexes that are shared among ctx's. These are leaf locks, so * there is no problem with using them for more than one ctx at the same time. * The primary motivation for this sharing though is that ctx's are ephemeral, * and destroying mutexes causes complications for systems that allocate when * creating/destroying mutexes. */ static malloc_mutex_t *ctx_locks; static unsigned cum_ctxs; /* Atomic counter. */ /* * Global hash of (prof_bt_t *)-->(prof_ctx_t *). This is the master data * structure that knows about all backtraces currently captured. */ static ckh_t bt2ctx; static malloc_mutex_t bt2ctx_mtx; static malloc_mutex_t prof_dump_seq_mtx; static uint64_t prof_dump_seq; static uint64_t prof_dump_iseq; static uint64_t prof_dump_mseq; static uint64_t prof_dump_useq; /* * This buffer is rather large for stack allocation, so use a single buffer for * all profile dumps. The buffer is implicitly protected by bt2ctx_mtx, since * it must be locked anyway during dumping. */ static char prof_dump_buf[PROF_DUMP_BUFSIZE]; static unsigned prof_dump_buf_end; static int prof_dump_fd; /* Do not dump any profiles until bootstrapping is complete. */ static bool prof_booted = false; /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static prof_bt_t *bt_dup(prof_bt_t *bt); static void bt_destroy(prof_bt_t *bt); #ifdef JEMALLOC_PROF_LIBGCC static _Unwind_Reason_Code prof_unwind_init_callback( struct _Unwind_Context *context, void *arg); static _Unwind_Reason_Code prof_unwind_callback( struct _Unwind_Context *context, void *arg); #endif static bool prof_flush(bool propagate_err); static bool prof_write(bool propagate_err, const char *s); static bool prof_printf(bool propagate_err, const char *format, ...) JEMALLOC_ATTR(format(printf, 2, 3)); static void prof_ctx_sum(prof_ctx_t *ctx, prof_cnt_t *cnt_all, size_t *leak_nctx); static void prof_ctx_destroy(prof_ctx_t *ctx); static void prof_ctx_merge(prof_ctx_t *ctx, prof_thr_cnt_t *cnt); static bool prof_dump_ctx(bool propagate_err, prof_ctx_t *ctx, prof_bt_t *bt); static bool prof_dump_maps(bool propagate_err); static bool prof_dump(bool propagate_err, const char *filename, bool leakcheck); static void prof_dump_filename(char *filename, char v, int64_t vseq); static void prof_fdump(void); static void prof_bt_hash(const void *key, unsigned minbits, size_t *hash1, size_t *hash2); static bool prof_bt_keycomp(const void *k1, const void *k2); static malloc_mutex_t *prof_ctx_mutex_choose(void); /******************************************************************************/ void bt_init(prof_bt_t *bt, void **vec) { cassert(config_prof); bt->vec = vec; bt->len = 0; } static void bt_destroy(prof_bt_t *bt) { cassert(config_prof); idalloc(bt); } static prof_bt_t * bt_dup(prof_bt_t *bt) { prof_bt_t *ret; cassert(config_prof); /* * Create a single allocation that has space for vec immediately * following the prof_bt_t structure. The backtraces that get * stored in the backtrace caches are copied from stack-allocated * temporary variables, so size is known at creation time. Making this * a contiguous object improves cache locality. */ ret = (prof_bt_t *)imalloc(QUANTUM_CEILING(sizeof(prof_bt_t)) + (bt->len * sizeof(void *))); if (ret == NULL) return (NULL); ret->vec = (void **)((uintptr_t)ret + QUANTUM_CEILING(sizeof(prof_bt_t))); memcpy(ret->vec, bt->vec, bt->len * sizeof(void *)); ret->len = bt->len; return (ret); } static inline void prof_enter(prof_tdata_t *prof_tdata) { cassert(config_prof); assert(prof_tdata->enq == false); prof_tdata->enq = true; malloc_mutex_lock(&bt2ctx_mtx); } static inline void prof_leave(prof_tdata_t *prof_tdata) { bool idump, gdump; cassert(config_prof); malloc_mutex_unlock(&bt2ctx_mtx); assert(prof_tdata->enq); prof_tdata->enq = false; idump = prof_tdata->enq_idump; prof_tdata->enq_idump = false; gdump = prof_tdata->enq_gdump; prof_tdata->enq_gdump = false; if (idump) prof_idump(); if (gdump) prof_gdump(); } #ifdef JEMALLOC_PROF_LIBUNWIND void prof_backtrace(prof_bt_t *bt, unsigned nignore) { unw_context_t uc; unw_cursor_t cursor; unsigned i; int err; cassert(config_prof); assert(bt->len == 0); assert(bt->vec != NULL); unw_getcontext(&uc); unw_init_local(&cursor, &uc); /* Throw away (nignore+1) stack frames, if that many exist. */ for (i = 0; i < nignore + 1; i++) { err = unw_step(&cursor); if (err <= 0) return; } /* * Iterate over stack frames until there are no more, or until no space * remains in bt. */ for (i = 0; i < PROF_BT_MAX; i++) { unw_get_reg(&cursor, UNW_REG_IP, (unw_word_t *)&bt->vec[i]); bt->len++; err = unw_step(&cursor); if (err <= 0) break; } } #elif (defined(JEMALLOC_PROF_LIBGCC)) static _Unwind_Reason_Code prof_unwind_init_callback(struct _Unwind_Context *context, void *arg) { cassert(config_prof); return (_URC_NO_REASON); } static _Unwind_Reason_Code prof_unwind_callback(struct _Unwind_Context *context, void *arg) { prof_unwind_data_t *data = (prof_unwind_data_t *)arg; cassert(config_prof); if (data->nignore > 0) data->nignore--; else { data->bt->vec[data->bt->len] = (void *)_Unwind_GetIP(context); data->bt->len++; if (data->bt->len == data->max) return (_URC_END_OF_STACK); } return (_URC_NO_REASON); } void prof_backtrace(prof_bt_t *bt, unsigned nignore) { prof_unwind_data_t data = {bt, nignore, PROF_BT_MAX}; cassert(config_prof); _Unwind_Backtrace(prof_unwind_callback, &data); } #elif (defined(JEMALLOC_PROF_GCC)) void prof_backtrace(prof_bt_t *bt, unsigned nignore) { #define BT_FRAME(i) \ if ((i) < nignore + PROF_BT_MAX) { \ void *p; \ if (__builtin_frame_address(i) == 0) \ return; \ p = __builtin_return_address(i); \ if (p == NULL) \ return; \ if (i >= nignore) { \ bt->vec[(i) - nignore] = p; \ bt->len = (i) - nignore + 1; \ } \ } else \ return; cassert(config_prof); assert(nignore <= 3); BT_FRAME(0) BT_FRAME(1) BT_FRAME(2) BT_FRAME(3) BT_FRAME(4) BT_FRAME(5) BT_FRAME(6) BT_FRAME(7) BT_FRAME(8) BT_FRAME(9) BT_FRAME(10) BT_FRAME(11) BT_FRAME(12) BT_FRAME(13) BT_FRAME(14) BT_FRAME(15) BT_FRAME(16) BT_FRAME(17) BT_FRAME(18) BT_FRAME(19) BT_FRAME(20) BT_FRAME(21) BT_FRAME(22) BT_FRAME(23) BT_FRAME(24) BT_FRAME(25) BT_FRAME(26) BT_FRAME(27) BT_FRAME(28) BT_FRAME(29) BT_FRAME(30) BT_FRAME(31) BT_FRAME(32) BT_FRAME(33) BT_FRAME(34) BT_FRAME(35) BT_FRAME(36) BT_FRAME(37) BT_FRAME(38) BT_FRAME(39) BT_FRAME(40) BT_FRAME(41) BT_FRAME(42) BT_FRAME(43) BT_FRAME(44) BT_FRAME(45) BT_FRAME(46) BT_FRAME(47) BT_FRAME(48) BT_FRAME(49) BT_FRAME(50) BT_FRAME(51) BT_FRAME(52) BT_FRAME(53) BT_FRAME(54) BT_FRAME(55) BT_FRAME(56) BT_FRAME(57) BT_FRAME(58) BT_FRAME(59) BT_FRAME(60) BT_FRAME(61) BT_FRAME(62) BT_FRAME(63) BT_FRAME(64) BT_FRAME(65) BT_FRAME(66) BT_FRAME(67) BT_FRAME(68) BT_FRAME(69) BT_FRAME(70) BT_FRAME(71) BT_FRAME(72) BT_FRAME(73) BT_FRAME(74) BT_FRAME(75) BT_FRAME(76) BT_FRAME(77) BT_FRAME(78) BT_FRAME(79) BT_FRAME(80) BT_FRAME(81) BT_FRAME(82) BT_FRAME(83) BT_FRAME(84) BT_FRAME(85) BT_FRAME(86) BT_FRAME(87) BT_FRAME(88) BT_FRAME(89) BT_FRAME(90) BT_FRAME(91) BT_FRAME(92) BT_FRAME(93) BT_FRAME(94) BT_FRAME(95) BT_FRAME(96) BT_FRAME(97) BT_FRAME(98) BT_FRAME(99) BT_FRAME(100) BT_FRAME(101) BT_FRAME(102) BT_FRAME(103) BT_FRAME(104) BT_FRAME(105) BT_FRAME(106) BT_FRAME(107) BT_FRAME(108) BT_FRAME(109) BT_FRAME(110) BT_FRAME(111) BT_FRAME(112) BT_FRAME(113) BT_FRAME(114) BT_FRAME(115) BT_FRAME(116) BT_FRAME(117) BT_FRAME(118) BT_FRAME(119) BT_FRAME(120) BT_FRAME(121) BT_FRAME(122) BT_FRAME(123) BT_FRAME(124) BT_FRAME(125) BT_FRAME(126) BT_FRAME(127) /* Extras to compensate for nignore. */ BT_FRAME(128) BT_FRAME(129) BT_FRAME(130) #undef BT_FRAME } #else void prof_backtrace(prof_bt_t *bt, unsigned nignore) { cassert(config_prof); assert(false); } #endif prof_thr_cnt_t * prof_lookup(prof_bt_t *bt) { union { prof_thr_cnt_t *p; void *v; } ret; prof_tdata_t *prof_tdata; cassert(config_prof); prof_tdata = prof_tdata_get(); if ((uintptr_t)prof_tdata <= (uintptr_t)PROF_TDATA_STATE_MAX) return (NULL); if (ckh_search(&prof_tdata->bt2cnt, bt, NULL, &ret.v)) { union { prof_bt_t *p; void *v; } btkey; union { prof_ctx_t *p; void *v; } ctx; bool new_ctx; /* * This thread's cache lacks bt. Look for it in the global * cache. */ prof_enter(prof_tdata); if (ckh_search(&bt2ctx, bt, &btkey.v, &ctx.v)) { /* bt has never been seen before. Insert it. */ ctx.v = imalloc(sizeof(prof_ctx_t)); if (ctx.v == NULL) { prof_leave(prof_tdata); return (NULL); } btkey.p = bt_dup(bt); if (btkey.v == NULL) { prof_leave(prof_tdata); idalloc(ctx.v); return (NULL); } ctx.p->bt = btkey.p; ctx.p->lock = prof_ctx_mutex_choose(); /* * Set nlimbo to 1, in order to avoid a race condition * with prof_ctx_merge()/prof_ctx_destroy(). */ ctx.p->nlimbo = 1; memset(&ctx.p->cnt_merged, 0, sizeof(prof_cnt_t)); ql_new(&ctx.p->cnts_ql); if (ckh_insert(&bt2ctx, btkey.v, ctx.v)) { /* OOM. */ prof_leave(prof_tdata); idalloc(btkey.v); idalloc(ctx.v); return (NULL); } new_ctx = true; } else { /* * Increment nlimbo, in order to avoid a race condition * with prof_ctx_merge()/prof_ctx_destroy(). */ malloc_mutex_lock(ctx.p->lock); ctx.p->nlimbo++; malloc_mutex_unlock(ctx.p->lock); new_ctx = false; } prof_leave(prof_tdata); /* Link a prof_thd_cnt_t into ctx for this thread. */ if (ckh_count(&prof_tdata->bt2cnt) == PROF_TCMAX) { assert(ckh_count(&prof_tdata->bt2cnt) > 0); /* * Flush the least recently used cnt in order to keep * bt2cnt from becoming too large. */ ret.p = ql_last(&prof_tdata->lru_ql, lru_link); assert(ret.v != NULL); if (ckh_remove(&prof_tdata->bt2cnt, ret.p->ctx->bt, NULL, NULL)) assert(false); ql_remove(&prof_tdata->lru_ql, ret.p, lru_link); prof_ctx_merge(ret.p->ctx, ret.p); /* ret can now be re-used. */ } else { assert(ckh_count(&prof_tdata->bt2cnt) < PROF_TCMAX); /* Allocate and partially initialize a new cnt. */ ret.v = imalloc(sizeof(prof_thr_cnt_t)); if (ret.p == NULL) { if (new_ctx) prof_ctx_destroy(ctx.p); return (NULL); } ql_elm_new(ret.p, cnts_link); ql_elm_new(ret.p, lru_link); } /* Finish initializing ret. */ ret.p->ctx = ctx.p; ret.p->epoch = 0; memset(&ret.p->cnts, 0, sizeof(prof_cnt_t)); if (ckh_insert(&prof_tdata->bt2cnt, btkey.v, ret.v)) { if (new_ctx) prof_ctx_destroy(ctx.p); idalloc(ret.v); return (NULL); } ql_head_insert(&prof_tdata->lru_ql, ret.p, lru_link); malloc_mutex_lock(ctx.p->lock); ql_tail_insert(&ctx.p->cnts_ql, ret.p, cnts_link); ctx.p->nlimbo--; malloc_mutex_unlock(ctx.p->lock); } else { /* Move ret to the front of the LRU. */ ql_remove(&prof_tdata->lru_ql, ret.p, lru_link); ql_head_insert(&prof_tdata->lru_ql, ret.p, lru_link); } return (ret.p); } static bool prof_flush(bool propagate_err) { bool ret = false; ssize_t err; cassert(config_prof); err = write(prof_dump_fd, prof_dump_buf, prof_dump_buf_end); if (err == -1) { if (propagate_err == false) { malloc_write(": write() failed during heap " "profile flush\n"); if (opt_abort) abort(); } ret = true; } prof_dump_buf_end = 0; return (ret); } static bool prof_write(bool propagate_err, const char *s) { unsigned i, slen, n; cassert(config_prof); i = 0; slen = strlen(s); while (i < slen) { /* Flush the buffer if it is full. */ if (prof_dump_buf_end == PROF_DUMP_BUFSIZE) if (prof_flush(propagate_err) && propagate_err) return (true); if (prof_dump_buf_end + slen <= PROF_DUMP_BUFSIZE) { /* Finish writing. */ n = slen - i; } else { /* Write as much of s as will fit. */ n = PROF_DUMP_BUFSIZE - prof_dump_buf_end; } memcpy(&prof_dump_buf[prof_dump_buf_end], &s[i], n); prof_dump_buf_end += n; i += n; } return (false); } JEMALLOC_ATTR(format(printf, 2, 3)) static bool prof_printf(bool propagate_err, const char *format, ...) { bool ret; va_list ap; char buf[PROF_PRINTF_BUFSIZE]; va_start(ap, format); malloc_vsnprintf(buf, sizeof(buf), format, ap); va_end(ap); ret = prof_write(propagate_err, buf); return (ret); } static void prof_ctx_sum(prof_ctx_t *ctx, prof_cnt_t *cnt_all, size_t *leak_nctx) { prof_thr_cnt_t *thr_cnt; prof_cnt_t tcnt; cassert(config_prof); malloc_mutex_lock(ctx->lock); memcpy(&ctx->cnt_summed, &ctx->cnt_merged, sizeof(prof_cnt_t)); ql_foreach(thr_cnt, &ctx->cnts_ql, cnts_link) { volatile unsigned *epoch = &thr_cnt->epoch; while (true) { unsigned epoch0 = *epoch; /* Make sure epoch is even. */ if (epoch0 & 1U) continue; memcpy(&tcnt, &thr_cnt->cnts, sizeof(prof_cnt_t)); /* Terminate if epoch didn't change while reading. */ if (*epoch == epoch0) break; } ctx->cnt_summed.curobjs += tcnt.curobjs; ctx->cnt_summed.curbytes += tcnt.curbytes; if (opt_prof_accum) { ctx->cnt_summed.accumobjs += tcnt.accumobjs; ctx->cnt_summed.accumbytes += tcnt.accumbytes; } } if (ctx->cnt_summed.curobjs != 0) (*leak_nctx)++; /* Add to cnt_all. */ cnt_all->curobjs += ctx->cnt_summed.curobjs; cnt_all->curbytes += ctx->cnt_summed.curbytes; if (opt_prof_accum) { cnt_all->accumobjs += ctx->cnt_summed.accumobjs; cnt_all->accumbytes += ctx->cnt_summed.accumbytes; } malloc_mutex_unlock(ctx->lock); } static void prof_ctx_destroy(prof_ctx_t *ctx) { prof_tdata_t *prof_tdata; cassert(config_prof); /* * Check that ctx is still unused by any thread cache before destroying * it. prof_lookup() increments ctx->nlimbo in order to avoid a race * condition with this function, as does prof_ctx_merge() in order to * avoid a race between the main body of prof_ctx_merge() and entry * into this function. */ prof_tdata = *prof_tdata_tsd_get(); assert((uintptr_t)prof_tdata > (uintptr_t)PROF_TDATA_STATE_MAX); prof_enter(prof_tdata); malloc_mutex_lock(ctx->lock); if (ql_first(&ctx->cnts_ql) == NULL && ctx->cnt_merged.curobjs == 0 && ctx->nlimbo == 1) { assert(ctx->cnt_merged.curbytes == 0); assert(ctx->cnt_merged.accumobjs == 0); assert(ctx->cnt_merged.accumbytes == 0); /* Remove ctx from bt2ctx. */ if (ckh_remove(&bt2ctx, ctx->bt, NULL, NULL)) assert(false); prof_leave(prof_tdata); /* Destroy ctx. */ malloc_mutex_unlock(ctx->lock); bt_destroy(ctx->bt); idalloc(ctx); } else { /* * Compensate for increment in prof_ctx_merge() or * prof_lookup(). */ ctx->nlimbo--; malloc_mutex_unlock(ctx->lock); prof_leave(prof_tdata); } } static void prof_ctx_merge(prof_ctx_t *ctx, prof_thr_cnt_t *cnt) { bool destroy; cassert(config_prof); /* Merge cnt stats and detach from ctx. */ malloc_mutex_lock(ctx->lock); ctx->cnt_merged.curobjs += cnt->cnts.curobjs; ctx->cnt_merged.curbytes += cnt->cnts.curbytes; ctx->cnt_merged.accumobjs += cnt->cnts.accumobjs; ctx->cnt_merged.accumbytes += cnt->cnts.accumbytes; ql_remove(&ctx->cnts_ql, cnt, cnts_link); if (opt_prof_accum == false && ql_first(&ctx->cnts_ql) == NULL && ctx->cnt_merged.curobjs == 0 && ctx->nlimbo == 0) { /* * Increment ctx->nlimbo in order to keep another thread from * winning the race to destroy ctx while this one has ctx->lock * dropped. Without this, it would be possible for another * thread to: * * 1) Sample an allocation associated with ctx. * 2) Deallocate the sampled object. * 3) Successfully prof_ctx_destroy(ctx). * * The result would be that ctx no longer exists by the time * this thread accesses it in prof_ctx_destroy(). */ ctx->nlimbo++; destroy = true; } else destroy = false; malloc_mutex_unlock(ctx->lock); if (destroy) prof_ctx_destroy(ctx); } static bool prof_dump_ctx(bool propagate_err, prof_ctx_t *ctx, prof_bt_t *bt) { unsigned i; cassert(config_prof); /* * Current statistics can sum to 0 as a result of unmerged per thread * statistics. Additionally, interval- and growth-triggered dumps can * occur between the time a ctx is created and when its statistics are * filled in. Avoid dumping any ctx that is an artifact of either * implementation detail. */ if ((opt_prof_accum == false && ctx->cnt_summed.curobjs == 0) || (opt_prof_accum && ctx->cnt_summed.accumobjs == 0)) { assert(ctx->cnt_summed.curobjs == 0); assert(ctx->cnt_summed.curbytes == 0); assert(ctx->cnt_summed.accumobjs == 0); assert(ctx->cnt_summed.accumbytes == 0); return (false); } if (prof_printf(propagate_err, "%"PRId64": %"PRId64 " [%"PRIu64": %"PRIu64"] @", ctx->cnt_summed.curobjs, ctx->cnt_summed.curbytes, ctx->cnt_summed.accumobjs, ctx->cnt_summed.accumbytes)) return (true); for (i = 0; i < bt->len; i++) { if (prof_printf(propagate_err, " %#"PRIxPTR, (uintptr_t)bt->vec[i])) return (true); } if (prof_write(propagate_err, "\n")) return (true); return (false); } static bool prof_dump_maps(bool propagate_err) { int mfd; char filename[PATH_MAX + 1]; cassert(config_prof); malloc_snprintf(filename, sizeof(filename), "/proc/%d/maps", (int)getpid()); mfd = open(filename, O_RDONLY); if (mfd != -1) { ssize_t nread; if (prof_write(propagate_err, "\nMAPPED_LIBRARIES:\n") && propagate_err) return (true); nread = 0; do { prof_dump_buf_end += nread; if (prof_dump_buf_end == PROF_DUMP_BUFSIZE) { /* Make space in prof_dump_buf before read(). */ if (prof_flush(propagate_err) && propagate_err) return (true); } nread = read(mfd, &prof_dump_buf[prof_dump_buf_end], PROF_DUMP_BUFSIZE - prof_dump_buf_end); } while (nread > 0); close(mfd); } else return (true); return (false); } static bool prof_dump(bool propagate_err, const char *filename, bool leakcheck) { prof_tdata_t *prof_tdata; prof_cnt_t cnt_all; size_t tabind; union { prof_bt_t *p; void *v; } bt; union { prof_ctx_t *p; void *v; } ctx; size_t leak_nctx; cassert(config_prof); prof_tdata = prof_tdata_get(); if ((uintptr_t)prof_tdata <= (uintptr_t)PROF_TDATA_STATE_MAX) return (true); prof_enter(prof_tdata); prof_dump_fd = creat(filename, 0644); if (prof_dump_fd == -1) { if (propagate_err == false) { malloc_printf( ": creat(\"%s\"), 0644) failed\n", filename); if (opt_abort) abort(); } goto label_error; } /* Merge per thread profile stats, and sum them in cnt_all. */ memset(&cnt_all, 0, sizeof(prof_cnt_t)); leak_nctx = 0; for (tabind = 0; ckh_iter(&bt2ctx, &tabind, NULL, &ctx.v) == false;) prof_ctx_sum(ctx.p, &cnt_all, &leak_nctx); /* Dump profile header. */ if (opt_lg_prof_sample == 0) { if (prof_printf(propagate_err, "heap profile: %"PRId64": %"PRId64 " [%"PRIu64": %"PRIu64"] @ heapprofile\n", cnt_all.curobjs, cnt_all.curbytes, cnt_all.accumobjs, cnt_all.accumbytes)) goto label_error; } else { if (prof_printf(propagate_err, "heap profile: %"PRId64": %"PRId64 " [%"PRIu64": %"PRIu64"] @ heap_v2/%"PRIu64"\n", cnt_all.curobjs, cnt_all.curbytes, cnt_all.accumobjs, cnt_all.accumbytes, ((uint64_t)1U << opt_lg_prof_sample))) goto label_error; } /* Dump per ctx profile stats. */ for (tabind = 0; ckh_iter(&bt2ctx, &tabind, &bt.v, &ctx.v) == false;) { if (prof_dump_ctx(propagate_err, ctx.p, bt.p)) goto label_error; } /* Dump /proc//maps if possible. */ if (prof_dump_maps(propagate_err)) goto label_error; if (prof_flush(propagate_err)) goto label_error; close(prof_dump_fd); prof_leave(prof_tdata); if (leakcheck && cnt_all.curbytes != 0) { malloc_printf(": Leak summary: %"PRId64" byte%s, %" PRId64" object%s, %zu context%s\n", cnt_all.curbytes, (cnt_all.curbytes != 1) ? "s" : "", cnt_all.curobjs, (cnt_all.curobjs != 1) ? "s" : "", leak_nctx, (leak_nctx != 1) ? "s" : ""); malloc_printf( ": Run pprof on \"%s\" for leak detail\n", filename); } return (false); label_error: prof_leave(prof_tdata); return (true); } #define DUMP_FILENAME_BUFSIZE (PATH_MAX + 1) static void prof_dump_filename(char *filename, char v, int64_t vseq) { cassert(config_prof); if (vseq != UINT64_C(0xffffffffffffffff)) { /* "...v.heap" */ malloc_snprintf(filename, DUMP_FILENAME_BUFSIZE, "%s.%d.%"PRIu64".%c%"PRId64".heap", opt_prof_prefix, (int)getpid(), prof_dump_seq, v, vseq); } else { /* "....heap" */ malloc_snprintf(filename, DUMP_FILENAME_BUFSIZE, "%s.%d.%"PRIu64".%c.heap", opt_prof_prefix, (int)getpid(), prof_dump_seq, v); } prof_dump_seq++; } static void prof_fdump(void) { char filename[DUMP_FILENAME_BUFSIZE]; cassert(config_prof); if (prof_booted == false) return; if (opt_prof_final && opt_prof_prefix[0] != '\0') { malloc_mutex_lock(&prof_dump_seq_mtx); prof_dump_filename(filename, 'f', UINT64_C(0xffffffffffffffff)); malloc_mutex_unlock(&prof_dump_seq_mtx); prof_dump(false, filename, opt_prof_leak); } } void prof_idump(void) { prof_tdata_t *prof_tdata; char filename[PATH_MAX + 1]; cassert(config_prof); if (prof_booted == false) return; /* * Don't call prof_tdata_get() here, because it could cause recursive * allocation. */ prof_tdata = *prof_tdata_tsd_get(); if ((uintptr_t)prof_tdata <= (uintptr_t)PROF_TDATA_STATE_MAX) return; if (prof_tdata->enq) { prof_tdata->enq_idump = true; return; } if (opt_prof_prefix[0] != '\0') { malloc_mutex_lock(&prof_dump_seq_mtx); prof_dump_filename(filename, 'i', prof_dump_iseq); prof_dump_iseq++; malloc_mutex_unlock(&prof_dump_seq_mtx); prof_dump(false, filename, false); } } bool prof_mdump(const char *filename) { char filename_buf[DUMP_FILENAME_BUFSIZE]; cassert(config_prof); if (opt_prof == false || prof_booted == false) return (true); if (filename == NULL) { /* No filename specified, so automatically generate one. */ if (opt_prof_prefix[0] == '\0') return (true); malloc_mutex_lock(&prof_dump_seq_mtx); prof_dump_filename(filename_buf, 'm', prof_dump_mseq); prof_dump_mseq++; malloc_mutex_unlock(&prof_dump_seq_mtx); filename = filename_buf; } return (prof_dump(true, filename, false)); } void prof_gdump(void) { prof_tdata_t *prof_tdata; char filename[DUMP_FILENAME_BUFSIZE]; cassert(config_prof); if (prof_booted == false) return; /* * Don't call prof_tdata_get() here, because it could cause recursive * allocation. */ prof_tdata = *prof_tdata_tsd_get(); if ((uintptr_t)prof_tdata <= (uintptr_t)PROF_TDATA_STATE_MAX) return; if (prof_tdata->enq) { prof_tdata->enq_gdump = true; return; } if (opt_prof_prefix[0] != '\0') { malloc_mutex_lock(&prof_dump_seq_mtx); prof_dump_filename(filename, 'u', prof_dump_useq); prof_dump_useq++; malloc_mutex_unlock(&prof_dump_seq_mtx); prof_dump(false, filename, false); } } static void prof_bt_hash(const void *key, unsigned minbits, size_t *hash1, size_t *hash2) { size_t ret1, ret2; uint64_t h; prof_bt_t *bt = (prof_bt_t *)key; cassert(config_prof); assert(minbits <= 32 || (SIZEOF_PTR == 8 && minbits <= 64)); assert(hash1 != NULL); assert(hash2 != NULL); h = hash(bt->vec, bt->len * sizeof(void *), UINT64_C(0x94122f335b332aea)); if (minbits <= 32) { /* * Avoid doing multiple hashes, since a single hash provides * enough bits. */ ret1 = h & ZU(0xffffffffU); ret2 = h >> 32; } else { ret1 = h; ret2 = hash(bt->vec, bt->len * sizeof(void *), UINT64_C(0x8432a476666bbc13)); } *hash1 = ret1; *hash2 = ret2; } static bool prof_bt_keycomp(const void *k1, const void *k2) { const prof_bt_t *bt1 = (prof_bt_t *)k1; const prof_bt_t *bt2 = (prof_bt_t *)k2; cassert(config_prof); if (bt1->len != bt2->len) return (false); return (memcmp(bt1->vec, bt2->vec, bt1->len * sizeof(void *)) == 0); } static malloc_mutex_t * prof_ctx_mutex_choose(void) { unsigned nctxs = atomic_add_u(&cum_ctxs, 1); return (&ctx_locks[(nctxs - 1) % PROF_NCTX_LOCKS]); } prof_tdata_t * prof_tdata_init(void) { prof_tdata_t *prof_tdata; cassert(config_prof); /* Initialize an empty cache for this thread. */ prof_tdata = (prof_tdata_t *)imalloc(sizeof(prof_tdata_t)); if (prof_tdata == NULL) return (NULL); if (ckh_new(&prof_tdata->bt2cnt, PROF_CKH_MINITEMS, prof_bt_hash, prof_bt_keycomp)) { idalloc(prof_tdata); return (NULL); } ql_new(&prof_tdata->lru_ql); prof_tdata->vec = imalloc(sizeof(void *) * PROF_BT_MAX); if (prof_tdata->vec == NULL) { ckh_delete(&prof_tdata->bt2cnt); idalloc(prof_tdata); return (NULL); } prof_tdata->prng_state = 0; prof_tdata->threshold = 0; prof_tdata->accum = 0; prof_tdata->enq = false; prof_tdata->enq_idump = false; prof_tdata->enq_gdump = false; prof_tdata_tsd_set(&prof_tdata); return (prof_tdata); } void prof_tdata_cleanup(void *arg) { prof_thr_cnt_t *cnt; prof_tdata_t *prof_tdata = *(prof_tdata_t **)arg; cassert(config_prof); if (prof_tdata == PROF_TDATA_STATE_REINCARNATED) { /* * Another destructor deallocated memory after this destructor * was called. Reset prof_tdata to PROF_TDATA_STATE_PURGATORY * in order to receive another callback. */ prof_tdata = PROF_TDATA_STATE_PURGATORY; prof_tdata_tsd_set(&prof_tdata); } else if (prof_tdata == PROF_TDATA_STATE_PURGATORY) { /* * The previous time this destructor was called, we set the key * to PROF_TDATA_STATE_PURGATORY so that other destructors * wouldn't cause re-creation of the prof_tdata. This time, do * nothing, so that the destructor will not be called again. */ } else if (prof_tdata != NULL) { /* * Delete the hash table. All of its contents can still be * iterated over via the LRU. */ ckh_delete(&prof_tdata->bt2cnt); /* * Iteratively merge cnt's into the global stats and delete * them. */ while ((cnt = ql_last(&prof_tdata->lru_ql, lru_link)) != NULL) { ql_remove(&prof_tdata->lru_ql, cnt, lru_link); prof_ctx_merge(cnt->ctx, cnt); idalloc(cnt); } idalloc(prof_tdata->vec); idalloc(prof_tdata); prof_tdata = PROF_TDATA_STATE_PURGATORY; prof_tdata_tsd_set(&prof_tdata); } } void prof_boot0(void) { cassert(config_prof); memcpy(opt_prof_prefix, PROF_PREFIX_DEFAULT, sizeof(PROF_PREFIX_DEFAULT)); } void prof_boot1(void) { cassert(config_prof); /* * opt_prof and prof_promote must be in their final state before any * arenas are initialized, so this function must be executed early. */ if (opt_prof_leak && opt_prof == false) { /* * Enable opt_prof, but in such a way that profiles are never * automatically dumped. */ opt_prof = true; opt_prof_gdump = false; prof_interval = 0; } else if (opt_prof) { if (opt_lg_prof_interval >= 0) { prof_interval = (((uint64_t)1U) << opt_lg_prof_interval); } else prof_interval = 0; } prof_promote = (opt_prof && opt_lg_prof_sample > LG_PAGE); } bool prof_boot2(void) { cassert(config_prof); if (opt_prof) { unsigned i; if (ckh_new(&bt2ctx, PROF_CKH_MINITEMS, prof_bt_hash, prof_bt_keycomp)) return (true); if (malloc_mutex_init(&bt2ctx_mtx)) return (true); if (prof_tdata_tsd_boot()) { malloc_write( ": Error in pthread_key_create()\n"); abort(); } if (malloc_mutex_init(&prof_dump_seq_mtx)) return (true); if (atexit(prof_fdump) != 0) { malloc_write(": Error in atexit()\n"); if (opt_abort) abort(); } ctx_locks = (malloc_mutex_t *)base_alloc(PROF_NCTX_LOCKS * sizeof(malloc_mutex_t)); if (ctx_locks == NULL) return (true); for (i = 0; i < PROF_NCTX_LOCKS; i++) { if (malloc_mutex_init(&ctx_locks[i])) return (true); } } #ifdef JEMALLOC_PROF_LIBGCC /* * Cause the backtracing machinery to allocate its internal state * before enabling profiling. */ _Unwind_Backtrace(prof_unwind_init_callback, NULL); #endif prof_booted = true; return (false); } void prof_prefork(void) { if (opt_prof) { unsigned i; malloc_mutex_lock(&bt2ctx_mtx); malloc_mutex_lock(&prof_dump_seq_mtx); for (i = 0; i < PROF_NCTX_LOCKS; i++) malloc_mutex_lock(&ctx_locks[i]); } } void prof_postfork_parent(void) { if (opt_prof) { unsigned i; for (i = 0; i < PROF_NCTX_LOCKS; i++) malloc_mutex_postfork_parent(&ctx_locks[i]); malloc_mutex_postfork_parent(&prof_dump_seq_mtx); malloc_mutex_postfork_parent(&bt2ctx_mtx); } } void prof_postfork_child(void) { if (opt_prof) { unsigned i; for (i = 0; i < PROF_NCTX_LOCKS; i++) malloc_mutex_postfork_child(&ctx_locks[i]); malloc_mutex_postfork_child(&prof_dump_seq_mtx); malloc_mutex_postfork_child(&bt2ctx_mtx); } } /******************************************************************************/ redis-2.6.16/deps/jemalloc/src/quarantine.c000066400000000000000000000136011220734223100205340ustar00rootroot00000000000000#include "jemalloc/internal/jemalloc_internal.h" /* * quarantine pointers close to NULL are used to encode state information that * is used for cleaning up during thread shutdown. */ #define QUARANTINE_STATE_REINCARNATED ((quarantine_t *)(uintptr_t)1) #define QUARANTINE_STATE_PURGATORY ((quarantine_t *)(uintptr_t)2) #define QUARANTINE_STATE_MAX QUARANTINE_STATE_PURGATORY /******************************************************************************/ /* Data. */ typedef struct quarantine_obj_s quarantine_obj_t; typedef struct quarantine_s quarantine_t; struct quarantine_obj_s { void *ptr; size_t usize; }; struct quarantine_s { size_t curbytes; size_t curobjs; size_t first; #define LG_MAXOBJS_INIT 10 size_t lg_maxobjs; quarantine_obj_t objs[1]; /* Dynamically sized ring buffer. */ }; static void quarantine_cleanup(void *arg); malloc_tsd_data(static, quarantine, quarantine_t *, NULL) malloc_tsd_funcs(JEMALLOC_INLINE, quarantine, quarantine_t *, NULL, quarantine_cleanup) /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static quarantine_t *quarantine_init(size_t lg_maxobjs); static quarantine_t *quarantine_grow(quarantine_t *quarantine); static void quarantine_drain(quarantine_t *quarantine, size_t upper_bound); /******************************************************************************/ static quarantine_t * quarantine_init(size_t lg_maxobjs) { quarantine_t *quarantine; quarantine = (quarantine_t *)imalloc(offsetof(quarantine_t, objs) + ((ZU(1) << lg_maxobjs) * sizeof(quarantine_obj_t))); if (quarantine == NULL) return (NULL); quarantine->curbytes = 0; quarantine->curobjs = 0; quarantine->first = 0; quarantine->lg_maxobjs = lg_maxobjs; quarantine_tsd_set(&quarantine); return (quarantine); } static quarantine_t * quarantine_grow(quarantine_t *quarantine) { quarantine_t *ret; ret = quarantine_init(quarantine->lg_maxobjs + 1); if (ret == NULL) return (quarantine); ret->curbytes = quarantine->curbytes; ret->curobjs = quarantine->curobjs; if (quarantine->first + quarantine->curobjs <= (ZU(1) << quarantine->lg_maxobjs)) { /* objs ring buffer data are contiguous. */ memcpy(ret->objs, &quarantine->objs[quarantine->first], quarantine->curobjs * sizeof(quarantine_obj_t)); } else { /* objs ring buffer data wrap around. */ size_t ncopy_a = (ZU(1) << quarantine->lg_maxobjs) - quarantine->first; size_t ncopy_b = quarantine->curobjs - ncopy_a; memcpy(ret->objs, &quarantine->objs[quarantine->first], ncopy_a * sizeof(quarantine_obj_t)); memcpy(&ret->objs[ncopy_a], quarantine->objs, ncopy_b * sizeof(quarantine_obj_t)); } return (ret); } static void quarantine_drain(quarantine_t *quarantine, size_t upper_bound) { while (quarantine->curbytes > upper_bound && quarantine->curobjs > 0) { quarantine_obj_t *obj = &quarantine->objs[quarantine->first]; assert(obj->usize == isalloc(obj->ptr, config_prof)); idalloc(obj->ptr); quarantine->curbytes -= obj->usize; quarantine->curobjs--; quarantine->first = (quarantine->first + 1) & ((ZU(1) << quarantine->lg_maxobjs) - 1); } } void quarantine(void *ptr) { quarantine_t *quarantine; size_t usize = isalloc(ptr, config_prof); cassert(config_fill); assert(opt_quarantine); quarantine = *quarantine_tsd_get(); if ((uintptr_t)quarantine <= (uintptr_t)QUARANTINE_STATE_MAX) { if (quarantine == NULL) { if ((quarantine = quarantine_init(LG_MAXOBJS_INIT)) == NULL) { idalloc(ptr); return; } } else { if (quarantine == QUARANTINE_STATE_PURGATORY) { /* * Make a note that quarantine() was called * after quarantine_cleanup() was called. */ quarantine = QUARANTINE_STATE_REINCARNATED; quarantine_tsd_set(&quarantine); } idalloc(ptr); return; } } /* * Drain one or more objects if the quarantine size limit would be * exceeded by appending ptr. */ if (quarantine->curbytes + usize > opt_quarantine) { size_t upper_bound = (opt_quarantine >= usize) ? opt_quarantine - usize : 0; quarantine_drain(quarantine, upper_bound); } /* Grow the quarantine ring buffer if it's full. */ if (quarantine->curobjs == (ZU(1) << quarantine->lg_maxobjs)) quarantine = quarantine_grow(quarantine); /* quarantine_grow() must free a slot if it fails to grow. */ assert(quarantine->curobjs < (ZU(1) << quarantine->lg_maxobjs)); /* Append ptr if its size doesn't exceed the quarantine size. */ if (quarantine->curbytes + usize <= opt_quarantine) { size_t offset = (quarantine->first + quarantine->curobjs) & ((ZU(1) << quarantine->lg_maxobjs) - 1); quarantine_obj_t *obj = &quarantine->objs[offset]; obj->ptr = ptr; obj->usize = usize; quarantine->curbytes += usize; quarantine->curobjs++; if (opt_junk) memset(ptr, 0x5a, usize); } else { assert(quarantine->curbytes == 0); idalloc(ptr); } } static void quarantine_cleanup(void *arg) { quarantine_t *quarantine = *(quarantine_t **)arg; if (quarantine == QUARANTINE_STATE_REINCARNATED) { /* * Another destructor deallocated memory after this destructor * was called. Reset quarantine to QUARANTINE_STATE_PURGATORY * in order to receive another callback. */ quarantine = QUARANTINE_STATE_PURGATORY; quarantine_tsd_set(&quarantine); } else if (quarantine == QUARANTINE_STATE_PURGATORY) { /* * The previous time this destructor was called, we set the key * to QUARANTINE_STATE_PURGATORY so that other destructors * wouldn't cause re-creation of the quarantine. This time, do * nothing, so that the destructor will not be called again. */ } else if (quarantine != NULL) { quarantine_drain(quarantine, 0); idalloc(quarantine); quarantine = QUARANTINE_STATE_PURGATORY; quarantine_tsd_set(&quarantine); } } bool quarantine_boot(void) { cassert(config_fill); if (quarantine_tsd_boot()) return (true); return (false); } redis-2.6.16/deps/jemalloc/src/rtree.c000066400000000000000000000026331220734223100175110ustar00rootroot00000000000000#define JEMALLOC_RTREE_C_ #include "jemalloc/internal/jemalloc_internal.h" rtree_t * rtree_new(unsigned bits) { rtree_t *ret; unsigned bits_per_level, height, i; bits_per_level = ffs(pow2_ceil((RTREE_NODESIZE / sizeof(void *)))) - 1; height = bits / bits_per_level; if (height * bits_per_level != bits) height++; assert(height * bits_per_level >= bits); ret = (rtree_t*)base_alloc(offsetof(rtree_t, level2bits) + (sizeof(unsigned) * height)); if (ret == NULL) return (NULL); memset(ret, 0, offsetof(rtree_t, level2bits) + (sizeof(unsigned) * height)); if (malloc_mutex_init(&ret->mutex)) { /* Leak the rtree. */ return (NULL); } ret->height = height; if (bits_per_level * height > bits) ret->level2bits[0] = bits % bits_per_level; else ret->level2bits[0] = bits_per_level; for (i = 1; i < height; i++) ret->level2bits[i] = bits_per_level; ret->root = (void**)base_alloc(sizeof(void *) << ret->level2bits[0]); if (ret->root == NULL) { /* * We leak the rtree here, since there's no generic base * deallocation. */ return (NULL); } memset(ret->root, 0, sizeof(void *) << ret->level2bits[0]); return (ret); } void rtree_prefork(rtree_t *rtree) { malloc_mutex_prefork(&rtree->mutex); } void rtree_postfork_parent(rtree_t *rtree) { malloc_mutex_postfork_parent(&rtree->mutex); } void rtree_postfork_child(rtree_t *rtree) { malloc_mutex_postfork_child(&rtree->mutex); } redis-2.6.16/deps/jemalloc/src/stats.c000066400000000000000000000410361220734223100175260ustar00rootroot00000000000000#define JEMALLOC_STATS_C_ #include "jemalloc/internal/jemalloc_internal.h" #define CTL_GET(n, v, t) do { \ size_t sz = sizeof(t); \ xmallctl(n, v, &sz, NULL, 0); \ } while (0) #define CTL_I_GET(n, v, t) do { \ size_t mib[6]; \ size_t miblen = sizeof(mib) / sizeof(size_t); \ size_t sz = sizeof(t); \ xmallctlnametomib(n, mib, &miblen); \ mib[2] = i; \ xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \ } while (0) #define CTL_J_GET(n, v, t) do { \ size_t mib[6]; \ size_t miblen = sizeof(mib) / sizeof(size_t); \ size_t sz = sizeof(t); \ xmallctlnametomib(n, mib, &miblen); \ mib[2] = j; \ xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \ } while (0) #define CTL_IJ_GET(n, v, t) do { \ size_t mib[6]; \ size_t miblen = sizeof(mib) / sizeof(size_t); \ size_t sz = sizeof(t); \ xmallctlnametomib(n, mib, &miblen); \ mib[2] = i; \ mib[4] = j; \ xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \ } while (0) /******************************************************************************/ /* Data. */ bool opt_stats_print = false; size_t stats_cactive = 0; /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static void stats_arena_bins_print(void (*write_cb)(void *, const char *), void *cbopaque, unsigned i); static void stats_arena_lruns_print(void (*write_cb)(void *, const char *), void *cbopaque, unsigned i); static void stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque, unsigned i, bool bins, bool large); /******************************************************************************/ static void stats_arena_bins_print(void (*write_cb)(void *, const char *), void *cbopaque, unsigned i) { size_t page; bool config_tcache; unsigned nbins, j, gap_start; CTL_GET("arenas.page", &page, size_t); CTL_GET("config.tcache", &config_tcache, bool); if (config_tcache) { malloc_cprintf(write_cb, cbopaque, "bins: bin size regs pgs allocated nmalloc" " ndalloc nrequests nfills nflushes" " newruns reruns curruns\n"); } else { malloc_cprintf(write_cb, cbopaque, "bins: bin size regs pgs allocated nmalloc" " ndalloc newruns reruns curruns\n"); } CTL_GET("arenas.nbins", &nbins, unsigned); for (j = 0, gap_start = UINT_MAX; j < nbins; j++) { uint64_t nruns; CTL_IJ_GET("stats.arenas.0.bins.0.nruns", &nruns, uint64_t); if (nruns == 0) { if (gap_start == UINT_MAX) gap_start = j; } else { size_t reg_size, run_size, allocated; uint32_t nregs; uint64_t nmalloc, ndalloc, nrequests, nfills, nflushes; uint64_t reruns; size_t curruns; if (gap_start != UINT_MAX) { if (j > gap_start + 1) { /* Gap of more than one size class. */ malloc_cprintf(write_cb, cbopaque, "[%u..%u]\n", gap_start, j - 1); } else { /* Gap of one size class. */ malloc_cprintf(write_cb, cbopaque, "[%u]\n", gap_start); } gap_start = UINT_MAX; } CTL_J_GET("arenas.bin.0.size", ®_size, size_t); CTL_J_GET("arenas.bin.0.nregs", &nregs, uint32_t); CTL_J_GET("arenas.bin.0.run_size", &run_size, size_t); CTL_IJ_GET("stats.arenas.0.bins.0.allocated", &allocated, size_t); CTL_IJ_GET("stats.arenas.0.bins.0.nmalloc", &nmalloc, uint64_t); CTL_IJ_GET("stats.arenas.0.bins.0.ndalloc", &ndalloc, uint64_t); if (config_tcache) { CTL_IJ_GET("stats.arenas.0.bins.0.nrequests", &nrequests, uint64_t); CTL_IJ_GET("stats.arenas.0.bins.0.nfills", &nfills, uint64_t); CTL_IJ_GET("stats.arenas.0.bins.0.nflushes", &nflushes, uint64_t); } CTL_IJ_GET("stats.arenas.0.bins.0.nreruns", &reruns, uint64_t); CTL_IJ_GET("stats.arenas.0.bins.0.curruns", &curruns, size_t); if (config_tcache) { malloc_cprintf(write_cb, cbopaque, "%13u %5zu %4u %3zu %12zu %12"PRIu64 " %12"PRIu64" %12"PRIu64" %12"PRIu64 " %12"PRIu64" %12"PRIu64" %12"PRIu64 " %12zu\n", j, reg_size, nregs, run_size / page, allocated, nmalloc, ndalloc, nrequests, nfills, nflushes, nruns, reruns, curruns); } else { malloc_cprintf(write_cb, cbopaque, "%13u %5zu %4u %3zu %12zu %12"PRIu64 " %12"PRIu64" %12"PRIu64" %12"PRIu64 " %12zu\n", j, reg_size, nregs, run_size / page, allocated, nmalloc, ndalloc, nruns, reruns, curruns); } } } if (gap_start != UINT_MAX) { if (j > gap_start + 1) { /* Gap of more than one size class. */ malloc_cprintf(write_cb, cbopaque, "[%u..%u]\n", gap_start, j - 1); } else { /* Gap of one size class. */ malloc_cprintf(write_cb, cbopaque, "[%u]\n", gap_start); } } } static void stats_arena_lruns_print(void (*write_cb)(void *, const char *), void *cbopaque, unsigned i) { size_t page, nlruns, j; ssize_t gap_start; CTL_GET("arenas.page", &page, size_t); malloc_cprintf(write_cb, cbopaque, "large: size pages nmalloc ndalloc nrequests" " curruns\n"); CTL_GET("arenas.nlruns", &nlruns, size_t); for (j = 0, gap_start = -1; j < nlruns; j++) { uint64_t nmalloc, ndalloc, nrequests; size_t run_size, curruns; CTL_IJ_GET("stats.arenas.0.lruns.0.nmalloc", &nmalloc, uint64_t); CTL_IJ_GET("stats.arenas.0.lruns.0.ndalloc", &ndalloc, uint64_t); CTL_IJ_GET("stats.arenas.0.lruns.0.nrequests", &nrequests, uint64_t); if (nrequests == 0) { if (gap_start == -1) gap_start = j; } else { CTL_J_GET("arenas.lrun.0.size", &run_size, size_t); CTL_IJ_GET("stats.arenas.0.lruns.0.curruns", &curruns, size_t); if (gap_start != -1) { malloc_cprintf(write_cb, cbopaque, "[%zu]\n", j - gap_start); gap_start = -1; } malloc_cprintf(write_cb, cbopaque, "%13zu %5zu %12"PRIu64" %12"PRIu64" %12"PRIu64 " %12zu\n", run_size, run_size / page, nmalloc, ndalloc, nrequests, curruns); } } if (gap_start != -1) malloc_cprintf(write_cb, cbopaque, "[%zu]\n", j - gap_start); } static void stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque, unsigned i, bool bins, bool large) { unsigned nthreads; const char *dss; size_t page, pactive, pdirty, mapped; uint64_t npurge, nmadvise, purged; size_t small_allocated; uint64_t small_nmalloc, small_ndalloc, small_nrequests; size_t large_allocated; uint64_t large_nmalloc, large_ndalloc, large_nrequests; CTL_GET("arenas.page", &page, size_t); CTL_I_GET("stats.arenas.0.nthreads", &nthreads, unsigned); malloc_cprintf(write_cb, cbopaque, "assigned threads: %u\n", nthreads); CTL_I_GET("stats.arenas.0.dss", &dss, const char *); malloc_cprintf(write_cb, cbopaque, "dss allocation precedence: %s\n", dss); CTL_I_GET("stats.arenas.0.pactive", &pactive, size_t); CTL_I_GET("stats.arenas.0.pdirty", &pdirty, size_t); CTL_I_GET("stats.arenas.0.npurge", &npurge, uint64_t); CTL_I_GET("stats.arenas.0.nmadvise", &nmadvise, uint64_t); CTL_I_GET("stats.arenas.0.purged", &purged, uint64_t); malloc_cprintf(write_cb, cbopaque, "dirty pages: %zu:%zu active:dirty, %"PRIu64" sweep%s," " %"PRIu64" madvise%s, %"PRIu64" purged\n", pactive, pdirty, npurge, npurge == 1 ? "" : "s", nmadvise, nmadvise == 1 ? "" : "s", purged); malloc_cprintf(write_cb, cbopaque, " allocated nmalloc ndalloc nrequests\n"); CTL_I_GET("stats.arenas.0.small.allocated", &small_allocated, size_t); CTL_I_GET("stats.arenas.0.small.nmalloc", &small_nmalloc, uint64_t); CTL_I_GET("stats.arenas.0.small.ndalloc", &small_ndalloc, uint64_t); CTL_I_GET("stats.arenas.0.small.nrequests", &small_nrequests, uint64_t); malloc_cprintf(write_cb, cbopaque, "small: %12zu %12"PRIu64" %12"PRIu64" %12"PRIu64"\n", small_allocated, small_nmalloc, small_ndalloc, small_nrequests); CTL_I_GET("stats.arenas.0.large.allocated", &large_allocated, size_t); CTL_I_GET("stats.arenas.0.large.nmalloc", &large_nmalloc, uint64_t); CTL_I_GET("stats.arenas.0.large.ndalloc", &large_ndalloc, uint64_t); CTL_I_GET("stats.arenas.0.large.nrequests", &large_nrequests, uint64_t); malloc_cprintf(write_cb, cbopaque, "large: %12zu %12"PRIu64" %12"PRIu64" %12"PRIu64"\n", large_allocated, large_nmalloc, large_ndalloc, large_nrequests); malloc_cprintf(write_cb, cbopaque, "total: %12zu %12"PRIu64" %12"PRIu64" %12"PRIu64"\n", small_allocated + large_allocated, small_nmalloc + large_nmalloc, small_ndalloc + large_ndalloc, small_nrequests + large_nrequests); malloc_cprintf(write_cb, cbopaque, "active: %12zu\n", pactive * page); CTL_I_GET("stats.arenas.0.mapped", &mapped, size_t); malloc_cprintf(write_cb, cbopaque, "mapped: %12zu\n", mapped); if (bins) stats_arena_bins_print(write_cb, cbopaque, i); if (large) stats_arena_lruns_print(write_cb, cbopaque, i); } void stats_print(void (*write_cb)(void *, const char *), void *cbopaque, const char *opts) { int err; uint64_t epoch; size_t u64sz; bool general = true; bool merged = true; bool unmerged = true; bool bins = true; bool large = true; /* * Refresh stats, in case mallctl() was called by the application. * * Check for OOM here, since refreshing the ctl cache can trigger * allocation. In practice, none of the subsequent mallctl()-related * calls in this function will cause OOM if this one succeeds. * */ epoch = 1; u64sz = sizeof(uint64_t); err = je_mallctl("epoch", &epoch, &u64sz, &epoch, sizeof(uint64_t)); if (err != 0) { if (err == EAGAIN) { malloc_write(": Memory allocation failure in " "mallctl(\"epoch\", ...)\n"); return; } malloc_write(": Failure in mallctl(\"epoch\", " "...)\n"); abort(); } if (opts != NULL) { unsigned i; for (i = 0; opts[i] != '\0'; i++) { switch (opts[i]) { case 'g': general = false; break; case 'm': merged = false; break; case 'a': unmerged = false; break; case 'b': bins = false; break; case 'l': large = false; break; default:; } } } malloc_cprintf(write_cb, cbopaque, "___ Begin jemalloc statistics ___\n"); if (general) { int err; const char *cpv; bool bv; unsigned uv; ssize_t ssv; size_t sv, bsz, ssz, sssz, cpsz; bsz = sizeof(bool); ssz = sizeof(size_t); sssz = sizeof(ssize_t); cpsz = sizeof(const char *); CTL_GET("version", &cpv, const char *); malloc_cprintf(write_cb, cbopaque, "Version: %s\n", cpv); CTL_GET("config.debug", &bv, bool); malloc_cprintf(write_cb, cbopaque, "Assertions %s\n", bv ? "enabled" : "disabled"); #define OPT_WRITE_BOOL(n) \ if ((err = je_mallctl("opt."#n, &bv, &bsz, NULL, 0)) \ == 0) { \ malloc_cprintf(write_cb, cbopaque, \ " opt."#n": %s\n", bv ? "true" : "false"); \ } #define OPT_WRITE_SIZE_T(n) \ if ((err = je_mallctl("opt."#n, &sv, &ssz, NULL, 0)) \ == 0) { \ malloc_cprintf(write_cb, cbopaque, \ " opt."#n": %zu\n", sv); \ } #define OPT_WRITE_SSIZE_T(n) \ if ((err = je_mallctl("opt."#n, &ssv, &sssz, NULL, 0)) \ == 0) { \ malloc_cprintf(write_cb, cbopaque, \ " opt."#n": %zd\n", ssv); \ } #define OPT_WRITE_CHAR_P(n) \ if ((err = je_mallctl("opt."#n, &cpv, &cpsz, NULL, 0)) \ == 0) { \ malloc_cprintf(write_cb, cbopaque, \ " opt."#n": \"%s\"\n", cpv); \ } malloc_cprintf(write_cb, cbopaque, "Run-time option settings:\n"); OPT_WRITE_BOOL(abort) OPT_WRITE_SIZE_T(lg_chunk) OPT_WRITE_CHAR_P(dss) OPT_WRITE_SIZE_T(narenas) OPT_WRITE_SSIZE_T(lg_dirty_mult) OPT_WRITE_BOOL(stats_print) OPT_WRITE_BOOL(junk) OPT_WRITE_SIZE_T(quarantine) OPT_WRITE_BOOL(redzone) OPT_WRITE_BOOL(zero) OPT_WRITE_BOOL(utrace) OPT_WRITE_BOOL(valgrind) OPT_WRITE_BOOL(xmalloc) OPT_WRITE_BOOL(tcache) OPT_WRITE_SSIZE_T(lg_tcache_max) OPT_WRITE_BOOL(prof) OPT_WRITE_CHAR_P(prof_prefix) OPT_WRITE_BOOL(prof_active) OPT_WRITE_SSIZE_T(lg_prof_sample) OPT_WRITE_BOOL(prof_accum) OPT_WRITE_SSIZE_T(lg_prof_interval) OPT_WRITE_BOOL(prof_gdump) OPT_WRITE_BOOL(prof_final) OPT_WRITE_BOOL(prof_leak) #undef OPT_WRITE_BOOL #undef OPT_WRITE_SIZE_T #undef OPT_WRITE_SSIZE_T #undef OPT_WRITE_CHAR_P malloc_cprintf(write_cb, cbopaque, "CPUs: %u\n", ncpus); CTL_GET("arenas.narenas", &uv, unsigned); malloc_cprintf(write_cb, cbopaque, "Arenas: %u\n", uv); malloc_cprintf(write_cb, cbopaque, "Pointer size: %zu\n", sizeof(void *)); CTL_GET("arenas.quantum", &sv, size_t); malloc_cprintf(write_cb, cbopaque, "Quantum size: %zu\n", sv); CTL_GET("arenas.page", &sv, size_t); malloc_cprintf(write_cb, cbopaque, "Page size: %zu\n", sv); CTL_GET("opt.lg_dirty_mult", &ssv, ssize_t); if (ssv >= 0) { malloc_cprintf(write_cb, cbopaque, "Min active:dirty page ratio per arena: %u:1\n", (1U << ssv)); } else { malloc_cprintf(write_cb, cbopaque, "Min active:dirty page ratio per arena: N/A\n"); } if ((err = je_mallctl("arenas.tcache_max", &sv, &ssz, NULL, 0)) == 0) { malloc_cprintf(write_cb, cbopaque, "Maximum thread-cached size class: %zu\n", sv); } if ((err = je_mallctl("opt.prof", &bv, &bsz, NULL, 0)) == 0 && bv) { CTL_GET("opt.lg_prof_sample", &sv, size_t); malloc_cprintf(write_cb, cbopaque, "Average profile sample interval: %"PRIu64 " (2^%zu)\n", (((uint64_t)1U) << sv), sv); CTL_GET("opt.lg_prof_interval", &ssv, ssize_t); if (ssv >= 0) { malloc_cprintf(write_cb, cbopaque, "Average profile dump interval: %"PRIu64 " (2^%zd)\n", (((uint64_t)1U) << ssv), ssv); } else { malloc_cprintf(write_cb, cbopaque, "Average profile dump interval: N/A\n"); } } CTL_GET("opt.lg_chunk", &sv, size_t); malloc_cprintf(write_cb, cbopaque, "Chunk size: %zu (2^%zu)\n", (ZU(1) << sv), sv); } if (config_stats) { size_t *cactive; size_t allocated, active, mapped; size_t chunks_current, chunks_high; uint64_t chunks_total; size_t huge_allocated; uint64_t huge_nmalloc, huge_ndalloc; CTL_GET("stats.cactive", &cactive, size_t *); CTL_GET("stats.allocated", &allocated, size_t); CTL_GET("stats.active", &active, size_t); CTL_GET("stats.mapped", &mapped, size_t); malloc_cprintf(write_cb, cbopaque, "Allocated: %zu, active: %zu, mapped: %zu\n", allocated, active, mapped); malloc_cprintf(write_cb, cbopaque, "Current active ceiling: %zu\n", atomic_read_z(cactive)); /* Print chunk stats. */ CTL_GET("stats.chunks.total", &chunks_total, uint64_t); CTL_GET("stats.chunks.high", &chunks_high, size_t); CTL_GET("stats.chunks.current", &chunks_current, size_t); malloc_cprintf(write_cb, cbopaque, "chunks: nchunks " "highchunks curchunks\n"); malloc_cprintf(write_cb, cbopaque, " %13"PRIu64" %12zu %12zu\n", chunks_total, chunks_high, chunks_current); /* Print huge stats. */ CTL_GET("stats.huge.nmalloc", &huge_nmalloc, uint64_t); CTL_GET("stats.huge.ndalloc", &huge_ndalloc, uint64_t); CTL_GET("stats.huge.allocated", &huge_allocated, size_t); malloc_cprintf(write_cb, cbopaque, "huge: nmalloc ndalloc allocated\n"); malloc_cprintf(write_cb, cbopaque, " %12"PRIu64" %12"PRIu64" %12zu\n", huge_nmalloc, huge_ndalloc, huge_allocated); if (merged) { unsigned narenas; CTL_GET("arenas.narenas", &narenas, unsigned); { VARIABLE_ARRAY(bool, initialized, narenas); size_t isz; unsigned i, ninitialized; isz = sizeof(bool) * narenas; xmallctl("arenas.initialized", initialized, &isz, NULL, 0); for (i = ninitialized = 0; i < narenas; i++) { if (initialized[i]) ninitialized++; } if (ninitialized > 1 || unmerged == false) { /* Print merged arena stats. */ malloc_cprintf(write_cb, cbopaque, "\nMerged arenas stats:\n"); stats_arena_print(write_cb, cbopaque, narenas, bins, large); } } } if (unmerged) { unsigned narenas; /* Print stats for each arena. */ CTL_GET("arenas.narenas", &narenas, unsigned); { VARIABLE_ARRAY(bool, initialized, narenas); size_t isz; unsigned i; isz = sizeof(bool) * narenas; xmallctl("arenas.initialized", initialized, &isz, NULL, 0); for (i = 0; i < narenas; i++) { if (initialized[i]) { malloc_cprintf(write_cb, cbopaque, "\narenas[%u]:\n", i); stats_arena_print(write_cb, cbopaque, i, bins, large); } } } } } malloc_cprintf(write_cb, cbopaque, "--- End jemalloc statistics ---\n"); } redis-2.6.16/deps/jemalloc/src/tcache.c000066400000000000000000000312271220734223100176200ustar00rootroot00000000000000#define JEMALLOC_TCACHE_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Data. */ malloc_tsd_data(, tcache, tcache_t *, NULL) malloc_tsd_data(, tcache_enabled, tcache_enabled_t, tcache_enabled_default) bool opt_tcache = true; ssize_t opt_lg_tcache_max = LG_TCACHE_MAXCLASS_DEFAULT; tcache_bin_info_t *tcache_bin_info; static unsigned stack_nelms; /* Total stack elms per tcache. */ size_t nhbins; size_t tcache_maxclass; /******************************************************************************/ size_t tcache_salloc(const void *ptr) { return (arena_salloc(ptr, false)); } void tcache_event_hard(tcache_t *tcache) { size_t binind = tcache->next_gc_bin; tcache_bin_t *tbin = &tcache->tbins[binind]; tcache_bin_info_t *tbin_info = &tcache_bin_info[binind]; if (tbin->low_water > 0) { /* * Flush (ceiling) 3/4 of the objects below the low water mark. */ if (binind < NBINS) { tcache_bin_flush_small(tbin, binind, tbin->ncached - tbin->low_water + (tbin->low_water >> 2), tcache); } else { tcache_bin_flush_large(tbin, binind, tbin->ncached - tbin->low_water + (tbin->low_water >> 2), tcache); } /* * Reduce fill count by 2X. Limit lg_fill_div such that the * fill count is always at least 1. */ if ((tbin_info->ncached_max >> (tbin->lg_fill_div+1)) >= 1) tbin->lg_fill_div++; } else if (tbin->low_water < 0) { /* * Increase fill count by 2X. Make sure lg_fill_div stays * greater than 0. */ if (tbin->lg_fill_div > 1) tbin->lg_fill_div--; } tbin->low_water = tbin->ncached; tcache->next_gc_bin++; if (tcache->next_gc_bin == nhbins) tcache->next_gc_bin = 0; tcache->ev_cnt = 0; } void * tcache_alloc_small_hard(tcache_t *tcache, tcache_bin_t *tbin, size_t binind) { void *ret; arena_tcache_fill_small(tcache->arena, tbin, binind, config_prof ? tcache->prof_accumbytes : 0); if (config_prof) tcache->prof_accumbytes = 0; ret = tcache_alloc_easy(tbin); return (ret); } void tcache_bin_flush_small(tcache_bin_t *tbin, size_t binind, unsigned rem, tcache_t *tcache) { void *ptr; unsigned i, nflush, ndeferred; bool merged_stats = false; assert(binind < NBINS); assert(rem <= tbin->ncached); for (nflush = tbin->ncached - rem; nflush > 0; nflush = ndeferred) { /* Lock the arena bin associated with the first object. */ arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE( tbin->avail[0]); arena_t *arena = chunk->arena; arena_bin_t *bin = &arena->bins[binind]; if (config_prof && arena == tcache->arena) { malloc_mutex_lock(&arena->lock); arena_prof_accum(arena, tcache->prof_accumbytes); malloc_mutex_unlock(&arena->lock); tcache->prof_accumbytes = 0; } malloc_mutex_lock(&bin->lock); if (config_stats && arena == tcache->arena) { assert(merged_stats == false); merged_stats = true; bin->stats.nflushes++; bin->stats.nrequests += tbin->tstats.nrequests; tbin->tstats.nrequests = 0; } ndeferred = 0; for (i = 0; i < nflush; i++) { ptr = tbin->avail[i]; assert(ptr != NULL); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); if (chunk->arena == arena) { size_t pageind = ((uintptr_t)ptr - (uintptr_t)chunk) >> LG_PAGE; arena_chunk_map_t *mapelm = arena_mapp_get(chunk, pageind); if (config_fill && opt_junk) { arena_alloc_junk_small(ptr, &arena_bin_info[binind], true); } arena_dalloc_bin_locked(arena, chunk, ptr, mapelm); } else { /* * This object was allocated via a different * arena bin than the one that is currently * locked. Stash the object, so that it can be * handled in a future pass. */ tbin->avail[ndeferred] = ptr; ndeferred++; } } malloc_mutex_unlock(&bin->lock); } if (config_stats && merged_stats == false) { /* * The flush loop didn't happen to flush to this thread's * arena, so the stats didn't get merged. Manually do so now. */ arena_bin_t *bin = &tcache->arena->bins[binind]; malloc_mutex_lock(&bin->lock); bin->stats.nflushes++; bin->stats.nrequests += tbin->tstats.nrequests; tbin->tstats.nrequests = 0; malloc_mutex_unlock(&bin->lock); } memmove(tbin->avail, &tbin->avail[tbin->ncached - rem], rem * sizeof(void *)); tbin->ncached = rem; if ((int)tbin->ncached < tbin->low_water) tbin->low_water = tbin->ncached; } void tcache_bin_flush_large(tcache_bin_t *tbin, size_t binind, unsigned rem, tcache_t *tcache) { void *ptr; unsigned i, nflush, ndeferred; bool merged_stats = false; assert(binind < nhbins); assert(rem <= tbin->ncached); for (nflush = tbin->ncached - rem; nflush > 0; nflush = ndeferred) { /* Lock the arena associated with the first object. */ arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE( tbin->avail[0]); arena_t *arena = chunk->arena; malloc_mutex_lock(&arena->lock); if ((config_prof || config_stats) && arena == tcache->arena) { if (config_prof) { arena_prof_accum(arena, tcache->prof_accumbytes); tcache->prof_accumbytes = 0; } if (config_stats) { merged_stats = true; arena->stats.nrequests_large += tbin->tstats.nrequests; arena->stats.lstats[binind - NBINS].nrequests += tbin->tstats.nrequests; tbin->tstats.nrequests = 0; } } ndeferred = 0; for (i = 0; i < nflush; i++) { ptr = tbin->avail[i]; assert(ptr != NULL); chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); if (chunk->arena == arena) arena_dalloc_large_locked(arena, chunk, ptr); else { /* * This object was allocated via a different * arena than the one that is currently locked. * Stash the object, so that it can be handled * in a future pass. */ tbin->avail[ndeferred] = ptr; ndeferred++; } } malloc_mutex_unlock(&arena->lock); } if (config_stats && merged_stats == false) { /* * The flush loop didn't happen to flush to this thread's * arena, so the stats didn't get merged. Manually do so now. */ arena_t *arena = tcache->arena; malloc_mutex_lock(&arena->lock); arena->stats.nrequests_large += tbin->tstats.nrequests; arena->stats.lstats[binind - NBINS].nrequests += tbin->tstats.nrequests; tbin->tstats.nrequests = 0; malloc_mutex_unlock(&arena->lock); } memmove(tbin->avail, &tbin->avail[tbin->ncached - rem], rem * sizeof(void *)); tbin->ncached = rem; if ((int)tbin->ncached < tbin->low_water) tbin->low_water = tbin->ncached; } void tcache_arena_associate(tcache_t *tcache, arena_t *arena) { if (config_stats) { /* Link into list of extant tcaches. */ malloc_mutex_lock(&arena->lock); ql_elm_new(tcache, link); ql_tail_insert(&arena->tcache_ql, tcache, link); malloc_mutex_unlock(&arena->lock); } tcache->arena = arena; } void tcache_arena_dissociate(tcache_t *tcache) { if (config_stats) { /* Unlink from list of extant tcaches. */ malloc_mutex_lock(&tcache->arena->lock); ql_remove(&tcache->arena->tcache_ql, tcache, link); malloc_mutex_unlock(&tcache->arena->lock); tcache_stats_merge(tcache, tcache->arena); } } tcache_t * tcache_create(arena_t *arena) { tcache_t *tcache; size_t size, stack_offset; unsigned i; size = offsetof(tcache_t, tbins) + (sizeof(tcache_bin_t) * nhbins); /* Naturally align the pointer stacks. */ size = PTR_CEILING(size); stack_offset = size; size += stack_nelms * sizeof(void *); /* * Round up to the nearest multiple of the cacheline size, in order to * avoid the possibility of false cacheline sharing. * * That this works relies on the same logic as in ipalloc(), but we * cannot directly call ipalloc() here due to tcache bootstrapping * issues. */ size = (size + CACHELINE_MASK) & (-CACHELINE); if (size <= SMALL_MAXCLASS) tcache = (tcache_t *)arena_malloc_small(arena, size, true); else if (size <= tcache_maxclass) tcache = (tcache_t *)arena_malloc_large(arena, size, true); else tcache = (tcache_t *)icallocx(size, false, arena); if (tcache == NULL) return (NULL); tcache_arena_associate(tcache, arena); assert((TCACHE_NSLOTS_SMALL_MAX & 1U) == 0); for (i = 0; i < nhbins; i++) { tcache->tbins[i].lg_fill_div = 1; tcache->tbins[i].avail = (void **)((uintptr_t)tcache + (uintptr_t)stack_offset); stack_offset += tcache_bin_info[i].ncached_max * sizeof(void *); } tcache_tsd_set(&tcache); return (tcache); } void tcache_destroy(tcache_t *tcache) { unsigned i; size_t tcache_size; tcache_arena_dissociate(tcache); for (i = 0; i < NBINS; i++) { tcache_bin_t *tbin = &tcache->tbins[i]; tcache_bin_flush_small(tbin, i, 0, tcache); if (config_stats && tbin->tstats.nrequests != 0) { arena_t *arena = tcache->arena; arena_bin_t *bin = &arena->bins[i]; malloc_mutex_lock(&bin->lock); bin->stats.nrequests += tbin->tstats.nrequests; malloc_mutex_unlock(&bin->lock); } } for (; i < nhbins; i++) { tcache_bin_t *tbin = &tcache->tbins[i]; tcache_bin_flush_large(tbin, i, 0, tcache); if (config_stats && tbin->tstats.nrequests != 0) { arena_t *arena = tcache->arena; malloc_mutex_lock(&arena->lock); arena->stats.nrequests_large += tbin->tstats.nrequests; arena->stats.lstats[i - NBINS].nrequests += tbin->tstats.nrequests; malloc_mutex_unlock(&arena->lock); } } if (config_prof && tcache->prof_accumbytes > 0) { malloc_mutex_lock(&tcache->arena->lock); arena_prof_accum(tcache->arena, tcache->prof_accumbytes); malloc_mutex_unlock(&tcache->arena->lock); } tcache_size = arena_salloc(tcache, false); if (tcache_size <= SMALL_MAXCLASS) { arena_chunk_t *chunk = CHUNK_ADDR2BASE(tcache); arena_t *arena = chunk->arena; size_t pageind = ((uintptr_t)tcache - (uintptr_t)chunk) >> LG_PAGE; arena_chunk_map_t *mapelm = arena_mapp_get(chunk, pageind); arena_dalloc_bin(arena, chunk, tcache, pageind, mapelm); } else if (tcache_size <= tcache_maxclass) { arena_chunk_t *chunk = CHUNK_ADDR2BASE(tcache); arena_t *arena = chunk->arena; arena_dalloc_large(arena, chunk, tcache); } else idallocx(tcache, false); } void tcache_thread_cleanup(void *arg) { tcache_t *tcache = *(tcache_t **)arg; if (tcache == TCACHE_STATE_DISABLED) { /* Do nothing. */ } else if (tcache == TCACHE_STATE_REINCARNATED) { /* * Another destructor called an allocator function after this * destructor was called. Reset tcache to * TCACHE_STATE_PURGATORY in order to receive another callback. */ tcache = TCACHE_STATE_PURGATORY; tcache_tsd_set(&tcache); } else if (tcache == TCACHE_STATE_PURGATORY) { /* * The previous time this destructor was called, we set the key * to TCACHE_STATE_PURGATORY so that other destructors wouldn't * cause re-creation of the tcache. This time, do nothing, so * that the destructor will not be called again. */ } else if (tcache != NULL) { assert(tcache != TCACHE_STATE_PURGATORY); tcache_destroy(tcache); tcache = TCACHE_STATE_PURGATORY; tcache_tsd_set(&tcache); } } void tcache_stats_merge(tcache_t *tcache, arena_t *arena) { unsigned i; /* Merge and reset tcache stats. */ for (i = 0; i < NBINS; i++) { arena_bin_t *bin = &arena->bins[i]; tcache_bin_t *tbin = &tcache->tbins[i]; malloc_mutex_lock(&bin->lock); bin->stats.nrequests += tbin->tstats.nrequests; malloc_mutex_unlock(&bin->lock); tbin->tstats.nrequests = 0; } for (; i < nhbins; i++) { malloc_large_stats_t *lstats = &arena->stats.lstats[i - NBINS]; tcache_bin_t *tbin = &tcache->tbins[i]; arena->stats.nrequests_large += tbin->tstats.nrequests; lstats->nrequests += tbin->tstats.nrequests; tbin->tstats.nrequests = 0; } } bool tcache_boot0(void) { unsigned i; /* * If necessary, clamp opt_lg_tcache_max, now that arena_maxclass is * known. */ if (opt_lg_tcache_max < 0 || (1U << opt_lg_tcache_max) < SMALL_MAXCLASS) tcache_maxclass = SMALL_MAXCLASS; else if ((1U << opt_lg_tcache_max) > arena_maxclass) tcache_maxclass = arena_maxclass; else tcache_maxclass = (1U << opt_lg_tcache_max); nhbins = NBINS + (tcache_maxclass >> LG_PAGE); /* Initialize tcache_bin_info. */ tcache_bin_info = (tcache_bin_info_t *)base_alloc(nhbins * sizeof(tcache_bin_info_t)); if (tcache_bin_info == NULL) return (true); stack_nelms = 0; for (i = 0; i < NBINS; i++) { if ((arena_bin_info[i].nregs << 1) <= TCACHE_NSLOTS_SMALL_MAX) { tcache_bin_info[i].ncached_max = (arena_bin_info[i].nregs << 1); } else { tcache_bin_info[i].ncached_max = TCACHE_NSLOTS_SMALL_MAX; } stack_nelms += tcache_bin_info[i].ncached_max; } for (; i < nhbins; i++) { tcache_bin_info[i].ncached_max = TCACHE_NSLOTS_LARGE; stack_nelms += tcache_bin_info[i].ncached_max; } return (false); } bool tcache_boot1(void) { if (tcache_tsd_boot() || tcache_enabled_tsd_boot()) return (true); return (false); } redis-2.6.16/deps/jemalloc/src/tsd.c000066400000000000000000000036441220734223100171650ustar00rootroot00000000000000#define JEMALLOC_TSD_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Data. */ static unsigned ncleanups; static malloc_tsd_cleanup_t cleanups[MALLOC_TSD_CLEANUPS_MAX]; /******************************************************************************/ void * malloc_tsd_malloc(size_t size) { /* Avoid choose_arena() in order to dodge bootstrapping issues. */ return (arena_malloc(arenas[0], size, false, false)); } void malloc_tsd_dalloc(void *wrapper) { idalloc(wrapper); } void malloc_tsd_no_cleanup(void *arg) { not_reached(); } #if defined(JEMALLOC_MALLOC_THREAD_CLEANUP) || defined(_WIN32) #ifndef _WIN32 JEMALLOC_EXPORT #endif void _malloc_thread_cleanup(void) { bool pending[MALLOC_TSD_CLEANUPS_MAX], again; unsigned i; for (i = 0; i < ncleanups; i++) pending[i] = true; do { again = false; for (i = 0; i < ncleanups; i++) { if (pending[i]) { pending[i] = cleanups[i](); if (pending[i]) again = true; } } } while (again); } #endif void malloc_tsd_cleanup_register(bool (*f)(void)) { assert(ncleanups < MALLOC_TSD_CLEANUPS_MAX); cleanups[ncleanups] = f; ncleanups++; } void malloc_tsd_boot(void) { ncleanups = 0; } #ifdef _WIN32 static BOOL WINAPI _tls_callback(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { switch (fdwReason) { #ifdef JEMALLOC_LAZY_LOCK case DLL_THREAD_ATTACH: isthreaded = true; break; #endif case DLL_THREAD_DETACH: _malloc_thread_cleanup(); break; default: break; } return (true); } #ifdef _MSC_VER # ifdef _M_IX86 # pragma comment(linker, "/INCLUDE:__tls_used") # else # pragma comment(linker, "/INCLUDE:_tls_used") # endif # pragma section(".CRT$XLY",long,read) #endif JEMALLOC_SECTION(".CRT$XLY") JEMALLOC_ATTR(used) static const BOOL (WINAPI *tls_callback)(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) = _tls_callback; #endif redis-2.6.16/deps/jemalloc/src/util.c000066400000000000000000000326261220734223100173520ustar00rootroot00000000000000#define assert(e) do { \ if (config_debug && !(e)) { \ malloc_write(": Failed assertion\n"); \ abort(); \ } \ } while (0) #define not_reached() do { \ if (config_debug) { \ malloc_write(": Unreachable code reached\n"); \ abort(); \ } \ } while (0) #define not_implemented() do { \ if (config_debug) { \ malloc_write(": Not implemented\n"); \ abort(); \ } \ } while (0) #define JEMALLOC_UTIL_C_ #include "jemalloc/internal/jemalloc_internal.h" /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static void wrtmessage(void *cbopaque, const char *s); #define U2S_BUFSIZE ((1U << (LG_SIZEOF_INTMAX_T + 3)) + 1) static char *u2s(uintmax_t x, unsigned base, bool uppercase, char *s, size_t *slen_p); #define D2S_BUFSIZE (1 + U2S_BUFSIZE) static char *d2s(intmax_t x, char sign, char *s, size_t *slen_p); #define O2S_BUFSIZE (1 + U2S_BUFSIZE) static char *o2s(uintmax_t x, bool alt_form, char *s, size_t *slen_p); #define X2S_BUFSIZE (2 + U2S_BUFSIZE) static char *x2s(uintmax_t x, bool alt_form, bool uppercase, char *s, size_t *slen_p); /******************************************************************************/ /* malloc_message() setup. */ static void wrtmessage(void *cbopaque, const char *s) { #ifdef SYS_write /* * Use syscall(2) rather than write(2) when possible in order to avoid * the possibility of memory allocation within libc. This is necessary * on FreeBSD; most operating systems do not have this problem though. */ UNUSED int result = syscall(SYS_write, STDERR_FILENO, s, strlen(s)); #else UNUSED int result = write(STDERR_FILENO, s, strlen(s)); #endif } JEMALLOC_EXPORT void (*je_malloc_message)(void *, const char *s); /* * Wrapper around malloc_message() that avoids the need for * je_malloc_message(...) throughout the code. */ void malloc_write(const char *s) { if (je_malloc_message != NULL) je_malloc_message(NULL, s); else wrtmessage(NULL, s); } /* * glibc provides a non-standard strerror_r() when _GNU_SOURCE is defined, so * provide a wrapper. */ int buferror(char *buf, size_t buflen) { #ifdef _WIN32 FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0, (LPSTR)buf, buflen, NULL); return (0); #elif defined(_GNU_SOURCE) char *b = strerror_r(errno, buf, buflen); if (b != buf) { strncpy(buf, b, buflen); buf[buflen-1] = '\0'; } return (0); #else return (strerror_r(errno, buf, buflen)); #endif } uintmax_t malloc_strtoumax(const char *nptr, char **endptr, int base) { uintmax_t ret, digit; int b; bool neg; const char *p, *ns; if (base < 0 || base == 1 || base > 36) { set_errno(EINVAL); return (UINTMAX_MAX); } b = base; /* Swallow leading whitespace and get sign, if any. */ neg = false; p = nptr; while (true) { switch (*p) { case '\t': case '\n': case '\v': case '\f': case '\r': case ' ': p++; break; case '-': neg = true; /* Fall through. */ case '+': p++; /* Fall through. */ default: goto label_prefix; } } /* Get prefix, if any. */ label_prefix: /* * Note where the first non-whitespace/sign character is so that it is * possible to tell whether any digits are consumed (e.g., " 0" vs. * " -x"). */ ns = p; if (*p == '0') { switch (p[1]) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': if (b == 0) b = 8; if (b == 8) p++; break; case 'x': switch (p[2]) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': if (b == 0) b = 16; if (b == 16) p += 2; break; default: break; } break; default: break; } } if (b == 0) b = 10; /* Convert. */ ret = 0; while ((*p >= '0' && *p <= '9' && (digit = *p - '0') < b) || (*p >= 'A' && *p <= 'Z' && (digit = 10 + *p - 'A') < b) || (*p >= 'a' && *p <= 'z' && (digit = 10 + *p - 'a') < b)) { uintmax_t pret = ret; ret *= b; ret += digit; if (ret < pret) { /* Overflow. */ set_errno(ERANGE); return (UINTMAX_MAX); } p++; } if (neg) ret = -ret; if (endptr != NULL) { if (p == ns) { /* No characters were converted. */ *endptr = (char *)nptr; } else *endptr = (char *)p; } return (ret); } static char * u2s(uintmax_t x, unsigned base, bool uppercase, char *s, size_t *slen_p) { unsigned i; i = U2S_BUFSIZE - 1; s[i] = '\0'; switch (base) { case 10: do { i--; s[i] = "0123456789"[x % (uint64_t)10]; x /= (uint64_t)10; } while (x > 0); break; case 16: { const char *digits = (uppercase) ? "0123456789ABCDEF" : "0123456789abcdef"; do { i--; s[i] = digits[x & 0xf]; x >>= 4; } while (x > 0); break; } default: { const char *digits = (uppercase) ? "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" : "0123456789abcdefghijklmnopqrstuvwxyz"; assert(base >= 2 && base <= 36); do { i--; s[i] = digits[x % (uint64_t)base]; x /= (uint64_t)base; } while (x > 0); }} *slen_p = U2S_BUFSIZE - 1 - i; return (&s[i]); } static char * d2s(intmax_t x, char sign, char *s, size_t *slen_p) { bool neg; if ((neg = (x < 0))) x = -x; s = u2s(x, 10, false, s, slen_p); if (neg) sign = '-'; switch (sign) { case '-': if (neg == false) break; /* Fall through. */ case ' ': case '+': s--; (*slen_p)++; *s = sign; break; default: not_reached(); } return (s); } static char * o2s(uintmax_t x, bool alt_form, char *s, size_t *slen_p) { s = u2s(x, 8, false, s, slen_p); if (alt_form && *s != '0') { s--; (*slen_p)++; *s = '0'; } return (s); } static char * x2s(uintmax_t x, bool alt_form, bool uppercase, char *s, size_t *slen_p) { s = u2s(x, 16, uppercase, s, slen_p); if (alt_form) { s -= 2; (*slen_p) += 2; memcpy(s, uppercase ? "0X" : "0x", 2); } return (s); } int malloc_vsnprintf(char *str, size_t size, const char *format, va_list ap) { int ret; size_t i; const char *f; #define APPEND_C(c) do { \ if (i < size) \ str[i] = (c); \ i++; \ } while (0) #define APPEND_S(s, slen) do { \ if (i < size) { \ size_t cpylen = (slen <= size - i) ? slen : size - i; \ memcpy(&str[i], s, cpylen); \ } \ i += slen; \ } while (0) #define APPEND_PADDED_S(s, slen, width, left_justify) do { \ /* Left padding. */ \ size_t pad_len = (width == -1) ? 0 : ((slen < (size_t)width) ? \ (size_t)width - slen : 0); \ if (left_justify == false && pad_len != 0) { \ size_t j; \ for (j = 0; j < pad_len; j++) \ APPEND_C(' '); \ } \ /* Value. */ \ APPEND_S(s, slen); \ /* Right padding. */ \ if (left_justify && pad_len != 0) { \ size_t j; \ for (j = 0; j < pad_len; j++) \ APPEND_C(' '); \ } \ } while (0) #define GET_ARG_NUMERIC(val, len) do { \ switch (len) { \ case '?': \ val = va_arg(ap, int); \ break; \ case '?' | 0x80: \ val = va_arg(ap, unsigned int); \ break; \ case 'l': \ val = va_arg(ap, long); \ break; \ case 'l' | 0x80: \ val = va_arg(ap, unsigned long); \ break; \ case 'q': \ val = va_arg(ap, long long); \ break; \ case 'q' | 0x80: \ val = va_arg(ap, unsigned long long); \ break; \ case 'j': \ val = va_arg(ap, intmax_t); \ break; \ case 't': \ val = va_arg(ap, ptrdiff_t); \ break; \ case 'z': \ val = va_arg(ap, ssize_t); \ break; \ case 'z' | 0x80: \ val = va_arg(ap, size_t); \ break; \ case 'p': /* Synthetic; used for %p. */ \ val = va_arg(ap, uintptr_t); \ break; \ default: not_reached(); \ } \ } while (0) i = 0; f = format; while (true) { switch (*f) { case '\0': goto label_out; case '%': { bool alt_form = false; bool left_justify = false; bool plus_space = false; bool plus_plus = false; int prec = -1; int width = -1; unsigned char len = '?'; f++; if (*f == '%') { /* %% */ APPEND_C(*f); break; } /* Flags. */ while (true) { switch (*f) { case '#': assert(alt_form == false); alt_form = true; break; case '-': assert(left_justify == false); left_justify = true; break; case ' ': assert(plus_space == false); plus_space = true; break; case '+': assert(plus_plus == false); plus_plus = true; break; default: goto label_width; } f++; } /* Width. */ label_width: switch (*f) { case '*': width = va_arg(ap, int); f++; break; case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': { uintmax_t uwidth; set_errno(0); uwidth = malloc_strtoumax(f, (char **)&f, 10); assert(uwidth != UINTMAX_MAX || get_errno() != ERANGE); width = (int)uwidth; if (*f == '.') { f++; goto label_precision; } else goto label_length; break; } case '.': f++; goto label_precision; default: goto label_length; } /* Precision. */ label_precision: switch (*f) { case '*': prec = va_arg(ap, int); f++; break; case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': { uintmax_t uprec; set_errno(0); uprec = malloc_strtoumax(f, (char **)&f, 10); assert(uprec != UINTMAX_MAX || get_errno() != ERANGE); prec = (int)uprec; break; } default: break; } /* Length. */ label_length: switch (*f) { case 'l': f++; if (*f == 'l') { len = 'q'; f++; } else len = 'l'; break; case 'j': len = 'j'; f++; break; case 't': len = 't'; f++; break; case 'z': len = 'z'; f++; break; default: break; } /* Conversion specifier. */ switch (*f) { char *s; size_t slen; case 'd': case 'i': { intmax_t val JEMALLOC_CC_SILENCE_INIT(0); char buf[D2S_BUFSIZE]; GET_ARG_NUMERIC(val, len); s = d2s(val, (plus_plus ? '+' : (plus_space ? ' ' : '-')), buf, &slen); APPEND_PADDED_S(s, slen, width, left_justify); f++; break; } case 'o': { uintmax_t val JEMALLOC_CC_SILENCE_INIT(0); char buf[O2S_BUFSIZE]; GET_ARG_NUMERIC(val, len | 0x80); s = o2s(val, alt_form, buf, &slen); APPEND_PADDED_S(s, slen, width, left_justify); f++; break; } case 'u': { uintmax_t val JEMALLOC_CC_SILENCE_INIT(0); char buf[U2S_BUFSIZE]; GET_ARG_NUMERIC(val, len | 0x80); s = u2s(val, 10, false, buf, &slen); APPEND_PADDED_S(s, slen, width, left_justify); f++; break; } case 'x': case 'X': { uintmax_t val JEMALLOC_CC_SILENCE_INIT(0); char buf[X2S_BUFSIZE]; GET_ARG_NUMERIC(val, len | 0x80); s = x2s(val, alt_form, *f == 'X', buf, &slen); APPEND_PADDED_S(s, slen, width, left_justify); f++; break; } case 'c': { unsigned char val; char buf[2]; assert(len == '?' || len == 'l'); assert_not_implemented(len != 'l'); val = va_arg(ap, int); buf[0] = val; buf[1] = '\0'; APPEND_PADDED_S(buf, 1, width, left_justify); f++; break; } case 's': assert(len == '?' || len == 'l'); assert_not_implemented(len != 'l'); s = va_arg(ap, char *); slen = (prec == -1) ? strlen(s) : prec; APPEND_PADDED_S(s, slen, width, left_justify); f++; break; case 'p': { uintmax_t val; char buf[X2S_BUFSIZE]; GET_ARG_NUMERIC(val, 'p'); s = x2s(val, true, false, buf, &slen); APPEND_PADDED_S(s, slen, width, left_justify); f++; break; } default: not_implemented(); } break; } default: { APPEND_C(*f); f++; break; }} } label_out: if (i < size) str[i] = '\0'; else str[size - 1] = '\0'; ret = i; #undef APPEND_C #undef APPEND_S #undef APPEND_PADDED_S #undef GET_ARG_NUMERIC return (ret); } JEMALLOC_ATTR(format(printf, 3, 4)) int malloc_snprintf(char *str, size_t size, const char *format, ...) { int ret; va_list ap; va_start(ap, format); ret = malloc_vsnprintf(str, size, format, ap); va_end(ap); return (ret); } void malloc_vcprintf(void (*write_cb)(void *, const char *), void *cbopaque, const char *format, va_list ap) { char buf[MALLOC_PRINTF_BUFSIZE]; if (write_cb == NULL) { /* * The caller did not provide an alternate write_cb callback * function, so use the default one. malloc_write() is an * inline function, so use malloc_message() directly here. */ write_cb = (je_malloc_message != NULL) ? je_malloc_message : wrtmessage; cbopaque = NULL; } malloc_vsnprintf(buf, sizeof(buf), format, ap); write_cb(cbopaque, buf); } /* * Print to a callback function in such a way as to (hopefully) avoid memory * allocation. */ JEMALLOC_ATTR(format(printf, 3, 4)) void malloc_cprintf(void (*write_cb)(void *, const char *), void *cbopaque, const char *format, ...) { va_list ap; va_start(ap, format); malloc_vcprintf(write_cb, cbopaque, format, ap); va_end(ap); } /* Print to stderr in such a way as to avoid memory allocation. */ JEMALLOC_ATTR(format(printf, 1, 2)) void malloc_printf(const char *format, ...) { va_list ap; va_start(ap, format); malloc_vcprintf(NULL, NULL, format, ap); va_end(ap); } redis-2.6.16/deps/jemalloc/src/zone.c000066400000000000000000000154221220734223100173430ustar00rootroot00000000000000#include "jemalloc/internal/jemalloc_internal.h" #ifndef JEMALLOC_ZONE # error "This source file is for zones on Darwin (OS X)." #endif /* * The malloc_default_purgeable_zone function is only available on >= 10.6. * We need to check whether it is present at runtime, thus the weak_import. */ extern malloc_zone_t *malloc_default_purgeable_zone(void) JEMALLOC_ATTR(weak_import); /******************************************************************************/ /* Data. */ static malloc_zone_t zone; static struct malloc_introspection_t zone_introspect; /******************************************************************************/ /* Function prototypes for non-inline static functions. */ static size_t zone_size(malloc_zone_t *zone, void *ptr); static void *zone_malloc(malloc_zone_t *zone, size_t size); static void *zone_calloc(malloc_zone_t *zone, size_t num, size_t size); static void *zone_valloc(malloc_zone_t *zone, size_t size); static void zone_free(malloc_zone_t *zone, void *ptr); static void *zone_realloc(malloc_zone_t *zone, void *ptr, size_t size); #if (JEMALLOC_ZONE_VERSION >= 5) static void *zone_memalign(malloc_zone_t *zone, size_t alignment, #endif #if (JEMALLOC_ZONE_VERSION >= 6) size_t size); static void zone_free_definite_size(malloc_zone_t *zone, void *ptr, size_t size); #endif static void *zone_destroy(malloc_zone_t *zone); static size_t zone_good_size(malloc_zone_t *zone, size_t size); static void zone_force_lock(malloc_zone_t *zone); static void zone_force_unlock(malloc_zone_t *zone); /******************************************************************************/ /* * Functions. */ static size_t zone_size(malloc_zone_t *zone, void *ptr) { /* * There appear to be places within Darwin (such as setenv(3)) that * cause calls to this function with pointers that *no* zone owns. If * we knew that all pointers were owned by *some* zone, we could split * our zone into two parts, and use one as the default allocator and * the other as the default deallocator/reallocator. Since that will * not work in practice, we must check all pointers to assure that they * reside within a mapped chunk before determining size. */ return (ivsalloc(ptr, config_prof)); } static void * zone_malloc(malloc_zone_t *zone, size_t size) { return (je_malloc(size)); } static void * zone_calloc(malloc_zone_t *zone, size_t num, size_t size) { return (je_calloc(num, size)); } static void * zone_valloc(malloc_zone_t *zone, size_t size) { void *ret = NULL; /* Assignment avoids useless compiler warning. */ je_posix_memalign(&ret, PAGE, size); return (ret); } static void zone_free(malloc_zone_t *zone, void *ptr) { if (ivsalloc(ptr, config_prof) != 0) { je_free(ptr); return; } free(ptr); } static void * zone_realloc(malloc_zone_t *zone, void *ptr, size_t size) { if (ivsalloc(ptr, config_prof) != 0) return (je_realloc(ptr, size)); return (realloc(ptr, size)); } #if (JEMALLOC_ZONE_VERSION >= 5) static void * zone_memalign(malloc_zone_t *zone, size_t alignment, size_t size) { void *ret = NULL; /* Assignment avoids useless compiler warning. */ je_posix_memalign(&ret, alignment, size); return (ret); } #endif #if (JEMALLOC_ZONE_VERSION >= 6) static void zone_free_definite_size(malloc_zone_t *zone, void *ptr, size_t size) { if (ivsalloc(ptr, config_prof) != 0) { assert(ivsalloc(ptr, config_prof) == size); je_free(ptr); return; } free(ptr); } #endif static void * zone_destroy(malloc_zone_t *zone) { /* This function should never be called. */ assert(false); return (NULL); } static size_t zone_good_size(malloc_zone_t *zone, size_t size) { if (size == 0) size = 1; return (s2u(size)); } static void zone_force_lock(malloc_zone_t *zone) { if (isthreaded) jemalloc_prefork(); } static void zone_force_unlock(malloc_zone_t *zone) { if (isthreaded) jemalloc_postfork_parent(); } JEMALLOC_ATTR(constructor) void register_zone(void) { /* * If something else replaced the system default zone allocator, don't * register jemalloc's. */ malloc_zone_t *default_zone = malloc_default_zone(); if (!default_zone->zone_name || strcmp(default_zone->zone_name, "DefaultMallocZone") != 0) { return; } zone.size = (void *)zone_size; zone.malloc = (void *)zone_malloc; zone.calloc = (void *)zone_calloc; zone.valloc = (void *)zone_valloc; zone.free = (void *)zone_free; zone.realloc = (void *)zone_realloc; zone.destroy = (void *)zone_destroy; zone.zone_name = "jemalloc_zone"; zone.batch_malloc = NULL; zone.batch_free = NULL; zone.introspect = &zone_introspect; zone.version = JEMALLOC_ZONE_VERSION; #if (JEMALLOC_ZONE_VERSION >= 5) zone.memalign = zone_memalign; #endif #if (JEMALLOC_ZONE_VERSION >= 6) zone.free_definite_size = zone_free_definite_size; #endif #if (JEMALLOC_ZONE_VERSION >= 8) zone.pressure_relief = NULL; #endif zone_introspect.enumerator = NULL; zone_introspect.good_size = (void *)zone_good_size; zone_introspect.check = NULL; zone_introspect.print = NULL; zone_introspect.log = NULL; zone_introspect.force_lock = (void *)zone_force_lock; zone_introspect.force_unlock = (void *)zone_force_unlock; zone_introspect.statistics = NULL; #if (JEMALLOC_ZONE_VERSION >= 6) zone_introspect.zone_locked = NULL; #endif #if (JEMALLOC_ZONE_VERSION >= 7) zone_introspect.enable_discharge_checking = NULL; zone_introspect.disable_discharge_checking = NULL; zone_introspect.discharge = NULL; #ifdef __BLOCKS__ zone_introspect.enumerate_discharged_pointers = NULL; #else zone_introspect.enumerate_unavailable_without_blocks = NULL; #endif #endif /* * The default purgeable zone is created lazily by OSX's libc. It uses * the default zone when it is created for "small" allocations * (< 15 KiB), but assumes the default zone is a scalable_zone. This * obviously fails when the default zone is the jemalloc zone, so * malloc_default_purgeable_zone is called beforehand so that the * default purgeable zone is created when the default zone is still * a scalable_zone. As purgeable zones only exist on >= 10.6, we need * to check for the existence of malloc_default_purgeable_zone() at * run time. */ if (malloc_default_purgeable_zone != NULL) malloc_default_purgeable_zone(); /* Register the custom zone. At this point it won't be the default. */ malloc_zone_register(&zone); /* * Unregister and reregister the default zone. On OSX >= 10.6, * unregistering takes the last registered zone and places it at the * location of the specified zone. Unregistering the default zone thus * makes the last registered one the default. On OSX < 10.6, * unregistering shifts all registered zones. The first registered zone * then becomes the default. */ do { default_zone = malloc_default_zone(); malloc_zone_unregister(default_zone); malloc_zone_register(default_zone); } while (malloc_default_zone() != &zone); } redis-2.6.16/deps/jemalloc/test/000077500000000000000000000000001220734223100164105ustar00rootroot00000000000000redis-2.6.16/deps/jemalloc/test/ALLOCM_ARENA.c000066400000000000000000000025271220734223100204370ustar00rootroot00000000000000#define JEMALLOC_MANGLE #include "jemalloc_test.h" #define NTHREADS 10 void * je_thread_start(void *arg) { unsigned thread_ind = (unsigned)(uintptr_t)arg; unsigned arena_ind; int r; void *p; size_t rsz, sz; sz = sizeof(arena_ind); if (mallctl("arenas.extend", &arena_ind, &sz, NULL, 0) != 0) { malloc_printf("Error in arenas.extend\n"); abort(); } if (thread_ind % 4 != 3) { size_t mib[3]; size_t miblen = sizeof(mib) / sizeof(size_t); const char *dss_precs[] = {"disabled", "primary", "secondary"}; const char *dss = dss_precs[thread_ind % 4]; if (mallctlnametomib("arena.0.dss", mib, &miblen) != 0) { malloc_printf("Error in mallctlnametomib()\n"); abort(); } mib[1] = arena_ind; if (mallctlbymib(mib, miblen, NULL, NULL, (void *)&dss, sizeof(const char *))) { malloc_printf("Error in mallctlbymib()\n"); abort(); } } r = allocm(&p, &rsz, 1, ALLOCM_ARENA(arena_ind)); if (r != ALLOCM_SUCCESS) { malloc_printf("Unexpected allocm() error\n"); abort(); } return (NULL); } int main(void) { je_thread_t threads[NTHREADS]; unsigned i; malloc_printf("Test begin\n"); for (i = 0; i < NTHREADS; i++) { je_thread_create(&threads[i], je_thread_start, (void *)(uintptr_t)i); } for (i = 0; i < NTHREADS; i++) je_thread_join(threads[i], NULL); malloc_printf("Test end\n"); return (0); } redis-2.6.16/deps/jemalloc/test/ALLOCM_ARENA.exp000066400000000000000000000000241220734223100207770ustar00rootroot00000000000000Test begin Test end redis-2.6.16/deps/jemalloc/test/aligned_alloc.c000066400000000000000000000052031220734223100213310ustar00rootroot00000000000000#define JEMALLOC_MANGLE #include "jemalloc_test.h" #define CHUNK 0x400000 /* #define MAXALIGN ((size_t)UINT64_C(0x80000000000)) */ #define MAXALIGN ((size_t)0x2000000LU) #define NITER 4 int main(void) { size_t alignment, size, total; unsigned i; void *p, *ps[NITER]; malloc_printf("Test begin\n"); /* Test error conditions. */ alignment = 0; set_errno(0); p = aligned_alloc(alignment, 1); if (p != NULL || get_errno() != EINVAL) { malloc_printf( "Expected error for invalid alignment %zu\n", alignment); } for (alignment = sizeof(size_t); alignment < MAXALIGN; alignment <<= 1) { set_errno(0); p = aligned_alloc(alignment + 1, 1); if (p != NULL || get_errno() != EINVAL) { malloc_printf( "Expected error for invalid alignment %zu\n", alignment + 1); } } #if LG_SIZEOF_PTR == 3 alignment = UINT64_C(0x8000000000000000); size = UINT64_C(0x8000000000000000); #else alignment = 0x80000000LU; size = 0x80000000LU; #endif set_errno(0); p = aligned_alloc(alignment, size); if (p != NULL || get_errno() != ENOMEM) { malloc_printf( "Expected error for aligned_alloc(%zu, %zu)\n", alignment, size); } #if LG_SIZEOF_PTR == 3 alignment = UINT64_C(0x4000000000000000); size = UINT64_C(0x8400000000000001); #else alignment = 0x40000000LU; size = 0x84000001LU; #endif set_errno(0); p = aligned_alloc(alignment, size); if (p != NULL || get_errno() != ENOMEM) { malloc_printf( "Expected error for aligned_alloc(%zu, %zu)\n", alignment, size); } alignment = 0x10LU; #if LG_SIZEOF_PTR == 3 size = UINT64_C(0xfffffffffffffff0); #else size = 0xfffffff0LU; #endif set_errno(0); p = aligned_alloc(alignment, size); if (p != NULL || get_errno() != ENOMEM) { malloc_printf( "Expected error for aligned_alloc(&p, %zu, %zu)\n", alignment, size); } for (i = 0; i < NITER; i++) ps[i] = NULL; for (alignment = 8; alignment <= MAXALIGN; alignment <<= 1) { total = 0; malloc_printf("Alignment: %zu\n", alignment); for (size = 1; size < 3 * alignment && size < (1U << 31); size += (alignment >> (LG_SIZEOF_PTR-1)) - 1) { for (i = 0; i < NITER; i++) { ps[i] = aligned_alloc(alignment, size); if (ps[i] == NULL) { char buf[BUFERROR_BUF]; buferror(buf, sizeof(buf)); malloc_printf( "Error for size %zu (%#zx): %s\n", size, size, buf); exit(1); } total += malloc_usable_size(ps[i]); if (total >= (MAXALIGN << 1)) break; } for (i = 0; i < NITER; i++) { if (ps[i] != NULL) { free(ps[i]); ps[i] = NULL; } } } } malloc_printf("Test end\n"); return (0); } redis-2.6.16/deps/jemalloc/test/aligned_alloc.exp000066400000000000000000000006251220734223100217060ustar00rootroot00000000000000Test begin Alignment: 8 Alignment: 16 Alignment: 32 Alignment: 64 Alignment: 128 Alignment: 256 Alignment: 512 Alignment: 1024 Alignment: 2048 Alignment: 4096 Alignment: 8192 Alignment: 16384 Alignment: 32768 Alignment: 65536 Alignment: 131072 Alignment: 262144 Alignment: 524288 Alignment: 1048576 Alignment: 2097152 Alignment: 4194304 Alignment: 8388608 Alignment: 16777216 Alignment: 33554432 Test end redis-2.6.16/deps/jemalloc/test/allocated.c000066400000000000000000000044251220734223100205110ustar00rootroot00000000000000#define JEMALLOC_MANGLE #include "jemalloc_test.h" void * je_thread_start(void *arg) { int err; void *p; uint64_t a0, a1, d0, d1; uint64_t *ap0, *ap1, *dp0, *dp1; size_t sz, usize; sz = sizeof(a0); if ((err = mallctl("thread.allocated", &a0, &sz, NULL, 0))) { if (err == ENOENT) { #ifdef JEMALLOC_STATS assert(false); #endif goto label_return; } malloc_printf("%s(): Error in mallctl(): %s\n", __func__, strerror(err)); exit(1); } sz = sizeof(ap0); if ((err = mallctl("thread.allocatedp", &ap0, &sz, NULL, 0))) { if (err == ENOENT) { #ifdef JEMALLOC_STATS assert(false); #endif goto label_return; } malloc_printf("%s(): Error in mallctl(): %s\n", __func__, strerror(err)); exit(1); } assert(*ap0 == a0); sz = sizeof(d0); if ((err = mallctl("thread.deallocated", &d0, &sz, NULL, 0))) { if (err == ENOENT) { #ifdef JEMALLOC_STATS assert(false); #endif goto label_return; } malloc_printf("%s(): Error in mallctl(): %s\n", __func__, strerror(err)); exit(1); } sz = sizeof(dp0); if ((err = mallctl("thread.deallocatedp", &dp0, &sz, NULL, 0))) { if (err == ENOENT) { #ifdef JEMALLOC_STATS assert(false); #endif goto label_return; } malloc_printf("%s(): Error in mallctl(): %s\n", __func__, strerror(err)); exit(1); } assert(*dp0 == d0); p = malloc(1); if (p == NULL) { malloc_printf("%s(): Error in malloc()\n", __func__); exit(1); } sz = sizeof(a1); mallctl("thread.allocated", &a1, &sz, NULL, 0); sz = sizeof(ap1); mallctl("thread.allocatedp", &ap1, &sz, NULL, 0); assert(*ap1 == a1); assert(ap0 == ap1); usize = malloc_usable_size(p); assert(a0 + usize <= a1); free(p); sz = sizeof(d1); mallctl("thread.deallocated", &d1, &sz, NULL, 0); sz = sizeof(dp1); mallctl("thread.deallocatedp", &dp1, &sz, NULL, 0); assert(*dp1 == d1); assert(dp0 == dp1); assert(d0 + usize <= d1); label_return: return (NULL); } int main(void) { int ret = 0; je_thread_t thread; malloc_printf("Test begin\n"); je_thread_start(NULL); je_thread_create(&thread, je_thread_start, NULL); je_thread_join(thread, (void *)&ret); je_thread_start(NULL); je_thread_create(&thread, je_thread_start, NULL); je_thread_join(thread, (void *)&ret); je_thread_start(NULL); malloc_printf("Test end\n"); return (ret); } redis-2.6.16/deps/jemalloc/test/allocated.exp000066400000000000000000000000241220734223100210520ustar00rootroot00000000000000Test begin Test end redis-2.6.16/deps/jemalloc/test/allocm.c000066400000000000000000000110561220734223100200260ustar00rootroot00000000000000#define JEMALLOC_MANGLE #include "jemalloc_test.h" #define CHUNK 0x400000 /* #define MAXALIGN ((size_t)UINT64_C(0x80000000000)) */ #define MAXALIGN ((size_t)0x2000000LU) #define NITER 4 int main(void) { int r; void *p; size_t nsz, rsz, sz, alignment, total; unsigned i; void *ps[NITER]; malloc_printf("Test begin\n"); sz = 42; nsz = 0; r = nallocm(&nsz, sz, 0); if (r != ALLOCM_SUCCESS) { malloc_printf("Unexpected nallocm() error\n"); abort(); } rsz = 0; r = allocm(&p, &rsz, sz, 0); if (r != ALLOCM_SUCCESS) { malloc_printf("Unexpected allocm() error\n"); abort(); } if (rsz < sz) malloc_printf("Real size smaller than expected\n"); if (nsz != rsz) malloc_printf("nallocm()/allocm() rsize mismatch\n"); if (dallocm(p, 0) != ALLOCM_SUCCESS) malloc_printf("Unexpected dallocm() error\n"); r = allocm(&p, NULL, sz, 0); if (r != ALLOCM_SUCCESS) { malloc_printf("Unexpected allocm() error\n"); abort(); } if (dallocm(p, 0) != ALLOCM_SUCCESS) malloc_printf("Unexpected dallocm() error\n"); nsz = 0; r = nallocm(&nsz, sz, ALLOCM_ZERO); if (r != ALLOCM_SUCCESS) { malloc_printf("Unexpected nallocm() error\n"); abort(); } rsz = 0; r = allocm(&p, &rsz, sz, ALLOCM_ZERO); if (r != ALLOCM_SUCCESS) { malloc_printf("Unexpected allocm() error\n"); abort(); } if (nsz != rsz) malloc_printf("nallocm()/allocm() rsize mismatch\n"); if (dallocm(p, 0) != ALLOCM_SUCCESS) malloc_printf("Unexpected dallocm() error\n"); #if LG_SIZEOF_PTR == 3 alignment = UINT64_C(0x8000000000000000); sz = UINT64_C(0x8000000000000000); #else alignment = 0x80000000LU; sz = 0x80000000LU; #endif nsz = 0; r = nallocm(&nsz, sz, ALLOCM_ALIGN(alignment)); if (r == ALLOCM_SUCCESS) { malloc_printf( "Expected error for nallocm(&nsz, %zu, %#x)\n", sz, ALLOCM_ALIGN(alignment)); } rsz = 0; r = allocm(&p, &rsz, sz, ALLOCM_ALIGN(alignment)); if (r == ALLOCM_SUCCESS) { malloc_printf( "Expected error for allocm(&p, %zu, %#x)\n", sz, ALLOCM_ALIGN(alignment)); } if (nsz != rsz) malloc_printf("nallocm()/allocm() rsize mismatch\n"); #if LG_SIZEOF_PTR == 3 alignment = UINT64_C(0x4000000000000000); sz = UINT64_C(0x8400000000000001); #else alignment = 0x40000000LU; sz = 0x84000001LU; #endif nsz = 0; r = nallocm(&nsz, sz, ALLOCM_ALIGN(alignment)); if (r != ALLOCM_SUCCESS) malloc_printf("Unexpected nallocm() error\n"); rsz = 0; r = allocm(&p, &rsz, sz, ALLOCM_ALIGN(alignment)); if (r == ALLOCM_SUCCESS) { malloc_printf( "Expected error for allocm(&p, %zu, %#x)\n", sz, ALLOCM_ALIGN(alignment)); } alignment = 0x10LU; #if LG_SIZEOF_PTR == 3 sz = UINT64_C(0xfffffffffffffff0); #else sz = 0xfffffff0LU; #endif nsz = 0; r = nallocm(&nsz, sz, ALLOCM_ALIGN(alignment)); if (r == ALLOCM_SUCCESS) { malloc_printf( "Expected error for nallocm(&nsz, %zu, %#x)\n", sz, ALLOCM_ALIGN(alignment)); } rsz = 0; r = allocm(&p, &rsz, sz, ALLOCM_ALIGN(alignment)); if (r == ALLOCM_SUCCESS) { malloc_printf( "Expected error for allocm(&p, %zu, %#x)\n", sz, ALLOCM_ALIGN(alignment)); } if (nsz != rsz) malloc_printf("nallocm()/allocm() rsize mismatch\n"); for (i = 0; i < NITER; i++) ps[i] = NULL; for (alignment = 8; alignment <= MAXALIGN; alignment <<= 1) { total = 0; malloc_printf("Alignment: %zu\n", alignment); for (sz = 1; sz < 3 * alignment && sz < (1U << 31); sz += (alignment >> (LG_SIZEOF_PTR-1)) - 1) { for (i = 0; i < NITER; i++) { nsz = 0; r = nallocm(&nsz, sz, ALLOCM_ALIGN(alignment) | ALLOCM_ZERO); if (r != ALLOCM_SUCCESS) { malloc_printf( "nallocm() error for size %zu" " (%#zx): %d\n", sz, sz, r); exit(1); } rsz = 0; r = allocm(&ps[i], &rsz, sz, ALLOCM_ALIGN(alignment) | ALLOCM_ZERO); if (r != ALLOCM_SUCCESS) { malloc_printf( "allocm() error for size %zu" " (%#zx): %d\n", sz, sz, r); exit(1); } if (rsz < sz) { malloc_printf( "Real size smaller than" " expected\n"); } if (nsz != rsz) { malloc_printf( "nallocm()/allocm() rsize" " mismatch\n"); } if ((uintptr_t)p & (alignment-1)) { malloc_printf( "%p inadequately aligned for" " alignment: %zu\n", p, alignment); } sallocm(ps[i], &rsz, 0); total += rsz; if (total >= (MAXALIGN << 1)) break; } for (i = 0; i < NITER; i++) { if (ps[i] != NULL) { dallocm(ps[i], 0); ps[i] = NULL; } } } } malloc_printf("Test end\n"); return (0); } redis-2.6.16/deps/jemalloc/test/allocm.exp000066400000000000000000000006251220734223100204000ustar00rootroot00000000000000Test begin Alignment: 8 Alignment: 16 Alignment: 32 Alignment: 64 Alignment: 128 Alignment: 256 Alignment: 512 Alignment: 1024 Alignment: 2048 Alignment: 4096 Alignment: 8192 Alignment: 16384 Alignment: 32768 Alignment: 65536 Alignment: 131072 Alignment: 262144 Alignment: 524288 Alignment: 1048576 Alignment: 2097152 Alignment: 4194304 Alignment: 8388608 Alignment: 16777216 Alignment: 33554432 Test end redis-2.6.16/deps/jemalloc/test/bitmap.c000066400000000000000000000057611220734223100200410ustar00rootroot00000000000000#define JEMALLOC_MANGLE #include "jemalloc_test.h" #if (LG_BITMAP_MAXBITS > 12) # define MAXBITS 4500 #else # define MAXBITS (1U << LG_BITMAP_MAXBITS) #endif static void test_bitmap_size(void) { size_t i, prev_size; prev_size = 0; for (i = 1; i <= MAXBITS; i++) { size_t size = bitmap_size(i); assert(size >= prev_size); prev_size = size; } } static void test_bitmap_init(void) { size_t i; for (i = 1; i <= MAXBITS; i++) { bitmap_info_t binfo; bitmap_info_init(&binfo, i); { size_t j; bitmap_t *bitmap = malloc(sizeof(bitmap_t) * bitmap_info_ngroups(&binfo)); bitmap_init(bitmap, &binfo); for (j = 0; j < i; j++) assert(bitmap_get(bitmap, &binfo, j) == false); free(bitmap); } } } static void test_bitmap_set(void) { size_t i; for (i = 1; i <= MAXBITS; i++) { bitmap_info_t binfo; bitmap_info_init(&binfo, i); { size_t j; bitmap_t *bitmap = malloc(sizeof(bitmap_t) * bitmap_info_ngroups(&binfo)); bitmap_init(bitmap, &binfo); for (j = 0; j < i; j++) bitmap_set(bitmap, &binfo, j); assert(bitmap_full(bitmap, &binfo)); free(bitmap); } } } static void test_bitmap_unset(void) { size_t i; for (i = 1; i <= MAXBITS; i++) { bitmap_info_t binfo; bitmap_info_init(&binfo, i); { size_t j; bitmap_t *bitmap = malloc(sizeof(bitmap_t) * bitmap_info_ngroups(&binfo)); bitmap_init(bitmap, &binfo); for (j = 0; j < i; j++) bitmap_set(bitmap, &binfo, j); assert(bitmap_full(bitmap, &binfo)); for (j = 0; j < i; j++) bitmap_unset(bitmap, &binfo, j); for (j = 0; j < i; j++) bitmap_set(bitmap, &binfo, j); assert(bitmap_full(bitmap, &binfo)); free(bitmap); } } } static void test_bitmap_sfu(void) { size_t i; for (i = 1; i <= MAXBITS; i++) { bitmap_info_t binfo; bitmap_info_init(&binfo, i); { ssize_t j; bitmap_t *bitmap = malloc(sizeof(bitmap_t) * bitmap_info_ngroups(&binfo)); bitmap_init(bitmap, &binfo); /* Iteratively set bits starting at the beginning. */ for (j = 0; j < i; j++) assert(bitmap_sfu(bitmap, &binfo) == j); assert(bitmap_full(bitmap, &binfo)); /* * Iteratively unset bits starting at the end, and * verify that bitmap_sfu() reaches the unset bits. */ for (j = i - 1; j >= 0; j--) { bitmap_unset(bitmap, &binfo, j); assert(bitmap_sfu(bitmap, &binfo) == j); bitmap_unset(bitmap, &binfo, j); } assert(bitmap_get(bitmap, &binfo, 0) == false); /* * Iteratively set bits starting at the beginning, and * verify that bitmap_sfu() looks past them. */ for (j = 1; j < i; j++) { bitmap_set(bitmap, &binfo, j - 1); assert(bitmap_sfu(bitmap, &binfo) == j); bitmap_unset(bitmap, &binfo, j); } assert(bitmap_sfu(bitmap, &binfo) == i - 1); assert(bitmap_full(bitmap, &binfo)); free(bitmap); } } } int main(void) { malloc_printf("Test begin\n"); test_bitmap_size(); test_bitmap_init(); test_bitmap_set(); test_bitmap_unset(); test_bitmap_sfu(); malloc_printf("Test end\n"); return (0); } redis-2.6.16/deps/jemalloc/test/bitmap.exp000066400000000000000000000000241220734223100203760ustar00rootroot00000000000000Test begin Test end redis-2.6.16/deps/jemalloc/test/jemalloc_test.h.in000066400000000000000000000021511220734223100220120ustar00rootroot00000000000000/* * This header should be included by tests, rather than directly including * jemalloc/jemalloc.h, because --with-install-suffix may cause the header to * have a different name. */ #include "jemalloc/jemalloc@install_suffix@.h" #include "jemalloc/internal/jemalloc_internal.h" /* Abstraction layer for threading in tests */ #ifdef _WIN32 #include typedef HANDLE je_thread_t; void je_thread_create(je_thread_t *thread, void *(*proc)(void *), void *arg) { LPTHREAD_START_ROUTINE routine = (LPTHREAD_START_ROUTINE)proc; *thread = CreateThread(NULL, 0, routine, arg, 0, NULL); if (*thread == NULL) { malloc_printf("Error in CreateThread()\n"); exit(1); } } void je_thread_join(je_thread_t thread, void **ret) { WaitForSingleObject(thread, INFINITE); } #else #include typedef pthread_t je_thread_t; void je_thread_create(je_thread_t *thread, void *(*proc)(void *), void *arg) { if (pthread_create(thread, NULL, proc, arg) != 0) { malloc_printf("Error in pthread_create()\n"); exit(1); } } void je_thread_join(je_thread_t thread, void **ret) { pthread_join(thread, ret); } #endif redis-2.6.16/deps/jemalloc/test/mremap.c000066400000000000000000000021651220734223100200410ustar00rootroot00000000000000#define JEMALLOC_MANGLE #include "jemalloc_test.h" int main(void) { int ret, err; size_t sz, lg_chunk, chunksize, i; char *p, *q; malloc_printf("Test begin\n"); sz = sizeof(lg_chunk); if ((err = mallctl("opt.lg_chunk", &lg_chunk, &sz, NULL, 0))) { assert(err != ENOENT); malloc_printf("%s(): Error in mallctl(): %s\n", __func__, strerror(err)); ret = 1; goto label_return; } chunksize = ((size_t)1U) << lg_chunk; p = (char *)malloc(chunksize); if (p == NULL) { malloc_printf("malloc(%zu) --> %p\n", chunksize, p); ret = 1; goto label_return; } memset(p, 'a', chunksize); q = (char *)realloc(p, chunksize * 2); if (q == NULL) { malloc_printf("realloc(%p, %zu) --> %p\n", p, chunksize * 2, q); ret = 1; goto label_return; } for (i = 0; i < chunksize; i++) { assert(q[i] == 'a'); } p = q; q = (char *)realloc(p, chunksize); if (q == NULL) { malloc_printf("realloc(%p, %zu) --> %p\n", p, chunksize, q); ret = 1; goto label_return; } for (i = 0; i < chunksize; i++) { assert(q[i] == 'a'); } free(q); ret = 0; label_return: malloc_printf("Test end\n"); return (ret); } redis-2.6.16/deps/jemalloc/test/mremap.exp000066400000000000000000000000241220734223100204030ustar00rootroot00000000000000Test begin Test end redis-2.6.16/deps/jemalloc/test/posix_memalign.c000066400000000000000000000050011220734223100215630ustar00rootroot00000000000000#define JEMALLOC_MANGLE #include "jemalloc_test.h" #define CHUNK 0x400000 /* #define MAXALIGN ((size_t)UINT64_C(0x80000000000)) */ #define MAXALIGN ((size_t)0x2000000LU) #define NITER 4 int main(void) { size_t alignment, size, total; unsigned i; int err; void *p, *ps[NITER]; malloc_printf("Test begin\n"); /* Test error conditions. */ for (alignment = 0; alignment < sizeof(void *); alignment++) { err = posix_memalign(&p, alignment, 1); if (err != EINVAL) { malloc_printf( "Expected error for invalid alignment %zu\n", alignment); } } for (alignment = sizeof(size_t); alignment < MAXALIGN; alignment <<= 1) { err = posix_memalign(&p, alignment + 1, 1); if (err == 0) { malloc_printf( "Expected error for invalid alignment %zu\n", alignment + 1); } } #if LG_SIZEOF_PTR == 3 alignment = UINT64_C(0x8000000000000000); size = UINT64_C(0x8000000000000000); #else alignment = 0x80000000LU; size = 0x80000000LU; #endif err = posix_memalign(&p, alignment, size); if (err == 0) { malloc_printf( "Expected error for posix_memalign(&p, %zu, %zu)\n", alignment, size); } #if LG_SIZEOF_PTR == 3 alignment = UINT64_C(0x4000000000000000); size = UINT64_C(0x8400000000000001); #else alignment = 0x40000000LU; size = 0x84000001LU; #endif err = posix_memalign(&p, alignment, size); if (err == 0) { malloc_printf( "Expected error for posix_memalign(&p, %zu, %zu)\n", alignment, size); } alignment = 0x10LU; #if LG_SIZEOF_PTR == 3 size = UINT64_C(0xfffffffffffffff0); #else size = 0xfffffff0LU; #endif err = posix_memalign(&p, alignment, size); if (err == 0) { malloc_printf( "Expected error for posix_memalign(&p, %zu, %zu)\n", alignment, size); } for (i = 0; i < NITER; i++) ps[i] = NULL; for (alignment = 8; alignment <= MAXALIGN; alignment <<= 1) { total = 0; malloc_printf("Alignment: %zu\n", alignment); for (size = 1; size < 3 * alignment && size < (1U << 31); size += (alignment >> (LG_SIZEOF_PTR-1)) - 1) { for (i = 0; i < NITER; i++) { err = posix_memalign(&ps[i], alignment, size); if (err) { malloc_printf( "Error for size %zu (%#zx): %s\n", size, size, strerror(err)); exit(1); } total += malloc_usable_size(ps[i]); if (total >= (MAXALIGN << 1)) break; } for (i = 0; i < NITER; i++) { if (ps[i] != NULL) { free(ps[i]); ps[i] = NULL; } } } } malloc_printf("Test end\n"); return (0); } redis-2.6.16/deps/jemalloc/test/posix_memalign.exp000066400000000000000000000006251220734223100221440ustar00rootroot00000000000000Test begin Alignment: 8 Alignment: 16 Alignment: 32 Alignment: 64 Alignment: 128 Alignment: 256 Alignment: 512 Alignment: 1024 Alignment: 2048 Alignment: 4096 Alignment: 8192 Alignment: 16384 Alignment: 32768 Alignment: 65536 Alignment: 131072 Alignment: 262144 Alignment: 524288 Alignment: 1048576 Alignment: 2097152 Alignment: 4194304 Alignment: 8388608 Alignment: 16777216 Alignment: 33554432 Test end redis-2.6.16/deps/jemalloc/test/rallocm.c000066400000000000000000000053751220734223100202170ustar00rootroot00000000000000#define JEMALLOC_MANGLE #include "jemalloc_test.h" int main(void) { size_t pagesize; void *p, *q; size_t sz, tsz; int r; malloc_printf("Test begin\n"); /* Get page size. */ { #ifdef _WIN32 SYSTEM_INFO si; GetSystemInfo(&si); pagesize = (size_t)si.dwPageSize; #else long result = sysconf(_SC_PAGESIZE); assert(result != -1); pagesize = (size_t)result; #endif } r = allocm(&p, &sz, 42, 0); if (r != ALLOCM_SUCCESS) { malloc_printf("Unexpected allocm() error\n"); abort(); } q = p; r = rallocm(&q, &tsz, sz, 0, ALLOCM_NO_MOVE); if (r != ALLOCM_SUCCESS) malloc_printf("Unexpected rallocm() error\n"); if (q != p) malloc_printf("Unexpected object move\n"); if (tsz != sz) { malloc_printf("Unexpected size change: %zu --> %zu\n", sz, tsz); } q = p; r = rallocm(&q, &tsz, sz, 5, ALLOCM_NO_MOVE); if (r != ALLOCM_SUCCESS) malloc_printf("Unexpected rallocm() error\n"); if (q != p) malloc_printf("Unexpected object move\n"); if (tsz != sz) { malloc_printf("Unexpected size change: %zu --> %zu\n", sz, tsz); } q = p; r = rallocm(&q, &tsz, sz + 5, 0, ALLOCM_NO_MOVE); if (r != ALLOCM_ERR_NOT_MOVED) malloc_printf("Unexpected rallocm() result\n"); if (q != p) malloc_printf("Unexpected object move\n"); if (tsz != sz) { malloc_printf("Unexpected size change: %zu --> %zu\n", sz, tsz); } q = p; r = rallocm(&q, &tsz, sz + 5, 0, 0); if (r != ALLOCM_SUCCESS) malloc_printf("Unexpected rallocm() error\n"); if (q == p) malloc_printf("Expected object move\n"); if (tsz == sz) { malloc_printf("Expected size change: %zu --> %zu\n", sz, tsz); } p = q; sz = tsz; r = rallocm(&q, &tsz, pagesize*2, 0, 0); if (r != ALLOCM_SUCCESS) malloc_printf("Unexpected rallocm() error\n"); if (q == p) malloc_printf("Expected object move\n"); if (tsz == sz) { malloc_printf("Expected size change: %zu --> %zu\n", sz, tsz); } p = q; sz = tsz; r = rallocm(&q, &tsz, pagesize*4, 0, 0); if (r != ALLOCM_SUCCESS) malloc_printf("Unexpected rallocm() error\n"); if (tsz == sz) { malloc_printf("Expected size change: %zu --> %zu\n", sz, tsz); } p = q; sz = tsz; r = rallocm(&q, &tsz, pagesize*2, 0, ALLOCM_NO_MOVE); if (r != ALLOCM_SUCCESS) malloc_printf("Unexpected rallocm() error\n"); if (q != p) malloc_printf("Unexpected object move\n"); if (tsz == sz) { malloc_printf("Expected size change: %zu --> %zu\n", sz, tsz); } sz = tsz; r = rallocm(&q, &tsz, pagesize*4, 0, ALLOCM_NO_MOVE); if (r != ALLOCM_SUCCESS) malloc_printf("Unexpected rallocm() error\n"); if (q != p) malloc_printf("Unexpected object move\n"); if (tsz == sz) { malloc_printf("Expected size change: %zu --> %zu\n", sz, tsz); } sz = tsz; dallocm(p, 0); malloc_printf("Test end\n"); return (0); } redis-2.6.16/deps/jemalloc/test/rallocm.exp000066400000000000000000000000241220734223100205530ustar00rootroot00000000000000Test begin Test end redis-2.6.16/deps/jemalloc/test/thread_arena.c000066400000000000000000000030551220734223100211740ustar00rootroot00000000000000#define JEMALLOC_MANGLE #include "jemalloc_test.h" #define NTHREADS 10 void * je_thread_start(void *arg) { unsigned main_arena_ind = *(unsigned *)arg; void *p; unsigned arena_ind; size_t size; int err; p = malloc(1); if (p == NULL) { malloc_printf("%s(): Error in malloc()\n", __func__); return (void *)1; } size = sizeof(arena_ind); if ((err = mallctl("thread.arena", &arena_ind, &size, &main_arena_ind, sizeof(main_arena_ind)))) { malloc_printf("%s(): Error in mallctl(): %s\n", __func__, strerror(err)); return (void *)1; } size = sizeof(arena_ind); if ((err = mallctl("thread.arena", &arena_ind, &size, NULL, 0))) { malloc_printf("%s(): Error in mallctl(): %s\n", __func__, strerror(err)); return (void *)1; } assert(arena_ind == main_arena_ind); return (NULL); } int main(void) { int ret = 0; void *p; unsigned arena_ind; size_t size; int err; je_thread_t threads[NTHREADS]; unsigned i; malloc_printf("Test begin\n"); p = malloc(1); if (p == NULL) { malloc_printf("%s(): Error in malloc()\n", __func__); ret = 1; goto label_return; } size = sizeof(arena_ind); if ((err = mallctl("thread.arena", &arena_ind, &size, NULL, 0))) { malloc_printf("%s(): Error in mallctl(): %s\n", __func__, strerror(err)); ret = 1; goto label_return; } for (i = 0; i < NTHREADS; i++) { je_thread_create(&threads[i], je_thread_start, (void *)&arena_ind); } for (i = 0; i < NTHREADS; i++) je_thread_join(threads[i], (void *)&ret); label_return: malloc_printf("Test end\n"); return (ret); } redis-2.6.16/deps/jemalloc/test/thread_arena.exp000066400000000000000000000000241220734223100215370ustar00rootroot00000000000000Test begin Test end redis-2.6.16/deps/jemalloc/test/thread_tcache_enabled.c000066400000000000000000000032771220734223100230150ustar00rootroot00000000000000#define JEMALLOC_MANGLE #include "jemalloc_test.h" void * je_thread_start(void *arg) { int err; size_t sz; bool e0, e1; sz = sizeof(bool); if ((err = mallctl("thread.tcache.enabled", &e0, &sz, NULL, 0))) { if (err == ENOENT) { #ifdef JEMALLOC_TCACHE assert(false); #endif } goto label_return; } if (e0) { e1 = false; assert(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz) == 0); assert(e0); } e1 = true; assert(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz) == 0); assert(e0 == false); e1 = true; assert(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz) == 0); assert(e0); e1 = false; assert(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz) == 0); assert(e0); e1 = false; assert(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz) == 0); assert(e0 == false); free(malloc(1)); e1 = true; assert(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz) == 0); assert(e0 == false); free(malloc(1)); e1 = true; assert(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz) == 0); assert(e0); free(malloc(1)); e1 = false; assert(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz) == 0); assert(e0); free(malloc(1)); e1 = false; assert(mallctl("thread.tcache.enabled", &e0, &sz, &e1, sz) == 0); assert(e0 == false); free(malloc(1)); label_return: return (NULL); } int main(void) { int ret = 0; je_thread_t thread; malloc_printf("Test begin\n"); je_thread_start(NULL); je_thread_create(&thread, je_thread_start, NULL); je_thread_join(thread, (void *)&ret); je_thread_start(NULL); je_thread_create(&thread, je_thread_start, NULL); je_thread_join(thread, (void *)&ret); je_thread_start(NULL); malloc_printf("Test end\n"); return (ret); } redis-2.6.16/deps/jemalloc/test/thread_tcache_enabled.exp000066400000000000000000000000241220734223100233520ustar00rootroot00000000000000Test begin Test end redis-2.6.16/deps/linenoise/000077500000000000000000000000001220734223100156305ustar00rootroot00000000000000redis-2.6.16/deps/linenoise/.gitignore000066400000000000000000000000231220734223100176130ustar00rootroot00000000000000linenoise_example* redis-2.6.16/deps/linenoise/Makefile000066400000000000000000000004731220734223100172740ustar00rootroot00000000000000STD= WARN= -Wall OPT= -Os R_CFLAGS= $(STD) $(WARN) $(OPT) $(DEBUG) $(CFLAGS) R_LDFLAGS= $(LDFLAGS) DEBUG= -g R_CC=$(CC) $(R_CFLAGS) R_LD=$(CC) $(R_LDFLAGS) linenoise.o: linenoise.h linenoise.c linenoise_example: linenoise.o example.o $(R_LD) -o $@ $^ .c.o: $(R_CC) -c $< clean: rm -f linenoise_example *.o redis-2.6.16/deps/linenoise/README.markdown000066400000000000000000000062701220734223100203360ustar00rootroot00000000000000# Linenoise A minimal, zero-config, BSD licensed, readline replacement. News: linenoise is now part of [Android](http://android.git.kernel.org/?p=platform/system/core.git;a=tree;f=liblinenoise;h=56450eaed7f783760e5e6a5993ef75cde2e29dea;hb=HEAD Android)! ## Can a line editing library be 20k lines of code? Line editing with some support for history is a really important feature for command line utilities. Instead of retyping almost the same stuff again and again it's just much better to hit the up arrow and edit on syntax errors, or in order to try a slightly different command. But apparently code dealing with terminals is some sort of Black Magic: readline is 30k lines of code, libedit 20k. Is it reasonable to link small utilities to huge libraries just to get a minimal support for line editing? So what usually happens is either: * Large programs with configure scripts disabling line editing if readline is not present in the system, or not supporting it at all since readline is GPL licensed and libedit (the BSD clone) is not as known and available as readline is (Readl world example of this problem: Tclsh). * Smaller programs not using a configure script not supporting line editing at all (A problem we had with Redis-cli for instance). The result is a pollution of binaries without line editing support. So I spent more or less two hours doing a reality check resulting in this little library: is it *really* needed for a line editing library to be 20k lines of code? Apparently not, it is possibe to get a very small, zero configuration, trivial to embed library, that solves the problem. Smaller programs will just include this, supporing line editing out of the box. Larger programs may use this little library or just checking with configure if readline/libedit is available and resorting to linenoise if not. ## Terminals, in 2010. Apparently almost every terminal you can happen to use today has some kind of support for VT100 alike escape sequences. So I tried to write a lib using just very basic VT100 features. The resulting library appears to work everywhere I tried to use it. Since it's so young I guess there are a few bugs, or the lib may not compile or work with some operating system, but it's a matter of a few weeks and eventually we'll get it right, and there will be no excuses for not shipping command line tools without built-in line editing support. The library is currently less than 400 lines of code. In order to use it in your project just look at the *example.c* file in the source distribution, it is trivial. Linenoise is BSD code, so you can use both in free software and commercial software. ## Tested with... * Linux text only console ($TERM = linux) * Linux KDE terminal application ($TERM = xterm) * Linux xterm ($TERM = xterm) * Mac OS X iTerm ($TERM = xterm) * Mac OS X default Terminal.app ($TERM = xterm) * OpenBSD 4.5 through an OSX Terminal.app ($TERM = screen) * IBM AIX 6.1 * FreeBSD xterm ($TERM = xterm) Please test it everywhere you can and report back! ## Let's push this forward! Please fork it and add something interesting and send me a pull request. What's especially interesting are fixes, new key bindings, completion. Send feedbacks to antirez at gmail redis-2.6.16/deps/linenoise/example.c000066400000000000000000000012751220734223100174340ustar00rootroot00000000000000#include #include #include "linenoise.h" void completion(const char *buf, linenoiseCompletions *lc) { if (buf[0] == 'h') { linenoiseAddCompletion(lc,"hello"); linenoiseAddCompletion(lc,"hello there"); } } int main(void) { char *line; linenoiseSetCompletionCallback(completion); linenoiseHistoryLoad("history.txt"); /* Load the history at startup */ while((line = linenoise("hello> ")) != NULL) { if (line[0] != '\0') { printf("echo: '%s'\n", line); linenoiseHistoryAdd(line); linenoiseHistorySave("history.txt"); /* Save every new entry */ } free(line); } return 0; } redis-2.6.16/deps/linenoise/linenoise.c000066400000000000000000000470721220734223100177730ustar00rootroot00000000000000/* linenoise.c -- guerrilla line editing library against the idea that a * line editing lib needs to be 20,000 lines of C code. * * You can find the latest source code at: * * http://github.com/antirez/linenoise * * Does a number of crazy assumptions that happen to be true in 99.9999% of * the 2010 UNIX computers around. * * ------------------------------------------------------------------------ * * Copyright (c) 2010, Salvatore Sanfilippo * Copyright (c) 2010, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * ------------------------------------------------------------------------ * * References: * - http://invisible-island.net/xterm/ctlseqs/ctlseqs.html * - http://www.3waylabs.com/nw/WWW/products/wizcon/vt220.html * * Todo list: * - Switch to gets() if $TERM is something we can't support. * - Filter bogus Ctrl+ combinations. * - Win32 support * * Bloat: * - Completion? * - History search like Ctrl+r in readline? * * List of escape sequences used by this program, we do everything just * with three sequences. In order to be so cheap we may have some * flickering effect with some slow terminal, but the lesser sequences * the more compatible. * * CHA (Cursor Horizontal Absolute) * Sequence: ESC [ n G * Effect: moves cursor to column n * * EL (Erase Line) * Sequence: ESC [ n K * Effect: if n is 0 or missing, clear from cursor to end of line * Effect: if n is 1, clear from beginning of line to cursor * Effect: if n is 2, clear entire line * * CUF (CUrsor Forward) * Sequence: ESC [ n C * Effect: moves cursor forward of n chars * * The following are used to clear the screen: ESC [ H ESC [ 2 J * This is actually composed of two sequences: * * cursorhome * Sequence: ESC [ H * Effect: moves the cursor to upper left corner * * ED2 (Clear entire screen) * Sequence: ESC [ 2 J * Effect: clear the whole screen * */ #include #include #include #include #include #include #include #include #include #include #include "linenoise.h" #define LINENOISE_DEFAULT_HISTORY_MAX_LEN 100 #define LINENOISE_MAX_LINE 4096 static char *unsupported_term[] = {"dumb","cons25",NULL}; static linenoiseCompletionCallback *completionCallback = NULL; static struct termios orig_termios; /* in order to restore at exit */ static int rawmode = 0; /* for atexit() function to check if restore is needed*/ static int atexit_registered = 0; /* register atexit just 1 time */ static int history_max_len = LINENOISE_DEFAULT_HISTORY_MAX_LEN; static int history_len = 0; char **history = NULL; static void linenoiseAtExit(void); int linenoiseHistoryAdd(const char *line); static int isUnsupportedTerm(void) { char *term = getenv("TERM"); int j; if (term == NULL) return 0; for (j = 0; unsupported_term[j]; j++) if (!strcasecmp(term,unsupported_term[j])) return 1; return 0; } static void freeHistory(void) { if (history) { int j; for (j = 0; j < history_len; j++) free(history[j]); free(history); } } static int enableRawMode(int fd) { struct termios raw; if (!isatty(STDIN_FILENO)) goto fatal; if (!atexit_registered) { atexit(linenoiseAtExit); atexit_registered = 1; } if (tcgetattr(fd,&orig_termios) == -1) goto fatal; raw = orig_termios; /* modify the original mode */ /* input modes: no break, no CR to NL, no parity check, no strip char, * no start/stop output control. */ raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON); /* output modes - disable post processing */ raw.c_oflag &= ~(OPOST); /* control modes - set 8 bit chars */ raw.c_cflag |= (CS8); /* local modes - choing off, canonical off, no extended functions, * no signal chars (^Z,^C) */ raw.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG); /* control chars - set return condition: min number of bytes and timer. * We want read to return every single byte, without timeout. */ raw.c_cc[VMIN] = 1; raw.c_cc[VTIME] = 0; /* 1 byte, no timer */ /* put terminal in raw mode after flushing */ if (tcsetattr(fd,TCSAFLUSH,&raw) < 0) goto fatal; rawmode = 1; return 0; fatal: errno = ENOTTY; return -1; } static void disableRawMode(int fd) { /* Don't even check the return value as it's too late. */ if (rawmode && tcsetattr(fd,TCSAFLUSH,&orig_termios) != -1) rawmode = 0; } /* At exit we'll try to fix the terminal to the initial conditions. */ static void linenoiseAtExit(void) { disableRawMode(STDIN_FILENO); freeHistory(); } static int getColumns(void) { struct winsize ws; if (ioctl(1, TIOCGWINSZ, &ws) == -1) return 80; return ws.ws_col; } static void refreshLine(int fd, const char *prompt, char *buf, size_t len, size_t pos, size_t cols) { char seq[64]; size_t plen = strlen(prompt); while((plen+pos) >= cols) { buf++; len--; pos--; } while (plen+len > cols) { len--; } /* Cursor to left edge */ snprintf(seq,64,"\x1b[0G"); if (write(fd,seq,strlen(seq)) == -1) return; /* Write the prompt and the current buffer content */ if (write(fd,prompt,strlen(prompt)) == -1) return; if (write(fd,buf,len) == -1) return; /* Erase to right */ snprintf(seq,64,"\x1b[0K"); if (write(fd,seq,strlen(seq)) == -1) return; /* Move cursor to original position. */ snprintf(seq,64,"\x1b[0G\x1b[%dC", (int)(pos+plen)); if (write(fd,seq,strlen(seq)) == -1) return; } static void beep() { fprintf(stderr, "\x7"); fflush(stderr); } static void freeCompletions(linenoiseCompletions *lc) { size_t i; for (i = 0; i < lc->len; i++) free(lc->cvec[i]); if (lc->cvec != NULL) free(lc->cvec); } static int completeLine(int fd, const char *prompt, char *buf, size_t buflen, size_t *len, size_t *pos, size_t cols) { linenoiseCompletions lc = { 0, NULL }; int nread, nwritten; char c = 0; completionCallback(buf,&lc); if (lc.len == 0) { beep(); } else { size_t stop = 0, i = 0; size_t clen; while(!stop) { /* Show completion or original buffer */ if (i < lc.len) { clen = strlen(lc.cvec[i]); refreshLine(fd,prompt,lc.cvec[i],clen,clen,cols); } else { refreshLine(fd,prompt,buf,*len,*pos,cols); } nread = read(fd,&c,1); if (nread <= 0) { freeCompletions(&lc); return -1; } switch(c) { case 9: /* tab */ i = (i+1) % (lc.len+1); if (i == lc.len) beep(); break; case 27: /* escape */ /* Re-show original buffer */ if (i < lc.len) { refreshLine(fd,prompt,buf,*len,*pos,cols); } stop = 1; break; default: /* Update buffer and return */ if (i < lc.len) { nwritten = snprintf(buf,buflen,"%s",lc.cvec[i]); *len = *pos = nwritten; } stop = 1; break; } } } freeCompletions(&lc); return c; /* Return last read character */ } void linenoiseClearScreen(void) { if (write(STDIN_FILENO,"\x1b[H\x1b[2J",7) <= 0) { /* nothing to do, just to avoid warning. */ } } static int linenoisePrompt(int fd, char *buf, size_t buflen, const char *prompt) { size_t plen = strlen(prompt); size_t pos = 0; size_t len = 0; size_t cols = getColumns(); int history_index = 0; size_t old_pos; size_t diff; buf[0] = '\0'; buflen--; /* Make sure there is always space for the nulterm */ /* The latest history entry is always our current buffer, that * initially is just an empty string. */ linenoiseHistoryAdd(""); if (write(fd,prompt,plen) == -1) return -1; while(1) { char c; int nread; char seq[2], seq2[2]; nread = read(fd,&c,1); if (nread <= 0) return len; /* Only autocomplete when the callback is set. It returns < 0 when * there was an error reading from fd. Otherwise it will return the * character that should be handled next. */ if (c == 9 && completionCallback != NULL) { c = completeLine(fd,prompt,buf,buflen,&len,&pos,cols); /* Return on errors */ if (c < 0) return len; /* Read next character when 0 */ if (c == 0) continue; } switch(c) { case 13: /* enter */ history_len--; free(history[history_len]); return (int)len; case 3: /* ctrl-c */ errno = EAGAIN; return -1; case 127: /* backspace */ case 8: /* ctrl-h */ if (pos > 0 && len > 0) { memmove(buf+pos-1,buf+pos,len-pos); pos--; len--; buf[len] = '\0'; refreshLine(fd,prompt,buf,len,pos,cols); } break; case 4: /* ctrl-d, remove char at right of cursor */ if (len > 1 && pos < (len-1)) { memmove(buf+pos,buf+pos+1,len-pos); len--; buf[len] = '\0'; refreshLine(fd,prompt,buf,len,pos,cols); } else if (len == 0) { history_len--; free(history[history_len]); return -1; } break; case 20: /* ctrl-t */ if (pos > 0 && pos < len) { int aux = buf[pos-1]; buf[pos-1] = buf[pos]; buf[pos] = aux; if (pos != len-1) pos++; refreshLine(fd,prompt,buf,len,pos,cols); } break; case 2: /* ctrl-b */ goto left_arrow; case 6: /* ctrl-f */ goto right_arrow; case 16: /* ctrl-p */ seq[1] = 65; goto up_down_arrow; case 14: /* ctrl-n */ seq[1] = 66; goto up_down_arrow; break; case 27: /* escape sequence */ if (read(fd,seq,2) == -1) break; if (seq[0] == 91 && seq[1] == 68) { left_arrow: /* left arrow */ if (pos > 0) { pos--; refreshLine(fd,prompt,buf,len,pos,cols); } } else if (seq[0] == 91 && seq[1] == 67) { right_arrow: /* right arrow */ if (pos != len) { pos++; refreshLine(fd,prompt,buf,len,pos,cols); } } else if (seq[0] == 91 && (seq[1] == 65 || seq[1] == 66)) { up_down_arrow: /* up and down arrow: history */ if (history_len > 1) { /* Update the current history entry before to * overwrite it with tne next one. */ free(history[history_len-1-history_index]); history[history_len-1-history_index] = strdup(buf); /* Show the new entry */ history_index += (seq[1] == 65) ? 1 : -1; if (history_index < 0) { history_index = 0; break; } else if (history_index >= history_len) { history_index = history_len-1; break; } strncpy(buf,history[history_len-1-history_index],buflen); buf[buflen] = '\0'; len = pos = strlen(buf); refreshLine(fd,prompt,buf,len,pos,cols); } } else if (seq[0] == 91 && seq[1] > 48 && seq[1] < 55) { /* extended escape */ if (read(fd,seq2,2) == -1) break; if (seq[1] == 51 && seq2[0] == 126) { /* delete */ if (len > 0 && pos < len) { memmove(buf+pos,buf+pos+1,len-pos-1); len--; buf[len] = '\0'; refreshLine(fd,prompt,buf,len,pos,cols); } } } break; default: if (len < buflen) { if (len == pos) { buf[pos] = c; pos++; len++; buf[len] = '\0'; if (plen+len < cols) { /* Avoid a full update of the line in the * trivial case. */ if (write(fd,&c,1) == -1) return -1; } else { refreshLine(fd,prompt,buf,len,pos,cols); } } else { memmove(buf+pos+1,buf+pos,len-pos); buf[pos] = c; len++; pos++; buf[len] = '\0'; refreshLine(fd,prompt,buf,len,pos,cols); } } break; case 21: /* Ctrl+u, delete the whole line. */ buf[0] = '\0'; pos = len = 0; refreshLine(fd,prompt,buf,len,pos,cols); break; case 11: /* Ctrl+k, delete from current to end of line. */ buf[pos] = '\0'; len = pos; refreshLine(fd,prompt,buf,len,pos,cols); break; case 1: /* Ctrl+a, go to the start of the line */ pos = 0; refreshLine(fd,prompt,buf,len,pos,cols); break; case 5: /* ctrl+e, go to the end of the line */ pos = len; refreshLine(fd,prompt,buf,len,pos,cols); break; case 12: /* ctrl+l, clear screen */ linenoiseClearScreen(); refreshLine(fd,prompt,buf,len,pos,cols); break; case 23: /* ctrl+w, delete previous word */ old_pos = pos; while (pos > 0 && buf[pos-1] == ' ') pos--; while (pos > 0 && buf[pos-1] != ' ') pos--; diff = old_pos - pos; memmove(&buf[pos], &buf[old_pos], len-old_pos+1); len -= diff; refreshLine(fd,prompt,buf,len,pos,cols); break; } } return len; } static int linenoiseRaw(char *buf, size_t buflen, const char *prompt) { int fd = STDIN_FILENO; int count; if (buflen == 0) { errno = EINVAL; return -1; } if (!isatty(STDIN_FILENO)) { if (fgets(buf, buflen, stdin) == NULL) return -1; count = strlen(buf); if (count && buf[count-1] == '\n') { count--; buf[count] = '\0'; } } else { if (enableRawMode(fd) == -1) return -1; count = linenoisePrompt(fd, buf, buflen, prompt); disableRawMode(fd); printf("\n"); } return count; } char *linenoise(const char *prompt) { char buf[LINENOISE_MAX_LINE]; int count; if (isUnsupportedTerm()) { size_t len; printf("%s",prompt); fflush(stdout); if (fgets(buf,LINENOISE_MAX_LINE,stdin) == NULL) return NULL; len = strlen(buf); while(len && (buf[len-1] == '\n' || buf[len-1] == '\r')) { len--; buf[len] = '\0'; } return strdup(buf); } else { count = linenoiseRaw(buf,LINENOISE_MAX_LINE,prompt); if (count == -1) return NULL; return strdup(buf); } } /* Register a callback function to be called for tab-completion. */ void linenoiseSetCompletionCallback(linenoiseCompletionCallback *fn) { completionCallback = fn; } void linenoiseAddCompletion(linenoiseCompletions *lc, char *str) { size_t len = strlen(str); char *copy = malloc(len+1); memcpy(copy,str,len+1); lc->cvec = realloc(lc->cvec,sizeof(char*)*(lc->len+1)); lc->cvec[lc->len++] = copy; } /* Using a circular buffer is smarter, but a bit more complex to handle. */ int linenoiseHistoryAdd(const char *line) { char *linecopy; if (history_max_len == 0) return 0; if (history == NULL) { history = malloc(sizeof(char*)*history_max_len); if (history == NULL) return 0; memset(history,0,(sizeof(char*)*history_max_len)); } linecopy = strdup(line); if (!linecopy) return 0; if (history_len == history_max_len) { free(history[0]); memmove(history,history+1,sizeof(char*)*(history_max_len-1)); history_len--; } history[history_len] = linecopy; history_len++; return 1; } int linenoiseHistorySetMaxLen(int len) { char **new; if (len < 1) return 0; if (history) { int tocopy = history_len; new = malloc(sizeof(char*)*len); if (new == NULL) return 0; if (len < tocopy) tocopy = len; memcpy(new,history+(history_max_len-tocopy), sizeof(char*)*tocopy); free(history); history = new; } history_max_len = len; if (history_len > history_max_len) history_len = history_max_len; return 1; } /* Save the history in the specified file. On success 0 is returned * otherwise -1 is returned. */ int linenoiseHistorySave(char *filename) { FILE *fp = fopen(filename,"w"); int j; if (fp == NULL) return -1; for (j = 0; j < history_len; j++) fprintf(fp,"%s\n",history[j]); fclose(fp); return 0; } /* Load the history from the specified file. If the file does not exist * zero is returned and no operation is performed. * * If the file exists and the operation succeeded 0 is returned, otherwise * on error -1 is returned. */ int linenoiseHistoryLoad(char *filename) { FILE *fp = fopen(filename,"r"); char buf[LINENOISE_MAX_LINE]; if (fp == NULL) return -1; while (fgets(buf,LINENOISE_MAX_LINE,fp) != NULL) { char *p; p = strchr(buf,'\r'); if (!p) p = strchr(buf,'\n'); if (p) *p = '\0'; linenoiseHistoryAdd(buf); } fclose(fp); return 0; } redis-2.6.16/deps/linenoise/linenoise.h000066400000000000000000000046421220734223100177740ustar00rootroot00000000000000/* linenoise.h -- guerrilla line editing library against the idea that a * line editing lib needs to be 20,000 lines of C code. * * See linenoise.c for more information. * * Copyright (c) 2010, Salvatore Sanfilippo * Copyright (c) 2010, Pieter Noordhuis * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __LINENOISE_H #define __LINENOISE_H typedef struct linenoiseCompletions { size_t len; char **cvec; } linenoiseCompletions; typedef void(linenoiseCompletionCallback)(const char *, linenoiseCompletions *); void linenoiseSetCompletionCallback(linenoiseCompletionCallback *); void linenoiseAddCompletion(linenoiseCompletions *, char *); char *linenoise(const char *prompt); int linenoiseHistoryAdd(const char *line); int linenoiseHistorySetMaxLen(int len); int linenoiseHistorySave(char *filename); int linenoiseHistoryLoad(char *filename); void linenoiseClearScreen(void); #endif /* __LINENOISE_H */ redis-2.6.16/deps/lua/000077500000000000000000000000001220734223100144245ustar00rootroot00000000000000redis-2.6.16/deps/lua/COPYRIGHT000066400000000000000000000027701220734223100157250ustar00rootroot00000000000000Lua License ----------- Lua is licensed under the terms of the MIT license reproduced below. This means that Lua is free software and can be used for both academic and commercial purposes at absolutely no cost. For details and rationale, see http://www.lua.org/license.html . =============================================================================== Copyright (C) 1994-2012 Lua.org, PUC-Rio. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. =============================================================================== (end of COPYRIGHT) redis-2.6.16/deps/lua/HISTORY000066400000000000000000000173431220734223100155200ustar00rootroot00000000000000HISTORY for Lua 5.1 * Changes from version 5.0 to 5.1 ------------------------------- Language: + new module system. + new semantics for control variables of fors. + new semantics for setn/getn. + new syntax/semantics for varargs. + new long strings and comments. + new `mod' operator (`%') + new length operator #t + metatables for all types API: + new functions: lua_createtable, lua_get(set)field, lua_push(to)integer. + user supplies memory allocator (lua_open becomes lua_newstate). + luaopen_* functions must be called through Lua. Implementation: + new configuration scheme via luaconf.h. + incremental garbage collection. + better handling of end-of-line in the lexer. + fully reentrant parser (new Lua function `load') + better support for 64-bit machines. + native loadlib support for Mac OS X. + standard distribution in only one library (lualib.a merged into lua.a) * Changes from version 4.0 to 5.0 ------------------------------- Language: + lexical scoping. + Lua coroutines. + standard libraries now packaged in tables. + tags replaced by metatables and tag methods replaced by metamethods, stored in metatables. + proper tail calls. + each function can have its own global table, which can be shared. + new __newindex metamethod, called when we insert a new key into a table. + new block comments: --[[ ... ]]. + new generic for. + new weak tables. + new boolean type. + new syntax "local function". + (f()) returns the first value returned by f. + {f()} fills a table with all values returned by f. + \n ignored in [[\n . + fixed and-or priorities. + more general syntax for function definition (e.g. function a.x.y:f()...end). + more general syntax for function calls (e.g. (print or write)(9)). + new functions (time/date, tmpfile, unpack, require, load*, etc.). API: + chunks are loaded by using lua_load; new luaL_loadfile and luaL_loadbuffer. + introduced lightweight userdata, a simple "void*" without a metatable. + new error handling protocol: the core no longer prints error messages; all errors are reported to the caller on the stack. + new lua_atpanic for host cleanup. + new, signal-safe, hook scheme. Implementation: + new license: MIT. + new, faster, register-based virtual machine. + support for external multithreading and coroutines. + new and consistent error message format. + the core no longer needs "stdio.h" for anything (except for a single use of sprintf to convert numbers to strings). + lua.c now runs the environment variable LUA_INIT, if present. It can be "@filename", to run a file, or the chunk itself. + support for user extensions in lua.c. sample implementation given for command line editing. + new dynamic loading library, active by default on several platforms. + safe garbage-collector metamethods. + precompiled bytecodes checked for integrity (secure binary dostring). + strings are fully aligned. + position capture in string.find. + read('*l') can read lines with embedded zeros. * Changes from version 3.2 to 4.0 ------------------------------- Language: + new "break" and "for" statements (both numerical and for tables). + uniform treatment of globals: globals are now stored in a Lua table. + improved error messages. + no more '$debug': full speed *and* full debug information. + new read form: read(N) for next N bytes. + general read patterns now deprecated. (still available with -DCOMPAT_READPATTERNS.) + all return values are passed as arguments for the last function (old semantics still available with -DLUA_COMPAT_ARGRET) + garbage collection tag methods for tables now deprecated. + there is now only one tag method for order. API: + New API: fully re-entrant, simpler, and more efficient. + New debug API. Implementation: + faster than ever: cleaner virtual machine and new hashing algorithm. + non-recursive garbage-collector algorithm. + reduced memory usage for programs with many strings. + improved treatment for memory allocation errors. + improved support for 16-bit machines (we hope). + code now compiles unmodified as both ANSI C and C++. + numbers in bases other than 10 are converted using strtoul. + new -f option in Lua to support #! scripts. + luac can now combine text and binaries. * Changes from version 3.1 to 3.2 ------------------------------- + redirected all output in Lua's core to _ERRORMESSAGE and _ALERT. + increased limit on the number of constants and globals per function (from 2^16 to 2^24). + debugging info (lua_debug and hooks) moved into lua_state and new API functions provided to get and set this info. + new debug lib gives full debugging access within Lua. + new table functions "foreachi", "sort", "tinsert", "tremove", "getn". + new io functions "flush", "seek". * Changes from version 3.0 to 3.1 ------------------------------- + NEW FEATURE: anonymous functions with closures (via "upvalues"). + new syntax: - local variables in chunks. - better scope control with DO block END. - constructors can now be also written: { record-part; list-part }. - more general syntax for function calls and lvalues, e.g.: f(x).y=1 o:f(x,y):g(z) f"string" is sugar for f("string") + strings may now contain arbitrary binary data (e.g., embedded zeros). + major code re-organization and clean-up; reduced module interdependecies. + no arbitrary limits on the total number of constants and globals. + support for multiple global contexts. + better syntax error messages. + new traversal functions "foreach" and "foreachvar". + the default for numbers is now double. changing it to use floats or longs is easy. + complete debug information stored in pre-compiled chunks. + sample interpreter now prompts user when run interactively, and also handles control-C interruptions gracefully. * Changes from version 2.5 to 3.0 ------------------------------- + NEW CONCEPT: "tag methods". Tag methods replace fallbacks as the meta-mechanism for extending the semantics of Lua. Whereas fallbacks had a global nature, tag methods work on objects having the same tag (e.g., groups of tables). Existing code that uses fallbacks should work without change. + new, general syntax for constructors {[exp] = exp, ... }. + support for handling variable number of arguments in functions (varargs). + support for conditional compilation ($if ... $else ... $end). + cleaner semantics in API simplifies host code. + better support for writing libraries (auxlib.h). + better type checking and error messages in the standard library. + luac can now also undump. * Changes from version 2.4 to 2.5 ------------------------------- + io and string libraries are now based on pattern matching; the old libraries are still available for compatibility + dofile and dostring can now return values (via return statement) + better support for 16- and 64-bit machines + expanded documentation, with more examples * Changes from version 2.2 to 2.4 ------------------------------- + external compiler creates portable binary files that can be loaded faster + interface for debugging and profiling + new "getglobal" fallback + new functions for handling references to Lua objects + new functions in standard lib + only one copy of each string is stored + expanded documentation, with more examples * Changes from version 2.1 to 2.2 ------------------------------- + functions now may be declared with any "lvalue" as a name + garbage collection of functions + support for pipes * Changes from version 1.1 to 2.1 ------------------------------- + object-oriented support + fallbacks + simplified syntax for tables + many internal improvements (end of HISTORY) redis-2.6.16/deps/lua/INSTALL000066400000000000000000000074341220734223100154650ustar00rootroot00000000000000INSTALL for Lua 5.1 * Building Lua ------------ Lua is built in the src directory, but the build process can be controlled from the top-level Makefile. Building Lua on Unix systems should be very easy. First do "make" and see if your platform is listed. If so, just do "make xxx", where xxx is your platform name. The platforms currently supported are: aix ansi bsd freebsd generic linux macosx mingw posix solaris If your platform is not listed, try the closest one or posix, generic, ansi, in this order. See below for customization instructions and for instructions on how to build with other Windows compilers. If you want to check that Lua has been built correctly, do "make test" after building Lua. Also, have a look at the example programs in test. * Installing Lua -------------- Once you have built Lua, you may want to install it in an official place in your system. In this case, do "make install". The official place and the way to install files are defined in Makefile. You must have the right permissions to install files. If you want to build and install Lua in one step, do "make xxx install", where xxx is your platform name. If you want to install Lua locally, then do "make local". This will create directories bin, include, lib, man, and install Lua there as follows: bin: lua luac include: lua.h luaconf.h lualib.h lauxlib.h lua.hpp lib: liblua.a man/man1: lua.1 luac.1 These are the only directories you need for development. There are man pages for lua and luac, in both nroff and html, and a reference manual in html in doc, some sample code in test, and some useful stuff in etc. You don't need these directories for development. If you want to install Lua locally, but in some other directory, do "make install INSTALL_TOP=xxx", where xxx is your chosen directory. See below for instructions for Windows and other systems. * Customization ------------- Three things can be customized by editing a file: - Where and how to install Lua -- edit Makefile. - How to build Lua -- edit src/Makefile. - Lua features -- edit src/luaconf.h. You don't actually need to edit the Makefiles because you may set the relevant variables when invoking make. On the other hand, if you need to select some Lua features, you'll need to edit src/luaconf.h. The edited file will be the one installed, and it will be used by any Lua clients that you build, to ensure consistency. We strongly recommend that you enable dynamic loading. This is done automatically for all platforms listed above that have this feature (and also Windows). See src/luaconf.h and also src/Makefile. * Building Lua on Windows and other systems ----------------------------------------- If you're not using the usual Unix tools, then the instructions for building Lua depend on the compiler you use. You'll need to create projects (or whatever your compiler uses) for building the library, the interpreter, and the compiler, as follows: library: lapi.c lcode.c ldebug.c ldo.c ldump.c lfunc.c lgc.c llex.c lmem.c lobject.c lopcodes.c lparser.c lstate.c lstring.c ltable.c ltm.c lundump.c lvm.c lzio.c lauxlib.c lbaselib.c ldblib.c liolib.c lmathlib.c loslib.c ltablib.c lstrlib.c loadlib.c linit.c interpreter: library, lua.c compiler: library, luac.c print.c If you use Visual Studio .NET, you can use etc/luavs.bat in its "Command Prompt". If all you want is to build the Lua interpreter, you may put all .c files in a single project, except for luac.c and print.c. Or just use etc/all.c. To use Lua as a library in your own programs, you'll need to know how to create and use libraries with your compiler. As mentioned above, you may edit luaconf.h to select some features before building Lua. (end of INSTALL) redis-2.6.16/deps/lua/Makefile000066400000000000000000000071571220734223100160760ustar00rootroot00000000000000# makefile for installing Lua # see INSTALL for installation instructions # see src/Makefile and src/luaconf.h for further customization # == CHANGE THE SETTINGS BELOW TO SUIT YOUR ENVIRONMENT ======================= # Your platform. See PLATS for possible values. PLAT= none # Where to install. The installation starts in the src and doc directories, # so take care if INSTALL_TOP is not an absolute path. INSTALL_TOP= /usr/local INSTALL_BIN= $(INSTALL_TOP)/bin INSTALL_INC= $(INSTALL_TOP)/include INSTALL_LIB= $(INSTALL_TOP)/lib INSTALL_MAN= $(INSTALL_TOP)/man/man1 # # You probably want to make INSTALL_LMOD and INSTALL_CMOD consistent with # LUA_ROOT, LUA_LDIR, and LUA_CDIR in luaconf.h (and also with etc/lua.pc). INSTALL_LMOD= $(INSTALL_TOP)/share/lua/$V INSTALL_CMOD= $(INSTALL_TOP)/lib/lua/$V # How to install. If your install program does not support "-p", then you # may have to run ranlib on the installed liblua.a (do "make ranlib"). INSTALL= install -p INSTALL_EXEC= $(INSTALL) -m 0755 INSTALL_DATA= $(INSTALL) -m 0644 # # If you don't have install you can use cp instead. # INSTALL= cp -p # INSTALL_EXEC= $(INSTALL) # INSTALL_DATA= $(INSTALL) # Utilities. MKDIR= mkdir -p RANLIB= ranlib # == END OF USER SETTINGS. NO NEED TO CHANGE ANYTHING BELOW THIS LINE ========= # Convenience platforms targets. PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris # What to install. TO_BIN= lua luac TO_INC= lua.h luaconf.h lualib.h lauxlib.h ../etc/lua.hpp TO_LIB= liblua.a TO_MAN= lua.1 luac.1 # Lua version and release. V= 5.1 R= 5.1.5 all: $(PLAT) $(PLATS) clean: cd src && $(MAKE) $@ test: dummy src/lua test/hello.lua install: dummy cd src && $(MKDIR) $(INSTALL_BIN) $(INSTALL_INC) $(INSTALL_LIB) $(INSTALL_MAN) $(INSTALL_LMOD) $(INSTALL_CMOD) cd src && $(INSTALL_EXEC) $(TO_BIN) $(INSTALL_BIN) cd src && $(INSTALL_DATA) $(TO_INC) $(INSTALL_INC) cd src && $(INSTALL_DATA) $(TO_LIB) $(INSTALL_LIB) cd doc && $(INSTALL_DATA) $(TO_MAN) $(INSTALL_MAN) ranlib: cd src && cd $(INSTALL_LIB) && $(RANLIB) $(TO_LIB) local: $(MAKE) install INSTALL_TOP=.. none: @echo "Please do" @echo " make PLATFORM" @echo "where PLATFORM is one of these:" @echo " $(PLATS)" @echo "See INSTALL for complete instructions." # make may get confused with test/ and INSTALL in a case-insensitive OS dummy: # echo config parameters echo: @echo "" @echo "These are the parameters currently set in src/Makefile to build Lua $R:" @echo "" @cd src && $(MAKE) -s echo @echo "" @echo "These are the parameters currently set in Makefile to install Lua $R:" @echo "" @echo "PLAT = $(PLAT)" @echo "INSTALL_TOP = $(INSTALL_TOP)" @echo "INSTALL_BIN = $(INSTALL_BIN)" @echo "INSTALL_INC = $(INSTALL_INC)" @echo "INSTALL_LIB = $(INSTALL_LIB)" @echo "INSTALL_MAN = $(INSTALL_MAN)" @echo "INSTALL_LMOD = $(INSTALL_LMOD)" @echo "INSTALL_CMOD = $(INSTALL_CMOD)" @echo "INSTALL_EXEC = $(INSTALL_EXEC)" @echo "INSTALL_DATA = $(INSTALL_DATA)" @echo "" @echo "See also src/luaconf.h ." @echo "" # echo private config parameters pecho: @echo "V = $(V)" @echo "R = $(R)" @echo "TO_BIN = $(TO_BIN)" @echo "TO_INC = $(TO_INC)" @echo "TO_LIB = $(TO_LIB)" @echo "TO_MAN = $(TO_MAN)" # echo config parameters as Lua code # uncomment the last sed expression if you want nil instead of empty strings lecho: @echo "-- installation parameters for Lua $R" @echo "VERSION = '$V'" @echo "RELEASE = '$R'" @$(MAKE) echo | grep = | sed -e 's/= /= "/' -e 's/$$/"/' #-e 's/""/nil/' @echo "-- EOF" # list targets that do not create files (but not all makes understand .PHONY) .PHONY: all $(PLATS) clean test install local none dummy echo pecho lecho # (end of Makefile) redis-2.6.16/deps/lua/README000066400000000000000000000025421220734223100153070ustar00rootroot00000000000000README for Lua 5.1 See INSTALL for installation instructions. See HISTORY for a summary of changes since the last released version. * What is Lua? ------------ Lua is a powerful, light-weight programming language designed for extending applications. Lua is also frequently used as a general-purpose, stand-alone language. Lua is free software. For complete information, visit Lua's web site at http://www.lua.org/ . For an executive summary, see http://www.lua.org/about.html . Lua has been used in many different projects around the world. For a short list, see http://www.lua.org/uses.html . * Availability ------------ Lua is freely available for both academic and commercial purposes. See COPYRIGHT and http://www.lua.org/license.html for details. Lua can be downloaded at http://www.lua.org/download.html . * Installation ------------ Lua is implemented in pure ANSI C, and compiles unmodified in all known platforms that have an ANSI C compiler. In most Unix-like platforms, simply do "make" with a suitable target. See INSTALL for detailed instructions. * Origin ------ Lua is developed at Lua.org, a laboratory of the Department of Computer Science of PUC-Rio (the Pontifical Catholic University of Rio de Janeiro in Brazil). For more information about the authors, see http://www.lua.org/authors.html . (end of README) redis-2.6.16/deps/lua/doc/000077500000000000000000000000001220734223100151715ustar00rootroot00000000000000redis-2.6.16/deps/lua/doc/contents.html000066400000000000000000000537221220734223100177250ustar00rootroot00000000000000 Lua 5.1 Reference Manual - contents

Lua 5.1 Reference Manual

The reference manual is the official definition of the Lua language. For a complete introduction to Lua programming, see the book Programming in Lua.

This manual is also available as a book:

Lua 5.1 Reference Manual
by R. Ierusalimschy, L. H. de Figueiredo, W. Celes
Lua.org, August 2006
ISBN 85-903798-3-3

Buy a copy of this book and help to support the Lua project.

start · contents · index · other versions

Copyright © 2006–2012 Lua.org, PUC-Rio. Freely available under the terms of the Lua license.

Contents

Index

Lua functions

_G
_VERSION

assert
collectgarbage
dofile
error
getfenv
getmetatable
ipairs
load
loadfile
loadstring
module
next
pairs
pcall
print
rawequal
rawget
rawset
require
select
setfenv
setmetatable
tonumber
tostring
type
unpack
xpcall

coroutine.create
coroutine.resume
coroutine.running
coroutine.status
coroutine.wrap
coroutine.yield

debug.debug
debug.getfenv
debug.gethook
debug.getinfo
debug.getlocal
debug.getmetatable
debug.getregistry
debug.getupvalue
debug.setfenv
debug.sethook
debug.setlocal
debug.setmetatable
debug.setupvalue
debug.traceback

 

file:close
file:flush
file:lines
file:read
file:seek
file:setvbuf
file:write

io.close
io.flush
io.input
io.lines
io.open
io.output
io.popen
io.read
io.stderr
io.stdin
io.stdout
io.tmpfile
io.type
io.write

math.abs
math.acos
math.asin
math.atan
math.atan2
math.ceil
math.cos
math.cosh
math.deg
math.exp
math.floor
math.fmod
math.frexp
math.huge
math.ldexp
math.log
math.log10
math.max
math.min
math.modf
math.pi
math.pow
math.rad
math.random
math.randomseed
math.sin
math.sinh
math.sqrt
math.tan
math.tanh

os.clock
os.date
os.difftime
os.execute
os.exit
os.getenv
os.remove
os.rename
os.setlocale
os.time
os.tmpname

package.cpath
package.loaded
package.loaders
package.loadlib
package.path
package.preload
package.seeall

string.byte
string.char
string.dump
string.find
string.format
string.gmatch
string.gsub
string.len
string.lower
string.match
string.rep
string.reverse
string.sub
string.upper

table.concat
table.insert
table.maxn
table.remove
table.sort

C API

lua_Alloc
lua_CFunction
lua_Debug
lua_Hook
lua_Integer
lua_Number
lua_Reader
lua_State
lua_Writer

lua_atpanic
lua_call
lua_checkstack
lua_close
lua_concat
lua_cpcall
lua_createtable
lua_dump
lua_equal
lua_error
lua_gc
lua_getallocf
lua_getfenv
lua_getfield
lua_getglobal
lua_gethook
lua_gethookcount
lua_gethookmask
lua_getinfo
lua_getlocal
lua_getmetatable
lua_getstack
lua_gettable
lua_gettop
lua_getupvalue
lua_insert
lua_isboolean
lua_iscfunction
lua_isfunction
lua_islightuserdata
lua_isnil
lua_isnone
lua_isnoneornil
lua_isnumber
lua_isstring
lua_istable
lua_isthread
lua_isuserdata
lua_lessthan
lua_load
lua_newstate
lua_newtable
lua_newthread
lua_newuserdata
lua_next
lua_objlen
lua_pcall
lua_pop
lua_pushboolean
lua_pushcclosure
lua_pushcfunction
lua_pushfstring
lua_pushinteger
lua_pushlightuserdata
lua_pushliteral
lua_pushlstring
lua_pushnil
lua_pushnumber
lua_pushstring
lua_pushthread
lua_pushvalue
lua_pushvfstring
lua_rawequal
lua_rawget
lua_rawgeti
lua_rawset
lua_rawseti
lua_register
lua_remove
lua_replace
lua_resume
lua_setallocf
lua_setfenv
lua_setfield
lua_setglobal
lua_sethook
lua_setlocal
lua_setmetatable
lua_settable
lua_settop
lua_setupvalue
lua_status
lua_toboolean
lua_tocfunction
lua_tointeger
lua_tolstring
lua_tonumber
lua_topointer
lua_tostring
lua_tothread
lua_touserdata
lua_type
lua_typename
lua_upvalueindex
lua_xmove
lua_yield

auxiliary library

luaL_Buffer
luaL_Reg

luaL_addchar
luaL_addlstring
luaL_addsize
luaL_addstring
luaL_addvalue
luaL_argcheck
luaL_argerror
luaL_buffinit
luaL_callmeta
luaL_checkany
luaL_checkint
luaL_checkinteger
luaL_checklong
luaL_checklstring
luaL_checknumber
luaL_checkoption
luaL_checkstack
luaL_checkstring
luaL_checktype
luaL_checkudata
luaL_dofile
luaL_dostring
luaL_error
luaL_getmetafield
luaL_getmetatable
luaL_gsub
luaL_loadbuffer
luaL_loadfile
luaL_loadstring
luaL_newmetatable
luaL_newstate
luaL_openlibs
luaL_optint
luaL_optinteger
luaL_optlong
luaL_optlstring
luaL_optnumber
luaL_optstring
luaL_prepbuffer
luaL_pushresult
luaL_ref
luaL_register
luaL_typename
luaL_typerror
luaL_unref
luaL_where

Last update: Mon Feb 13 18:53:32 BRST 2012 redis-2.6.16/deps/lua/doc/cover.png000066400000000000000000000063511220734223100170220ustar00rootroot00000000000000‰PNG  IHDRE^úþN&gAMA± üa8tEXtSoftwareXV Version 3.10a Rev: 12/29/94 (PNG patch 1.2)Ý.I IIDATxœí›KpÇyÇÝ3³³,°xc$@IQ/Êõ £Š•9©r¬“ËÇåª|ÐMÖÕG_tñ%/ù¸T©T"Ç©r$ÅŠhš*‹IñR$$‚Øžg¦ÛìbÀØ"¢Â¿pÀÎôtÿùúëþ¾¯¿üã)¾B[€c‡ÏöÆŸí>Û+ùHh± ôCfm8.™™E]Îõð¼¢®äÓ0~°¿«;dëlz9ÞüýáŽÛüRD^S³,dÉqÜÒ•tŽ ×™O¯h¸RV}áÀ³]Ñ绢-£;d$s³3.Z³¥¥  %‚R°;Ž±¬íJ>É¢ûOïáVº)ºa)¯e‹@µ¨q= ‰«°ŒRÇ¢tå!eiì„Ò¸Ñ0®ÇØÃýA8ˆR¾ºÖâãe Î_§P¤³•L­hŽ ®‡iàz(ãÒÝÆ¥Qz;¹z“=½Ø "aLƒT†\½ýØV#ø(†úh ÜOâ)Lc­¶«lCk´&•!•AJ<ÅlË àPpØgb†Hˆù€mqiÓ`t¥èíäÎ –I&‡ë1Ô×2‹"Mΰ'Ž«J‹Á\ŠÖ檋Ö*>v€ý쎓L¶AËÓ%™Æ¶h ‹¢5mQ:[io¡»C2ŸÆ¶ˆE‰5áxxŠ€‰Õ …Ä2‰wp÷>bÑfRØÕö¿V¼ —µ*ý«®/5ËŸj„álÕæÛjèÿˆŠÆËH4–°’OØ”‡ca dJ­QZ§ÏQºÍ6SŽ¢¨tÒñ:m3 eÎóZss’ÑI^:J$´ì–R$R\åÂu&¦YÈáº(Ó$$ÞΡ!¦» £LLL£"¾BÒ5ÆñIçøì*/mÙ0J1=Ço?åôÉt•·[$_$‘äÒ¿>Éá!^y†Á8†AÀdo?ãw« &Ø?°¡rØäz°¸”Y&Ãý„C%>‹KíGgøů¹ØÝÊß¼²r4ŒOÑá ºÛ±LŸL2Í¿ü†÷?!›_—É–Ž©]F'¸q‡Á>ú:ééàÆÙ|9É+ˆwð½o2г5óMkÎ\Á4‘§&s)þá=Fnµ0‘RîÞÝýÔS{#‘àíÛ³gÏÞ˜¿6ÎÏÿ¿ý+¦¿‹Ï®pë.R0ØÇ“ˆ5Õè"lŠOs„ýþ™¿øï2™‰ßxã¯ô£ott´H)ǽxñÖ›oþóœÓÿüÝwèiç•gP!XÈÊkÚ¸_ ntѾùg‰®Ç¯Npáz†üÉO^ë­×ãñ6Ë2 Cƒ£G‡ßyççž;Èä ÿúr„ÀH!ùäÅj¹òð™_àÜ€o6—GùølÍŽ³>|xà‡?üº¹ÜsBôô´¾õÖë¶mqy”ΠÊ9çHˆ}¤s5P­¹‘(×㜾L:[ú_Ãt‚kãµÌêšùh˜œ%•)iCC"Åh}Ê>üðüýû©Õ‡èZëS§FîÞM H$ôo÷u²­%¾­]?šK7ÈWœcßœ"[«™–!®^½óöÛï ÅJJZëÛ·g~úÓ_‹åCOqõª|nkæØ‘Z¨yÿÑ`D#å(KskªŠ{¶”R?ûÙ¿§Ó¹ÿøµ¾¾v)e>_<}úÚ›o¾súôõe½ßÅóf‰’çal\àT3/>Q.Òš™¹uX³£|¾øöÛï½ûî‰Ã‡"‘àÄDbdd<“É/5‚ùÏßèN~¾<æ­Žzôã¸Ëød7]C!´fjjnj*±t¥ŠžóE\lÿŠã®L,¡fûq\þ÷´¿†j]-¬b=ÏUéŠj Á‘ašÂöX³~¤ _DiŒòsÍØ«!0 ?àÕšÎlRïð— ñöMˆY:[}>žbäfõÚ¯å¨g?ŸöÝ*ƒ}ëÔ=6C}~ˆUtj,¬ÇßYL²éò××I,ºU9i;À#{|s±-þì¨OomÔç§ Ëôå†92\Ÿ”µB3ÐCo‡¿wC©,w#ÔÌG@8ÈÓ‡*²‚ž \ï©ÍAJ^|ÂOX;.¿=S£ã[§íºÜ¹Wžr‚]Ý<}°ÑSN3ØË“|mLÌ`ÈZ’Ulæüç“‹~(bH¾ñ<­£¤ Ú¼vœp…Ú›B<ýHù:ùX&1]öS„ «•ïü9v ¾~ÖGòê1îñCFÏ£#Vû^W'!8°›ÁÞRÙù╧ð—ZNÕ>„àùÇyõ˜ï%Š|ðéê¢þuPÿ|“ oø»µaðòŸðíãØÍRÒHÉ óÝW|UkÍÙ/èh©«.}SùQ·ï16Á@wib’Á>ºÛ›$—¯Ó©Ó„ƒ|ëE^;N0°ÌNB6{⾺jÀæøºÚ(ikñ]F)éíäÈ^2yfçkó¾5†ÁÝ|ï›<ó(Šìñl ]y³¡h›?o\4¡DŠÖf1]<àãϸ<ÆB¶bT~B ²·ŸäðÐ2µhÍíiN]àëÏÑ©W¨8/¥ùü¦É³GJ³\,“ý ÷3Ÿfl‚ëÜe!CÁÁ2‰„ènc¨¡>:bÕOu2y^=Ftãh§ŠPz츌Üd¨¯”g\!œ­Q O¡RbH¤D¬n©Éæ¹=;’Ÿ¶©o¡¸žÂ29²—HDŠ3WÈæ–yõ¤À4°-B6¶…i EY)þëwxªDu³v5¢>dqøh)øè,®WRȆáŠÖdrÜšÂóh ó­84Xï°«§XÛ;|¶7vøloìðÙÞøªñù#›´Ìˆ,`qûtIMEÖ7µ¬#IEND®B`‚redis-2.6.16/deps/lua/doc/logo.gif000066400000000000000000000102101220734223100166120ustar00rootroot00000000000000GIF87a€€÷rvz}~ oooqqqvvvzzz€ƒ „‚…†…‡ˆŠŠŒ‹!!Ž%%""%%‘))’,,“55—11•55™11˜::š::œ??BBŸDDžBB EE¡JJ£HH¤LL£MM¥PP§TT¦QQ¨WW«YYªZZ¬\\«^^­``¯cc±gg±ii³jj³oo·ll´qq·vv»tt¹yy»{{½¿~~½‚‚‚………ˆˆˆŽŽŽ•••›››€€¿¡¡¡¥¥¥©©©­­­³³³···¹¹¹½½½ƒƒÁ‡‡Â‰‰Ã‹‹ÅŽŽÆÇ’’È••Ê™™Ë™™ÌŸŸÏ¡¡Ï¢¢Ñ¥¥Ò©©Ó©©Ô­­Ö¯¯×±±×±±ØµµÚ»»Ý¼¼ÝÃÃÃÇÇÇÊÊÊÌÌÌÀÀßÒÒÒÕÕÕØØØÝÝÝÁÁàÇÇãÇÇäÉÉäÊÊåÎÎæÐÐçÓÓéÕÕêØØëÚÚìÝÝîáááåååààïêêêîîîââðææóèèóééôîîöñññðð÷õõõóóù÷÷ûùùùûûýÿÿÿ,€€þ' H° Áƒ*\È°¡Ã‡#JœH±¢Å‹3jÜȱ£Ç CŠI²¤É“(Sª\ɲ¥Ë—0cÊœI¡¤›“pÖ´‰Q¡:†Ä(RJI;HGSSFAP¤È‘A™!rC+j Dš´ #:S’ Y:‰A… ±mûSNF1™Rg.Ä=2 @˜°€ ;•5ÈA)s.:’‚Ä)•ˆv 0`ƒÏŸlnp¥¬#‚‚‚rdÔDD#xЙ¶èÎ 6¿€43œ#LTFy“P‘‡¹E+¯]Ûs€2ÝQkÊ( Œ¸ñ;©òËÃþ‡gÀGΗP¢œfÉh ‚(½ oNÿ¶råØ,NiHµÀG0^sËÙ&À *92…;!†lX_mw DGU…ì7É DXŸ„ä qIRw5E¢A‡á&9¢„é¤ÐMdMDH´M(Þ‡hcYC$É#ˆÈ!ˆ~8@I$~!„ $pP |æ@ ƒcø1ä“ù1a•bR®I”ã!`È`aÐã ÆY2€qÈkD–;P€ žvæâœÊ}6jèàÇ“Ø0ß}ÖF^ipZDÇ‘Eä‡ pöhÛ2+a„r&C ¡Áª}t.G¹EbÝCŠäí |Ú,¸sâ6ê9 ’Pç¶( y0¼DÖpV¯£éëêft%AfÃÀ.KH¢‚Â?,°‡În–‚b9"•Ã|/Gž±†âAH™‘ðÂ"çÜâ}ž A#ŽµÂwÜú:p;x…ë5$„ öŽ¬s•E-ÀI"ƒÂ¢;[XwÇu8¤5Ñ!K­¶€žV¯}äÅÀ[A]$Ü©¨ƒep†þG… pYCœ@ôÚ„Óçkn†:mä™ VªŠXÑÁf€2 BYzD‡3ô ,.zsƒ9PBD\ñƒ lf4y",Bscdq…f(6ñJ˜°ì袋@\ø[$zäÐ@‡¸@Bæ©Úô’ ˦=5É¢EÊ8H D“kÖ8F{R= ~}Î `»g-в1€,RöBHúú„ÍŽe¾-M‚õsŽÄ ø‘(¡!{àQÔHµm ` AcRf¡ìé¡!‚ÈF ‘&D `ðDvŸòdÐ!Š°éB07…¼ ªˆˆ,^l…þØ£RP¥§Ih¡~ô @r)`$ hCö@€AÑG"yXœ møàBÜÀ4Œ¢i YÁ¹(DûÀÙàï †8¢& ‰¹¼ÆF+1«›Rººh ‘KIHÀ¢+ Œ@†EÂæùJ IÅé*Á #R²WûÈðÂDBhD ,ÉÉ6¶o| ¥mÀ#ˆDxBôЪVúÑ@’Œã$ì ÂY  B yC†$B*$} ëZ¿EŸ @¯ˆþûasPJ‚áoQ|ò Η?B×Yeå†JB¤ ‰8µþJH,ùÅižóuJì&àÌ9Áö™a!r(#D|ƒé­,9|D'¨yF)_€ÃÈs¶tðˆ$ @<šGl ¤¾2d8‡†rDJ £5ƒg¥0²ôx“ÐAÿ9€=e`X£Iñ5:?iQ\<`Ê,òxá§AŠPµ©ÓòôW†Ü âT#R•9ÛÄêC „Ĭ4šáz9µ®âGbØRù¢ˆ4ò¤†$C:w:$À¦DbÊ6C^ЊöUë f¨!AA„„ݦ‚¢±€f â$„Ô!p0aÑ(G+`þÈ"(ÐÏÂÙu– ”b@„/€a =(yXØ#è.!E°TCªàÌ]rëWä‰í$fËF°ÊÕh…½ÖF:v" UxH‚£5(µ9Ñ•-m¥)5ÀÒ5Tn{Ûõ ©†…2^o'€ÞЯÁ·ÑC–h >¸@ŒÇ³ƒŽì,ÿFµ!QHÂþB6IÍ( øEú9à“EóÜà;´ÄC\ð×ohæ«Ã2B5+$T}mˆ¥üHCÆÙ‡:V²–œGj€Ð”Mâ“™0¨$8Ñ!mhîApÚfÿBø½õÉ@ m¸:OâÎ<6êt}—Ýpá<1@"Ét$Hµ ¬"BíZû-š…²–³6élg¢q€,:@|PÝ aÎFƒ€ñ #äQ!…a'±ª‚ŠÆÍìõQ´i] ±Þú;$‘ˆ}–^óV_xpm…ûÛŸ½¦èÿªÍѳ·­qÍ8K`–m[@à(m`Ñq! B¬‚þ¿ ã/Â[mÇrg&^½âÒ&qt$ ½¡ 6g)ûlõ³žò Ù×];ñ•FðpÁHAŠ±(€ƒª„µ”½ÍÉ]•r ±Æ‚bú`QAàFkÀq72ˆ-®KMâΧüh‰ x’w²ˆ=XŸvûëA@—@m‡þêˆÆºíX½ÝZO/ ?xÁ¼ă( æ+„DÞí,d9}·«EÌvž« XÔ½ë•äIe 0Ôç¯ë]4y£Ö}'W!)„îè] ´B|§æFq± D ÀͧŽ?sü„€!¾ŸÈŒþ€¬#F“ð3ž¾ø_çÓ£738® N>ãÌ@¹ï8’õl¾HÁ q„[ ‚ˆ‹·JƱ7(hEÑ6,sIúë7)¡F0晄Vp€Ÿõ„°ƒ`ƒö[%W2Æ5fc"8‚´ät.ÕAa£€ó!DÔ@Ûàiä_¤qeG#ÑUT4é…‹P„Fx„E vDæa~ ûR¿ ºtçñ<"(ò„W´Al-á‚–[±uf²$P%~°w9W@ÁxÀwH‘vÀ{9wh“Vð6à5Pþ… \ ñ"uf欖oDd2¨g«×>6-c0(°Y<¶ °1"1°òOö*p)Њ®øŠ®¨Pˆ€À’€j ‚Ò* 2Ô5ðŠ ’ „0% (@™ÃŸBaƒnSÀ{ ãDN/%J…ÒÞø ƒà ¬(3  À›b1´$ X§]‡RPñ‡Å9çZÑ*)~Æ÷NèØ-¢ô#…r]¢Ž¾N§Œ ŠhGpl Ñ^@FY½4}b/äÁM !ª¥ŠÄ0ìU|Me=édþE$Ó>pM ‘‰~ðrÕJ¶å-&&@.\ ÖØ87{¾¤3`%0‡ds+1Hhó“ÕÕ2Ÿõ2PéK€ü3 W0•ÄuEîÕ)*…U))+ °@5ö0ÓÔF¡tÈE™O‘KÐH¡P@}ä^ ™jµH0}““ùU`10 k•å’¹Ec VUK$A€—_z `ÇT„EΑUÉ•4A„ÁÖ“<Rà¨rf“PGÉ£‚ž¹BõÁz°a"gd6“€2(¹šayImø›Fà¶"q°ŒÂc¿ô“õ("þgA™yƒ€P0i@ÛeESÒ˜Ž’»‚Yç‚O9b4»"}Ù"x@'P€‚upj¡` ‚±Ÿ¸õ2¡¢2,*ðã&îq ¿Ù•¡f%àE‰³+’]‚B%f0‰²Y…ðJ3žÓf ?€1à,À/p?€;}XV5úQ€˜%H1Z4JmpOP›7¢dÑ=Oô Ày;!Ó‘peq!F¦û PP-eKfw¤¿é.lzp`š- jù¦Ñ`o@¥¦EPOv*‘Rz††UP u¨Á§…S@©Ä¨!IàO*…PáE©AO` p\ú‘ª P ê©1{:ƒ€LS€¦“PU@Q°êzRЙʪ#4PÀG`‡Š—N¬ÂÚ¬Îú¬Ð­Òê;redis-2.6.16/deps/lua/doc/lua.1000066400000000000000000000070431220734223100160400ustar00rootroot00000000000000.\" $Id: lua.man,v 1.11 2006/01/06 16:03:34 lhf Exp $ .TH LUA 1 "$Date: 2006/01/06 16:03:34 $" .SH NAME lua \- Lua interpreter .SH SYNOPSIS .B lua [ .I options ] [ .I script [ .I args ] ] .SH DESCRIPTION .B lua is the stand-alone Lua interpreter. It loads and executes Lua programs, either in textual source form or in precompiled binary form. (Precompiled binaries are output by .BR luac , the Lua compiler.) .B lua can be used as a batch interpreter and also interactively. .LP The given .I options (see below) are executed and then the Lua program in file .I script is loaded and executed. The given .I args are available to .I script as strings in a global table named .BR arg . If these arguments contain spaces or other characters special to the shell, then they should be quoted (but note that the quotes will be removed by the shell). The arguments in .B arg start at 0, which contains the string .RI ' script '. The index of the last argument is stored in .BR arg.n . The arguments given in the command line before .IR script , including the name of the interpreter, are available in negative indices in .BR arg . .LP At the very start, before even handling the command line, .B lua executes the contents of the environment variable .BR LUA_INIT , if it is defined. If the value of .B LUA_INIT is of the form .RI '@ filename ', then .I filename is executed. Otherwise, the string is assumed to be a Lua statement and is executed. .LP Options start with .B '\-' and are described below. You can use .B "'\--'" to signal the end of options. .LP If no arguments are given, then .B "\-v \-i" is assumed when the standard input is a terminal; otherwise, .B "\-" is assumed. .LP In interactive mode, .B lua prompts the user, reads lines from the standard input, and executes them as they are read. If a line does not contain a complete statement, then a secondary prompt is displayed and lines are read until a complete statement is formed or a syntax error is found. So, one way to interrupt the reading of an incomplete statement is to force a syntax error: adding a .B ';' in the middle of a statement is a sure way of forcing a syntax error (except inside multiline strings and comments; these must be closed explicitly). If a line starts with .BR '=' , then .B lua displays the values of all the expressions in the remainder of the line. The expressions must be separated by commas. The primary prompt is the value of the global variable .BR _PROMPT , if this value is a string; otherwise, the default prompt is used. Similarly, the secondary prompt is the value of the global variable .BR _PROMPT2 . So, to change the prompts, set the corresponding variable to a string of your choice. You can do that after calling the interpreter or on the command line (but in this case you have to be careful with quotes if the prompt string contains a space; otherwise you may confuse the shell.) The default prompts are "> " and ">> ". .SH OPTIONS .TP .B \- load and execute the standard input as a file, that is, not interactively, even when the standard input is a terminal. .TP .BI \-e " stat" execute statement .IR stat . You need to quote .I stat if it contains spaces, quotes, or other characters special to the shell. .TP .B \-i enter interactive mode after .I script is executed. .TP .BI \-l " name" call .BI require(' name ') before executing .IR script . Typically used to load libraries. .TP .B \-v show version information. .SH "SEE ALSO" .BR luac (1) .br http://www.lua.org/ .SH DIAGNOSTICS Error messages should be self explanatory. .SH AUTHORS R. Ierusalimschy, L. H. de Figueiredo, and W. Celes .\" EOF redis-2.6.16/deps/lua/doc/lua.css000066400000000000000000000024321220734223100164650ustar00rootroot00000000000000body { color: #000000 ; background-color: #FFFFFF ; font-family: Helvetica, Arial, sans-serif ; text-align: justify ; margin-right: 30px ; margin-left: 30px ; } h1, h2, h3, h4 { font-family: Verdana, Geneva, sans-serif ; font-weight: normal ; font-style: italic ; } h2 { padding-top: 0.4em ; padding-bottom: 0.4em ; padding-left: 30px ; padding-right: 30px ; margin-left: -30px ; background-color: #E0E0FF ; } h3 { padding-left: 0.5em ; border-left: solid #E0E0FF 1em ; } table h3 { padding-left: 0px ; border-left: none ; } a:link { color: #000080 ; background-color: inherit ; text-decoration: none ; } a:visited { background-color: inherit ; text-decoration: none ; } a:link:hover, a:visited:hover { color: #000080 ; background-color: #E0E0FF ; } a:link:active, a:visited:active { color: #FF0000 ; } hr { border: 0 ; height: 1px ; color: #a0a0a0 ; background-color: #a0a0a0 ; } :target { background-color: #F8F8F8 ; padding: 8px ; border: solid #a0a0a0 2px ; } .footer { color: gray ; font-size: small ; } input[type=text] { border: solid #a0a0a0 2px ; border-radius: 2em ; -moz-border-radius: 2em ; background-image: url('images/search.png') ; background-repeat: no-repeat; background-position: 4px center ; padding-left: 20px ; height: 2em ; } redis-2.6.16/deps/lua/doc/lua.html000066400000000000000000000075571220734223100166560ustar00rootroot00000000000000 LUA man page

NAME

lua - Lua interpreter

SYNOPSIS

lua [ options ] [ script [ args ] ]

DESCRIPTION

lua is the stand-alone Lua interpreter. It loads and executes Lua programs, either in textual source form or in precompiled binary form. (Precompiled binaries are output by luac, the Lua compiler.) lua can be used as a batch interpreter and also interactively.

The given options (see below) are executed and then the Lua program in file script is loaded and executed. The given args are available to script as strings in a global table named arg. If these arguments contain spaces or other characters special to the shell, then they should be quoted (but note that the quotes will be removed by the shell). The arguments in arg start at 0, which contains the string 'script'. The index of the last argument is stored in arg.n. The arguments given in the command line before script, including the name of the interpreter, are available in negative indices in arg.

At the very start, before even handling the command line, lua executes the contents of the environment variable LUA_INIT, if it is defined. If the value of LUA_INIT is of the form '@filename', then filename is executed. Otherwise, the string is assumed to be a Lua statement and is executed.

Options start with '-' and are described below. You can use '--' to signal the end of options.

If no arguments are given, then "-v -i" is assumed when the standard input is a terminal; otherwise, "-" is assumed.

In interactive mode, lua prompts the user, reads lines from the standard input, and executes them as they are read. If a line does not contain a complete statement, then a secondary prompt is displayed and lines are read until a complete statement is formed or a syntax error is found. So, one way to interrupt the reading of an incomplete statement is to force a syntax error: adding a ';' in the middle of a statement is a sure way of forcing a syntax error (except inside multiline strings and comments; these must be closed explicitly). If a line starts with '=', then lua displays the values of all the expressions in the remainder of the line. The expressions must be separated by commas. The primary prompt is the value of the global variable _PROMPT, if this value is a string; otherwise, the default prompt is used. Similarly, the secondary prompt is the value of the global variable _PROMPT2. So, to change the prompts, set the corresponding variable to a string of your choice. You can do that after calling the interpreter or on the command line (but in this case you have to be careful with quotes if the prompt string contains a space; otherwise you may confuse the shell.) The default prompts are "> " and ">> ".

OPTIONS

- load and execute the standard input as a file, that is, not interactively, even when the standard input is a terminal.

-e stat execute statement stat. You need to quote stat if it contains spaces, quotes, or other characters special to the shell.

-i enter interactive mode after script is executed.

-l name call require('name') before executing script. Typically used to load libraries.

-v show version information.

SEE ALSO

luac(1)
http://www.lua.org/

DIAGNOSTICS

Error messages should be self explanatory.

AUTHORS

R. Ierusalimschy, L. H. de Figueiredo, and W. Celes redis-2.6.16/deps/lua/doc/luac.1000066400000000000000000000070411220734223100162010ustar00rootroot00000000000000.\" $Id: luac.man,v 1.28 2006/01/06 16:03:34 lhf Exp $ .TH LUAC 1 "$Date: 2006/01/06 16:03:34 $" .SH NAME luac \- Lua compiler .SH SYNOPSIS .B luac [ .I options ] [ .I filenames ] .SH DESCRIPTION .B luac is the Lua compiler. It translates programs written in the Lua programming language into binary files that can be later loaded and executed. .LP The main advantages of precompiling chunks are: faster loading, protecting source code from accidental user changes, and off-line syntax checking. .LP Pre-compiling does not imply faster execution because in Lua chunks are always compiled into bytecodes before being executed. .B luac simply allows those bytecodes to be saved in a file for later execution. .LP Pre-compiled chunks are not necessarily smaller than the corresponding source. The main goal in pre-compiling is faster loading. .LP The binary files created by .B luac are portable only among architectures with the same word size and byte order. .LP .B luac produces a single output file containing the bytecodes for all source files given. By default, the output file is named .BR luac.out , but you can change this with the .B \-o option. .LP In the command line, you can mix text files containing Lua source and binary files containing precompiled chunks. This is useful to combine several precompiled chunks, even from different (but compatible) platforms, into a single precompiled chunk. .LP You can use .B "'\-'" to indicate the standard input as a source file and .B "'\--'" to signal the end of options (that is, all remaining arguments will be treated as files even if they start with .BR "'\-'" ). .LP The internal format of the binary files produced by .B luac is likely to change when a new version of Lua is released. So, save the source files of all Lua programs that you precompile. .LP .SH OPTIONS Options must be separate. .TP .B \-l produce a listing of the compiled bytecode for Lua's virtual machine. Listing bytecodes is useful to learn about Lua's virtual machine. If no files are given, then .B luac loads .B luac.out and lists its contents. .TP .BI \-o " file" output to .IR file , instead of the default .BR luac.out . (You can use .B "'\-'" for standard output, but not on platforms that open standard output in text mode.) The output file may be a source file because all files are loaded before the output file is written. Be careful not to overwrite precious files. .TP .B \-p load files but do not generate any output file. Used mainly for syntax checking and for testing precompiled chunks: corrupted files will probably generate errors when loaded. Lua always performs a thorough integrity test on precompiled chunks. Bytecode that passes this test is completely safe, in the sense that it will not break the interpreter. However, there is no guarantee that such code does anything sensible. (None can be given, because the halting problem is unsolvable.) If no files are given, then .B luac loads .B luac.out and tests its contents. No messages are displayed if the file passes the integrity test. .TP .B \-s strip debug information before writing the output file. This saves some space in very large chunks, but if errors occur when running a stripped chunk, then the error messages may not contain the full information they usually do. For instance, line numbers and names of local variables are lost. .TP .B \-v show version information. .SH FILES .TP 15 .B luac.out default output file .SH "SEE ALSO" .BR lua (1) .br http://www.lua.org/ .SH DIAGNOSTICS Error messages should be self explanatory. .SH AUTHORS L. H. de Figueiredo, R. Ierusalimschy and W. Celes .\" EOF redis-2.6.16/deps/lua/doc/luac.html000066400000000000000000000074701220734223100170130ustar00rootroot00000000000000 LUAC man page

NAME

luac - Lua compiler

SYNOPSIS

luac [ options ] [ filenames ]

DESCRIPTION

luac is the Lua compiler. It translates programs written in the Lua programming language into binary files that can be later loaded and executed.

The main advantages of precompiling chunks are: faster loading, protecting source code from accidental user changes, and off-line syntax checking.

Precompiling does not imply faster execution because in Lua chunks are always compiled into bytecodes before being executed. luac simply allows those bytecodes to be saved in a file for later execution.

Precompiled chunks are not necessarily smaller than the corresponding source. The main goal in precompiling is faster loading.

The binary files created by luac are portable only among architectures with the same word size and byte order.

luac produces a single output file containing the bytecodes for all source files given. By default, the output file is named luac.out, but you can change this with the -o option.

In the command line, you can mix text files containing Lua source and binary files containing precompiled chunks. This is useful because several precompiled chunks, even from different (but compatible) platforms, can be combined into a single precompiled chunk.

You can use '-' to indicate the standard input as a source file and '--' to signal the end of options (that is, all remaining arguments will be treated as files even if they start with '-').

The internal format of the binary files produced by luac is likely to change when a new version of Lua is released. So, save the source files of all Lua programs that you precompile.

OPTIONS

Options must be separate.

-l produce a listing of the compiled bytecode for Lua's virtual machine. Listing bytecodes is useful to learn about Lua's virtual machine. If no files are given, then luac loads luac.out and lists its contents.

-o file output to file, instead of the default luac.out. (You can use '-' for standard output, but not on platforms that open standard output in text mode.) The output file may be a source file because all files are loaded before the output file is written. Be careful not to overwrite precious files.

-p load files but do not generate any output file. Used mainly for syntax checking and for testing precompiled chunks: corrupted files will probably generate errors when loaded. Lua always performs a thorough integrity test on precompiled chunks. Bytecode that passes this test is completely safe, in the sense that it will not break the interpreter. However, there is no guarantee that such code does anything sensible. (None can be given, because the halting problem is unsolvable.) If no files are given, then luac loads luac.out and tests its contents. No messages are displayed if the file passes the integrity test.

-s strip debug information before writing the output file. This saves some space in very large chunks, but if errors occur when running a stripped chunk, then the error messages may not contain the full information they usually do. For instance, line numbers and names of local variables are lost.

-v show version information.

FILES

luac.out default output file

SEE ALSO

lua(1)
http://www.lua.org/

DIAGNOSTICS

Error messages should be self explanatory.

AUTHORS

L. H. de Figueiredo, R. Ierusalimschy and W. Celes redis-2.6.16/deps/lua/doc/manual.css000066400000000000000000000005251220734223100171620ustar00rootroot00000000000000h3 code { font-family: inherit ; font-size: inherit ; } pre, code { font-size: 12pt ; } span.apii { float: right ; font-family: inherit ; font-style: normal ; font-size: small ; color: gray ; } p+h1, ul+h1 { padding-top: 0.4em ; padding-bottom: 0.4em ; padding-left: 30px ; margin-left: -30px ; background-color: #E0E0FF ; } redis-2.6.16/deps/lua/doc/manual.html000066400000000000000000007614311220734223100173500ustar00rootroot00000000000000 Lua 5.1 Reference Manual

Lua 5.1 Reference Manual

by Roberto Ierusalimschy, Luiz Henrique de Figueiredo, Waldemar Celes

Copyright © 2006–2012 Lua.org, PUC-Rio. Freely available under the terms of the Lua license.

contents · index · other versions

1 - Introduction

Lua is an extension programming language designed to support general procedural programming with data description facilities. It also offers good support for object-oriented programming, functional programming, and data-driven programming. Lua is intended to be used as a powerful, light-weight scripting language for any program that needs one. Lua is implemented as a library, written in clean C (that is, in the common subset of ANSI C and C++).

Being an extension language, Lua has no notion of a "main" program: it only works embedded in a host client, called the embedding program or simply the host. This host program can invoke functions to execute a piece of Lua code, can write and read Lua variables, and can register C functions to be called by Lua code. Through the use of C functions, Lua can be augmented to cope with a wide range of different domains, thus creating customized programming languages sharing a syntactical framework. The Lua distribution includes a sample host program called lua, which uses the Lua library to offer a complete, stand-alone Lua interpreter.

Lua is free software, and is provided as usual with no guarantees, as stated in its license. The implementation described in this manual is available at Lua's official web site, www.lua.org.

Like any other reference manual, this document is dry in places. For a discussion of the decisions behind the design of Lua, see the technical papers available at Lua's web site. For a detailed introduction to programming in Lua, see Roberto's book, Programming in Lua (Second Edition).

2 - The Language

This section describes the lexis, the syntax, and the semantics of Lua. In other words, this section describes which tokens are valid, how they can be combined, and what their combinations mean.

The language constructs will be explained using the usual extended BNF notation, in which {a} means 0 or more a's, and [a] means an optional a. Non-terminals are shown like non-terminal, keywords are shown like kword, and other terminal symbols are shown like `=´. The complete syntax of Lua can be found in §8 at the end of this manual.

2.1 - Lexical Conventions

Names (also called identifiers) in Lua can be any string of letters, digits, and underscores, not beginning with a digit. This coincides with the definition of names in most languages. (The definition of letter depends on the current locale: any character considered alphabetic by the current locale can be used in an identifier.) Identifiers are used to name variables and table fields.

The following keywords are reserved and cannot be used as names: 

     and       break     do        else      elseif
     end       false     for       function  if
     in        local     nil       not       or
     repeat    return    then      true      until     while

Lua is a case-sensitive language: and is a reserved word, but And and AND are two different, valid names. As a convention, names starting with an underscore followed by uppercase letters (such as _VERSION) are reserved for internal global variables used by Lua.

The following strings denote other tokens: 

     +     -     *     /     %     ^     #
     ==    ~=    <=    >=    <     >     =
     (     )     {     }     [     ]
     ;     :     ,     .     ..    ...

Literal strings can be delimited by matching single or double quotes, and can contain the following C-like escape sequences: '\a' (bell), '\b' (backspace), '\f' (form feed), '\n' (newline), '\r' (carriage return), '\t' (horizontal tab), '\v' (vertical tab), '\\' (backslash), '\"' (quotation mark [double quote]), and '\'' (apostrophe [single quote]). Moreover, a backslash followed by a real newline results in a newline in the string. A character in a string can also be specified by its numerical value using the escape sequence \ddd, where ddd is a sequence of up to three decimal digits. (Note that if a numerical escape is to be followed by a digit, it must be expressed using exactly three digits.) Strings in Lua can contain any 8-bit value, including embedded zeros, which can be specified as '\0'.

Literal strings can also be defined using a long format enclosed by long brackets. We define an opening long bracket of level n as an opening square bracket followed by n equal signs followed by another opening square bracket. So, an opening long bracket of level 0 is written as [[, an opening long bracket of level 1 is written as [=[, and so on. A closing long bracket is defined similarly; for instance, a closing long bracket of level 4 is written as ]====]. A long string starts with an opening long bracket of any level and ends at the first closing long bracket of the same level. Literals in this bracketed form can run for several lines, do not interpret any escape sequences, and ignore long brackets of any other level. They can contain anything except a closing bracket of the proper level.

For convenience, when the opening long bracket is immediately followed by a newline, the newline is not included in the string. As an example, in a system using ASCII (in which 'a' is coded as 97, newline is coded as 10, and '1' is coded as 49), the five literal strings below denote the same string: 

     a = 'alo\n123"'
     a = "alo\n123\""
     a = '\97lo\10\04923"'
     a = [[alo
     123"]]
     a = [==[
     alo
     123"]==]

A numerical constant can be written with an optional decimal part and an optional decimal exponent. Lua also accepts integer hexadecimal constants, by prefixing them with 0x. Examples of valid numerical constants are 

     3   3.0   3.1416   314.16e-2   0.31416E1   0xff   0x56

A comment starts with a double hyphen (--) anywhere outside a string. If the text immediately after -- is not an opening long bracket, the comment is a short comment, which runs until the end of the line. Otherwise, it is a long comment, which runs until the corresponding closing long bracket. Long comments are frequently used to disable code temporarily.

2.2 - Values and Types

Lua is a dynamically typed language. This means that variables do not have types; only values do. There are no type definitions in the language. All values carry their own type.

All values in Lua are first-class values. This means that all values can be stored in variables, passed as arguments to other functions, and returned as results.

There are eight basic types in Lua: nil, boolean, number, string, function, userdata, thread, and table. Nil is the type of the value nil, whose main property is to be different from any other value; it usually represents the absence of a useful value. Boolean is the type of the values false and true. Both nil and false make a condition false; any other value makes it true. Number represents real (double-precision floating-point) numbers. (It is easy to build Lua interpreters that use other internal representations for numbers, such as single-precision float or long integers; see file luaconf.h.) String represents arrays of characters. Lua is 8-bit clean: strings can contain any 8-bit character, including embedded zeros ('\0') (see §2.1).

Lua can call (and manipulate) functions written in Lua and functions written in C (see §2.5.8).

The type userdata is provided to allow arbitrary C data to be stored in Lua variables. This type corresponds to a block of raw memory and has no pre-defined operations in Lua, except assignment and identity test. However, by using metatables, the programmer can define operations for userdata values (see §2.8). Userdata values cannot be created or modified in Lua, only through the C API. This guarantees the integrity of data owned by the host program.

The type thread represents independent threads of execution and it is used to implement coroutines (see §2.11). Do not confuse Lua threads with operating-system threads. Lua supports coroutines on all systems, even those that do not support threads.

The type table implements associative arrays, that is, arrays that can be indexed not only with numbers, but with any value (except nil). Tables can be heterogeneous; that is, they can contain values of all types (except nil). Tables are the sole data structuring mechanism in Lua; they can be used to represent ordinary arrays, symbol tables, sets, records, graphs, trees, etc. To represent records, Lua uses the field name as an index. The language supports this representation by providing a.name as syntactic sugar for a["name"]. There are several convenient ways to create tables in Lua (see §2.5.7).

Like indices, the value of a table field can be of any type (except nil). In particular, because functions are first-class values, table fields can contain functions. Thus tables can also carry methods (see §2.5.9).

Tables, functions, threads, and (full) userdata values are objects: variables do not actually contain these values, only references to them. Assignment, parameter passing, and function returns always manipulate references to such values; these operations do not imply any kind of copy.

The library function type returns a string describing the type of a given value.

2.2.1 - Coercion

Lua provides automatic conversion between string and number values at run time. Any arithmetic operation applied to a string tries to convert this string to a number, following the usual conversion rules. Conversely, whenever a number is used where a string is expected, the number is converted to a string, in a reasonable format. For complete control over how numbers are converted to strings, use the format function from the string library (see string.format).

2.3 - Variables

Variables are places that store values. There are three kinds of variables in Lua: global variables, local variables, and table fields.

A single name can denote a global variable or a local variable (or a function's formal parameter, which is a particular kind of local variable): 

	var ::= Name

Name denotes identifiers, as defined in §2.1.

Any variable is assumed to be global unless explicitly declared as a local (see §2.4.7). Local variables are lexically scoped: local variables can be freely accessed by functions defined inside their scope (see §2.6).

Before the first assignment to a variable, its value is nil.

Square brackets are used to index a table: 

	var ::= prefixexp `[´ exp `]´

The meaning of accesses to global variables and table fields can be changed via metatables. An access to an indexed variable t[i] is equivalent to a call gettable_event(t,i). (See §2.8 for a complete description of the gettable_event function. This function is not defined or callable in Lua. We use it here only for explanatory purposes.)

The syntax var.Name is just syntactic sugar for var["Name"]: 

	var ::= prefixexp `.´ Name

All global variables live as fields in ordinary Lua tables, called environment tables or simply environments (see §2.9). Each function has its own reference to an environment, so that all global variables in this function will refer to this environment table. When a function is created, it inherits the environment from the function that created it. To get the environment table of a Lua function, you call getfenv. To replace it, you call setfenv. (You can only manipulate the environment of C functions through the debug library; (see §5.9).)

An access to a global variable x is equivalent to _env.x, which in turn is equivalent to 

     gettable_event(_env, "x")

where _env is the environment of the running function. (See §2.8 for a complete description of the gettable_event function. This function is not defined or callable in Lua. Similarly, the _env variable is not defined in Lua. We use them here only for explanatory purposes.)

2.4 - Statements

Lua supports an almost conventional set of statements, similar to those in Pascal or C. This set includes assignments, control structures, function calls, and variable declarations.

2.4.1 - Chunks

The unit of execution of Lua is called a chunk. A chunk is simply a sequence of statements, which are executed sequentially. Each statement can be optionally followed by a semicolon: 

	chunk ::= {stat [`;´]}

There are no empty statements and thus ';;' is not legal.

Lua handles a chunk as the body of an anonymous function with a variable number of arguments (see §2.5.9). As such, chunks can define local variables, receive arguments, and return values.

A chunk can be stored in a file or in a string inside the host program. To execute a chunk, Lua first pre-compiles the chunk into instructions for a virtual machine, and then it executes the compiled code with an interpreter for the virtual machine.

Chunks can also be pre-compiled into binary form; see program luac for details. Programs in source and compiled forms are interchangeable; Lua automatically detects the file type and acts accordingly.

2.4.2 - Blocks

A block is a list of statements; syntactically, a block is the same as a chunk: 

	block ::= chunk

A block can be explicitly delimited to produce a single statement: 

	stat ::= do block end

Explicit blocks are useful to control the scope of variable declarations. Explicit blocks are also sometimes used to add a return or break statement in the middle of another block (see §2.4.4).

2.4.3 - Assignment

Lua allows multiple assignments. Therefore, the syntax for assignment defines a list of variables on the left side and a list of expressions on the right side. The elements in both lists are separated by commas: 

	stat ::= varlist `=´ explist
	varlist ::= var {`,´ var}
	explist ::= exp {`,´ exp}

Expressions are discussed in §2.5.

Before the assignment, the list of values is adjusted to the length of the list of variables. If there are more values than needed, the excess values are thrown away. If there are fewer values than needed, the list is extended with as many nil's as needed. If the list of expressions ends with a function call, then all values returned by that call enter the list of values, before the adjustment (except when the call is enclosed in parentheses; see §2.5).

The assignment statement first evaluates all its expressions and only then are the assignments performed. Thus the code 

     i = 3
     i, a[i] = i+1, 20

sets a[3] to 20, without affecting a[4] because the i in a[i] is evaluated (to 3) before it is assigned 4. Similarly, the line 

     x, y = y, x

exchanges the values of x and y, and 

     x, y, z = y, z, x

cyclically permutes the values of x, y, and z.

The meaning of assignments to global variables and table fields can be changed via metatables. An assignment to an indexed variable t[i] = val is equivalent to settable_event(t,i,val). (See §2.8 for a complete description of the settable_event function. This function is not defined or callable in Lua. We use it here only for explanatory purposes.)

An assignment to a global variable x = val is equivalent to the assignment _env.x = val, which in turn is equivalent to 

     settable_event(_env, "x", val)

where _env is the environment of the running function. (The _env variable is not defined in Lua. We use it here only for explanatory purposes.)

2.4.4 - Control Structures

The control structures if, while, and repeat have the usual meaning and familiar syntax: 

	stat ::= while exp do block end
	stat ::= repeat block until exp
	stat ::= if exp then block {elseif exp then block} [else block] end

Lua also has a for statement, in two flavors (see §2.4.5).

The condition expression of a control structure can return any value. Both false and nil are considered false. All values different from nil and false are considered true (in particular, the number 0 and the empty string are also true).

In the repeat–until loop, the inner block does not end at the until keyword, but only after the condition. So, the condition can refer to local variables declared inside the loop block.

The return statement is used to return values from a function or a chunk (which is just a function). Functions and chunks can return more than one value, and so the syntax for the return statement is 

	stat ::= return [explist]

The break statement is used to terminate the execution of a while, repeat, or for loop, skipping to the next statement after the loop: 

	stat ::= break

A break ends the innermost enclosing loop.

The return and break statements can only be written as the last statement of a block. If it is really necessary to return or break in the middle of a block, then an explicit inner block can be used, as in the idioms do return end and do break end, because now return and break are the last statements in their (inner) blocks.

2.4.5 - For Statement

The for statement has two forms: one numeric and one generic.

The numeric for loop repeats a block of code while a control variable runs through an arithmetic progression. It has the following syntax: 

	stat ::= for Name `=´ exp `,´ exp [`,´ exp] do block end

The block is repeated for name starting at the value of the first exp, until it passes the second exp by steps of the third exp. More precisely, a for statement like 

     for v = e1, e2, e3 do block end

is equivalent to the code: 

     do
       local var, limit, step = tonumber(e1), tonumber(e2), tonumber(e3)
       if not (var and limit and step) then error() end
       while (step > 0 and var <= limit) or (step <= 0 and var >= limit) do
         local v = var
         block
         var = var + step
       end
     end

Note the following:

  • All three control expressions are evaluated only once, before the loop starts. They must all result in numbers.
  • var, limit, and step are invisible variables. The names shown here are for explanatory purposes only.
  • If the third expression (the step) is absent, then a step of 1 is used.
  • You can use break to exit a for loop.
  • The loop variable v is local to the loop; you cannot use its value after the for ends or is broken. If you need this value, assign it to another variable before breaking or exiting the loop.

The generic for statement works over functions, called iterators. On each iteration, the iterator function is called to produce a new value, stopping when this new value is nil. The generic for loop has the following syntax: 

	stat ::= for namelist in explist do block end
	namelist ::= Name {`,´ Name}

A for statement like 

     for var_1, ···, var_n in explist do block end

is equivalent to the code: 

     do
       local f, s, var = explist
       while true do
         local var_1, ···, var_n = f(s, var)
         var = var_1
         if var == nil then break end
         block
       end
     end

Note the following:

  • explist is evaluated only once. Its results are an iterator function, a state, and an initial value for the first iterator variable.
  • f, s, and var are invisible variables. The names are here for explanatory purposes only.
  • You can use break to exit a for loop.
  • The loop variables var_i are local to the loop; you cannot use their values after the for ends. If you need these values, then assign them to other variables before breaking or exiting the loop.

2.4.6 - Function Calls as Statements

To allow possible side-effects, function calls can be executed as statements: 

	stat ::= functioncall

In this case, all returned values are thrown away. Function calls are explained in §2.5.8.

2.4.7 - Local Declarations

Local variables can be declared anywhere inside a block. The declaration can include an initial assignment: 

	stat ::= local namelist [`=´ explist]

If present, an initial assignment has the same semantics of a multiple assignment (see §2.4.3). Otherwise, all variables are initialized with nil.

A chunk is also a block (see §2.4.1), and so local variables can be declared in a chunk outside any explicit block. The scope of such local variables extends until the end of the chunk.

The visibility rules for local variables are explained in §2.6.

2.5 - Expressions

The basic expressions in Lua are the following: 

	exp ::= prefixexp
	exp ::= nil | false | true
	exp ::= Number
	exp ::= String
	exp ::= function
	exp ::= tableconstructor
	exp ::= `...´
	exp ::= exp binop exp
	exp ::= unop exp
	prefixexp ::= var | functioncall | `(´ exp `)´

Numbers and literal strings are explained in §2.1; variables are explained in §2.3; function definitions are explained in §2.5.9; function calls are explained in §2.5.8; table constructors are explained in §2.5.7. Vararg expressions, denoted by three dots ('...'), can only be used when directly inside a vararg function; they are explained in §2.5.9.

Binary operators comprise arithmetic operators (see §2.5.1), relational operators (see §2.5.2), logical operators (see §2.5.3), and the concatenation operator (see §2.5.4). Unary operators comprise the unary minus (see §2.5.1), the unary not (see §2.5.3), and the unary length operator (see §2.5.5).

Both function calls and vararg expressions can result in multiple values. If an expression is used as a statement (only possible for function calls (see §2.4.6)), then its return list is adjusted to zero elements, thus discarding all returned values. If an expression is used as the last (or the only) element of a list of expressions, then no adjustment is made (unless the call is enclosed in parentheses). In all other contexts, Lua adjusts the result list to one element, discarding all values except the first one.

Here are some examples: 

     f()                -- adjusted to 0 results
     g(f(), x)          -- f() is adjusted to 1 result
     g(x, f())          -- g gets x plus all results from f()
     a,b,c = f(), x     -- f() is adjusted to 1 result (c gets nil)
     a,b = ...          -- a gets the first vararg parameter, b gets
                        -- the second (both a and b can get nil if there
                        -- is no corresponding vararg parameter)
     
     a,b,c = x, f()     -- f() is adjusted to 2 results
     a,b,c = f()        -- f() is adjusted to 3 results
     return f()         -- returns all results from f()
     return ...         -- returns all received vararg parameters
     return x,y,f()     -- returns x, y, and all results from f()
     {f()}              -- creates a list with all results from f()
     {...}              -- creates a list with all vararg parameters
     {f(), nil}         -- f() is adjusted to 1 result

Any expression enclosed in parentheses always results in only one value. Thus, (f(x,y,z)) is always a single value, even if f returns several values. (The value of (f(x,y,z)) is the first value returned by f or nil if f does not return any values.)

2.5.1 - Arithmetic Operators

Lua supports the usual arithmetic operators: the binary + (addition), - (subtraction), * (multiplication), / (division), % (modulo), and ^ (exponentiation); and unary - (negation). If the operands are numbers, or strings that can be converted to numbers (see §2.2.1), then all operations have the usual meaning. Exponentiation works for any exponent. For instance, x^(-0.5) computes the inverse of the square root of x. Modulo is defined as 

     a % b == a - math.floor(a/b)*b

That is, it is the remainder of a division that rounds the quotient towards minus infinity.

2.5.2 - Relational Operators

The relational operators in Lua are 

     ==    ~=    <     >     <=    >=

These operators always result in false or true.

Equality (==) first compares the type of its operands. If the types are different, then the result is false. Otherwise, the values of the operands are compared. Numbers and strings are compared in the usual way. Objects (tables, userdata, threads, and functions) are compared by reference: two objects are considered equal only if they are the same object. Every time you create a new object (a table, userdata, thread, or function), this new object is different from any previously existing object.

You can change the way that Lua compares tables and userdata by using the "eq" metamethod (see §2.8).

The conversion rules of §2.2.1 do not apply to equality comparisons. Thus, "0"==0 evaluates to false, and t[0] and t["0"] denote different entries in a table.

The operator ~= is exactly the negation of equality (==).

The order operators work as follows. If both arguments are numbers, then they are compared as such. Otherwise, if both arguments are strings, then their values are compared according to the current locale. Otherwise, Lua tries to call the "lt" or the "le" metamethod (see §2.8). A comparison a > b is translated to b < a and a >= b is translated to b <= a.

2.5.3 - Logical Operators

The logical operators in Lua are and, or, and not. Like the control structures (see §2.4.4), all logical operators consider both false and nil as false and anything else as true.

The negation operator not always returns false or true. The conjunction operator and returns its first argument if this value is false or nil; otherwise, and returns its second argument. The disjunction operator or returns its first argument if this value is different from nil and false; otherwise, or returns its second argument. Both and and or use short-cut evaluation; that is, the second operand is evaluated only if necessary. Here are some examples: 

     10 or 20            --> 10
     10 or error()       --> 10
     nil or "a"          --> "a"
     nil and 10          --> nil
     false and error()   --> false
     false and nil       --> false
     false or nil        --> nil
     10 and 20           --> 20

(In this manual, --> indicates the result of the preceding expression.)

2.5.4 - Concatenation

The string concatenation operator in Lua is denoted by two dots ('..'). If both operands are strings or numbers, then they are converted to strings according to the rules mentioned in §2.2.1. Otherwise, the "concat" metamethod is called (see §2.8).

2.5.5 - The Length Operator

The length operator is denoted by the unary operator #. The length of a string is its number of bytes (that is, the usual meaning of string length when each character is one byte).

The length of a table t is defined to be any integer index n such that t[n] is not nil and t[n+1] is nil; moreover, if t[1] is nil, n can be zero. For a regular array, with non-nil values from 1 to a given n, its length is exactly that n, the index of its last value. If the array has "holes" (that is, nil values between other non-nil values), then #t can be any of the indices that directly precedes a nil value (that is, it may consider any such nil value as the end of the array).

2.5.6 - Precedence

Operator precedence in Lua follows the table below, from lower to higher priority: 

     or
     and
     <     >     <=    >=    ~=    ==
     ..
     +     -
     *     /     %
     not   #     - (unary)
     ^

As usual, you can use parentheses to change the precedences of an expression. The concatenation ('..') and exponentiation ('^') operators are right associative. All other binary operators are left associative.

2.5.7 - Table Constructors

Table constructors are expressions that create tables. Every time a constructor is evaluated, a new table is created. A constructor can be used to create an empty table or to create a table and initialize some of its fields. The general syntax for constructors is 

	tableconstructor ::= `{´ [fieldlist] `}´
	fieldlist ::= field {fieldsep field} [fieldsep]
	field ::= `[´ exp `]´ `=´ exp | Name `=´ exp | exp
	fieldsep ::= `,´ | `;´

Each field of the form [exp1] = exp2 adds to the new table an entry with key exp1 and value exp2. A field of the form name = exp is equivalent to ["name"] = exp. Finally, fields of the form exp are equivalent to [i] = exp, where i are consecutive numerical integers, starting with 1. Fields in the other formats do not affect this counting. For example, 

     a = { [f(1)] = g; "x", "y"; x = 1, f(x), [30] = 23; 45 }

is equivalent to 

     do
       local t = {}
       t[f(1)] = g
       t[1] = "x"         -- 1st exp
       t[2] = "y"         -- 2nd exp
       t.x = 1            -- t["x"] = 1
       t[3] = f(x)        -- 3rd exp
       t[30] = 23
       t[4] = 45          -- 4th exp
       a = t
     end

If the last field in the list has the form exp and the expression is a function call or a vararg expression, then all values returned by this expression enter the list consecutively (see §2.5.8). To avoid this, enclose the function call or the vararg expression in parentheses (see §2.5).

The field list can have an optional trailing separator, as a convenience for machine-generated code.

2.5.8 - Function Calls

A function call in Lua has the following syntax: 

	functioncall ::= prefixexp args

In a function call, first prefixexp and args are evaluated. If the value of prefixexp has type function, then this function is called with the given arguments. Otherwise, the prefixexp "call" metamethod is called, having as first parameter the value of prefixexp, followed by the original call arguments (see §2.8).

The form 

	functioncall ::= prefixexp `:´ Name args

can be used to call "methods". A call v:name(args) is syntactic sugar for v.name(v,args), except that v is evaluated only once.

Arguments have the following syntax: 

	args ::= `(´ [explist] `)´
	args ::= tableconstructor
	args ::= String

All argument expressions are evaluated before the call. A call of the form f{fields} is syntactic sugar for f({fields}); that is, the argument list is a single new table. A call of the form f'string' (or f"string" or f[[string]]) is syntactic sugar for f('string'); that is, the argument list is a single literal string.

As an exception to the free-format syntax of Lua, you cannot put a line break before the '(' in a function call. This restriction avoids some ambiguities in the language. If you write 

     a = f
     (g).x(a)

Lua would see that as a single statement, a = f(g).x(a). So, if you want two statements, you must add a semi-colon between them. If you actually want to call f, you must remove the line break before (g).

A call of the form return functioncall is called a tail call. Lua implements proper tail calls (or proper tail recursion): in a tail call, the called function reuses the stack entry of the calling function. Therefore, there is no limit on the number of nested tail calls that a program can execute. However, a tail call erases any debug information about the calling function. Note that a tail call only happens with a particular syntax, where the return has one single function call as argument; this syntax makes the calling function return exactly the returns of the called function. So, none of the following examples are tail calls: 

     return (f(x))        -- results adjusted to 1
     return 2 * f(x)
     return x, f(x)       -- additional results
     f(x); return         -- results discarded
     return x or f(x)     -- results adjusted to 1

2.5.9 - Function Definitions

The syntax for function definition is 

	function ::= function funcbody
	funcbody ::= `(´ [parlist] `)´ block end

The following syntactic sugar simplifies function definitions: 

	stat ::= function funcname funcbody
	stat ::= local function Name funcbody
	funcname ::= Name {`.´ Name} [`:´ Name]

The statement 

     function f () body end

translates to 

     f = function () body end

The statement 

     function t.a.b.c.f () body end

translates to 

     t.a.b.c.f = function () body end

The statement 

     local function f () body end

translates to 

     local f; f = function () body end

not to 

     local f = function () body end

(This only makes a difference when the body of the function contains references to f.)

A function definition is an executable expression, whose value has type function. When Lua pre-compiles a chunk, all its function bodies are pre-compiled too. Then, whenever Lua executes the function definition, the function is instantiated (or closed). This function instance (or closure) is the final value of the expression. Different instances of the same function can refer to different external local variables and can have different environment tables.

Parameters act as local variables that are initialized with the argument values: 

	parlist ::= namelist [`,´ `...´] | `...´

When a function is called, the list of arguments is adjusted to the length of the list of parameters, unless the function is a variadic or vararg function, which is indicated by three dots ('...') at the end of its parameter list. A vararg function does not adjust its argument list; instead, it collects all extra arguments and supplies them to the function through a vararg expression, which is also written as three dots. The value of this expression is a list of all actual extra arguments, similar to a function with multiple results. If a vararg expression is used inside another expression or in the middle of a list of expressions, then its return list is adjusted to one element. If the expression is used as the last element of a list of expressions, then no adjustment is made (unless that last expression is enclosed in parentheses).

As an example, consider the following definitions: 

     function f(a, b) end
     function g(a, b, ...) end
     function r() return 1,2,3 end

Then, we have the following mapping from arguments to parameters and to the vararg expression: 

     CALL            PARAMETERS
     
     f(3)             a=3, b=nil
     f(3, 4)          a=3, b=4
     f(3, 4, 5)       a=3, b=4
     f(r(), 10)       a=1, b=10
     f(r())           a=1, b=2
     
     g(3)             a=3, b=nil, ... -->  (nothing)
     g(3, 4)          a=3, b=4,   ... -->  (nothing)
     g(3, 4, 5, 8)    a=3, b=4,   ... -->  5  8
     g(5, r())        a=5, b=1,   ... -->  2  3

Results are returned using the return statement (see §2.4.4). If control reaches the end of a function without encountering a return statement, then the function returns with no results.

The colon syntax is used for defining methods, that is, functions that have an implicit extra parameter self. Thus, the statement 

     function t.a.b.c:f (params) body end

is syntactic sugar for 

     t.a.b.c.f = function (self, params) body end

2.6 - Visibility Rules

Lua is a lexically scoped language. The scope of variables begins at the first statement after their declaration and lasts until the end of the innermost block that includes the declaration. Consider the following example: 

     x = 10                -- global variable
     do                    -- new block
       local x = x         -- new 'x', with value 10
       print(x)            --> 10
       x = x+1
       do                  -- another block
         local x = x+1     -- another 'x'
         print(x)          --> 12
       end
       print(x)            --> 11
     end
     print(x)              --> 10  (the global one)

Notice that, in a declaration like local x = x, the new x being declared is not in scope yet, and so the second x refers to the outside variable.

Because of the lexical scoping rules, local variables can be freely accessed by functions defined inside their scope. A local variable used by an inner function is called an upvalue, or external local variable, inside the inner function.

Notice that each execution of a local statement defines new local variables. Consider the following example: 

     a = {}
     local x = 20
     for i=1,10 do
       local y = 0
       a[i] = function () y=y+1; return x+y end
     end

The loop creates ten closures (that is, ten instances of the anonymous function). Each of these closures uses a different y variable, while all of them share the same x.

2.7 - Error Handling

Because Lua is an embedded extension language, all Lua actions start from C code in the host program calling a function from the Lua library (see lua_pcall). Whenever an error occurs during Lua compilation or execution, control returns to C, which can take appropriate measures (such as printing an error message).

Lua code can explicitly generate an error by calling the error function. If you need to catch errors in Lua, you can use the pcall function.

2.8 - Metatables

Every value in Lua can have a metatable. This metatable is an ordinary Lua table that defines the behavior of the original value under certain special operations. You can change several aspects of the behavior of operations over a value by setting specific fields in its metatable. For instance, when a non-numeric value is the operand of an addition, Lua checks for a function in the field "__add" in its metatable. If it finds one, Lua calls this function to perform the addition.

We call the keys in a metatable events and the values metamethods. In the previous example, the event is "add" and the metamethod is the function that performs the addition.

You can query the metatable of any value through the getmetatable function.

You can replace the metatable of tables through the setmetatable function. You cannot change the metatable of other types from Lua (except by using the debug library); you must use the C API for that.

Tables and full userdata have individual metatables (although multiple tables and userdata can share their metatables). Values of all other types share one single metatable per type; that is, there is one single metatable for all numbers, one for all strings, etc.

A metatable controls how an object behaves in arithmetic operations, order comparisons, concatenation, length operation, and indexing. A metatable also can define a function to be called when a userdata is garbage collected. For each of these operations Lua associates a specific key called an event. When Lua performs one of these operations over a value, it checks whether this value has a metatable with the corresponding event. If so, the value associated with that key (the metamethod) controls how Lua will perform the operation.

Metatables control the operations listed next. Each operation is identified by its corresponding name. The key for each operation is a string with its name prefixed by two underscores, '__'; for instance, the key for operation "add" is the string "__add". The semantics of these operations is better explained by a Lua function describing how the interpreter executes the operation.

The code shown here in Lua is only illustrative; the real behavior is hard coded in the interpreter and it is much more efficient than this simulation. All functions used in these descriptions (rawget, tonumber, etc.) are described in §5.1. In particular, to retrieve the metamethod of a given object, we use the expression 

     metatable(obj)[event]

This should be read as 

     rawget(getmetatable(obj) or {}, event)

That is, the access to a metamethod does not invoke other metamethods, and the access to objects with no metatables does not fail (it simply results in nil).

  • "add": the + operation.

    The function getbinhandler below defines how Lua chooses a handler for a binary operation. First, Lua tries the first operand. If its type does not define a handler for the operation, then Lua tries the second operand. 

         function getbinhandler (op1, op2, event)
       return metatable(op1)[event] or metatable(op2)[event]
     end

    By using this function, the behavior of the op1 + op2 is 

         function add_event (op1, op2)
       local o1, o2 = tonumber(op1), tonumber(op2)
       if o1 and o2 then  -- both operands are numeric?
         return o1 + o2   -- '+' here is the primitive 'add'
       else  -- at least one of the operands is not numeric
         local h = getbinhandler(op1, op2, "__add")
         if h then
           -- call the handler with both operands
           return (h(op1, op2))
         else  -- no handler available: default behavior
           error(···)
         end
       end
     end

  • "sub": the - operation. Behavior similar to the "add" operation.
  • "mul": the * operation. Behavior similar to the "add" operation.
  • "div": the / operation. Behavior similar to the "add" operation.
  • "mod": the % operation. Behavior similar to the "add" operation, with the operation o1 - floor(o1/o2)*o2 as the primitive operation.
  • "pow": the ^ (exponentiation) operation. Behavior similar to the "add" operation, with the function pow (from the C math library) as the primitive operation.
  • "unm": the unary - operation. 
         function unm_event (op)
       local o = tonumber(op)
       if o then  -- operand is numeric?
         return -o  -- '-' here is the primitive 'unm'
       else  -- the operand is not numeric.
         -- Try to get a handler from the operand
         local h = metatable(op).__unm
         if h then
           -- call the handler with the operand
           return (h(op))
         else  -- no handler available: default behavior
           error(···)
         end
       end
     end

  • "concat": the .. (concatenation) operation. 
         function concat_event (op1, op2)
       if (type(op1) == "string" or type(op1) == "number") and
          (type(op2) == "string" or type(op2) == "number") then
         return op1 .. op2  -- primitive string concatenation
       else
         local h = getbinhandler(op1, op2, "__concat")
         if h then
           return (h(op1, op2))
         else
           error(···)
         end
       end
     end

  • "len": the # operation. 
         function len_event (op)
       if type(op) == "string" then
         return strlen(op)         -- primitive string length
       elseif type(op) == "table" then
         return #op                -- primitive table length
       else
         local h = metatable(op).__len
         if h then
           -- call the handler with the operand
           return (h(op))
         else  -- no handler available: default behavior
           error(···)
         end
       end
     end

    See §2.5.5 for a description of the length of a table.

  • "eq": the == operation. The function getcomphandler defines how Lua chooses a metamethod for comparison operators. A metamethod only is selected when both objects being compared have the same type and the same metamethod for the selected operation. 
         function getcomphandler (op1, op2, event)
       if type(op1) ~= type(op2) then return nil end
       local mm1 = metatable(op1)[event]
       local mm2 = metatable(op2)[event]
       if mm1 == mm2 then return mm1 else return nil end
     end

    The "eq" event is defined as follows: 

         function eq_event (op1, op2)
       if type(op1) ~= type(op2) then  -- different types?
         return false   -- different objects
       end
       if op1 == op2 then   -- primitive equal?
         return true   -- objects are equal
       end
       -- try metamethod
       local h = getcomphandler(op1, op2, "__eq")
       if h then
         return (h(op1, op2))
       else
         return false
       end
     end

    a ~= b is equivalent to not (a == b).

  • "lt": the < operation. 
         function lt_event (op1, op2)
       if type(op1) == "number" and type(op2) == "number" then
         return op1 < op2   -- numeric comparison
       elseif type(op1) == "string" and type(op2) == "string" then
         return op1 < op2   -- lexicographic comparison
       else
         local h = getcomphandler(op1, op2, "__lt")
         if h then
           return (h(op1, op2))
         else
           error(···)
         end
       end
     end

    a > b is equivalent to b < a.

  • "le": the <= operation. 
         function le_event (op1, op2)
       if type(op1) == "number" and type(op2) == "number" then
         return op1 <= op2   -- numeric comparison
       elseif type(op1) == "string" and type(op2) == "string" then
         return op1 <= op2   -- lexicographic comparison
       else
         local h = getcomphandler(op1, op2, "__le")
         if h then
           return (h(op1, op2))
         else
           h = getcomphandler(op1, op2, "__lt")
           if h then
             return not h(op2, op1)
           else
             error(···)
           end
         end
       end
     end

    a >= b is equivalent to b <= a. Note that, in the absence of a "le" metamethod, Lua tries the "lt", assuming that a <= b is equivalent to not (b < a).

  • "index": The indexing access table[key]. 
         function gettable_event (table, key)
       local h
       if type(table) == "table" then
         local v = rawget(table, key)
         if v ~= nil then return v end
         h = metatable(table).__index
         if h == nil then return nil end
       else
         h = metatable(table).__index
         if h == nil then
           error(···)
         end
       end
       if type(h) == "function" then
         return (h(table, key))     -- call the handler
       else return h[key]           -- or repeat operation on it
       end
     end

  • "newindex": The indexing assignment table[key] = value. 
         function settable_event (table, key, value)
       local h
       if type(table) == "table" then
         local v = rawget(table, key)
         if v ~= nil then rawset(table, key, value); return end
         h = metatable(table).__newindex
         if h == nil then rawset(table, key, value); return end
       else
         h = metatable(table).__newindex
         if h == nil then
           error(···)
         end
       end
       if type(h) == "function" then
         h(table, key,value)           -- call the handler
       else h[key] = value             -- or repeat operation on it
       end
     end

  • "call": called when Lua calls a value. 
         function function_event (func, ...)
       if type(func) == "function" then
         return func(...)   -- primitive call
       else
         local h = metatable(func).__call
         if h then
           return h(func, ...)
         else
           error(···)
         end
       end
     end

2.9 - Environments

Besides metatables, objects of types thread, function, and userdata have another table associated with them, called their environment. Like metatables, environments are regular tables and multiple objects can share the same environment.

Threads are created sharing the environment of the creating thread. Userdata and C functions are created sharing the environment of the creating C function. Non-nested Lua functions (created by loadfile, loadstring or load) are created sharing the environment of the creating thread. Nested Lua functions are created sharing the environment of the creating Lua function.

Environments associated with userdata have no meaning for Lua. It is only a convenience feature for programmers to associate a table to a userdata.

Environments associated with threads are called global environments. They are used as the default environment for threads and non-nested Lua functions created by the thread and can be directly accessed by C code (see §3.3).

The environment associated with a C function can be directly accessed by C code (see §3.3). It is used as the default environment for other C functions and userdata created by the function.

Environments associated with Lua functions are used to resolve all accesses to global variables within the function (see §2.3). They are used as the default environment for nested Lua functions created by the function.

You can change the environment of a Lua function or the running thread by calling setfenv. You can get the environment of a Lua function or the running thread by calling getfenv. To manipulate the environment of other objects (userdata, C functions, other threads) you must use the C API.

2.10 - Garbage Collection

Lua performs automatic memory management. This means that you have to worry neither about allocating memory for new objects nor about freeing it when the objects are no longer needed. Lua manages memory automatically by running a garbage collector from time to time to collect all dead objects (that is, objects that are no longer accessible from Lua). All memory used by Lua is subject to automatic management: tables, userdata, functions, threads, strings, etc.

Lua implements an incremental mark-and-sweep collector. It uses two numbers to control its garbage-collection cycles: the garbage-collector pause and the garbage-collector step multiplier. Both use percentage points as units (so that a value of 100 means an internal value of 1).

The garbage-collector pause controls how long the collector waits before starting a new cycle. Larger values make the collector less aggressive. Values smaller than 100 mean the collector will not wait to start a new cycle. A value of 200 means that the collector waits for the total memory in use to double before starting a new cycle.

The step multiplier controls the relative speed of the collector relative to memory allocation. Larger values make the collector more aggressive but also increase the size of each incremental step. Values smaller than 100 make the collector too slow and can result in the collector never finishing a cycle. The default, 200, means that the collector runs at "twice" the speed of memory allocation.

You can change these numbers by calling lua_gc in C or collectgarbage in Lua. With these functions you can also control the collector directly (e.g., stop and restart it).

2.10.1 - Garbage-Collection Metamethods

Using the C API, you can set garbage-collector metamethods for userdata (see §2.8). These metamethods are also called finalizers. Finalizers allow you to coordinate Lua's garbage collection with external resource management (such as closing files, network or database connections, or freeing your own memory).

Garbage userdata with a field __gc in their metatables are not collected immediately by the garbage collector. Instead, Lua puts them in a list. After the collection, Lua does the equivalent of the following function for each userdata in that list: 

     function gc_event (udata)
       local h = metatable(udata).__gc
       if h then
         h(udata)
       end
     end

At the end of each garbage-collection cycle, the finalizers for userdata are called in reverse order of their creation, among those collected in that cycle. That is, the first finalizer to be called is the one associated with the userdata created last in the program. The userdata itself is freed only in the next garbage-collection cycle.

2.10.2 - Weak Tables

A weak table is a table whose elements are weak references. A weak reference is ignored by the garbage collector. In other words, if the only references to an object are weak references, then the garbage collector will collect this object.

A weak table can have weak keys, weak values, or both. A table with weak keys allows the collection of its keys, but prevents the collection of its values. A table with both weak keys and weak values allows the collection of both keys and values. In any case, if either the key or the value is collected, the whole pair is removed from the table. The weakness of a table is controlled by the __mode field of its metatable. If the __mode field is a string containing the character 'k', the keys in the table are weak. If __mode contains 'v', the values in the table are weak.

After you use a table as a metatable, you should not change the value of its __mode field. Otherwise, the weak behavior of the tables controlled by this metatable is undefined.

2.11 - Coroutines

Lua supports coroutines, also called collaborative multithreading. A coroutine in Lua represents an independent thread of execution. Unlike threads in multithread systems, however, a coroutine only suspends its execution by explicitly calling a yield function.

You create a coroutine with a call to coroutine.create. Its sole argument is a function that is the main function of the coroutine. The create function only creates a new coroutine and returns a handle to it (an object of type thread); it does not start the coroutine execution.

When you first call coroutine.resume, passing as its first argument a thread returned by coroutine.create, the coroutine starts its execution, at the first line of its main function. Extra arguments passed to coroutine.resume are passed on to the coroutine main function. After the coroutine starts running, it runs until it terminates or yields.

A coroutine can terminate its execution in two ways: normally, when its main function returns (explicitly or implicitly, after the last instruction); and abnormally, if there is an unprotected error. In the first case, coroutine.resume returns true, plus any values returned by the coroutine main function. In case of errors, coroutine.resume returns false plus an error message.

A coroutine yields by calling coroutine.yield. When a coroutine yields, the corresponding coroutine.resume returns immediately, even if the yield happens inside nested function calls (that is, not in the main function, but in a function directly or indirectly called by the main function). In the case of a yield, coroutine.resume also returns true, plus any values passed to coroutine.yield. The next time you resume the same coroutine, it continues its execution from the point where it yielded, with the call to coroutine.yield returning any extra arguments passed to coroutine.resume.

Like coroutine.create, the coroutine.wrap function also creates a coroutine, but instead of returning the coroutine itself, it returns a function that, when called, resumes the coroutine. Any arguments passed to this function go as extra arguments to coroutine.resume. coroutine.wrap returns all the values returned by coroutine.resume, except the first one (the boolean error code). Unlike coroutine.resume, coroutine.wrap does not catch errors; any error is propagated to the caller.

As an example, consider the following code: 

     function foo (a)
       print("foo", a)
       return coroutine.yield(2*a)
     end
     
     co = coroutine.create(function (a,b)
           print("co-body", a, b)
           local r = foo(a+1)
           print("co-body", r)
           local r, s = coroutine.yield(a+b, a-b)
           print("co-body", r, s)
           return b, "end"
     end)
            
     print("main", coroutine.resume(co, 1, 10))
     print("main", coroutine.resume(co, "r"))
     print("main", coroutine.resume(co, "x", "y"))
     print("main", coroutine.resume(co, "x", "y"))

When you run it, it produces the following output: 

     co-body 1       10
     foo     2
     
     main    true    4
     co-body r
     main    true    11      -9
     co-body x       y
     main    true    10      end
     main    false   cannot resume dead coroutine

3 - The Application Program Interface

This section describes the C API for Lua, that is, the set of C functions available to the host program to communicate with Lua. All API functions and related types and constants are declared in the header file lua.h.

Even when we use the term "function", any facility in the API may be provided as a macro instead. All such macros use each of their arguments exactly once (except for the first argument, which is always a Lua state), and so do not generate any hidden side-effects.

As in most C libraries, the Lua API functions do not check their arguments for validity or consistency. However, you can change this behavior by compiling Lua with a proper definition for the macro luai_apicheck, in file luaconf.h.

3.1 - The Stack

Lua uses a virtual stack to pass values to and from C. Each element in this stack represents a Lua value (nil, number, string, etc.).

Whenever Lua calls C, the called function gets a new stack, which is independent of previous stacks and of stacks of C functions that are still active. This stack initially contains any arguments to the C function and it is where the C function pushes its results to be returned to the caller (see lua_CFunction).

For convenience, most query operations in the API do not follow a strict stack discipline. Instead, they can refer to any element in the stack by using an index: A positive index represents an absolute stack position (starting at 1); a negative index represents an offset relative to the top of the stack. More specifically, if the stack has n elements, then index 1 represents the first element (that is, the element that was pushed onto the stack first) and index n represents the last element; index -1 also represents the last element (that is, the element at the top) and index -n represents the first element. We say that an index is valid if it lies between 1 and the stack top (that is, if 1 ≤ abs(index) ≤ top).

3.2 - Stack Size

When you interact with Lua API, you are responsible for ensuring consistency. In particular, you are responsible for controlling stack overflow. You can use the function lua_checkstack to grow the stack size.

Whenever Lua calls C, it ensures that at least LUA_MINSTACK stack positions are available. LUA_MINSTACK is defined as 20, so that usually you do not have to worry about stack space unless your code has loops pushing elements onto the stack.

Most query functions accept as indices any value inside the available stack space, that is, indices up to the maximum stack size you have set through lua_checkstack. Such indices are called acceptable indices. More formally, we define an acceptable index as follows: 

     (index < 0 && abs(index) <= top) ||
     (index > 0 && index <= stackspace)

Note that 0 is never an acceptable index.

3.3 - Pseudo-Indices

Unless otherwise noted, any function that accepts valid indices can also be called with pseudo-indices, which represent some Lua values that are accessible to C code but which are not in the stack. Pseudo-indices are used to access the thread environment, the function environment, the registry, and the upvalues of a C function (see §3.4).

The thread environment (where global variables live) is always at pseudo-index LUA_GLOBALSINDEX. The environment of the running C function is always at pseudo-index LUA_ENVIRONINDEX.

To access and change the value of global variables, you can use regular table operations over an environment table. For instance, to access the value of a global variable, do 

     lua_getfield(L, LUA_GLOBALSINDEX, varname);

3.4 - C Closures

When a C function is created, it is possible to associate some values with it, thus creating a C closure; these values are called upvalues and are accessible to the function whenever it is called (see lua_pushcclosure).

Whenever a C function is called, its upvalues are located at specific pseudo-indices. These pseudo-indices are produced by the macro lua_upvalueindex. The first value associated with a function is at position lua_upvalueindex(1), and so on. Any access to lua_upvalueindex(n), where n is greater than the number of upvalues of the current function (but not greater than 256), produces an acceptable (but invalid) index.

3.5 - Registry

Lua provides a registry, a pre-defined table that can be used by any C code to store whatever Lua value it needs to store. This table is always located at pseudo-index LUA_REGISTRYINDEX. Any C library can store data into this table, but it should take care to choose keys different from those used by other libraries, to avoid collisions. Typically, you should use as key a string containing your library name or a light userdata with the address of a C object in your code.

The integer keys in the registry are used by the reference mechanism, implemented by the auxiliary library, and therefore should not be used for other purposes.

3.6 - Error Handling in C

Internally, Lua uses the C longjmp facility to handle errors. (You can also choose to use exceptions if you use C++; see file luaconf.h.) When Lua faces any error (such as memory allocation errors, type errors, syntax errors, and runtime errors) it raises an error; that is, it does a long jump. A protected environment uses setjmp to set a recover point; any error jumps to the most recent active recover point.

Most functions in the API can throw an error, for instance due to a memory allocation error. The documentation for each function indicates whether it can throw errors.

Inside a C function you can throw an error by calling lua_error.

3.7 - Functions and Types

Here we list all functions and types from the C API in alphabetical order. Each function has an indicator like this: [-o, +p, x]

The first field, o, is how many elements the function pops from the stack. The second field, p, is how many elements the function pushes onto the stack. (Any function always pushes its results after popping its arguments.) A field in the form x|y means the function can push (or pop) x or y elements, depending on the situation; an interrogation mark '?' means that we cannot know how many elements the function pops/pushes by looking only at its arguments (e.g., they may depend on what is on the stack). The third field, x, tells whether the function may throw errors: '-' means the function never throws any error; 'm' means the function may throw an error only due to not enough memory; 'e' means the function may throw other kinds of errors; 'v' means the function may throw an error on purpose.

lua_Alloc

typedef void * (*lua_Alloc) (void *ud,
                             void *ptr,
                             size_t osize,
                             size_t nsize);

The type of the memory-allocation function used by Lua states. The allocator function must provide a functionality similar to realloc, but not exactly the same. Its arguments are ud, an opaque pointer passed to lua_newstate; ptr, a pointer to the block being allocated/reallocated/freed; osize, the original size of the block; nsize, the new size of the block. ptr is NULL if and only if osize is zero. When nsize is zero, the allocator must return NULL; if osize is not zero, it should free the block pointed to by ptr. When nsize is not zero, the allocator returns NULL if and only if it cannot fill the request. When nsize is not zero and osize is zero, the allocator should behave like malloc. When nsize and osize are not zero, the allocator behaves like realloc. Lua assumes that the allocator never fails when osize >= nsize.

Here is a simple implementation for the allocator function. It is used in the auxiliary library by luaL_newstate. 

     static void *l_alloc (void *ud, void *ptr, size_t osize,
                                                size_t nsize) {
       (void)ud;  (void)osize;  /* not used */
       if (nsize == 0) {
         free(ptr);
         return NULL;
       }
       else
         return realloc(ptr, nsize);
     }

This code assumes that free(NULL) has no effect and that realloc(NULL, size) is equivalent to malloc(size). ANSI C ensures both behaviors.

lua_atpanic

[-0, +0, -] 

lua_CFunction lua_atpanic (lua_State *L, lua_CFunction panicf);

Sets a new panic function and returns the old one.

If an error happens outside any protected environment, Lua calls a panic function and then calls exit(EXIT_FAILURE), thus exiting the host application. Your panic function can avoid this exit by never returning (e.g., doing a long jump).

The panic function can access the error message at the top of the stack.

lua_call

[-(nargs + 1), +nresults, e] 

void lua_call (lua_State *L, int nargs, int nresults);

Calls a function.

To call a function you must use the following protocol: first, the function to be called is pushed onto the stack; then, the arguments to the function are pushed in direct order; that is, the first argument is pushed first. Finally you call lua_call; nargs is the number of arguments that you pushed onto the stack. All arguments and the function value are popped from the stack when the function is called. The function results are pushed onto the stack when the function returns. The number of results is adjusted to nresults, unless nresults is LUA_MULTRET. In this case, all results from the function are pushed. Lua takes care that the returned values fit into the stack space. The function results are pushed onto the stack in direct order (the first result is pushed first), so that after the call the last result is on the top of the stack.

Any error inside the called function is propagated upwards (with a longjmp).

The following example shows how the host program can do the equivalent to this Lua code: 

     a = f("how", t.x, 14)

Here it is in C: 

     lua_getfield(L, LUA_GLOBALSINDEX, "f"); /* function to be called */
     lua_pushstring(L, "how");                        /* 1st argument */
     lua_getfield(L, LUA_GLOBALSINDEX, "t");   /* table to be indexed */
     lua_getfield(L, -1, "x");        /* push result of t.x (2nd arg) */
     lua_remove(L, -2);                  /* remove 't' from the stack */
     lua_pushinteger(L, 14);                          /* 3rd argument */
     lua_call(L, 3, 1);     /* call 'f' with 3 arguments and 1 result */
     lua_setfield(L, LUA_GLOBALSINDEX, "a");        /* set global 'a' */

Note that the code above is "balanced": at its end, the stack is back to its original configuration. This is considered good programming practice.

lua_CFunction

typedef int (*lua_CFunction) (lua_State *L);

Type for C functions.

In order to communicate properly with Lua, a C function must use the following protocol, which defines the way parameters and results are passed: a C function receives its arguments from Lua in its stack in direct order (the first argument is pushed first). So, when the function starts, lua_gettop(L) returns the number of arguments received by the function. The first argument (if any) is at index 1 and its last argument is at index lua_gettop(L). To return values to Lua, a C function just pushes them onto the stack, in direct order (the first result is pushed first), and returns the number of results. Any other value in the stack below the results will be properly discarded by Lua. Like a Lua function, a C function called by Lua can also return many results.

As an example, the following function receives a variable number of numerical arguments and returns their average and sum: 

     static int foo (lua_State *L) {
       int n = lua_gettop(L);    /* number of arguments */
       lua_Number sum = 0;
       int i;
       for (i = 1; i <= n; i++) {
         if (!lua_isnumber(L, i)) {
           lua_pushstring(L, "incorrect argument");
           lua_error(L);
         }
         sum += lua_tonumber(L, i);
       }
       lua_pushnumber(L, sum/n);        /* first result */
       lua_pushnumber(L, sum);         /* second result */
       return 2;                   /* number of results */
     }

lua_checkstack

[-0, +0, m] 

int lua_checkstack (lua_State *L, int extra);

Ensures that there are at least extra free stack slots in the stack. It returns false if it cannot grow the stack to that size. This function never shrinks the stack; if the stack is already larger than the new size, it is left unchanged.

lua_close

[-0, +0, -] 

void lua_close (lua_State *L);

Destroys all objects in the given Lua state (calling the corresponding garbage-collection metamethods, if any) and frees all dynamic memory used by this state. On several platforms, you may not need to call this function, because all resources are naturally released when the host program ends. On the other hand, long-running programs, such as a daemon or a web server, might need to release states as soon as they are not needed, to avoid growing too large.

lua_concat

[-n, +1, e] 

void lua_concat (lua_State *L, int n);

Concatenates the n values at the top of the stack, pops them, and leaves the result at the top. If n is 1, the result is the single value on the stack (that is, the function does nothing); if n is 0, the result is the empty string. Concatenation is performed following the usual semantics of Lua (see §2.5.4).

lua_cpcall

[-0, +(0|1), -] 

int lua_cpcall (lua_State *L, lua_CFunction func, void *ud);

Calls the C function func in protected mode. func starts with only one element in its stack, a light userdata containing ud. In case of errors, lua_cpcall returns the same error codes as lua_pcall, plus the error object on the top of the stack; otherwise, it returns zero, and does not change the stack. All values returned by func are discarded.

lua_createtable

[-0, +1, m] 

void lua_createtable (lua_State *L, int narr, int nrec);

Creates a new empty table and pushes it onto the stack. The new table has space pre-allocated for narr array elements and nrec non-array elements. This pre-allocation is useful when you know exactly how many elements the table will have. Otherwise you can use the function lua_newtable.

lua_dump

[-0, +0, m] 

int lua_dump (lua_State *L, lua_Writer writer, void *data);

Dumps a function as a binary chunk. Receives a Lua function on the top of the stack and produces a binary chunk that, if loaded again, results in a function equivalent to the one dumped. As it produces parts of the chunk, lua_dump calls function writer (see lua_Writer) with the given data to write them.

The value returned is the error code returned by the last call to the writer; 0 means no errors.

This function does not pop the Lua function from the stack.

lua_equal

[-0, +0, e] 

int lua_equal (lua_State *L, int index1, int index2);

Returns 1 if the two values in acceptable indices index1 and index2 are equal, following the semantics of the Lua == operator (that is, may call metamethods). Otherwise returns 0. Also returns 0 if any of the indices is non valid.

lua_error

[-1, +0, v] 

int lua_error (lua_State *L);

Generates a Lua error. The error message (which can actually be a Lua value of any type) must be on the stack top. This function does a long jump, and therefore never returns. (see luaL_error).

lua_gc

[-0, +0, e] 

int lua_gc (lua_State *L, int what, int data);

Controls the garbage collector.

This function performs several tasks, according to the value of the parameter what:

  • LUA_GCSTOP: stops the garbage collector.
  • LUA_GCRESTART: restarts the garbage collector.
  • LUA_GCCOLLECT: performs a full garbage-collection cycle.
  • LUA_GCCOUNT: returns the current amount of memory (in Kbytes) in use by Lua.
  • LUA_GCCOUNTB: returns the remainder of dividing the current amount of bytes of memory in use by Lua by 1024.
  • LUA_GCSTEP: performs an incremental step of garbage collection. The step "size" is controlled by data (larger values mean more steps) in a non-specified way. If you want to control the step size you must experimentally tune the value of data. The function returns 1 if the step finished a garbage-collection cycle.
  • LUA_GCSETPAUSE: sets data as the new value for the pause of the collector (see §2.10). The function returns the previous value of the pause.
  • LUA_GCSETSTEPMUL: sets data as the new value for the step multiplier of the collector (see §2.10). The function returns the previous value of the step multiplier.

lua_getallocf

[-0, +0, -] 

lua_Alloc lua_getallocf (lua_State *L, void **ud);

Returns the memory-allocation function of a given state. If ud is not NULL, Lua stores in *ud the opaque pointer passed to lua_newstate.

lua_getfenv

[-0, +1, -] 

void lua_getfenv (lua_State *L, int index);

Pushes onto the stack the environment table of the value at the given index.

lua_getfield

[-0, +1, e] 

void lua_getfield (lua_State *L, int index, const char *k);

Pushes onto the stack the value t[k], where t is the value at the given valid index. As in Lua, this function may trigger a metamethod for the "index" event (see §2.8).

lua_getglobal

[-0, +1, e] 

void lua_getglobal (lua_State *L, const char *name);

Pushes onto the stack the value of the global name. It is defined as a macro: 

     #define lua_getglobal(L,s)  lua_getfield(L, LUA_GLOBALSINDEX, s)

lua_getmetatable

[-0, +(0|1), -] 

int lua_getmetatable (lua_State *L, int index);

Pushes onto the stack the metatable of the value at the given acceptable index. If the index is not valid, or if the value does not have a metatable, the function returns 0 and pushes nothing on the stack.

lua_gettable

[-1, +1, e] 

void lua_gettable (lua_State *L, int index);

Pushes onto the stack the value t[k], where t is the value at the given valid index and k is the value at the top of the stack.

This function pops the key from the stack (putting the resulting value in its place). As in Lua, this function may trigger a metamethod for the "index" event (see §2.8).

lua_gettop

[-0, +0, -] 

int lua_gettop (lua_State *L);

Returns the index of the top element in the stack. Because indices start at 1, this result is equal to the number of elements in the stack (and so 0 means an empty stack).

lua_insert

[-1, +1, -] 

void lua_insert (lua_State *L, int index);

Moves the top element into the given valid index, shifting up the elements above this index to open space. Cannot be called with a pseudo-index, because a pseudo-index is not an actual stack position.

lua_Integer

typedef ptrdiff_t lua_Integer;

The type used by the Lua API to represent integral values.

By default it is a ptrdiff_t, which is usually the largest signed integral type the machine handles "comfortably".

lua_isboolean

[-0, +0, -] 

int lua_isboolean (lua_State *L, int index);

Returns 1 if the value at the given acceptable index has type boolean, and 0 otherwise.

lua_iscfunction

[-0, +0, -] 

int lua_iscfunction (lua_State *L, int index);

Returns 1 if the value at the given acceptable index is a C function, and 0 otherwise.

lua_isfunction

[-0, +0, -] 

int lua_isfunction (lua_State *L, int index);

Returns 1 if the value at the given acceptable index is a function (either C or Lua), and 0 otherwise.

lua_islightuserdata

[-0, +0, -] 

int lua_islightuserdata (lua_State *L, int index);

Returns 1 if the value at the given acceptable index is a light userdata, and 0 otherwise.

lua_isnil

[-0, +0, -] 

int lua_isnil (lua_State *L, int index);

Returns 1 if the value at the given acceptable index is nil, and 0 otherwise.

lua_isnone

[-0, +0, -] 

int lua_isnone (lua_State *L, int index);

Returns 1 if the given acceptable index is not valid (that is, it refers to an element outside the current stack), and 0 otherwise.

lua_isnoneornil

[-0, +0, -] 

int lua_isnoneornil (lua_State *L, int index);

Returns 1 if the given acceptable index is not valid (that is, it refers to an element outside the current stack) or if the value at this index is nil, and 0 otherwise.

lua_isnumber

[-0, +0, -] 

int lua_isnumber (lua_State *L, int index);

Returns 1 if the value at the given acceptable index is a number or a string convertible to a number, and 0 otherwise.

lua_isstring

[-0, +0, -] 

int lua_isstring (lua_State *L, int index);

Returns 1 if the value at the given acceptable index is a string or a number (which is always convertible to a string), and 0 otherwise.

lua_istable

[-0, +0, -] 

int lua_istable (lua_State *L, int index);

Returns 1 if the value at the given acceptable index is a table, and 0 otherwise.

lua_isthread

[-0, +0, -] 

int lua_isthread (lua_State *L, int index);

Returns 1 if the value at the given acceptable index is a thread, and 0 otherwise.

lua_isuserdata

[-0, +0, -] 

int lua_isuserdata (lua_State *L, int index);

Returns 1 if the value at the given acceptable index is a userdata (either full or light), and 0 otherwise.

lua_lessthan

[-0, +0, e] 

int lua_lessthan (lua_State *L, int index1, int index2);

Returns 1 if the value at acceptable index index1 is smaller than the value at acceptable index index2, following the semantics of the Lua < operator (that is, may call metamethods). Otherwise returns 0. Also returns 0 if any of the indices is non valid.

lua_load

[-0, +1, -] 

int lua_load (lua_State *L,
              lua_Reader reader,
              void *data,
              const char *chunkname);

Loads a Lua chunk. If there are no errors, lua_load pushes the compiled chunk as a Lua function on top of the stack. Otherwise, it pushes an error message. The return values of lua_load are:

This function only loads a chunk; it does not run it.

lua_load automatically detects whether the chunk is text or binary, and loads it accordingly (see program luac).

The lua_load function uses a user-supplied reader function to read the chunk (see lua_Reader). The data argument is an opaque value passed to the reader function.

The chunkname argument gives a name to the chunk, which is used for error messages and in debug information (see §3.8).

lua_newstate

[-0, +0, -] 

lua_State *lua_newstate (lua_Alloc f, void *ud);

Creates a new, independent state. Returns NULL if cannot create the state (due to lack of memory). The argument f is the allocator function; Lua does all memory allocation for this state through this function. The second argument, ud, is an opaque pointer that Lua simply passes to the allocator in every call.

lua_newtable

[-0, +1, m] 

void lua_newtable (lua_State *L);

Creates a new empty table and pushes it onto the stack. It is equivalent to lua_createtable(L, 0, 0).

lua_newthread

[-0, +1, m] 

lua_State *lua_newthread (lua_State *L);

Creates a new thread, pushes it on the stack, and returns a pointer to a lua_State that represents this new thread. The new state returned by this function shares with the original state all global objects (such as tables), but has an independent execution stack.

There is no explicit function to close or to destroy a thread. Threads are subject to garbage collection, like any Lua object.

lua_newuserdata

[-0, +1, m] 

void *lua_newuserdata (lua_State *L, size_t size);

This function allocates a new block of memory with the given size, pushes onto the stack a new full userdata with the block address, and returns this address.

Userdata represent C values in Lua. A full userdata represents a block of memory. It is an object (like a table): you must create it, it can have its own metatable, and you can detect when it is being collected. A full userdata is only equal to itself (under raw equality).

When Lua collects a full userdata with a gc metamethod, Lua calls the metamethod and marks the userdata as finalized. When this userdata is collected again then Lua frees its corresponding memory.

lua_next

[-1, +(2|0), e] 

int lua_next (lua_State *L, int index);

Pops a key from the stack, and pushes a key-value pair from the table at the given index (the "next" pair after the given key). If there are no more elements in the table, then lua_next returns 0 (and pushes nothing).

A typical traversal looks like this: 

     /* table is in the stack at index 't' */
     lua_pushnil(L);  /* first key */
     while (lua_next(L, t) != 0) {
       /* uses 'key' (at index -2) and 'value' (at index -1) */
       printf("%s - %s\n",
              lua_typename(L, lua_type(L, -2)),
              lua_typename(L, lua_type(L, -1)));
       /* removes 'value'; keeps 'key' for next iteration */
       lua_pop(L, 1);
     }

While traversing a table, do not call lua_tolstring directly on a key, unless you know that the key is actually a string. Recall that lua_tolstring changes the value at the given index; this confuses the next call to lua_next.

lua_Number

typedef double lua_Number;

The type of numbers in Lua. By default, it is double, but that can be changed in luaconf.h.

Through the configuration file you can change Lua to operate with another type for numbers (e.g., float or long).

lua_objlen

[-0, +0, -] 

size_t lua_objlen (lua_State *L, int index);

Returns the "length" of the value at the given acceptable index: for strings, this is the string length; for tables, this is the result of the length operator ('#'); for userdata, this is the size of the block of memory allocated for the userdata; for other values, it is 0.

lua_pcall

[-(nargs + 1), +(nresults|1), -] 

int lua_pcall (lua_State *L, int nargs, int nresults, int errfunc);

Calls a function in protected mode.

Both nargs and nresults have the same meaning as in lua_call. If there are no errors during the call, lua_pcall behaves exactly like lua_call. However, if there is any error, lua_pcall catches it, pushes a single value on the stack (the error message), and returns an error code. Like lua_call, lua_pcall always removes the function and its arguments from the stack.

If errfunc is 0, then the error message returned on the stack is exactly the original error message. Otherwise, errfunc is the stack index of an error handler function. (In the current implementation, this index cannot be a pseudo-index.) In case of runtime errors, this function will be called with the error message and its return value will be the message returned on the stack by lua_pcall.

Typically, the error handler function is used to add more debug information to the error message, such as a stack traceback. Such information cannot be gathered after the return of lua_pcall, since by then the stack has unwound.

The lua_pcall function returns 0 in case of success or one of the following error codes (defined in lua.h):

  • LUA_ERRRUN: a runtime error.
  • LUA_ERRMEM: memory allocation error. For such errors, Lua does not call the error handler function.
  • LUA_ERRERR: error while running the error handler function.

lua_pop

[-n, +0, -] 

void lua_pop (lua_State *L, int n);

Pops n elements from the stack.

lua_pushboolean

[-0, +1, -] 

void lua_pushboolean (lua_State *L, int b);

Pushes a boolean value with value b onto the stack.

lua_pushcclosure

[-n, +1, m] 

void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n);

Pushes a new C closure onto the stack.

When a C function is created, it is possible to associate some values with it, thus creating a C closure (see §3.4); these values are then accessible to the function whenever it is called. To associate values with a C function, first these values should be pushed onto the stack (when there are multiple values, the first value is pushed first). Then lua_pushcclosure is called to create and push the C function onto the stack, with the argument n telling how many values should be associated with the function. lua_pushcclosure also pops these values from the stack.

The maximum value for n is 255.

lua_pushcfunction

[-0, +1, m] 

void lua_pushcfunction (lua_State *L, lua_CFunction f);

Pushes a C function onto the stack. This function receives a pointer to a C function and pushes onto the stack a Lua value of type function that, when called, invokes the corresponding C function.

Any function to be registered in Lua must follow the correct protocol to receive its parameters and return its results (see lua_CFunction).

lua_pushcfunction is defined as a macro: 

     #define lua_pushcfunction(L,f)  lua_pushcclosure(L,f,0)

lua_pushfstring

[-0, +1, m] 

const char *lua_pushfstring (lua_State *L, const char *fmt, ...);

Pushes onto the stack a formatted string and returns a pointer to this string. It is similar to the C function sprintf, but has some important differences:

  • You do not have to allocate space for the result: the result is a Lua string and Lua takes care of memory allocation (and deallocation, through garbage collection).
  • The conversion specifiers are quite restricted. There are no flags, widths, or precisions. The conversion specifiers can only be '%%' (inserts a '%' in the string), '%s' (inserts a zero-terminated string, with no size restrictions), '%f' (inserts a lua_Number), '%p' (inserts a pointer as a hexadecimal numeral), '%d' (inserts an int), and '%c' (inserts an int as a character).

lua_pushinteger

[-0, +1, -] 

void lua_pushinteger (lua_State *L, lua_Integer n);

Pushes a number with value n onto the stack.

lua_pushlightuserdata

[-0, +1, -] 

void lua_pushlightuserdata (lua_State *L, void *p);

Pushes a light userdata onto the stack.

Userdata represent C values in Lua. A light userdata represents a pointer. It is a value (like a number): you do not create it, it has no individual metatable, and it is not collected (as it was never created). A light userdata is equal to "any" light userdata with the same C address.

lua_pushliteral

[-0, +1, m] 

void lua_pushliteral (lua_State *L, const char *s);

This macro is equivalent to lua_pushlstring, but can be used only when s is a literal string. In these cases, it automatically provides the string length.

lua_pushlstring

[-0, +1, m] 

void lua_pushlstring (lua_State *L, const char *s, size_t len);

Pushes the string pointed to by s with size len onto the stack. Lua makes (or reuses) an internal copy of the given string, so the memory at s can be freed or reused immediately after the function returns. The string can contain embedded zeros.

lua_pushnil

[-0, +1, -] 

void lua_pushnil (lua_State *L);

Pushes a nil value onto the stack.

lua_pushnumber

[-0, +1, -] 

void lua_pushnumber (lua_State *L, lua_Number n);

Pushes a number with value n onto the stack.

lua_pushstring

[-0, +1, m] 

void lua_pushstring (lua_State *L, const char *s);

Pushes the zero-terminated string pointed to by s onto the stack. Lua makes (or reuses) an internal copy of the given string, so the memory at s can be freed or reused immediately after the function returns. The string cannot contain embedded zeros; it is assumed to end at the first zero.

lua_pushthread

[-0, +1, -] 

int lua_pushthread (lua_State *L);

Pushes the thread represented by L onto the stack. Returns 1 if this thread is the main thread of its state.

lua_pushvalue

[-0, +1, -] 

void lua_pushvalue (lua_State *L, int index);

Pushes a copy of the element at the given valid index onto the stack.

lua_pushvfstring

[-0, +1, m] 

const char *lua_pushvfstring (lua_State *L,
                              const char *fmt,
                              va_list argp);

Equivalent to lua_pushfstring, except that it receives a va_list instead of a variable number of arguments.

lua_rawequal

[-0, +0, -] 

int lua_rawequal (lua_State *L, int index1, int index2);

Returns 1 if the two values in acceptable indices index1 and index2 are primitively equal (that is, without calling metamethods). Otherwise returns 0. Also returns 0 if any of the indices are non valid.

lua_rawget

[-1, +1, -] 

void lua_rawget (lua_State *L, int index);

Similar to lua_gettable, but does a raw access (i.e., without metamethods).

lua_rawgeti

[-0, +1, -] 

void lua_rawgeti (lua_State *L, int index, int n);

Pushes onto the stack the value t[n], where t is the value at the given valid index. The access is raw; that is, it does not invoke metamethods.

lua_rawset

[-2, +0, m] 

void lua_rawset (lua_State *L, int index);

Similar to lua_settable, but does a raw assignment (i.e., without metamethods).

lua_rawseti

[-1, +0, m] 

void lua_rawseti (lua_State *L, int index, int n);

Does the equivalent of t[n] = v, where t is the value at the given valid index and v is the value at the top of the stack.

This function pops the value from the stack. The assignment is raw; that is, it does not invoke metamethods.

lua_Reader

typedef const char * (*lua_Reader) (lua_State *L,
                                    void *data,
                                    size_t *size);

The reader function used by lua_load. Every time it needs another piece of the chunk, lua_load calls the reader, passing along its data parameter. The reader must return a pointer to a block of memory with a new piece of the chunk and set size to the block size. The block must exist until the reader function is called again. To signal the end of the chunk, the reader must return NULL or set size to zero. The reader function may return pieces of any size greater than zero.

lua_register

[-0, +0, e] 

void lua_register (lua_State *L,
                   const char *name,
                   lua_CFunction f);

Sets the C function f as the new value of global name. It is defined as a macro: 

     #define lua_register(L,n,f) \
            (lua_pushcfunction(L, f), lua_setglobal(L, n))

lua_remove

[-1, +0, -] 

void lua_remove (lua_State *L, int index);

Removes the element at the given valid index, shifting down the elements above this index to fill the gap. Cannot be called with a pseudo-index, because a pseudo-index is not an actual stack position.

lua_replace

[-1, +0, -] 

void lua_replace (lua_State *L, int index);

Moves the top element into the given position (and pops it), without shifting any element (therefore replacing the value at the given position).

lua_resume

[-?, +?, -] 

int lua_resume (lua_State *L, int narg);

Starts and resumes a coroutine in a given thread.

To start a coroutine, you first create a new thread (see lua_newthread); then you push onto its stack the main function plus any arguments; then you call lua_resume, with narg being the number of arguments. This call returns when the coroutine suspends or finishes its execution. When it returns, the stack contains all values passed to lua_yield, or all values returned by the body function. lua_resume returns LUA_YIELD if the coroutine yields, 0 if the coroutine finishes its execution without errors, or an error code in case of errors (see lua_pcall). In case of errors, the stack is not unwound, so you can use the debug API over it. The error message is on the top of the stack. To restart a coroutine, you put on its stack only the values to be passed as results from yield, and then call lua_resume.

lua_setallocf

[-0, +0, -] 

void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);

Changes the allocator function of a given state to f with user data ud.

lua_setfenv

[-1, +0, -] 

int lua_setfenv (lua_State *L, int index);

Pops a table from the stack and sets it as the new environment for the value at the given index. If the value at the given index is neither a function nor a thread nor a userdata, lua_setfenv returns 0. Otherwise it returns 1.

lua_setfield

[-1, +0, e] 

void lua_setfield (lua_State *L, int index, const char *k);

Does the equivalent to t[k] = v, where t is the value at the given valid index and v is the value at the top of the stack.

This function pops the value from the stack. As in Lua, this function may trigger a metamethod for the "newindex" event (see §2.8).

lua_setglobal

[-1, +0, e] 

void lua_setglobal (lua_State *L, const char *name);

Pops a value from the stack and sets it as the new value of global name. It is defined as a macro: 

     #define lua_setglobal(L,s)   lua_setfield(L, LUA_GLOBALSINDEX, s)

lua_setmetatable

[-1, +0, -] 

int lua_setmetatable (lua_State *L, int index);

Pops a table from the stack and sets it as the new metatable for the value at the given acceptable index.

lua_settable

[-2, +0, e] 

void lua_settable (lua_State *L, int index);

Does the equivalent to t[k] = v, where t is the value at the given valid index, v is the value at the top of the stack, and k is the value just below the top.

This function pops both the key and the value from the stack. As in Lua, this function may trigger a metamethod for the "newindex" event (see §2.8).

lua_settop

[-?, +?, -] 

void lua_settop (lua_State *L, int index);

Accepts any acceptable index, or 0, and sets the stack top to this index. If the new top is larger than the old one, then the new elements are filled with nil. If index is 0, then all stack elements are removed.

lua_State

typedef struct lua_State lua_State;

Opaque structure that keeps the whole state of a Lua interpreter. The Lua library is fully reentrant: it has no global variables. All information about a state is kept in this structure.

A pointer to this state must be passed as the first argument to every function in the library, except to lua_newstate, which creates a Lua state from scratch.

lua_status

[-0, +0, -] 

int lua_status (lua_State *L);

Returns the status of the thread L.

The status can be 0 for a normal thread, an error code if the thread finished its execution with an error, or LUA_YIELD if the thread is suspended.

lua_toboolean

[-0, +0, -] 

int lua_toboolean (lua_State *L, int index);

Converts the Lua value at the given acceptable index to a C boolean value (0 or 1). Like all tests in Lua, lua_toboolean returns 1 for any Lua value different from false and nil; otherwise it returns 0. It also returns 0 when called with a non-valid index. (If you want to accept only actual boolean values, use lua_isboolean to test the value's type.)

lua_tocfunction

[-0, +0, -] 

lua_CFunction lua_tocfunction (lua_State *L, int index);

Converts a value at the given acceptable index to a C function. That value must be a C function; otherwise, returns NULL.

lua_tointeger

[-0, +0, -] 

lua_Integer lua_tointeger (lua_State *L, int index);

Converts the Lua value at the given acceptable index to the signed integral type lua_Integer. The Lua value must be a number or a string convertible to a number (see §2.2.1); otherwise, lua_tointeger returns 0.

If the number is not an integer, it is truncated in some non-specified way.

lua_tolstring

[-0, +0, m] 

const char *lua_tolstring (lua_State *L, int index, size_t *len);

Converts the Lua value at the given acceptable index to a C string. If len is not NULL, it also sets *len with the string length. The Lua value must be a string or a number; otherwise, the function returns NULL. If the value is a number, then lua_tolstring also changes the actual value in the stack to a string. (This change confuses lua_next when lua_tolstring is applied to keys during a table traversal.)

lua_tolstring returns a fully aligned pointer to a string inside the Lua state. This string always has a zero ('\0') after its last character (as in C), but can contain other zeros in its body. Because Lua has garbage collection, there is no guarantee that the pointer returned by lua_tolstring will be valid after the corresponding value is removed from the stack.

lua_tonumber

[-0, +0, -] 

lua_Number lua_tonumber (lua_State *L, int index);

Converts the Lua value at the given acceptable index to the C type lua_Number (see lua_Number). The Lua value must be a number or a string convertible to a number (see §2.2.1); otherwise, lua_tonumber returns 0.

lua_topointer

[-0, +0, -] 

const void *lua_topointer (lua_State *L, int index);

Converts the value at the given acceptable index to a generic C pointer (void*). The value can be a userdata, a table, a thread, or a function; otherwise, lua_topointer returns NULL. Different objects will give different pointers. There is no way to convert the pointer back to its original value.

Typically this function is used only for debug information.

lua_tostring

[-0, +0, m] 

const char *lua_tostring (lua_State *L, int index);

Equivalent to lua_tolstring with len equal to NULL.

lua_tothread

[-0, +0, -] 

lua_State *lua_tothread (lua_State *L, int index);

Converts the value at the given acceptable index to a Lua thread (represented as lua_State*). This value must be a thread; otherwise, the function returns NULL.

lua_touserdata

[-0, +0, -] 

void *lua_touserdata (lua_State *L, int index);

If the value at the given acceptable index is a full userdata, returns its block address. If the value is a light userdata, returns its pointer. Otherwise, returns NULL.

lua_type

[-0, +0, -] 

int lua_type (lua_State *L, int index);

Returns the type of the value in the given acceptable index, or LUA_TNONE for a non-valid index (that is, an index to an "empty" stack position). The types returned by lua_type are coded by the following constants defined in lua.h: LUA_TNIL, LUA_TNUMBER, LUA_TBOOLEAN, LUA_TSTRING, LUA_TTABLE, LUA_TFUNCTION, LUA_TUSERDATA, LUA_TTHREAD, and LUA_TLIGHTUSERDATA.

lua_typename

[-0, +0, -] 

const char *lua_typename  (lua_State *L, int tp);

Returns the name of the type encoded by the value tp, which must be one the values returned by lua_type.

lua_Writer

typedef int (*lua_Writer) (lua_State *L,
                           const void* p,
                           size_t sz,
                           void* ud);

The type of the writer function used by lua_dump. Every time it produces another piece of chunk, lua_dump calls the writer, passing along the buffer to be written (p), its size (sz), and the data parameter supplied to lua_dump.

The writer returns an error code: 0 means no errors; any other value means an error and stops lua_dump from calling the writer again.

lua_xmove

[-?, +?, -] 

void lua_xmove (lua_State *from, lua_State *to, int n);

Exchange values between different threads of the same global state.

This function pops n values from the stack from, and pushes them onto the stack to.

lua_yield

[-?, +?, -] 

int lua_yield  (lua_State *L, int nresults);

Yields a coroutine.

This function should only be called as the return expression of a C function, as follows: 

     return lua_yield (L, nresults);

When a C function calls lua_yield in that way, the running coroutine suspends its execution, and the call to lua_resume that started this coroutine returns. The parameter nresults is the number of values from the stack that are passed as results to lua_resume.

3.8 - The Debug Interface

Lua has no built-in debugging facilities. Instead, it offers a special interface by means of functions and hooks. This interface allows the construction of different kinds of debuggers, profilers, and other tools that need "inside information" from the interpreter.

lua_Debug

typedef struct lua_Debug {
  int event;
  const char *name;           /* (n) */
  const char *namewhat;       /* (n) */
  const char *what;           /* (S) */
  const char *source;         /* (S) */
  int currentline;            /* (l) */
  int nups;                   /* (u) number of upvalues */
  int linedefined;            /* (S) */
  int lastlinedefined;        /* (S) */
  char short_src[LUA_IDSIZE]; /* (S) */
  /* private part */
  other fields
} lua_Debug;

A structure used to carry different pieces of information about an active function. lua_getstack fills only the private part of this structure, for later use. To fill the other fields of lua_Debug with useful information, call lua_getinfo.

The fields of lua_Debug have the following meaning:

  • source: If the function was defined in a string, then source is that string. If the function was defined in a file, then source starts with a '@' followed by the file name.
  • short_src: a "printable" version of source, to be used in error messages.
  • linedefined: the line number where the definition of the function starts.
  • lastlinedefined: the line number where the definition of the function ends.
  • what: the string "Lua" if the function is a Lua function, "C" if it is a C function, "main" if it is the main part of a chunk, and "tail" if it was a function that did a tail call. In the latter case, Lua has no other information about the function.
  • currentline: the current line where the given function is executing. When no line information is available, currentline is set to -1.
  • name: a reasonable name for the given function. Because functions in Lua are first-class values, they do not have a fixed name: some functions can be the value of multiple global variables, while others can be stored only in a table field. The lua_getinfo function checks how the function was called to find a suitable name. If it cannot find a name, then name is set to NULL.
  • namewhat: explains the name field. The value of namewhat can be "global", "local", "method", "field", "upvalue", or "" (the empty string), according to how the function was called. (Lua uses the empty string when no other option seems to apply.)
  • nups: the number of upvalues of the function.

lua_gethook

[-0, +0, -] 

lua_Hook lua_gethook (lua_State *L);

Returns the current hook function.

lua_gethookcount

[-0, +0, -] 

int lua_gethookcount (lua_State *L);

Returns the current hook count.

lua_gethookmask

[-0, +0, -] 

int lua_gethookmask (lua_State *L);

Returns the current hook mask.

lua_getinfo

[-(0|1), +(0|1|2), m] 

int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);

Returns information about a specific function or function invocation.

To get information about a function invocation, the parameter ar must be a valid activation record that was filled by a previous call to lua_getstack or given as argument to a hook (see lua_Hook).

To get information about a function you push it onto the stack and start the what string with the character '>'. (In that case, lua_getinfo pops the function in the top of the stack.) For instance, to know in which line a function f was defined, you can write the following code: 

     lua_Debug ar;
     lua_getfield(L, LUA_GLOBALSINDEX, "f");  /* get global 'f' */
     lua_getinfo(L, ">S", &ar);
     printf("%d\n", ar.linedefined);

Each character in the string what selects some fields of the structure ar to be filled or a value to be pushed on the stack:

  • 'n': fills in the field name and namewhat;
  • 'S': fills in the fields source, short_src, linedefined, lastlinedefined, and what;
  • 'l': fills in the field currentline;
  • 'u': fills in the field nups;
  • 'f': pushes onto the stack the function that is running at the given level;
  • 'L': pushes onto the stack a table whose indices are the numbers of the lines that are valid on the function. (A valid line is a line with some associated code, that is, a line where you can put a break point. Non-valid lines include empty lines and comments.)

This function returns 0 on error (for instance, an invalid option in what).

lua_getlocal

[-0, +(0|1), -] 

const char *lua_getlocal (lua_State *L, lua_Debug *ar, int n);

Gets information about a local variable of a given activation record. The parameter ar must be a valid activation record that was filled by a previous call to lua_getstack or given as argument to a hook (see lua_Hook). The index n selects which local variable to inspect (1 is the first parameter or active local variable, and so on, until the last active local variable). lua_getlocal pushes the variable's value onto the stack and returns its name.

Variable names starting with '(' (open parentheses) represent internal variables (loop control variables, temporaries, and C function locals).

Returns NULL (and pushes nothing) when the index is greater than the number of active local variables.

lua_getstack

[-0, +0, -] 

int lua_getstack (lua_State *L, int level, lua_Debug *ar);

Get information about the interpreter runtime stack.

This function fills parts of a lua_Debug structure with an identification of the activation record of the function executing at a given level. Level 0 is the current running function, whereas level n+1 is the function that has called level n. When there are no errors, lua_getstack returns 1; when called with a level greater than the stack depth, it returns 0.

lua_getupvalue

[-0, +(0|1), -] 

const char *lua_getupvalue (lua_State *L, int funcindex, int n);

Gets information about a closure's upvalue. (For Lua functions, upvalues are the external local variables that the function uses, and that are consequently included in its closure.) lua_getupvalue gets the index n of an upvalue, pushes the upvalue's value onto the stack, and returns its name. funcindex points to the closure in the stack. (Upvalues have no particular order, as they are active through the whole function. So, they are numbered in an arbitrary order.)

Returns NULL (and pushes nothing) when the index is greater than the number of upvalues. For C functions, this function uses the empty string "" as a name for all upvalues.

lua_Hook

typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);

Type for debugging hook functions.

Whenever a hook is called, its ar argument has its field event set to the specific event that triggered the hook. Lua identifies these events with the following constants: LUA_HOOKCALL, LUA_HOOKRET, LUA_HOOKTAILRET, LUA_HOOKLINE, and LUA_HOOKCOUNT. Moreover, for line events, the field currentline is also set. To get the value of any other field in ar, the hook must call lua_getinfo. For return events, event can be LUA_HOOKRET, the normal value, or LUA_HOOKTAILRET. In the latter case, Lua is simulating a return from a function that did a tail call; in this case, it is useless to call lua_getinfo.

While Lua is running a hook, it disables other calls to hooks. Therefore, if a hook calls back Lua to execute a function or a chunk, this execution occurs without any calls to hooks.

lua_sethook

[-0, +0, -] 

int lua_sethook (lua_State *L, lua_Hook f, int mask, int count);

Sets the debugging hook function.

Argument f is the hook function. mask specifies on which events the hook will be called: it is formed by a bitwise or of the constants LUA_MASKCALL, LUA_MASKRET, LUA_MASKLINE, and LUA_MASKCOUNT. The count argument is only meaningful when the mask includes LUA_MASKCOUNT. For each event, the hook is called as explained below:

  • The call hook: is called when the interpreter calls a function. The hook is called just after Lua enters the new function, before the function gets its arguments.
  • The return hook: is called when the interpreter returns from a function. The hook is called just before Lua leaves the function. You have no access to the values to be returned by the function.
  • The line hook: is called when the interpreter is about to start the execution of a new line of code, or when it jumps back in the code (even to the same line). (This event only happens while Lua is executing a Lua function.)
  • The count hook: is called after the interpreter executes every count instructions. (This event only happens while Lua is executing a Lua function.)

A hook is disabled by setting mask to zero.

lua_setlocal

[-(0|1), +0, -] 

const char *lua_setlocal (lua_State *L, lua_Debug *ar, int n);

Sets the value of a local variable of a given activation record. Parameters ar and n are as in lua_getlocal (see lua_getlocal). lua_setlocal assigns the value at the top of the stack to the variable and returns its name. It also pops the value from the stack.

Returns NULL (and pops nothing) when the index is greater than the number of active local variables.

lua_setupvalue

[-(0|1), +0, -] 

const char *lua_setupvalue (lua_State *L, int funcindex, int n);

Sets the value of a closure's upvalue. It assigns the value at the top of the stack to the upvalue and returns its name. It also pops the value from the stack. Parameters funcindex and n are as in the lua_getupvalue (see lua_getupvalue).

Returns NULL (and pops nothing) when the index is greater than the number of upvalues.

4 - The Auxiliary Library

The auxiliary library provides several convenient functions to interface C with Lua. While the basic API provides the primitive functions for all interactions between C and Lua, the auxiliary library provides higher-level functions for some common tasks.

All functions from the auxiliary library are defined in header file lauxlib.h and have a prefix luaL_.

All functions in the auxiliary library are built on top of the basic API, and so they provide nothing that cannot be done with this API.

Several functions in the auxiliary library are used to check C function arguments. Their names are always luaL_check* or luaL_opt*. All of these functions throw an error if the check is not satisfied. Because the error message is formatted for arguments (e.g., "bad argument #1"), you should not use these functions for other stack values.

4.1 - Functions and Types

Here we list all functions and types from the auxiliary library in alphabetical order.

luaL_addchar

[-0, +0, m] 

void luaL_addchar (luaL_Buffer *B, char c);

Adds the character c to the buffer B (see luaL_Buffer).

luaL_addlstring

[-0, +0, m] 

void luaL_addlstring (luaL_Buffer *B, const char *s, size_t l);

Adds the string pointed to by s with length l to the buffer B (see luaL_Buffer). The string may contain embedded zeros.

luaL_addsize

[-0, +0, m] 

void luaL_addsize (luaL_Buffer *B, size_t n);

Adds to the buffer B (see luaL_Buffer) a string of length n previously copied to the buffer area (see luaL_prepbuffer).

luaL_addstring

[-0, +0, m] 

void luaL_addstring (luaL_Buffer *B, const char *s);

Adds the zero-terminated string pointed to by s to the buffer B (see luaL_Buffer). The string may not contain embedded zeros.

luaL_addvalue

[-1, +0, m] 

void luaL_addvalue (luaL_Buffer *B);

Adds the value at the top of the stack to the buffer B (see luaL_Buffer). Pops the value.

This is the only function on string buffers that can (and must) be called with an extra element on the stack, which is the value to be added to the buffer.

luaL_argcheck

[-0, +0, v] 

void luaL_argcheck (lua_State *L,
                    int cond,
                    int narg,
                    const char *extramsg);

Checks whether cond is true. If not, raises an error with the following message, where func is retrieved from the call stack: 

     bad argument #<narg> to <func> (<extramsg>)

luaL_argerror

[-0, +0, v] 

int luaL_argerror (lua_State *L, int narg, const char *extramsg);

Raises an error with the following message, where func is retrieved from the call stack: 

     bad argument #<narg> to <func> (<extramsg>)

This function never returns, but it is an idiom to use it in C functions as return luaL_argerror(args).

luaL_Buffer

typedef struct luaL_Buffer luaL_Buffer;

Type for a string buffer.

A string buffer allows C code to build Lua strings piecemeal. Its pattern of use is as follows:

  • First you declare a variable b of type luaL_Buffer.
  • Then you initialize it with a call luaL_buffinit(L, &b).
  • Then you add string pieces to the buffer calling any of the luaL_add* functions.
  • You finish by calling luaL_pushresult(&b). This call leaves the final string on the top of the stack.

During its normal operation, a string buffer uses a variable number of stack slots. So, while using a buffer, you cannot assume that you know where the top of the stack is. You can use the stack between successive calls to buffer operations as long as that use is balanced; that is, when you call a buffer operation, the stack is at the same level it was immediately after the previous buffer operation. (The only exception to this rule is luaL_addvalue.) After calling luaL_pushresult the stack is back to its level when the buffer was initialized, plus the final string on its top.

luaL_buffinit

[-0, +0, -] 

void luaL_buffinit (lua_State *L, luaL_Buffer *B);

Initializes a buffer B. This function does not allocate any space; the buffer must be declared as a variable (see luaL_Buffer).

luaL_callmeta

[-0, +(0|1), e] 

int luaL_callmeta (lua_State *L, int obj, const char *e);

Calls a metamethod.

If the object at index obj has a metatable and this metatable has a field e, this function calls this field and passes the object as its only argument. In this case this function returns 1 and pushes onto the stack the value returned by the call. If there is no metatable or no metamethod, this function returns 0 (without pushing any value on the stack).

luaL_checkany

[-0, +0, v] 

void luaL_checkany (lua_State *L, int narg);

Checks whether the function has an argument of any type (including nil) at position narg.

luaL_checkint

[-0, +0, v] 

int luaL_checkint (lua_State *L, int narg);

Checks whether the function argument narg is a number and returns this number cast to an int.

luaL_checkinteger

[-0, +0, v] 

lua_Integer luaL_checkinteger (lua_State *L, int narg);

Checks whether the function argument narg is a number and returns this number cast to a lua_Integer.

luaL_checklong

[-0, +0, v] 

long luaL_checklong (lua_State *L, int narg);

Checks whether the function argument narg is a number and returns this number cast to a long.

luaL_checklstring

[-0, +0, v] 

const char *luaL_checklstring (lua_State *L, int narg, size_t *l);

Checks whether the function argument narg is a string and returns this string; if l is not NULL fills *l with the string's length.

This function uses lua_tolstring to get its result, so all conversions and caveats of that function apply here.

luaL_checknumber

[-0, +0, v] 

lua_Number luaL_checknumber (lua_State *L, int narg);

Checks whether the function argument narg is a number and returns this number.

luaL_checkoption

[-0, +0, v] 

int luaL_checkoption (lua_State *L,
                      int narg,
                      const char *def,
                      const char *const lst[]);

Checks whether the function argument narg is a string and searches for this string in the array lst (which must be NULL-terminated). Returns the index in the array where the string was found. Raises an error if the argument is not a string or if the string cannot be found.

If def is not NULL, the function uses def as a default value when there is no argument narg or if this argument is nil.

This is a useful function for mapping strings to C enums. (The usual convention in Lua libraries is to use strings instead of numbers to select options.)

luaL_checkstack

[-0, +0, v] 

void luaL_checkstack (lua_State *L, int sz, const char *msg);

Grows the stack size to top + sz elements, raising an error if the stack cannot grow to that size. msg is an additional text to go into the error message.

luaL_checkstring

[-0, +0, v] 

const char *luaL_checkstring (lua_State *L, int narg);

Checks whether the function argument narg is a string and returns this string.

This function uses lua_tolstring to get its result, so all conversions and caveats of that function apply here.

luaL_checktype

[-0, +0, v] 

void luaL_checktype (lua_State *L, int narg, int t);

Checks whether the function argument narg has type t. See lua_type for the encoding of types for t.

luaL_checkudata

[-0, +0, v] 

void *luaL_checkudata (lua_State *L, int narg, const char *tname);

Checks whether the function argument narg is a userdata of the type tname (see luaL_newmetatable).

luaL_dofile

[-0, +?, m] 

int luaL_dofile (lua_State *L, const char *filename);

Loads and runs the given file. It is defined as the following macro: 

     (luaL_loadfile(L, filename) || lua_pcall(L, 0, LUA_MULTRET, 0))

It returns 0 if there are no errors or 1 in case of errors.

luaL_dostring

[-0, +?, m] 

int luaL_dostring (lua_State *L, const char *str);

Loads and runs the given string. It is defined as the following macro: 

     (luaL_loadstring(L, str) || lua_pcall(L, 0, LUA_MULTRET, 0))

It returns 0 if there are no errors or 1 in case of errors.

luaL_error

[-0, +0, v] 

int luaL_error (lua_State *L, const char *fmt, ...);

Raises an error. The error message format is given by fmt plus any extra arguments, following the same rules of lua_pushfstring. It also adds at the beginning of the message the file name and the line number where the error occurred, if this information is available.

This function never returns, but it is an idiom to use it in C functions as return luaL_error(args).

luaL_getmetafield

[-0, +(0|1), m] 

int luaL_getmetafield (lua_State *L, int obj, const char *e);

Pushes onto the stack the field e from the metatable of the object at index obj. If the object does not have a metatable, or if the metatable does not have this field, returns 0 and pushes nothing.

luaL_getmetatable

[-0, +1, -] 

void luaL_getmetatable (lua_State *L, const char *tname);

Pushes onto the stack the metatable associated with name tname in the registry (see luaL_newmetatable).

luaL_gsub

[-0, +1, m] 

const char *luaL_gsub (lua_State *L,
                       const char *s,
                       const char *p,
                       const char *r);

Creates a copy of string s by replacing any occurrence of the string p with the string r. Pushes the resulting string on the stack and returns it.

luaL_loadbuffer

[-0, +1, m] 

int luaL_loadbuffer (lua_State *L,
                     const char *buff,
                     size_t sz,
                     const char *name);

Loads a buffer as a Lua chunk. This function uses lua_load to load the chunk in the buffer pointed to by buff with size sz.

This function returns the same results as lua_load. name is the chunk name, used for debug information and error messages.

luaL_loadfile

[-0, +1, m] 

int luaL_loadfile (lua_State *L, const char *filename);

Loads a file as a Lua chunk. This function uses lua_load to load the chunk in the file named filename. If filename is NULL, then it loads from the standard input. The first line in the file is ignored if it starts with a #.

This function returns the same results as lua_load, but it has an extra error code LUA_ERRFILE if it cannot open/read the file.

As lua_load, this function only loads the chunk; it does not run it.

luaL_loadstring

[-0, +1, m] 

int luaL_loadstring (lua_State *L, const char *s);

Loads a string as a Lua chunk. This function uses lua_load to load the chunk in the zero-terminated string s.

This function returns the same results as lua_load.

Also as lua_load, this function only loads the chunk; it does not run it.

luaL_newmetatable

[-0, +1, m] 

int luaL_newmetatable (lua_State *L, const char *tname);

If the registry already has the key tname, returns 0. Otherwise, creates a new table to be used as a metatable for userdata, adds it to the registry with key tname, and returns 1.

In both cases pushes onto the stack the final value associated with tname in the registry.

luaL_newstate

[-0, +0, -] 

lua_State *luaL_newstate (void);

Creates a new Lua state. It calls lua_newstate with an allocator based on the standard C realloc function and then sets a panic function (see lua_atpanic) that prints an error message to the standard error output in case of fatal errors.

Returns the new state, or NULL if there is a memory allocation error.

luaL_openlibs

[-0, +0, m] 

void luaL_openlibs (lua_State *L);

Opens all standard Lua libraries into the given state.

luaL_optint

[-0, +0, v] 

int luaL_optint (lua_State *L, int narg, int d);

If the function argument narg is a number, returns this number cast to an int. If this argument is absent or is nil, returns d. Otherwise, raises an error.

luaL_optinteger

[-0, +0, v] 

lua_Integer luaL_optinteger (lua_State *L,
                             int narg,
                             lua_Integer d);

If the function argument narg is a number, returns this number cast to a lua_Integer. If this argument is absent or is nil, returns d. Otherwise, raises an error.

luaL_optlong

[-0, +0, v] 

long luaL_optlong (lua_State *L, int narg, long d);

If the function argument narg is a number, returns this number cast to a long. If this argument is absent or is nil, returns d. Otherwise, raises an error.

luaL_optlstring

[-0, +0, v] 

const char *luaL_optlstring (lua_State *L,
                             int narg,
                             const char *d,
                             size_t *l);

If the function argument narg is a string, returns this string. If this argument is absent or is nil, returns d. Otherwise, raises an error.

If l is not NULL, fills the position *l with the results's length.

luaL_optnumber

[-0, +0, v] 

lua_Number luaL_optnumber (lua_State *L, int narg, lua_Number d);

If the function argument narg is a number, returns this number. If this argument is absent or is nil, returns d. Otherwise, raises an error.

luaL_optstring

[-0, +0, v] 

const char *luaL_optstring (lua_State *L,
                            int narg,
                            const char *d);

If the function argument narg is a string, returns this string. If this argument is absent or is nil, returns d. Otherwise, raises an error.

luaL_prepbuffer

[-0, +0, -] 

char *luaL_prepbuffer (luaL_Buffer *B);

Returns an address to a space of size LUAL_BUFFERSIZE where you can copy a string to be added to buffer B (see luaL_Buffer). After copying the string into this space you must call luaL_addsize with the size of the string to actually add it to the buffer.

luaL_pushresult

[-?, +1, m] 

void luaL_pushresult (luaL_Buffer *B);

Finishes the use of buffer B leaving the final string on the top of the stack.

luaL_ref

[-1, +0, m] 

int luaL_ref (lua_State *L, int t);

Creates and returns a reference, in the table at index t, for the object at the top of the stack (and pops the object).

A reference is a unique integer key. As long as you do not manually add integer keys into table t, luaL_ref ensures the uniqueness of the key it returns. You can retrieve an object referred by reference r by calling lua_rawgeti(L, t, r). Function luaL_unref frees a reference and its associated object.

If the object at the top of the stack is nil, luaL_ref returns the constant LUA_REFNIL. The constant LUA_NOREF is guaranteed to be different from any reference returned by luaL_ref.

luaL_Reg

typedef struct luaL_Reg {
  const char *name;
  lua_CFunction func;
} luaL_Reg;

Type for arrays of functions to be registered by luaL_register. name is the function name and func is a pointer to the function. Any array of luaL_Reg must end with an sentinel entry in which both name and func are NULL.

luaL_register

[-(0|1), +1, m] 

void luaL_register (lua_State *L,
                    const char *libname,
                    const luaL_Reg *l);

Opens a library.

When called with libname equal to NULL, it simply registers all functions in the list l (see luaL_Reg) into the table on the top of the stack.

When called with a non-null libname, luaL_register creates a new table t, sets it as the value of the global variable libname, sets it as the value of package.loaded[libname], and registers on it all functions in the list l. If there is a table in package.loaded[libname] or in variable libname, reuses this table instead of creating a new one.

In any case the function leaves the table on the top of the stack.

luaL_typename

[-0, +0, -] 

const char *luaL_typename (lua_State *L, int index);

Returns the name of the type of the value at the given index.

luaL_typerror

[-0, +0, v] 

int luaL_typerror (lua_State *L, int narg, const char *tname);

Generates an error with a message like the following: 

     location: bad argument narg to 'func' (tname expected, got rt)

where location is produced by luaL_where, func is the name of the current function, and rt is the type name of the actual argument.

luaL_unref

[-0, +0, -] 

void luaL_unref (lua_State *L, int t, int ref);

Releases reference ref from the table at index t (see luaL_ref). The entry is removed from the table, so that the referred object can be collected. The reference ref is also freed to be used again.

If ref is LUA_NOREF or LUA_REFNIL, luaL_unref does nothing.

luaL_where

[-0, +1, m] 

void luaL_where (lua_State *L, int lvl);

Pushes onto the stack a string identifying the current position of the control at level lvl in the call stack. Typically this string has the following format: 

     chunkname:currentline:

Level 0 is the running function, level 1 is the function that called the running function, etc.

This function is used to build a prefix for error messages.

5 - Standard Libraries

The standard Lua libraries provide useful functions that are implemented directly through the C API. Some of these functions provide essential services to the language (e.g., type and getmetatable); others provide access to "outside" services (e.g., I/O); and others could be implemented in Lua itself, but are quite useful or have critical performance requirements that deserve an implementation in C (e.g., table.sort).

All libraries are implemented through the official C API and are provided as separate C modules. Currently, Lua has the following standard libraries:

  • basic library, which includes the coroutine sub-library;
  • package library;
  • string manipulation;
  • table manipulation;
  • mathematical functions (sin, log, etc.);
  • input and output;
  • operating system facilities;
  • debug facilities.

Except for the basic and package libraries, each library provides all its functions as fields of a global table or as methods of its objects.

To have access to these libraries, the C host program should call the luaL_openlibs function, which opens all standard libraries. Alternatively, it can open them individually by calling luaopen_base (for the basic library), luaopen_package (for the package library), luaopen_string (for the string library), luaopen_table (for the table library), luaopen_math (for the mathematical library), luaopen_io (for the I/O library), luaopen_os (for the Operating System library), and luaopen_debug (for the debug library). These functions are declared in lualib.h and should not be called directly: you must call them like any other Lua C function, e.g., by using lua_call.

5.1 - Basic Functions

The basic library provides some core functions to Lua. If you do not include this library in your application, you should check carefully whether you need to provide implementations for some of its facilities.

assert (v [, message])

Issues an error when the value of its argument v is false (i.e., nil or false); otherwise, returns all its arguments. message is an error message; when absent, it defaults to "assertion failed!"

collectgarbage ([opt [, arg]])

This function is a generic interface to the garbage collector. It performs different functions according to its first argument, opt:

  • "collect": performs a full garbage-collection cycle. This is the default option.
  • "stop": stops the garbage collector.
  • "restart": restarts the garbage collector.
  • "count": returns the total memory in use by Lua (in Kbytes).
  • "step": performs a garbage-collection step. The step "size" is controlled by arg (larger values mean more steps) in a non-specified way. If you want to control the step size you must experimentally tune the value of arg. Returns true if the step finished a collection cycle.
  • "setpause": sets arg as the new value for the pause of the collector (see §2.10). Returns the previous value for pause.
  • "setstepmul": sets arg as the new value for the step multiplier of the collector (see §2.10). Returns the previous value for step.

dofile ([filename])

Opens the named file and executes its contents as a Lua chunk. When called without arguments, dofile executes the contents of the standard input (stdin). Returns all values returned by the chunk. In case of errors, dofile propagates the error to its caller (that is, dofile does not run in protected mode).

error (message [, level])

Terminates the last protected function called and returns message as the error message. Function error never returns.

Usually, error adds some information about the error position at the beginning of the message. The level argument specifies how to get the error position. With level 1 (the default), the error position is where the error function was called. Level 2 points the error to where the function that called error was called; and so on. Passing a level 0 avoids the addition of error position information to the message.

_G

A global variable (not a function) that holds the global environment (that is, _G._G = _G). Lua itself does not use this variable; changing its value does not affect any environment, nor vice-versa. (Use setfenv to change environments.)

getfenv ([f])

Returns the current environment in use by the function. f can be a Lua function or a number that specifies the function at that stack level: Level 1 is the function calling getfenv. If the given function is not a Lua function, or if f is 0, getfenv returns the global environment. The default for f is 1.

getmetatable (object)

If object does not have a metatable, returns nil. Otherwise, if the object's metatable has a "__metatable" field, returns the associated value. Otherwise, returns the metatable of the given object.

ipairs (t)

Returns three values: an iterator function, the table t, and 0, so that the construction 

     for i,v in ipairs(t) do body end

will iterate over the pairs (1,t[1]), (2,t[2]), ···, up to the first integer key absent from the table.

load (func [, chunkname])

Loads a chunk using function func to get its pieces. Each call to func must return a string that concatenates with previous results. A return of an empty string, nil, or no value signals the end of the chunk.

If there are no errors, returns the compiled chunk as a function; otherwise, returns nil plus the error message. The environment of the returned function is the global environment.

chunkname is used as the chunk name for error messages and debug information. When absent, it defaults to "=(load)".

loadfile ([filename])

Similar to load, but gets the chunk from file filename or from the standard input, if no file name is given.

loadstring (string [, chunkname])

Similar to load, but gets the chunk from the given string.

To load and run a given string, use the idiom 

     assert(loadstring(s))()

When absent, chunkname defaults to the given string.

next (table [, index])

Allows a program to traverse all fields of a table. Its first argument is a table and its second argument is an index in this table. next returns the next index of the table and its associated value. When called with nil as its second argument, next returns an initial index and its associated value. When called with the last index, or with nil in an empty table, next returns nil. If the second argument is absent, then it is interpreted as nil. In particular, you can use next(t) to check whether a table is empty.

The order in which the indices are enumerated is not specified, even for numeric indices. (To traverse a table in numeric order, use a numerical for or the ipairs function.)

The behavior of next is undefined if, during the traversal, you assign any value to a non-existent field in the table. You may however modify existing fields. In particular, you may clear existing fields.

pairs (t)

Returns three values: the next function, the table t, and nil, so that the construction 

     for k,v in pairs(t) do body end

will iterate over all key–value pairs of table t.

See function next for the caveats of modifying the table during its traversal.

pcall (f, arg1, ···)

Calls function f with the given arguments in protected mode. This means that any error inside f is not propagated; instead, pcall catches the error and returns a status code. Its first result is the status code (a boolean), which is true if the call succeeds without errors. In such case, pcall also returns all results from the call, after this first result. In case of any error, pcall returns false plus the error message.

print (···)

Receives any number of arguments, and prints their values to stdout, using the tostring function to convert them to strings. print is not intended for formatted output, but only as a quick way to show a value, typically for debugging. For formatted output, use string.format.

rawequal (v1, v2)

Checks whether v1 is equal to v2, without invoking any metamethod. Returns a boolean.

rawget (table, index)

Gets the real value of table[index], without invoking any metamethod. table must be a table; index may be any value.

rawset (table, index, value)

Sets the real value of table[index] to value, without invoking any metamethod. table must be a table, index any value different from nil, and value any Lua value.

This function returns table.

select (index, ···)

If index is a number, returns all arguments after argument number index. Otherwise, index must be the string "#", and select returns the total number of extra arguments it received.

setfenv (f, table)

Sets the environment to be used by the given function. f can be a Lua function or a number that specifies the function at that stack level: Level 1 is the function calling setfenv. setfenv returns the given function.

As a special case, when f is 0 setfenv changes the environment of the running thread. In this case, setfenv returns no values.

setmetatable (table, metatable)

Sets the metatable for the given table. (You cannot change the metatable of other types from Lua, only from C.) If metatable is nil, removes the metatable of the given table. If the original metatable has a "__metatable" field, raises an error.

This function returns table.

tonumber (e [, base])

Tries to convert its argument to a number. If the argument is already a number or a string convertible to a number, then tonumber returns this number; otherwise, it returns nil.

An optional argument specifies the base to interpret the numeral. The base may be any integer between 2 and 36, inclusive. In bases above 10, the letter 'A' (in either upper or lower case) represents 10, 'B' represents 11, and so forth, with 'Z' representing 35. In base 10 (the default), the number can have a decimal part, as well as an optional exponent part (see §2.1). In other bases, only unsigned integers are accepted.

tostring (e)

Receives an argument of any type and converts it to a string in a reasonable format. For complete control of how numbers are converted, use string.format.

If the metatable of e has a "__tostring" field, then tostring calls the corresponding value with e as argument, and uses the result of the call as its result.

type (v)

Returns the type of its only argument, coded as a string. The possible results of this function are "nil" (a string, not the value nil), "number", "string", "boolean", "table", "function", "thread", and "userdata".

unpack (list [, i [, j]])

Returns the elements from the given table. This function is equivalent to 
     return list[i], list[i+1], ···, list[j]

except that the above code can be written only for a fixed number of elements. By default, i is 1 and j is the length of the list, as defined by the length operator (see §2.5.5).

_VERSION

A global variable (not a function) that holds a string containing the current interpreter version. The current contents of this variable is "Lua 5.1".

xpcall (f, err)

This function is similar to pcall, except that you can set a new error handler.

xpcall calls function f in protected mode, using err as the error handler. Any error inside f is not propagated; instead, xpcall catches the error, calls the err function with the original error object, and returns a status code. Its first result is the status code (a boolean), which is true if the call succeeds without errors. In this case, xpcall also returns all results from the call, after this first result. In case of any error, xpcall returns false plus the result from err.

5.2 - Coroutine Manipulation

The operations related to coroutines comprise a sub-library of the basic library and come inside the table coroutine. See §2.11 for a general description of coroutines.

coroutine.create (f)

Creates a new coroutine, with body f. f must be a Lua function. Returns this new coroutine, an object with type "thread".

coroutine.resume (co [, val1, ···])

Starts or continues the execution of coroutine co. The first time you resume a coroutine, it starts running its body. The values val1, ··· are passed as the arguments to the body function. If the coroutine has yielded, resume restarts it; the values val1, ··· are passed as the results from the yield.

If the coroutine runs without any errors, resume returns true plus any values passed to yield (if the coroutine yields) or any values returned by the body function (if the coroutine terminates). If there is any error, resume returns false plus the error message.

coroutine.running ()

Returns the running coroutine, or nil when called by the main thread.

coroutine.status (co)

Returns the status of coroutine co, as a string: "running", if the coroutine is running (that is, it called status); "suspended", if the coroutine is suspended in a call to yield, or if it has not started running yet; "normal" if the coroutine is active but not running (that is, it has resumed another coroutine); and "dead" if the coroutine has finished its body function, or if it has stopped with an error.

coroutine.wrap (f)

Creates a new coroutine, with body f. f must be a Lua function. Returns a function that resumes the coroutine each time it is called. Any arguments passed to the function behave as the extra arguments to resume. Returns the same values returned by resume, except the first boolean. In case of error, propagates the error.

coroutine.yield (···)

Suspends the execution of the calling coroutine. The coroutine cannot be running a C function, a metamethod, or an iterator. Any arguments to yield are passed as extra results to resume.

5.3 - Modules

The package library provides basic facilities for loading and building modules in Lua. It exports two of its functions directly in the global environment: require and module. Everything else is exported in a table package.

module (name [, ···])

Creates a module. If there is a table in package.loaded[name], this table is the module. Otherwise, if there is a global table t with the given name, this table is the module. Otherwise creates a new table t and sets it as the value of the global name and the value of package.loaded[name]. This function also initializes t._NAME with the given name, t._M with the module (t itself), and t._PACKAGE with the package name (the full module name minus last component; see below). Finally, module sets t as the new environment of the current function and the new value of package.loaded[name], so that require returns t.

If name is a compound name (that is, one with components separated by dots), module creates (or reuses, if they already exist) tables for each component. For instance, if name is a.b.c, then module stores the module table in field c of field b of global a.

This function can receive optional options after the module name, where each option is a function to be applied over the module.

require (modname)

Loads the given module. The function starts by looking into the package.loaded table to determine whether modname is already loaded. If it is, then require returns the value stored at package.loaded[modname]. Otherwise, it tries to find a loader for the module.

To find a loader, require is guided by the package.loaders array. By changing this array, we can change how require looks for a module. The following explanation is based on the default configuration for package.loaders.

First require queries package.preload[modname]. If it has a value, this value (which should be a function) is the loader. Otherwise require searches for a Lua loader using the path stored in package.path. If that also fails, it searches for a C loader using the path stored in package.cpath. If that also fails, it tries an all-in-one loader (see package.loaders).

Once a loader is found, require calls the loader with a single argument, modname. If the loader returns any value, require assigns the returned value to package.loaded[modname]. If the loader returns no value and has not assigned any value to package.loaded[modname], then require assigns true to this entry. In any case, require returns the final value of package.loaded[modname].

If there is any error loading or running the module, or if it cannot find any loader for the module, then require signals an error.

package.cpath

The path used by require to search for a C loader.

Lua initializes the C path package.cpath in the same way it initializes the Lua path package.path, using the environment variable LUA_CPATH or a default path defined in luaconf.h.

package.loaded

A table used by require to control which modules are already loaded. When you require a module modname and package.loaded[modname] is not false, require simply returns the value stored there.

package.loaders

A table used by require to control how to load modules.

Each entry in this table is a searcher function. When looking for a module, require calls each of these searchers in ascending order, with the module name (the argument given to require) as its sole parameter. The function can return another function (the module loader) or a string explaining why it did not find that module (or nil if it has nothing to say). Lua initializes this table with four functions.

The first searcher simply looks for a loader in the package.preload table.

The second searcher looks for a loader as a Lua library, using the path stored at package.path. A path is a sequence of templates separated by semicolons. For each template, the searcher will change each interrogation mark in the template by filename, which is the module name with each dot replaced by a "directory separator" (such as "/" in Unix); then it will try to open the resulting file name. So, for instance, if the Lua path is the string 

     "./?.lua;./?.lc;/usr/local/?/init.lua"

the search for a Lua file for module foo will try to open the files ./foo.lua, ./foo.lc, and /usr/local/foo/init.lua, in that order.

The third searcher looks for a loader as a C library, using the path given by the variable package.cpath. For instance, if the C path is the string 

     "./?.so;./?.dll;/usr/local/?/init.so"

the searcher for module foo will try to open the files ./foo.so, ./foo.dll, and /usr/local/foo/init.so, in that order. Once it finds a C library, this searcher first uses a dynamic link facility to link the application with the library. Then it tries to find a C function inside the library to be used as the loader. The name of this C function is the string "luaopen_" concatenated with a copy of the module name where each dot is replaced by an underscore. Moreover, if the module name has a hyphen, its prefix up to (and including) the first hyphen is removed. For instance, if the module name is a.v1-b.c, the function name will be luaopen_b_c.

The fourth searcher tries an all-in-one loader. It searches the C path for a library for the root name of the given module. For instance, when requiring a.b.c, it will search for a C library for a. If found, it looks into it for an open function for the submodule; in our example, that would be luaopen_a_b_c. With this facility, a package can pack several C submodules into one single library, with each submodule keeping its original open function.

package.loadlib (libname, funcname)

Dynamically links the host program with the C library libname. Inside this library, looks for a function funcname and returns this function as a C function. (So, funcname must follow the protocol (see lua_CFunction)).

This is a low-level function. It completely bypasses the package and module system. Unlike require, it does not perform any path searching and does not automatically adds extensions. libname must be the complete file name of the C library, including if necessary a path and extension. funcname must be the exact name exported by the C library (which may depend on the C compiler and linker used).

This function is not supported by ANSI C. As such, it is only available on some platforms (Windows, Linux, Mac OS X, Solaris, BSD, plus other Unix systems that support the dlfcn standard).

package.path

The path used by require to search for a Lua loader.

At start-up, Lua initializes this variable with the value of the environment variable LUA_PATH or with a default path defined in luaconf.h, if the environment variable is not defined. Any ";;" in the value of the environment variable is replaced by the default path.

package.preload

A table to store loaders for specific modules (see require).

package.seeall (module)

Sets a metatable for module with its __index field referring to the global environment, so that this module inherits values from the global environment. To be used as an option to function module.

5.4 - String Manipulation

This library provides generic functions for string manipulation, such as finding and extracting substrings, and pattern matching. When indexing a string in Lua, the first character is at position 1 (not at 0, as in C). Indices are allowed to be negative and are interpreted as indexing backwards, from the end of the string. Thus, the last character is at position -1, and so on.

The string library provides all its functions inside the table string. It also sets a metatable for strings where the __index field points to the string table. Therefore, you can use the string functions in object-oriented style. For instance, string.byte(s, i) can be written as s:byte(i).

The string library assumes one-byte character encodings.

string.byte (s [, i [, j]])

Returns the internal numerical codes of the characters s[i], s[i+1], ···, s[j]. The default value for i is 1; the default value for j is i.

Note that numerical codes are not necessarily portable across platforms.

string.char (···)

Receives zero or more integers. Returns a string with length equal to the number of arguments, in which each character has the internal numerical code equal to its corresponding argument.

Note that numerical codes are not necessarily portable across platforms.

string.dump (function)

Returns a string containing a binary representation of the given function, so that a later loadstring on this string returns a copy of the function. function must be a Lua function without upvalues.

string.find (s, pattern [, init [, plain]])

Looks for the first match of pattern in the string s. If it finds a match, then find returns the indices of s where this occurrence starts and ends; otherwise, it returns nil. A third, optional numerical argument init specifies where to start the search; its default value is 1 and can be negative. A value of true as a fourth, optional argument plain turns off the pattern matching facilities, so the function does a plain "find substring" operation, with no characters in pattern being considered "magic". Note that if plain is given, then init must be given as well.

If the pattern has captures, then in a successful match the captured values are also returned, after the two indices.

string.format (formatstring, ···)

Returns a formatted version of its variable number of arguments following the description given in its first argument (which must be a string). The format string follows the same rules as the printf family of standard C functions. The only differences are that the options/modifiers *, l, L, n, p, and h are not supported and that there is an extra option, q. The q option formats a string in a form suitable to be safely read back by the Lua interpreter: the string is written between double quotes, and all double quotes, newlines, embedded zeros, and backslashes in the string are correctly escaped when written. For instance, the call 
     string.format('%q', 'a string with "quotes" and \n new line')

will produce the string: 

     "a string with \"quotes\" and \
      new line"

The options c, d, E, e, f, g, G, i, o, u, X, and x all expect a number as argument, whereas q and s expect a string.

This function does not accept string values containing embedded zeros, except as arguments to the q option.

string.gmatch (s, pattern)

Returns an iterator function that, each time it is called, returns the next captures from pattern over string s. If pattern specifies no captures, then the whole match is produced in each call.

As an example, the following loop 

     s = "hello world from Lua"
     for w in string.gmatch(s, "%a+") do
       print(w)
     end

will iterate over all the words from string s, printing one per line. The next example collects all pairs key=value from the given string into a table: 

     t = {}
     s = "from=world, to=Lua"
     for k, v in string.gmatch(s, "(%w+)=(%w+)") do
       t[k] = v
     end

For this function, a '^' at the start of a pattern does not work as an anchor, as this would prevent the iteration.

string.gsub (s, pattern, repl [, n])

Returns a copy of s in which all (or the first n, if given) occurrences of the pattern have been replaced by a replacement string specified by repl, which can be a string, a table, or a function. gsub also returns, as its second value, the total number of matches that occurred.

If repl is a string, then its value is used for replacement. The character % works as an escape character: any sequence in repl of the form %n, with n between 1 and 9, stands for the value of the n-th captured substring (see below). The sequence %0 stands for the whole match. The sequence %% stands for a single %.

If repl is a table, then the table is queried for every match, using the first capture as the key; if the pattern specifies no captures, then the whole match is used as the key.

If repl is a function, then this function is called every time a match occurs, with all captured substrings passed as arguments, in order; if the pattern specifies no captures, then the whole match is passed as a sole argument.

If the value returned by the table query or by the function call is a string or a number, then it is used as the replacement string; otherwise, if it is false or nil, then there is no replacement (that is, the original match is kept in the string).

Here are some examples: 

     x = string.gsub("hello world", "(%w+)", "%1 %1")
     --> x="hello hello world world"
     
     x = string.gsub("hello world", "%w+", "%0 %0", 1)
     --> x="hello hello world"
     
     x = string.gsub("hello world from Lua", "(%w+)%s*(%w+)", "%2 %1")
     --> x="world hello Lua from"
     
     x = string.gsub("home = $HOME, user = $USER", "%$(%w+)", os.getenv)
     --> x="home = /home/roberto, user = roberto"
     
     x = string.gsub("4+5 = $return 4+5$", "%$(.-)%$", function (s)
           return loadstring(s)()
         end)
     --> x="4+5 = 9"
     
     local t = {name="lua", version="5.1"}
     x = string.gsub("$name-$version.tar.gz", "%$(%w+)", t)
     --> x="lua-5.1.tar.gz"

string.len (s)

Receives a string and returns its length. The empty string "" has length 0. Embedded zeros are counted, so "a\000bc\000" has length 5.

string.lower (s)

Receives a string and returns a copy of this string with all uppercase letters changed to lowercase. All other characters are left unchanged. The definition of what an uppercase letter is depends on the current locale.

string.match (s, pattern [, init])

Looks for the first match of pattern in the string s. If it finds one, then match returns the captures from the pattern; otherwise it returns nil. If pattern specifies no captures, then the whole match is returned. A third, optional numerical argument init specifies where to start the search; its default value is 1 and can be negative.

string.rep (s, n)

Returns a string that is the concatenation of n copies of the string s.

string.reverse (s)

Returns a string that is the string s reversed.

string.sub (s, i [, j])

Returns the substring of s that starts at i and continues until j; i and j can be negative. If j is absent, then it is assumed to be equal to -1 (which is the same as the string length). In particular, the call string.sub(s,1,j) returns a prefix of s with length j, and string.sub(s, -i) returns a suffix of s with length i.

string.upper (s)

Receives a string and returns a copy of this string with all lowercase letters changed to uppercase. All other characters are left unchanged. The definition of what a lowercase letter is depends on the current locale.

5.4.1 - Patterns

Character Class:

A character class is used to represent a set of characters. The following combinations are allowed in describing a character class:

  • x: (where x is not one of the magic characters ^$()%.[]*+-?) represents the character x itself.
  • .: (a dot) represents all characters.
  • %a: represents all letters.
  • %c: represents all control characters.
  • %d: represents all digits.
  • %l: represents all lowercase letters.
  • %p: represents all punctuation characters.
  • %s: represents all space characters.
  • %u: represents all uppercase letters.
  • %w: represents all alphanumeric characters.
  • %x: represents all hexadecimal digits.
  • %z: represents the character with representation 0.
  • %x: (where x is any non-alphanumeric character) represents the character x. This is the standard way to escape the magic characters. Any punctuation character (even the non magic) can be preceded by a '%' when used to represent itself in a pattern.
  • [set]: represents the class which is the union of all characters in set. A range of characters can be specified by separating the end characters of the range with a '-'. All classes %x described above can also be used as components in set. All other characters in set represent themselves. For example, [%w_] (or [_%w]) represents all alphanumeric characters plus the underscore, [0-7] represents the octal digits, and [0-7%l%-] represents the octal digits plus the lowercase letters plus the '-' character.

    The interaction between ranges and classes is not defined. Therefore, patterns like [%a-z] or [a-%%] have no meaning.

  • [^set]: represents the complement of set, where set is interpreted as above.

For all classes represented by single letters (%a, %c, etc.), the corresponding uppercase letter represents the complement of the class. For instance, %S represents all non-space characters.

The definitions of letter, space, and other character groups depend on the current locale. In particular, the class [a-z] may not be equivalent to %l.

Pattern Item:

A pattern item can be

  • a single character class, which matches any single character in the class;
  • a single character class followed by '*', which matches 0 or more repetitions of characters in the class. These repetition items will always match the longest possible sequence;
  • a single character class followed by '+', which matches 1 or more repetitions of characters in the class. These repetition items will always match the longest possible sequence;
  • a single character class followed by '-', which also matches 0 or more repetitions of characters in the class. Unlike '*', these repetition items will always match the shortest possible sequence;
  • a single character class followed by '?', which matches 0 or 1 occurrence of a character in the class;
  • %n, for n between 1 and 9; such item matches a substring equal to the n-th captured string (see below);
  • %bxy, where x and y are two distinct characters; such item matches strings that start with x, end with y, and where the x and y are balanced. This means that, if one reads the string from left to right, counting +1 for an x and -1 for a y, the ending y is the first y where the count reaches 0. For instance, the item %b() matches expressions with balanced parentheses.

Pattern:

A pattern is a sequence of pattern items. A '^' at the beginning of a pattern anchors the match at the beginning of the subject string. A '$' at the end of a pattern anchors the match at the end of the subject string. At other positions, '^' and '$' have no special meaning and represent themselves.

Captures:

A pattern can contain sub-patterns enclosed in parentheses; they describe captures. When a match succeeds, the substrings of the subject string that match captures are stored (captured) for future use. Captures are numbered according to their left parentheses. For instance, in the pattern "(a*(.)%w(%s*))", the part of the string matching "a*(.)%w(%s*)" is stored as the first capture (and therefore has number 1); the character matching "." is captured with number 2, and the part matching "%s*" has number 3.

As a special case, the empty capture () captures the current string position (a number). For instance, if we apply the pattern "()aa()" on the string "flaaap", there will be two captures: 3 and 5.

A pattern cannot contain embedded zeros. Use %z instead.

5.5 - Table Manipulation

This library provides generic functions for table manipulation. It provides all its functions inside the table table.

Most functions in the table library assume that the table represents an array or a list. For these functions, when we talk about the "length" of a table we mean the result of the length operator.

table.concat (table [, sep [, i [, j]]])

Given an array where all elements are strings or numbers, returns table[i]..sep..table[i+1] ··· sep..table[j]. The default value for sep is the empty string, the default for i is 1, and the default for j is the length of the table. If i is greater than j, returns the empty string.

table.insert (table, [pos,] value)

Inserts element value at position pos in table, shifting up other elements to open space, if necessary. The default value for pos is n+1, where n is the length of the table (see §2.5.5), so that a call table.insert(t,x) inserts x at the end of table t.

table.maxn (table)

Returns the largest positive numerical index of the given table, or zero if the table has no positive numerical indices. (To do its job this function does a linear traversal of the whole table.)

table.remove (table [, pos])

Removes from table the element at position pos, shifting down other elements to close the space, if necessary. Returns the value of the removed element. The default value for pos is n, where n is the length of the table, so that a call table.remove(t) removes the last element of table t.

table.sort (table [, comp])

Sorts table elements in a given order, in-place, from table[1] to table[n], where n is the length of the table. If comp is given, then it must be a function that receives two table elements, and returns true when the first is less than the second (so that not comp(a[i+1],a[i]) will be true after the sort). If comp is not given, then the standard Lua operator < is used instead.

The sort algorithm is not stable; that is, elements considered equal by the given order may have their relative positions changed by the sort.

5.6 - Mathematical Functions

This library is an interface to the standard C math library. It provides all its functions inside the table math.

math.abs (x)

Returns the absolute value of x.

math.acos (x)

Returns the arc cosine of x (in radians).

math.asin (x)

Returns the arc sine of x (in radians).

math.atan (x)

Returns the arc tangent of x (in radians).

math.atan2 (y, x)

Returns the arc tangent of y/x (in radians), but uses the signs of both parameters to find the quadrant of the result. (It also handles correctly the case of x being zero.)

math.ceil (x)

Returns the smallest integer larger than or equal to x.

math.cos (x)

Returns the cosine of x (assumed to be in radians).

math.cosh (x)

Returns the hyperbolic cosine of x.

math.deg (x)

Returns the angle x (given in radians) in degrees.

math.exp (x)

Returns the value ex.

math.floor (x)

Returns the largest integer smaller than or equal to x.

math.fmod (x, y)

Returns the remainder of the division of x by y that rounds the quotient towards zero.

math.frexp (x)

Returns m and e such that x = m2e, e is an integer and the absolute value of m is in the range [0.5, 1) (or zero when x is zero).

math.huge

The value HUGE_VAL, a value larger than or equal to any other numerical value.

math.ldexp (m, e)

Returns m2e (e should be an integer).

math.log (x)

Returns the natural logarithm of x.

math.log10 (x)

Returns the base-10 logarithm of x.

math.max (x, ···)

Returns the maximum value among its arguments.

math.min (x, ···)

Returns the minimum value among its arguments.

math.modf (x)

Returns two numbers, the integral part of x and the fractional part of x.

math.pi

The value of pi.

math.pow (x, y)

Returns xy. (You can also use the expression x^y to compute this value.)

math.rad (x)

Returns the angle x (given in degrees) in radians.

math.random ([m [, n]])

This function is an interface to the simple pseudo-random generator function rand provided by ANSI C. (No guarantees can be given for its statistical properties.)

When called without arguments, returns a uniform pseudo-random real number in the range [0,1). When called with an integer number m, math.random returns a uniform pseudo-random integer in the range [1, m]. When called with two integer numbers m and n, math.random returns a uniform pseudo-random integer in the range [m, n].

math.randomseed (x)

Sets x as the "seed" for the pseudo-random generator: equal seeds produce equal sequences of numbers.

math.sin (x)

Returns the sine of x (assumed to be in radians).

math.sinh (x)

Returns the hyperbolic sine of x.

math.sqrt (x)

Returns the square root of x. (You can also use the expression x^0.5 to compute this value.)

math.tan (x)

Returns the tangent of x (assumed to be in radians).

math.tanh (x)

Returns the hyperbolic tangent of x.

5.7 - Input and Output Facilities

The I/O library provides two different styles for file manipulation. The first one uses implicit file descriptors; that is, there are operations to set a default input file and a default output file, and all input/output operations are over these default files. The second style uses explicit file descriptors.

When using implicit file descriptors, all operations are supplied by table io. When using explicit file descriptors, the operation io.open returns a file descriptor and then all operations are supplied as methods of the file descriptor.

The table io also provides three predefined file descriptors with their usual meanings from C: io.stdin, io.stdout, and io.stderr. The I/O library never closes these files.

Unless otherwise stated, all I/O functions return nil on failure (plus an error message as a second result and a system-dependent error code as a third result) and some value different from nil on success.

io.close ([file])

Equivalent to file:close(). Without a file, closes the default output file.

io.flush ()

Equivalent to file:flush over the default output file.

io.input ([file])

When called with a file name, it opens the named file (in text mode), and sets its handle as the default input file. When called with a file handle, it simply sets this file handle as the default input file. When called without parameters, it returns the current default input file.

In case of errors this function raises the error, instead of returning an error code.

io.lines ([filename])

Opens the given file name in read mode and returns an iterator function that, each time it is called, returns a new line from the file. Therefore, the construction 

     for line in io.lines(filename) do body end

will iterate over all lines of the file. When the iterator function detects the end of file, it returns nil (to finish the loop) and automatically closes the file.

The call io.lines() (with no file name) is equivalent to io.input():lines(); that is, it iterates over the lines of the default input file. In this case it does not close the file when the loop ends.

io.open (filename [, mode])

This function opens a file, in the mode specified in the string mode. It returns a new file handle, or, in case of errors, nil plus an error message.

The mode string can be any of the following:

  • "r": read mode (the default);
  • "w": write mode;
  • "a": append mode;
  • "r+": update mode, all previous data is preserved;
  • "w+": update mode, all previous data is erased;
  • "a+": append update mode, previous data is preserved, writing is only allowed at the end of file.

The mode string can also have a 'b' at the end, which is needed in some systems to open the file in binary mode. This string is exactly what is used in the standard C function fopen.

io.output ([file])

Similar to io.input, but operates over the default output file.

io.popen (prog [, mode])

Starts program prog in a separated process and returns a file handle that you can use to read data from this program (if mode is "r", the default) or to write data to this program (if mode is "w").

This function is system dependent and is not available on all platforms.

io.read (···)

Equivalent to io.input():read.

io.tmpfile ()

Returns a handle for a temporary file. This file is opened in update mode and it is automatically removed when the program ends.

io.type (obj)

Checks whether obj is a valid file handle. Returns the string "file" if obj is an open file handle, "closed file" if obj is a closed file handle, or nil if obj is not a file handle.

io.write (···)

Equivalent to io.output():write.

file:close ()

Closes file. Note that files are automatically closed when their handles are garbage collected, but that takes an unpredictable amount of time to happen.

file:flush ()

Saves any written data to file.

file:lines ()

Returns an iterator function that, each time it is called, returns a new line from the file. Therefore, the construction 

     for line in file:lines() do body end

will iterate over all lines of the file. (Unlike io.lines, this function does not close the file when the loop ends.)

file:read (···)

Reads the file file, according to the given formats, which specify what to read. For each format, the function returns a string (or a number) with the characters read, or nil if it cannot read data with the specified format. When called without formats, it uses a default format that reads the entire next line (see below).

The available formats are

  • "*n": reads a number; this is the only format that returns a number instead of a string.
  • "*a": reads the whole file, starting at the current position. On end of file, it returns the empty string.
  • "*l": reads the next line (skipping the end of line), returning nil on end of file. This is the default format.
  • number: reads a string with up to this number of characters, returning nil on end of file. If number is zero, it reads nothing and returns an empty string, or nil on end of file.

file:seek ([whence] [, offset])

Sets and gets the file position, measured from the beginning of the file, to the position given by offset plus a base specified by the string whence, as follows:

  • "set": base is position 0 (beginning of the file);
  • "cur": base is current position;
  • "end": base is end of file;

In case of success, function seek returns the final file position, measured in bytes from the beginning of the file. If this function fails, it returns nil, plus a string describing the error.

The default value for whence is "cur", and for offset is 0. Therefore, the call file:seek() returns the current file position, without changing it; the call file:seek("set") sets the position to the beginning of the file (and returns 0); and the call file:seek("end") sets the position to the end of the file, and returns its size.

file:setvbuf (mode [, size])

Sets the buffering mode for an output file. There are three available modes:

  • "no": no buffering; the result of any output operation appears immediately.
  • "full": full buffering; output operation is performed only when the buffer is full (or when you explicitly flush the file (see io.flush)).
  • "line": line buffering; output is buffered until a newline is output or there is any input from some special files (such as a terminal device).

For the last two cases, size specifies the size of the buffer, in bytes. The default is an appropriate size.

file:write (···)

Writes the value of each of its arguments to the file. The arguments must be strings or numbers. To write other values, use tostring or string.format before write.

5.8 - Operating System Facilities

This library is implemented through table os.

os.clock ()

Returns an approximation of the amount in seconds of CPU time used by the program.

os.date ([format [, time]])

Returns a string or a table containing date and time, formatted according to the given string format.

If the time argument is present, this is the time to be formatted (see the os.time function for a description of this value). Otherwise, date formats the current time.

If format starts with '!', then the date is formatted in Coordinated Universal Time. After this optional character, if format is the string "*t", then date returns a table with the following fields: year (four digits), month (1--12), day (1--31), hour (0--23), min (0--59), sec (0--61), wday (weekday, Sunday is 1), yday (day of the year), and isdst (daylight saving flag, a boolean).

If format is not "*t", then date returns the date as a string, formatted according to the same rules as the C function strftime.

When called without arguments, date returns a reasonable date and time representation that depends on the host system and on the current locale (that is, os.date() is equivalent to os.date("%c")).

os.difftime (t2, t1)

Returns the number of seconds from time t1 to time t2. In POSIX, Windows, and some other systems, this value is exactly t2-t1.

os.execute ([command])

This function is equivalent to the C function system. It passes command to be executed by an operating system shell. It returns a status code, which is system-dependent. If command is absent, then it returns nonzero if a shell is available and zero otherwise.

os.exit ([code])

Calls the C function exit, with an optional code, to terminate the host program. The default value for code is the success code.

os.getenv (varname)

Returns the value of the process environment variable varname, or nil if the variable is not defined.

os.remove (filename)

Deletes the file or directory with the given name. Directories must be empty to be removed. If this function fails, it returns nil, plus a string describing the error.

os.rename (oldname, newname)

Renames file or directory named oldname to newname. If this function fails, it returns nil, plus a string describing the error.

os.setlocale (locale [, category])

Sets the current locale of the program. locale is a string specifying a locale; category is an optional string describing which category to change: "all", "collate", "ctype", "monetary", "numeric", or "time"; the default category is "all". The function returns the name of the new locale, or nil if the request cannot be honored.

If locale is the empty string, the current locale is set to an implementation-defined native locale. If locale is the string "C", the current locale is set to the standard C locale.

When called with nil as the first argument, this function only returns the name of the current locale for the given category.

os.time ([table])

Returns the current time when called without arguments, or a time representing the date and time specified by the given table. This table must have fields year, month, and day, and may have fields hour, min, sec, and isdst (for a description of these fields, see the os.date function).

The returned value is a number, whose meaning depends on your system. In POSIX, Windows, and some other systems, this number counts the number of seconds since some given start time (the "epoch"). In other systems, the meaning is not specified, and the number returned by time can be used only as an argument to date and difftime.

os.tmpname ()

Returns a string with a file name that can be used for a temporary file. The file must be explicitly opened before its use and explicitly removed when no longer needed.

On some systems (POSIX), this function also creates a file with that name, to avoid security risks. (Someone else might create the file with wrong permissions in the time between getting the name and creating the file.) You still have to open the file to use it and to remove it (even if you do not use it).

When possible, you may prefer to use io.tmpfile, which automatically removes the file when the program ends.

5.9 - The Debug Library

This library provides the functionality of the debug interface to Lua programs. You should exert care when using this library. The functions provided here should be used exclusively for debugging and similar tasks, such as profiling. Please resist the temptation to use them as a usual programming tool: they can be very slow. Moreover, several of these functions violate some assumptions about Lua code (e.g., that variables local to a function cannot be accessed from outside or that userdata metatables cannot be changed by Lua code) and therefore can compromise otherwise secure code.

All functions in this library are provided inside the debug table. All functions that operate over a thread have an optional first argument which is the thread to operate over. The default is always the current thread.

debug.debug ()

Enters an interactive mode with the user, running each string that the user enters. Using simple commands and other debug facilities, the user can inspect global and local variables, change their values, evaluate expressions, and so on. A line containing only the word cont finishes this function, so that the caller continues its execution.

Note that commands for debug.debug are not lexically nested within any function, and so have no direct access to local variables.

debug.getfenv (o)

Returns the environment of object o.

debug.gethook ([thread])

Returns the current hook settings of the thread, as three values: the current hook function, the current hook mask, and the current hook count (as set by the debug.sethook function).

debug.getinfo ([thread,] function [, what])

Returns a table with information about a function. You can give the function directly, or you can give a number as the value of function, which means the function running at level function of the call stack of the given thread: level 0 is the current function (getinfo itself); level 1 is the function that called getinfo; and so on. If function is a number larger than the number of active functions, then getinfo returns nil.

The returned table can contain all the fields returned by lua_getinfo, with the string what describing which fields to fill in. The default for what is to get all information available, except the table of valid lines. If present, the option 'f' adds a field named func with the function itself. If present, the option 'L' adds a field named activelines with the table of valid lines.

For instance, the expression debug.getinfo(1,"n").name returns a table with a name for the current function, if a reasonable name can be found, and the expression debug.getinfo(print) returns a table with all available information about the print function.

debug.getlocal ([thread,] level, local)

This function returns the name and the value of the local variable with index local of the function at level level of the stack. (The first parameter or local variable has index 1, and so on, until the last active local variable.) The function returns nil if there is no local variable with the given index, and raises an error when called with a level out of range. (You can call debug.getinfo to check whether the level is valid.)

Variable names starting with '(' (open parentheses) represent internal variables (loop control variables, temporaries, and C function locals).

debug.getmetatable (object)

Returns the metatable of the given object or nil if it does not have a metatable.

debug.getregistry ()

Returns the registry table (see §3.5).

debug.getupvalue (func, up)

This function returns the name and the value of the upvalue with index up of the function func. The function returns nil if there is no upvalue with the given index.

debug.setfenv (object, table)

Sets the environment of the given object to the given table. Returns object.

debug.sethook ([thread,] hook, mask [, count])

Sets the given function as a hook. The string mask and the number count describe when the hook will be called. The string mask may have the following characters, with the given meaning:

  • "c": the hook is called every time Lua calls a function;
  • "r": the hook is called every time Lua returns from a function;
  • "l": the hook is called every time Lua enters a new line of code.

With a count different from zero, the hook is called after every count instructions.

When called without arguments, debug.sethook turns off the hook.

When the hook is called, its first parameter is a string describing the event that has triggered its call: "call", "return" (or "tail return", when simulating a return from a tail call), "line", and "count". For line events, the hook also gets the new line number as its second parameter. Inside a hook, you can call getinfo with level 2 to get more information about the running function (level 0 is the getinfo function, and level 1 is the hook function), unless the event is "tail return". In this case, Lua is only simulating the return, and a call to getinfo will return invalid data.

debug.setlocal ([thread,] level, local, value)

This function assigns the value value to the local variable with index local of the function at level level of the stack. The function returns nil if there is no local variable with the given index, and raises an error when called with a level out of range. (You can call getinfo to check whether the level is valid.) Otherwise, it returns the name of the local variable.

debug.setmetatable (object, table)

Sets the metatable for the given object to the given table (which can be nil).

debug.setupvalue (func, up, value)

This function assigns the value value to the upvalue with index up of the function func. The function returns nil if there is no upvalue with the given index. Otherwise, it returns the name of the upvalue.

debug.traceback ([thread,] [message [, level]])

Returns a string with a traceback of the call stack. An optional message string is appended at the beginning of the traceback. An optional level number tells at which level to start the traceback (default is 1, the function calling traceback).

6 - Lua Stand-alone

Although Lua has been designed as an extension language, to be embedded in a host C program, it is also frequently used as a stand-alone language. An interpreter for Lua as a stand-alone language, called simply lua, is provided with the standard distribution. The stand-alone interpreter includes all standard libraries, including the debug library. Its usage is: 

     lua [options] [script [args]]

The options are:

  • -e stat: executes string stat;
  • -l mod: "requires" mod;
  • -i: enters interactive mode after running script;
  • -v: prints version information;
  • --: stops handling options;
  • -: executes stdin as a file and stops handling options.

After handling its options, lua runs the given script, passing to it the given args as string arguments. When called without arguments, lua behaves as lua -v -i when the standard input (stdin) is a terminal, and as lua - otherwise.

Before running any argument, the interpreter checks for an environment variable LUA_INIT. If its format is @filename, then lua executes the file. Otherwise, lua executes the string itself.

All options are handled in order, except -i. For instance, an invocation like 

     $ lua -e'a=1' -e 'print(a)' script.lua

will first set a to 1, then print the value of a (which is '1'), and finally run the file script.lua with no arguments. (Here $ is the shell prompt. Your prompt may be different.)

Before starting to run the script, lua collects all arguments in the command line in a global table called arg. The script name is stored at index 0, the first argument after the script name goes to index 1, and so on. Any arguments before the script name (that is, the interpreter name plus the options) go to negative indices. For instance, in the call 

     $ lua -la b.lua t1 t2

the interpreter first runs the file a.lua, then creates a table 

     arg = { [-2] = "lua", [-1] = "-la",
             [0] = "b.lua",
             [1] = "t1", [2] = "t2" }

and finally runs the file b.lua. The script is called with arg[1], arg[2], ··· as arguments; it can also access these arguments with the vararg expression '...'.

In interactive mode, if you write an incomplete statement, the interpreter waits for its completion by issuing a different prompt.

If the global variable _PROMPT contains a string, then its value is used as the prompt. Similarly, if the global variable _PROMPT2 contains a string, its value is used as the secondary prompt (issued during incomplete statements). Therefore, both prompts can be changed directly on the command line or in any Lua programs by assigning to _PROMPT. See the next example: 

     $ lua -e"_PROMPT='myprompt> '" -i

(The outer pair of quotes is for the shell, the inner pair is for Lua.) Note the use of -i to enter interactive mode; otherwise, the program would just end silently right after the assignment to _PROMPT.

To allow the use of Lua as a script interpreter in Unix systems, the stand-alone interpreter skips the first line of a chunk if it starts with #. Therefore, Lua scripts can be made into executable programs by using chmod +x and the #! form, as in 

     #!/usr/local/bin/lua

(Of course, the location of the Lua interpreter may be different in your machine. If lua is in your PATH, then 

     #!/usr/bin/env lua

is a more portable solution.)

7 - Incompatibilities with the Previous Version

Here we list the incompatibilities that you may find when moving a program from Lua 5.0 to Lua 5.1. You can avoid most of the incompatibilities compiling Lua with appropriate options (see file luaconf.h). However, all these compatibility options will be removed in the next version of Lua.

7.1 - Changes in the Language

  • The vararg system changed from the pseudo-argument arg with a table with the extra arguments to the vararg expression. (See compile-time option LUA_COMPAT_VARARG in luaconf.h.)
  • There was a subtle change in the scope of the implicit variables of the for statement and for the repeat statement.
  • The long string/long comment syntax ([[string]]) does not allow nesting. You can use the new syntax ([=[string]=]) in these cases. (See compile-time option LUA_COMPAT_LSTR in luaconf.h.)

7.2 - Changes in the Libraries

  • Function string.gfind was renamed string.gmatch. (See compile-time option LUA_COMPAT_GFIND in luaconf.h.)
  • When string.gsub is called with a function as its third argument, whenever this function returns nil or false the replacement string is the whole match, instead of the empty string.
  • Function table.setn was deprecated. Function table.getn corresponds to the new length operator (#); use the operator instead of the function. (See compile-time option LUA_COMPAT_GETN in luaconf.h.)
  • Function loadlib was renamed package.loadlib. (See compile-time option LUA_COMPAT_LOADLIB in luaconf.h.)
  • Function math.mod was renamed math.fmod. (See compile-time option LUA_COMPAT_MOD in luaconf.h.)
  • Functions table.foreach and table.foreachi are deprecated. You can use a for loop with pairs or ipairs instead.
  • There were substantial changes in function require due to the new module system. However, the new behavior is mostly compatible with the old, but require gets the path from package.path instead of from LUA_PATH.
  • Function collectgarbage has different arguments. Function gcinfo is deprecated; use collectgarbage("count") instead.

7.3 - Changes in the API

  • The luaopen_* functions (to open libraries) cannot be called directly, like a regular C function. They must be called through Lua, like a Lua function.
  • Function lua_open was replaced by lua_newstate to allow the user to set a memory-allocation function. You can use luaL_newstate from the standard library to create a state with a standard allocation function (based on realloc).
  • Functions luaL_getn and luaL_setn (from the auxiliary library) are deprecated. Use lua_objlen instead of luaL_getn and nothing instead of luaL_setn.
  • Function luaL_openlib was replaced by luaL_register.
  • Function luaL_checkudata now throws an error when the given value is not a userdata of the expected type. (In Lua 5.0 it returned NULL.)

8 - The Complete Syntax of Lua

Here is the complete syntax of Lua in extended BNF. (It does not describe operator precedences.) 


	chunk ::= {stat [`;´]} [laststat [`;´]]

	block ::= chunk

	stat ::=  varlist `=´ explist | 
		 functioncall | 
		 do block end | 
		 while exp do block end | 
		 repeat block until exp | 
		 if exp then block {elseif exp then block} [else block] end | 
		 for Name `=´ exp `,´ exp [`,´ exp] do block end | 
		 for namelist in explist do block end | 
		 function funcname funcbody | 
		 local function Name funcbody | 
		 local namelist [`=´ explist] 

	laststat ::= return [explist] | break

	funcname ::= Name {`.´ Name} [`:´ Name]

	varlist ::= var {`,´ var}

	var ::=  Name | prefixexp `[´ exp `]´ | prefixexp `.´ Name 

	namelist ::= Name {`,´ Name}

	explist ::= {exp `,´} exp

	exp ::=  nil | false | true | Number | String | `...´ | function | 
		 prefixexp | tableconstructor | exp binop exp | unop exp 

	prefixexp ::= var | functioncall | `(´ exp `)´

	functioncall ::=  prefixexp args | prefixexp `:´ Name args 

	args ::=  `(´ [explist] `)´ | tableconstructor | String 

	function ::= function funcbody

	funcbody ::= `(´ [parlist] `)´ block end

	parlist ::= namelist [`,´ `...´] | `...´

	tableconstructor ::= `{´ [fieldlist] `}´

	fieldlist ::= field {fieldsep field} [fieldsep]

	field ::= `[´ exp `]´ `=´ exp | Name `=´ exp | exp

	fieldsep ::= `,´ | `;´

	binop ::= `+´ | `-´ | `*´ | `/´ | `^´ | `%´ | `..´ | 
		 `<´ | `<=´ | `>´ | `>=´ | `==´ | `~=´ | 
		 and | or

	unop ::= `-´ | not | `#´

Last update: Mon Feb 13 18:54:19 BRST 2012 redis-2.6.16/deps/lua/doc/readme.html000066400000000000000000000015021220734223100173120ustar00rootroot00000000000000 Lua documentation

Lua Documentation

This is the documentation included in the source distribution of Lua 5.1.5. Lua's official web site contains updated documentation, especially the reference manual.

Last update: Fri Feb 3 09:44:42 BRST 2012 redis-2.6.16/deps/lua/etc/000077500000000000000000000000001220734223100151775ustar00rootroot00000000000000redis-2.6.16/deps/lua/etc/Makefile000066400000000000000000000016201220734223100166360ustar00rootroot00000000000000# makefile for Lua etc TOP= .. LIB= $(TOP)/src INC= $(TOP)/src BIN= $(TOP)/src SRC= $(TOP)/src TST= $(TOP)/test CC= gcc CFLAGS= -O2 -Wall -I$(INC) $(MYCFLAGS) MYCFLAGS= MYLDFLAGS= -Wl,-E MYLIBS= -lm #MYLIBS= -lm -Wl,-E -ldl -lreadline -lhistory -lncurses RM= rm -f default: @echo 'Please choose a target: min noparser one strict clean' min: min.c $(CC) $(CFLAGS) $@.c -L$(LIB) -llua $(MYLIBS) echo 'print"Hello there!"' | ./a.out noparser: noparser.o $(CC) noparser.o $(SRC)/lua.o -L$(LIB) -llua $(MYLIBS) $(BIN)/luac $(TST)/hello.lua -./a.out luac.out -./a.out -e'a=1' one: $(CC) $(CFLAGS) all.c $(MYLIBS) ./a.out $(TST)/hello.lua strict: -$(BIN)/lua -e 'print(a);b=2' -$(BIN)/lua -lstrict -e 'print(a)' -$(BIN)/lua -e 'function f() b=2 end f()' -$(BIN)/lua -lstrict -e 'function f() b=2 end f()' clean: $(RM) a.out core core.* *.o luac.out .PHONY: default min noparser one strict clean redis-2.6.16/deps/lua/etc/README000066400000000000000000000017141220734223100160620ustar00rootroot00000000000000This directory contains some useful files and code. Unlike the code in ../src, everything here is in the public domain. If any of the makes fail, you're probably not using the same libraries used to build Lua. Set MYLIBS in Makefile accordingly. all.c Full Lua interpreter in a single file. Do "make one" for a demo. lua.hpp Lua header files for C++ using 'extern "C"'. lua.ico A Lua icon for Windows (and web sites: save as favicon.ico). Drawn by hand by Markus Gritsch . lua.pc pkg-config data for Lua luavs.bat Script to build Lua under "Visual Studio .NET Command Prompt". Run it from the toplevel as etc\luavs.bat. min.c A minimal Lua interpreter. Good for learning and for starting your own. Do "make min" for a demo. noparser.c Linking with noparser.o avoids loading the parsing modules in lualib.a. Do "make noparser" for a demo. strict.lua Traps uses of undeclared global variables. Do "make strict" for a demo. redis-2.6.16/deps/lua/etc/all.c000066400000000000000000000012461220734223100161160ustar00rootroot00000000000000/* * all.c -- Lua core, libraries and interpreter in a single file */ #define luaall_c #include "lapi.c" #include "lcode.c" #include "ldebug.c" #include "ldo.c" #include "ldump.c" #include "lfunc.c" #include "lgc.c" #include "llex.c" #include "lmem.c" #include "lobject.c" #include "lopcodes.c" #include "lparser.c" #include "lstate.c" #include "lstring.c" #include "ltable.c" #include "ltm.c" #include "lundump.c" #include "lvm.c" #include "lzio.c" #include "lauxlib.c" #include "lbaselib.c" #include "ldblib.c" #include "liolib.c" #include "linit.c" #include "lmathlib.c" #include "loadlib.c" #include "loslib.c" #include "lstrlib.c" #include "ltablib.c" #include "lua.c" redis-2.6.16/deps/lua/etc/lua.hpp000066400000000000000000000002771220734223100164770ustar00rootroot00000000000000// lua.hpp // Lua header files for C++ // <> not supplied automatically because Lua also compiles as C++ extern "C" { #include "lua.h" #include "lualib.h" #include "lauxlib.h" } redis-2.6.16/deps/lua/etc/lua.ico000066400000000000000000000020661220734223100164600ustar00rootroot00000000000000 è&(( @€€€€€€€€€ÀÀÀ€€€ÿÿÿÿÿÿÿÿÿÿÿÿ„DDH€DDDDDD€DDDDDDDDp„DDDDDDDDHDDDDDDDDDD€tDDDDDDDDDDGDDDDDDDDDDDDDÿÿHÿ„ÿ‡D€DˆˆOx„øˆøD@„DDDO„O„øDøDH„DDDO„O„O÷øDHDDDDO„O„DHøDDDDDDO„O„÷ˆøDDDDDDO„O„ÿtDDDDDDDDDDDDDDDDDDDDDDDˆ„DDDDDDDDDDD‡ÿ÷„DD„DDDDDDDÿÿtDH„DDDDDDHÿÿÿøDHDDDDDDHÿÿÿøD@DDDDDDHÿÿÿøD€DDDDDDDÿÿtDtDDDDDD‡ÿ÷„GDDDDDDDˆ„D€wp„DDDDDDDDHxDHpDDDDDDDDp„DD€DDDDDD€DDDG„DDH€DDDGDDDG„DD€xDHpwpÿ€ÿþÿøÿðÿàÀ?À?€€€€À?À?àGðøþÿ€ÿÿþÿÿÿÿÿÿÿÿÿÇ( €€€€€€€€€€ÀÀÀ€€€ÿÿÿÿÿÿÿÿÿÿÿÿ„DH„DDDHDDDDD€DDDDD@„DDDDDHDDDDDDDDDDDDDDDDDDDDDDDDDøD„DDDÿÿHDDDÿÿ@DDDø€„DDDHtG„DHDDDDtGð?DDÀÿô€€DDDDÿ÷DDDHÿ÷€€DDÀDHð0ÿ÷ÿðÿð°redis-2.6.16/deps/lua/etc/lua.pc000066400000000000000000000012221220734223100163010ustar00rootroot00000000000000# lua.pc -- pkg-config data for Lua # vars from install Makefile # grep '^V=' ../Makefile V= 5.1 # grep '^R=' ../Makefile R= 5.1.5 # grep '^INSTALL_.*=' ../Makefile | sed 's/INSTALL_TOP/prefix/' prefix= /usr/local INSTALL_BIN= ${prefix}/bin INSTALL_INC= ${prefix}/include INSTALL_LIB= ${prefix}/lib INSTALL_MAN= ${prefix}/man/man1 INSTALL_LMOD= ${prefix}/share/lua/${V} INSTALL_CMOD= ${prefix}/lib/lua/${V} # canonical vars exec_prefix=${prefix} libdir=${exec_prefix}/lib includedir=${prefix}/include Name: Lua Description: An Extensible Extension Language Version: ${R} Requires: Libs: -L${libdir} -llua -lm Cflags: -I${includedir} # (end of lua.pc) redis-2.6.16/deps/lua/etc/luavs.bat000066400000000000000000000020561220734223100170240ustar00rootroot00000000000000@rem Script to build Lua under "Visual Studio .NET Command Prompt". @rem Do not run from this directory; run it from the toplevel: etc\luavs.bat . @rem It creates lua51.dll, lua51.lib, lua.exe, and luac.exe in src. @rem (contributed by David Manura and Mike Pall) @setlocal @set MYCOMPILE=cl /nologo /MD /O2 /W3 /c /D_CRT_SECURE_NO_DEPRECATE @set MYLINK=link /nologo @set MYMT=mt /nologo cd src %MYCOMPILE% /DLUA_BUILD_AS_DLL l*.c del lua.obj luac.obj %MYLINK% /DLL /out:lua51.dll l*.obj if exist lua51.dll.manifest^ %MYMT% -manifest lua51.dll.manifest -outputresource:lua51.dll;2 %MYCOMPILE% /DLUA_BUILD_AS_DLL lua.c %MYLINK% /out:lua.exe lua.obj lua51.lib if exist lua.exe.manifest^ %MYMT% -manifest lua.exe.manifest -outputresource:lua.exe %MYCOMPILE% l*.c print.c del lua.obj linit.obj lbaselib.obj ldblib.obj liolib.obj lmathlib.obj^ loslib.obj ltablib.obj lstrlib.obj loadlib.obj %MYLINK% /out:luac.exe *.obj if exist luac.exe.manifest^ %MYMT% -manifest luac.exe.manifest -outputresource:luac.exe del *.obj *.manifest cd .. redis-2.6.16/deps/lua/etc/min.c000066400000000000000000000014401220734223100161250ustar00rootroot00000000000000/* * min.c -- a minimal Lua interpreter * loads stdin only with minimal error handling. * no interaction, and no standard library, only a "print" function. */ #include #include "lua.h" #include "lauxlib.h" static int print(lua_State *L) { int n=lua_gettop(L); int i; for (i=1; i<=n; i++) { if (i>1) printf("\t"); if (lua_isstring(L,i)) printf("%s",lua_tostring(L,i)); else if (lua_isnil(L,i)) printf("%s","nil"); else if (lua_isboolean(L,i)) printf("%s",lua_toboolean(L,i) ? "true" : "false"); else printf("%s:%p",luaL_typename(L,i),lua_topointer(L,i)); } printf("\n"); return 0; } int main(void) { lua_State *L=lua_open(); lua_register(L,"print",print); if (luaL_dofile(L,NULL)!=0) fprintf(stderr,"%s\n",lua_tostring(L,-1)); lua_close(L); return 0; } redis-2.6.16/deps/lua/etc/noparser.c000066400000000000000000000023451220734223100172000ustar00rootroot00000000000000/* * The code below can be used to make a Lua core that does not contain the * parsing modules (lcode, llex, lparser), which represent 35% of the total core. * You'll only be able to load binary files and strings, precompiled with luac. * (Of course, you'll have to build luac with the original parsing modules!) * * To use this module, simply compile it ("make noparser" does that) and list * its object file before the Lua libraries. The linker should then not load * the parsing modules. To try it, do "make luab". * * If you also want to avoid the dump module (ldump.o), define NODUMP. * #define NODUMP */ #define LUA_CORE #include "llex.h" #include "lparser.h" #include "lzio.h" LUAI_FUNC void luaX_init (lua_State *L) { UNUSED(L); } LUAI_FUNC Proto *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff, const char *name) { UNUSED(z); UNUSED(buff); UNUSED(name); lua_pushliteral(L,"parser not loaded"); lua_error(L); return NULL; } #ifdef NODUMP #include "lundump.h" LUAI_FUNC int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip) { UNUSED(f); UNUSED(w); UNUSED(data); UNUSED(strip); #if 1 UNUSED(L); return 0; #else lua_pushliteral(L,"dumper not loaded"); lua_error(L); #endif } #endif redis-2.6.16/deps/lua/etc/strict.lua000066400000000000000000000016401220734223100172130ustar00rootroot00000000000000-- -- strict.lua -- checks uses of undeclared global variables -- All global variables must be 'declared' through a regular assignment -- (even assigning nil will do) in a main chunk before being used -- anywhere or assigned to inside a function. -- local getinfo, error, rawset, rawget = debug.getinfo, error, rawset, rawget local mt = getmetatable(_G) if mt == nil then mt = {} setmetatable(_G, mt) end mt.__declared = {} local function what () local d = getinfo(3, "S") return d and d.what or "C" end mt.__newindex = function (t, n, v) if not mt.__declared[n] then local w = what() if w ~= "main" and w ~= "C" then error("assign to undeclared variable '"..n.."'", 2) end mt.__declared[n] = true end rawset(t, n, v) end mt.__index = function (t, n) if not mt.__declared[n] and what() ~= "C" then error("variable '"..n.."' is not declared", 2) end return rawget(t, n) end redis-2.6.16/deps/lua/src/000077500000000000000000000000001220734223100152135ustar00rootroot00000000000000redis-2.6.16/deps/lua/src/Makefile000066400000000000000000000140461220734223100166600ustar00rootroot00000000000000# makefile for building Lua # see ../INSTALL for installation instructions # see ../Makefile and luaconf.h for further customization # == CHANGE THE SETTINGS BELOW TO SUIT YOUR ENVIRONMENT ======================= # Your platform. See PLATS for possible values. PLAT= none CC= gcc CFLAGS= -O2 -Wall $(MYCFLAGS) AR= ar rcu RANLIB= ranlib RM= rm -f LIBS= -lm $(MYLIBS) MYCFLAGS= MYLDFLAGS= MYLIBS= # == END OF USER SETTINGS. NO NEED TO CHANGE ANYTHING BELOW THIS LINE ========= PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris LUA_A= liblua.a CORE_O= lapi.o lcode.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o \ lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o \ lundump.o lvm.o lzio.o strbuf.o LIB_O= lauxlib.o lbaselib.o ldblib.o liolib.o lmathlib.o loslib.o ltablib.o \ lstrlib.o loadlib.o linit.o lua_cjson.o lua_struct.o lua_cmsgpack.o LUA_T= lua LUA_O= lua.o LUAC_T= luac LUAC_O= luac.o print.o ALL_O= $(CORE_O) $(LIB_O) $(LUA_O) $(LUAC_O) ALL_T= $(LUA_A) $(LUA_T) $(LUAC_T) ALL_A= $(LUA_A) default: $(PLAT) all: $(ALL_T) o: $(ALL_O) a: $(ALL_A) $(LUA_A): $(CORE_O) $(LIB_O) $(AR) $@ $(CORE_O) $(LIB_O) # DLL needs all object files $(RANLIB) $@ $(LUA_T): $(LUA_O) $(LUA_A) $(CC) -o $@ $(MYLDFLAGS) $(LUA_O) $(LUA_A) $(LIBS) $(LUAC_T): $(LUAC_O) $(LUA_A) $(CC) -o $@ $(MYLDFLAGS) $(LUAC_O) $(LUA_A) $(LIBS) clean: $(RM) $(ALL_T) $(ALL_O) depend: @$(CC) $(CFLAGS) -MM l*.c print.c echo: @echo "PLAT = $(PLAT)" @echo "CC = $(CC)" @echo "CFLAGS = $(CFLAGS)" @echo "AR = $(AR)" @echo "RANLIB = $(RANLIB)" @echo "RM = $(RM)" @echo "MYCFLAGS = $(MYCFLAGS)" @echo "MYLDFLAGS = $(MYLDFLAGS)" @echo "MYLIBS = $(MYLIBS)" # convenience targets for popular platforms none: @echo "Please choose a platform:" @echo " $(PLATS)" aix: $(MAKE) all CC="xlc" CFLAGS="-O2 -DLUA_USE_POSIX -DLUA_USE_DLOPEN" MYLIBS="-ldl" MYLDFLAGS="-brtl -bexpall" ansi: $(MAKE) all MYCFLAGS=-DLUA_ANSI bsd: $(MAKE) all MYCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN" MYLIBS="-Wl,-E" freebsd: $(MAKE) all MYCFLAGS="-DLUA_USE_LINUX" MYLIBS="-Wl,-E -lreadline" generic: $(MAKE) all MYCFLAGS= linux: $(MAKE) all MYCFLAGS=-DLUA_USE_LINUX MYLIBS="-Wl,-E -ldl -lreadline -lhistory -lncurses" macosx: $(MAKE) all MYCFLAGS=-DLUA_USE_LINUX MYLIBS="-lreadline" # use this on Mac OS X 10.3- # $(MAKE) all MYCFLAGS=-DLUA_USE_MACOSX mingw: $(MAKE) "LUA_A=lua51.dll" "LUA_T=lua.exe" \ "AR=$(CC) -shared -o" "RANLIB=strip --strip-unneeded" \ "MYCFLAGS=-DLUA_BUILD_AS_DLL" "MYLIBS=" "MYLDFLAGS=-s" lua.exe $(MAKE) "LUAC_T=luac.exe" luac.exe posix: $(MAKE) all MYCFLAGS=-DLUA_USE_POSIX solaris: $(MAKE) all MYCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN" MYLIBS="-ldl" # list targets that do not create files (but not all makes understand .PHONY) .PHONY: all $(PLATS) default o a clean depend echo none # DO NOT DELETE lapi.o: lapi.c lua.h luaconf.h lapi.h lobject.h llimits.h ldebug.h \ lstate.h ltm.h lzio.h lmem.h ldo.h lfunc.h lgc.h lstring.h ltable.h \ lundump.h lvm.h lauxlib.o: lauxlib.c lua.h luaconf.h lauxlib.h lbaselib.o: lbaselib.c lua.h luaconf.h lauxlib.h lualib.h lcode.o: lcode.c lua.h luaconf.h lcode.h llex.h lobject.h llimits.h \ lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h lgc.h \ ltable.h ldblib.o: ldblib.c lua.h luaconf.h lauxlib.h lualib.h ldebug.o: ldebug.c lua.h luaconf.h lapi.h lobject.h llimits.h lcode.h \ llex.h lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h \ lfunc.h lstring.h lgc.h ltable.h lvm.h ldo.o: ldo.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \ lzio.h lmem.h ldo.h lfunc.h lgc.h lopcodes.h lparser.h lstring.h \ ltable.h lundump.h lvm.h ldump.o: ldump.c lua.h luaconf.h lobject.h llimits.h lstate.h ltm.h \ lzio.h lmem.h lundump.h lfunc.o: lfunc.c lua.h luaconf.h lfunc.h lobject.h llimits.h lgc.h lmem.h \ lstate.h ltm.h lzio.h lgc.o: lgc.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \ lzio.h lmem.h ldo.h lfunc.h lgc.h lstring.h ltable.h linit.o: linit.c lua.h luaconf.h lualib.h lauxlib.h liolib.o: liolib.c lua.h luaconf.h lauxlib.h lualib.h llex.o: llex.c lua.h luaconf.h ldo.h lobject.h llimits.h lstate.h ltm.h \ lzio.h lmem.h llex.h lparser.h lstring.h lgc.h ltable.h lmathlib.o: lmathlib.c lua.h luaconf.h lauxlib.h lualib.h lmem.o: lmem.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \ ltm.h lzio.h lmem.h ldo.h loadlib.o: loadlib.c lua.h luaconf.h lauxlib.h lualib.h lobject.o: lobject.c lua.h luaconf.h ldo.h lobject.h llimits.h lstate.h \ ltm.h lzio.h lmem.h lstring.h lgc.h lvm.h lopcodes.o: lopcodes.c lopcodes.h llimits.h lua.h luaconf.h loslib.o: loslib.c lua.h luaconf.h lauxlib.h lualib.h lparser.o: lparser.c lua.h luaconf.h lcode.h llex.h lobject.h llimits.h \ lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h \ lfunc.h lstring.h lgc.h ltable.h lstate.o: lstate.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \ ltm.h lzio.h lmem.h ldo.h lfunc.h lgc.h llex.h lstring.h ltable.h lstring.o: lstring.c lua.h luaconf.h lmem.h llimits.h lobject.h lstate.h \ ltm.h lzio.h lstring.h lgc.h lstrlib.o: lstrlib.c lua.h luaconf.h lauxlib.h lualib.h ltable.o: ltable.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \ ltm.h lzio.h lmem.h ldo.h lgc.h ltable.h ltablib.o: ltablib.c lua.h luaconf.h lauxlib.h lualib.h ltm.o: ltm.c lua.h luaconf.h lobject.h llimits.h lstate.h ltm.h lzio.h \ lmem.h lstring.h lgc.h ltable.h lua.o: lua.c lua.h luaconf.h lauxlib.h lualib.h luac.o: luac.c lua.h luaconf.h lauxlib.h ldo.h lobject.h llimits.h \ lstate.h ltm.h lzio.h lmem.h lfunc.h lopcodes.h lstring.h lgc.h \ lundump.h lundump.o: lundump.c lua.h luaconf.h ldebug.h lstate.h lobject.h \ llimits.h ltm.h lzio.h lmem.h ldo.h lfunc.h lstring.h lgc.h lundump.h lvm.o: lvm.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \ lzio.h lmem.h ldo.h lfunc.h lgc.h lopcodes.h lstring.h ltable.h lvm.h lzio.o: lzio.c lua.h luaconf.h llimits.h lmem.h lstate.h lobject.h ltm.h \ lzio.h print.o: print.c ldebug.h lstate.h lua.h luaconf.h lobject.h llimits.h \ ltm.h lzio.h lmem.h lopcodes.h lundump.h # (end of Makefile) redis-2.6.16/deps/lua/src/lapi.c000066400000000000000000000542641220734223100163170ustar00rootroot00000000000000/* ** $Id: lapi.c,v 2.55.1.5 2008/07/04 18:41:18 roberto Exp $ ** Lua API ** See Copyright Notice in lua.h */ #include #include #include #include #define lapi_c #define LUA_CORE #include "lua.h" #include "lapi.h" #include "ldebug.h" #include "ldo.h" #include "lfunc.h" #include "lgc.h" #include "lmem.h" #include "lobject.h" #include "lstate.h" #include "lstring.h" #include "ltable.h" #include "ltm.h" #include "lundump.h" #include "lvm.h" const char lua_ident[] = "$Lua: " LUA_RELEASE " " LUA_COPYRIGHT " $\n" "$Authors: " LUA_AUTHORS " $\n" "$URL: www.lua.org $\n"; #define api_checknelems(L, n) api_check(L, (n) <= (L->top - L->base)) #define api_checkvalidindex(L, i) api_check(L, (i) != luaO_nilobject) #define api_incr_top(L) {api_check(L, L->top < L->ci->top); L->top++;} static TValue *index2adr (lua_State *L, int idx) { if (idx > 0) { TValue *o = L->base + (idx - 1); api_check(L, idx <= L->ci->top - L->base); if (o >= L->top) return cast(TValue *, luaO_nilobject); else return o; } else if (idx > LUA_REGISTRYINDEX) { api_check(L, idx != 0 && -idx <= L->top - L->base); return L->top + idx; } else switch (idx) { /* pseudo-indices */ case LUA_REGISTRYINDEX: return registry(L); case LUA_ENVIRONINDEX: { Closure *func = curr_func(L); sethvalue(L, &L->env, func->c.env); return &L->env; } case LUA_GLOBALSINDEX: return gt(L); default: { Closure *func = curr_func(L); idx = LUA_GLOBALSINDEX - idx; return (idx <= func->c.nupvalues) ? &func->c.upvalue[idx-1] : cast(TValue *, luaO_nilobject); } } } static Table *getcurrenv (lua_State *L) { if (L->ci == L->base_ci) /* no enclosing function? */ return hvalue(gt(L)); /* use global table as environment */ else { Closure *func = curr_func(L); return func->c.env; } } void luaA_pushobject (lua_State *L, const TValue *o) { setobj2s(L, L->top, o); api_incr_top(L); } LUA_API int lua_checkstack (lua_State *L, int size) { int res = 1; lua_lock(L); if (size > LUAI_MAXCSTACK || (L->top - L->base + size) > LUAI_MAXCSTACK) res = 0; /* stack overflow */ else if (size > 0) { luaD_checkstack(L, size); if (L->ci->top < L->top + size) L->ci->top = L->top + size; } lua_unlock(L); return res; } LUA_API void lua_xmove (lua_State *from, lua_State *to, int n) { int i; if (from == to) return; lua_lock(to); api_checknelems(from, n); api_check(from, G(from) == G(to)); api_check(from, to->ci->top - to->top >= n); from->top -= n; for (i = 0; i < n; i++) { setobj2s(to, to->top++, from->top + i); } lua_unlock(to); } LUA_API void lua_setlevel (lua_State *from, lua_State *to) { to->nCcalls = from->nCcalls; } LUA_API lua_CFunction lua_atpanic (lua_State *L, lua_CFunction panicf) { lua_CFunction old; lua_lock(L); old = G(L)->panic; G(L)->panic = panicf; lua_unlock(L); return old; } LUA_API lua_State *lua_newthread (lua_State *L) { lua_State *L1; lua_lock(L); luaC_checkGC(L); L1 = luaE_newthread(L); setthvalue(L, L->top, L1); api_incr_top(L); lua_unlock(L); luai_userstatethread(L, L1); return L1; } /* ** basic stack manipulation */ LUA_API int lua_gettop (lua_State *L) { return cast_int(L->top - L->base); } LUA_API void lua_settop (lua_State *L, int idx) { lua_lock(L); if (idx >= 0) { api_check(L, idx <= L->stack_last - L->base); while (L->top < L->base + idx) setnilvalue(L->top++); L->top = L->base + idx; } else { api_check(L, -(idx+1) <= (L->top - L->base)); L->top += idx+1; /* `subtract' index (index is negative) */ } lua_unlock(L); } LUA_API void lua_remove (lua_State *L, int idx) { StkId p; lua_lock(L); p = index2adr(L, idx); api_checkvalidindex(L, p); while (++p < L->top) setobjs2s(L, p-1, p); L->top--; lua_unlock(L); } LUA_API void lua_insert (lua_State *L, int idx) { StkId p; StkId q; lua_lock(L); p = index2adr(L, idx); api_checkvalidindex(L, p); for (q = L->top; q>p; q--) setobjs2s(L, q, q-1); setobjs2s(L, p, L->top); lua_unlock(L); } LUA_API void lua_replace (lua_State *L, int idx) { StkId o; lua_lock(L); /* explicit test for incompatible code */ if (idx == LUA_ENVIRONINDEX && L->ci == L->base_ci) luaG_runerror(L, "no calling environment"); api_checknelems(L, 1); o = index2adr(L, idx); api_checkvalidindex(L, o); if (idx == LUA_ENVIRONINDEX) { Closure *func = curr_func(L); api_check(L, ttistable(L->top - 1)); func->c.env = hvalue(L->top - 1); luaC_barrier(L, func, L->top - 1); } else { setobj(L, o, L->top - 1); if (idx < LUA_GLOBALSINDEX) /* function upvalue? */ luaC_barrier(L, curr_func(L), L->top - 1); } L->top--; lua_unlock(L); } LUA_API void lua_pushvalue (lua_State *L, int idx) { lua_lock(L); setobj2s(L, L->top, index2adr(L, idx)); api_incr_top(L); lua_unlock(L); } /* ** access functions (stack -> C) */ LUA_API int lua_type (lua_State *L, int idx) { StkId o = index2adr(L, idx); return (o == luaO_nilobject) ? LUA_TNONE : ttype(o); } LUA_API const char *lua_typename (lua_State *L, int t) { UNUSED(L); return (t == LUA_TNONE) ? "no value" : luaT_typenames[t]; } LUA_API int lua_iscfunction (lua_State *L, int idx) { StkId o = index2adr(L, idx); return iscfunction(o); } LUA_API int lua_isnumber (lua_State *L, int idx) { TValue n; const TValue *o = index2adr(L, idx); return tonumber(o, &n); } LUA_API int lua_isstring (lua_State *L, int idx) { int t = lua_type(L, idx); return (t == LUA_TSTRING || t == LUA_TNUMBER); } LUA_API int lua_isuserdata (lua_State *L, int idx) { const TValue *o = index2adr(L, idx); return (ttisuserdata(o) || ttislightuserdata(o)); } LUA_API int lua_rawequal (lua_State *L, int index1, int index2) { StkId o1 = index2adr(L, index1); StkId o2 = index2adr(L, index2); return (o1 == luaO_nilobject || o2 == luaO_nilobject) ? 0 : luaO_rawequalObj(o1, o2); } LUA_API int lua_equal (lua_State *L, int index1, int index2) { StkId o1, o2; int i; lua_lock(L); /* may call tag method */ o1 = index2adr(L, index1); o2 = index2adr(L, index2); i = (o1 == luaO_nilobject || o2 == luaO_nilobject) ? 0 : equalobj(L, o1, o2); lua_unlock(L); return i; } LUA_API int lua_lessthan (lua_State *L, int index1, int index2) { StkId o1, o2; int i; lua_lock(L); /* may call tag method */ o1 = index2adr(L, index1); o2 = index2adr(L, index2); i = (o1 == luaO_nilobject || o2 == luaO_nilobject) ? 0 : luaV_lessthan(L, o1, o2); lua_unlock(L); return i; } LUA_API lua_Number lua_tonumber (lua_State *L, int idx) { TValue n; const TValue *o = index2adr(L, idx); if (tonumber(o, &n)) return nvalue(o); else return 0; } LUA_API lua_Integer lua_tointeger (lua_State *L, int idx) { TValue n; const TValue *o = index2adr(L, idx); if (tonumber(o, &n)) { lua_Integer res; lua_Number num = nvalue(o); lua_number2integer(res, num); return res; } else return 0; } LUA_API int lua_toboolean (lua_State *L, int idx) { const TValue *o = index2adr(L, idx); return !l_isfalse(o); } LUA_API const char *lua_tolstring (lua_State *L, int idx, size_t *len) { StkId o = index2adr(L, idx); if (!ttisstring(o)) { lua_lock(L); /* `luaV_tostring' may create a new string */ if (!luaV_tostring(L, o)) { /* conversion failed? */ if (len != NULL) *len = 0; lua_unlock(L); return NULL; } luaC_checkGC(L); o = index2adr(L, idx); /* previous call may reallocate the stack */ lua_unlock(L); } if (len != NULL) *len = tsvalue(o)->len; return svalue(o); } LUA_API size_t lua_objlen (lua_State *L, int idx) { StkId o = index2adr(L, idx); switch (ttype(o)) { case LUA_TSTRING: return tsvalue(o)->len; case LUA_TUSERDATA: return uvalue(o)->len; case LUA_TTABLE: return luaH_getn(hvalue(o)); case LUA_TNUMBER: { size_t l; lua_lock(L); /* `luaV_tostring' may create a new string */ l = (luaV_tostring(L, o) ? tsvalue(o)->len : 0); lua_unlock(L); return l; } default: return 0; } } LUA_API lua_CFunction lua_tocfunction (lua_State *L, int idx) { StkId o = index2adr(L, idx); return (!iscfunction(o)) ? NULL : clvalue(o)->c.f; } LUA_API void *lua_touserdata (lua_State *L, int idx) { StkId o = index2adr(L, idx); switch (ttype(o)) { case LUA_TUSERDATA: return (rawuvalue(o) + 1); case LUA_TLIGHTUSERDATA: return pvalue(o); default: return NULL; } } LUA_API lua_State *lua_tothread (lua_State *L, int idx) { StkId o = index2adr(L, idx); return (!ttisthread(o)) ? NULL : thvalue(o); } LUA_API const void *lua_topointer (lua_State *L, int idx) { StkId o = index2adr(L, idx); switch (ttype(o)) { case LUA_TTABLE: return hvalue(o); case LUA_TFUNCTION: return clvalue(o); case LUA_TTHREAD: return thvalue(o); case LUA_TUSERDATA: case LUA_TLIGHTUSERDATA: return lua_touserdata(L, idx); default: return NULL; } } /* ** push functions (C -> stack) */ LUA_API void lua_pushnil (lua_State *L) { lua_lock(L); setnilvalue(L->top); api_incr_top(L); lua_unlock(L); } LUA_API void lua_pushnumber (lua_State *L, lua_Number n) { lua_lock(L); setnvalue(L->top, n); api_incr_top(L); lua_unlock(L); } LUA_API void lua_pushinteger (lua_State *L, lua_Integer n) { lua_lock(L); setnvalue(L->top, cast_num(n)); api_incr_top(L); lua_unlock(L); } LUA_API void lua_pushlstring (lua_State *L, const char *s, size_t len) { lua_lock(L); luaC_checkGC(L); setsvalue2s(L, L->top, luaS_newlstr(L, s, len)); api_incr_top(L); lua_unlock(L); } LUA_API void lua_pushstring (lua_State *L, const char *s) { if (s == NULL) lua_pushnil(L); else lua_pushlstring(L, s, strlen(s)); } LUA_API const char *lua_pushvfstring (lua_State *L, const char *fmt, va_list argp) { const char *ret; lua_lock(L); luaC_checkGC(L); ret = luaO_pushvfstring(L, fmt, argp); lua_unlock(L); return ret; } LUA_API const char *lua_pushfstring (lua_State *L, const char *fmt, ...) { const char *ret; va_list argp; lua_lock(L); luaC_checkGC(L); va_start(argp, fmt); ret = luaO_pushvfstring(L, fmt, argp); va_end(argp); lua_unlock(L); return ret; } LUA_API void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n) { Closure *cl; lua_lock(L); luaC_checkGC(L); api_checknelems(L, n); cl = luaF_newCclosure(L, n, getcurrenv(L)); cl->c.f = fn; L->top -= n; while (n--) setobj2n(L, &cl->c.upvalue[n], L->top+n); setclvalue(L, L->top, cl); lua_assert(iswhite(obj2gco(cl))); api_incr_top(L); lua_unlock(L); } LUA_API void lua_pushboolean (lua_State *L, int b) { lua_lock(L); setbvalue(L->top, (b != 0)); /* ensure that true is 1 */ api_incr_top(L); lua_unlock(L); } LUA_API void lua_pushlightuserdata (lua_State *L, void *p) { lua_lock(L); setpvalue(L->top, p); api_incr_top(L); lua_unlock(L); } LUA_API int lua_pushthread (lua_State *L) { lua_lock(L); setthvalue(L, L->top, L); api_incr_top(L); lua_unlock(L); return (G(L)->mainthread == L); } /* ** get functions (Lua -> stack) */ LUA_API void lua_gettable (lua_State *L, int idx) { StkId t; lua_lock(L); t = index2adr(L, idx); api_checkvalidindex(L, t); luaV_gettable(L, t, L->top - 1, L->top - 1); lua_unlock(L); } LUA_API void lua_getfield (lua_State *L, int idx, const char *k) { StkId t; TValue key; lua_lock(L); t = index2adr(L, idx); api_checkvalidindex(L, t); setsvalue(L, &key, luaS_new(L, k)); luaV_gettable(L, t, &key, L->top); api_incr_top(L); lua_unlock(L); } LUA_API void lua_rawget (lua_State *L, int idx) { StkId t; lua_lock(L); t = index2adr(L, idx); api_check(L, ttistable(t)); setobj2s(L, L->top - 1, luaH_get(hvalue(t), L->top - 1)); lua_unlock(L); } LUA_API void lua_rawgeti (lua_State *L, int idx, int n) { StkId o; lua_lock(L); o = index2adr(L, idx); api_check(L, ttistable(o)); setobj2s(L, L->top, luaH_getnum(hvalue(o), n)); api_incr_top(L); lua_unlock(L); } LUA_API void lua_createtable (lua_State *L, int narray, int nrec) { lua_lock(L); luaC_checkGC(L); sethvalue(L, L->top, luaH_new(L, narray, nrec)); api_incr_top(L); lua_unlock(L); } LUA_API int lua_getmetatable (lua_State *L, int objindex) { const TValue *obj; Table *mt = NULL; int res; lua_lock(L); obj = index2adr(L, objindex); switch (ttype(obj)) { case LUA_TTABLE: mt = hvalue(obj)->metatable; break; case LUA_TUSERDATA: mt = uvalue(obj)->metatable; break; default: mt = G(L)->mt[ttype(obj)]; break; } if (mt == NULL) res = 0; else { sethvalue(L, L->top, mt); api_incr_top(L); res = 1; } lua_unlock(L); return res; } LUA_API void lua_getfenv (lua_State *L, int idx) { StkId o; lua_lock(L); o = index2adr(L, idx); api_checkvalidindex(L, o); switch (ttype(o)) { case LUA_TFUNCTION: sethvalue(L, L->top, clvalue(o)->c.env); break; case LUA_TUSERDATA: sethvalue(L, L->top, uvalue(o)->env); break; case LUA_TTHREAD: setobj2s(L, L->top, gt(thvalue(o))); break; default: setnilvalue(L->top); break; } api_incr_top(L); lua_unlock(L); } /* ** set functions (stack -> Lua) */ LUA_API void lua_settable (lua_State *L, int idx) { StkId t; lua_lock(L); api_checknelems(L, 2); t = index2adr(L, idx); api_checkvalidindex(L, t); luaV_settable(L, t, L->top - 2, L->top - 1); L->top -= 2; /* pop index and value */ lua_unlock(L); } LUA_API void lua_setfield (lua_State *L, int idx, const char *k) { StkId t; TValue key; lua_lock(L); api_checknelems(L, 1); t = index2adr(L, idx); api_checkvalidindex(L, t); setsvalue(L, &key, luaS_new(L, k)); luaV_settable(L, t, &key, L->top - 1); L->top--; /* pop value */ lua_unlock(L); } LUA_API void lua_rawset (lua_State *L, int idx) { StkId t; lua_lock(L); api_checknelems(L, 2); t = index2adr(L, idx); api_check(L, ttistable(t)); setobj2t(L, luaH_set(L, hvalue(t), L->top-2), L->top-1); luaC_barriert(L, hvalue(t), L->top-1); L->top -= 2; lua_unlock(L); } LUA_API void lua_rawseti (lua_State *L, int idx, int n) { StkId o; lua_lock(L); api_checknelems(L, 1); o = index2adr(L, idx); api_check(L, ttistable(o)); setobj2t(L, luaH_setnum(L, hvalue(o), n), L->top-1); luaC_barriert(L, hvalue(o), L->top-1); L->top--; lua_unlock(L); } LUA_API int lua_setmetatable (lua_State *L, int objindex) { TValue *obj; Table *mt; lua_lock(L); api_checknelems(L, 1); obj = index2adr(L, objindex); api_checkvalidindex(L, obj); if (ttisnil(L->top - 1)) mt = NULL; else { api_check(L, ttistable(L->top - 1)); mt = hvalue(L->top - 1); } switch (ttype(obj)) { case LUA_TTABLE: { hvalue(obj)->metatable = mt; if (mt) luaC_objbarriert(L, hvalue(obj), mt); break; } case LUA_TUSERDATA: { uvalue(obj)->metatable = mt; if (mt) luaC_objbarrier(L, rawuvalue(obj), mt); break; } default: { G(L)->mt[ttype(obj)] = mt; break; } } L->top--; lua_unlock(L); return 1; } LUA_API int lua_setfenv (lua_State *L, int idx) { StkId o; int res = 1; lua_lock(L); api_checknelems(L, 1); o = index2adr(L, idx); api_checkvalidindex(L, o); api_check(L, ttistable(L->top - 1)); switch (ttype(o)) { case LUA_TFUNCTION: clvalue(o)->c.env = hvalue(L->top - 1); break; case LUA_TUSERDATA: uvalue(o)->env = hvalue(L->top - 1); break; case LUA_TTHREAD: sethvalue(L, gt(thvalue(o)), hvalue(L->top - 1)); break; default: res = 0; break; } if (res) luaC_objbarrier(L, gcvalue(o), hvalue(L->top - 1)); L->top--; lua_unlock(L); return res; } /* ** `load' and `call' functions (run Lua code) */ #define adjustresults(L,nres) \ { if (nres == LUA_MULTRET && L->top >= L->ci->top) L->ci->top = L->top; } #define checkresults(L,na,nr) \ api_check(L, (nr) == LUA_MULTRET || (L->ci->top - L->top >= (nr) - (na))) LUA_API void lua_call (lua_State *L, int nargs, int nresults) { StkId func; lua_lock(L); api_checknelems(L, nargs+1); checkresults(L, nargs, nresults); func = L->top - (nargs+1); luaD_call(L, func, nresults); adjustresults(L, nresults); lua_unlock(L); } /* ** Execute a protected call. */ struct CallS { /* data to `f_call' */ StkId func; int nresults; }; static void f_call (lua_State *L, void *ud) { struct CallS *c = cast(struct CallS *, ud); luaD_call(L, c->func, c->nresults); } LUA_API int lua_pcall (lua_State *L, int nargs, int nresults, int errfunc) { struct CallS c; int status; ptrdiff_t func; lua_lock(L); api_checknelems(L, nargs+1); checkresults(L, nargs, nresults); if (errfunc == 0) func = 0; else { StkId o = index2adr(L, errfunc); api_checkvalidindex(L, o); func = savestack(L, o); } c.func = L->top - (nargs+1); /* function to be called */ c.nresults = nresults; status = luaD_pcall(L, f_call, &c, savestack(L, c.func), func); adjustresults(L, nresults); lua_unlock(L); return status; } /* ** Execute a protected C call. */ struct CCallS { /* data to `f_Ccall' */ lua_CFunction func; void *ud; }; static void f_Ccall (lua_State *L, void *ud) { struct CCallS *c = cast(struct CCallS *, ud); Closure *cl; cl = luaF_newCclosure(L, 0, getcurrenv(L)); cl->c.f = c->func; setclvalue(L, L->top, cl); /* push function */ api_incr_top(L); setpvalue(L->top, c->ud); /* push only argument */ api_incr_top(L); luaD_call(L, L->top - 2, 0); } LUA_API int lua_cpcall (lua_State *L, lua_CFunction func, void *ud) { struct CCallS c; int status; lua_lock(L); c.func = func; c.ud = ud; status = luaD_pcall(L, f_Ccall, &c, savestack(L, L->top), 0); lua_unlock(L); return status; } LUA_API int lua_load (lua_State *L, lua_Reader reader, void *data, const char *chunkname) { ZIO z; int status; lua_lock(L); if (!chunkname) chunkname = "?"; luaZ_init(L, &z, reader, data); status = luaD_protectedparser(L, &z, chunkname); lua_unlock(L); return status; } LUA_API int lua_dump (lua_State *L, lua_Writer writer, void *data) { int status; TValue *o; lua_lock(L); api_checknelems(L, 1); o = L->top - 1; if (isLfunction(o)) status = luaU_dump(L, clvalue(o)->l.p, writer, data, 0); else status = 1; lua_unlock(L); return status; } LUA_API int lua_status (lua_State *L) { return L->status; } /* ** Garbage-collection function */ LUA_API int lua_gc (lua_State *L, int what, int data) { int res = 0; global_State *g; lua_lock(L); g = G(L); switch (what) { case LUA_GCSTOP: { g->GCthreshold = MAX_LUMEM; break; } case LUA_GCRESTART: { g->GCthreshold = g->totalbytes; break; } case LUA_GCCOLLECT: { luaC_fullgc(L); break; } case LUA_GCCOUNT: { /* GC values are expressed in Kbytes: #bytes/2^10 */ res = cast_int(g->totalbytes >> 10); break; } case LUA_GCCOUNTB: { res = cast_int(g->totalbytes & 0x3ff); break; } case LUA_GCSTEP: { lu_mem a = (cast(lu_mem, data) << 10); if (a <= g->totalbytes) g->GCthreshold = g->totalbytes - a; else g->GCthreshold = 0; while (g->GCthreshold <= g->totalbytes) { luaC_step(L); if (g->gcstate == GCSpause) { /* end of cycle? */ res = 1; /* signal it */ break; } } break; } case LUA_GCSETPAUSE: { res = g->gcpause; g->gcpause = data; break; } case LUA_GCSETSTEPMUL: { res = g->gcstepmul; g->gcstepmul = data; break; } default: res = -1; /* invalid option */ } lua_unlock(L); return res; } /* ** miscellaneous functions */ LUA_API int lua_error (lua_State *L) { lua_lock(L); api_checknelems(L, 1); luaG_errormsg(L); lua_unlock(L); return 0; /* to avoid warnings */ } LUA_API int lua_next (lua_State *L, int idx) { StkId t; int more; lua_lock(L); t = index2adr(L, idx); api_check(L, ttistable(t)); more = luaH_next(L, hvalue(t), L->top - 1); if (more) { api_incr_top(L); } else /* no more elements */ L->top -= 1; /* remove key */ lua_unlock(L); return more; } LUA_API void lua_concat (lua_State *L, int n) { lua_lock(L); api_checknelems(L, n); if (n >= 2) { luaC_checkGC(L); luaV_concat(L, n, cast_int(L->top - L->base) - 1); L->top -= (n-1); } else if (n == 0) { /* push empty string */ setsvalue2s(L, L->top, luaS_newlstr(L, "", 0)); api_incr_top(L); } /* else n == 1; nothing to do */ lua_unlock(L); } LUA_API lua_Alloc lua_getallocf (lua_State *L, void **ud) { lua_Alloc f; lua_lock(L); if (ud) *ud = G(L)->ud; f = G(L)->frealloc; lua_unlock(L); return f; } LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud) { lua_lock(L); G(L)->ud = ud; G(L)->frealloc = f; lua_unlock(L); } LUA_API void *lua_newuserdata (lua_State *L, size_t size) { Udata *u; lua_lock(L); luaC_checkGC(L); u = luaS_newudata(L, size, getcurrenv(L)); setuvalue(L, L->top, u); api_incr_top(L); lua_unlock(L); return u + 1; } static const char *aux_upvalue (StkId fi, int n, TValue **val) { Closure *f; if (!ttisfunction(fi)) return NULL; f = clvalue(fi); if (f->c.isC) { if (!(1 <= n && n <= f->c.nupvalues)) return NULL; *val = &f->c.upvalue[n-1]; return ""; } else { Proto *p = f->l.p; if (!(1 <= n && n <= p->sizeupvalues)) return NULL; *val = f->l.upvals[n-1]->v; return getstr(p->upvalues[n-1]); } } LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n) { const char *name; TValue *val; lua_lock(L); name = aux_upvalue(index2adr(L, funcindex), n, &val); if (name) { setobj2s(L, L->top, val); api_incr_top(L); } lua_unlock(L); return name; } LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n) { const char *name; TValue *val; StkId fi; lua_lock(L); fi = index2adr(L, funcindex); api_checknelems(L, 1); name = aux_upvalue(fi, n, &val); if (name) { L->top--; setobj(L, val, L->top); luaC_barrier(L, clvalue(fi), L->top); } lua_unlock(L); return name; } redis-2.6.16/deps/lua/src/lapi.h000066400000000000000000000004061220734223100163110ustar00rootroot00000000000000/* ** $Id: lapi.h,v 2.2.1.1 2007/12/27 13:02:25 roberto Exp $ ** Auxiliary functions from Lua API ** See Copyright Notice in lua.h */ #ifndef lapi_h #define lapi_h #include "lobject.h" LUAI_FUNC void luaA_pushobject (lua_State *L, const TValue *o); #endif redis-2.6.16/deps/lua/src/lauxlib.c000066400000000000000000000420111220734223100170150ustar00rootroot00000000000000/* ** $Id: lauxlib.c,v 1.159.1.3 2008/01/21 13:20:51 roberto Exp $ ** Auxiliary functions for building Lua libraries ** See Copyright Notice in lua.h */ #include #include #include #include #include #include /* This file uses only the official API of Lua. ** Any function declared here could be written as an application function. */ #define lauxlib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #define FREELIST_REF 0 /* free list of references */ /* convert a stack index to positive */ #define abs_index(L, i) ((i) > 0 || (i) <= LUA_REGISTRYINDEX ? (i) : \ lua_gettop(L) + (i) + 1) /* ** {====================================================== ** Error-report functions ** ======================================================= */ LUALIB_API int luaL_argerror (lua_State *L, int narg, const char *extramsg) { lua_Debug ar; if (!lua_getstack(L, 0, &ar)) /* no stack frame? */ return luaL_error(L, "bad argument #%d (%s)", narg, extramsg); lua_getinfo(L, "n", &ar); if (strcmp(ar.namewhat, "method") == 0) { narg--; /* do not count `self' */ if (narg == 0) /* error is in the self argument itself? */ return luaL_error(L, "calling " LUA_QS " on bad self (%s)", ar.name, extramsg); } if (ar.name == NULL) ar.name = "?"; return luaL_error(L, "bad argument #%d to " LUA_QS " (%s)", narg, ar.name, extramsg); } LUALIB_API int luaL_typerror (lua_State *L, int narg, const char *tname) { const char *msg = lua_pushfstring(L, "%s expected, got %s", tname, luaL_typename(L, narg)); return luaL_argerror(L, narg, msg); } static void tag_error (lua_State *L, int narg, int tag) { luaL_typerror(L, narg, lua_typename(L, tag)); } LUALIB_API void luaL_where (lua_State *L, int level) { lua_Debug ar; if (lua_getstack(L, level, &ar)) { /* check function at level */ lua_getinfo(L, "Sl", &ar); /* get info about it */ if (ar.currentline > 0) { /* is there info? */ lua_pushfstring(L, "%s:%d: ", ar.short_src, ar.currentline); return; } } lua_pushliteral(L, ""); /* else, no information available... */ } LUALIB_API int luaL_error (lua_State *L, const char *fmt, ...) { va_list argp; va_start(argp, fmt); luaL_where(L, 1); lua_pushvfstring(L, fmt, argp); va_end(argp); lua_concat(L, 2); return lua_error(L); } /* }====================================================== */ LUALIB_API int luaL_checkoption (lua_State *L, int narg, const char *def, const char *const lst[]) { const char *name = (def) ? luaL_optstring(L, narg, def) : luaL_checkstring(L, narg); int i; for (i=0; lst[i]; i++) if (strcmp(lst[i], name) == 0) return i; return luaL_argerror(L, narg, lua_pushfstring(L, "invalid option " LUA_QS, name)); } LUALIB_API int luaL_newmetatable (lua_State *L, const char *tname) { lua_getfield(L, LUA_REGISTRYINDEX, tname); /* get registry.name */ if (!lua_isnil(L, -1)) /* name already in use? */ return 0; /* leave previous value on top, but return 0 */ lua_pop(L, 1); lua_newtable(L); /* create metatable */ lua_pushvalue(L, -1); lua_setfield(L, LUA_REGISTRYINDEX, tname); /* registry.name = metatable */ return 1; } LUALIB_API void *luaL_checkudata (lua_State *L, int ud, const char *tname) { void *p = lua_touserdata(L, ud); if (p != NULL) { /* value is a userdata? */ if (lua_getmetatable(L, ud)) { /* does it have a metatable? */ lua_getfield(L, LUA_REGISTRYINDEX, tname); /* get correct metatable */ if (lua_rawequal(L, -1, -2)) { /* does it have the correct mt? */ lua_pop(L, 2); /* remove both metatables */ return p; } } } luaL_typerror(L, ud, tname); /* else error */ return NULL; /* to avoid warnings */ } LUALIB_API void luaL_checkstack (lua_State *L, int space, const char *mes) { if (!lua_checkstack(L, space)) luaL_error(L, "stack overflow (%s)", mes); } LUALIB_API void luaL_checktype (lua_State *L, int narg, int t) { if (lua_type(L, narg) != t) tag_error(L, narg, t); } LUALIB_API void luaL_checkany (lua_State *L, int narg) { if (lua_type(L, narg) == LUA_TNONE) luaL_argerror(L, narg, "value expected"); } LUALIB_API const char *luaL_checklstring (lua_State *L, int narg, size_t *len) { const char *s = lua_tolstring(L, narg, len); if (!s) tag_error(L, narg, LUA_TSTRING); return s; } LUALIB_API const char *luaL_optlstring (lua_State *L, int narg, const char *def, size_t *len) { if (lua_isnoneornil(L, narg)) { if (len) *len = (def ? strlen(def) : 0); return def; } else return luaL_checklstring(L, narg, len); } LUALIB_API lua_Number luaL_checknumber (lua_State *L, int narg) { lua_Number d = lua_tonumber(L, narg); if (d == 0 && !lua_isnumber(L, narg)) /* avoid extra test when d is not 0 */ tag_error(L, narg, LUA_TNUMBER); return d; } LUALIB_API lua_Number luaL_optnumber (lua_State *L, int narg, lua_Number def) { return luaL_opt(L, luaL_checknumber, narg, def); } LUALIB_API lua_Integer luaL_checkinteger (lua_State *L, int narg) { lua_Integer d = lua_tointeger(L, narg); if (d == 0 && !lua_isnumber(L, narg)) /* avoid extra test when d is not 0 */ tag_error(L, narg, LUA_TNUMBER); return d; } LUALIB_API lua_Integer luaL_optinteger (lua_State *L, int narg, lua_Integer def) { return luaL_opt(L, luaL_checkinteger, narg, def); } LUALIB_API int luaL_getmetafield (lua_State *L, int obj, const char *event) { if (!lua_getmetatable(L, obj)) /* no metatable? */ return 0; lua_pushstring(L, event); lua_rawget(L, -2); if (lua_isnil(L, -1)) { lua_pop(L, 2); /* remove metatable and metafield */ return 0; } else { lua_remove(L, -2); /* remove only metatable */ return 1; } } LUALIB_API int luaL_callmeta (lua_State *L, int obj, const char *event) { obj = abs_index(L, obj); if (!luaL_getmetafield(L, obj, event)) /* no metafield? */ return 0; lua_pushvalue(L, obj); lua_call(L, 1, 1); return 1; } LUALIB_API void (luaL_register) (lua_State *L, const char *libname, const luaL_Reg *l) { luaI_openlib(L, libname, l, 0); } static int libsize (const luaL_Reg *l) { int size = 0; for (; l->name; l++) size++; return size; } LUALIB_API void luaI_openlib (lua_State *L, const char *libname, const luaL_Reg *l, int nup) { if (libname) { int size = libsize(l); /* check whether lib already exists */ luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 1); lua_getfield(L, -1, libname); /* get _LOADED[libname] */ if (!lua_istable(L, -1)) { /* not found? */ lua_pop(L, 1); /* remove previous result */ /* try global variable (and create one if it does not exist) */ if (luaL_findtable(L, LUA_GLOBALSINDEX, libname, size) != NULL) luaL_error(L, "name conflict for module " LUA_QS, libname); lua_pushvalue(L, -1); lua_setfield(L, -3, libname); /* _LOADED[libname] = new table */ } lua_remove(L, -2); /* remove _LOADED table */ lua_insert(L, -(nup+1)); /* move library table to below upvalues */ } for (; l->name; l++) { int i; for (i=0; ifunc, nup); lua_setfield(L, -(nup+2), l->name); } lua_pop(L, nup); /* remove upvalues */ } /* ** {====================================================== ** getn-setn: size for arrays ** ======================================================= */ #if defined(LUA_COMPAT_GETN) static int checkint (lua_State *L, int topop) { int n = (lua_type(L, -1) == LUA_TNUMBER) ? lua_tointeger(L, -1) : -1; lua_pop(L, topop); return n; } static void getsizes (lua_State *L) { lua_getfield(L, LUA_REGISTRYINDEX, "LUA_SIZES"); if (lua_isnil(L, -1)) { /* no `size' table? */ lua_pop(L, 1); /* remove nil */ lua_newtable(L); /* create it */ lua_pushvalue(L, -1); /* `size' will be its own metatable */ lua_setmetatable(L, -2); lua_pushliteral(L, "kv"); lua_setfield(L, -2, "__mode"); /* metatable(N).__mode = "kv" */ lua_pushvalue(L, -1); lua_setfield(L, LUA_REGISTRYINDEX, "LUA_SIZES"); /* store in register */ } } LUALIB_API void luaL_setn (lua_State *L, int t, int n) { t = abs_index(L, t); lua_pushliteral(L, "n"); lua_rawget(L, t); if (checkint(L, 1) >= 0) { /* is there a numeric field `n'? */ lua_pushliteral(L, "n"); /* use it */ lua_pushinteger(L, n); lua_rawset(L, t); } else { /* use `sizes' */ getsizes(L); lua_pushvalue(L, t); lua_pushinteger(L, n); lua_rawset(L, -3); /* sizes[t] = n */ lua_pop(L, 1); /* remove `sizes' */ } } LUALIB_API int luaL_getn (lua_State *L, int t) { int n; t = abs_index(L, t); lua_pushliteral(L, "n"); /* try t.n */ lua_rawget(L, t); if ((n = checkint(L, 1)) >= 0) return n; getsizes(L); /* else try sizes[t] */ lua_pushvalue(L, t); lua_rawget(L, -2); if ((n = checkint(L, 2)) >= 0) return n; return (int)lua_objlen(L, t); } #endif /* }====================================================== */ LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p, const char *r) { const char *wild; size_t l = strlen(p); luaL_Buffer b; luaL_buffinit(L, &b); while ((wild = strstr(s, p)) != NULL) { luaL_addlstring(&b, s, wild - s); /* push prefix */ luaL_addstring(&b, r); /* push replacement in place of pattern */ s = wild + l; /* continue after `p' */ } luaL_addstring(&b, s); /* push last suffix */ luaL_pushresult(&b); return lua_tostring(L, -1); } LUALIB_API const char *luaL_findtable (lua_State *L, int idx, const char *fname, int szhint) { const char *e; lua_pushvalue(L, idx); do { e = strchr(fname, '.'); if (e == NULL) e = fname + strlen(fname); lua_pushlstring(L, fname, e - fname); lua_rawget(L, -2); if (lua_isnil(L, -1)) { /* no such field? */ lua_pop(L, 1); /* remove this nil */ lua_createtable(L, 0, (*e == '.' ? 1 : szhint)); /* new table for field */ lua_pushlstring(L, fname, e - fname); lua_pushvalue(L, -2); lua_settable(L, -4); /* set new table into field */ } else if (!lua_istable(L, -1)) { /* field has a non-table value? */ lua_pop(L, 2); /* remove table and value */ return fname; /* return problematic part of the name */ } lua_remove(L, -2); /* remove previous table */ fname = e + 1; } while (*e == '.'); return NULL; } /* ** {====================================================== ** Generic Buffer manipulation ** ======================================================= */ #define bufflen(B) ((B)->p - (B)->buffer) #define bufffree(B) ((size_t)(LUAL_BUFFERSIZE - bufflen(B))) #define LIMIT (LUA_MINSTACK/2) static int emptybuffer (luaL_Buffer *B) { size_t l = bufflen(B); if (l == 0) return 0; /* put nothing on stack */ else { lua_pushlstring(B->L, B->buffer, l); B->p = B->buffer; B->lvl++; return 1; } } static void adjuststack (luaL_Buffer *B) { if (B->lvl > 1) { lua_State *L = B->L; int toget = 1; /* number of levels to concat */ size_t toplen = lua_strlen(L, -1); do { size_t l = lua_strlen(L, -(toget+1)); if (B->lvl - toget + 1 >= LIMIT || toplen > l) { toplen += l; toget++; } else break; } while (toget < B->lvl); lua_concat(L, toget); B->lvl = B->lvl - toget + 1; } } LUALIB_API char *luaL_prepbuffer (luaL_Buffer *B) { if (emptybuffer(B)) adjuststack(B); return B->buffer; } LUALIB_API void luaL_addlstring (luaL_Buffer *B, const char *s, size_t l) { while (l--) luaL_addchar(B, *s++); } LUALIB_API void luaL_addstring (luaL_Buffer *B, const char *s) { luaL_addlstring(B, s, strlen(s)); } LUALIB_API void luaL_pushresult (luaL_Buffer *B) { emptybuffer(B); lua_concat(B->L, B->lvl); B->lvl = 1; } LUALIB_API void luaL_addvalue (luaL_Buffer *B) { lua_State *L = B->L; size_t vl; const char *s = lua_tolstring(L, -1, &vl); if (vl <= bufffree(B)) { /* fit into buffer? */ memcpy(B->p, s, vl); /* put it there */ B->p += vl; lua_pop(L, 1); /* remove from stack */ } else { if (emptybuffer(B)) lua_insert(L, -2); /* put buffer before new value */ B->lvl++; /* add new value into B stack */ adjuststack(B); } } LUALIB_API void luaL_buffinit (lua_State *L, luaL_Buffer *B) { B->L = L; B->p = B->buffer; B->lvl = 0; } /* }====================================================== */ LUALIB_API int luaL_ref (lua_State *L, int t) { int ref; t = abs_index(L, t); if (lua_isnil(L, -1)) { lua_pop(L, 1); /* remove from stack */ return LUA_REFNIL; /* `nil' has a unique fixed reference */ } lua_rawgeti(L, t, FREELIST_REF); /* get first free element */ ref = (int)lua_tointeger(L, -1); /* ref = t[FREELIST_REF] */ lua_pop(L, 1); /* remove it from stack */ if (ref != 0) { /* any free element? */ lua_rawgeti(L, t, ref); /* remove it from list */ lua_rawseti(L, t, FREELIST_REF); /* (t[FREELIST_REF] = t[ref]) */ } else { /* no free elements */ ref = (int)lua_objlen(L, t); ref++; /* create new reference */ } lua_rawseti(L, t, ref); return ref; } LUALIB_API void luaL_unref (lua_State *L, int t, int ref) { if (ref >= 0) { t = abs_index(L, t); lua_rawgeti(L, t, FREELIST_REF); lua_rawseti(L, t, ref); /* t[ref] = t[FREELIST_REF] */ lua_pushinteger(L, ref); lua_rawseti(L, t, FREELIST_REF); /* t[FREELIST_REF] = ref */ } } /* ** {====================================================== ** Load functions ** ======================================================= */ typedef struct LoadF { int extraline; FILE *f; char buff[LUAL_BUFFERSIZE]; } LoadF; static const char *getF (lua_State *L, void *ud, size_t *size) { LoadF *lf = (LoadF *)ud; (void)L; if (lf->extraline) { lf->extraline = 0; *size = 1; return "\n"; } if (feof(lf->f)) return NULL; *size = fread(lf->buff, 1, sizeof(lf->buff), lf->f); return (*size > 0) ? lf->buff : NULL; } static int errfile (lua_State *L, const char *what, int fnameindex) { const char *serr = strerror(errno); const char *filename = lua_tostring(L, fnameindex) + 1; lua_pushfstring(L, "cannot %s %s: %s", what, filename, serr); lua_remove(L, fnameindex); return LUA_ERRFILE; } LUALIB_API int luaL_loadfile (lua_State *L, const char *filename) { LoadF lf; int status, readstatus; int c; int fnameindex = lua_gettop(L) + 1; /* index of filename on the stack */ lf.extraline = 0; if (filename == NULL) { lua_pushliteral(L, "=stdin"); lf.f = stdin; } else { lua_pushfstring(L, "@%s", filename); lf.f = fopen(filename, "r"); if (lf.f == NULL) return errfile(L, "open", fnameindex); } c = getc(lf.f); if (c == '#') { /* Unix exec. file? */ lf.extraline = 1; while ((c = getc(lf.f)) != EOF && c != '\n') ; /* skip first line */ if (c == '\n') c = getc(lf.f); } if (c == LUA_SIGNATURE[0] && filename) { /* binary file? */ lf.f = freopen(filename, "rb", lf.f); /* reopen in binary mode */ if (lf.f == NULL) return errfile(L, "reopen", fnameindex); /* skip eventual `#!...' */ while ((c = getc(lf.f)) != EOF && c != LUA_SIGNATURE[0]) ; lf.extraline = 0; } ungetc(c, lf.f); status = lua_load(L, getF, &lf, lua_tostring(L, -1)); readstatus = ferror(lf.f); if (filename) fclose(lf.f); /* close file (even in case of errors) */ if (readstatus) { lua_settop(L, fnameindex); /* ignore results from `lua_load' */ return errfile(L, "read", fnameindex); } lua_remove(L, fnameindex); return status; } typedef struct LoadS { const char *s; size_t size; } LoadS; static const char *getS (lua_State *L, void *ud, size_t *size) { LoadS *ls = (LoadS *)ud; (void)L; if (ls->size == 0) return NULL; *size = ls->size; ls->size = 0; return ls->s; } LUALIB_API int luaL_loadbuffer (lua_State *L, const char *buff, size_t size, const char *name) { LoadS ls; ls.s = buff; ls.size = size; return lua_load(L, getS, &ls, name); } LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s) { return luaL_loadbuffer(L, s, strlen(s), s); } /* }====================================================== */ static void *l_alloc (void *ud, void *ptr, size_t osize, size_t nsize) { (void)ud; (void)osize; if (nsize == 0) { free(ptr); return NULL; } else return realloc(ptr, nsize); } static int panic (lua_State *L) { (void)L; /* to avoid warnings */ fprintf(stderr, "PANIC: unprotected error in call to Lua API (%s)\n", lua_tostring(L, -1)); return 0; } LUALIB_API lua_State *luaL_newstate (void) { lua_State *L = lua_newstate(l_alloc, NULL); if (L) lua_atpanic(L, &panic); return L; } redis-2.6.16/deps/lua/src/lauxlib.h000066400000000000000000000132211220734223100170230ustar00rootroot00000000000000/* ** $Id: lauxlib.h,v 1.88.1.1 2007/12/27 13:02:25 roberto Exp $ ** Auxiliary functions for building Lua libraries ** See Copyright Notice in lua.h */ #ifndef lauxlib_h #define lauxlib_h #include #include #include "lua.h" #if defined(LUA_COMPAT_GETN) LUALIB_API int (luaL_getn) (lua_State *L, int t); LUALIB_API void (luaL_setn) (lua_State *L, int t, int n); #else #define luaL_getn(L,i) ((int)lua_objlen(L, i)) #define luaL_setn(L,i,j) ((void)0) /* no op! */ #endif #if defined(LUA_COMPAT_OPENLIB) #define luaI_openlib luaL_openlib #endif /* extra error code for `luaL_load' */ #define LUA_ERRFILE (LUA_ERRERR+1) typedef struct luaL_Reg { const char *name; lua_CFunction func; } luaL_Reg; LUALIB_API void (luaI_openlib) (lua_State *L, const char *libname, const luaL_Reg *l, int nup); LUALIB_API void (luaL_register) (lua_State *L, const char *libname, const luaL_Reg *l); LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e); LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e); LUALIB_API int (luaL_typerror) (lua_State *L, int narg, const char *tname); LUALIB_API int (luaL_argerror) (lua_State *L, int numarg, const char *extramsg); LUALIB_API const char *(luaL_checklstring) (lua_State *L, int numArg, size_t *l); LUALIB_API const char *(luaL_optlstring) (lua_State *L, int numArg, const char *def, size_t *l); LUALIB_API lua_Number (luaL_checknumber) (lua_State *L, int numArg); LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int nArg, lua_Number def); LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg); LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg, lua_Integer def); LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg); LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t); LUALIB_API void (luaL_checkany) (lua_State *L, int narg); LUALIB_API int (luaL_newmetatable) (lua_State *L, const char *tname); LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname); LUALIB_API void (luaL_where) (lua_State *L, int lvl); LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...); LUALIB_API int (luaL_checkoption) (lua_State *L, int narg, const char *def, const char *const lst[]); LUALIB_API int (luaL_ref) (lua_State *L, int t); LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref); LUALIB_API int (luaL_loadfile) (lua_State *L, const char *filename); LUALIB_API int (luaL_loadbuffer) (lua_State *L, const char *buff, size_t sz, const char *name); LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s); LUALIB_API lua_State *(luaL_newstate) (void); LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p, const char *r); LUALIB_API const char *(luaL_findtable) (lua_State *L, int idx, const char *fname, int szhint); /* ** =============================================================== ** some useful macros ** =============================================================== */ #define luaL_argcheck(L, cond,numarg,extramsg) \ ((void)((cond) || luaL_argerror(L, (numarg), (extramsg)))) #define luaL_checkstring(L,n) (luaL_checklstring(L, (n), NULL)) #define luaL_optstring(L,n,d) (luaL_optlstring(L, (n), (d), NULL)) #define luaL_checkint(L,n) ((int)luaL_checkinteger(L, (n))) #define luaL_optint(L,n,d) ((int)luaL_optinteger(L, (n), (d))) #define luaL_checklong(L,n) ((long)luaL_checkinteger(L, (n))) #define luaL_optlong(L,n,d) ((long)luaL_optinteger(L, (n), (d))) #define luaL_typename(L,i) lua_typename(L, lua_type(L,(i))) #define luaL_dofile(L, fn) \ (luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0)) #define luaL_dostring(L, s) \ (luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0)) #define luaL_getmetatable(L,n) (lua_getfield(L, LUA_REGISTRYINDEX, (n))) #define luaL_opt(L,f,n,d) (lua_isnoneornil(L,(n)) ? (d) : f(L,(n))) /* ** {====================================================== ** Generic Buffer manipulation ** ======================================================= */ typedef struct luaL_Buffer { char *p; /* current position in buffer */ int lvl; /* number of strings in the stack (level) */ lua_State *L; char buffer[LUAL_BUFFERSIZE]; } luaL_Buffer; #define luaL_addchar(B,c) \ ((void)((B)->p < ((B)->buffer+LUAL_BUFFERSIZE) || luaL_prepbuffer(B)), \ (*(B)->p++ = (char)(c))) /* compatibility only */ #define luaL_putchar(B,c) luaL_addchar(B,c) #define luaL_addsize(B,n) ((B)->p += (n)) LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B); LUALIB_API char *(luaL_prepbuffer) (luaL_Buffer *B); LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l); LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s); LUALIB_API void (luaL_addvalue) (luaL_Buffer *B); LUALIB_API void (luaL_pushresult) (luaL_Buffer *B); /* }====================================================== */ /* compatibility with ref system */ /* pre-defined references */ #define LUA_NOREF (-2) #define LUA_REFNIL (-1) #define lua_ref(L,lock) ((lock) ? luaL_ref(L, LUA_REGISTRYINDEX) : \ (lua_pushstring(L, "unlocked references are obsolete"), lua_error(L), 0)) #define lua_unref(L,ref) luaL_unref(L, LUA_REGISTRYINDEX, (ref)) #define lua_getref(L,ref) lua_rawgeti(L, LUA_REGISTRYINDEX, (ref)) #define luaL_reg luaL_Reg #endif redis-2.6.16/deps/lua/src/lbaselib.c000066400000000000000000000412251220734223100171400ustar00rootroot00000000000000/* ** $Id: lbaselib.c,v 1.191.1.6 2008/02/14 16:46:22 roberto Exp $ ** Basic library ** See Copyright Notice in lua.h */ #include #include #include #include #define lbaselib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #include "lualib.h" /* ** If your system does not support `stdout', you can just remove this function. ** If you need, you can define your own `print' function, following this ** model but changing `fputs' to put the strings at a proper place ** (a console window or a log file, for instance). */ static int luaB_print (lua_State *L) { int n = lua_gettop(L); /* number of arguments */ int i; lua_getglobal(L, "tostring"); for (i=1; i<=n; i++) { const char *s; lua_pushvalue(L, -1); /* function to be called */ lua_pushvalue(L, i); /* value to print */ lua_call(L, 1, 1); s = lua_tostring(L, -1); /* get result */ if (s == NULL) return luaL_error(L, LUA_QL("tostring") " must return a string to " LUA_QL("print")); if (i>1) fputs("\t", stdout); fputs(s, stdout); lua_pop(L, 1); /* pop result */ } fputs("\n", stdout); return 0; } static int luaB_tonumber (lua_State *L) { int base = luaL_optint(L, 2, 10); if (base == 10) { /* standard conversion */ luaL_checkany(L, 1); if (lua_isnumber(L, 1)) { lua_pushnumber(L, lua_tonumber(L, 1)); return 1; } } else { const char *s1 = luaL_checkstring(L, 1); char *s2; unsigned long n; luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range"); n = strtoul(s1, &s2, base); if (s1 != s2) { /* at least one valid digit? */ while (isspace((unsigned char)(*s2))) s2++; /* skip trailing spaces */ if (*s2 == '\0') { /* no invalid trailing characters? */ lua_pushnumber(L, (lua_Number)n); return 1; } } } lua_pushnil(L); /* else not a number */ return 1; } static int luaB_error (lua_State *L) { int level = luaL_optint(L, 2, 1); lua_settop(L, 1); if (lua_isstring(L, 1) && level > 0) { /* add extra information? */ luaL_where(L, level); lua_pushvalue(L, 1); lua_concat(L, 2); } return lua_error(L); } static int luaB_getmetatable (lua_State *L) { luaL_checkany(L, 1); if (!lua_getmetatable(L, 1)) { lua_pushnil(L); return 1; /* no metatable */ } luaL_getmetafield(L, 1, "__metatable"); return 1; /* returns either __metatable field (if present) or metatable */ } static int luaB_setmetatable (lua_State *L) { int t = lua_type(L, 2); luaL_checktype(L, 1, LUA_TTABLE); luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2, "nil or table expected"); if (luaL_getmetafield(L, 1, "__metatable")) luaL_error(L, "cannot change a protected metatable"); lua_settop(L, 2); lua_setmetatable(L, 1); return 1; } static void getfunc (lua_State *L, int opt) { if (lua_isfunction(L, 1)) lua_pushvalue(L, 1); else { lua_Debug ar; int level = opt ? luaL_optint(L, 1, 1) : luaL_checkint(L, 1); luaL_argcheck(L, level >= 0, 1, "level must be non-negative"); if (lua_getstack(L, level, &ar) == 0) luaL_argerror(L, 1, "invalid level"); lua_getinfo(L, "f", &ar); if (lua_isnil(L, -1)) luaL_error(L, "no function environment for tail call at level %d", level); } } static int luaB_getfenv (lua_State *L) { getfunc(L, 1); if (lua_iscfunction(L, -1)) /* is a C function? */ lua_pushvalue(L, LUA_GLOBALSINDEX); /* return the thread's global env. */ else lua_getfenv(L, -1); return 1; } static int luaB_setfenv (lua_State *L) { luaL_checktype(L, 2, LUA_TTABLE); getfunc(L, 0); lua_pushvalue(L, 2); if (lua_isnumber(L, 1) && lua_tonumber(L, 1) == 0) { /* change environment of current thread */ lua_pushthread(L); lua_insert(L, -2); lua_setfenv(L, -2); return 0; } else if (lua_iscfunction(L, -2) || lua_setfenv(L, -2) == 0) luaL_error(L, LUA_QL("setfenv") " cannot change environment of given object"); return 1; } static int luaB_rawequal (lua_State *L) { luaL_checkany(L, 1); luaL_checkany(L, 2); lua_pushboolean(L, lua_rawequal(L, 1, 2)); return 1; } static int luaB_rawget (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); luaL_checkany(L, 2); lua_settop(L, 2); lua_rawget(L, 1); return 1; } static int luaB_rawset (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); luaL_checkany(L, 2); luaL_checkany(L, 3); lua_settop(L, 3); lua_rawset(L, 1); return 1; } static int luaB_gcinfo (lua_State *L) { lua_pushinteger(L, lua_getgccount(L)); return 1; } static int luaB_collectgarbage (lua_State *L) { static const char *const opts[] = {"stop", "restart", "collect", "count", "step", "setpause", "setstepmul", NULL}; static const int optsnum[] = {LUA_GCSTOP, LUA_GCRESTART, LUA_GCCOLLECT, LUA_GCCOUNT, LUA_GCSTEP, LUA_GCSETPAUSE, LUA_GCSETSTEPMUL}; int o = luaL_checkoption(L, 1, "collect", opts); int ex = luaL_optint(L, 2, 0); int res = lua_gc(L, optsnum[o], ex); switch (optsnum[o]) { case LUA_GCCOUNT: { int b = lua_gc(L, LUA_GCCOUNTB, 0); lua_pushnumber(L, res + ((lua_Number)b/1024)); return 1; } case LUA_GCSTEP: { lua_pushboolean(L, res); return 1; } default: { lua_pushnumber(L, res); return 1; } } } static int luaB_type (lua_State *L) { luaL_checkany(L, 1); lua_pushstring(L, luaL_typename(L, 1)); return 1; } static int luaB_next (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); lua_settop(L, 2); /* create a 2nd argument if there isn't one */ if (lua_next(L, 1)) return 2; else { lua_pushnil(L); return 1; } } static int luaB_pairs (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); lua_pushvalue(L, lua_upvalueindex(1)); /* return generator, */ lua_pushvalue(L, 1); /* state, */ lua_pushnil(L); /* and initial value */ return 3; } static int ipairsaux (lua_State *L) { int i = luaL_checkint(L, 2); luaL_checktype(L, 1, LUA_TTABLE); i++; /* next value */ lua_pushinteger(L, i); lua_rawgeti(L, 1, i); return (lua_isnil(L, -1)) ? 0 : 2; } static int luaB_ipairs (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); lua_pushvalue(L, lua_upvalueindex(1)); /* return generator, */ lua_pushvalue(L, 1); /* state, */ lua_pushinteger(L, 0); /* and initial value */ return 3; } static int load_aux (lua_State *L, int status) { if (status == 0) /* OK? */ return 1; else { lua_pushnil(L); lua_insert(L, -2); /* put before error message */ return 2; /* return nil plus error message */ } } static int luaB_loadstring (lua_State *L) { size_t l; const char *s = luaL_checklstring(L, 1, &l); const char *chunkname = luaL_optstring(L, 2, s); return load_aux(L, luaL_loadbuffer(L, s, l, chunkname)); } static int luaB_loadfile (lua_State *L) { const char *fname = luaL_optstring(L, 1, NULL); return load_aux(L, luaL_loadfile(L, fname)); } /* ** Reader for generic `load' function: `lua_load' uses the ** stack for internal stuff, so the reader cannot change the ** stack top. Instead, it keeps its resulting string in a ** reserved slot inside the stack. */ static const char *generic_reader (lua_State *L, void *ud, size_t *size) { (void)ud; /* to avoid warnings */ luaL_checkstack(L, 2, "too many nested functions"); lua_pushvalue(L, 1); /* get function */ lua_call(L, 0, 1); /* call it */ if (lua_isnil(L, -1)) { *size = 0; return NULL; } else if (lua_isstring(L, -1)) { lua_replace(L, 3); /* save string in a reserved stack slot */ return lua_tolstring(L, 3, size); } else luaL_error(L, "reader function must return a string"); return NULL; /* to avoid warnings */ } static int luaB_load (lua_State *L) { int status; const char *cname = luaL_optstring(L, 2, "=(load)"); luaL_checktype(L, 1, LUA_TFUNCTION); lua_settop(L, 3); /* function, eventual name, plus one reserved slot */ status = lua_load(L, generic_reader, NULL, cname); return load_aux(L, status); } static int luaB_dofile (lua_State *L) { const char *fname = luaL_optstring(L, 1, NULL); int n = lua_gettop(L); if (luaL_loadfile(L, fname) != 0) lua_error(L); lua_call(L, 0, LUA_MULTRET); return lua_gettop(L) - n; } static int luaB_assert (lua_State *L) { luaL_checkany(L, 1); if (!lua_toboolean(L, 1)) return luaL_error(L, "%s", luaL_optstring(L, 2, "assertion failed!")); return lua_gettop(L); } static int luaB_unpack (lua_State *L) { int i, e, n; luaL_checktype(L, 1, LUA_TTABLE); i = luaL_optint(L, 2, 1); e = luaL_opt(L, luaL_checkint, 3, luaL_getn(L, 1)); if (i > e) return 0; /* empty range */ n = e - i + 1; /* number of elements */ if (n <= 0 || !lua_checkstack(L, n)) /* n <= 0 means arith. overflow */ return luaL_error(L, "too many results to unpack"); lua_rawgeti(L, 1, i); /* push arg[i] (avoiding overflow problems) */ while (i++ < e) /* push arg[i + 1...e] */ lua_rawgeti(L, 1, i); return n; } static int luaB_select (lua_State *L) { int n = lua_gettop(L); if (lua_type(L, 1) == LUA_TSTRING && *lua_tostring(L, 1) == '#') { lua_pushinteger(L, n-1); return 1; } else { int i = luaL_checkint(L, 1); if (i < 0) i = n + i; else if (i > n) i = n; luaL_argcheck(L, 1 <= i, 1, "index out of range"); return n - i; } } static int luaB_pcall (lua_State *L) { int status; luaL_checkany(L, 1); status = lua_pcall(L, lua_gettop(L) - 1, LUA_MULTRET, 0); lua_pushboolean(L, (status == 0)); lua_insert(L, 1); return lua_gettop(L); /* return status + all results */ } static int luaB_xpcall (lua_State *L) { int status; luaL_checkany(L, 2); lua_settop(L, 2); lua_insert(L, 1); /* put error function under function to be called */ status = lua_pcall(L, 0, LUA_MULTRET, 1); lua_pushboolean(L, (status == 0)); lua_replace(L, 1); return lua_gettop(L); /* return status + all results */ } static int luaB_tostring (lua_State *L) { luaL_checkany(L, 1); if (luaL_callmeta(L, 1, "__tostring")) /* is there a metafield? */ return 1; /* use its value */ switch (lua_type(L, 1)) { case LUA_TNUMBER: lua_pushstring(L, lua_tostring(L, 1)); break; case LUA_TSTRING: lua_pushvalue(L, 1); break; case LUA_TBOOLEAN: lua_pushstring(L, (lua_toboolean(L, 1) ? "true" : "false")); break; case LUA_TNIL: lua_pushliteral(L, "nil"); break; default: lua_pushfstring(L, "%s: %p", luaL_typename(L, 1), lua_topointer(L, 1)); break; } return 1; } static int luaB_newproxy (lua_State *L) { lua_settop(L, 1); lua_newuserdata(L, 0); /* create proxy */ if (lua_toboolean(L, 1) == 0) return 1; /* no metatable */ else if (lua_isboolean(L, 1)) { lua_newtable(L); /* create a new metatable `m' ... */ lua_pushvalue(L, -1); /* ... and mark `m' as a valid metatable */ lua_pushboolean(L, 1); lua_rawset(L, lua_upvalueindex(1)); /* weaktable[m] = true */ } else { int validproxy = 0; /* to check if weaktable[metatable(u)] == true */ if (lua_getmetatable(L, 1)) { lua_rawget(L, lua_upvalueindex(1)); validproxy = lua_toboolean(L, -1); lua_pop(L, 1); /* remove value */ } luaL_argcheck(L, validproxy, 1, "boolean or proxy expected"); lua_getmetatable(L, 1); /* metatable is valid; get it */ } lua_setmetatable(L, 2); return 1; } static const luaL_Reg base_funcs[] = { {"assert", luaB_assert}, {"collectgarbage", luaB_collectgarbage}, {"dofile", luaB_dofile}, {"error", luaB_error}, {"gcinfo", luaB_gcinfo}, {"getfenv", luaB_getfenv}, {"getmetatable", luaB_getmetatable}, {"loadfile", luaB_loadfile}, {"load", luaB_load}, {"loadstring", luaB_loadstring}, {"next", luaB_next}, {"pcall", luaB_pcall}, {"print", luaB_print}, {"rawequal", luaB_rawequal}, {"rawget", luaB_rawget}, {"rawset", luaB_rawset}, {"select", luaB_select}, {"setfenv", luaB_setfenv}, {"setmetatable", luaB_setmetatable}, {"tonumber", luaB_tonumber}, {"tostring", luaB_tostring}, {"type", luaB_type}, {"unpack", luaB_unpack}, {"xpcall", luaB_xpcall}, {NULL, NULL} }; /* ** {====================================================== ** Coroutine library ** ======================================================= */ #define CO_RUN 0 /* running */ #define CO_SUS 1 /* suspended */ #define CO_NOR 2 /* 'normal' (it resumed another coroutine) */ #define CO_DEAD 3 static const char *const statnames[] = {"running", "suspended", "normal", "dead"}; static int costatus (lua_State *L, lua_State *co) { if (L == co) return CO_RUN; switch (lua_status(co)) { case LUA_YIELD: return CO_SUS; case 0: { lua_Debug ar; if (lua_getstack(co, 0, &ar) > 0) /* does it have frames? */ return CO_NOR; /* it is running */ else if (lua_gettop(co) == 0) return CO_DEAD; else return CO_SUS; /* initial state */ } default: /* some error occured */ return CO_DEAD; } } static int luaB_costatus (lua_State *L) { lua_State *co = lua_tothread(L, 1); luaL_argcheck(L, co, 1, "coroutine expected"); lua_pushstring(L, statnames[costatus(L, co)]); return 1; } static int auxresume (lua_State *L, lua_State *co, int narg) { int status = costatus(L, co); if (!lua_checkstack(co, narg)) luaL_error(L, "too many arguments to resume"); if (status != CO_SUS) { lua_pushfstring(L, "cannot resume %s coroutine", statnames[status]); return -1; /* error flag */ } lua_xmove(L, co, narg); lua_setlevel(L, co); status = lua_resume(co, narg); if (status == 0 || status == LUA_YIELD) { int nres = lua_gettop(co); if (!lua_checkstack(L, nres + 1)) luaL_error(L, "too many results to resume"); lua_xmove(co, L, nres); /* move yielded values */ return nres; } else { lua_xmove(co, L, 1); /* move error message */ return -1; /* error flag */ } } static int luaB_coresume (lua_State *L) { lua_State *co = lua_tothread(L, 1); int r; luaL_argcheck(L, co, 1, "coroutine expected"); r = auxresume(L, co, lua_gettop(L) - 1); if (r < 0) { lua_pushboolean(L, 0); lua_insert(L, -2); return 2; /* return false + error message */ } else { lua_pushboolean(L, 1); lua_insert(L, -(r + 1)); return r + 1; /* return true + `resume' returns */ } } static int luaB_auxwrap (lua_State *L) { lua_State *co = lua_tothread(L, lua_upvalueindex(1)); int r = auxresume(L, co, lua_gettop(L)); if (r < 0) { if (lua_isstring(L, -1)) { /* error object is a string? */ luaL_where(L, 1); /* add extra info */ lua_insert(L, -2); lua_concat(L, 2); } lua_error(L); /* propagate error */ } return r; } static int luaB_cocreate (lua_State *L) { lua_State *NL = lua_newthread(L); luaL_argcheck(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1), 1, "Lua function expected"); lua_pushvalue(L, 1); /* move function to top */ lua_xmove(L, NL, 1); /* move function from L to NL */ return 1; } static int luaB_cowrap (lua_State *L) { luaB_cocreate(L); lua_pushcclosure(L, luaB_auxwrap, 1); return 1; } static int luaB_yield (lua_State *L) { return lua_yield(L, lua_gettop(L)); } static int luaB_corunning (lua_State *L) { if (lua_pushthread(L)) lua_pushnil(L); /* main thread is not a coroutine */ return 1; } static const luaL_Reg co_funcs[] = { {"create", luaB_cocreate}, {"resume", luaB_coresume}, {"running", luaB_corunning}, {"status", luaB_costatus}, {"wrap", luaB_cowrap}, {"yield", luaB_yield}, {NULL, NULL} }; /* }====================================================== */ static void auxopen (lua_State *L, const char *name, lua_CFunction f, lua_CFunction u) { lua_pushcfunction(L, u); lua_pushcclosure(L, f, 1); lua_setfield(L, -2, name); } static void base_open (lua_State *L) { /* set global _G */ lua_pushvalue(L, LUA_GLOBALSINDEX); lua_setglobal(L, "_G"); /* open lib into global table */ luaL_register(L, "_G", base_funcs); lua_pushliteral(L, LUA_VERSION); lua_setglobal(L, "_VERSION"); /* set global _VERSION */ /* `ipairs' and `pairs' need auxiliary functions as upvalues */ auxopen(L, "ipairs", luaB_ipairs, ipairsaux); auxopen(L, "pairs", luaB_pairs, luaB_next); /* `newproxy' needs a weaktable as upvalue */ lua_createtable(L, 0, 1); /* new table `w' */ lua_pushvalue(L, -1); /* `w' will be its own metatable */ lua_setmetatable(L, -2); lua_pushliteral(L, "kv"); lua_setfield(L, -2, "__mode"); /* metatable(w).__mode = "kv" */ lua_pushcclosure(L, luaB_newproxy, 1); lua_setglobal(L, "newproxy"); /* set global `newproxy' */ } LUALIB_API int luaopen_base (lua_State *L) { base_open(L); luaL_register(L, LUA_COLIBNAME, co_funcs); return 2; } redis-2.6.16/deps/lua/src/lcode.c000066400000000000000000000512621220734223100164530ustar00rootroot00000000000000/* ** $Id: lcode.c,v 2.25.1.5 2011/01/31 14:53:16 roberto Exp $ ** Code generator for Lua ** See Copyright Notice in lua.h */ #include #define lcode_c #define LUA_CORE #include "lua.h" #include "lcode.h" #include "ldebug.h" #include "ldo.h" #include "lgc.h" #include "llex.h" #include "lmem.h" #include "lobject.h" #include "lopcodes.h" #include "lparser.h" #include "ltable.h" #define hasjumps(e) ((e)->t != (e)->f) static int isnumeral(expdesc *e) { return (e->k == VKNUM && e->t == NO_JUMP && e->f == NO_JUMP); } void luaK_nil (FuncState *fs, int from, int n) { Instruction *previous; if (fs->pc > fs->lasttarget) { /* no jumps to current position? */ if (fs->pc == 0) { /* function start? */ if (from >= fs->nactvar) return; /* positions are already clean */ } else { previous = &fs->f->code[fs->pc-1]; if (GET_OPCODE(*previous) == OP_LOADNIL) { int pfrom = GETARG_A(*previous); int pto = GETARG_B(*previous); if (pfrom <= from && from <= pto+1) { /* can connect both? */ if (from+n-1 > pto) SETARG_B(*previous, from+n-1); return; } } } } luaK_codeABC(fs, OP_LOADNIL, from, from+n-1, 0); /* else no optimization */ } int luaK_jump (FuncState *fs) { int jpc = fs->jpc; /* save list of jumps to here */ int j; fs->jpc = NO_JUMP; j = luaK_codeAsBx(fs, OP_JMP, 0, NO_JUMP); luaK_concat(fs, &j, jpc); /* keep them on hold */ return j; } void luaK_ret (FuncState *fs, int first, int nret) { luaK_codeABC(fs, OP_RETURN, first, nret+1, 0); } static int condjump (FuncState *fs, OpCode op, int A, int B, int C) { luaK_codeABC(fs, op, A, B, C); return luaK_jump(fs); } static void fixjump (FuncState *fs, int pc, int dest) { Instruction *jmp = &fs->f->code[pc]; int offset = dest-(pc+1); lua_assert(dest != NO_JUMP); if (abs(offset) > MAXARG_sBx) luaX_syntaxerror(fs->ls, "control structure too long"); SETARG_sBx(*jmp, offset); } /* ** returns current `pc' and marks it as a jump target (to avoid wrong ** optimizations with consecutive instructions not in the same basic block). */ int luaK_getlabel (FuncState *fs) { fs->lasttarget = fs->pc; return fs->pc; } static int getjump (FuncState *fs, int pc) { int offset = GETARG_sBx(fs->f->code[pc]); if (offset == NO_JUMP) /* point to itself represents end of list */ return NO_JUMP; /* end of list */ else return (pc+1)+offset; /* turn offset into absolute position */ } static Instruction *getjumpcontrol (FuncState *fs, int pc) { Instruction *pi = &fs->f->code[pc]; if (pc >= 1 && testTMode(GET_OPCODE(*(pi-1)))) return pi-1; else return pi; } /* ** check whether list has any jump that do not produce a value ** (or produce an inverted value) */ static int need_value (FuncState *fs, int list) { for (; list != NO_JUMP; list = getjump(fs, list)) { Instruction i = *getjumpcontrol(fs, list); if (GET_OPCODE(i) != OP_TESTSET) return 1; } return 0; /* not found */ } static int patchtestreg (FuncState *fs, int node, int reg) { Instruction *i = getjumpcontrol(fs, node); if (GET_OPCODE(*i) != OP_TESTSET) return 0; /* cannot patch other instructions */ if (reg != NO_REG && reg != GETARG_B(*i)) SETARG_A(*i, reg); else /* no register to put value or register already has the value */ *i = CREATE_ABC(OP_TEST, GETARG_B(*i), 0, GETARG_C(*i)); return 1; } static void removevalues (FuncState *fs, int list) { for (; list != NO_JUMP; list = getjump(fs, list)) patchtestreg(fs, list, NO_REG); } static void patchlistaux (FuncState *fs, int list, int vtarget, int reg, int dtarget) { while (list != NO_JUMP) { int next = getjump(fs, list); if (patchtestreg(fs, list, reg)) fixjump(fs, list, vtarget); else fixjump(fs, list, dtarget); /* jump to default target */ list = next; } } static void dischargejpc (FuncState *fs) { patchlistaux(fs, fs->jpc, fs->pc, NO_REG, fs->pc); fs->jpc = NO_JUMP; } void luaK_patchlist (FuncState *fs, int list, int target) { if (target == fs->pc) luaK_patchtohere(fs, list); else { lua_assert(target < fs->pc); patchlistaux(fs, list, target, NO_REG, target); } } void luaK_patchtohere (FuncState *fs, int list) { luaK_getlabel(fs); luaK_concat(fs, &fs->jpc, list); } void luaK_concat (FuncState *fs, int *l1, int l2) { if (l2 == NO_JUMP) return; else if (*l1 == NO_JUMP) *l1 = l2; else { int list = *l1; int next; while ((next = getjump(fs, list)) != NO_JUMP) /* find last element */ list = next; fixjump(fs, list, l2); } } void luaK_checkstack (FuncState *fs, int n) { int newstack = fs->freereg + n; if (newstack > fs->f->maxstacksize) { if (newstack >= MAXSTACK) luaX_syntaxerror(fs->ls, "function or expression too complex"); fs->f->maxstacksize = cast_byte(newstack); } } void luaK_reserveregs (FuncState *fs, int n) { luaK_checkstack(fs, n); fs->freereg += n; } static void freereg (FuncState *fs, int reg) { if (!ISK(reg) && reg >= fs->nactvar) { fs->freereg--; lua_assert(reg == fs->freereg); } } static void freeexp (FuncState *fs, expdesc *e) { if (e->k == VNONRELOC) freereg(fs, e->u.s.info); } static int addk (FuncState *fs, TValue *k, TValue *v) { lua_State *L = fs->L; TValue *idx = luaH_set(L, fs->h, k); Proto *f = fs->f; int oldsize = f->sizek; if (ttisnumber(idx)) { lua_assert(luaO_rawequalObj(&fs->f->k[cast_int(nvalue(idx))], v)); return cast_int(nvalue(idx)); } else { /* constant not found; create a new entry */ setnvalue(idx, cast_num(fs->nk)); luaM_growvector(L, f->k, fs->nk, f->sizek, TValue, MAXARG_Bx, "constant table overflow"); while (oldsize < f->sizek) setnilvalue(&f->k[oldsize++]); setobj(L, &f->k[fs->nk], v); luaC_barrier(L, f, v); return fs->nk++; } } int luaK_stringK (FuncState *fs, TString *s) { TValue o; setsvalue(fs->L, &o, s); return addk(fs, &o, &o); } int luaK_numberK (FuncState *fs, lua_Number r) { TValue o; setnvalue(&o, r); return addk(fs, &o, &o); } static int boolK (FuncState *fs, int b) { TValue o; setbvalue(&o, b); return addk(fs, &o, &o); } static int nilK (FuncState *fs) { TValue k, v; setnilvalue(&v); /* cannot use nil as key; instead use table itself to represent nil */ sethvalue(fs->L, &k, fs->h); return addk(fs, &k, &v); } void luaK_setreturns (FuncState *fs, expdesc *e, int nresults) { if (e->k == VCALL) { /* expression is an open function call? */ SETARG_C(getcode(fs, e), nresults+1); } else if (e->k == VVARARG) { SETARG_B(getcode(fs, e), nresults+1); SETARG_A(getcode(fs, e), fs->freereg); luaK_reserveregs(fs, 1); } } void luaK_setoneret (FuncState *fs, expdesc *e) { if (e->k == VCALL) { /* expression is an open function call? */ e->k = VNONRELOC; e->u.s.info = GETARG_A(getcode(fs, e)); } else if (e->k == VVARARG) { SETARG_B(getcode(fs, e), 2); e->k = VRELOCABLE; /* can relocate its simple result */ } } void luaK_dischargevars (FuncState *fs, expdesc *e) { switch (e->k) { case VLOCAL: { e->k = VNONRELOC; break; } case VUPVAL: { e->u.s.info = luaK_codeABC(fs, OP_GETUPVAL, 0, e->u.s.info, 0); e->k = VRELOCABLE; break; } case VGLOBAL: { e->u.s.info = luaK_codeABx(fs, OP_GETGLOBAL, 0, e->u.s.info); e->k = VRELOCABLE; break; } case VINDEXED: { freereg(fs, e->u.s.aux); freereg(fs, e->u.s.info); e->u.s.info = luaK_codeABC(fs, OP_GETTABLE, 0, e->u.s.info, e->u.s.aux); e->k = VRELOCABLE; break; } case VVARARG: case VCALL: { luaK_setoneret(fs, e); break; } default: break; /* there is one value available (somewhere) */ } } static int code_label (FuncState *fs, int A, int b, int jump) { luaK_getlabel(fs); /* those instructions may be jump targets */ return luaK_codeABC(fs, OP_LOADBOOL, A, b, jump); } static void discharge2reg (FuncState *fs, expdesc *e, int reg) { luaK_dischargevars(fs, e); switch (e->k) { case VNIL: { luaK_nil(fs, reg, 1); break; } case VFALSE: case VTRUE: { luaK_codeABC(fs, OP_LOADBOOL, reg, e->k == VTRUE, 0); break; } case VK: { luaK_codeABx(fs, OP_LOADK, reg, e->u.s.info); break; } case VKNUM: { luaK_codeABx(fs, OP_LOADK, reg, luaK_numberK(fs, e->u.nval)); break; } case VRELOCABLE: { Instruction *pc = &getcode(fs, e); SETARG_A(*pc, reg); break; } case VNONRELOC: { if (reg != e->u.s.info) luaK_codeABC(fs, OP_MOVE, reg, e->u.s.info, 0); break; } default: { lua_assert(e->k == VVOID || e->k == VJMP); return; /* nothing to do... */ } } e->u.s.info = reg; e->k = VNONRELOC; } static void discharge2anyreg (FuncState *fs, expdesc *e) { if (e->k != VNONRELOC) { luaK_reserveregs(fs, 1); discharge2reg(fs, e, fs->freereg-1); } } static void exp2reg (FuncState *fs, expdesc *e, int reg) { discharge2reg(fs, e, reg); if (e->k == VJMP) luaK_concat(fs, &e->t, e->u.s.info); /* put this jump in `t' list */ if (hasjumps(e)) { int final; /* position after whole expression */ int p_f = NO_JUMP; /* position of an eventual LOAD false */ int p_t = NO_JUMP; /* position of an eventual LOAD true */ if (need_value(fs, e->t) || need_value(fs, e->f)) { int fj = (e->k == VJMP) ? NO_JUMP : luaK_jump(fs); p_f = code_label(fs, reg, 0, 1); p_t = code_label(fs, reg, 1, 0); luaK_patchtohere(fs, fj); } final = luaK_getlabel(fs); patchlistaux(fs, e->f, final, reg, p_f); patchlistaux(fs, e->t, final, reg, p_t); } e->f = e->t = NO_JUMP; e->u.s.info = reg; e->k = VNONRELOC; } void luaK_exp2nextreg (FuncState *fs, expdesc *e) { luaK_dischargevars(fs, e); freeexp(fs, e); luaK_reserveregs(fs, 1); exp2reg(fs, e, fs->freereg - 1); } int luaK_exp2anyreg (FuncState *fs, expdesc *e) { luaK_dischargevars(fs, e); if (e->k == VNONRELOC) { if (!hasjumps(e)) return e->u.s.info; /* exp is already in a register */ if (e->u.s.info >= fs->nactvar) { /* reg. is not a local? */ exp2reg(fs, e, e->u.s.info); /* put value on it */ return e->u.s.info; } } luaK_exp2nextreg(fs, e); /* default */ return e->u.s.info; } void luaK_exp2val (FuncState *fs, expdesc *e) { if (hasjumps(e)) luaK_exp2anyreg(fs, e); else luaK_dischargevars(fs, e); } int luaK_exp2RK (FuncState *fs, expdesc *e) { luaK_exp2val(fs, e); switch (e->k) { case VKNUM: case VTRUE: case VFALSE: case VNIL: { if (fs->nk <= MAXINDEXRK) { /* constant fit in RK operand? */ e->u.s.info = (e->k == VNIL) ? nilK(fs) : (e->k == VKNUM) ? luaK_numberK(fs, e->u.nval) : boolK(fs, (e->k == VTRUE)); e->k = VK; return RKASK(e->u.s.info); } else break; } case VK: { if (e->u.s.info <= MAXINDEXRK) /* constant fit in argC? */ return RKASK(e->u.s.info); else break; } default: break; } /* not a constant in the right range: put it in a register */ return luaK_exp2anyreg(fs, e); } void luaK_storevar (FuncState *fs, expdesc *var, expdesc *ex) { switch (var->k) { case VLOCAL: { freeexp(fs, ex); exp2reg(fs, ex, var->u.s.info); return; } case VUPVAL: { int e = luaK_exp2anyreg(fs, ex); luaK_codeABC(fs, OP_SETUPVAL, e, var->u.s.info, 0); break; } case VGLOBAL: { int e = luaK_exp2anyreg(fs, ex); luaK_codeABx(fs, OP_SETGLOBAL, e, var->u.s.info); break; } case VINDEXED: { int e = luaK_exp2RK(fs, ex); luaK_codeABC(fs, OP_SETTABLE, var->u.s.info, var->u.s.aux, e); break; } default: { lua_assert(0); /* invalid var kind to store */ break; } } freeexp(fs, ex); } void luaK_self (FuncState *fs, expdesc *e, expdesc *key) { int func; luaK_exp2anyreg(fs, e); freeexp(fs, e); func = fs->freereg; luaK_reserveregs(fs, 2); luaK_codeABC(fs, OP_SELF, func, e->u.s.info, luaK_exp2RK(fs, key)); freeexp(fs, key); e->u.s.info = func; e->k = VNONRELOC; } static void invertjump (FuncState *fs, expdesc *e) { Instruction *pc = getjumpcontrol(fs, e->u.s.info); lua_assert(testTMode(GET_OPCODE(*pc)) && GET_OPCODE(*pc) != OP_TESTSET && GET_OPCODE(*pc) != OP_TEST); SETARG_A(*pc, !(GETARG_A(*pc))); } static int jumponcond (FuncState *fs, expdesc *e, int cond) { if (e->k == VRELOCABLE) { Instruction ie = getcode(fs, e); if (GET_OPCODE(ie) == OP_NOT) { fs->pc--; /* remove previous OP_NOT */ return condjump(fs, OP_TEST, GETARG_B(ie), 0, !cond); } /* else go through */ } discharge2anyreg(fs, e); freeexp(fs, e); return condjump(fs, OP_TESTSET, NO_REG, e->u.s.info, cond); } void luaK_goiftrue (FuncState *fs, expdesc *e) { int pc; /* pc of last jump */ luaK_dischargevars(fs, e); switch (e->k) { case VK: case VKNUM: case VTRUE: { pc = NO_JUMP; /* always true; do nothing */ break; } case VJMP: { invertjump(fs, e); pc = e->u.s.info; break; } default: { pc = jumponcond(fs, e, 0); break; } } luaK_concat(fs, &e->f, pc); /* insert last jump in `f' list */ luaK_patchtohere(fs, e->t); e->t = NO_JUMP; } static void luaK_goiffalse (FuncState *fs, expdesc *e) { int pc; /* pc of last jump */ luaK_dischargevars(fs, e); switch (e->k) { case VNIL: case VFALSE: { pc = NO_JUMP; /* always false; do nothing */ break; } case VJMP: { pc = e->u.s.info; break; } default: { pc = jumponcond(fs, e, 1); break; } } luaK_concat(fs, &e->t, pc); /* insert last jump in `t' list */ luaK_patchtohere(fs, e->f); e->f = NO_JUMP; } static void codenot (FuncState *fs, expdesc *e) { luaK_dischargevars(fs, e); switch (e->k) { case VNIL: case VFALSE: { e->k = VTRUE; break; } case VK: case VKNUM: case VTRUE: { e->k = VFALSE; break; } case VJMP: { invertjump(fs, e); break; } case VRELOCABLE: case VNONRELOC: { discharge2anyreg(fs, e); freeexp(fs, e); e->u.s.info = luaK_codeABC(fs, OP_NOT, 0, e->u.s.info, 0); e->k = VRELOCABLE; break; } default: { lua_assert(0); /* cannot happen */ break; } } /* interchange true and false lists */ { int temp = e->f; e->f = e->t; e->t = temp; } removevalues(fs, e->f); removevalues(fs, e->t); } void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k) { t->u.s.aux = luaK_exp2RK(fs, k); t->k = VINDEXED; } static int constfolding (OpCode op, expdesc *e1, expdesc *e2) { lua_Number v1, v2, r; if (!isnumeral(e1) || !isnumeral(e2)) return 0; v1 = e1->u.nval; v2 = e2->u.nval; switch (op) { case OP_ADD: r = luai_numadd(v1, v2); break; case OP_SUB: r = luai_numsub(v1, v2); break; case OP_MUL: r = luai_nummul(v1, v2); break; case OP_DIV: if (v2 == 0) return 0; /* do not attempt to divide by 0 */ r = luai_numdiv(v1, v2); break; case OP_MOD: if (v2 == 0) return 0; /* do not attempt to divide by 0 */ r = luai_nummod(v1, v2); break; case OP_POW: r = luai_numpow(v1, v2); break; case OP_UNM: r = luai_numunm(v1); break; case OP_LEN: return 0; /* no constant folding for 'len' */ default: lua_assert(0); r = 0; break; } if (luai_numisnan(r)) return 0; /* do not attempt to produce NaN */ e1->u.nval = r; return 1; } static void codearith (FuncState *fs, OpCode op, expdesc *e1, expdesc *e2) { if (constfolding(op, e1, e2)) return; else { int o2 = (op != OP_UNM && op != OP_LEN) ? luaK_exp2RK(fs, e2) : 0; int o1 = luaK_exp2RK(fs, e1); if (o1 > o2) { freeexp(fs, e1); freeexp(fs, e2); } else { freeexp(fs, e2); freeexp(fs, e1); } e1->u.s.info = luaK_codeABC(fs, op, 0, o1, o2); e1->k = VRELOCABLE; } } static void codecomp (FuncState *fs, OpCode op, int cond, expdesc *e1, expdesc *e2) { int o1 = luaK_exp2RK(fs, e1); int o2 = luaK_exp2RK(fs, e2); freeexp(fs, e2); freeexp(fs, e1); if (cond == 0 && op != OP_EQ) { int temp; /* exchange args to replace by `<' or `<=' */ temp = o1; o1 = o2; o2 = temp; /* o1 <==> o2 */ cond = 1; } e1->u.s.info = condjump(fs, op, cond, o1, o2); e1->k = VJMP; } void luaK_prefix (FuncState *fs, UnOpr op, expdesc *e) { expdesc e2; e2.t = e2.f = NO_JUMP; e2.k = VKNUM; e2.u.nval = 0; switch (op) { case OPR_MINUS: { if (!isnumeral(e)) luaK_exp2anyreg(fs, e); /* cannot operate on non-numeric constants */ codearith(fs, OP_UNM, e, &e2); break; } case OPR_NOT: codenot(fs, e); break; case OPR_LEN: { luaK_exp2anyreg(fs, e); /* cannot operate on constants */ codearith(fs, OP_LEN, e, &e2); break; } default: lua_assert(0); } } void luaK_infix (FuncState *fs, BinOpr op, expdesc *v) { switch (op) { case OPR_AND: { luaK_goiftrue(fs, v); break; } case OPR_OR: { luaK_goiffalse(fs, v); break; } case OPR_CONCAT: { luaK_exp2nextreg(fs, v); /* operand must be on the `stack' */ break; } case OPR_ADD: case OPR_SUB: case OPR_MUL: case OPR_DIV: case OPR_MOD: case OPR_POW: { if (!isnumeral(v)) luaK_exp2RK(fs, v); break; } default: { luaK_exp2RK(fs, v); break; } } } void luaK_posfix (FuncState *fs, BinOpr op, expdesc *e1, expdesc *e2) { switch (op) { case OPR_AND: { lua_assert(e1->t == NO_JUMP); /* list must be closed */ luaK_dischargevars(fs, e2); luaK_concat(fs, &e2->f, e1->f); *e1 = *e2; break; } case OPR_OR: { lua_assert(e1->f == NO_JUMP); /* list must be closed */ luaK_dischargevars(fs, e2); luaK_concat(fs, &e2->t, e1->t); *e1 = *e2; break; } case OPR_CONCAT: { luaK_exp2val(fs, e2); if (e2->k == VRELOCABLE && GET_OPCODE(getcode(fs, e2)) == OP_CONCAT) { lua_assert(e1->u.s.info == GETARG_B(getcode(fs, e2))-1); freeexp(fs, e1); SETARG_B(getcode(fs, e2), e1->u.s.info); e1->k = VRELOCABLE; e1->u.s.info = e2->u.s.info; } else { luaK_exp2nextreg(fs, e2); /* operand must be on the 'stack' */ codearith(fs, OP_CONCAT, e1, e2); } break; } case OPR_ADD: codearith(fs, OP_ADD, e1, e2); break; case OPR_SUB: codearith(fs, OP_SUB, e1, e2); break; case OPR_MUL: codearith(fs, OP_MUL, e1, e2); break; case OPR_DIV: codearith(fs, OP_DIV, e1, e2); break; case OPR_MOD: codearith(fs, OP_MOD, e1, e2); break; case OPR_POW: codearith(fs, OP_POW, e1, e2); break; case OPR_EQ: codecomp(fs, OP_EQ, 1, e1, e2); break; case OPR_NE: codecomp(fs, OP_EQ, 0, e1, e2); break; case OPR_LT: codecomp(fs, OP_LT, 1, e1, e2); break; case OPR_LE: codecomp(fs, OP_LE, 1, e1, e2); break; case OPR_GT: codecomp(fs, OP_LT, 0, e1, e2); break; case OPR_GE: codecomp(fs, OP_LE, 0, e1, e2); break; default: lua_assert(0); } } void luaK_fixline (FuncState *fs, int line) { fs->f->lineinfo[fs->pc - 1] = line; } static int luaK_code (FuncState *fs, Instruction i, int line) { Proto *f = fs->f; dischargejpc(fs); /* `pc' will change */ /* put new instruction in code array */ luaM_growvector(fs->L, f->code, fs->pc, f->sizecode, Instruction, MAX_INT, "code size overflow"); f->code[fs->pc] = i; /* save corresponding line information */ luaM_growvector(fs->L, f->lineinfo, fs->pc, f->sizelineinfo, int, MAX_INT, "code size overflow"); f->lineinfo[fs->pc] = line; return fs->pc++; } int luaK_codeABC (FuncState *fs, OpCode o, int a, int b, int c) { lua_assert(getOpMode(o) == iABC); lua_assert(getBMode(o) != OpArgN || b == 0); lua_assert(getCMode(o) != OpArgN || c == 0); return luaK_code(fs, CREATE_ABC(o, a, b, c), fs->ls->lastline); } int luaK_codeABx (FuncState *fs, OpCode o, int a, unsigned int bc) { lua_assert(getOpMode(o) == iABx || getOpMode(o) == iAsBx); lua_assert(getCMode(o) == OpArgN); return luaK_code(fs, CREATE_ABx(o, a, bc), fs->ls->lastline); } void luaK_setlist (FuncState *fs, int base, int nelems, int tostore) { int c = (nelems - 1)/LFIELDS_PER_FLUSH + 1; int b = (tostore == LUA_MULTRET) ? 0 : tostore; lua_assert(tostore != 0); if (c <= MAXARG_C) luaK_codeABC(fs, OP_SETLIST, base, b, c); else { luaK_codeABC(fs, OP_SETLIST, base, b, 0); luaK_code(fs, cast(Instruction, c), fs->ls->lastline); } fs->freereg = base + 1; /* free registers with list values */ } redis-2.6.16/deps/lua/src/lcode.h000066400000000000000000000052761220734223100164640ustar00rootroot00000000000000/* ** $Id: lcode.h,v 1.48.1.1 2007/12/27 13:02:25 roberto Exp $ ** Code generator for Lua ** See Copyright Notice in lua.h */ #ifndef lcode_h #define lcode_h #include "llex.h" #include "lobject.h" #include "lopcodes.h" #include "lparser.h" /* ** Marks the end of a patch list. It is an invalid value both as an absolute ** address, and as a list link (would link an element to itself). */ #define NO_JUMP (-1) /* ** grep "ORDER OPR" if you change these enums */ typedef enum BinOpr { OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW, OPR_CONCAT, OPR_NE, OPR_EQ, OPR_LT, OPR_LE, OPR_GT, OPR_GE, OPR_AND, OPR_OR, OPR_NOBINOPR } BinOpr; typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr; #define getcode(fs,e) ((fs)->f->code[(e)->u.s.info]) #define luaK_codeAsBx(fs,o,A,sBx) luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx) #define luaK_setmultret(fs,e) luaK_setreturns(fs, e, LUA_MULTRET) LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx); LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C); LUAI_FUNC void luaK_fixline (FuncState *fs, int line); LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n); LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n); LUAI_FUNC void luaK_checkstack (FuncState *fs, int n); LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s); LUAI_FUNC int luaK_numberK (FuncState *fs, lua_Number r); LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e); LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e); LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e); LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e); LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e); LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key); LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k); LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e); LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e); LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults); LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e); LUAI_FUNC int luaK_jump (FuncState *fs); LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret); LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target); LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list); LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2); LUAI_FUNC int luaK_getlabel (FuncState *fs); LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v); LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v); LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, expdesc *v2); LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore); #endif redis-2.6.16/deps/lua/src/ldblib.c000066400000000000000000000235541220734223100166200ustar00rootroot00000000000000/* ** $Id: ldblib.c,v 1.104.1.4 2009/08/04 18:50:18 roberto Exp $ ** Interface from Lua to its debug API ** See Copyright Notice in lua.h */ #include #include #include #define ldblib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #include "lualib.h" static int db_getregistry (lua_State *L) { lua_pushvalue(L, LUA_REGISTRYINDEX); return 1; } static int db_getmetatable (lua_State *L) { luaL_checkany(L, 1); if (!lua_getmetatable(L, 1)) { lua_pushnil(L); /* no metatable */ } return 1; } static int db_setmetatable (lua_State *L) { int t = lua_type(L, 2); luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2, "nil or table expected"); lua_settop(L, 2); lua_pushboolean(L, lua_setmetatable(L, 1)); return 1; } static int db_getfenv (lua_State *L) { luaL_checkany(L, 1); lua_getfenv(L, 1); return 1; } static int db_setfenv (lua_State *L) { luaL_checktype(L, 2, LUA_TTABLE); lua_settop(L, 2); if (lua_setfenv(L, 1) == 0) luaL_error(L, LUA_QL("setfenv") " cannot change environment of given object"); return 1; } static void settabss (lua_State *L, const char *i, const char *v) { lua_pushstring(L, v); lua_setfield(L, -2, i); } static void settabsi (lua_State *L, const char *i, int v) { lua_pushinteger(L, v); lua_setfield(L, -2, i); } static lua_State *getthread (lua_State *L, int *arg) { if (lua_isthread(L, 1)) { *arg = 1; return lua_tothread(L, 1); } else { *arg = 0; return L; } } static void treatstackoption (lua_State *L, lua_State *L1, const char *fname) { if (L == L1) { lua_pushvalue(L, -2); lua_remove(L, -3); } else lua_xmove(L1, L, 1); lua_setfield(L, -2, fname); } static int db_getinfo (lua_State *L) { lua_Debug ar; int arg; lua_State *L1 = getthread(L, &arg); const char *options = luaL_optstring(L, arg+2, "flnSu"); if (lua_isnumber(L, arg+1)) { if (!lua_getstack(L1, (int)lua_tointeger(L, arg+1), &ar)) { lua_pushnil(L); /* level out of range */ return 1; } } else if (lua_isfunction(L, arg+1)) { lua_pushfstring(L, ">%s", options); options = lua_tostring(L, -1); lua_pushvalue(L, arg+1); lua_xmove(L, L1, 1); } else return luaL_argerror(L, arg+1, "function or level expected"); if (!lua_getinfo(L1, options, &ar)) return luaL_argerror(L, arg+2, "invalid option"); lua_createtable(L, 0, 2); if (strchr(options, 'S')) { settabss(L, "source", ar.source); settabss(L, "short_src", ar.short_src); settabsi(L, "linedefined", ar.linedefined); settabsi(L, "lastlinedefined", ar.lastlinedefined); settabss(L, "what", ar.what); } if (strchr(options, 'l')) settabsi(L, "currentline", ar.currentline); if (strchr(options, 'u')) settabsi(L, "nups", ar.nups); if (strchr(options, 'n')) { settabss(L, "name", ar.name); settabss(L, "namewhat", ar.namewhat); } if (strchr(options, 'L')) treatstackoption(L, L1, "activelines"); if (strchr(options, 'f')) treatstackoption(L, L1, "func"); return 1; /* return table */ } static int db_getlocal (lua_State *L) { int arg; lua_State *L1 = getthread(L, &arg); lua_Debug ar; const char *name; if (!lua_getstack(L1, luaL_checkint(L, arg+1), &ar)) /* out of range? */ return luaL_argerror(L, arg+1, "level out of range"); name = lua_getlocal(L1, &ar, luaL_checkint(L, arg+2)); if (name) { lua_xmove(L1, L, 1); lua_pushstring(L, name); lua_pushvalue(L, -2); return 2; } else { lua_pushnil(L); return 1; } } static int db_setlocal (lua_State *L) { int arg; lua_State *L1 = getthread(L, &arg); lua_Debug ar; if (!lua_getstack(L1, luaL_checkint(L, arg+1), &ar)) /* out of range? */ return luaL_argerror(L, arg+1, "level out of range"); luaL_checkany(L, arg+3); lua_settop(L, arg+3); lua_xmove(L, L1, 1); lua_pushstring(L, lua_setlocal(L1, &ar, luaL_checkint(L, arg+2))); return 1; } static int auxupvalue (lua_State *L, int get) { const char *name; int n = luaL_checkint(L, 2); luaL_checktype(L, 1, LUA_TFUNCTION); if (lua_iscfunction(L, 1)) return 0; /* cannot touch C upvalues from Lua */ name = get ? lua_getupvalue(L, 1, n) : lua_setupvalue(L, 1, n); if (name == NULL) return 0; lua_pushstring(L, name); lua_insert(L, -(get+1)); return get + 1; } static int db_getupvalue (lua_State *L) { return auxupvalue(L, 1); } static int db_setupvalue (lua_State *L) { luaL_checkany(L, 3); return auxupvalue(L, 0); } static const char KEY_HOOK = 'h'; static void hookf (lua_State *L, lua_Debug *ar) { static const char *const hooknames[] = {"call", "return", "line", "count", "tail return"}; lua_pushlightuserdata(L, (void *)&KEY_HOOK); lua_rawget(L, LUA_REGISTRYINDEX); lua_pushlightuserdata(L, L); lua_rawget(L, -2); if (lua_isfunction(L, -1)) { lua_pushstring(L, hooknames[(int)ar->event]); if (ar->currentline >= 0) lua_pushinteger(L, ar->currentline); else lua_pushnil(L); lua_assert(lua_getinfo(L, "lS", ar)); lua_call(L, 2, 0); } } static int makemask (const char *smask, int count) { int mask = 0; if (strchr(smask, 'c')) mask |= LUA_MASKCALL; if (strchr(smask, 'r')) mask |= LUA_MASKRET; if (strchr(smask, 'l')) mask |= LUA_MASKLINE; if (count > 0) mask |= LUA_MASKCOUNT; return mask; } static char *unmakemask (int mask, char *smask) { int i = 0; if (mask & LUA_MASKCALL) smask[i++] = 'c'; if (mask & LUA_MASKRET) smask[i++] = 'r'; if (mask & LUA_MASKLINE) smask[i++] = 'l'; smask[i] = '\0'; return smask; } static void gethooktable (lua_State *L) { lua_pushlightuserdata(L, (void *)&KEY_HOOK); lua_rawget(L, LUA_REGISTRYINDEX); if (!lua_istable(L, -1)) { lua_pop(L, 1); lua_createtable(L, 0, 1); lua_pushlightuserdata(L, (void *)&KEY_HOOK); lua_pushvalue(L, -2); lua_rawset(L, LUA_REGISTRYINDEX); } } static int db_sethook (lua_State *L) { int arg, mask, count; lua_Hook func; lua_State *L1 = getthread(L, &arg); if (lua_isnoneornil(L, arg+1)) { lua_settop(L, arg+1); func = NULL; mask = 0; count = 0; /* turn off hooks */ } else { const char *smask = luaL_checkstring(L, arg+2); luaL_checktype(L, arg+1, LUA_TFUNCTION); count = luaL_optint(L, arg+3, 0); func = hookf; mask = makemask(smask, count); } gethooktable(L); lua_pushlightuserdata(L, L1); lua_pushvalue(L, arg+1); lua_rawset(L, -3); /* set new hook */ lua_pop(L, 1); /* remove hook table */ lua_sethook(L1, func, mask, count); /* set hooks */ return 0; } static int db_gethook (lua_State *L) { int arg; lua_State *L1 = getthread(L, &arg); char buff[5]; int mask = lua_gethookmask(L1); lua_Hook hook = lua_gethook(L1); if (hook != NULL && hook != hookf) /* external hook? */ lua_pushliteral(L, "external hook"); else { gethooktable(L); lua_pushlightuserdata(L, L1); lua_rawget(L, -2); /* get hook */ lua_remove(L, -2); /* remove hook table */ } lua_pushstring(L, unmakemask(mask, buff)); lua_pushinteger(L, lua_gethookcount(L1)); return 3; } static int db_debug (lua_State *L) { for (;;) { char buffer[250]; fputs("lua_debug> ", stderr); if (fgets(buffer, sizeof(buffer), stdin) == 0 || strcmp(buffer, "cont\n") == 0) return 0; if (luaL_loadbuffer(L, buffer, strlen(buffer), "=(debug command)") || lua_pcall(L, 0, 0, 0)) { fputs(lua_tostring(L, -1), stderr); fputs("\n", stderr); } lua_settop(L, 0); /* remove eventual returns */ } } #define LEVELS1 12 /* size of the first part of the stack */ #define LEVELS2 10 /* size of the second part of the stack */ static int db_errorfb (lua_State *L) { int level; int firstpart = 1; /* still before eventual `...' */ int arg; lua_State *L1 = getthread(L, &arg); lua_Debug ar; if (lua_isnumber(L, arg+2)) { level = (int)lua_tointeger(L, arg+2); lua_pop(L, 1); } else level = (L == L1) ? 1 : 0; /* level 0 may be this own function */ if (lua_gettop(L) == arg) lua_pushliteral(L, ""); else if (!lua_isstring(L, arg+1)) return 1; /* message is not a string */ else lua_pushliteral(L, "\n"); lua_pushliteral(L, "stack traceback:"); while (lua_getstack(L1, level++, &ar)) { if (level > LEVELS1 && firstpart) { /* no more than `LEVELS2' more levels? */ if (!lua_getstack(L1, level+LEVELS2, &ar)) level--; /* keep going */ else { lua_pushliteral(L, "\n\t..."); /* too many levels */ while (lua_getstack(L1, level+LEVELS2, &ar)) /* find last levels */ level++; } firstpart = 0; continue; } lua_pushliteral(L, "\n\t"); lua_getinfo(L1, "Snl", &ar); lua_pushfstring(L, "%s:", ar.short_src); if (ar.currentline > 0) lua_pushfstring(L, "%d:", ar.currentline); if (*ar.namewhat != '\0') /* is there a name? */ lua_pushfstring(L, " in function " LUA_QS, ar.name); else { if (*ar.what == 'm') /* main? */ lua_pushfstring(L, " in main chunk"); else if (*ar.what == 'C' || *ar.what == 't') lua_pushliteral(L, " ?"); /* C function or tail call */ else lua_pushfstring(L, " in function <%s:%d>", ar.short_src, ar.linedefined); } lua_concat(L, lua_gettop(L) - arg); } lua_concat(L, lua_gettop(L) - arg); return 1; } static const luaL_Reg dblib[] = { {"debug", db_debug}, {"getfenv", db_getfenv}, {"gethook", db_gethook}, {"getinfo", db_getinfo}, {"getlocal", db_getlocal}, {"getregistry", db_getregistry}, {"getmetatable", db_getmetatable}, {"getupvalue", db_getupvalue}, {"setfenv", db_setfenv}, {"sethook", db_sethook}, {"setlocal", db_setlocal}, {"setmetatable", db_setmetatable}, {"setupvalue", db_setupvalue}, {"traceback", db_errorfb}, {NULL, NULL} }; LUALIB_API int luaopen_debug (lua_State *L) { luaL_register(L, LUA_DBLIBNAME, dblib); return 1; } redis-2.6.16/deps/lua/src/ldebug.c000066400000000000000000000407101220734223100166230ustar00rootroot00000000000000/* ** $Id: ldebug.c,v 2.29.1.6 2008/05/08 16:56:26 roberto Exp $ ** Debug Interface ** See Copyright Notice in lua.h */ #include #include #include #define ldebug_c #define LUA_CORE #include "lua.h" #include "lapi.h" #include "lcode.h" #include "ldebug.h" #include "ldo.h" #include "lfunc.h" #include "lobject.h" #include "lopcodes.h" #include "lstate.h" #include "lstring.h" #include "ltable.h" #include "ltm.h" #include "lvm.h" static const char *getfuncname (lua_State *L, CallInfo *ci, const char **name); static int currentpc (lua_State *L, CallInfo *ci) { if (!isLua(ci)) return -1; /* function is not a Lua function? */ if (ci == L->ci) ci->savedpc = L->savedpc; return pcRel(ci->savedpc, ci_func(ci)->l.p); } static int currentline (lua_State *L, CallInfo *ci) { int pc = currentpc(L, ci); if (pc < 0) return -1; /* only active lua functions have current-line information */ else return getline(ci_func(ci)->l.p, pc); } /* ** this function can be called asynchronous (e.g. during a signal) */ LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count) { if (func == NULL || mask == 0) { /* turn off hooks? */ mask = 0; func = NULL; } L->hook = func; L->basehookcount = count; resethookcount(L); L->hookmask = cast_byte(mask); return 1; } LUA_API lua_Hook lua_gethook (lua_State *L) { return L->hook; } LUA_API int lua_gethookmask (lua_State *L) { return L->hookmask; } LUA_API int lua_gethookcount (lua_State *L) { return L->basehookcount; } LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar) { int status; CallInfo *ci; lua_lock(L); for (ci = L->ci; level > 0 && ci > L->base_ci; ci--) { level--; if (f_isLua(ci)) /* Lua function? */ level -= ci->tailcalls; /* skip lost tail calls */ } if (level == 0 && ci > L->base_ci) { /* level found? */ status = 1; ar->i_ci = cast_int(ci - L->base_ci); } else if (level < 0) { /* level is of a lost tail call? */ status = 1; ar->i_ci = 0; } else status = 0; /* no such level */ lua_unlock(L); return status; } static Proto *getluaproto (CallInfo *ci) { return (isLua(ci) ? ci_func(ci)->l.p : NULL); } static const char *findlocal (lua_State *L, CallInfo *ci, int n) { const char *name; Proto *fp = getluaproto(ci); if (fp && (name = luaF_getlocalname(fp, n, currentpc(L, ci))) != NULL) return name; /* is a local variable in a Lua function */ else { StkId limit = (ci == L->ci) ? L->top : (ci+1)->func; if (limit - ci->base >= n && n > 0) /* is 'n' inside 'ci' stack? */ return "(*temporary)"; else return NULL; } } LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n) { CallInfo *ci = L->base_ci + ar->i_ci; const char *name = findlocal(L, ci, n); lua_lock(L); if (name) luaA_pushobject(L, ci->base + (n - 1)); lua_unlock(L); return name; } LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n) { CallInfo *ci = L->base_ci + ar->i_ci; const char *name = findlocal(L, ci, n); lua_lock(L); if (name) setobjs2s(L, ci->base + (n - 1), L->top - 1); L->top--; /* pop value */ lua_unlock(L); return name; } static void funcinfo (lua_Debug *ar, Closure *cl) { if (cl->c.isC) { ar->source = "=[C]"; ar->linedefined = -1; ar->lastlinedefined = -1; ar->what = "C"; } else { ar->source = getstr(cl->l.p->source); ar->linedefined = cl->l.p->linedefined; ar->lastlinedefined = cl->l.p->lastlinedefined; ar->what = (ar->linedefined == 0) ? "main" : "Lua"; } luaO_chunkid(ar->short_src, ar->source, LUA_IDSIZE); } static void info_tailcall (lua_Debug *ar) { ar->name = ar->namewhat = ""; ar->what = "tail"; ar->lastlinedefined = ar->linedefined = ar->currentline = -1; ar->source = "=(tail call)"; luaO_chunkid(ar->short_src, ar->source, LUA_IDSIZE); ar->nups = 0; } static void collectvalidlines (lua_State *L, Closure *f) { if (f == NULL || f->c.isC) { setnilvalue(L->top); } else { Table *t = luaH_new(L, 0, 0); int *lineinfo = f->l.p->lineinfo; int i; for (i=0; il.p->sizelineinfo; i++) setbvalue(luaH_setnum(L, t, lineinfo[i]), 1); sethvalue(L, L->top, t); } incr_top(L); } static int auxgetinfo (lua_State *L, const char *what, lua_Debug *ar, Closure *f, CallInfo *ci) { int status = 1; if (f == NULL) { info_tailcall(ar); return status; } for (; *what; what++) { switch (*what) { case 'S': { funcinfo(ar, f); break; } case 'l': { ar->currentline = (ci) ? currentline(L, ci) : -1; break; } case 'u': { ar->nups = f->c.nupvalues; break; } case 'n': { ar->namewhat = (ci) ? getfuncname(L, ci, &ar->name) : NULL; if (ar->namewhat == NULL) { ar->namewhat = ""; /* not found */ ar->name = NULL; } break; } case 'L': case 'f': /* handled by lua_getinfo */ break; default: status = 0; /* invalid option */ } } return status; } LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar) { int status; Closure *f = NULL; CallInfo *ci = NULL; lua_lock(L); if (*what == '>') { StkId func = L->top - 1; luai_apicheck(L, ttisfunction(func)); what++; /* skip the '>' */ f = clvalue(func); L->top--; /* pop function */ } else if (ar->i_ci != 0) { /* no tail call? */ ci = L->base_ci + ar->i_ci; lua_assert(ttisfunction(ci->func)); f = clvalue(ci->func); } status = auxgetinfo(L, what, ar, f, ci); if (strchr(what, 'f')) { if (f == NULL) setnilvalue(L->top); else setclvalue(L, L->top, f); incr_top(L); } if (strchr(what, 'L')) collectvalidlines(L, f); lua_unlock(L); return status; } /* ** {====================================================== ** Symbolic Execution and code checker ** ======================================================= */ #define check(x) if (!(x)) return 0; #define checkjump(pt,pc) check(0 <= pc && pc < pt->sizecode) #define checkreg(pt,reg) check((reg) < (pt)->maxstacksize) static int precheck (const Proto *pt) { check(pt->maxstacksize <= MAXSTACK); check(pt->numparams+(pt->is_vararg & VARARG_HASARG) <= pt->maxstacksize); check(!(pt->is_vararg & VARARG_NEEDSARG) || (pt->is_vararg & VARARG_HASARG)); check(pt->sizeupvalues <= pt->nups); check(pt->sizelineinfo == pt->sizecode || pt->sizelineinfo == 0); check(pt->sizecode > 0 && GET_OPCODE(pt->code[pt->sizecode-1]) == OP_RETURN); return 1; } #define checkopenop(pt,pc) luaG_checkopenop((pt)->code[(pc)+1]) int luaG_checkopenop (Instruction i) { switch (GET_OPCODE(i)) { case OP_CALL: case OP_TAILCALL: case OP_RETURN: case OP_SETLIST: { check(GETARG_B(i) == 0); return 1; } default: return 0; /* invalid instruction after an open call */ } } static int checkArgMode (const Proto *pt, int r, enum OpArgMask mode) { switch (mode) { case OpArgN: check(r == 0); break; case OpArgU: break; case OpArgR: checkreg(pt, r); break; case OpArgK: check(ISK(r) ? INDEXK(r) < pt->sizek : r < pt->maxstacksize); break; } return 1; } static Instruction symbexec (const Proto *pt, int lastpc, int reg) { int pc; int last; /* stores position of last instruction that changed `reg' */ last = pt->sizecode-1; /* points to final return (a `neutral' instruction) */ check(precheck(pt)); for (pc = 0; pc < lastpc; pc++) { Instruction i = pt->code[pc]; OpCode op = GET_OPCODE(i); int a = GETARG_A(i); int b = 0; int c = 0; check(op < NUM_OPCODES); checkreg(pt, a); switch (getOpMode(op)) { case iABC: { b = GETARG_B(i); c = GETARG_C(i); check(checkArgMode(pt, b, getBMode(op))); check(checkArgMode(pt, c, getCMode(op))); break; } case iABx: { b = GETARG_Bx(i); if (getBMode(op) == OpArgK) check(b < pt->sizek); break; } case iAsBx: { b = GETARG_sBx(i); if (getBMode(op) == OpArgR) { int dest = pc+1+b; check(0 <= dest && dest < pt->sizecode); if (dest > 0) { int j; /* check that it does not jump to a setlist count; this is tricky, because the count from a previous setlist may have the same value of an invalid setlist; so, we must go all the way back to the first of them (if any) */ for (j = 0; j < dest; j++) { Instruction d = pt->code[dest-1-j]; if (!(GET_OPCODE(d) == OP_SETLIST && GETARG_C(d) == 0)) break; } /* if 'j' is even, previous value is not a setlist (even if it looks like one) */ check((j&1) == 0); } } break; } } if (testAMode(op)) { if (a == reg) last = pc; /* change register `a' */ } if (testTMode(op)) { check(pc+2 < pt->sizecode); /* check skip */ check(GET_OPCODE(pt->code[pc+1]) == OP_JMP); } switch (op) { case OP_LOADBOOL: { if (c == 1) { /* does it jump? */ check(pc+2 < pt->sizecode); /* check its jump */ check(GET_OPCODE(pt->code[pc+1]) != OP_SETLIST || GETARG_C(pt->code[pc+1]) != 0); } break; } case OP_LOADNIL: { if (a <= reg && reg <= b) last = pc; /* set registers from `a' to `b' */ break; } case OP_GETUPVAL: case OP_SETUPVAL: { check(b < pt->nups); break; } case OP_GETGLOBAL: case OP_SETGLOBAL: { check(ttisstring(&pt->k[b])); break; } case OP_SELF: { checkreg(pt, a+1); if (reg == a+1) last = pc; break; } case OP_CONCAT: { check(b < c); /* at least two operands */ break; } case OP_TFORLOOP: { check(c >= 1); /* at least one result (control variable) */ checkreg(pt, a+2+c); /* space for results */ if (reg >= a+2) last = pc; /* affect all regs above its base */ break; } case OP_FORLOOP: case OP_FORPREP: checkreg(pt, a+3); /* go through */ case OP_JMP: { int dest = pc+1+b; /* not full check and jump is forward and do not skip `lastpc'? */ if (reg != NO_REG && pc < dest && dest <= lastpc) pc += b; /* do the jump */ break; } case OP_CALL: case OP_TAILCALL: { if (b != 0) { checkreg(pt, a+b-1); } c--; /* c = num. returns */ if (c == LUA_MULTRET) { check(checkopenop(pt, pc)); } else if (c != 0) checkreg(pt, a+c-1); if (reg >= a) last = pc; /* affect all registers above base */ break; } case OP_RETURN: { b--; /* b = num. returns */ if (b > 0) checkreg(pt, a+b-1); break; } case OP_SETLIST: { if (b > 0) checkreg(pt, a + b); if (c == 0) { pc++; check(pc < pt->sizecode - 1); } break; } case OP_CLOSURE: { int nup, j; check(b < pt->sizep); nup = pt->p[b]->nups; check(pc + nup < pt->sizecode); for (j = 1; j <= nup; j++) { OpCode op1 = GET_OPCODE(pt->code[pc + j]); check(op1 == OP_GETUPVAL || op1 == OP_MOVE); } if (reg != NO_REG) /* tracing? */ pc += nup; /* do not 'execute' these pseudo-instructions */ break; } case OP_VARARG: { check((pt->is_vararg & VARARG_ISVARARG) && !(pt->is_vararg & VARARG_NEEDSARG)); b--; if (b == LUA_MULTRET) check(checkopenop(pt, pc)); checkreg(pt, a+b-1); break; } default: break; } } return pt->code[last]; } #undef check #undef checkjump #undef checkreg /* }====================================================== */ int luaG_checkcode (const Proto *pt) { return (symbexec(pt, pt->sizecode, NO_REG) != 0); } static const char *kname (Proto *p, int c) { if (ISK(c) && ttisstring(&p->k[INDEXK(c)])) return svalue(&p->k[INDEXK(c)]); else return "?"; } static const char *getobjname (lua_State *L, CallInfo *ci, int stackpos, const char **name) { if (isLua(ci)) { /* a Lua function? */ Proto *p = ci_func(ci)->l.p; int pc = currentpc(L, ci); Instruction i; *name = luaF_getlocalname(p, stackpos+1, pc); if (*name) /* is a local? */ return "local"; i = symbexec(p, pc, stackpos); /* try symbolic execution */ lua_assert(pc != -1); switch (GET_OPCODE(i)) { case OP_GETGLOBAL: { int g = GETARG_Bx(i); /* global index */ lua_assert(ttisstring(&p->k[g])); *name = svalue(&p->k[g]); return "global"; } case OP_MOVE: { int a = GETARG_A(i); int b = GETARG_B(i); /* move from `b' to `a' */ if (b < a) return getobjname(L, ci, b, name); /* get name for `b' */ break; } case OP_GETTABLE: { int k = GETARG_C(i); /* key index */ *name = kname(p, k); return "field"; } case OP_GETUPVAL: { int u = GETARG_B(i); /* upvalue index */ *name = p->upvalues ? getstr(p->upvalues[u]) : "?"; return "upvalue"; } case OP_SELF: { int k = GETARG_C(i); /* key index */ *name = kname(p, k); return "method"; } default: break; } } return NULL; /* no useful name found */ } static const char *getfuncname (lua_State *L, CallInfo *ci, const char **name) { Instruction i; if ((isLua(ci) && ci->tailcalls > 0) || !isLua(ci - 1)) return NULL; /* calling function is not Lua (or is unknown) */ ci--; /* calling function */ i = ci_func(ci)->l.p->code[currentpc(L, ci)]; if (GET_OPCODE(i) == OP_CALL || GET_OPCODE(i) == OP_TAILCALL || GET_OPCODE(i) == OP_TFORLOOP) return getobjname(L, ci, GETARG_A(i), name); else return NULL; /* no useful name can be found */ } /* only ANSI way to check whether a pointer points to an array */ static int isinstack (CallInfo *ci, const TValue *o) { StkId p; for (p = ci->base; p < ci->top; p++) if (o == p) return 1; return 0; } void luaG_typeerror (lua_State *L, const TValue *o, const char *op) { const char *name = NULL; const char *t = luaT_typenames[ttype(o)]; const char *kind = (isinstack(L->ci, o)) ? getobjname(L, L->ci, cast_int(o - L->base), &name) : NULL; if (kind) luaG_runerror(L, "attempt to %s %s " LUA_QS " (a %s value)", op, kind, name, t); else luaG_runerror(L, "attempt to %s a %s value", op, t); } void luaG_concaterror (lua_State *L, StkId p1, StkId p2) { if (ttisstring(p1) || ttisnumber(p1)) p1 = p2; lua_assert(!ttisstring(p1) && !ttisnumber(p1)); luaG_typeerror(L, p1, "concatenate"); } void luaG_aritherror (lua_State *L, const TValue *p1, const TValue *p2) { TValue temp; if (luaV_tonumber(p1, &temp) == NULL) p2 = p1; /* first operand is wrong */ luaG_typeerror(L, p2, "perform arithmetic on"); } int luaG_ordererror (lua_State *L, const TValue *p1, const TValue *p2) { const char *t1 = luaT_typenames[ttype(p1)]; const char *t2 = luaT_typenames[ttype(p2)]; if (t1[2] == t2[2]) luaG_runerror(L, "attempt to compare two %s values", t1); else luaG_runerror(L, "attempt to compare %s with %s", t1, t2); return 0; } static void addinfo (lua_State *L, const char *msg) { CallInfo *ci = L->ci; if (isLua(ci)) { /* is Lua code? */ char buff[LUA_IDSIZE]; /* add file:line information */ int line = currentline(L, ci); luaO_chunkid(buff, getstr(getluaproto(ci)->source), LUA_IDSIZE); luaO_pushfstring(L, "%s:%d: %s", buff, line, msg); } } void luaG_errormsg (lua_State *L) { if (L->errfunc != 0) { /* is there an error handling function? */ StkId errfunc = restorestack(L, L->errfunc); if (!ttisfunction(errfunc)) luaD_throw(L, LUA_ERRERR); setobjs2s(L, L->top, L->top - 1); /* move argument */ setobjs2s(L, L->top - 1, errfunc); /* push function */ incr_top(L); luaD_call(L, L->top - 2, 1); /* call it */ } luaD_throw(L, LUA_ERRRUN); } void luaG_runerror (lua_State *L, const char *fmt, ...) { va_list argp; va_start(argp, fmt); addinfo(L, luaO_pushvfstring(L, fmt, argp)); va_end(argp); luaG_errormsg(L); } redis-2.6.16/deps/lua/src/ldebug.h000066400000000000000000000020451220734223100166270ustar00rootroot00000000000000/* ** $Id: ldebug.h,v 2.3.1.1 2007/12/27 13:02:25 roberto Exp $ ** Auxiliary functions from Debug Interface module ** See Copyright Notice in lua.h */ #ifndef ldebug_h #define ldebug_h #include "lstate.h" #define pcRel(pc, p) (cast(int, (pc) - (p)->code) - 1) #define getline(f,pc) (((f)->lineinfo) ? (f)->lineinfo[pc] : 0) #define resethookcount(L) (L->hookcount = L->basehookcount) LUAI_FUNC void luaG_typeerror (lua_State *L, const TValue *o, const char *opname); LUAI_FUNC void luaG_concaterror (lua_State *L, StkId p1, StkId p2); LUAI_FUNC void luaG_aritherror (lua_State *L, const TValue *p1, const TValue *p2); LUAI_FUNC int luaG_ordererror (lua_State *L, const TValue *p1, const TValue *p2); LUAI_FUNC void luaG_runerror (lua_State *L, const char *fmt, ...); LUAI_FUNC void luaG_errormsg (lua_State *L); LUAI_FUNC int luaG_checkcode (const Proto *pt); LUAI_FUNC int luaG_checkopenop (Instruction i); #endif redis-2.6.16/deps/lua/src/ldo.c000066400000000000000000000350541220734223100161440ustar00rootroot00000000000000/* ** $Id: ldo.c,v 2.38.1.4 2012/01/18 02:27:10 roberto Exp $ ** Stack and Call structure of Lua ** See Copyright Notice in lua.h */ #include #include #include #define ldo_c #define LUA_CORE #include "lua.h" #include "ldebug.h" #include "ldo.h" #include "lfunc.h" #include "lgc.h" #include "lmem.h" #include "lobject.h" #include "lopcodes.h" #include "lparser.h" #include "lstate.h" #include "lstring.h" #include "ltable.h" #include "ltm.h" #include "lundump.h" #include "lvm.h" #include "lzio.h" /* ** {====================================================== ** Error-recovery functions ** ======================================================= */ /* chain list of long jump buffers */ struct lua_longjmp { struct lua_longjmp *previous; luai_jmpbuf b; volatile int status; /* error code */ }; void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop) { switch (errcode) { case LUA_ERRMEM: { setsvalue2s(L, oldtop, luaS_newliteral(L, MEMERRMSG)); break; } case LUA_ERRERR: { setsvalue2s(L, oldtop, luaS_newliteral(L, "error in error handling")); break; } case LUA_ERRSYNTAX: case LUA_ERRRUN: { setobjs2s(L, oldtop, L->top - 1); /* error message on current top */ break; } } L->top = oldtop + 1; } static void restore_stack_limit (lua_State *L) { lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK - 1); if (L->size_ci > LUAI_MAXCALLS) { /* there was an overflow? */ int inuse = cast_int(L->ci - L->base_ci); if (inuse + 1 < LUAI_MAXCALLS) /* can `undo' overflow? */ luaD_reallocCI(L, LUAI_MAXCALLS); } } static void resetstack (lua_State *L, int status) { L->ci = L->base_ci; L->base = L->ci->base; luaF_close(L, L->base); /* close eventual pending closures */ luaD_seterrorobj(L, status, L->base); L->nCcalls = L->baseCcalls; L->allowhook = 1; restore_stack_limit(L); L->errfunc = 0; L->errorJmp = NULL; } void luaD_throw (lua_State *L, int errcode) { if (L->errorJmp) { L->errorJmp->status = errcode; LUAI_THROW(L, L->errorJmp); } else { L->status = cast_byte(errcode); if (G(L)->panic) { resetstack(L, errcode); lua_unlock(L); G(L)->panic(L); } exit(EXIT_FAILURE); } } int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud) { struct lua_longjmp lj; lj.status = 0; lj.previous = L->errorJmp; /* chain new error handler */ L->errorJmp = &lj; LUAI_TRY(L, &lj, (*f)(L, ud); ); L->errorJmp = lj.previous; /* restore old error handler */ return lj.status; } /* }====================================================== */ static void correctstack (lua_State *L, TValue *oldstack) { CallInfo *ci; GCObject *up; L->top = (L->top - oldstack) + L->stack; for (up = L->openupval; up != NULL; up = up->gch.next) gco2uv(up)->v = (gco2uv(up)->v - oldstack) + L->stack; for (ci = L->base_ci; ci <= L->ci; ci++) { ci->top = (ci->top - oldstack) + L->stack; ci->base = (ci->base - oldstack) + L->stack; ci->func = (ci->func - oldstack) + L->stack; } L->base = (L->base - oldstack) + L->stack; } void luaD_reallocstack (lua_State *L, int newsize) { TValue *oldstack = L->stack; int realsize = newsize + 1 + EXTRA_STACK; lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK - 1); luaM_reallocvector(L, L->stack, L->stacksize, realsize, TValue); L->stacksize = realsize; L->stack_last = L->stack+newsize; correctstack(L, oldstack); } void luaD_reallocCI (lua_State *L, int newsize) { CallInfo *oldci = L->base_ci; luaM_reallocvector(L, L->base_ci, L->size_ci, newsize, CallInfo); L->size_ci = newsize; L->ci = (L->ci - oldci) + L->base_ci; L->end_ci = L->base_ci + L->size_ci - 1; } void luaD_growstack (lua_State *L, int n) { if (n <= L->stacksize) /* double size is enough? */ luaD_reallocstack(L, 2*L->stacksize); else luaD_reallocstack(L, L->stacksize + n); } static CallInfo *growCI (lua_State *L) { if (L->size_ci > LUAI_MAXCALLS) /* overflow while handling overflow? */ luaD_throw(L, LUA_ERRERR); else { luaD_reallocCI(L, 2*L->size_ci); if (L->size_ci > LUAI_MAXCALLS) luaG_runerror(L, "stack overflow"); } return ++L->ci; } void luaD_callhook (lua_State *L, int event, int line) { lua_Hook hook = L->hook; if (hook && L->allowhook) { ptrdiff_t top = savestack(L, L->top); ptrdiff_t ci_top = savestack(L, L->ci->top); lua_Debug ar; ar.event = event; ar.currentline = line; if (event == LUA_HOOKTAILRET) ar.i_ci = 0; /* tail call; no debug information about it */ else ar.i_ci = cast_int(L->ci - L->base_ci); luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */ L->ci->top = L->top + LUA_MINSTACK; lua_assert(L->ci->top <= L->stack_last); L->allowhook = 0; /* cannot call hooks inside a hook */ lua_unlock(L); (*hook)(L, &ar); lua_lock(L); lua_assert(!L->allowhook); L->allowhook = 1; L->ci->top = restorestack(L, ci_top); L->top = restorestack(L, top); } } static StkId adjust_varargs (lua_State *L, Proto *p, int actual) { int i; int nfixargs = p->numparams; Table *htab = NULL; StkId base, fixed; for (; actual < nfixargs; ++actual) setnilvalue(L->top++); #if defined(LUA_COMPAT_VARARG) if (p->is_vararg & VARARG_NEEDSARG) { /* compat. with old-style vararg? */ int nvar = actual - nfixargs; /* number of extra arguments */ lua_assert(p->is_vararg & VARARG_HASARG); luaC_checkGC(L); luaD_checkstack(L, p->maxstacksize); htab = luaH_new(L, nvar, 1); /* create `arg' table */ for (i=0; itop - nvar + i); /* store counter in field `n' */ setnvalue(luaH_setstr(L, htab, luaS_newliteral(L, "n")), cast_num(nvar)); } #endif /* move fixed parameters to final position */ fixed = L->top - actual; /* first fixed argument */ base = L->top; /* final position of first argument */ for (i=0; itop++, fixed+i); setnilvalue(fixed+i); } /* add `arg' parameter */ if (htab) { sethvalue(L, L->top++, htab); lua_assert(iswhite(obj2gco(htab))); } return base; } static StkId tryfuncTM (lua_State *L, StkId func) { const TValue *tm = luaT_gettmbyobj(L, func, TM_CALL); StkId p; ptrdiff_t funcr = savestack(L, func); if (!ttisfunction(tm)) luaG_typeerror(L, func, "call"); /* Open a hole inside the stack at `func' */ for (p = L->top; p > func; p--) setobjs2s(L, p, p-1); incr_top(L); func = restorestack(L, funcr); /* previous call may change stack */ setobj2s(L, func, tm); /* tag method is the new function to be called */ return func; } #define inc_ci(L) \ ((L->ci == L->end_ci) ? growCI(L) : \ (condhardstacktests(luaD_reallocCI(L, L->size_ci)), ++L->ci)) int luaD_precall (lua_State *L, StkId func, int nresults) { LClosure *cl; ptrdiff_t funcr; if (!ttisfunction(func)) /* `func' is not a function? */ func = tryfuncTM(L, func); /* check the `function' tag method */ funcr = savestack(L, func); cl = &clvalue(func)->l; L->ci->savedpc = L->savedpc; if (!cl->isC) { /* Lua function? prepare its call */ CallInfo *ci; StkId st, base; Proto *p = cl->p; luaD_checkstack(L, p->maxstacksize); func = restorestack(L, funcr); if (!p->is_vararg) { /* no varargs? */ base = func + 1; if (L->top > base + p->numparams) L->top = base + p->numparams; } else { /* vararg function */ int nargs = cast_int(L->top - func) - 1; base = adjust_varargs(L, p, nargs); func = restorestack(L, funcr); /* previous call may change the stack */ } ci = inc_ci(L); /* now `enter' new function */ ci->func = func; L->base = ci->base = base; ci->top = L->base + p->maxstacksize; lua_assert(ci->top <= L->stack_last); L->savedpc = p->code; /* starting point */ ci->tailcalls = 0; ci->nresults = nresults; for (st = L->top; st < ci->top; st++) setnilvalue(st); L->top = ci->top; if (L->hookmask & LUA_MASKCALL) { L->savedpc++; /* hooks assume 'pc' is already incremented */ luaD_callhook(L, LUA_HOOKCALL, -1); L->savedpc--; /* correct 'pc' */ } return PCRLUA; } else { /* if is a C function, call it */ CallInfo *ci; int n; luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */ ci = inc_ci(L); /* now `enter' new function */ ci->func = restorestack(L, funcr); L->base = ci->base = ci->func + 1; ci->top = L->top + LUA_MINSTACK; lua_assert(ci->top <= L->stack_last); ci->nresults = nresults; if (L->hookmask & LUA_MASKCALL) luaD_callhook(L, LUA_HOOKCALL, -1); lua_unlock(L); n = (*curr_func(L)->c.f)(L); /* do the actual call */ lua_lock(L); if (n < 0) /* yielding? */ return PCRYIELD; else { luaD_poscall(L, L->top - n); return PCRC; } } } static StkId callrethooks (lua_State *L, StkId firstResult) { ptrdiff_t fr = savestack(L, firstResult); /* next call may change stack */ luaD_callhook(L, LUA_HOOKRET, -1); if (f_isLua(L->ci)) { /* Lua function? */ while ((L->hookmask & LUA_MASKRET) && L->ci->tailcalls--) /* tail calls */ luaD_callhook(L, LUA_HOOKTAILRET, -1); } return restorestack(L, fr); } int luaD_poscall (lua_State *L, StkId firstResult) { StkId res; int wanted, i; CallInfo *ci; if (L->hookmask & LUA_MASKRET) firstResult = callrethooks(L, firstResult); ci = L->ci--; res = ci->func; /* res == final position of 1st result */ wanted = ci->nresults; L->base = (ci - 1)->base; /* restore base */ L->savedpc = (ci - 1)->savedpc; /* restore savedpc */ /* move results to correct place */ for (i = wanted; i != 0 && firstResult < L->top; i--) setobjs2s(L, res++, firstResult++); while (i-- > 0) setnilvalue(res++); L->top = res; return (wanted - LUA_MULTRET); /* 0 iff wanted == LUA_MULTRET */ } /* ** Call a function (C or Lua). The function to be called is at *func. ** The arguments are on the stack, right after the function. ** When returns, all the results are on the stack, starting at the original ** function position. */ void luaD_call (lua_State *L, StkId func, int nResults) { if (++L->nCcalls >= LUAI_MAXCCALLS) { if (L->nCcalls == LUAI_MAXCCALLS) luaG_runerror(L, "C stack overflow"); else if (L->nCcalls >= (LUAI_MAXCCALLS + (LUAI_MAXCCALLS>>3))) luaD_throw(L, LUA_ERRERR); /* error while handing stack error */ } if (luaD_precall(L, func, nResults) == PCRLUA) /* is a Lua function? */ luaV_execute(L, 1); /* call it */ L->nCcalls--; luaC_checkGC(L); } static void resume (lua_State *L, void *ud) { StkId firstArg = cast(StkId, ud); CallInfo *ci = L->ci; if (L->status == 0) { /* start coroutine? */ lua_assert(ci == L->base_ci && firstArg > L->base); if (luaD_precall(L, firstArg - 1, LUA_MULTRET) != PCRLUA) return; } else { /* resuming from previous yield */ lua_assert(L->status == LUA_YIELD); L->status = 0; if (!f_isLua(ci)) { /* `common' yield? */ /* finish interrupted execution of `OP_CALL' */ lua_assert(GET_OPCODE(*((ci-1)->savedpc - 1)) == OP_CALL || GET_OPCODE(*((ci-1)->savedpc - 1)) == OP_TAILCALL); if (luaD_poscall(L, firstArg)) /* complete it... */ L->top = L->ci->top; /* and correct top if not multiple results */ } else /* yielded inside a hook: just continue its execution */ L->base = L->ci->base; } luaV_execute(L, cast_int(L->ci - L->base_ci)); } static int resume_error (lua_State *L, const char *msg) { L->top = L->ci->base; setsvalue2s(L, L->top, luaS_new(L, msg)); incr_top(L); lua_unlock(L); return LUA_ERRRUN; } LUA_API int lua_resume (lua_State *L, int nargs) { int status; lua_lock(L); if (L->status != LUA_YIELD && (L->status != 0 || L->ci != L->base_ci)) return resume_error(L, "cannot resume non-suspended coroutine"); if (L->nCcalls >= LUAI_MAXCCALLS) return resume_error(L, "C stack overflow"); luai_userstateresume(L, nargs); lua_assert(L->errfunc == 0); L->baseCcalls = ++L->nCcalls; status = luaD_rawrunprotected(L, resume, L->top - nargs); if (status != 0) { /* error? */ L->status = cast_byte(status); /* mark thread as `dead' */ luaD_seterrorobj(L, status, L->top); L->ci->top = L->top; } else { lua_assert(L->nCcalls == L->baseCcalls); status = L->status; } --L->nCcalls; lua_unlock(L); return status; } LUA_API int lua_yield (lua_State *L, int nresults) { luai_userstateyield(L, nresults); lua_lock(L); if (L->nCcalls > L->baseCcalls) luaG_runerror(L, "attempt to yield across metamethod/C-call boundary"); L->base = L->top - nresults; /* protect stack slots below */ L->status = LUA_YIELD; lua_unlock(L); return -1; } int luaD_pcall (lua_State *L, Pfunc func, void *u, ptrdiff_t old_top, ptrdiff_t ef) { int status; unsigned short oldnCcalls = L->nCcalls; ptrdiff_t old_ci = saveci(L, L->ci); lu_byte old_allowhooks = L->allowhook; ptrdiff_t old_errfunc = L->errfunc; L->errfunc = ef; status = luaD_rawrunprotected(L, func, u); if (status != 0) { /* an error occurred? */ StkId oldtop = restorestack(L, old_top); luaF_close(L, oldtop); /* close eventual pending closures */ luaD_seterrorobj(L, status, oldtop); L->nCcalls = oldnCcalls; L->ci = restoreci(L, old_ci); L->base = L->ci->base; L->savedpc = L->ci->savedpc; L->allowhook = old_allowhooks; restore_stack_limit(L); } L->errfunc = old_errfunc; return status; } /* ** Execute a protected parser. */ struct SParser { /* data to `f_parser' */ ZIO *z; Mbuffer buff; /* buffer to be used by the scanner */ const char *name; }; static void f_parser (lua_State *L, void *ud) { int i; Proto *tf; Closure *cl; struct SParser *p = cast(struct SParser *, ud); int c = luaZ_lookahead(p->z); luaC_checkGC(L); tf = ((c == LUA_SIGNATURE[0]) ? luaU_undump : luaY_parser)(L, p->z, &p->buff, p->name); cl = luaF_newLclosure(L, tf->nups, hvalue(gt(L))); cl->l.p = tf; for (i = 0; i < tf->nups; i++) /* initialize eventual upvalues */ cl->l.upvals[i] = luaF_newupval(L); setclvalue(L, L->top, cl); incr_top(L); } int luaD_protectedparser (lua_State *L, ZIO *z, const char *name) { struct SParser p; int status; p.z = z; p.name = name; luaZ_initbuffer(L, &p.buff); status = luaD_pcall(L, f_parser, &p, savestack(L, L->top), L->errfunc); luaZ_freebuffer(L, &p.buff); return status; } redis-2.6.16/deps/lua/src/ldo.h000066400000000000000000000035511220734223100161460ustar00rootroot00000000000000/* ** $Id: ldo.h,v 2.7.1.1 2007/12/27 13:02:25 roberto Exp $ ** Stack and Call structure of Lua ** See Copyright Notice in lua.h */ #ifndef ldo_h #define ldo_h #include "lobject.h" #include "lstate.h" #include "lzio.h" #define luaD_checkstack(L,n) \ if ((char *)L->stack_last - (char *)L->top <= (n)*(int)sizeof(TValue)) \ luaD_growstack(L, n); \ else condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1)); #define incr_top(L) {luaD_checkstack(L,1); L->top++;} #define savestack(L,p) ((char *)(p) - (char *)L->stack) #define restorestack(L,n) ((TValue *)((char *)L->stack + (n))) #define saveci(L,p) ((char *)(p) - (char *)L->base_ci) #define restoreci(L,n) ((CallInfo *)((char *)L->base_ci + (n))) /* results from luaD_precall */ #define PCRLUA 0 /* initiated a call to a Lua function */ #define PCRC 1 /* did a call to a C function */ #define PCRYIELD 2 /* C funtion yielded */ /* type of protected functions, to be ran by `runprotected' */ typedef void (*Pfunc) (lua_State *L, void *ud); LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name); LUAI_FUNC void luaD_callhook (lua_State *L, int event, int line); LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults); LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults); LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u, ptrdiff_t oldtop, ptrdiff_t ef); LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult); LUAI_FUNC void luaD_reallocCI (lua_State *L, int newsize); LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize); LUAI_FUNC void luaD_growstack (lua_State *L, int n); LUAI_FUNC void luaD_throw (lua_State *L, int errcode); LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud); LUAI_FUNC void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop); #endif redis-2.6.16/deps/lua/src/ldump.c000066400000000000000000000060521220734223100165030ustar00rootroot00000000000000/* ** $Id: ldump.c,v 2.8.1.1 2007/12/27 13:02:25 roberto Exp $ ** save precompiled Lua chunks ** See Copyright Notice in lua.h */ #include #define ldump_c #define LUA_CORE #include "lua.h" #include "lobject.h" #include "lstate.h" #include "lundump.h" typedef struct { lua_State* L; lua_Writer writer; void* data; int strip; int status; } DumpState; #define DumpMem(b,n,size,D) DumpBlock(b,(n)*(size),D) #define DumpVar(x,D) DumpMem(&x,1,sizeof(x),D) static void DumpBlock(const void* b, size_t size, DumpState* D) { if (D->status==0) { lua_unlock(D->L); D->status=(*D->writer)(D->L,b,size,D->data); lua_lock(D->L); } } static void DumpChar(int y, DumpState* D) { char x=(char)y; DumpVar(x,D); } static void DumpInt(int x, DumpState* D) { DumpVar(x,D); } static void DumpNumber(lua_Number x, DumpState* D) { DumpVar(x,D); } static void DumpVector(const void* b, int n, size_t size, DumpState* D) { DumpInt(n,D); DumpMem(b,n,size,D); } static void DumpString(const TString* s, DumpState* D) { if (s==NULL || getstr(s)==NULL) { size_t size=0; DumpVar(size,D); } else { size_t size=s->tsv.len+1; /* include trailing '\0' */ DumpVar(size,D); DumpBlock(getstr(s),size,D); } } #define DumpCode(f,D) DumpVector(f->code,f->sizecode,sizeof(Instruction),D) static void DumpFunction(const Proto* f, const TString* p, DumpState* D); static void DumpConstants(const Proto* f, DumpState* D) { int i,n=f->sizek; DumpInt(n,D); for (i=0; ik[i]; DumpChar(ttype(o),D); switch (ttype(o)) { case LUA_TNIL: break; case LUA_TBOOLEAN: DumpChar(bvalue(o),D); break; case LUA_TNUMBER: DumpNumber(nvalue(o),D); break; case LUA_TSTRING: DumpString(rawtsvalue(o),D); break; default: lua_assert(0); /* cannot happen */ break; } } n=f->sizep; DumpInt(n,D); for (i=0; ip[i],f->source,D); } static void DumpDebug(const Proto* f, DumpState* D) { int i,n; n= (D->strip) ? 0 : f->sizelineinfo; DumpVector(f->lineinfo,n,sizeof(int),D); n= (D->strip) ? 0 : f->sizelocvars; DumpInt(n,D); for (i=0; ilocvars[i].varname,D); DumpInt(f->locvars[i].startpc,D); DumpInt(f->locvars[i].endpc,D); } n= (D->strip) ? 0 : f->sizeupvalues; DumpInt(n,D); for (i=0; iupvalues[i],D); } static void DumpFunction(const Proto* f, const TString* p, DumpState* D) { DumpString((f->source==p || D->strip) ? NULL : f->source,D); DumpInt(f->linedefined,D); DumpInt(f->lastlinedefined,D); DumpChar(f->nups,D); DumpChar(f->numparams,D); DumpChar(f->is_vararg,D); DumpChar(f->maxstacksize,D); DumpCode(f,D); DumpConstants(f,D); DumpDebug(f,D); } static void DumpHeader(DumpState* D) { char h[LUAC_HEADERSIZE]; luaU_header(h); DumpBlock(h,LUAC_HEADERSIZE,D); } /* ** dump Lua function as precompiled chunk */ int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip) { DumpState D; D.L=L; D.writer=w; D.data=data; D.strip=strip; D.status=0; DumpHeader(&D); DumpFunction(f,NULL,&D); return D.status; } redis-2.6.16/deps/lua/src/lfunc.c000066400000000000000000000110121220734223100164610ustar00rootroot00000000000000/* ** $Id: lfunc.c,v 2.12.1.2 2007/12/28 14:58:43 roberto Exp $ ** Auxiliary functions to manipulate prototypes and closures ** See Copyright Notice in lua.h */ #include #define lfunc_c #define LUA_CORE #include "lua.h" #include "lfunc.h" #include "lgc.h" #include "lmem.h" #include "lobject.h" #include "lstate.h" Closure *luaF_newCclosure (lua_State *L, int nelems, Table *e) { Closure *c = cast(Closure *, luaM_malloc(L, sizeCclosure(nelems))); luaC_link(L, obj2gco(c), LUA_TFUNCTION); c->c.isC = 1; c->c.env = e; c->c.nupvalues = cast_byte(nelems); return c; } Closure *luaF_newLclosure (lua_State *L, int nelems, Table *e) { Closure *c = cast(Closure *, luaM_malloc(L, sizeLclosure(nelems))); luaC_link(L, obj2gco(c), LUA_TFUNCTION); c->l.isC = 0; c->l.env = e; c->l.nupvalues = cast_byte(nelems); while (nelems--) c->l.upvals[nelems] = NULL; return c; } UpVal *luaF_newupval (lua_State *L) { UpVal *uv = luaM_new(L, UpVal); luaC_link(L, obj2gco(uv), LUA_TUPVAL); uv->v = &uv->u.value; setnilvalue(uv->v); return uv; } UpVal *luaF_findupval (lua_State *L, StkId level) { global_State *g = G(L); GCObject **pp = &L->openupval; UpVal *p; UpVal *uv; while (*pp != NULL && (p = ngcotouv(*pp))->v >= level) { lua_assert(p->v != &p->u.value); if (p->v == level) { /* found a corresponding upvalue? */ if (isdead(g, obj2gco(p))) /* is it dead? */ changewhite(obj2gco(p)); /* ressurect it */ return p; } pp = &p->next; } uv = luaM_new(L, UpVal); /* not found: create a new one */ uv->tt = LUA_TUPVAL; uv->marked = luaC_white(g); uv->v = level; /* current value lives in the stack */ uv->next = *pp; /* chain it in the proper position */ *pp = obj2gco(uv); uv->u.l.prev = &g->uvhead; /* double link it in `uvhead' list */ uv->u.l.next = g->uvhead.u.l.next; uv->u.l.next->u.l.prev = uv; g->uvhead.u.l.next = uv; lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv); return uv; } static void unlinkupval (UpVal *uv) { lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv); uv->u.l.next->u.l.prev = uv->u.l.prev; /* remove from `uvhead' list */ uv->u.l.prev->u.l.next = uv->u.l.next; } void luaF_freeupval (lua_State *L, UpVal *uv) { if (uv->v != &uv->u.value) /* is it open? */ unlinkupval(uv); /* remove from open list */ luaM_free(L, uv); /* free upvalue */ } void luaF_close (lua_State *L, StkId level) { UpVal *uv; global_State *g = G(L); while (L->openupval != NULL && (uv = ngcotouv(L->openupval))->v >= level) { GCObject *o = obj2gco(uv); lua_assert(!isblack(o) && uv->v != &uv->u.value); L->openupval = uv->next; /* remove from `open' list */ if (isdead(g, o)) luaF_freeupval(L, uv); /* free upvalue */ else { unlinkupval(uv); setobj(L, &uv->u.value, uv->v); uv->v = &uv->u.value; /* now current value lives here */ luaC_linkupval(L, uv); /* link upvalue into `gcroot' list */ } } } Proto *luaF_newproto (lua_State *L) { Proto *f = luaM_new(L, Proto); luaC_link(L, obj2gco(f), LUA_TPROTO); f->k = NULL; f->sizek = 0; f->p = NULL; f->sizep = 0; f->code = NULL; f->sizecode = 0; f->sizelineinfo = 0; f->sizeupvalues = 0; f->nups = 0; f->upvalues = NULL; f->numparams = 0; f->is_vararg = 0; f->maxstacksize = 0; f->lineinfo = NULL; f->sizelocvars = 0; f->locvars = NULL; f->linedefined = 0; f->lastlinedefined = 0; f->source = NULL; return f; } void luaF_freeproto (lua_State *L, Proto *f) { luaM_freearray(L, f->code, f->sizecode, Instruction); luaM_freearray(L, f->p, f->sizep, Proto *); luaM_freearray(L, f->k, f->sizek, TValue); luaM_freearray(L, f->lineinfo, f->sizelineinfo, int); luaM_freearray(L, f->locvars, f->sizelocvars, struct LocVar); luaM_freearray(L, f->upvalues, f->sizeupvalues, TString *); luaM_free(L, f); } void luaF_freeclosure (lua_State *L, Closure *c) { int size = (c->c.isC) ? sizeCclosure(c->c.nupvalues) : sizeLclosure(c->l.nupvalues); luaM_freemem(L, c, size); } /* ** Look for n-th local variable at line `line' in function `func'. ** Returns NULL if not found. */ const char *luaF_getlocalname (const Proto *f, int local_number, int pc) { int i; for (i = 0; isizelocvars && f->locvars[i].startpc <= pc; i++) { if (pc < f->locvars[i].endpc) { /* is variable active? */ local_number--; if (local_number == 0) return getstr(f->locvars[i].varname); } } return NULL; /* not found */ } redis-2.6.16/deps/lua/src/lfunc.h000066400000000000000000000021451220734223100164750ustar00rootroot00000000000000/* ** $Id: lfunc.h,v 2.4.1.1 2007/12/27 13:02:25 roberto Exp $ ** Auxiliary functions to manipulate prototypes and closures ** See Copyright Notice in lua.h */ #ifndef lfunc_h #define lfunc_h #include "lobject.h" #define sizeCclosure(n) (cast(int, sizeof(CClosure)) + \ cast(int, sizeof(TValue)*((n)-1))) #define sizeLclosure(n) (cast(int, sizeof(LClosure)) + \ cast(int, sizeof(TValue *)*((n)-1))) LUAI_FUNC Proto *luaF_newproto (lua_State *L); LUAI_FUNC Closure *luaF_newCclosure (lua_State *L, int nelems, Table *e); LUAI_FUNC Closure *luaF_newLclosure (lua_State *L, int nelems, Table *e); LUAI_FUNC UpVal *luaF_newupval (lua_State *L); LUAI_FUNC UpVal *luaF_findupval (lua_State *L, StkId level); LUAI_FUNC void luaF_close (lua_State *L, StkId level); LUAI_FUNC void luaF_freeproto (lua_State *L, Proto *f); LUAI_FUNC void luaF_freeclosure (lua_State *L, Closure *c); LUAI_FUNC void luaF_freeupval (lua_State *L, UpVal *uv); LUAI_FUNC const char *luaF_getlocalname (const Proto *func, int local_number, int pc); #endif redis-2.6.16/deps/lua/src/lgc.c000066400000000000000000000471251220734223100161350ustar00rootroot00000000000000/* ** $Id: lgc.c,v 2.38.1.2 2011/03/18 18:05:38 roberto Exp $ ** Garbage Collector ** See Copyright Notice in lua.h */ #include #define lgc_c #define LUA_CORE #include "lua.h" #include "ldebug.h" #include "ldo.h" #include "lfunc.h" #include "lgc.h" #include "lmem.h" #include "lobject.h" #include "lstate.h" #include "lstring.h" #include "ltable.h" #include "ltm.h" #define GCSTEPSIZE 1024u #define GCSWEEPMAX 40 #define GCSWEEPCOST 10 #define GCFINALIZECOST 100 #define maskmarks cast_byte(~(bitmask(BLACKBIT)|WHITEBITS)) #define makewhite(g,x) \ ((x)->gch.marked = cast_byte(((x)->gch.marked & maskmarks) | luaC_white(g))) #define white2gray(x) reset2bits((x)->gch.marked, WHITE0BIT, WHITE1BIT) #define black2gray(x) resetbit((x)->gch.marked, BLACKBIT) #define stringmark(s) reset2bits((s)->tsv.marked, WHITE0BIT, WHITE1BIT) #define isfinalized(u) testbit((u)->marked, FINALIZEDBIT) #define markfinalized(u) l_setbit((u)->marked, FINALIZEDBIT) #define KEYWEAK bitmask(KEYWEAKBIT) #define VALUEWEAK bitmask(VALUEWEAKBIT) #define markvalue(g,o) { checkconsistency(o); \ if (iscollectable(o) && iswhite(gcvalue(o))) reallymarkobject(g,gcvalue(o)); } #define markobject(g,t) { if (iswhite(obj2gco(t))) \ reallymarkobject(g, obj2gco(t)); } #define setthreshold(g) (g->GCthreshold = (g->estimate/100) * g->gcpause) static void removeentry (Node *n) { lua_assert(ttisnil(gval(n))); if (iscollectable(gkey(n))) setttype(gkey(n), LUA_TDEADKEY); /* dead key; remove it */ } static void reallymarkobject (global_State *g, GCObject *o) { lua_assert(iswhite(o) && !isdead(g, o)); white2gray(o); switch (o->gch.tt) { case LUA_TSTRING: { return; } case LUA_TUSERDATA: { Table *mt = gco2u(o)->metatable; gray2black(o); /* udata are never gray */ if (mt) markobject(g, mt); markobject(g, gco2u(o)->env); return; } case LUA_TUPVAL: { UpVal *uv = gco2uv(o); markvalue(g, uv->v); if (uv->v == &uv->u.value) /* closed? */ gray2black(o); /* open upvalues are never black */ return; } case LUA_TFUNCTION: { gco2cl(o)->c.gclist = g->gray; g->gray = o; break; } case LUA_TTABLE: { gco2h(o)->gclist = g->gray; g->gray = o; break; } case LUA_TTHREAD: { gco2th(o)->gclist = g->gray; g->gray = o; break; } case LUA_TPROTO: { gco2p(o)->gclist = g->gray; g->gray = o; break; } default: lua_assert(0); } } static void marktmu (global_State *g) { GCObject *u = g->tmudata; if (u) { do { u = u->gch.next; makewhite(g, u); /* may be marked, if left from previous GC */ reallymarkobject(g, u); } while (u != g->tmudata); } } /* move `dead' udata that need finalization to list `tmudata' */ size_t luaC_separateudata (lua_State *L, int all) { global_State *g = G(L); size_t deadmem = 0; GCObject **p = &g->mainthread->next; GCObject *curr; while ((curr = *p) != NULL) { if (!(iswhite(curr) || all) || isfinalized(gco2u(curr))) p = &curr->gch.next; /* don't bother with them */ else if (fasttm(L, gco2u(curr)->metatable, TM_GC) == NULL) { markfinalized(gco2u(curr)); /* don't need finalization */ p = &curr->gch.next; } else { /* must call its gc method */ deadmem += sizeudata(gco2u(curr)); markfinalized(gco2u(curr)); *p = curr->gch.next; /* link `curr' at the end of `tmudata' list */ if (g->tmudata == NULL) /* list is empty? */ g->tmudata = curr->gch.next = curr; /* creates a circular list */ else { curr->gch.next = g->tmudata->gch.next; g->tmudata->gch.next = curr; g->tmudata = curr; } } } return deadmem; } static int traversetable (global_State *g, Table *h) { int i; int weakkey = 0; int weakvalue = 0; const TValue *mode; if (h->metatable) markobject(g, h->metatable); mode = gfasttm(g, h->metatable, TM_MODE); if (mode && ttisstring(mode)) { /* is there a weak mode? */ weakkey = (strchr(svalue(mode), 'k') != NULL); weakvalue = (strchr(svalue(mode), 'v') != NULL); if (weakkey || weakvalue) { /* is really weak? */ h->marked &= ~(KEYWEAK | VALUEWEAK); /* clear bits */ h->marked |= cast_byte((weakkey << KEYWEAKBIT) | (weakvalue << VALUEWEAKBIT)); h->gclist = g->weak; /* must be cleared after GC, ... */ g->weak = obj2gco(h); /* ... so put in the appropriate list */ } } if (weakkey && weakvalue) return 1; if (!weakvalue) { i = h->sizearray; while (i--) markvalue(g, &h->array[i]); } i = sizenode(h); while (i--) { Node *n = gnode(h, i); lua_assert(ttype(gkey(n)) != LUA_TDEADKEY || ttisnil(gval(n))); if (ttisnil(gval(n))) removeentry(n); /* remove empty entries */ else { lua_assert(!ttisnil(gkey(n))); if (!weakkey) markvalue(g, gkey(n)); if (!weakvalue) markvalue(g, gval(n)); } } return weakkey || weakvalue; } /* ** All marks are conditional because a GC may happen while the ** prototype is still being created */ static void traverseproto (global_State *g, Proto *f) { int i; if (f->source) stringmark(f->source); for (i=0; isizek; i++) /* mark literals */ markvalue(g, &f->k[i]); for (i=0; isizeupvalues; i++) { /* mark upvalue names */ if (f->upvalues[i]) stringmark(f->upvalues[i]); } for (i=0; isizep; i++) { /* mark nested protos */ if (f->p[i]) markobject(g, f->p[i]); } for (i=0; isizelocvars; i++) { /* mark local-variable names */ if (f->locvars[i].varname) stringmark(f->locvars[i].varname); } } static void traverseclosure (global_State *g, Closure *cl) { markobject(g, cl->c.env); if (cl->c.isC) { int i; for (i=0; ic.nupvalues; i++) /* mark its upvalues */ markvalue(g, &cl->c.upvalue[i]); } else { int i; lua_assert(cl->l.nupvalues == cl->l.p->nups); markobject(g, cl->l.p); for (i=0; il.nupvalues; i++) /* mark its upvalues */ markobject(g, cl->l.upvals[i]); } } static void checkstacksizes (lua_State *L, StkId max) { int ci_used = cast_int(L->ci - L->base_ci); /* number of `ci' in use */ int s_used = cast_int(max - L->stack); /* part of stack in use */ if (L->size_ci > LUAI_MAXCALLS) /* handling overflow? */ return; /* do not touch the stacks */ if (4*ci_used < L->size_ci && 2*BASIC_CI_SIZE < L->size_ci) luaD_reallocCI(L, L->size_ci/2); /* still big enough... */ condhardstacktests(luaD_reallocCI(L, ci_used + 1)); if (4*s_used < L->stacksize && 2*(BASIC_STACK_SIZE+EXTRA_STACK) < L->stacksize) luaD_reallocstack(L, L->stacksize/2); /* still big enough... */ condhardstacktests(luaD_reallocstack(L, s_used)); } static void traversestack (global_State *g, lua_State *l) { StkId o, lim; CallInfo *ci; markvalue(g, gt(l)); lim = l->top; for (ci = l->base_ci; ci <= l->ci; ci++) { lua_assert(ci->top <= l->stack_last); if (lim < ci->top) lim = ci->top; } for (o = l->stack; o < l->top; o++) markvalue(g, o); for (; o <= lim; o++) setnilvalue(o); checkstacksizes(l, lim); } /* ** traverse one gray object, turning it to black. ** Returns `quantity' traversed. */ static l_mem propagatemark (global_State *g) { GCObject *o = g->gray; lua_assert(isgray(o)); gray2black(o); switch (o->gch.tt) { case LUA_TTABLE: { Table *h = gco2h(o); g->gray = h->gclist; if (traversetable(g, h)) /* table is weak? */ black2gray(o); /* keep it gray */ return sizeof(Table) + sizeof(TValue) * h->sizearray + sizeof(Node) * sizenode(h); } case LUA_TFUNCTION: { Closure *cl = gco2cl(o); g->gray = cl->c.gclist; traverseclosure(g, cl); return (cl->c.isC) ? sizeCclosure(cl->c.nupvalues) : sizeLclosure(cl->l.nupvalues); } case LUA_TTHREAD: { lua_State *th = gco2th(o); g->gray = th->gclist; th->gclist = g->grayagain; g->grayagain = o; black2gray(o); traversestack(g, th); return sizeof(lua_State) + sizeof(TValue) * th->stacksize + sizeof(CallInfo) * th->size_ci; } case LUA_TPROTO: { Proto *p = gco2p(o); g->gray = p->gclist; traverseproto(g, p); return sizeof(Proto) + sizeof(Instruction) * p->sizecode + sizeof(Proto *) * p->sizep + sizeof(TValue) * p->sizek + sizeof(int) * p->sizelineinfo + sizeof(LocVar) * p->sizelocvars + sizeof(TString *) * p->sizeupvalues; } default: lua_assert(0); return 0; } } static size_t propagateall (global_State *g) { size_t m = 0; while (g->gray) m += propagatemark(g); return m; } /* ** The next function tells whether a key or value can be cleared from ** a weak table. Non-collectable objects are never removed from weak ** tables. Strings behave as `values', so are never removed too. for ** other objects: if really collected, cannot keep them; for userdata ** being finalized, keep them in keys, but not in values */ static int iscleared (const TValue *o, int iskey) { if (!iscollectable(o)) return 0; if (ttisstring(o)) { stringmark(rawtsvalue(o)); /* strings are `values', so are never weak */ return 0; } return iswhite(gcvalue(o)) || (ttisuserdata(o) && (!iskey && isfinalized(uvalue(o)))); } /* ** clear collected entries from weaktables */ static void cleartable (GCObject *l) { while (l) { Table *h = gco2h(l); int i = h->sizearray; lua_assert(testbit(h->marked, VALUEWEAKBIT) || testbit(h->marked, KEYWEAKBIT)); if (testbit(h->marked, VALUEWEAKBIT)) { while (i--) { TValue *o = &h->array[i]; if (iscleared(o, 0)) /* value was collected? */ setnilvalue(o); /* remove value */ } } i = sizenode(h); while (i--) { Node *n = gnode(h, i); if (!ttisnil(gval(n)) && /* non-empty entry? */ (iscleared(key2tval(n), 1) || iscleared(gval(n), 0))) { setnilvalue(gval(n)); /* remove value ... */ removeentry(n); /* remove entry from table */ } } l = h->gclist; } } static void freeobj (lua_State *L, GCObject *o) { switch (o->gch.tt) { case LUA_TPROTO: luaF_freeproto(L, gco2p(o)); break; case LUA_TFUNCTION: luaF_freeclosure(L, gco2cl(o)); break; case LUA_TUPVAL: luaF_freeupval(L, gco2uv(o)); break; case LUA_TTABLE: luaH_free(L, gco2h(o)); break; case LUA_TTHREAD: { lua_assert(gco2th(o) != L && gco2th(o) != G(L)->mainthread); luaE_freethread(L, gco2th(o)); break; } case LUA_TSTRING: { G(L)->strt.nuse--; luaM_freemem(L, o, sizestring(gco2ts(o))); break; } case LUA_TUSERDATA: { luaM_freemem(L, o, sizeudata(gco2u(o))); break; } default: lua_assert(0); } } #define sweepwholelist(L,p) sweeplist(L,p,MAX_LUMEM) static GCObject **sweeplist (lua_State *L, GCObject **p, lu_mem count) { GCObject *curr; global_State *g = G(L); int deadmask = otherwhite(g); while ((curr = *p) != NULL && count-- > 0) { if (curr->gch.tt == LUA_TTHREAD) /* sweep open upvalues of each thread */ sweepwholelist(L, &gco2th(curr)->openupval); if ((curr->gch.marked ^ WHITEBITS) & deadmask) { /* not dead? */ lua_assert(!isdead(g, curr) || testbit(curr->gch.marked, FIXEDBIT)); makewhite(g, curr); /* make it white (for next cycle) */ p = &curr->gch.next; } else { /* must erase `curr' */ lua_assert(isdead(g, curr) || deadmask == bitmask(SFIXEDBIT)); *p = curr->gch.next; if (curr == g->rootgc) /* is the first element of the list? */ g->rootgc = curr->gch.next; /* adjust first */ freeobj(L, curr); } } return p; } static void checkSizes (lua_State *L) { global_State *g = G(L); /* check size of string hash */ if (g->strt.nuse < cast(lu_int32, g->strt.size/4) && g->strt.size > MINSTRTABSIZE*2) luaS_resize(L, g->strt.size/2); /* table is too big */ /* check size of buffer */ if (luaZ_sizebuffer(&g->buff) > LUA_MINBUFFER*2) { /* buffer too big? */ size_t newsize = luaZ_sizebuffer(&g->buff) / 2; luaZ_resizebuffer(L, &g->buff, newsize); } } static void GCTM (lua_State *L) { global_State *g = G(L); GCObject *o = g->tmudata->gch.next; /* get first element */ Udata *udata = rawgco2u(o); const TValue *tm; /* remove udata from `tmudata' */ if (o == g->tmudata) /* last element? */ g->tmudata = NULL; else g->tmudata->gch.next = udata->uv.next; udata->uv.next = g->mainthread->next; /* return it to `root' list */ g->mainthread->next = o; makewhite(g, o); tm = fasttm(L, udata->uv.metatable, TM_GC); if (tm != NULL) { lu_byte oldah = L->allowhook; lu_mem oldt = g->GCthreshold; L->allowhook = 0; /* stop debug hooks during GC tag method */ g->GCthreshold = 2*g->totalbytes; /* avoid GC steps */ setobj2s(L, L->top, tm); setuvalue(L, L->top+1, udata); L->top += 2; luaD_call(L, L->top - 2, 0); L->allowhook = oldah; /* restore hooks */ g->GCthreshold = oldt; /* restore threshold */ } } /* ** Call all GC tag methods */ void luaC_callGCTM (lua_State *L) { while (G(L)->tmudata) GCTM(L); } void luaC_freeall (lua_State *L) { global_State *g = G(L); int i; g->currentwhite = WHITEBITS | bitmask(SFIXEDBIT); /* mask to collect all elements */ sweepwholelist(L, &g->rootgc); for (i = 0; i < g->strt.size; i++) /* free all string lists */ sweepwholelist(L, &g->strt.hash[i]); } static void markmt (global_State *g) { int i; for (i=0; imt[i]) markobject(g, g->mt[i]); } /* mark root set */ static void markroot (lua_State *L) { global_State *g = G(L); g->gray = NULL; g->grayagain = NULL; g->weak = NULL; markobject(g, g->mainthread); /* make global table be traversed before main stack */ markvalue(g, gt(g->mainthread)); markvalue(g, registry(L)); markmt(g); g->gcstate = GCSpropagate; } static void remarkupvals (global_State *g) { UpVal *uv; for (uv = g->uvhead.u.l.next; uv != &g->uvhead; uv = uv->u.l.next) { lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv); if (isgray(obj2gco(uv))) markvalue(g, uv->v); } } static void atomic (lua_State *L) { global_State *g = G(L); size_t udsize; /* total size of userdata to be finalized */ /* remark occasional upvalues of (maybe) dead threads */ remarkupvals(g); /* traverse objects cautch by write barrier and by 'remarkupvals' */ propagateall(g); /* remark weak tables */ g->gray = g->weak; g->weak = NULL; lua_assert(!iswhite(obj2gco(g->mainthread))); markobject(g, L); /* mark running thread */ markmt(g); /* mark basic metatables (again) */ propagateall(g); /* remark gray again */ g->gray = g->grayagain; g->grayagain = NULL; propagateall(g); udsize = luaC_separateudata(L, 0); /* separate userdata to be finalized */ marktmu(g); /* mark `preserved' userdata */ udsize += propagateall(g); /* remark, to propagate `preserveness' */ cleartable(g->weak); /* remove collected objects from weak tables */ /* flip current white */ g->currentwhite = cast_byte(otherwhite(g)); g->sweepstrgc = 0; g->sweepgc = &g->rootgc; g->gcstate = GCSsweepstring; g->estimate = g->totalbytes - udsize; /* first estimate */ } static l_mem singlestep (lua_State *L) { global_State *g = G(L); /*lua_checkmemory(L);*/ switch (g->gcstate) { case GCSpause: { markroot(L); /* start a new collection */ return 0; } case GCSpropagate: { if (g->gray) return propagatemark(g); else { /* no more `gray' objects */ atomic(L); /* finish mark phase */ return 0; } } case GCSsweepstring: { lu_mem old = g->totalbytes; sweepwholelist(L, &g->strt.hash[g->sweepstrgc++]); if (g->sweepstrgc >= g->strt.size) /* nothing more to sweep? */ g->gcstate = GCSsweep; /* end sweep-string phase */ lua_assert(old >= g->totalbytes); g->estimate -= old - g->totalbytes; return GCSWEEPCOST; } case GCSsweep: { lu_mem old = g->totalbytes; g->sweepgc = sweeplist(L, g->sweepgc, GCSWEEPMAX); if (*g->sweepgc == NULL) { /* nothing more to sweep? */ checkSizes(L); g->gcstate = GCSfinalize; /* end sweep phase */ } lua_assert(old >= g->totalbytes); g->estimate -= old - g->totalbytes; return GCSWEEPMAX*GCSWEEPCOST; } case GCSfinalize: { if (g->tmudata) { GCTM(L); if (g->estimate > GCFINALIZECOST) g->estimate -= GCFINALIZECOST; return GCFINALIZECOST; } else { g->gcstate = GCSpause; /* end collection */ g->gcdept = 0; return 0; } } default: lua_assert(0); return 0; } } void luaC_step (lua_State *L) { global_State *g = G(L); l_mem lim = (GCSTEPSIZE/100) * g->gcstepmul; if (lim == 0) lim = (MAX_LUMEM-1)/2; /* no limit */ g->gcdept += g->totalbytes - g->GCthreshold; do { lim -= singlestep(L); if (g->gcstate == GCSpause) break; } while (lim > 0); if (g->gcstate != GCSpause) { if (g->gcdept < GCSTEPSIZE) g->GCthreshold = g->totalbytes + GCSTEPSIZE; /* - lim/g->gcstepmul;*/ else { g->gcdept -= GCSTEPSIZE; g->GCthreshold = g->totalbytes; } } else { setthreshold(g); } } void luaC_fullgc (lua_State *L) { global_State *g = G(L); if (g->gcstate <= GCSpropagate) { /* reset sweep marks to sweep all elements (returning them to white) */ g->sweepstrgc = 0; g->sweepgc = &g->rootgc; /* reset other collector lists */ g->gray = NULL; g->grayagain = NULL; g->weak = NULL; g->gcstate = GCSsweepstring; } lua_assert(g->gcstate != GCSpause && g->gcstate != GCSpropagate); /* finish any pending sweep phase */ while (g->gcstate != GCSfinalize) { lua_assert(g->gcstate == GCSsweepstring || g->gcstate == GCSsweep); singlestep(L); } markroot(L); while (g->gcstate != GCSpause) { singlestep(L); } setthreshold(g); } void luaC_barrierf (lua_State *L, GCObject *o, GCObject *v) { global_State *g = G(L); lua_assert(isblack(o) && iswhite(v) && !isdead(g, v) && !isdead(g, o)); lua_assert(g->gcstate != GCSfinalize && g->gcstate != GCSpause); lua_assert(ttype(&o->gch) != LUA_TTABLE); /* must keep invariant? */ if (g->gcstate == GCSpropagate) reallymarkobject(g, v); /* restore invariant */ else /* don't mind */ makewhite(g, o); /* mark as white just to avoid other barriers */ } void luaC_barrierback (lua_State *L, Table *t) { global_State *g = G(L); GCObject *o = obj2gco(t); lua_assert(isblack(o) && !isdead(g, o)); lua_assert(g->gcstate != GCSfinalize && g->gcstate != GCSpause); black2gray(o); /* make table gray (again) */ t->gclist = g->grayagain; g->grayagain = o; } void luaC_link (lua_State *L, GCObject *o, lu_byte tt) { global_State *g = G(L); o->gch.next = g->rootgc; g->rootgc = o; o->gch.marked = luaC_white(g); o->gch.tt = tt; } void luaC_linkupval (lua_State *L, UpVal *uv) { global_State *g = G(L); GCObject *o = obj2gco(uv); o->gch.next = g->rootgc; /* link upvalue into `rootgc' list */ g->rootgc = o; if (isgray(o)) { if (g->gcstate == GCSpropagate) { gray2black(o); /* closed upvalues need barrier */ luaC_barrier(L, uv, uv->v); } else { /* sweep phase: sweep it (turning it into white) */ makewhite(g, o); lua_assert(g->gcstate != GCSfinalize && g->gcstate != GCSpause); } } } redis-2.6.16/deps/lua/src/lgc.h000066400000000000000000000061271220734223100161370ustar00rootroot00000000000000/* ** $Id: lgc.h,v 2.15.1.1 2007/12/27 13:02:25 roberto Exp $ ** Garbage Collector ** See Copyright Notice in lua.h */ #ifndef lgc_h #define lgc_h #include "lobject.h" /* ** Possible states of the Garbage Collector */ #define GCSpause 0 #define GCSpropagate 1 #define GCSsweepstring 2 #define GCSsweep 3 #define GCSfinalize 4 /* ** some userful bit tricks */ #define resetbits(x,m) ((x) &= cast(lu_byte, ~(m))) #define setbits(x,m) ((x) |= (m)) #define testbits(x,m) ((x) & (m)) #define bitmask(b) (1<<(b)) #define bit2mask(b1,b2) (bitmask(b1) | bitmask(b2)) #define l_setbit(x,b) setbits(x, bitmask(b)) #define resetbit(x,b) resetbits(x, bitmask(b)) #define testbit(x,b) testbits(x, bitmask(b)) #define set2bits(x,b1,b2) setbits(x, (bit2mask(b1, b2))) #define reset2bits(x,b1,b2) resetbits(x, (bit2mask(b1, b2))) #define test2bits(x,b1,b2) testbits(x, (bit2mask(b1, b2))) /* ** Layout for bit use in `marked' field: ** bit 0 - object is white (type 0) ** bit 1 - object is white (type 1) ** bit 2 - object is black ** bit 3 - for userdata: has been finalized ** bit 3 - for tables: has weak keys ** bit 4 - for tables: has weak values ** bit 5 - object is fixed (should not be collected) ** bit 6 - object is "super" fixed (only the main thread) */ #define WHITE0BIT 0 #define WHITE1BIT 1 #define BLACKBIT 2 #define FINALIZEDBIT 3 #define KEYWEAKBIT 3 #define VALUEWEAKBIT 4 #define FIXEDBIT 5 #define SFIXEDBIT 6 #define WHITEBITS bit2mask(WHITE0BIT, WHITE1BIT) #define iswhite(x) test2bits((x)->gch.marked, WHITE0BIT, WHITE1BIT) #define isblack(x) testbit((x)->gch.marked, BLACKBIT) #define isgray(x) (!isblack(x) && !iswhite(x)) #define otherwhite(g) (g->currentwhite ^ WHITEBITS) #define isdead(g,v) ((v)->gch.marked & otherwhite(g) & WHITEBITS) #define changewhite(x) ((x)->gch.marked ^= WHITEBITS) #define gray2black(x) l_setbit((x)->gch.marked, BLACKBIT) #define valiswhite(x) (iscollectable(x) && iswhite(gcvalue(x))) #define luaC_white(g) cast(lu_byte, (g)->currentwhite & WHITEBITS) #define luaC_checkGC(L) { \ condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1)); \ if (G(L)->totalbytes >= G(L)->GCthreshold) \ luaC_step(L); } #define luaC_barrier(L,p,v) { if (valiswhite(v) && isblack(obj2gco(p))) \ luaC_barrierf(L,obj2gco(p),gcvalue(v)); } #define luaC_barriert(L,t,v) { if (valiswhite(v) && isblack(obj2gco(t))) \ luaC_barrierback(L,t); } #define luaC_objbarrier(L,p,o) \ { if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) \ luaC_barrierf(L,obj2gco(p),obj2gco(o)); } #define luaC_objbarriert(L,t,o) \ { if (iswhite(obj2gco(o)) && isblack(obj2gco(t))) luaC_barrierback(L,t); } LUAI_FUNC size_t luaC_separateudata (lua_State *L, int all); LUAI_FUNC void luaC_callGCTM (lua_State *L); LUAI_FUNC void luaC_freeall (lua_State *L); LUAI_FUNC void luaC_step (lua_State *L); LUAI_FUNC void luaC_fullgc (lua_State *L); LUAI_FUNC void luaC_link (lua_State *L, GCObject *o, lu_byte tt); LUAI_FUNC void luaC_linkupval (lua_State *L, UpVal *uv); LUAI_FUNC void luaC_barrierf (lua_State *L, GCObject *o, GCObject *v); LUAI_FUNC void luaC_barrierback (lua_State *L, Table *t); #endif redis-2.6.16/deps/lua/src/linit.c000066400000000000000000000013751220734223100165040ustar00rootroot00000000000000/* ** $Id: linit.c,v 1.14.1.1 2007/12/27 13:02:25 roberto Exp $ ** Initialization of libraries for lua.c ** See Copyright Notice in lua.h */ #define linit_c #define LUA_LIB #include "lua.h" #include "lualib.h" #include "lauxlib.h" static const luaL_Reg lualibs[] = { {"", luaopen_base}, {LUA_LOADLIBNAME, luaopen_package}, {LUA_TABLIBNAME, luaopen_table}, {LUA_IOLIBNAME, luaopen_io}, {LUA_OSLIBNAME, luaopen_os}, {LUA_STRLIBNAME, luaopen_string}, {LUA_MATHLIBNAME, luaopen_math}, {LUA_DBLIBNAME, luaopen_debug}, {NULL, NULL} }; LUALIB_API void luaL_openlibs (lua_State *L) { const luaL_Reg *lib = lualibs; for (; lib->func; lib++) { lua_pushcfunction(L, lib->func); lua_pushstring(L, lib->name); lua_call(L, 1, 0); } } redis-2.6.16/deps/lua/src/liolib.c000066400000000000000000000322321220734223100166330ustar00rootroot00000000000000/* ** $Id: liolib.c,v 2.73.1.4 2010/05/14 15:33:51 roberto Exp $ ** Standard I/O (and system) library ** See Copyright Notice in lua.h */ #include #include #include #include #define liolib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #include "lualib.h" #define IO_INPUT 1 #define IO_OUTPUT 2 static const char *const fnames[] = {"input", "output"}; static int pushresult (lua_State *L, int i, const char *filename) { int en = errno; /* calls to Lua API may change this value */ if (i) { lua_pushboolean(L, 1); return 1; } else { lua_pushnil(L); if (filename) lua_pushfstring(L, "%s: %s", filename, strerror(en)); else lua_pushfstring(L, "%s", strerror(en)); lua_pushinteger(L, en); return 3; } } static void fileerror (lua_State *L, int arg, const char *filename) { lua_pushfstring(L, "%s: %s", filename, strerror(errno)); luaL_argerror(L, arg, lua_tostring(L, -1)); } #define tofilep(L) ((FILE **)luaL_checkudata(L, 1, LUA_FILEHANDLE)) static int io_type (lua_State *L) { void *ud; luaL_checkany(L, 1); ud = lua_touserdata(L, 1); lua_getfield(L, LUA_REGISTRYINDEX, LUA_FILEHANDLE); if (ud == NULL || !lua_getmetatable(L, 1) || !lua_rawequal(L, -2, -1)) lua_pushnil(L); /* not a file */ else if (*((FILE **)ud) == NULL) lua_pushliteral(L, "closed file"); else lua_pushliteral(L, "file"); return 1; } static FILE *tofile (lua_State *L) { FILE **f = tofilep(L); if (*f == NULL) luaL_error(L, "attempt to use a closed file"); return *f; } /* ** When creating file handles, always creates a `closed' file handle ** before opening the actual file; so, if there is a memory error, the ** file is not left opened. */ static FILE **newfile (lua_State *L) { FILE **pf = (FILE **)lua_newuserdata(L, sizeof(FILE *)); *pf = NULL; /* file handle is currently `closed' */ luaL_getmetatable(L, LUA_FILEHANDLE); lua_setmetatable(L, -2); return pf; } /* ** function to (not) close the standard files stdin, stdout, and stderr */ static int io_noclose (lua_State *L) { lua_pushnil(L); lua_pushliteral(L, "cannot close standard file"); return 2; } /* ** function to close 'popen' files */ static int io_pclose (lua_State *L) { FILE **p = tofilep(L); int ok = lua_pclose(L, *p); *p = NULL; return pushresult(L, ok, NULL); } /* ** function to close regular files */ static int io_fclose (lua_State *L) { FILE **p = tofilep(L); int ok = (fclose(*p) == 0); *p = NULL; return pushresult(L, ok, NULL); } static int aux_close (lua_State *L) { lua_getfenv(L, 1); lua_getfield(L, -1, "__close"); return (lua_tocfunction(L, -1))(L); } static int io_close (lua_State *L) { if (lua_isnone(L, 1)) lua_rawgeti(L, LUA_ENVIRONINDEX, IO_OUTPUT); tofile(L); /* make sure argument is a file */ return aux_close(L); } static int io_gc (lua_State *L) { FILE *f = *tofilep(L); /* ignore closed files */ if (f != NULL) aux_close(L); return 0; } static int io_tostring (lua_State *L) { FILE *f = *tofilep(L); if (f == NULL) lua_pushliteral(L, "file (closed)"); else lua_pushfstring(L, "file (%p)", f); return 1; } static int io_open (lua_State *L) { const char *filename = luaL_checkstring(L, 1); const char *mode = luaL_optstring(L, 2, "r"); FILE **pf = newfile(L); *pf = fopen(filename, mode); return (*pf == NULL) ? pushresult(L, 0, filename) : 1; } /* ** this function has a separated environment, which defines the ** correct __close for 'popen' files */ static int io_popen (lua_State *L) { const char *filename = luaL_checkstring(L, 1); const char *mode = luaL_optstring(L, 2, "r"); FILE **pf = newfile(L); *pf = lua_popen(L, filename, mode); return (*pf == NULL) ? pushresult(L, 0, filename) : 1; } static int io_tmpfile (lua_State *L) { FILE **pf = newfile(L); *pf = tmpfile(); return (*pf == NULL) ? pushresult(L, 0, NULL) : 1; } static FILE *getiofile (lua_State *L, int findex) { FILE *f; lua_rawgeti(L, LUA_ENVIRONINDEX, findex); f = *(FILE **)lua_touserdata(L, -1); if (f == NULL) luaL_error(L, "standard %s file is closed", fnames[findex - 1]); return f; } static int g_iofile (lua_State *L, int f, const char *mode) { if (!lua_isnoneornil(L, 1)) { const char *filename = lua_tostring(L, 1); if (filename) { FILE **pf = newfile(L); *pf = fopen(filename, mode); if (*pf == NULL) fileerror(L, 1, filename); } else { tofile(L); /* check that it's a valid file handle */ lua_pushvalue(L, 1); } lua_rawseti(L, LUA_ENVIRONINDEX, f); } /* return current value */ lua_rawgeti(L, LUA_ENVIRONINDEX, f); return 1; } static int io_input (lua_State *L) { return g_iofile(L, IO_INPUT, "r"); } static int io_output (lua_State *L) { return g_iofile(L, IO_OUTPUT, "w"); } static int io_readline (lua_State *L); static void aux_lines (lua_State *L, int idx, int toclose) { lua_pushvalue(L, idx); lua_pushboolean(L, toclose); /* close/not close file when finished */ lua_pushcclosure(L, io_readline, 2); } static int f_lines (lua_State *L) { tofile(L); /* check that it's a valid file handle */ aux_lines(L, 1, 0); return 1; } static int io_lines (lua_State *L) { if (lua_isnoneornil(L, 1)) { /* no arguments? */ /* will iterate over default input */ lua_rawgeti(L, LUA_ENVIRONINDEX, IO_INPUT); return f_lines(L); } else { const char *filename = luaL_checkstring(L, 1); FILE **pf = newfile(L); *pf = fopen(filename, "r"); if (*pf == NULL) fileerror(L, 1, filename); aux_lines(L, lua_gettop(L), 1); return 1; } } /* ** {====================================================== ** READ ** ======================================================= */ static int read_number (lua_State *L, FILE *f) { lua_Number d; if (fscanf(f, LUA_NUMBER_SCAN, &d) == 1) { lua_pushnumber(L, d); return 1; } else { lua_pushnil(L); /* "result" to be removed */ return 0; /* read fails */ } } static int test_eof (lua_State *L, FILE *f) { int c = getc(f); ungetc(c, f); lua_pushlstring(L, NULL, 0); return (c != EOF); } static int read_line (lua_State *L, FILE *f) { luaL_Buffer b; luaL_buffinit(L, &b); for (;;) { size_t l; char *p = luaL_prepbuffer(&b); if (fgets(p, LUAL_BUFFERSIZE, f) == NULL) { /* eof? */ luaL_pushresult(&b); /* close buffer */ return (lua_objlen(L, -1) > 0); /* check whether read something */ } l = strlen(p); if (l == 0 || p[l-1] != '\n') luaL_addsize(&b, l); else { luaL_addsize(&b, l - 1); /* do not include `eol' */ luaL_pushresult(&b); /* close buffer */ return 1; /* read at least an `eol' */ } } } static int read_chars (lua_State *L, FILE *f, size_t n) { size_t rlen; /* how much to read */ size_t nr; /* number of chars actually read */ luaL_Buffer b; luaL_buffinit(L, &b); rlen = LUAL_BUFFERSIZE; /* try to read that much each time */ do { char *p = luaL_prepbuffer(&b); if (rlen > n) rlen = n; /* cannot read more than asked */ nr = fread(p, sizeof(char), rlen, f); luaL_addsize(&b, nr); n -= nr; /* still have to read `n' chars */ } while (n > 0 && nr == rlen); /* until end of count or eof */ luaL_pushresult(&b); /* close buffer */ return (n == 0 || lua_objlen(L, -1) > 0); } static int g_read (lua_State *L, FILE *f, int first) { int nargs = lua_gettop(L) - 1; int success; int n; clearerr(f); if (nargs == 0) { /* no arguments? */ success = read_line(L, f); n = first+1; /* to return 1 result */ } else { /* ensure stack space for all results and for auxlib's buffer */ luaL_checkstack(L, nargs+LUA_MINSTACK, "too many arguments"); success = 1; for (n = first; nargs-- && success; n++) { if (lua_type(L, n) == LUA_TNUMBER) { size_t l = (size_t)lua_tointeger(L, n); success = (l == 0) ? test_eof(L, f) : read_chars(L, f, l); } else { const char *p = lua_tostring(L, n); luaL_argcheck(L, p && p[0] == '*', n, "invalid option"); switch (p[1]) { case 'n': /* number */ success = read_number(L, f); break; case 'l': /* line */ success = read_line(L, f); break; case 'a': /* file */ read_chars(L, f, ~((size_t)0)); /* read MAX_SIZE_T chars */ success = 1; /* always success */ break; default: return luaL_argerror(L, n, "invalid format"); } } } } if (ferror(f)) return pushresult(L, 0, NULL); if (!success) { lua_pop(L, 1); /* remove last result */ lua_pushnil(L); /* push nil instead */ } return n - first; } static int io_read (lua_State *L) { return g_read(L, getiofile(L, IO_INPUT), 1); } static int f_read (lua_State *L) { return g_read(L, tofile(L), 2); } static int io_readline (lua_State *L) { FILE *f = *(FILE **)lua_touserdata(L, lua_upvalueindex(1)); int sucess; if (f == NULL) /* file is already closed? */ luaL_error(L, "file is already closed"); sucess = read_line(L, f); if (ferror(f)) return luaL_error(L, "%s", strerror(errno)); if (sucess) return 1; else { /* EOF */ if (lua_toboolean(L, lua_upvalueindex(2))) { /* generator created file? */ lua_settop(L, 0); lua_pushvalue(L, lua_upvalueindex(1)); aux_close(L); /* close it */ } return 0; } } /* }====================================================== */ static int g_write (lua_State *L, FILE *f, int arg) { int nargs = lua_gettop(L) - 1; int status = 1; for (; nargs--; arg++) { if (lua_type(L, arg) == LUA_TNUMBER) { /* optimization: could be done exactly as for strings */ status = status && fprintf(f, LUA_NUMBER_FMT, lua_tonumber(L, arg)) > 0; } else { size_t l; const char *s = luaL_checklstring(L, arg, &l); status = status && (fwrite(s, sizeof(char), l, f) == l); } } return pushresult(L, status, NULL); } static int io_write (lua_State *L) { return g_write(L, getiofile(L, IO_OUTPUT), 1); } static int f_write (lua_State *L) { return g_write(L, tofile(L), 2); } static int f_seek (lua_State *L) { static const int mode[] = {SEEK_SET, SEEK_CUR, SEEK_END}; static const char *const modenames[] = {"set", "cur", "end", NULL}; FILE *f = tofile(L); int op = luaL_checkoption(L, 2, "cur", modenames); long offset = luaL_optlong(L, 3, 0); op = fseek(f, offset, mode[op]); if (op) return pushresult(L, 0, NULL); /* error */ else { lua_pushinteger(L, ftell(f)); return 1; } } static int f_setvbuf (lua_State *L) { static const int mode[] = {_IONBF, _IOFBF, _IOLBF}; static const char *const modenames[] = {"no", "full", "line", NULL}; FILE *f = tofile(L); int op = luaL_checkoption(L, 2, NULL, modenames); lua_Integer sz = luaL_optinteger(L, 3, LUAL_BUFFERSIZE); int res = setvbuf(f, NULL, mode[op], sz); return pushresult(L, res == 0, NULL); } static int io_flush (lua_State *L) { return pushresult(L, fflush(getiofile(L, IO_OUTPUT)) == 0, NULL); } static int f_flush (lua_State *L) { return pushresult(L, fflush(tofile(L)) == 0, NULL); } static const luaL_Reg iolib[] = { {"close", io_close}, {"flush", io_flush}, {"input", io_input}, {"lines", io_lines}, {"open", io_open}, {"output", io_output}, {"popen", io_popen}, {"read", io_read}, {"tmpfile", io_tmpfile}, {"type", io_type}, {"write", io_write}, {NULL, NULL} }; static const luaL_Reg flib[] = { {"close", io_close}, {"flush", f_flush}, {"lines", f_lines}, {"read", f_read}, {"seek", f_seek}, {"setvbuf", f_setvbuf}, {"write", f_write}, {"__gc", io_gc}, {"__tostring", io_tostring}, {NULL, NULL} }; static void createmeta (lua_State *L) { luaL_newmetatable(L, LUA_FILEHANDLE); /* create metatable for file handles */ lua_pushvalue(L, -1); /* push metatable */ lua_setfield(L, -2, "__index"); /* metatable.__index = metatable */ luaL_register(L, NULL, flib); /* file methods */ } static void createstdfile (lua_State *L, FILE *f, int k, const char *fname) { *newfile(L) = f; if (k > 0) { lua_pushvalue(L, -1); lua_rawseti(L, LUA_ENVIRONINDEX, k); } lua_pushvalue(L, -2); /* copy environment */ lua_setfenv(L, -2); /* set it */ lua_setfield(L, -3, fname); } static void newfenv (lua_State *L, lua_CFunction cls) { lua_createtable(L, 0, 1); lua_pushcfunction(L, cls); lua_setfield(L, -2, "__close"); } LUALIB_API int luaopen_io (lua_State *L) { createmeta(L); /* create (private) environment (with fields IO_INPUT, IO_OUTPUT, __close) */ newfenv(L, io_fclose); lua_replace(L, LUA_ENVIRONINDEX); /* open library */ luaL_register(L, LUA_IOLIBNAME, iolib); /* create (and set) default files */ newfenv(L, io_noclose); /* close function for default files */ createstdfile(L, stdin, IO_INPUT, "stdin"); createstdfile(L, stdout, IO_OUTPUT, "stdout"); createstdfile(L, stderr, 0, "stderr"); lua_pop(L, 1); /* pop environment for default files */ lua_getfield(L, -1, "popen"); newfenv(L, io_pclose); /* create environment for 'popen' */ lua_setfenv(L, -2); /* set fenv for 'popen' */ lua_pop(L, 1); /* pop 'popen' */ return 1; } redis-2.6.16/deps/lua/src/llex.c000066400000000000000000000303251220734223100163260ustar00rootroot00000000000000/* ** $Id: llex.c,v 2.20.1.2 2009/11/23 14:58:22 roberto Exp $ ** Lexical Analyzer ** See Copyright Notice in lua.h */ #include #include #include #define llex_c #define LUA_CORE #include "lua.h" #include "ldo.h" #include "llex.h" #include "lobject.h" #include "lparser.h" #include "lstate.h" #include "lstring.h" #include "ltable.h" #include "lzio.h" #define next(ls) (ls->current = zgetc(ls->z)) #define currIsNewline(ls) (ls->current == '\n' || ls->current == '\r') /* ORDER RESERVED */ const char *const luaX_tokens [] = { "and", "break", "do", "else", "elseif", "end", "false", "for", "function", "if", "in", "local", "nil", "not", "or", "repeat", "return", "then", "true", "until", "while", "..", "...", "==", ">=", "<=", "~=", "", "", "", "", NULL }; #define save_and_next(ls) (save(ls, ls->current), next(ls)) static void save (LexState *ls, int c) { Mbuffer *b = ls->buff; if (b->n + 1 > b->buffsize) { size_t newsize; if (b->buffsize >= MAX_SIZET/2) luaX_lexerror(ls, "lexical element too long", 0); newsize = b->buffsize * 2; luaZ_resizebuffer(ls->L, b, newsize); } b->buffer[b->n++] = cast(char, c); } void luaX_init (lua_State *L) { int i; for (i=0; itsv.reserved = cast_byte(i+1); /* reserved word */ } } #define MAXSRC 80 const char *luaX_token2str (LexState *ls, int token) { if (token < FIRST_RESERVED) { lua_assert(token == cast(unsigned char, token)); return (iscntrl(token)) ? luaO_pushfstring(ls->L, "char(%d)", token) : luaO_pushfstring(ls->L, "%c", token); } else return luaX_tokens[token-FIRST_RESERVED]; } static const char *txtToken (LexState *ls, int token) { switch (token) { case TK_NAME: case TK_STRING: case TK_NUMBER: save(ls, '\0'); return luaZ_buffer(ls->buff); default: return luaX_token2str(ls, token); } } void luaX_lexerror (LexState *ls, const char *msg, int token) { char buff[MAXSRC]; luaO_chunkid(buff, getstr(ls->source), MAXSRC); msg = luaO_pushfstring(ls->L, "%s:%d: %s", buff, ls->linenumber, msg); if (token) luaO_pushfstring(ls->L, "%s near " LUA_QS, msg, txtToken(ls, token)); luaD_throw(ls->L, LUA_ERRSYNTAX); } void luaX_syntaxerror (LexState *ls, const char *msg) { luaX_lexerror(ls, msg, ls->t.token); } TString *luaX_newstring (LexState *ls, const char *str, size_t l) { lua_State *L = ls->L; TString *ts = luaS_newlstr(L, str, l); TValue *o = luaH_setstr(L, ls->fs->h, ts); /* entry for `str' */ if (ttisnil(o)) { setbvalue(o, 1); /* make sure `str' will not be collected */ luaC_checkGC(L); } return ts; } static void inclinenumber (LexState *ls) { int old = ls->current; lua_assert(currIsNewline(ls)); next(ls); /* skip `\n' or `\r' */ if (currIsNewline(ls) && ls->current != old) next(ls); /* skip `\n\r' or `\r\n' */ if (++ls->linenumber >= MAX_INT) luaX_syntaxerror(ls, "chunk has too many lines"); } void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source) { ls->decpoint = '.'; ls->L = L; ls->lookahead.token = TK_EOS; /* no look-ahead token */ ls->z = z; ls->fs = NULL; ls->linenumber = 1; ls->lastline = 1; ls->source = source; luaZ_resizebuffer(ls->L, ls->buff, LUA_MINBUFFER); /* initialize buffer */ next(ls); /* read first char */ } /* ** ======================================================= ** LEXICAL ANALYZER ** ======================================================= */ static int check_next (LexState *ls, const char *set) { if (!strchr(set, ls->current)) return 0; save_and_next(ls); return 1; } static void buffreplace (LexState *ls, char from, char to) { size_t n = luaZ_bufflen(ls->buff); char *p = luaZ_buffer(ls->buff); while (n--) if (p[n] == from) p[n] = to; } static void trydecpoint (LexState *ls, SemInfo *seminfo) { /* format error: try to update decimal point separator */ struct lconv *cv = localeconv(); char old = ls->decpoint; ls->decpoint = (cv ? cv->decimal_point[0] : '.'); buffreplace(ls, old, ls->decpoint); /* try updated decimal separator */ if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) { /* format error with correct decimal point: no more options */ buffreplace(ls, ls->decpoint, '.'); /* undo change (for error message) */ luaX_lexerror(ls, "malformed number", TK_NUMBER); } } /* LUA_NUMBER */ static void read_numeral (LexState *ls, SemInfo *seminfo) { lua_assert(isdigit(ls->current)); do { save_and_next(ls); } while (isdigit(ls->current) || ls->current == '.'); if (check_next(ls, "Ee")) /* `E'? */ check_next(ls, "+-"); /* optional exponent sign */ while (isalnum(ls->current) || ls->current == '_') save_and_next(ls); save(ls, '\0'); buffreplace(ls, '.', ls->decpoint); /* follow locale for decimal point */ if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) /* format error? */ trydecpoint(ls, seminfo); /* try to update decimal point separator */ } static int skip_sep (LexState *ls) { int count = 0; int s = ls->current; lua_assert(s == '[' || s == ']'); save_and_next(ls); while (ls->current == '=') { save_and_next(ls); count++; } return (ls->current == s) ? count : (-count) - 1; } static void read_long_string (LexState *ls, SemInfo *seminfo, int sep) { int cont = 0; (void)(cont); /* avoid warnings when `cont' is not used */ save_and_next(ls); /* skip 2nd `[' */ if (currIsNewline(ls)) /* string starts with a newline? */ inclinenumber(ls); /* skip it */ for (;;) { switch (ls->current) { case EOZ: luaX_lexerror(ls, (seminfo) ? "unfinished long string" : "unfinished long comment", TK_EOS); break; /* to avoid warnings */ #if defined(LUA_COMPAT_LSTR) case '[': { if (skip_sep(ls) == sep) { save_and_next(ls); /* skip 2nd `[' */ cont++; #if LUA_COMPAT_LSTR == 1 if (sep == 0) luaX_lexerror(ls, "nesting of [[...]] is deprecated", '['); #endif } break; } #endif case ']': { if (skip_sep(ls) == sep) { save_and_next(ls); /* skip 2nd `]' */ #if defined(LUA_COMPAT_LSTR) && LUA_COMPAT_LSTR == 2 cont--; if (sep == 0 && cont >= 0) break; #endif goto endloop; } break; } case '\n': case '\r': { save(ls, '\n'); inclinenumber(ls); if (!seminfo) luaZ_resetbuffer(ls->buff); /* avoid wasting space */ break; } default: { if (seminfo) save_and_next(ls); else next(ls); } } } endloop: if (seminfo) seminfo->ts = luaX_newstring(ls, luaZ_buffer(ls->buff) + (2 + sep), luaZ_bufflen(ls->buff) - 2*(2 + sep)); } static void read_string (LexState *ls, int del, SemInfo *seminfo) { save_and_next(ls); while (ls->current != del) { switch (ls->current) { case EOZ: luaX_lexerror(ls, "unfinished string", TK_EOS); continue; /* to avoid warnings */ case '\n': case '\r': luaX_lexerror(ls, "unfinished string", TK_STRING); continue; /* to avoid warnings */ case '\\': { int c; next(ls); /* do not save the `\' */ switch (ls->current) { case 'a': c = '\a'; break; case 'b': c = '\b'; break; case 'f': c = '\f'; break; case 'n': c = '\n'; break; case 'r': c = '\r'; break; case 't': c = '\t'; break; case 'v': c = '\v'; break; case '\n': /* go through */ case '\r': save(ls, '\n'); inclinenumber(ls); continue; case EOZ: continue; /* will raise an error next loop */ default: { if (!isdigit(ls->current)) save_and_next(ls); /* handles \\, \", \', and \? */ else { /* \xxx */ int i = 0; c = 0; do { c = 10*c + (ls->current-'0'); next(ls); } while (++i<3 && isdigit(ls->current)); if (c > UCHAR_MAX) luaX_lexerror(ls, "escape sequence too large", TK_STRING); save(ls, c); } continue; } } save(ls, c); next(ls); continue; } default: save_and_next(ls); } } save_and_next(ls); /* skip delimiter */ seminfo->ts = luaX_newstring(ls, luaZ_buffer(ls->buff) + 1, luaZ_bufflen(ls->buff) - 2); } static int llex (LexState *ls, SemInfo *seminfo) { luaZ_resetbuffer(ls->buff); for (;;) { switch (ls->current) { case '\n': case '\r': { inclinenumber(ls); continue; } case '-': { next(ls); if (ls->current != '-') return '-'; /* else is a comment */ next(ls); if (ls->current == '[') { int sep = skip_sep(ls); luaZ_resetbuffer(ls->buff); /* `skip_sep' may dirty the buffer */ if (sep >= 0) { read_long_string(ls, NULL, sep); /* long comment */ luaZ_resetbuffer(ls->buff); continue; } } /* else short comment */ while (!currIsNewline(ls) && ls->current != EOZ) next(ls); continue; } case '[': { int sep = skip_sep(ls); if (sep >= 0) { read_long_string(ls, seminfo, sep); return TK_STRING; } else if (sep == -1) return '['; else luaX_lexerror(ls, "invalid long string delimiter", TK_STRING); } case '=': { next(ls); if (ls->current != '=') return '='; else { next(ls); return TK_EQ; } } case '<': { next(ls); if (ls->current != '=') return '<'; else { next(ls); return TK_LE; } } case '>': { next(ls); if (ls->current != '=') return '>'; else { next(ls); return TK_GE; } } case '~': { next(ls); if (ls->current != '=') return '~'; else { next(ls); return TK_NE; } } case '"': case '\'': { read_string(ls, ls->current, seminfo); return TK_STRING; } case '.': { save_and_next(ls); if (check_next(ls, ".")) { if (check_next(ls, ".")) return TK_DOTS; /* ... */ else return TK_CONCAT; /* .. */ } else if (!isdigit(ls->current)) return '.'; else { read_numeral(ls, seminfo); return TK_NUMBER; } } case EOZ: { return TK_EOS; } default: { if (isspace(ls->current)) { lua_assert(!currIsNewline(ls)); next(ls); continue; } else if (isdigit(ls->current)) { read_numeral(ls, seminfo); return TK_NUMBER; } else if (isalpha(ls->current) || ls->current == '_') { /* identifier or reserved word */ TString *ts; do { save_and_next(ls); } while (isalnum(ls->current) || ls->current == '_'); ts = luaX_newstring(ls, luaZ_buffer(ls->buff), luaZ_bufflen(ls->buff)); if (ts->tsv.reserved > 0) /* reserved word? */ return ts->tsv.reserved - 1 + FIRST_RESERVED; else { seminfo->ts = ts; return TK_NAME; } } else { int c = ls->current; next(ls); return c; /* single-char tokens (+ - / ...) */ } } } } } void luaX_next (LexState *ls) { ls->lastline = ls->linenumber; if (ls->lookahead.token != TK_EOS) { /* is there a look-ahead token? */ ls->t = ls->lookahead; /* use this one */ ls->lookahead.token = TK_EOS; /* and discharge it */ } else ls->t.token = llex(ls, &ls->t.seminfo); /* read next token */ } void luaX_lookahead (LexState *ls) { lua_assert(ls->lookahead.token == TK_EOS); ls->lookahead.token = llex(ls, &ls->lookahead.seminfo); } redis-2.6.16/deps/lua/src/llex.h000066400000000000000000000042011220734223100163250ustar00rootroot00000000000000/* ** $Id: llex.h,v 1.58.1.1 2007/12/27 13:02:25 roberto Exp $ ** Lexical Analyzer ** See Copyright Notice in lua.h */ #ifndef llex_h #define llex_h #include "lobject.h" #include "lzio.h" #define FIRST_RESERVED 257 /* maximum length of a reserved word */ #define TOKEN_LEN (sizeof("function")/sizeof(char)) /* * WARNING: if you change the order of this enumeration, * grep "ORDER RESERVED" */ enum RESERVED { /* terminal symbols denoted by reserved words */ TK_AND = FIRST_RESERVED, TK_BREAK, TK_DO, TK_ELSE, TK_ELSEIF, TK_END, TK_FALSE, TK_FOR, TK_FUNCTION, TK_IF, TK_IN, TK_LOCAL, TK_NIL, TK_NOT, TK_OR, TK_REPEAT, TK_RETURN, TK_THEN, TK_TRUE, TK_UNTIL, TK_WHILE, /* other terminal symbols */ TK_CONCAT, TK_DOTS, TK_EQ, TK_GE, TK_LE, TK_NE, TK_NUMBER, TK_NAME, TK_STRING, TK_EOS }; /* number of reserved words */ #define NUM_RESERVED (cast(int, TK_WHILE-FIRST_RESERVED+1)) /* array with token `names' */ LUAI_DATA const char *const luaX_tokens []; typedef union { lua_Number r; TString *ts; } SemInfo; /* semantics information */ typedef struct Token { int token; SemInfo seminfo; } Token; typedef struct LexState { int current; /* current character (charint) */ int linenumber; /* input line counter */ int lastline; /* line of last token `consumed' */ Token t; /* current token */ Token lookahead; /* look ahead token */ struct FuncState *fs; /* `FuncState' is private to the parser */ struct lua_State *L; ZIO *z; /* input stream */ Mbuffer *buff; /* buffer for tokens */ TString *source; /* current source name */ char decpoint; /* locale decimal point */ } LexState; LUAI_FUNC void luaX_init (lua_State *L); LUAI_FUNC void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source); LUAI_FUNC TString *luaX_newstring (LexState *ls, const char *str, size_t l); LUAI_FUNC void luaX_next (LexState *ls); LUAI_FUNC void luaX_lookahead (LexState *ls); LUAI_FUNC void luaX_lexerror (LexState *ls, const char *msg, int token); LUAI_FUNC void luaX_syntaxerror (LexState *ls, const char *s); LUAI_FUNC const char *luaX_token2str (LexState *ls, int token); #endif redis-2.6.16/deps/lua/src/llimits.h000066400000000000000000000044551220734223100170510ustar00rootroot00000000000000/* ** $Id: llimits.h,v 1.69.1.1 2007/12/27 13:02:25 roberto Exp $ ** Limits, basic types, and some other `installation-dependent' definitions ** See Copyright Notice in lua.h */ #ifndef llimits_h #define llimits_h #include #include #include "lua.h" typedef LUAI_UINT32 lu_int32; typedef LUAI_UMEM lu_mem; typedef LUAI_MEM l_mem; /* chars used as small naturals (so that `char' is reserved for characters) */ typedef unsigned char lu_byte; #define MAX_SIZET ((size_t)(~(size_t)0)-2) #define MAX_LUMEM ((lu_mem)(~(lu_mem)0)-2) #define MAX_INT (INT_MAX-2) /* maximum value of an int (-2 for safety) */ /* ** conversion of pointer to integer ** this is for hashing only; there is no problem if the integer ** cannot hold the whole pointer value */ #define IntPoint(p) ((unsigned int)(lu_mem)(p)) /* type to ensure maximum alignment */ typedef LUAI_USER_ALIGNMENT_T L_Umaxalign; /* result of a `usual argument conversion' over lua_Number */ typedef LUAI_UACNUMBER l_uacNumber; /* internal assertions for in-house debugging */ #ifdef lua_assert #define check_exp(c,e) (lua_assert(c), (e)) #define api_check(l,e) lua_assert(e) #else #define lua_assert(c) ((void)0) #define check_exp(c,e) (e) #define api_check luai_apicheck #endif #ifndef UNUSED #define UNUSED(x) ((void)(x)) /* to avoid warnings */ #endif #ifndef cast #define cast(t, exp) ((t)(exp)) #endif #define cast_byte(i) cast(lu_byte, (i)) #define cast_num(i) cast(lua_Number, (i)) #define cast_int(i) cast(int, (i)) /* ** type for virtual-machine instructions ** must be an unsigned with (at least) 4 bytes (see details in lopcodes.h) */ typedef lu_int32 Instruction; /* maximum stack for a Lua function */ #define MAXSTACK 250 /* minimum size for the string table (must be power of 2) */ #ifndef MINSTRTABSIZE #define MINSTRTABSIZE 32 #endif /* minimum size for string buffer */ #ifndef LUA_MINBUFFER #define LUA_MINBUFFER 32 #endif #ifndef lua_lock #define lua_lock(L) ((void) 0) #define lua_unlock(L) ((void) 0) #endif #ifndef luai_threadyield #define luai_threadyield(L) {lua_unlock(L); lua_lock(L);} #endif /* ** macro to control inclusion of some hard tests on stack reallocation */ #ifndef HARDSTACKTESTS #define condhardstacktests(x) ((void)0) #else #define condhardstacktests(x) x #endif #endif redis-2.6.16/deps/lua/src/lmathlib.c000066400000000000000000000133071220734223100171570ustar00rootroot00000000000000/* ** $Id: lmathlib.c,v 1.67.1.1 2007/12/27 13:02:25 roberto Exp $ ** Standard mathematical library ** See Copyright Notice in lua.h */ #include #include #define lmathlib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #include "lualib.h" #undef PI #define PI (3.14159265358979323846) #define RADIANS_PER_DEGREE (PI/180.0) static int math_abs (lua_State *L) { lua_pushnumber(L, fabs(luaL_checknumber(L, 1))); return 1; } static int math_sin (lua_State *L) { lua_pushnumber(L, sin(luaL_checknumber(L, 1))); return 1; } static int math_sinh (lua_State *L) { lua_pushnumber(L, sinh(luaL_checknumber(L, 1))); return 1; } static int math_cos (lua_State *L) { lua_pushnumber(L, cos(luaL_checknumber(L, 1))); return 1; } static int math_cosh (lua_State *L) { lua_pushnumber(L, cosh(luaL_checknumber(L, 1))); return 1; } static int math_tan (lua_State *L) { lua_pushnumber(L, tan(luaL_checknumber(L, 1))); return 1; } static int math_tanh (lua_State *L) { lua_pushnumber(L, tanh(luaL_checknumber(L, 1))); return 1; } static int math_asin (lua_State *L) { lua_pushnumber(L, asin(luaL_checknumber(L, 1))); return 1; } static int math_acos (lua_State *L) { lua_pushnumber(L, acos(luaL_checknumber(L, 1))); return 1; } static int math_atan (lua_State *L) { lua_pushnumber(L, atan(luaL_checknumber(L, 1))); return 1; } static int math_atan2 (lua_State *L) { lua_pushnumber(L, atan2(luaL_checknumber(L, 1), luaL_checknumber(L, 2))); return 1; } static int math_ceil (lua_State *L) { lua_pushnumber(L, ceil(luaL_checknumber(L, 1))); return 1; } static int math_floor (lua_State *L) { lua_pushnumber(L, floor(luaL_checknumber(L, 1))); return 1; } static int math_fmod (lua_State *L) { lua_pushnumber(L, fmod(luaL_checknumber(L, 1), luaL_checknumber(L, 2))); return 1; } static int math_modf (lua_State *L) { double ip; double fp = modf(luaL_checknumber(L, 1), &ip); lua_pushnumber(L, ip); lua_pushnumber(L, fp); return 2; } static int math_sqrt (lua_State *L) { lua_pushnumber(L, sqrt(luaL_checknumber(L, 1))); return 1; } static int math_pow (lua_State *L) { lua_pushnumber(L, pow(luaL_checknumber(L, 1), luaL_checknumber(L, 2))); return 1; } static int math_log (lua_State *L) { lua_pushnumber(L, log(luaL_checknumber(L, 1))); return 1; } static int math_log10 (lua_State *L) { lua_pushnumber(L, log10(luaL_checknumber(L, 1))); return 1; } static int math_exp (lua_State *L) { lua_pushnumber(L, exp(luaL_checknumber(L, 1))); return 1; } static int math_deg (lua_State *L) { lua_pushnumber(L, luaL_checknumber(L, 1)/RADIANS_PER_DEGREE); return 1; } static int math_rad (lua_State *L) { lua_pushnumber(L, luaL_checknumber(L, 1)*RADIANS_PER_DEGREE); return 1; } static int math_frexp (lua_State *L) { int e; lua_pushnumber(L, frexp(luaL_checknumber(L, 1), &e)); lua_pushinteger(L, e); return 2; } static int math_ldexp (lua_State *L) { lua_pushnumber(L, ldexp(luaL_checknumber(L, 1), luaL_checkint(L, 2))); return 1; } static int math_min (lua_State *L) { int n = lua_gettop(L); /* number of arguments */ lua_Number dmin = luaL_checknumber(L, 1); int i; for (i=2; i<=n; i++) { lua_Number d = luaL_checknumber(L, i); if (d < dmin) dmin = d; } lua_pushnumber(L, dmin); return 1; } static int math_max (lua_State *L) { int n = lua_gettop(L); /* number of arguments */ lua_Number dmax = luaL_checknumber(L, 1); int i; for (i=2; i<=n; i++) { lua_Number d = luaL_checknumber(L, i); if (d > dmax) dmax = d; } lua_pushnumber(L, dmax); return 1; } static int math_random (lua_State *L) { /* the `%' avoids the (rare) case of r==1, and is needed also because on some systems (SunOS!) `rand()' may return a value larger than RAND_MAX */ lua_Number r = (lua_Number)(rand()%RAND_MAX) / (lua_Number)RAND_MAX; switch (lua_gettop(L)) { /* check number of arguments */ case 0: { /* no arguments */ lua_pushnumber(L, r); /* Number between 0 and 1 */ break; } case 1: { /* only upper limit */ int u = luaL_checkint(L, 1); luaL_argcheck(L, 1<=u, 1, "interval is empty"); lua_pushnumber(L, floor(r*u)+1); /* int between 1 and `u' */ break; } case 2: { /* lower and upper limits */ int l = luaL_checkint(L, 1); int u = luaL_checkint(L, 2); luaL_argcheck(L, l<=u, 2, "interval is empty"); lua_pushnumber(L, floor(r*(u-l+1))+l); /* int between `l' and `u' */ break; } default: return luaL_error(L, "wrong number of arguments"); } return 1; } static int math_randomseed (lua_State *L) { srand(luaL_checkint(L, 1)); return 0; } static const luaL_Reg mathlib[] = { {"abs", math_abs}, {"acos", math_acos}, {"asin", math_asin}, {"atan2", math_atan2}, {"atan", math_atan}, {"ceil", math_ceil}, {"cosh", math_cosh}, {"cos", math_cos}, {"deg", math_deg}, {"exp", math_exp}, {"floor", math_floor}, {"fmod", math_fmod}, {"frexp", math_frexp}, {"ldexp", math_ldexp}, {"log10", math_log10}, {"log", math_log}, {"max", math_max}, {"min", math_min}, {"modf", math_modf}, {"pow", math_pow}, {"rad", math_rad}, {"random", math_random}, {"randomseed", math_randomseed}, {"sinh", math_sinh}, {"sin", math_sin}, {"sqrt", math_sqrt}, {"tanh", math_tanh}, {"tan", math_tan}, {NULL, NULL} }; /* ** Open math library */ LUALIB_API int luaopen_math (lua_State *L) { luaL_register(L, LUA_MATHLIBNAME, mathlib); lua_pushnumber(L, PI); lua_setfield(L, -2, "pi"); lua_pushnumber(L, HUGE_VAL); lua_setfield(L, -2, "huge"); #if defined(LUA_COMPAT_MOD) lua_getfield(L, -1, "fmod"); lua_setfield(L, -2, "mod"); #endif return 1; } redis-2.6.16/deps/lua/src/lmem.c000066400000000000000000000041741220734223100163170ustar00rootroot00000000000000/* ** $Id: lmem.c,v 1.70.1.1 2007/12/27 13:02:25 roberto Exp $ ** Interface to Memory Manager ** See Copyright Notice in lua.h */ #include #define lmem_c #define LUA_CORE #include "lua.h" #include "ldebug.h" #include "ldo.h" #include "lmem.h" #include "lobject.h" #include "lstate.h" /* ** About the realloc function: ** void * frealloc (void *ud, void *ptr, size_t osize, size_t nsize); ** (`osize' is the old size, `nsize' is the new size) ** ** Lua ensures that (ptr == NULL) iff (osize == 0). ** ** * frealloc(ud, NULL, 0, x) creates a new block of size `x' ** ** * frealloc(ud, p, x, 0) frees the block `p' ** (in this specific case, frealloc must return NULL). ** particularly, frealloc(ud, NULL, 0, 0) does nothing ** (which is equivalent to free(NULL) in ANSI C) ** ** frealloc returns NULL if it cannot create or reallocate the area ** (any reallocation to an equal or smaller size cannot fail!) */ #define MINSIZEARRAY 4 void *luaM_growaux_ (lua_State *L, void *block, int *size, size_t size_elems, int limit, const char *errormsg) { void *newblock; int newsize; if (*size >= limit/2) { /* cannot double it? */ if (*size >= limit) /* cannot grow even a little? */ luaG_runerror(L, errormsg); newsize = limit; /* still have at least one free place */ } else { newsize = (*size)*2; if (newsize < MINSIZEARRAY) newsize = MINSIZEARRAY; /* minimum size */ } newblock = luaM_reallocv(L, block, *size, newsize, size_elems); *size = newsize; /* update only when everything else is OK */ return newblock; } void *luaM_toobig (lua_State *L) { luaG_runerror(L, "memory allocation error: block too big"); return NULL; /* to avoid warnings */ } /* ** generic allocation routine. */ void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) { global_State *g = G(L); lua_assert((osize == 0) == (block == NULL)); block = (*g->frealloc)(g->ud, block, osize, nsize); if (block == NULL && nsize > 0) luaD_throw(L, LUA_ERRMEM); lua_assert((nsize == 0) == (block == NULL)); g->totalbytes = (g->totalbytes - osize) + nsize; return block; } redis-2.6.16/deps/lua/src/lmem.h000066400000000000000000000027261220734223100163250ustar00rootroot00000000000000/* ** $Id: lmem.h,v 1.31.1.1 2007/12/27 13:02:25 roberto Exp $ ** Interface to Memory Manager ** See Copyright Notice in lua.h */ #ifndef lmem_h #define lmem_h #include #include "llimits.h" #include "lua.h" #define MEMERRMSG "not enough memory" #define luaM_reallocv(L,b,on,n,e) \ ((cast(size_t, (n)+1) <= MAX_SIZET/(e)) ? /* +1 to avoid warnings */ \ luaM_realloc_(L, (b), (on)*(e), (n)*(e)) : \ luaM_toobig(L)) #define luaM_freemem(L, b, s) luaM_realloc_(L, (b), (s), 0) #define luaM_free(L, b) luaM_realloc_(L, (b), sizeof(*(b)), 0) #define luaM_freearray(L, b, n, t) luaM_reallocv(L, (b), n, 0, sizeof(t)) #define luaM_malloc(L,t) luaM_realloc_(L, NULL, 0, (t)) #define luaM_new(L,t) cast(t *, luaM_malloc(L, sizeof(t))) #define luaM_newvector(L,n,t) \ cast(t *, luaM_reallocv(L, NULL, 0, n, sizeof(t))) #define luaM_growvector(L,v,nelems,size,t,limit,e) \ if ((nelems)+1 > (size)) \ ((v)=cast(t *, luaM_growaux_(L,v,&(size),sizeof(t),limit,e))) #define luaM_reallocvector(L, v,oldn,n,t) \ ((v)=cast(t *, luaM_reallocv(L, v, oldn, n, sizeof(t)))) LUAI_FUNC void *luaM_realloc_ (lua_State *L, void *block, size_t oldsize, size_t size); LUAI_FUNC void *luaM_toobig (lua_State *L); LUAI_FUNC void *luaM_growaux_ (lua_State *L, void *block, int *size, size_t size_elem, int limit, const char *errormsg); #endif redis-2.6.16/deps/lua/src/loadlib.c000066400000000000000000000454201220734223100167720ustar00rootroot00000000000000/* ** $Id: loadlib.c,v 1.52.1.4 2009/09/09 13:17:16 roberto Exp $ ** Dynamic library loader for Lua ** See Copyright Notice in lua.h ** ** This module contains an implementation of loadlib for Unix systems ** that have dlfcn, an implementation for Darwin (Mac OS X), an ** implementation for Windows, and a stub for other systems. */ #include #include #define loadlib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #include "lualib.h" /* prefix for open functions in C libraries */ #define LUA_POF "luaopen_" /* separator for open functions in C libraries */ #define LUA_OFSEP "_" #define LIBPREFIX "LOADLIB: " #define POF LUA_POF #define LIB_FAIL "open" /* error codes for ll_loadfunc */ #define ERRLIB 1 #define ERRFUNC 2 #define setprogdir(L) ((void)0) static void ll_unloadlib (void *lib); static void *ll_load (lua_State *L, const char *path); static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym); #if defined(LUA_DL_DLOPEN) /* ** {======================================================================== ** This is an implementation of loadlib based on the dlfcn interface. ** The dlfcn interface is available in Linux, SunOS, Solaris, IRIX, FreeBSD, ** NetBSD, AIX 4.2, HPUX 11, and probably most other Unix flavors, at least ** as an emulation layer on top of native functions. ** ========================================================================= */ #include static void ll_unloadlib (void *lib) { dlclose(lib); } static void *ll_load (lua_State *L, const char *path) { void *lib = dlopen(path, RTLD_NOW); if (lib == NULL) lua_pushstring(L, dlerror()); return lib; } static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) { lua_CFunction f = (lua_CFunction)dlsym(lib, sym); if (f == NULL) lua_pushstring(L, dlerror()); return f; } /* }====================================================== */ #elif defined(LUA_DL_DLL) /* ** {====================================================================== ** This is an implementation of loadlib for Windows using native functions. ** ======================================================================= */ #include #undef setprogdir static void setprogdir (lua_State *L) { char buff[MAX_PATH + 1]; char *lb; DWORD nsize = sizeof(buff)/sizeof(char); DWORD n = GetModuleFileNameA(NULL, buff, nsize); if (n == 0 || n == nsize || (lb = strrchr(buff, '\\')) == NULL) luaL_error(L, "unable to get ModuleFileName"); else { *lb = '\0'; luaL_gsub(L, lua_tostring(L, -1), LUA_EXECDIR, buff); lua_remove(L, -2); /* remove original string */ } } static void pusherror (lua_State *L) { int error = GetLastError(); char buffer[128]; if (FormatMessageA(FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM, NULL, error, 0, buffer, sizeof(buffer), NULL)) lua_pushstring(L, buffer); else lua_pushfstring(L, "system error %d\n", error); } static void ll_unloadlib (void *lib) { FreeLibrary((HINSTANCE)lib); } static void *ll_load (lua_State *L, const char *path) { HINSTANCE lib = LoadLibraryA(path); if (lib == NULL) pusherror(L); return lib; } static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) { lua_CFunction f = (lua_CFunction)GetProcAddress((HINSTANCE)lib, sym); if (f == NULL) pusherror(L); return f; } /* }====================================================== */ #elif defined(LUA_DL_DYLD) /* ** {====================================================================== ** Native Mac OS X / Darwin Implementation ** ======================================================================= */ #include /* Mac appends a `_' before C function names */ #undef POF #define POF "_" LUA_POF static void pusherror (lua_State *L) { const char *err_str; const char *err_file; NSLinkEditErrors err; int err_num; NSLinkEditError(&err, &err_num, &err_file, &err_str); lua_pushstring(L, err_str); } static const char *errorfromcode (NSObjectFileImageReturnCode ret) { switch (ret) { case NSObjectFileImageInappropriateFile: return "file is not a bundle"; case NSObjectFileImageArch: return "library is for wrong CPU type"; case NSObjectFileImageFormat: return "bad format"; case NSObjectFileImageAccess: return "cannot access file"; case NSObjectFileImageFailure: default: return "unable to load library"; } } static void ll_unloadlib (void *lib) { NSUnLinkModule((NSModule)lib, NSUNLINKMODULE_OPTION_RESET_LAZY_REFERENCES); } static void *ll_load (lua_State *L, const char *path) { NSObjectFileImage img; NSObjectFileImageReturnCode ret; /* this would be a rare case, but prevents crashing if it happens */ if(!_dyld_present()) { lua_pushliteral(L, "dyld not present"); return NULL; } ret = NSCreateObjectFileImageFromFile(path, &img); if (ret == NSObjectFileImageSuccess) { NSModule mod = NSLinkModule(img, path, NSLINKMODULE_OPTION_PRIVATE | NSLINKMODULE_OPTION_RETURN_ON_ERROR); NSDestroyObjectFileImage(img); if (mod == NULL) pusherror(L); return mod; } lua_pushstring(L, errorfromcode(ret)); return NULL; } static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) { NSSymbol nss = NSLookupSymbolInModule((NSModule)lib, sym); if (nss == NULL) { lua_pushfstring(L, "symbol " LUA_QS " not found", sym); return NULL; } return (lua_CFunction)NSAddressOfSymbol(nss); } /* }====================================================== */ #else /* ** {====================================================== ** Fallback for other systems ** ======================================================= */ #undef LIB_FAIL #define LIB_FAIL "absent" #define DLMSG "dynamic libraries not enabled; check your Lua installation" static void ll_unloadlib (void *lib) { (void)lib; /* to avoid warnings */ } static void *ll_load (lua_State *L, const char *path) { (void)path; /* to avoid warnings */ lua_pushliteral(L, DLMSG); return NULL; } static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) { (void)lib; (void)sym; /* to avoid warnings */ lua_pushliteral(L, DLMSG); return NULL; } /* }====================================================== */ #endif static void **ll_register (lua_State *L, const char *path) { void **plib; lua_pushfstring(L, "%s%s", LIBPREFIX, path); lua_gettable(L, LUA_REGISTRYINDEX); /* check library in registry? */ if (!lua_isnil(L, -1)) /* is there an entry? */ plib = (void **)lua_touserdata(L, -1); else { /* no entry yet; create one */ lua_pop(L, 1); plib = (void **)lua_newuserdata(L, sizeof(const void *)); *plib = NULL; luaL_getmetatable(L, "_LOADLIB"); lua_setmetatable(L, -2); lua_pushfstring(L, "%s%s", LIBPREFIX, path); lua_pushvalue(L, -2); lua_settable(L, LUA_REGISTRYINDEX); } return plib; } /* ** __gc tag method: calls library's `ll_unloadlib' function with the lib ** handle */ static int gctm (lua_State *L) { void **lib = (void **)luaL_checkudata(L, 1, "_LOADLIB"); if (*lib) ll_unloadlib(*lib); *lib = NULL; /* mark library as closed */ return 0; } static int ll_loadfunc (lua_State *L, const char *path, const char *sym) { void **reg = ll_register(L, path); if (*reg == NULL) *reg = ll_load(L, path); if (*reg == NULL) return ERRLIB; /* unable to load library */ else { lua_CFunction f = ll_sym(L, *reg, sym); if (f == NULL) return ERRFUNC; /* unable to find function */ lua_pushcfunction(L, f); return 0; /* return function */ } } static int ll_loadlib (lua_State *L) { const char *path = luaL_checkstring(L, 1); const char *init = luaL_checkstring(L, 2); int stat = ll_loadfunc(L, path, init); if (stat == 0) /* no errors? */ return 1; /* return the loaded function */ else { /* error; error message is on stack top */ lua_pushnil(L); lua_insert(L, -2); lua_pushstring(L, (stat == ERRLIB) ? LIB_FAIL : "init"); return 3; /* return nil, error message, and where */ } } /* ** {====================================================== ** 'require' function ** ======================================================= */ static int readable (const char *filename) { FILE *f = fopen(filename, "r"); /* try to open file */ if (f == NULL) return 0; /* open failed */ fclose(f); return 1; } static const char *pushnexttemplate (lua_State *L, const char *path) { const char *l; while (*path == *LUA_PATHSEP) path++; /* skip separators */ if (*path == '\0') return NULL; /* no more templates */ l = strchr(path, *LUA_PATHSEP); /* find next separator */ if (l == NULL) l = path + strlen(path); lua_pushlstring(L, path, l - path); /* template */ return l; } static const char *findfile (lua_State *L, const char *name, const char *pname) { const char *path; name = luaL_gsub(L, name, ".", LUA_DIRSEP); lua_getfield(L, LUA_ENVIRONINDEX, pname); path = lua_tostring(L, -1); if (path == NULL) luaL_error(L, LUA_QL("package.%s") " must be a string", pname); lua_pushliteral(L, ""); /* error accumulator */ while ((path = pushnexttemplate(L, path)) != NULL) { const char *filename; filename = luaL_gsub(L, lua_tostring(L, -1), LUA_PATH_MARK, name); lua_remove(L, -2); /* remove path template */ if (readable(filename)) /* does file exist and is readable? */ return filename; /* return that file name */ lua_pushfstring(L, "\n\tno file " LUA_QS, filename); lua_remove(L, -2); /* remove file name */ lua_concat(L, 2); /* add entry to possible error message */ } return NULL; /* not found */ } static void loaderror (lua_State *L, const char *filename) { luaL_error(L, "error loading module " LUA_QS " from file " LUA_QS ":\n\t%s", lua_tostring(L, 1), filename, lua_tostring(L, -1)); } static int loader_Lua (lua_State *L) { const char *filename; const char *name = luaL_checkstring(L, 1); filename = findfile(L, name, "path"); if (filename == NULL) return 1; /* library not found in this path */ if (luaL_loadfile(L, filename) != 0) loaderror(L, filename); return 1; /* library loaded successfully */ } static const char *mkfuncname (lua_State *L, const char *modname) { const char *funcname; const char *mark = strchr(modname, *LUA_IGMARK); if (mark) modname = mark + 1; funcname = luaL_gsub(L, modname, ".", LUA_OFSEP); funcname = lua_pushfstring(L, POF"%s", funcname); lua_remove(L, -2); /* remove 'gsub' result */ return funcname; } static int loader_C (lua_State *L) { const char *funcname; const char *name = luaL_checkstring(L, 1); const char *filename = findfile(L, name, "cpath"); if (filename == NULL) return 1; /* library not found in this path */ funcname = mkfuncname(L, name); if (ll_loadfunc(L, filename, funcname) != 0) loaderror(L, filename); return 1; /* library loaded successfully */ } static int loader_Croot (lua_State *L) { const char *funcname; const char *filename; const char *name = luaL_checkstring(L, 1); const char *p = strchr(name, '.'); int stat; if (p == NULL) return 0; /* is root */ lua_pushlstring(L, name, p - name); filename = findfile(L, lua_tostring(L, -1), "cpath"); if (filename == NULL) return 1; /* root not found */ funcname = mkfuncname(L, name); if ((stat = ll_loadfunc(L, filename, funcname)) != 0) { if (stat != ERRFUNC) loaderror(L, filename); /* real error */ lua_pushfstring(L, "\n\tno module " LUA_QS " in file " LUA_QS, name, filename); return 1; /* function not found */ } return 1; } static int loader_preload (lua_State *L) { const char *name = luaL_checkstring(L, 1); lua_getfield(L, LUA_ENVIRONINDEX, "preload"); if (!lua_istable(L, -1)) luaL_error(L, LUA_QL("package.preload") " must be a table"); lua_getfield(L, -1, name); if (lua_isnil(L, -1)) /* not found? */ lua_pushfstring(L, "\n\tno field package.preload['%s']", name); return 1; } static const int sentinel_ = 0; #define sentinel ((void *)&sentinel_) static int ll_require (lua_State *L) { const char *name = luaL_checkstring(L, 1); int i; lua_settop(L, 1); /* _LOADED table will be at index 2 */ lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED"); lua_getfield(L, 2, name); if (lua_toboolean(L, -1)) { /* is it there? */ if (lua_touserdata(L, -1) == sentinel) /* check loops */ luaL_error(L, "loop or previous error loading module " LUA_QS, name); return 1; /* package is already loaded */ } /* else must load it; iterate over available loaders */ lua_getfield(L, LUA_ENVIRONINDEX, "loaders"); if (!lua_istable(L, -1)) luaL_error(L, LUA_QL("package.loaders") " must be a table"); lua_pushliteral(L, ""); /* error message accumulator */ for (i=1; ; i++) { lua_rawgeti(L, -2, i); /* get a loader */ if (lua_isnil(L, -1)) luaL_error(L, "module " LUA_QS " not found:%s", name, lua_tostring(L, -2)); lua_pushstring(L, name); lua_call(L, 1, 1); /* call it */ if (lua_isfunction(L, -1)) /* did it find module? */ break; /* module loaded successfully */ else if (lua_isstring(L, -1)) /* loader returned error message? */ lua_concat(L, 2); /* accumulate it */ else lua_pop(L, 1); } lua_pushlightuserdata(L, sentinel); lua_setfield(L, 2, name); /* _LOADED[name] = sentinel */ lua_pushstring(L, name); /* pass name as argument to module */ lua_call(L, 1, 1); /* run loaded module */ if (!lua_isnil(L, -1)) /* non-nil return? */ lua_setfield(L, 2, name); /* _LOADED[name] = returned value */ lua_getfield(L, 2, name); if (lua_touserdata(L, -1) == sentinel) { /* module did not set a value? */ lua_pushboolean(L, 1); /* use true as result */ lua_pushvalue(L, -1); /* extra copy to be returned */ lua_setfield(L, 2, name); /* _LOADED[name] = true */ } return 1; } /* }====================================================== */ /* ** {====================================================== ** 'module' function ** ======================================================= */ static void setfenv (lua_State *L) { lua_Debug ar; if (lua_getstack(L, 1, &ar) == 0 || lua_getinfo(L, "f", &ar) == 0 || /* get calling function */ lua_iscfunction(L, -1)) luaL_error(L, LUA_QL("module") " not called from a Lua function"); lua_pushvalue(L, -2); lua_setfenv(L, -2); lua_pop(L, 1); } static void dooptions (lua_State *L, int n) { int i; for (i = 2; i <= n; i++) { lua_pushvalue(L, i); /* get option (a function) */ lua_pushvalue(L, -2); /* module */ lua_call(L, 1, 0); } } static void modinit (lua_State *L, const char *modname) { const char *dot; lua_pushvalue(L, -1); lua_setfield(L, -2, "_M"); /* module._M = module */ lua_pushstring(L, modname); lua_setfield(L, -2, "_NAME"); dot = strrchr(modname, '.'); /* look for last dot in module name */ if (dot == NULL) dot = modname; else dot++; /* set _PACKAGE as package name (full module name minus last part) */ lua_pushlstring(L, modname, dot - modname); lua_setfield(L, -2, "_PACKAGE"); } static int ll_module (lua_State *L) { const char *modname = luaL_checkstring(L, 1); int loaded = lua_gettop(L) + 1; /* index of _LOADED table */ lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED"); lua_getfield(L, loaded, modname); /* get _LOADED[modname] */ if (!lua_istable(L, -1)) { /* not found? */ lua_pop(L, 1); /* remove previous result */ /* try global variable (and create one if it does not exist) */ if (luaL_findtable(L, LUA_GLOBALSINDEX, modname, 1) != NULL) return luaL_error(L, "name conflict for module " LUA_QS, modname); lua_pushvalue(L, -1); lua_setfield(L, loaded, modname); /* _LOADED[modname] = new table */ } /* check whether table already has a _NAME field */ lua_getfield(L, -1, "_NAME"); if (!lua_isnil(L, -1)) /* is table an initialized module? */ lua_pop(L, 1); else { /* no; initialize it */ lua_pop(L, 1); modinit(L, modname); } lua_pushvalue(L, -1); setfenv(L); dooptions(L, loaded - 1); return 0; } static int ll_seeall (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); if (!lua_getmetatable(L, 1)) { lua_createtable(L, 0, 1); /* create new metatable */ lua_pushvalue(L, -1); lua_setmetatable(L, 1); } lua_pushvalue(L, LUA_GLOBALSINDEX); lua_setfield(L, -2, "__index"); /* mt.__index = _G */ return 0; } /* }====================================================== */ /* auxiliary mark (for internal use) */ #define AUXMARK "\1" static void setpath (lua_State *L, const char *fieldname, const char *envname, const char *def) { const char *path = getenv(envname); if (path == NULL) /* no environment variable? */ lua_pushstring(L, def); /* use default */ else { /* replace ";;" by ";AUXMARK;" and then AUXMARK by default path */ path = luaL_gsub(L, path, LUA_PATHSEP LUA_PATHSEP, LUA_PATHSEP AUXMARK LUA_PATHSEP); luaL_gsub(L, path, AUXMARK, def); lua_remove(L, -2); } setprogdir(L); lua_setfield(L, -2, fieldname); } static const luaL_Reg pk_funcs[] = { {"loadlib", ll_loadlib}, {"seeall", ll_seeall}, {NULL, NULL} }; static const luaL_Reg ll_funcs[] = { {"module", ll_module}, {"require", ll_require}, {NULL, NULL} }; static const lua_CFunction loaders[] = {loader_preload, loader_Lua, loader_C, loader_Croot, NULL}; LUALIB_API int luaopen_package (lua_State *L) { int i; /* create new type _LOADLIB */ luaL_newmetatable(L, "_LOADLIB"); lua_pushcfunction(L, gctm); lua_setfield(L, -2, "__gc"); /* create `package' table */ luaL_register(L, LUA_LOADLIBNAME, pk_funcs); #if defined(LUA_COMPAT_LOADLIB) lua_getfield(L, -1, "loadlib"); lua_setfield(L, LUA_GLOBALSINDEX, "loadlib"); #endif lua_pushvalue(L, -1); lua_replace(L, LUA_ENVIRONINDEX); /* create `loaders' table */ lua_createtable(L, sizeof(loaders)/sizeof(loaders[0]) - 1, 0); /* fill it with pre-defined loaders */ for (i=0; loaders[i] != NULL; i++) { lua_pushcfunction(L, loaders[i]); lua_rawseti(L, -2, i+1); } lua_setfield(L, -2, "loaders"); /* put it in field `loaders' */ setpath(L, "path", LUA_PATH, LUA_PATH_DEFAULT); /* set field `path' */ setpath(L, "cpath", LUA_CPATH, LUA_CPATH_DEFAULT); /* set field `cpath' */ /* store config information */ lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATHSEP "\n" LUA_PATH_MARK "\n" LUA_EXECDIR "\n" LUA_IGMARK); lua_setfield(L, -2, "config"); /* set field `loaded' */ luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 2); lua_setfield(L, -2, "loaded"); /* set field `preload' */ lua_newtable(L); lua_setfield(L, -2, "preload"); lua_pushvalue(L, LUA_GLOBALSINDEX); luaL_register(L, NULL, ll_funcs); /* open lib into global table */ lua_pop(L, 1); return 1; /* return 'package' table */ } redis-2.6.16/deps/lua/src/lobject.c000066400000000000000000000125721220734223100170100ustar00rootroot00000000000000/* ** $Id: lobject.c,v 2.22.1.1 2007/12/27 13:02:25 roberto Exp $ ** Some generic functions over Lua objects ** See Copyright Notice in lua.h */ #include #include #include #include #include #define lobject_c #define LUA_CORE #include "lua.h" #include "ldo.h" #include "lmem.h" #include "lobject.h" #include "lstate.h" #include "lstring.h" #include "lvm.h" const TValue luaO_nilobject_ = {{NULL}, LUA_TNIL}; /* ** converts an integer to a "floating point byte", represented as ** (eeeeexxx), where the real value is (1xxx) * 2^(eeeee - 1) if ** eeeee != 0 and (xxx) otherwise. */ int luaO_int2fb (unsigned int x) { int e = 0; /* expoent */ while (x >= 16) { x = (x+1) >> 1; e++; } if (x < 8) return x; else return ((e+1) << 3) | (cast_int(x) - 8); } /* converts back */ int luaO_fb2int (int x) { int e = (x >> 3) & 31; if (e == 0) return x; else return ((x & 7)+8) << (e - 1); } int luaO_log2 (unsigned int x) { static const lu_byte log_2[256] = { 0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5, 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8 }; int l = -1; while (x >= 256) { l += 8; x >>= 8; } return l + log_2[x]; } int luaO_rawequalObj (const TValue *t1, const TValue *t2) { if (ttype(t1) != ttype(t2)) return 0; else switch (ttype(t1)) { case LUA_TNIL: return 1; case LUA_TNUMBER: return luai_numeq(nvalue(t1), nvalue(t2)); case LUA_TBOOLEAN: return bvalue(t1) == bvalue(t2); /* boolean true must be 1 !! */ case LUA_TLIGHTUSERDATA: return pvalue(t1) == pvalue(t2); default: lua_assert(iscollectable(t1)); return gcvalue(t1) == gcvalue(t2); } } int luaO_str2d (const char *s, lua_Number *result) { char *endptr; *result = lua_str2number(s, &endptr); if (endptr == s) return 0; /* conversion failed */ if (*endptr == 'x' || *endptr == 'X') /* maybe an hexadecimal constant? */ *result = cast_num(strtoul(s, &endptr, 16)); if (*endptr == '\0') return 1; /* most common case */ while (isspace(cast(unsigned char, *endptr))) endptr++; if (*endptr != '\0') return 0; /* invalid trailing characters? */ return 1; } static void pushstr (lua_State *L, const char *str) { setsvalue2s(L, L->top, luaS_new(L, str)); incr_top(L); } /* this function handles only `%d', `%c', %f, %p, and `%s' formats */ const char *luaO_pushvfstring (lua_State *L, const char *fmt, va_list argp) { int n = 1; pushstr(L, ""); for (;;) { const char *e = strchr(fmt, '%'); if (e == NULL) break; setsvalue2s(L, L->top, luaS_newlstr(L, fmt, e-fmt)); incr_top(L); switch (*(e+1)) { case 's': { const char *s = va_arg(argp, char *); if (s == NULL) s = "(null)"; pushstr(L, s); break; } case 'c': { char buff[2]; buff[0] = cast(char, va_arg(argp, int)); buff[1] = '\0'; pushstr(L, buff); break; } case 'd': { setnvalue(L->top, cast_num(va_arg(argp, int))); incr_top(L); break; } case 'f': { setnvalue(L->top, cast_num(va_arg(argp, l_uacNumber))); incr_top(L); break; } case 'p': { char buff[4*sizeof(void *) + 8]; /* should be enough space for a `%p' */ sprintf(buff, "%p", va_arg(argp, void *)); pushstr(L, buff); break; } case '%': { pushstr(L, "%"); break; } default: { char buff[3]; buff[0] = '%'; buff[1] = *(e+1); buff[2] = '\0'; pushstr(L, buff); break; } } n += 2; fmt = e+2; } pushstr(L, fmt); luaV_concat(L, n+1, cast_int(L->top - L->base) - 1); L->top -= n; return svalue(L->top - 1); } const char *luaO_pushfstring (lua_State *L, const char *fmt, ...) { const char *msg; va_list argp; va_start(argp, fmt); msg = luaO_pushvfstring(L, fmt, argp); va_end(argp); return msg; } void luaO_chunkid (char *out, const char *source, size_t bufflen) { if (*source == '=') { strncpy(out, source+1, bufflen); /* remove first char */ out[bufflen-1] = '\0'; /* ensures null termination */ } else { /* out = "source", or "...source" */ if (*source == '@') { size_t l; source++; /* skip the `@' */ bufflen -= sizeof(" '...' "); l = strlen(source); strcpy(out, ""); if (l > bufflen) { source += (l-bufflen); /* get last part of file name */ strcat(out, "..."); } strcat(out, source); } else { /* out = [string "string"] */ size_t len = strcspn(source, "\n\r"); /* stop at first newline */ bufflen -= sizeof(" [string \"...\"] "); if (len > bufflen) len = bufflen; strcpy(out, "[string \""); if (source[len] != '\0') { /* must truncate? */ strncat(out, source, len); strcat(out, "..."); } else strcat(out, source); strcat(out, "\"]"); } } } redis-2.6.16/deps/lua/src/lobject.h000066400000000000000000000204661220734223100170160ustar00rootroot00000000000000/* ** $Id: lobject.h,v 2.20.1.2 2008/08/06 13:29:48 roberto Exp $ ** Type definitions for Lua objects ** See Copyright Notice in lua.h */ #ifndef lobject_h #define lobject_h #include #include "llimits.h" #include "lua.h" /* tags for values visible from Lua */ #define LAST_TAG LUA_TTHREAD #define NUM_TAGS (LAST_TAG+1) /* ** Extra tags for non-values */ #define LUA_TPROTO (LAST_TAG+1) #define LUA_TUPVAL (LAST_TAG+2) #define LUA_TDEADKEY (LAST_TAG+3) /* ** Union of all collectable objects */ typedef union GCObject GCObject; /* ** Common Header for all collectable objects (in macro form, to be ** included in other objects) */ #define CommonHeader GCObject *next; lu_byte tt; lu_byte marked /* ** Common header in struct form */ typedef struct GCheader { CommonHeader; } GCheader; /* ** Union of all Lua values */ typedef union { GCObject *gc; void *p; lua_Number n; int b; } Value; /* ** Tagged Values */ #define TValuefields Value value; int tt typedef struct lua_TValue { TValuefields; } TValue; /* Macros to test type */ #define ttisnil(o) (ttype(o) == LUA_TNIL) #define ttisnumber(o) (ttype(o) == LUA_TNUMBER) #define ttisstring(o) (ttype(o) == LUA_TSTRING) #define ttistable(o) (ttype(o) == LUA_TTABLE) #define ttisfunction(o) (ttype(o) == LUA_TFUNCTION) #define ttisboolean(o) (ttype(o) == LUA_TBOOLEAN) #define ttisuserdata(o) (ttype(o) == LUA_TUSERDATA) #define ttisthread(o) (ttype(o) == LUA_TTHREAD) #define ttislightuserdata(o) (ttype(o) == LUA_TLIGHTUSERDATA) /* Macros to access values */ #define ttype(o) ((o)->tt) #define gcvalue(o) check_exp(iscollectable(o), (o)->value.gc) #define pvalue(o) check_exp(ttislightuserdata(o), (o)->value.p) #define nvalue(o) check_exp(ttisnumber(o), (o)->value.n) #define rawtsvalue(o) check_exp(ttisstring(o), &(o)->value.gc->ts) #define tsvalue(o) (&rawtsvalue(o)->tsv) #define rawuvalue(o) check_exp(ttisuserdata(o), &(o)->value.gc->u) #define uvalue(o) (&rawuvalue(o)->uv) #define clvalue(o) check_exp(ttisfunction(o), &(o)->value.gc->cl) #define hvalue(o) check_exp(ttistable(o), &(o)->value.gc->h) #define bvalue(o) check_exp(ttisboolean(o), (o)->value.b) #define thvalue(o) check_exp(ttisthread(o), &(o)->value.gc->th) #define l_isfalse(o) (ttisnil(o) || (ttisboolean(o) && bvalue(o) == 0)) /* ** for internal debug only */ #define checkconsistency(obj) \ lua_assert(!iscollectable(obj) || (ttype(obj) == (obj)->value.gc->gch.tt)) #define checkliveness(g,obj) \ lua_assert(!iscollectable(obj) || \ ((ttype(obj) == (obj)->value.gc->gch.tt) && !isdead(g, (obj)->value.gc))) /* Macros to set values */ #define setnilvalue(obj) ((obj)->tt=LUA_TNIL) #define setnvalue(obj,x) \ { TValue *i_o=(obj); i_o->value.n=(x); i_o->tt=LUA_TNUMBER; } #define setpvalue(obj,x) \ { TValue *i_o=(obj); i_o->value.p=(x); i_o->tt=LUA_TLIGHTUSERDATA; } #define setbvalue(obj,x) \ { TValue *i_o=(obj); i_o->value.b=(x); i_o->tt=LUA_TBOOLEAN; } #define setsvalue(L,obj,x) \ { TValue *i_o=(obj); \ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TSTRING; \ checkliveness(G(L),i_o); } #define setuvalue(L,obj,x) \ { TValue *i_o=(obj); \ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TUSERDATA; \ checkliveness(G(L),i_o); } #define setthvalue(L,obj,x) \ { TValue *i_o=(obj); \ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TTHREAD; \ checkliveness(G(L),i_o); } #define setclvalue(L,obj,x) \ { TValue *i_o=(obj); \ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TFUNCTION; \ checkliveness(G(L),i_o); } #define sethvalue(L,obj,x) \ { TValue *i_o=(obj); \ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TTABLE; \ checkliveness(G(L),i_o); } #define setptvalue(L,obj,x) \ { TValue *i_o=(obj); \ i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TPROTO; \ checkliveness(G(L),i_o); } #define setobj(L,obj1,obj2) \ { const TValue *o2=(obj2); TValue *o1=(obj1); \ o1->value = o2->value; o1->tt=o2->tt; \ checkliveness(G(L),o1); } /* ** different types of sets, according to destination */ /* from stack to (same) stack */ #define setobjs2s setobj /* to stack (not from same stack) */ #define setobj2s setobj #define setsvalue2s setsvalue #define sethvalue2s sethvalue #define setptvalue2s setptvalue /* from table to same table */ #define setobjt2t setobj /* to table */ #define setobj2t setobj /* to new object */ #define setobj2n setobj #define setsvalue2n setsvalue #define setttype(obj, tt) (ttype(obj) = (tt)) #define iscollectable(o) (ttype(o) >= LUA_TSTRING) typedef TValue *StkId; /* index to stack elements */ /* ** String headers for string table */ typedef union TString { L_Umaxalign dummy; /* ensures maximum alignment for strings */ struct { CommonHeader; lu_byte reserved; unsigned int hash; size_t len; } tsv; } TString; #define getstr(ts) cast(const char *, (ts) + 1) #define svalue(o) getstr(rawtsvalue(o)) typedef union Udata { L_Umaxalign dummy; /* ensures maximum alignment for `local' udata */ struct { CommonHeader; struct Table *metatable; struct Table *env; size_t len; } uv; } Udata; /* ** Function Prototypes */ typedef struct Proto { CommonHeader; TValue *k; /* constants used by the function */ Instruction *code; struct Proto **p; /* functions defined inside the function */ int *lineinfo; /* map from opcodes to source lines */ struct LocVar *locvars; /* information about local variables */ TString **upvalues; /* upvalue names */ TString *source; int sizeupvalues; int sizek; /* size of `k' */ int sizecode; int sizelineinfo; int sizep; /* size of `p' */ int sizelocvars; int linedefined; int lastlinedefined; GCObject *gclist; lu_byte nups; /* number of upvalues */ lu_byte numparams; lu_byte is_vararg; lu_byte maxstacksize; } Proto; /* masks for new-style vararg */ #define VARARG_HASARG 1 #define VARARG_ISVARARG 2 #define VARARG_NEEDSARG 4 typedef struct LocVar { TString *varname; int startpc; /* first point where variable is active */ int endpc; /* first point where variable is dead */ } LocVar; /* ** Upvalues */ typedef struct UpVal { CommonHeader; TValue *v; /* points to stack or to its own value */ union { TValue value; /* the value (when closed) */ struct { /* double linked list (when open) */ struct UpVal *prev; struct UpVal *next; } l; } u; } UpVal; /* ** Closures */ #define ClosureHeader \ CommonHeader; lu_byte isC; lu_byte nupvalues; GCObject *gclist; \ struct Table *env typedef struct CClosure { ClosureHeader; lua_CFunction f; TValue upvalue[1]; } CClosure; typedef struct LClosure { ClosureHeader; struct Proto *p; UpVal *upvals[1]; } LClosure; typedef union Closure { CClosure c; LClosure l; } Closure; #define iscfunction(o) (ttype(o) == LUA_TFUNCTION && clvalue(o)->c.isC) #define isLfunction(o) (ttype(o) == LUA_TFUNCTION && !clvalue(o)->c.isC) /* ** Tables */ typedef union TKey { struct { TValuefields; struct Node *next; /* for chaining */ } nk; TValue tvk; } TKey; typedef struct Node { TValue i_val; TKey i_key; } Node; typedef struct Table { CommonHeader; lu_byte flags; /* 1<

lsizenode)) #define luaO_nilobject (&luaO_nilobject_) LUAI_DATA const TValue luaO_nilobject_; #define ceillog2(x) (luaO_log2((x)-1) + 1) LUAI_FUNC int luaO_log2 (unsigned int x); LUAI_FUNC int luaO_int2fb (unsigned int x); LUAI_FUNC int luaO_fb2int (int x); LUAI_FUNC int luaO_rawequalObj (const TValue *t1, const TValue *t2); LUAI_FUNC int luaO_str2d (const char *s, lua_Number *result); LUAI_FUNC const char *luaO_pushvfstring (lua_State *L, const char *fmt, va_list argp); LUAI_FUNC const char *luaO_pushfstring (lua_State *L, const char *fmt, ...); LUAI_FUNC void luaO_chunkid (char *out, const char *source, size_t len); #endif redis-2.6.16/deps/lua/src/lopcodes.c000066400000000000000000000055041220734223100171730ustar00rootroot00000000000000/* ** $Id: lopcodes.c,v 1.37.1.1 2007/12/27 13:02:25 roberto Exp $ ** See Copyright Notice in lua.h */ #define lopcodes_c #define LUA_CORE #include "lopcodes.h" /* ORDER OP */ const char *const luaP_opnames[NUM_OPCODES+1] = { "MOVE", "LOADK", "LOADBOOL", "LOADNIL", "GETUPVAL", "GETGLOBAL", "GETTABLE", "SETGLOBAL", "SETUPVAL", "SETTABLE", "NEWTABLE", "SELF", "ADD", "SUB", "MUL", "DIV", "MOD", "POW", "UNM", "NOT", "LEN", "CONCAT", "JMP", "EQ", "LT", "LE", "TEST", "TESTSET", "CALL", "TAILCALL", "RETURN", "FORLOOP", "FORPREP", "TFORLOOP", "SETLIST", "CLOSE", "CLOSURE", "VARARG", NULL }; #define opmode(t,a,b,c,m) (((t)<<7) | ((a)<<6) | ((b)<<4) | ((c)<<2) | (m)) const lu_byte luaP_opmodes[NUM_OPCODES] = { /* T A B C mode opcode */ opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_MOVE */ ,opmode(0, 1, OpArgK, OpArgN, iABx) /* OP_LOADK */ ,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_LOADBOOL */ ,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_LOADNIL */ ,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_GETUPVAL */ ,opmode(0, 1, OpArgK, OpArgN, iABx) /* OP_GETGLOBAL */ ,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_GETTABLE */ ,opmode(0, 0, OpArgK, OpArgN, iABx) /* OP_SETGLOBAL */ ,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_SETUPVAL */ ,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_SETTABLE */ ,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_NEWTABLE */ ,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_SELF */ ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_ADD */ ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_SUB */ ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_MUL */ ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_DIV */ ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_MOD */ ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_POW */ ,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_UNM */ ,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_NOT */ ,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_LEN */ ,opmode(0, 1, OpArgR, OpArgR, iABC) /* OP_CONCAT */ ,opmode(0, 0, OpArgR, OpArgN, iAsBx) /* OP_JMP */ ,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_EQ */ ,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LT */ ,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LE */ ,opmode(1, 1, OpArgR, OpArgU, iABC) /* OP_TEST */ ,opmode(1, 1, OpArgR, OpArgU, iABC) /* OP_TESTSET */ ,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_CALL */ ,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_TAILCALL */ ,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_RETURN */ ,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_FORLOOP */ ,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_FORPREP */ ,opmode(1, 0, OpArgN, OpArgU, iABC) /* OP_TFORLOOP */ ,opmode(0, 0, OpArgU, OpArgU, iABC) /* OP_SETLIST */ ,opmode(0, 0, OpArgN, OpArgN, iABC) /* OP_CLOSE */ ,opmode(0, 1, OpArgU, OpArgN, iABx) /* OP_CLOSURE */ ,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_VARARG */ }; redis-2.6.16/deps/lua/src/lopcodes.h000066400000000000000000000176261220734223100172100ustar00rootroot00000000000000/* ** $Id: lopcodes.h,v 1.125.1.1 2007/12/27 13:02:25 roberto Exp $ ** Opcodes for Lua virtual machine ** See Copyright Notice in lua.h */ #ifndef lopcodes_h #define lopcodes_h #include "llimits.h" /*=========================================================================== We assume that instructions are unsigned numbers. All instructions have an opcode in the first 6 bits. Instructions can have the following fields: `A' : 8 bits `B' : 9 bits `C' : 9 bits `Bx' : 18 bits (`B' and `C' together) `sBx' : signed Bx A signed argument is represented in excess K; that is, the number value is the unsigned value minus K. K is exactly the maximum value for that argument (so that -max is represented by 0, and +max is represented by 2*max), which is half the maximum for the corresponding unsigned argument. ===========================================================================*/ enum OpMode {iABC, iABx, iAsBx}; /* basic instruction format */ /* ** size and position of opcode arguments. */ #define SIZE_C 9 #define SIZE_B 9 #define SIZE_Bx (SIZE_C + SIZE_B) #define SIZE_A 8 #define SIZE_OP 6 #define POS_OP 0 #define POS_A (POS_OP + SIZE_OP) #define POS_C (POS_A + SIZE_A) #define POS_B (POS_C + SIZE_C) #define POS_Bx POS_C /* ** limits for opcode arguments. ** we use (signed) int to manipulate most arguments, ** so they must fit in LUAI_BITSINT-1 bits (-1 for sign) */ #if SIZE_Bx < LUAI_BITSINT-1 #define MAXARG_Bx ((1<>1) /* `sBx' is signed */ #else #define MAXARG_Bx MAX_INT #define MAXARG_sBx MAX_INT #endif #define MAXARG_A ((1<>POS_OP) & MASK1(SIZE_OP,0))) #define SET_OPCODE(i,o) ((i) = (((i)&MASK0(SIZE_OP,POS_OP)) | \ ((cast(Instruction, o)<>POS_A) & MASK1(SIZE_A,0))) #define SETARG_A(i,u) ((i) = (((i)&MASK0(SIZE_A,POS_A)) | \ ((cast(Instruction, u)<>POS_B) & MASK1(SIZE_B,0))) #define SETARG_B(i,b) ((i) = (((i)&MASK0(SIZE_B,POS_B)) | \ ((cast(Instruction, b)<>POS_C) & MASK1(SIZE_C,0))) #define SETARG_C(i,b) ((i) = (((i)&MASK0(SIZE_C,POS_C)) | \ ((cast(Instruction, b)<>POS_Bx) & MASK1(SIZE_Bx,0))) #define SETARG_Bx(i,b) ((i) = (((i)&MASK0(SIZE_Bx,POS_Bx)) | \ ((cast(Instruction, b)< C) then pc++ */ OP_TESTSET,/* A B C if (R(B) <=> C) then R(A) := R(B) else pc++ */ OP_CALL,/* A B C R(A), ... ,R(A+C-2) := R(A)(R(A+1), ... ,R(A+B-1)) */ OP_TAILCALL,/* A B C return R(A)(R(A+1), ... ,R(A+B-1)) */ OP_RETURN,/* A B return R(A), ... ,R(A+B-2) (see note) */ OP_FORLOOP,/* A sBx R(A)+=R(A+2); if R(A) =) R(A)*/ OP_CLOSURE,/* A Bx R(A) := closure(KPROTO[Bx], R(A), ... ,R(A+n)) */ OP_VARARG/* A B R(A), R(A+1), ..., R(A+B-1) = vararg */ } OpCode; #define NUM_OPCODES (cast(int, OP_VARARG) + 1) /*=========================================================================== Notes: (*) In OP_CALL, if (B == 0) then B = top. C is the number of returns - 1, and can be 0: OP_CALL then sets `top' to last_result+1, so next open instruction (OP_CALL, OP_RETURN, OP_SETLIST) may use `top'. (*) In OP_VARARG, if (B == 0) then use actual number of varargs and set top (like in OP_CALL with C == 0). (*) In OP_RETURN, if (B == 0) then return up to `top' (*) In OP_SETLIST, if (B == 0) then B = `top'; if (C == 0) then next `instruction' is real C (*) For comparisons, A specifies what condition the test should accept (true or false). (*) All `skips' (pc++) assume that next instruction is a jump ===========================================================================*/ /* ** masks for instruction properties. The format is: ** bits 0-1: op mode ** bits 2-3: C arg mode ** bits 4-5: B arg mode ** bit 6: instruction set register A ** bit 7: operator is a test */ enum OpArgMask { OpArgN, /* argument is not used */ OpArgU, /* argument is used */ OpArgR, /* argument is a register or a jump offset */ OpArgK /* argument is a constant or register/constant */ }; LUAI_DATA const lu_byte luaP_opmodes[NUM_OPCODES]; #define getOpMode(m) (cast(enum OpMode, luaP_opmodes[m] & 3)) #define getBMode(m) (cast(enum OpArgMask, (luaP_opmodes[m] >> 4) & 3)) #define getCMode(m) (cast(enum OpArgMask, (luaP_opmodes[m] >> 2) & 3)) #define testAMode(m) (luaP_opmodes[m] & (1 << 6)) #define testTMode(m) (luaP_opmodes[m] & (1 << 7)) LUAI_DATA const char *const luaP_opnames[NUM_OPCODES+1]; /* opcode names */ /* number of list items to accumulate before a SETLIST instruction */ #define LFIELDS_PER_FLUSH 50 #endif redis-2.6.16/deps/lua/src/loslib.c000066400000000000000000000135501220734223100166470ustar00rootroot00000000000000/* ** $Id: loslib.c,v 1.19.1.3 2008/01/18 16:38:18 roberto Exp $ ** Standard Operating System library ** See Copyright Notice in lua.h */ #include #include #include #include #include #define loslib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #include "lualib.h" static int os_pushresult (lua_State *L, int i, const char *filename) { int en = errno; /* calls to Lua API may change this value */ if (i) { lua_pushboolean(L, 1); return 1; } else { lua_pushnil(L); lua_pushfstring(L, "%s: %s", filename, strerror(en)); lua_pushinteger(L, en); return 3; } } static int os_execute (lua_State *L) { lua_pushinteger(L, system(luaL_optstring(L, 1, NULL))); return 1; } static int os_remove (lua_State *L) { const char *filename = luaL_checkstring(L, 1); return os_pushresult(L, remove(filename) == 0, filename); } static int os_rename (lua_State *L) { const char *fromname = luaL_checkstring(L, 1); const char *toname = luaL_checkstring(L, 2); return os_pushresult(L, rename(fromname, toname) == 0, fromname); } static int os_tmpname (lua_State *L) { char buff[LUA_TMPNAMBUFSIZE]; int err; lua_tmpnam(buff, err); if (err) return luaL_error(L, "unable to generate a unique filename"); lua_pushstring(L, buff); return 1; } static int os_getenv (lua_State *L) { lua_pushstring(L, getenv(luaL_checkstring(L, 1))); /* if NULL push nil */ return 1; } static int os_clock (lua_State *L) { lua_pushnumber(L, ((lua_Number)clock())/(lua_Number)CLOCKS_PER_SEC); return 1; } /* ** {====================================================== ** Time/Date operations ** { year=%Y, month=%m, day=%d, hour=%H, min=%M, sec=%S, ** wday=%w+1, yday=%j, isdst=? } ** ======================================================= */ static void setfield (lua_State *L, const char *key, int value) { lua_pushinteger(L, value); lua_setfield(L, -2, key); } static void setboolfield (lua_State *L, const char *key, int value) { if (value < 0) /* undefined? */ return; /* does not set field */ lua_pushboolean(L, value); lua_setfield(L, -2, key); } static int getboolfield (lua_State *L, const char *key) { int res; lua_getfield(L, -1, key); res = lua_isnil(L, -1) ? -1 : lua_toboolean(L, -1); lua_pop(L, 1); return res; } static int getfield (lua_State *L, const char *key, int d) { int res; lua_getfield(L, -1, key); if (lua_isnumber(L, -1)) res = (int)lua_tointeger(L, -1); else { if (d < 0) return luaL_error(L, "field " LUA_QS " missing in date table", key); res = d; } lua_pop(L, 1); return res; } static int os_date (lua_State *L) { const char *s = luaL_optstring(L, 1, "%c"); time_t t = luaL_opt(L, (time_t)luaL_checknumber, 2, time(NULL)); struct tm *stm; if (*s == '!') { /* UTC? */ stm = gmtime(&t); s++; /* skip `!' */ } else stm = localtime(&t); if (stm == NULL) /* invalid date? */ lua_pushnil(L); else if (strcmp(s, "*t") == 0) { lua_createtable(L, 0, 9); /* 9 = number of fields */ setfield(L, "sec", stm->tm_sec); setfield(L, "min", stm->tm_min); setfield(L, "hour", stm->tm_hour); setfield(L, "day", stm->tm_mday); setfield(L, "month", stm->tm_mon+1); setfield(L, "year", stm->tm_year+1900); setfield(L, "wday", stm->tm_wday+1); setfield(L, "yday", stm->tm_yday+1); setboolfield(L, "isdst", stm->tm_isdst); } else { char cc[3]; luaL_Buffer b; cc[0] = '%'; cc[2] = '\0'; luaL_buffinit(L, &b); for (; *s; s++) { if (*s != '%' || *(s + 1) == '\0') /* no conversion specifier? */ luaL_addchar(&b, *s); else { size_t reslen; char buff[200]; /* should be big enough for any conversion result */ cc[1] = *(++s); reslen = strftime(buff, sizeof(buff), cc, stm); luaL_addlstring(&b, buff, reslen); } } luaL_pushresult(&b); } return 1; } static int os_time (lua_State *L) { time_t t; if (lua_isnoneornil(L, 1)) /* called without args? */ t = time(NULL); /* get current time */ else { struct tm ts; luaL_checktype(L, 1, LUA_TTABLE); lua_settop(L, 1); /* make sure table is at the top */ ts.tm_sec = getfield(L, "sec", 0); ts.tm_min = getfield(L, "min", 0); ts.tm_hour = getfield(L, "hour", 12); ts.tm_mday = getfield(L, "day", -1); ts.tm_mon = getfield(L, "month", -1) - 1; ts.tm_year = getfield(L, "year", -1) - 1900; ts.tm_isdst = getboolfield(L, "isdst"); t = mktime(&ts); } if (t == (time_t)(-1)) lua_pushnil(L); else lua_pushnumber(L, (lua_Number)t); return 1; } static int os_difftime (lua_State *L) { lua_pushnumber(L, difftime((time_t)(luaL_checknumber(L, 1)), (time_t)(luaL_optnumber(L, 2, 0)))); return 1; } /* }====================================================== */ static int os_setlocale (lua_State *L) { static const int cat[] = {LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, LC_NUMERIC, LC_TIME}; static const char *const catnames[] = {"all", "collate", "ctype", "monetary", "numeric", "time", NULL}; const char *l = luaL_optstring(L, 1, NULL); int op = luaL_checkoption(L, 2, "all", catnames); lua_pushstring(L, setlocale(cat[op], l)); return 1; } static int os_exit (lua_State *L) { exit(luaL_optint(L, 1, EXIT_SUCCESS)); } static const luaL_Reg syslib[] = { {"clock", os_clock}, {"date", os_date}, {"difftime", os_difftime}, {"execute", os_execute}, {"exit", os_exit}, {"getenv", os_getenv}, {"remove", os_remove}, {"rename", os_rename}, {"setlocale", os_setlocale}, {"time", os_time}, {"tmpname", os_tmpname}, {NULL, NULL} }; /* }====================================================== */ LUALIB_API int luaopen_os (lua_State *L) { luaL_register(L, LUA_OSLIBNAME, syslib); return 1; } redis-2.6.16/deps/lua/src/lparser.c000066400000000000000000001075301220734223100170350ustar00rootroot00000000000000/* ** $Id: lparser.c,v 2.42.1.4 2011/10/21 19:31:42 roberto Exp $ ** Lua Parser ** See Copyright Notice in lua.h */ #include #define lparser_c #define LUA_CORE #include "lua.h" #include "lcode.h" #include "ldebug.h" #include "ldo.h" #include "lfunc.h" #include "llex.h" #include "lmem.h" #include "lobject.h" #include "lopcodes.h" #include "lparser.h" #include "lstate.h" #include "lstring.h" #include "ltable.h" #define hasmultret(k) ((k) == VCALL || (k) == VVARARG) #define getlocvar(fs, i) ((fs)->f->locvars[(fs)->actvar[i]]) #define luaY_checklimit(fs,v,l,m) if ((v)>(l)) errorlimit(fs,l,m) /* ** nodes for block list (list of active blocks) */ typedef struct BlockCnt { struct BlockCnt *previous; /* chain */ int breaklist; /* list of jumps out of this loop */ lu_byte nactvar; /* # active locals outside the breakable structure */ lu_byte upval; /* true if some variable in the block is an upvalue */ lu_byte isbreakable; /* true if `block' is a loop */ } BlockCnt; /* ** prototypes for recursive non-terminal functions */ static void chunk (LexState *ls); static void expr (LexState *ls, expdesc *v); static void anchor_token (LexState *ls) { if (ls->t.token == TK_NAME || ls->t.token == TK_STRING) { TString *ts = ls->t.seminfo.ts; luaX_newstring(ls, getstr(ts), ts->tsv.len); } } static void error_expected (LexState *ls, int token) { luaX_syntaxerror(ls, luaO_pushfstring(ls->L, LUA_QS " expected", luaX_token2str(ls, token))); } static void errorlimit (FuncState *fs, int limit, const char *what) { const char *msg = (fs->f->linedefined == 0) ? luaO_pushfstring(fs->L, "main function has more than %d %s", limit, what) : luaO_pushfstring(fs->L, "function at line %d has more than %d %s", fs->f->linedefined, limit, what); luaX_lexerror(fs->ls, msg, 0); } static int testnext (LexState *ls, int c) { if (ls->t.token == c) { luaX_next(ls); return 1; } else return 0; } static void check (LexState *ls, int c) { if (ls->t.token != c) error_expected(ls, c); } static void checknext (LexState *ls, int c) { check(ls, c); luaX_next(ls); } #define check_condition(ls,c,msg) { if (!(c)) luaX_syntaxerror(ls, msg); } static void check_match (LexState *ls, int what, int who, int where) { if (!testnext(ls, what)) { if (where == ls->linenumber) error_expected(ls, what); else { luaX_syntaxerror(ls, luaO_pushfstring(ls->L, LUA_QS " expected (to close " LUA_QS " at line %d)", luaX_token2str(ls, what), luaX_token2str(ls, who), where)); } } } static TString *str_checkname (LexState *ls) { TString *ts; check(ls, TK_NAME); ts = ls->t.seminfo.ts; luaX_next(ls); return ts; } static void init_exp (expdesc *e, expkind k, int i) { e->f = e->t = NO_JUMP; e->k = k; e->u.s.info = i; } static void codestring (LexState *ls, expdesc *e, TString *s) { init_exp(e, VK, luaK_stringK(ls->fs, s)); } static void checkname(LexState *ls, expdesc *e) { codestring(ls, e, str_checkname(ls)); } static int registerlocalvar (LexState *ls, TString *varname) { FuncState *fs = ls->fs; Proto *f = fs->f; int oldsize = f->sizelocvars; luaM_growvector(ls->L, f->locvars, fs->nlocvars, f->sizelocvars, LocVar, SHRT_MAX, "too many local variables"); while (oldsize < f->sizelocvars) f->locvars[oldsize++].varname = NULL; f->locvars[fs->nlocvars].varname = varname; luaC_objbarrier(ls->L, f, varname); return fs->nlocvars++; } #define new_localvarliteral(ls,v,n) \ new_localvar(ls, luaX_newstring(ls, "" v, (sizeof(v)/sizeof(char))-1), n) static void new_localvar (LexState *ls, TString *name, int n) { FuncState *fs = ls->fs; luaY_checklimit(fs, fs->nactvar+n+1, LUAI_MAXVARS, "local variables"); fs->actvar[fs->nactvar+n] = cast(unsigned short, registerlocalvar(ls, name)); } static void adjustlocalvars (LexState *ls, int nvars) { FuncState *fs = ls->fs; fs->nactvar = cast_byte(fs->nactvar + nvars); for (; nvars; nvars--) { getlocvar(fs, fs->nactvar - nvars).startpc = fs->pc; } } static void removevars (LexState *ls, int tolevel) { FuncState *fs = ls->fs; while (fs->nactvar > tolevel) getlocvar(fs, --fs->nactvar).endpc = fs->pc; } static int indexupvalue (FuncState *fs, TString *name, expdesc *v) { int i; Proto *f = fs->f; int oldsize = f->sizeupvalues; for (i=0; inups; i++) { if (fs->upvalues[i].k == v->k && fs->upvalues[i].info == v->u.s.info) { lua_assert(f->upvalues[i] == name); return i; } } /* new one */ luaY_checklimit(fs, f->nups + 1, LUAI_MAXUPVALUES, "upvalues"); luaM_growvector(fs->L, f->upvalues, f->nups, f->sizeupvalues, TString *, MAX_INT, ""); while (oldsize < f->sizeupvalues) f->upvalues[oldsize++] = NULL; f->upvalues[f->nups] = name; luaC_objbarrier(fs->L, f, name); lua_assert(v->k == VLOCAL || v->k == VUPVAL); fs->upvalues[f->nups].k = cast_byte(v->k); fs->upvalues[f->nups].info = cast_byte(v->u.s.info); return f->nups++; } static int searchvar (FuncState *fs, TString *n) { int i; for (i=fs->nactvar-1; i >= 0; i--) { if (n == getlocvar(fs, i).varname) return i; } return -1; /* not found */ } static void markupval (FuncState *fs, int level) { BlockCnt *bl = fs->bl; while (bl && bl->nactvar > level) bl = bl->previous; if (bl) bl->upval = 1; } static int singlevaraux (FuncState *fs, TString *n, expdesc *var, int base) { if (fs == NULL) { /* no more levels? */ init_exp(var, VGLOBAL, NO_REG); /* default is global variable */ return VGLOBAL; } else { int v = searchvar(fs, n); /* look up at current level */ if (v >= 0) { init_exp(var, VLOCAL, v); if (!base) markupval(fs, v); /* local will be used as an upval */ return VLOCAL; } else { /* not found at current level; try upper one */ if (singlevaraux(fs->prev, n, var, 0) == VGLOBAL) return VGLOBAL; var->u.s.info = indexupvalue(fs, n, var); /* else was LOCAL or UPVAL */ var->k = VUPVAL; /* upvalue in this level */ return VUPVAL; } } } static void singlevar (LexState *ls, expdesc *var) { TString *varname = str_checkname(ls); FuncState *fs = ls->fs; if (singlevaraux(fs, varname, var, 1) == VGLOBAL) var->u.s.info = luaK_stringK(fs, varname); /* info points to global name */ } static void adjust_assign (LexState *ls, int nvars, int nexps, expdesc *e) { FuncState *fs = ls->fs; int extra = nvars - nexps; if (hasmultret(e->k)) { extra++; /* includes call itself */ if (extra < 0) extra = 0; luaK_setreturns(fs, e, extra); /* last exp. provides the difference */ if (extra > 1) luaK_reserveregs(fs, extra-1); } else { if (e->k != VVOID) luaK_exp2nextreg(fs, e); /* close last expression */ if (extra > 0) { int reg = fs->freereg; luaK_reserveregs(fs, extra); luaK_nil(fs, reg, extra); } } } static void enterlevel (LexState *ls) { if (++ls->L->nCcalls > LUAI_MAXCCALLS) luaX_lexerror(ls, "chunk has too many syntax levels", 0); } #define leavelevel(ls) ((ls)->L->nCcalls--) static void enterblock (FuncState *fs, BlockCnt *bl, lu_byte isbreakable) { bl->breaklist = NO_JUMP; bl->isbreakable = isbreakable; bl->nactvar = fs->nactvar; bl->upval = 0; bl->previous = fs->bl; fs->bl = bl; lua_assert(fs->freereg == fs->nactvar); } static void leaveblock (FuncState *fs) { BlockCnt *bl = fs->bl; fs->bl = bl->previous; removevars(fs->ls, bl->nactvar); if (bl->upval) luaK_codeABC(fs, OP_CLOSE, bl->nactvar, 0, 0); /* a block either controls scope or breaks (never both) */ lua_assert(!bl->isbreakable || !bl->upval); lua_assert(bl->nactvar == fs->nactvar); fs->freereg = fs->nactvar; /* free registers */ luaK_patchtohere(fs, bl->breaklist); } static void pushclosure (LexState *ls, FuncState *func, expdesc *v) { FuncState *fs = ls->fs; Proto *f = fs->f; int oldsize = f->sizep; int i; luaM_growvector(ls->L, f->p, fs->np, f->sizep, Proto *, MAXARG_Bx, "constant table overflow"); while (oldsize < f->sizep) f->p[oldsize++] = NULL; f->p[fs->np++] = func->f; luaC_objbarrier(ls->L, f, func->f); init_exp(v, VRELOCABLE, luaK_codeABx(fs, OP_CLOSURE, 0, fs->np-1)); for (i=0; if->nups; i++) { OpCode o = (func->upvalues[i].k == VLOCAL) ? OP_MOVE : OP_GETUPVAL; luaK_codeABC(fs, o, 0, func->upvalues[i].info, 0); } } static void open_func (LexState *ls, FuncState *fs) { lua_State *L = ls->L; Proto *f = luaF_newproto(L); fs->f = f; fs->prev = ls->fs; /* linked list of funcstates */ fs->ls = ls; fs->L = L; ls->fs = fs; fs->pc = 0; fs->lasttarget = -1; fs->jpc = NO_JUMP; fs->freereg = 0; fs->nk = 0; fs->np = 0; fs->nlocvars = 0; fs->nactvar = 0; fs->bl = NULL; f->source = ls->source; f->maxstacksize = 2; /* registers 0/1 are always valid */ fs->h = luaH_new(L, 0, 0); /* anchor table of constants and prototype (to avoid being collected) */ sethvalue2s(L, L->top, fs->h); incr_top(L); setptvalue2s(L, L->top, f); incr_top(L); } static void close_func (LexState *ls) { lua_State *L = ls->L; FuncState *fs = ls->fs; Proto *f = fs->f; removevars(ls, 0); luaK_ret(fs, 0, 0); /* final return */ luaM_reallocvector(L, f->code, f->sizecode, fs->pc, Instruction); f->sizecode = fs->pc; luaM_reallocvector(L, f->lineinfo, f->sizelineinfo, fs->pc, int); f->sizelineinfo = fs->pc; luaM_reallocvector(L, f->k, f->sizek, fs->nk, TValue); f->sizek = fs->nk; luaM_reallocvector(L, f->p, f->sizep, fs->np, Proto *); f->sizep = fs->np; luaM_reallocvector(L, f->locvars, f->sizelocvars, fs->nlocvars, LocVar); f->sizelocvars = fs->nlocvars; luaM_reallocvector(L, f->upvalues, f->sizeupvalues, f->nups, TString *); f->sizeupvalues = f->nups; lua_assert(luaG_checkcode(f)); lua_assert(fs->bl == NULL); ls->fs = fs->prev; /* last token read was anchored in defunct function; must reanchor it */ if (fs) anchor_token(ls); L->top -= 2; /* remove table and prototype from the stack */ } Proto *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff, const char *name) { struct LexState lexstate; struct FuncState funcstate; lexstate.buff = buff; luaX_setinput(L, &lexstate, z, luaS_new(L, name)); open_func(&lexstate, &funcstate); funcstate.f->is_vararg = VARARG_ISVARARG; /* main func. is always vararg */ luaX_next(&lexstate); /* read first token */ chunk(&lexstate); check(&lexstate, TK_EOS); close_func(&lexstate); lua_assert(funcstate.prev == NULL); lua_assert(funcstate.f->nups == 0); lua_assert(lexstate.fs == NULL); return funcstate.f; } /*============================================================*/ /* GRAMMAR RULES */ /*============================================================*/ static void field (LexState *ls, expdesc *v) { /* field -> ['.' | ':'] NAME */ FuncState *fs = ls->fs; expdesc key; luaK_exp2anyreg(fs, v); luaX_next(ls); /* skip the dot or colon */ checkname(ls, &key); luaK_indexed(fs, v, &key); } static void yindex (LexState *ls, expdesc *v) { /* index -> '[' expr ']' */ luaX_next(ls); /* skip the '[' */ expr(ls, v); luaK_exp2val(ls->fs, v); checknext(ls, ']'); } /* ** {====================================================================== ** Rules for Constructors ** ======================================================================= */ struct ConsControl { expdesc v; /* last list item read */ expdesc *t; /* table descriptor */ int nh; /* total number of `record' elements */ int na; /* total number of array elements */ int tostore; /* number of array elements pending to be stored */ }; static void recfield (LexState *ls, struct ConsControl *cc) { /* recfield -> (NAME | `['exp1`]') = exp1 */ FuncState *fs = ls->fs; int reg = ls->fs->freereg; expdesc key, val; int rkkey; if (ls->t.token == TK_NAME) { luaY_checklimit(fs, cc->nh, MAX_INT, "items in a constructor"); checkname(ls, &key); } else /* ls->t.token == '[' */ yindex(ls, &key); cc->nh++; checknext(ls, '='); rkkey = luaK_exp2RK(fs, &key); expr(ls, &val); luaK_codeABC(fs, OP_SETTABLE, cc->t->u.s.info, rkkey, luaK_exp2RK(fs, &val)); fs->freereg = reg; /* free registers */ } static void closelistfield (FuncState *fs, struct ConsControl *cc) { if (cc->v.k == VVOID) return; /* there is no list item */ luaK_exp2nextreg(fs, &cc->v); cc->v.k = VVOID; if (cc->tostore == LFIELDS_PER_FLUSH) { luaK_setlist(fs, cc->t->u.s.info, cc->na, cc->tostore); /* flush */ cc->tostore = 0; /* no more items pending */ } } static void lastlistfield (FuncState *fs, struct ConsControl *cc) { if (cc->tostore == 0) return; if (hasmultret(cc->v.k)) { luaK_setmultret(fs, &cc->v); luaK_setlist(fs, cc->t->u.s.info, cc->na, LUA_MULTRET); cc->na--; /* do not count last expression (unknown number of elements) */ } else { if (cc->v.k != VVOID) luaK_exp2nextreg(fs, &cc->v); luaK_setlist(fs, cc->t->u.s.info, cc->na, cc->tostore); } } static void listfield (LexState *ls, struct ConsControl *cc) { expr(ls, &cc->v); luaY_checklimit(ls->fs, cc->na, MAX_INT, "items in a constructor"); cc->na++; cc->tostore++; } static void constructor (LexState *ls, expdesc *t) { /* constructor -> ?? */ FuncState *fs = ls->fs; int line = ls->linenumber; int pc = luaK_codeABC(fs, OP_NEWTABLE, 0, 0, 0); struct ConsControl cc; cc.na = cc.nh = cc.tostore = 0; cc.t = t; init_exp(t, VRELOCABLE, pc); init_exp(&cc.v, VVOID, 0); /* no value (yet) */ luaK_exp2nextreg(ls->fs, t); /* fix it at stack top (for gc) */ checknext(ls, '{'); do { lua_assert(cc.v.k == VVOID || cc.tostore > 0); if (ls->t.token == '}') break; closelistfield(fs, &cc); switch(ls->t.token) { case TK_NAME: { /* may be listfields or recfields */ luaX_lookahead(ls); if (ls->lookahead.token != '=') /* expression? */ listfield(ls, &cc); else recfield(ls, &cc); break; } case '[': { /* constructor_item -> recfield */ recfield(ls, &cc); break; } default: { /* constructor_part -> listfield */ listfield(ls, &cc); break; } } } while (testnext(ls, ',') || testnext(ls, ';')); check_match(ls, '}', '{', line); lastlistfield(fs, &cc); SETARG_B(fs->f->code[pc], luaO_int2fb(cc.na)); /* set initial array size */ SETARG_C(fs->f->code[pc], luaO_int2fb(cc.nh)); /* set initial table size */ } /* }====================================================================== */ static void parlist (LexState *ls) { /* parlist -> [ param { `,' param } ] */ FuncState *fs = ls->fs; Proto *f = fs->f; int nparams = 0; f->is_vararg = 0; if (ls->t.token != ')') { /* is `parlist' not empty? */ do { switch (ls->t.token) { case TK_NAME: { /* param -> NAME */ new_localvar(ls, str_checkname(ls), nparams++); break; } case TK_DOTS: { /* param -> `...' */ luaX_next(ls); #if defined(LUA_COMPAT_VARARG) /* use `arg' as default name */ new_localvarliteral(ls, "arg", nparams++); f->is_vararg = VARARG_HASARG | VARARG_NEEDSARG; #endif f->is_vararg |= VARARG_ISVARARG; break; } default: luaX_syntaxerror(ls, " or " LUA_QL("...") " expected"); } } while (!f->is_vararg && testnext(ls, ',')); } adjustlocalvars(ls, nparams); f->numparams = cast_byte(fs->nactvar - (f->is_vararg & VARARG_HASARG)); luaK_reserveregs(fs, fs->nactvar); /* reserve register for parameters */ } static void body (LexState *ls, expdesc *e, int needself, int line) { /* body -> `(' parlist `)' chunk END */ FuncState new_fs; open_func(ls, &new_fs); new_fs.f->linedefined = line; checknext(ls, '('); if (needself) { new_localvarliteral(ls, "self", 0); adjustlocalvars(ls, 1); } parlist(ls); checknext(ls, ')'); chunk(ls); new_fs.f->lastlinedefined = ls->linenumber; check_match(ls, TK_END, TK_FUNCTION, line); close_func(ls); pushclosure(ls, &new_fs, e); } static int explist1 (LexState *ls, expdesc *v) { /* explist1 -> expr { `,' expr } */ int n = 1; /* at least one expression */ expr(ls, v); while (testnext(ls, ',')) { luaK_exp2nextreg(ls->fs, v); expr(ls, v); n++; } return n; } static void funcargs (LexState *ls, expdesc *f) { FuncState *fs = ls->fs; expdesc args; int base, nparams; int line = ls->linenumber; switch (ls->t.token) { case '(': { /* funcargs -> `(' [ explist1 ] `)' */ if (line != ls->lastline) luaX_syntaxerror(ls,"ambiguous syntax (function call x new statement)"); luaX_next(ls); if (ls->t.token == ')') /* arg list is empty? */ args.k = VVOID; else { explist1(ls, &args); luaK_setmultret(fs, &args); } check_match(ls, ')', '(', line); break; } case '{': { /* funcargs -> constructor */ constructor(ls, &args); break; } case TK_STRING: { /* funcargs -> STRING */ codestring(ls, &args, ls->t.seminfo.ts); luaX_next(ls); /* must use `seminfo' before `next' */ break; } default: { luaX_syntaxerror(ls, "function arguments expected"); return; } } lua_assert(f->k == VNONRELOC); base = f->u.s.info; /* base register for call */ if (hasmultret(args.k)) nparams = LUA_MULTRET; /* open call */ else { if (args.k != VVOID) luaK_exp2nextreg(fs, &args); /* close last argument */ nparams = fs->freereg - (base+1); } init_exp(f, VCALL, luaK_codeABC(fs, OP_CALL, base, nparams+1, 2)); luaK_fixline(fs, line); fs->freereg = base+1; /* call remove function and arguments and leaves (unless changed) one result */ } /* ** {====================================================================== ** Expression parsing ** ======================================================================= */ static void prefixexp (LexState *ls, expdesc *v) { /* prefixexp -> NAME | '(' expr ')' */ switch (ls->t.token) { case '(': { int line = ls->linenumber; luaX_next(ls); expr(ls, v); check_match(ls, ')', '(', line); luaK_dischargevars(ls->fs, v); return; } case TK_NAME: { singlevar(ls, v); return; } default: { luaX_syntaxerror(ls, "unexpected symbol"); return; } } } static void primaryexp (LexState *ls, expdesc *v) { /* primaryexp -> prefixexp { `.' NAME | `[' exp `]' | `:' NAME funcargs | funcargs } */ FuncState *fs = ls->fs; prefixexp(ls, v); for (;;) { switch (ls->t.token) { case '.': { /* field */ field(ls, v); break; } case '[': { /* `[' exp1 `]' */ expdesc key; luaK_exp2anyreg(fs, v); yindex(ls, &key); luaK_indexed(fs, v, &key); break; } case ':': { /* `:' NAME funcargs */ expdesc key; luaX_next(ls); checkname(ls, &key); luaK_self(fs, v, &key); funcargs(ls, v); break; } case '(': case TK_STRING: case '{': { /* funcargs */ luaK_exp2nextreg(fs, v); funcargs(ls, v); break; } default: return; } } } static void simpleexp (LexState *ls, expdesc *v) { /* simpleexp -> NUMBER | STRING | NIL | true | false | ... | constructor | FUNCTION body | primaryexp */ switch (ls->t.token) { case TK_NUMBER: { init_exp(v, VKNUM, 0); v->u.nval = ls->t.seminfo.r; break; } case TK_STRING: { codestring(ls, v, ls->t.seminfo.ts); break; } case TK_NIL: { init_exp(v, VNIL, 0); break; } case TK_TRUE: { init_exp(v, VTRUE, 0); break; } case TK_FALSE: { init_exp(v, VFALSE, 0); break; } case TK_DOTS: { /* vararg */ FuncState *fs = ls->fs; check_condition(ls, fs->f->is_vararg, "cannot use " LUA_QL("...") " outside a vararg function"); fs->f->is_vararg &= ~VARARG_NEEDSARG; /* don't need 'arg' */ init_exp(v, VVARARG, luaK_codeABC(fs, OP_VARARG, 0, 1, 0)); break; } case '{': { /* constructor */ constructor(ls, v); return; } case TK_FUNCTION: { luaX_next(ls); body(ls, v, 0, ls->linenumber); return; } default: { primaryexp(ls, v); return; } } luaX_next(ls); } static UnOpr getunopr (int op) { switch (op) { case TK_NOT: return OPR_NOT; case '-': return OPR_MINUS; case '#': return OPR_LEN; default: return OPR_NOUNOPR; } } static BinOpr getbinopr (int op) { switch (op) { case '+': return OPR_ADD; case '-': return OPR_SUB; case '*': return OPR_MUL; case '/': return OPR_DIV; case '%': return OPR_MOD; case '^': return OPR_POW; case TK_CONCAT: return OPR_CONCAT; case TK_NE: return OPR_NE; case TK_EQ: return OPR_EQ; case '<': return OPR_LT; case TK_LE: return OPR_LE; case '>': return OPR_GT; case TK_GE: return OPR_GE; case TK_AND: return OPR_AND; case TK_OR: return OPR_OR; default: return OPR_NOBINOPR; } } static const struct { lu_byte left; /* left priority for each binary operator */ lu_byte right; /* right priority */ } priority[] = { /* ORDER OPR */ {6, 6}, {6, 6}, {7, 7}, {7, 7}, {7, 7}, /* `+' `-' `/' `%' */ {10, 9}, {5, 4}, /* power and concat (right associative) */ {3, 3}, {3, 3}, /* equality and inequality */ {3, 3}, {3, 3}, {3, 3}, {3, 3}, /* order */ {2, 2}, {1, 1} /* logical (and/or) */ }; #define UNARY_PRIORITY 8 /* priority for unary operators */ /* ** subexpr -> (simpleexp | unop subexpr) { binop subexpr } ** where `binop' is any binary operator with a priority higher than `limit' */ static BinOpr subexpr (LexState *ls, expdesc *v, unsigned int limit) { BinOpr op; UnOpr uop; enterlevel(ls); uop = getunopr(ls->t.token); if (uop != OPR_NOUNOPR) { luaX_next(ls); subexpr(ls, v, UNARY_PRIORITY); luaK_prefix(ls->fs, uop, v); } else simpleexp(ls, v); /* expand while operators have priorities higher than `limit' */ op = getbinopr(ls->t.token); while (op != OPR_NOBINOPR && priority[op].left > limit) { expdesc v2; BinOpr nextop; luaX_next(ls); luaK_infix(ls->fs, op, v); /* read sub-expression with higher priority */ nextop = subexpr(ls, &v2, priority[op].right); luaK_posfix(ls->fs, op, v, &v2); op = nextop; } leavelevel(ls); return op; /* return first untreated operator */ } static void expr (LexState *ls, expdesc *v) { subexpr(ls, v, 0); } /* }==================================================================== */ /* ** {====================================================================== ** Rules for Statements ** ======================================================================= */ static int block_follow (int token) { switch (token) { case TK_ELSE: case TK_ELSEIF: case TK_END: case TK_UNTIL: case TK_EOS: return 1; default: return 0; } } static void block (LexState *ls) { /* block -> chunk */ FuncState *fs = ls->fs; BlockCnt bl; enterblock(fs, &bl, 0); chunk(ls); lua_assert(bl.breaklist == NO_JUMP); leaveblock(fs); } /* ** structure to chain all variables in the left-hand side of an ** assignment */ struct LHS_assign { struct LHS_assign *prev; expdesc v; /* variable (global, local, upvalue, or indexed) */ }; /* ** check whether, in an assignment to a local variable, the local variable ** is needed in a previous assignment (to a table). If so, save original ** local value in a safe place and use this safe copy in the previous ** assignment. */ static void check_conflict (LexState *ls, struct LHS_assign *lh, expdesc *v) { FuncState *fs = ls->fs; int extra = fs->freereg; /* eventual position to save local variable */ int conflict = 0; for (; lh; lh = lh->prev) { if (lh->v.k == VINDEXED) { if (lh->v.u.s.info == v->u.s.info) { /* conflict? */ conflict = 1; lh->v.u.s.info = extra; /* previous assignment will use safe copy */ } if (lh->v.u.s.aux == v->u.s.info) { /* conflict? */ conflict = 1; lh->v.u.s.aux = extra; /* previous assignment will use safe copy */ } } } if (conflict) { luaK_codeABC(fs, OP_MOVE, fs->freereg, v->u.s.info, 0); /* make copy */ luaK_reserveregs(fs, 1); } } static void assignment (LexState *ls, struct LHS_assign *lh, int nvars) { expdesc e; check_condition(ls, VLOCAL <= lh->v.k && lh->v.k <= VINDEXED, "syntax error"); if (testnext(ls, ',')) { /* assignment -> `,' primaryexp assignment */ struct LHS_assign nv; nv.prev = lh; primaryexp(ls, &nv.v); if (nv.v.k == VLOCAL) check_conflict(ls, lh, &nv.v); luaY_checklimit(ls->fs, nvars, LUAI_MAXCCALLS - ls->L->nCcalls, "variables in assignment"); assignment(ls, &nv, nvars+1); } else { /* assignment -> `=' explist1 */ int nexps; checknext(ls, '='); nexps = explist1(ls, &e); if (nexps != nvars) { adjust_assign(ls, nvars, nexps, &e); if (nexps > nvars) ls->fs->freereg -= nexps - nvars; /* remove extra values */ } else { luaK_setoneret(ls->fs, &e); /* close last expression */ luaK_storevar(ls->fs, &lh->v, &e); return; /* avoid default */ } } init_exp(&e, VNONRELOC, ls->fs->freereg-1); /* default assignment */ luaK_storevar(ls->fs, &lh->v, &e); } static int cond (LexState *ls) { /* cond -> exp */ expdesc v; expr(ls, &v); /* read condition */ if (v.k == VNIL) v.k = VFALSE; /* `falses' are all equal here */ luaK_goiftrue(ls->fs, &v); return v.f; } static void breakstat (LexState *ls) { FuncState *fs = ls->fs; BlockCnt *bl = fs->bl; int upval = 0; while (bl && !bl->isbreakable) { upval |= bl->upval; bl = bl->previous; } if (!bl) luaX_syntaxerror(ls, "no loop to break"); if (upval) luaK_codeABC(fs, OP_CLOSE, bl->nactvar, 0, 0); luaK_concat(fs, &bl->breaklist, luaK_jump(fs)); } static void whilestat (LexState *ls, int line) { /* whilestat -> WHILE cond DO block END */ FuncState *fs = ls->fs; int whileinit; int condexit; BlockCnt bl; luaX_next(ls); /* skip WHILE */ whileinit = luaK_getlabel(fs); condexit = cond(ls); enterblock(fs, &bl, 1); checknext(ls, TK_DO); block(ls); luaK_patchlist(fs, luaK_jump(fs), whileinit); check_match(ls, TK_END, TK_WHILE, line); leaveblock(fs); luaK_patchtohere(fs, condexit); /* false conditions finish the loop */ } static void repeatstat (LexState *ls, int line) { /* repeatstat -> REPEAT block UNTIL cond */ int condexit; FuncState *fs = ls->fs; int repeat_init = luaK_getlabel(fs); BlockCnt bl1, bl2; enterblock(fs, &bl1, 1); /* loop block */ enterblock(fs, &bl2, 0); /* scope block */ luaX_next(ls); /* skip REPEAT */ chunk(ls); check_match(ls, TK_UNTIL, TK_REPEAT, line); condexit = cond(ls); /* read condition (inside scope block) */ if (!bl2.upval) { /* no upvalues? */ leaveblock(fs); /* finish scope */ luaK_patchlist(ls->fs, condexit, repeat_init); /* close the loop */ } else { /* complete semantics when there are upvalues */ breakstat(ls); /* if condition then break */ luaK_patchtohere(ls->fs, condexit); /* else... */ leaveblock(fs); /* finish scope... */ luaK_patchlist(ls->fs, luaK_jump(fs), repeat_init); /* and repeat */ } leaveblock(fs); /* finish loop */ } static int exp1 (LexState *ls) { expdesc e; int k; expr(ls, &e); k = e.k; luaK_exp2nextreg(ls->fs, &e); return k; } static void forbody (LexState *ls, int base, int line, int nvars, int isnum) { /* forbody -> DO block */ BlockCnt bl; FuncState *fs = ls->fs; int prep, endfor; adjustlocalvars(ls, 3); /* control variables */ checknext(ls, TK_DO); prep = isnum ? luaK_codeAsBx(fs, OP_FORPREP, base, NO_JUMP) : luaK_jump(fs); enterblock(fs, &bl, 0); /* scope for declared variables */ adjustlocalvars(ls, nvars); luaK_reserveregs(fs, nvars); block(ls); leaveblock(fs); /* end of scope for declared variables */ luaK_patchtohere(fs, prep); endfor = (isnum) ? luaK_codeAsBx(fs, OP_FORLOOP, base, NO_JUMP) : luaK_codeABC(fs, OP_TFORLOOP, base, 0, nvars); luaK_fixline(fs, line); /* pretend that `OP_FOR' starts the loop */ luaK_patchlist(fs, (isnum ? endfor : luaK_jump(fs)), prep + 1); } static void fornum (LexState *ls, TString *varname, int line) { /* fornum -> NAME = exp1,exp1[,exp1] forbody */ FuncState *fs = ls->fs; int base = fs->freereg; new_localvarliteral(ls, "(for index)", 0); new_localvarliteral(ls, "(for limit)", 1); new_localvarliteral(ls, "(for step)", 2); new_localvar(ls, varname, 3); checknext(ls, '='); exp1(ls); /* initial value */ checknext(ls, ','); exp1(ls); /* limit */ if (testnext(ls, ',')) exp1(ls); /* optional step */ else { /* default step = 1 */ luaK_codeABx(fs, OP_LOADK, fs->freereg, luaK_numberK(fs, 1)); luaK_reserveregs(fs, 1); } forbody(ls, base, line, 1, 1); } static void forlist (LexState *ls, TString *indexname) { /* forlist -> NAME {,NAME} IN explist1 forbody */ FuncState *fs = ls->fs; expdesc e; int nvars = 0; int line; int base = fs->freereg; /* create control variables */ new_localvarliteral(ls, "(for generator)", nvars++); new_localvarliteral(ls, "(for state)", nvars++); new_localvarliteral(ls, "(for control)", nvars++); /* create declared variables */ new_localvar(ls, indexname, nvars++); while (testnext(ls, ',')) new_localvar(ls, str_checkname(ls), nvars++); checknext(ls, TK_IN); line = ls->linenumber; adjust_assign(ls, 3, explist1(ls, &e), &e); luaK_checkstack(fs, 3); /* extra space to call generator */ forbody(ls, base, line, nvars - 3, 0); } static void forstat (LexState *ls, int line) { /* forstat -> FOR (fornum | forlist) END */ FuncState *fs = ls->fs; TString *varname; BlockCnt bl; enterblock(fs, &bl, 1); /* scope for loop and control variables */ luaX_next(ls); /* skip `for' */ varname = str_checkname(ls); /* first variable name */ switch (ls->t.token) { case '=': fornum(ls, varname, line); break; case ',': case TK_IN: forlist(ls, varname); break; default: luaX_syntaxerror(ls, LUA_QL("=") " or " LUA_QL("in") " expected"); } check_match(ls, TK_END, TK_FOR, line); leaveblock(fs); /* loop scope (`break' jumps to this point) */ } static int test_then_block (LexState *ls) { /* test_then_block -> [IF | ELSEIF] cond THEN block */ int condexit; luaX_next(ls); /* skip IF or ELSEIF */ condexit = cond(ls); checknext(ls, TK_THEN); block(ls); /* `then' part */ return condexit; } static void ifstat (LexState *ls, int line) { /* ifstat -> IF cond THEN block {ELSEIF cond THEN block} [ELSE block] END */ FuncState *fs = ls->fs; int flist; int escapelist = NO_JUMP; flist = test_then_block(ls); /* IF cond THEN block */ while (ls->t.token == TK_ELSEIF) { luaK_concat(fs, &escapelist, luaK_jump(fs)); luaK_patchtohere(fs, flist); flist = test_then_block(ls); /* ELSEIF cond THEN block */ } if (ls->t.token == TK_ELSE) { luaK_concat(fs, &escapelist, luaK_jump(fs)); luaK_patchtohere(fs, flist); luaX_next(ls); /* skip ELSE (after patch, for correct line info) */ block(ls); /* `else' part */ } else luaK_concat(fs, &escapelist, flist); luaK_patchtohere(fs, escapelist); check_match(ls, TK_END, TK_IF, line); } static void localfunc (LexState *ls) { expdesc v, b; FuncState *fs = ls->fs; new_localvar(ls, str_checkname(ls), 0); init_exp(&v, VLOCAL, fs->freereg); luaK_reserveregs(fs, 1); adjustlocalvars(ls, 1); body(ls, &b, 0, ls->linenumber); luaK_storevar(fs, &v, &b); /* debug information will only see the variable after this point! */ getlocvar(fs, fs->nactvar - 1).startpc = fs->pc; } static void localstat (LexState *ls) { /* stat -> LOCAL NAME {`,' NAME} [`=' explist1] */ int nvars = 0; int nexps; expdesc e; do { new_localvar(ls, str_checkname(ls), nvars++); } while (testnext(ls, ',')); if (testnext(ls, '=')) nexps = explist1(ls, &e); else { e.k = VVOID; nexps = 0; } adjust_assign(ls, nvars, nexps, &e); adjustlocalvars(ls, nvars); } static int funcname (LexState *ls, expdesc *v) { /* funcname -> NAME {field} [`:' NAME] */ int needself = 0; singlevar(ls, v); while (ls->t.token == '.') field(ls, v); if (ls->t.token == ':') { needself = 1; field(ls, v); } return needself; } static void funcstat (LexState *ls, int line) { /* funcstat -> FUNCTION funcname body */ int needself; expdesc v, b; luaX_next(ls); /* skip FUNCTION */ needself = funcname(ls, &v); body(ls, &b, needself, line); luaK_storevar(ls->fs, &v, &b); luaK_fixline(ls->fs, line); /* definition `happens' in the first line */ } static void exprstat (LexState *ls) { /* stat -> func | assignment */ FuncState *fs = ls->fs; struct LHS_assign v; primaryexp(ls, &v.v); if (v.v.k == VCALL) /* stat -> func */ SETARG_C(getcode(fs, &v.v), 1); /* call statement uses no results */ else { /* stat -> assignment */ v.prev = NULL; assignment(ls, &v, 1); } } static void retstat (LexState *ls) { /* stat -> RETURN explist */ FuncState *fs = ls->fs; expdesc e; int first, nret; /* registers with returned values */ luaX_next(ls); /* skip RETURN */ if (block_follow(ls->t.token) || ls->t.token == ';') first = nret = 0; /* return no values */ else { nret = explist1(ls, &e); /* optional return values */ if (hasmultret(e.k)) { luaK_setmultret(fs, &e); if (e.k == VCALL && nret == 1) { /* tail call? */ SET_OPCODE(getcode(fs,&e), OP_TAILCALL); lua_assert(GETARG_A(getcode(fs,&e)) == fs->nactvar); } first = fs->nactvar; nret = LUA_MULTRET; /* return all values */ } else { if (nret == 1) /* only one single value? */ first = luaK_exp2anyreg(fs, &e); else { luaK_exp2nextreg(fs, &e); /* values must go to the `stack' */ first = fs->nactvar; /* return all `active' values */ lua_assert(nret == fs->freereg - first); } } } luaK_ret(fs, first, nret); } static int statement (LexState *ls) { int line = ls->linenumber; /* may be needed for error messages */ switch (ls->t.token) { case TK_IF: { /* stat -> ifstat */ ifstat(ls, line); return 0; } case TK_WHILE: { /* stat -> whilestat */ whilestat(ls, line); return 0; } case TK_DO: { /* stat -> DO block END */ luaX_next(ls); /* skip DO */ block(ls); check_match(ls, TK_END, TK_DO, line); return 0; } case TK_FOR: { /* stat -> forstat */ forstat(ls, line); return 0; } case TK_REPEAT: { /* stat -> repeatstat */ repeatstat(ls, line); return 0; } case TK_FUNCTION: { funcstat(ls, line); /* stat -> funcstat */ return 0; } case TK_LOCAL: { /* stat -> localstat */ luaX_next(ls); /* skip LOCAL */ if (testnext(ls, TK_FUNCTION)) /* local function? */ localfunc(ls); else localstat(ls); return 0; } case TK_RETURN: { /* stat -> retstat */ retstat(ls); return 1; /* must be last statement */ } case TK_BREAK: { /* stat -> breakstat */ luaX_next(ls); /* skip BREAK */ breakstat(ls); return 1; /* must be last statement */ } default: { exprstat(ls); return 0; /* to avoid warnings */ } } } static void chunk (LexState *ls) { /* chunk -> { stat [`;'] } */ int islast = 0; enterlevel(ls); while (!islast && !block_follow(ls->t.token)) { islast = statement(ls); testnext(ls, ';'); lua_assert(ls->fs->f->maxstacksize >= ls->fs->freereg && ls->fs->freereg >= ls->fs->nactvar); ls->fs->freereg = ls->fs->nactvar; /* free registers */ } leavelevel(ls); } /* }====================================================================== */ redis-2.6.16/deps/lua/src/lparser.h000066400000000000000000000043251220734223100170400ustar00rootroot00000000000000/* ** $Id: lparser.h,v 1.57.1.1 2007/12/27 13:02:25 roberto Exp $ ** Lua Parser ** See Copyright Notice in lua.h */ #ifndef lparser_h #define lparser_h #include "llimits.h" #include "lobject.h" #include "lzio.h" /* ** Expression descriptor */ typedef enum { VVOID, /* no value */ VNIL, VTRUE, VFALSE, VK, /* info = index of constant in `k' */ VKNUM, /* nval = numerical value */ VLOCAL, /* info = local register */ VUPVAL, /* info = index of upvalue in `upvalues' */ VGLOBAL, /* info = index of table; aux = index of global name in `k' */ VINDEXED, /* info = table register; aux = index register (or `k') */ VJMP, /* info = instruction pc */ VRELOCABLE, /* info = instruction pc */ VNONRELOC, /* info = result register */ VCALL, /* info = instruction pc */ VVARARG /* info = instruction pc */ } expkind; typedef struct expdesc { expkind k; union { struct { int info, aux; } s; lua_Number nval; } u; int t; /* patch list of `exit when true' */ int f; /* patch list of `exit when false' */ } expdesc; typedef struct upvaldesc { lu_byte k; lu_byte info; } upvaldesc; struct BlockCnt; /* defined in lparser.c */ /* state needed to generate code for a given function */ typedef struct FuncState { Proto *f; /* current function header */ Table *h; /* table to find (and reuse) elements in `k' */ struct FuncState *prev; /* enclosing function */ struct LexState *ls; /* lexical state */ struct lua_State *L; /* copy of the Lua state */ struct BlockCnt *bl; /* chain of current blocks */ int pc; /* next position to code (equivalent to `ncode') */ int lasttarget; /* `pc' of last `jump target' */ int jpc; /* list of pending jumps to `pc' */ int freereg; /* first free register */ int nk; /* number of elements in `k' */ int np; /* number of elements in `p' */ short nlocvars; /* number of elements in `locvars' */ lu_byte nactvar; /* number of active local variables */ upvaldesc upvalues[LUAI_MAXUPVALUES]; /* upvalues */ unsigned short actvar[LUAI_MAXVARS]; /* declared-variable stack */ } FuncState; LUAI_FUNC Proto *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff, const char *name); #endif redis-2.6.16/deps/lua/src/lstate.c000066400000000000000000000130521220734223100166540ustar00rootroot00000000000000/* ** $Id: lstate.c,v 2.36.1.2 2008/01/03 15:20:39 roberto Exp $ ** Global State ** See Copyright Notice in lua.h */ #include #define lstate_c #define LUA_CORE #include "lua.h" #include "ldebug.h" #include "ldo.h" #include "lfunc.h" #include "lgc.h" #include "llex.h" #include "lmem.h" #include "lstate.h" #include "lstring.h" #include "ltable.h" #include "ltm.h" #define state_size(x) (sizeof(x) + LUAI_EXTRASPACE) #define fromstate(l) (cast(lu_byte *, (l)) - LUAI_EXTRASPACE) #define tostate(l) (cast(lua_State *, cast(lu_byte *, l) + LUAI_EXTRASPACE)) /* ** Main thread combines a thread state and the global state */ typedef struct LG { lua_State l; global_State g; } LG; static void stack_init (lua_State *L1, lua_State *L) { /* initialize CallInfo array */ L1->base_ci = luaM_newvector(L, BASIC_CI_SIZE, CallInfo); L1->ci = L1->base_ci; L1->size_ci = BASIC_CI_SIZE; L1->end_ci = L1->base_ci + L1->size_ci - 1; /* initialize stack array */ L1->stack = luaM_newvector(L, BASIC_STACK_SIZE + EXTRA_STACK, TValue); L1->stacksize = BASIC_STACK_SIZE + EXTRA_STACK; L1->top = L1->stack; L1->stack_last = L1->stack+(L1->stacksize - EXTRA_STACK)-1; /* initialize first ci */ L1->ci->func = L1->top; setnilvalue(L1->top++); /* `function' entry for this `ci' */ L1->base = L1->ci->base = L1->top; L1->ci->top = L1->top + LUA_MINSTACK; } static void freestack (lua_State *L, lua_State *L1) { luaM_freearray(L, L1->base_ci, L1->size_ci, CallInfo); luaM_freearray(L, L1->stack, L1->stacksize, TValue); } /* ** open parts that may cause memory-allocation errors */ static void f_luaopen (lua_State *L, void *ud) { global_State *g = G(L); UNUSED(ud); stack_init(L, L); /* init stack */ sethvalue(L, gt(L), luaH_new(L, 0, 2)); /* table of globals */ sethvalue(L, registry(L), luaH_new(L, 0, 2)); /* registry */ luaS_resize(L, MINSTRTABSIZE); /* initial size of string table */ luaT_init(L); luaX_init(L); luaS_fix(luaS_newliteral(L, MEMERRMSG)); g->GCthreshold = 4*g->totalbytes; } static void preinit_state (lua_State *L, global_State *g) { G(L) = g; L->stack = NULL; L->stacksize = 0; L->errorJmp = NULL; L->hook = NULL; L->hookmask = 0; L->basehookcount = 0; L->allowhook = 1; resethookcount(L); L->openupval = NULL; L->size_ci = 0; L->nCcalls = L->baseCcalls = 0; L->status = 0; L->base_ci = L->ci = NULL; L->savedpc = NULL; L->errfunc = 0; setnilvalue(gt(L)); } static void close_state (lua_State *L) { global_State *g = G(L); luaF_close(L, L->stack); /* close all upvalues for this thread */ luaC_freeall(L); /* collect all objects */ lua_assert(g->rootgc == obj2gco(L)); lua_assert(g->strt.nuse == 0); luaM_freearray(L, G(L)->strt.hash, G(L)->strt.size, TString *); luaZ_freebuffer(L, &g->buff); freestack(L, L); lua_assert(g->totalbytes == sizeof(LG)); (*g->frealloc)(g->ud, fromstate(L), state_size(LG), 0); } lua_State *luaE_newthread (lua_State *L) { lua_State *L1 = tostate(luaM_malloc(L, state_size(lua_State))); luaC_link(L, obj2gco(L1), LUA_TTHREAD); preinit_state(L1, G(L)); stack_init(L1, L); /* init stack */ setobj2n(L, gt(L1), gt(L)); /* share table of globals */ L1->hookmask = L->hookmask; L1->basehookcount = L->basehookcount; L1->hook = L->hook; resethookcount(L1); lua_assert(iswhite(obj2gco(L1))); return L1; } void luaE_freethread (lua_State *L, lua_State *L1) { luaF_close(L1, L1->stack); /* close all upvalues for this thread */ lua_assert(L1->openupval == NULL); luai_userstatefree(L1); freestack(L, L1); luaM_freemem(L, fromstate(L1), state_size(lua_State)); } LUA_API lua_State *lua_newstate (lua_Alloc f, void *ud) { int i; lua_State *L; global_State *g; void *l = (*f)(ud, NULL, 0, state_size(LG)); if (l == NULL) return NULL; L = tostate(l); g = &((LG *)L)->g; L->next = NULL; L->tt = LUA_TTHREAD; g->currentwhite = bit2mask(WHITE0BIT, FIXEDBIT); L->marked = luaC_white(g); set2bits(L->marked, FIXEDBIT, SFIXEDBIT); preinit_state(L, g); g->frealloc = f; g->ud = ud; g->mainthread = L; g->uvhead.u.l.prev = &g->uvhead; g->uvhead.u.l.next = &g->uvhead; g->GCthreshold = 0; /* mark it as unfinished state */ g->strt.size = 0; g->strt.nuse = 0; g->strt.hash = NULL; setnilvalue(registry(L)); luaZ_initbuffer(L, &g->buff); g->panic = NULL; g->gcstate = GCSpause; g->rootgc = obj2gco(L); g->sweepstrgc = 0; g->sweepgc = &g->rootgc; g->gray = NULL; g->grayagain = NULL; g->weak = NULL; g->tmudata = NULL; g->totalbytes = sizeof(LG); g->gcpause = LUAI_GCPAUSE; g->gcstepmul = LUAI_GCMUL; g->gcdept = 0; for (i=0; imt[i] = NULL; if (luaD_rawrunprotected(L, f_luaopen, NULL) != 0) { /* memory allocation error: free partial state */ close_state(L); L = NULL; } else luai_userstateopen(L); return L; } static void callallgcTM (lua_State *L, void *ud) { UNUSED(ud); luaC_callGCTM(L); /* call GC metamethods for all udata */ } LUA_API void lua_close (lua_State *L) { L = G(L)->mainthread; /* only the main thread can be closed */ lua_lock(L); luaF_close(L, L->stack); /* close all upvalues for this thread */ luaC_separateudata(L, 1); /* separate udata that have GC metamethods */ L->errfunc = 0; /* no error function during GC metamethods */ do { /* repeat until no more errors */ L->ci = L->base_ci; L->base = L->top = L->ci->base; L->nCcalls = L->baseCcalls = 0; } while (luaD_rawrunprotected(L, callallgcTM, NULL) != 0); lua_assert(G(L)->tmudata == NULL); luai_userstateclose(L); close_state(L); } redis-2.6.16/deps/lua/src/lstate.h000066400000000000000000000116231220734223100166630ustar00rootroot00000000000000/* ** $Id: lstate.h,v 2.24.1.2 2008/01/03 15:20:39 roberto Exp $ ** Global State ** See Copyright Notice in lua.h */ #ifndef lstate_h #define lstate_h #include "lua.h" #include "lobject.h" #include "ltm.h" #include "lzio.h" struct lua_longjmp; /* defined in ldo.c */ /* table of globals */ #define gt(L) (&L->l_gt) /* registry */ #define registry(L) (&G(L)->l_registry) /* extra stack space to handle TM calls and some other extras */ #define EXTRA_STACK 5 #define BASIC_CI_SIZE 8 #define BASIC_STACK_SIZE (2*LUA_MINSTACK) typedef struct stringtable { GCObject **hash; lu_int32 nuse; /* number of elements */ int size; } stringtable; /* ** informations about a call */ typedef struct CallInfo { StkId base; /* base for this function */ StkId func; /* function index in the stack */ StkId top; /* top for this function */ const Instruction *savedpc; int nresults; /* expected number of results from this function */ int tailcalls; /* number of tail calls lost under this entry */ } CallInfo; #define curr_func(L) (clvalue(L->ci->func)) #define ci_func(ci) (clvalue((ci)->func)) #define f_isLua(ci) (!ci_func(ci)->c.isC) #define isLua(ci) (ttisfunction((ci)->func) && f_isLua(ci)) /* ** `global state', shared by all threads of this state */ typedef struct global_State { stringtable strt; /* hash table for strings */ lua_Alloc frealloc; /* function to reallocate memory */ void *ud; /* auxiliary data to `frealloc' */ lu_byte currentwhite; lu_byte gcstate; /* state of garbage collector */ int sweepstrgc; /* position of sweep in `strt' */ GCObject *rootgc; /* list of all collectable objects */ GCObject **sweepgc; /* position of sweep in `rootgc' */ GCObject *gray; /* list of gray objects */ GCObject *grayagain; /* list of objects to be traversed atomically */ GCObject *weak; /* list of weak tables (to be cleared) */ GCObject *tmudata; /* last element of list of userdata to be GC */ Mbuffer buff; /* temporary buffer for string concatentation */ lu_mem GCthreshold; lu_mem totalbytes; /* number of bytes currently allocated */ lu_mem estimate; /* an estimate of number of bytes actually in use */ lu_mem gcdept; /* how much GC is `behind schedule' */ int gcpause; /* size of pause between successive GCs */ int gcstepmul; /* GC `granularity' */ lua_CFunction panic; /* to be called in unprotected errors */ TValue l_registry; struct lua_State *mainthread; UpVal uvhead; /* head of double-linked list of all open upvalues */ struct Table *mt[NUM_TAGS]; /* metatables for basic types */ TString *tmname[TM_N]; /* array with tag-method names */ } global_State; /* ** `per thread' state */ struct lua_State { CommonHeader; lu_byte status; StkId top; /* first free slot in the stack */ StkId base; /* base of current function */ global_State *l_G; CallInfo *ci; /* call info for current function */ const Instruction *savedpc; /* `savedpc' of current function */ StkId stack_last; /* last free slot in the stack */ StkId stack; /* stack base */ CallInfo *end_ci; /* points after end of ci array*/ CallInfo *base_ci; /* array of CallInfo's */ int stacksize; int size_ci; /* size of array `base_ci' */ unsigned short nCcalls; /* number of nested C calls */ unsigned short baseCcalls; /* nested C calls when resuming coroutine */ lu_byte hookmask; lu_byte allowhook; int basehookcount; int hookcount; lua_Hook hook; TValue l_gt; /* table of globals */ TValue env; /* temporary place for environments */ GCObject *openupval; /* list of open upvalues in this stack */ GCObject *gclist; struct lua_longjmp *errorJmp; /* current error recover point */ ptrdiff_t errfunc; /* current error handling function (stack index) */ }; #define G(L) (L->l_G) /* ** Union of all collectable objects */ union GCObject { GCheader gch; union TString ts; union Udata u; union Closure cl; struct Table h; struct Proto p; struct UpVal uv; struct lua_State th; /* thread */ }; /* macros to convert a GCObject into a specific value */ #define rawgco2ts(o) check_exp((o)->gch.tt == LUA_TSTRING, &((o)->ts)) #define gco2ts(o) (&rawgco2ts(o)->tsv) #define rawgco2u(o) check_exp((o)->gch.tt == LUA_TUSERDATA, &((o)->u)) #define gco2u(o) (&rawgco2u(o)->uv) #define gco2cl(o) check_exp((o)->gch.tt == LUA_TFUNCTION, &((o)->cl)) #define gco2h(o) check_exp((o)->gch.tt == LUA_TTABLE, &((o)->h)) #define gco2p(o) check_exp((o)->gch.tt == LUA_TPROTO, &((o)->p)) #define gco2uv(o) check_exp((o)->gch.tt == LUA_TUPVAL, &((o)->uv)) #define ngcotouv(o) \ check_exp((o) == NULL || (o)->gch.tt == LUA_TUPVAL, &((o)->uv)) #define gco2th(o) check_exp((o)->gch.tt == LUA_TTHREAD, &((o)->th)) /* macro to convert any Lua object into a GCObject */ #define obj2gco(v) (cast(GCObject *, (v))) LUAI_FUNC lua_State *luaE_newthread (lua_State *L); LUAI_FUNC void luaE_freethread (lua_State *L, lua_State *L1); #endif redis-2.6.16/deps/lua/src/lstring.c000066400000000000000000000060461220734223100170470ustar00rootroot00000000000000/* ** $Id: lstring.c,v 2.8.1.1 2007/12/27 13:02:25 roberto Exp $ ** String table (keeps all strings handled by Lua) ** See Copyright Notice in lua.h */ #include #define lstring_c #define LUA_CORE #include "lua.h" #include "lmem.h" #include "lobject.h" #include "lstate.h" #include "lstring.h" void luaS_resize (lua_State *L, int newsize) { GCObject **newhash; stringtable *tb; int i; if (G(L)->gcstate == GCSsweepstring) return; /* cannot resize during GC traverse */ newhash = luaM_newvector(L, newsize, GCObject *); tb = &G(L)->strt; for (i=0; isize; i++) { GCObject *p = tb->hash[i]; while (p) { /* for each node in the list */ GCObject *next = p->gch.next; /* save next */ unsigned int h = gco2ts(p)->hash; int h1 = lmod(h, newsize); /* new position */ lua_assert(cast_int(h%newsize) == lmod(h, newsize)); p->gch.next = newhash[h1]; /* chain it */ newhash[h1] = p; p = next; } } luaM_freearray(L, tb->hash, tb->size, TString *); tb->size = newsize; tb->hash = newhash; } static TString *newlstr (lua_State *L, const char *str, size_t l, unsigned int h) { TString *ts; stringtable *tb; if (l+1 > (MAX_SIZET - sizeof(TString))/sizeof(char)) luaM_toobig(L); ts = cast(TString *, luaM_malloc(L, (l+1)*sizeof(char)+sizeof(TString))); ts->tsv.len = l; ts->tsv.hash = h; ts->tsv.marked = luaC_white(G(L)); ts->tsv.tt = LUA_TSTRING; ts->tsv.reserved = 0; memcpy(ts+1, str, l*sizeof(char)); ((char *)(ts+1))[l] = '\0'; /* ending 0 */ tb = &G(L)->strt; h = lmod(h, tb->size); ts->tsv.next = tb->hash[h]; /* chain new entry */ tb->hash[h] = obj2gco(ts); tb->nuse++; if (tb->nuse > cast(lu_int32, tb->size) && tb->size <= MAX_INT/2) luaS_resize(L, tb->size*2); /* too crowded */ return ts; } TString *luaS_newlstr (lua_State *L, const char *str, size_t l) { GCObject *o; unsigned int h = cast(unsigned int, l); /* seed */ size_t step = (l>>5)+1; /* if string is too long, don't hash all its chars */ size_t l1; for (l1=l; l1>=step; l1-=step) /* compute hash */ h = h ^ ((h<<5)+(h>>2)+cast(unsigned char, str[l1-1])); for (o = G(L)->strt.hash[lmod(h, G(L)->strt.size)]; o != NULL; o = o->gch.next) { TString *ts = rawgco2ts(o); if (ts->tsv.len == l && (memcmp(str, getstr(ts), l) == 0)) { /* string may be dead */ if (isdead(G(L), o)) changewhite(o); return ts; } } return newlstr(L, str, l, h); /* not found */ } Udata *luaS_newudata (lua_State *L, size_t s, Table *e) { Udata *u; if (s > MAX_SIZET - sizeof(Udata)) luaM_toobig(L); u = cast(Udata *, luaM_malloc(L, s + sizeof(Udata))); u->uv.marked = luaC_white(G(L)); /* is not finalized */ u->uv.tt = LUA_TUSERDATA; u->uv.len = s; u->uv.metatable = NULL; u->uv.env = e; /* chain it on udata list (after main thread) */ u->uv.next = G(L)->mainthread->next; G(L)->mainthread->next = obj2gco(u); return u; } redis-2.6.16/deps/lua/src/lstring.h000066400000000000000000000014561220734223100170540ustar00rootroot00000000000000/* ** $Id: lstring.h,v 1.43.1.1 2007/12/27 13:02:25 roberto Exp $ ** String table (keep all strings handled by Lua) ** See Copyright Notice in lua.h */ #ifndef lstring_h #define lstring_h #include "lgc.h" #include "lobject.h" #include "lstate.h" #define sizestring(s) (sizeof(union TString)+((s)->len+1)*sizeof(char)) #define sizeudata(u) (sizeof(union Udata)+(u)->len) #define luaS_new(L, s) (luaS_newlstr(L, s, strlen(s))) #define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \ (sizeof(s)/sizeof(char))-1)) #define luaS_fix(s) l_setbit((s)->tsv.marked, FIXEDBIT) LUAI_FUNC void luaS_resize (lua_State *L, int newsize); LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, Table *e); LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l); #endif redis-2.6.16/deps/lua/src/lstrlib.c000066400000000000000000000560111220734223100170350ustar00rootroot00000000000000/* ** $Id: lstrlib.c,v 1.132.1.5 2010/05/14 15:34:19 roberto Exp $ ** Standard library for string operations and pattern-matching ** See Copyright Notice in lua.h */ #include #include #include #include #include #define lstrlib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #include "lualib.h" /* macro to `unsign' a character */ #define uchar(c) ((unsigned char)(c)) static int str_len (lua_State *L) { size_t l; luaL_checklstring(L, 1, &l); lua_pushinteger(L, l); return 1; } static ptrdiff_t posrelat (ptrdiff_t pos, size_t len) { /* relative string position: negative means back from end */ if (pos < 0) pos += (ptrdiff_t)len + 1; return (pos >= 0) ? pos : 0; } static int str_sub (lua_State *L) { size_t l; const char *s = luaL_checklstring(L, 1, &l); ptrdiff_t start = posrelat(luaL_checkinteger(L, 2), l); ptrdiff_t end = posrelat(luaL_optinteger(L, 3, -1), l); if (start < 1) start = 1; if (end > (ptrdiff_t)l) end = (ptrdiff_t)l; if (start <= end) lua_pushlstring(L, s+start-1, end-start+1); else lua_pushliteral(L, ""); return 1; } static int str_reverse (lua_State *L) { size_t l; luaL_Buffer b; const char *s = luaL_checklstring(L, 1, &l); luaL_buffinit(L, &b); while (l--) luaL_addchar(&b, s[l]); luaL_pushresult(&b); return 1; } static int str_lower (lua_State *L) { size_t l; size_t i; luaL_Buffer b; const char *s = luaL_checklstring(L, 1, &l); luaL_buffinit(L, &b); for (i=0; i 0) luaL_addlstring(&b, s, l); luaL_pushresult(&b); return 1; } static int str_byte (lua_State *L) { size_t l; const char *s = luaL_checklstring(L, 1, &l); ptrdiff_t posi = posrelat(luaL_optinteger(L, 2, 1), l); ptrdiff_t pose = posrelat(luaL_optinteger(L, 3, posi), l); int n, i; if (posi <= 0) posi = 1; if ((size_t)pose > l) pose = l; if (posi > pose) return 0; /* empty interval; return no values */ n = (int)(pose - posi + 1); if (posi + n <= pose) /* overflow? */ luaL_error(L, "string slice too long"); luaL_checkstack(L, n, "string slice too long"); for (i=0; i= ms->level || ms->capture[l].len == CAP_UNFINISHED) return luaL_error(ms->L, "invalid capture index"); return l; } static int capture_to_close (MatchState *ms) { int level = ms->level; for (level--; level>=0; level--) if (ms->capture[level].len == CAP_UNFINISHED) return level; return luaL_error(ms->L, "invalid pattern capture"); } static const char *classend (MatchState *ms, const char *p) { switch (*p++) { case L_ESC: { if (*p == '\0') luaL_error(ms->L, "malformed pattern (ends with " LUA_QL("%%") ")"); return p+1; } case '[': { if (*p == '^') p++; do { /* look for a `]' */ if (*p == '\0') luaL_error(ms->L, "malformed pattern (missing " LUA_QL("]") ")"); if (*(p++) == L_ESC && *p != '\0') p++; /* skip escapes (e.g. `%]') */ } while (*p != ']'); return p+1; } default: { return p; } } } static int match_class (int c, int cl) { int res; switch (tolower(cl)) { case 'a' : res = isalpha(c); break; case 'c' : res = iscntrl(c); break; case 'd' : res = isdigit(c); break; case 'l' : res = islower(c); break; case 'p' : res = ispunct(c); break; case 's' : res = isspace(c); break; case 'u' : res = isupper(c); break; case 'w' : res = isalnum(c); break; case 'x' : res = isxdigit(c); break; case 'z' : res = (c == 0); break; default: return (cl == c); } return (islower(cl) ? res : !res); } static int matchbracketclass (int c, const char *p, const char *ec) { int sig = 1; if (*(p+1) == '^') { sig = 0; p++; /* skip the `^' */ } while (++p < ec) { if (*p == L_ESC) { p++; if (match_class(c, uchar(*p))) return sig; } else if ((*(p+1) == '-') && (p+2 < ec)) { p+=2; if (uchar(*(p-2)) <= c && c <= uchar(*p)) return sig; } else if (uchar(*p) == c) return sig; } return !sig; } static int singlematch (int c, const char *p, const char *ep) { switch (*p) { case '.': return 1; /* matches any char */ case L_ESC: return match_class(c, uchar(*(p+1))); case '[': return matchbracketclass(c, p, ep-1); default: return (uchar(*p) == c); } } static const char *match (MatchState *ms, const char *s, const char *p); static const char *matchbalance (MatchState *ms, const char *s, const char *p) { if (*p == 0 || *(p+1) == 0) luaL_error(ms->L, "unbalanced pattern"); if (*s != *p) return NULL; else { int b = *p; int e = *(p+1); int cont = 1; while (++s < ms->src_end) { if (*s == e) { if (--cont == 0) return s+1; } else if (*s == b) cont++; } } return NULL; /* string ends out of balance */ } static const char *max_expand (MatchState *ms, const char *s, const char *p, const char *ep) { ptrdiff_t i = 0; /* counts maximum expand for item */ while ((s+i)src_end && singlematch(uchar(*(s+i)), p, ep)) i++; /* keeps trying to match with the maximum repetitions */ while (i>=0) { const char *res = match(ms, (s+i), ep+1); if (res) return res; i--; /* else didn't match; reduce 1 repetition to try again */ } return NULL; } static const char *min_expand (MatchState *ms, const char *s, const char *p, const char *ep) { for (;;) { const char *res = match(ms, s, ep+1); if (res != NULL) return res; else if (ssrc_end && singlematch(uchar(*s), p, ep)) s++; /* try with one more repetition */ else return NULL; } } static const char *start_capture (MatchState *ms, const char *s, const char *p, int what) { const char *res; int level = ms->level; if (level >= LUA_MAXCAPTURES) luaL_error(ms->L, "too many captures"); ms->capture[level].init = s; ms->capture[level].len = what; ms->level = level+1; if ((res=match(ms, s, p)) == NULL) /* match failed? */ ms->level--; /* undo capture */ return res; } static const char *end_capture (MatchState *ms, const char *s, const char *p) { int l = capture_to_close(ms); const char *res; ms->capture[l].len = s - ms->capture[l].init; /* close capture */ if ((res = match(ms, s, p)) == NULL) /* match failed? */ ms->capture[l].len = CAP_UNFINISHED; /* undo capture */ return res; } static const char *match_capture (MatchState *ms, const char *s, int l) { size_t len; l = check_capture(ms, l); len = ms->capture[l].len; if ((size_t)(ms->src_end-s) >= len && memcmp(ms->capture[l].init, s, len) == 0) return s+len; else return NULL; } static const char *match (MatchState *ms, const char *s, const char *p) { init: /* using goto's to optimize tail recursion */ switch (*p) { case '(': { /* start capture */ if (*(p+1) == ')') /* position capture? */ return start_capture(ms, s, p+2, CAP_POSITION); else return start_capture(ms, s, p+1, CAP_UNFINISHED); } case ')': { /* end capture */ return end_capture(ms, s, p+1); } case L_ESC: { switch (*(p+1)) { case 'b': { /* balanced string? */ s = matchbalance(ms, s, p+2); if (s == NULL) return NULL; p+=4; goto init; /* else return match(ms, s, p+4); */ } case 'f': { /* frontier? */ const char *ep; char previous; p += 2; if (*p != '[') luaL_error(ms->L, "missing " LUA_QL("[") " after " LUA_QL("%%f") " in pattern"); ep = classend(ms, p); /* points to what is next */ previous = (s == ms->src_init) ? '\0' : *(s-1); if (matchbracketclass(uchar(previous), p, ep-1) || !matchbracketclass(uchar(*s), p, ep-1)) return NULL; p=ep; goto init; /* else return match(ms, s, ep); */ } default: { if (isdigit(uchar(*(p+1)))) { /* capture results (%0-%9)? */ s = match_capture(ms, s, uchar(*(p+1))); if (s == NULL) return NULL; p+=2; goto init; /* else return match(ms, s, p+2) */ } goto dflt; /* case default */ } } } case '\0': { /* end of pattern */ return s; /* match succeeded */ } case '$': { if (*(p+1) == '\0') /* is the `$' the last char in pattern? */ return (s == ms->src_end) ? s : NULL; /* check end of string */ else goto dflt; } default: dflt: { /* it is a pattern item */ const char *ep = classend(ms, p); /* points to what is next */ int m = ssrc_end && singlematch(uchar(*s), p, ep); switch (*ep) { case '?': { /* optional */ const char *res; if (m && ((res=match(ms, s+1, ep+1)) != NULL)) return res; p=ep+1; goto init; /* else return match(ms, s, ep+1); */ } case '*': { /* 0 or more repetitions */ return max_expand(ms, s, p, ep); } case '+': { /* 1 or more repetitions */ return (m ? max_expand(ms, s+1, p, ep) : NULL); } case '-': { /* 0 or more repetitions (minimum) */ return min_expand(ms, s, p, ep); } default: { if (!m) return NULL; s++; p=ep; goto init; /* else return match(ms, s+1, ep); */ } } } } } static const char *lmemfind (const char *s1, size_t l1, const char *s2, size_t l2) { if (l2 == 0) return s1; /* empty strings are everywhere */ else if (l2 > l1) return NULL; /* avoids a negative `l1' */ else { const char *init; /* to search for a `*s2' inside `s1' */ l2--; /* 1st char will be checked by `memchr' */ l1 = l1-l2; /* `s2' cannot be found after that */ while (l1 > 0 && (init = (const char *)memchr(s1, *s2, l1)) != NULL) { init++; /* 1st char is already checked */ if (memcmp(init, s2+1, l2) == 0) return init-1; else { /* correct `l1' and `s1' to try again */ l1 -= init-s1; s1 = init; } } return NULL; /* not found */ } } static void push_onecapture (MatchState *ms, int i, const char *s, const char *e) { if (i >= ms->level) { if (i == 0) /* ms->level == 0, too */ lua_pushlstring(ms->L, s, e - s); /* add whole match */ else luaL_error(ms->L, "invalid capture index"); } else { ptrdiff_t l = ms->capture[i].len; if (l == CAP_UNFINISHED) luaL_error(ms->L, "unfinished capture"); if (l == CAP_POSITION) lua_pushinteger(ms->L, ms->capture[i].init - ms->src_init + 1); else lua_pushlstring(ms->L, ms->capture[i].init, l); } } static int push_captures (MatchState *ms, const char *s, const char *e) { int i; int nlevels = (ms->level == 0 && s) ? 1 : ms->level; luaL_checkstack(ms->L, nlevels, "too many captures"); for (i = 0; i < nlevels; i++) push_onecapture(ms, i, s, e); return nlevels; /* number of strings pushed */ } static int str_find_aux (lua_State *L, int find) { size_t l1, l2; const char *s = luaL_checklstring(L, 1, &l1); const char *p = luaL_checklstring(L, 2, &l2); ptrdiff_t init = posrelat(luaL_optinteger(L, 3, 1), l1) - 1; if (init < 0) init = 0; else if ((size_t)(init) > l1) init = (ptrdiff_t)l1; if (find && (lua_toboolean(L, 4) || /* explicit request? */ strpbrk(p, SPECIALS) == NULL)) { /* or no special characters? */ /* do a plain search */ const char *s2 = lmemfind(s+init, l1-init, p, l2); if (s2) { lua_pushinteger(L, s2-s+1); lua_pushinteger(L, s2-s+l2); return 2; } } else { MatchState ms; int anchor = (*p == '^') ? (p++, 1) : 0; const char *s1=s+init; ms.L = L; ms.src_init = s; ms.src_end = s+l1; do { const char *res; ms.level = 0; if ((res=match(&ms, s1, p)) != NULL) { if (find) { lua_pushinteger(L, s1-s+1); /* start */ lua_pushinteger(L, res-s); /* end */ return push_captures(&ms, NULL, 0) + 2; } else return push_captures(&ms, s1, res); } } while (s1++ < ms.src_end && !anchor); } lua_pushnil(L); /* not found */ return 1; } static int str_find (lua_State *L) { return str_find_aux(L, 1); } static int str_match (lua_State *L) { return str_find_aux(L, 0); } static int gmatch_aux (lua_State *L) { MatchState ms; size_t ls; const char *s = lua_tolstring(L, lua_upvalueindex(1), &ls); const char *p = lua_tostring(L, lua_upvalueindex(2)); const char *src; ms.L = L; ms.src_init = s; ms.src_end = s+ls; for (src = s + (size_t)lua_tointeger(L, lua_upvalueindex(3)); src <= ms.src_end; src++) { const char *e; ms.level = 0; if ((e = match(&ms, src, p)) != NULL) { lua_Integer newstart = e-s; if (e == src) newstart++; /* empty match? go at least one position */ lua_pushinteger(L, newstart); lua_replace(L, lua_upvalueindex(3)); return push_captures(&ms, src, e); } } return 0; /* not found */ } static int gmatch (lua_State *L) { luaL_checkstring(L, 1); luaL_checkstring(L, 2); lua_settop(L, 2); lua_pushinteger(L, 0); lua_pushcclosure(L, gmatch_aux, 3); return 1; } static int gfind_nodef (lua_State *L) { return luaL_error(L, LUA_QL("string.gfind") " was renamed to " LUA_QL("string.gmatch")); } static void add_s (MatchState *ms, luaL_Buffer *b, const char *s, const char *e) { size_t l, i; const char *news = lua_tolstring(ms->L, 3, &l); for (i = 0; i < l; i++) { if (news[i] != L_ESC) luaL_addchar(b, news[i]); else { i++; /* skip ESC */ if (!isdigit(uchar(news[i]))) luaL_addchar(b, news[i]); else if (news[i] == '0') luaL_addlstring(b, s, e - s); else { push_onecapture(ms, news[i] - '1', s, e); luaL_addvalue(b); /* add capture to accumulated result */ } } } } static void add_value (MatchState *ms, luaL_Buffer *b, const char *s, const char *e) { lua_State *L = ms->L; switch (lua_type(L, 3)) { case LUA_TNUMBER: case LUA_TSTRING: { add_s(ms, b, s, e); return; } case LUA_TFUNCTION: { int n; lua_pushvalue(L, 3); n = push_captures(ms, s, e); lua_call(L, n, 1); break; } case LUA_TTABLE: { push_onecapture(ms, 0, s, e); lua_gettable(L, 3); break; } } if (!lua_toboolean(L, -1)) { /* nil or false? */ lua_pop(L, 1); lua_pushlstring(L, s, e - s); /* keep original text */ } else if (!lua_isstring(L, -1)) luaL_error(L, "invalid replacement value (a %s)", luaL_typename(L, -1)); luaL_addvalue(b); /* add result to accumulator */ } static int str_gsub (lua_State *L) { size_t srcl; const char *src = luaL_checklstring(L, 1, &srcl); const char *p = luaL_checkstring(L, 2); int tr = lua_type(L, 3); int max_s = luaL_optint(L, 4, srcl+1); int anchor = (*p == '^') ? (p++, 1) : 0; int n = 0; MatchState ms; luaL_Buffer b; luaL_argcheck(L, tr == LUA_TNUMBER || tr == LUA_TSTRING || tr == LUA_TFUNCTION || tr == LUA_TTABLE, 3, "string/function/table expected"); luaL_buffinit(L, &b); ms.L = L; ms.src_init = src; ms.src_end = src+srcl; while (n < max_s) { const char *e; ms.level = 0; e = match(&ms, src, p); if (e) { n++; add_value(&ms, &b, src, e); } if (e && e>src) /* non empty match? */ src = e; /* skip it */ else if (src < ms.src_end) luaL_addchar(&b, *src++); else break; if (anchor) break; } luaL_addlstring(&b, src, ms.src_end-src); luaL_pushresult(&b); lua_pushinteger(L, n); /* number of substitutions */ return 2; } /* }====================================================== */ /* maximum size of each formatted item (> len(format('%99.99f', -1e308))) */ #define MAX_ITEM 512 /* valid flags in a format specification */ #define FLAGS "-+ #0" /* ** maximum size of each format specification (such as '%-099.99d') ** (+10 accounts for %99.99x plus margin of error) */ #define MAX_FORMAT (sizeof(FLAGS) + sizeof(LUA_INTFRMLEN) + 10) static void addquoted (lua_State *L, luaL_Buffer *b, int arg) { size_t l; const char *s = luaL_checklstring(L, arg, &l); luaL_addchar(b, '"'); while (l--) { switch (*s) { case '"': case '\\': case '\n': { luaL_addchar(b, '\\'); luaL_addchar(b, *s); break; } case '\r': { luaL_addlstring(b, "\\r", 2); break; } case '\0': { luaL_addlstring(b, "\\000", 4); break; } default: { luaL_addchar(b, *s); break; } } s++; } luaL_addchar(b, '"'); } static const char *scanformat (lua_State *L, const char *strfrmt, char *form) { const char *p = strfrmt; while (*p != '\0' && strchr(FLAGS, *p) != NULL) p++; /* skip flags */ if ((size_t)(p - strfrmt) >= sizeof(FLAGS)) luaL_error(L, "invalid format (repeated flags)"); if (isdigit(uchar(*p))) p++; /* skip width */ if (isdigit(uchar(*p))) p++; /* (2 digits at most) */ if (*p == '.') { p++; if (isdigit(uchar(*p))) p++; /* skip precision */ if (isdigit(uchar(*p))) p++; /* (2 digits at most) */ } if (isdigit(uchar(*p))) luaL_error(L, "invalid format (width or precision too long)"); *(form++) = '%'; strncpy(form, strfrmt, p - strfrmt + 1); form += p - strfrmt + 1; *form = '\0'; return p; } static void addintlen (char *form) { size_t l = strlen(form); char spec = form[l - 1]; strcpy(form + l - 1, LUA_INTFRMLEN); form[l + sizeof(LUA_INTFRMLEN) - 2] = spec; form[l + sizeof(LUA_INTFRMLEN) - 1] = '\0'; } static int str_format (lua_State *L) { int top = lua_gettop(L); int arg = 1; size_t sfl; const char *strfrmt = luaL_checklstring(L, arg, &sfl); const char *strfrmt_end = strfrmt+sfl; luaL_Buffer b; luaL_buffinit(L, &b); while (strfrmt < strfrmt_end) { if (*strfrmt != L_ESC) luaL_addchar(&b, *strfrmt++); else if (*++strfrmt == L_ESC) luaL_addchar(&b, *strfrmt++); /* %% */ else { /* format item */ char form[MAX_FORMAT]; /* to store the format (`%...') */ char buff[MAX_ITEM]; /* to store the formatted item */ if (++arg > top) luaL_argerror(L, arg, "no value"); strfrmt = scanformat(L, strfrmt, form); switch (*strfrmt++) { case 'c': { sprintf(buff, form, (int)luaL_checknumber(L, arg)); break; } case 'd': case 'i': { addintlen(form); sprintf(buff, form, (LUA_INTFRM_T)luaL_checknumber(L, arg)); break; } case 'o': case 'u': case 'x': case 'X': { addintlen(form); sprintf(buff, form, (unsigned LUA_INTFRM_T)luaL_checknumber(L, arg)); break; } case 'e': case 'E': case 'f': case 'g': case 'G': { sprintf(buff, form, (double)luaL_checknumber(L, arg)); break; } case 'q': { addquoted(L, &b, arg); continue; /* skip the 'addsize' at the end */ } case 's': { size_t l; const char *s = luaL_checklstring(L, arg, &l); if (!strchr(form, '.') && l >= 100) { /* no precision and string is too long to be formatted; keep original string */ lua_pushvalue(L, arg); luaL_addvalue(&b); continue; /* skip the `addsize' at the end */ } else { sprintf(buff, form, s); break; } } default: { /* also treat cases `pnLlh' */ return luaL_error(L, "invalid option " LUA_QL("%%%c") " to " LUA_QL("format"), *(strfrmt - 1)); } } luaL_addlstring(&b, buff, strlen(buff)); } } luaL_pushresult(&b); return 1; } static const luaL_Reg strlib[] = { {"byte", str_byte}, {"char", str_char}, {"dump", str_dump}, {"find", str_find}, {"format", str_format}, {"gfind", gfind_nodef}, {"gmatch", gmatch}, {"gsub", str_gsub}, {"len", str_len}, {"lower", str_lower}, {"match", str_match}, {"rep", str_rep}, {"reverse", str_reverse}, {"sub", str_sub}, {"upper", str_upper}, {NULL, NULL} }; static void createmetatable (lua_State *L) { lua_createtable(L, 0, 1); /* create metatable for strings */ lua_pushliteral(L, ""); /* dummy string */ lua_pushvalue(L, -2); lua_setmetatable(L, -2); /* set string metatable */ lua_pop(L, 1); /* pop dummy string */ lua_pushvalue(L, -2); /* string library... */ lua_setfield(L, -2, "__index"); /* ...is the __index metamethod */ lua_pop(L, 1); /* pop metatable */ } /* ** Open string library */ LUALIB_API int luaopen_string (lua_State *L) { luaL_register(L, LUA_STRLIBNAME, strlib); #if defined(LUA_COMPAT_GFIND) lua_getfield(L, -1, "gmatch"); lua_setfield(L, -2, "gfind"); #endif createmetatable(L); return 1; } redis-2.6.16/deps/lua/src/ltable.c000066400000000000000000000376071220734223100166370ustar00rootroot00000000000000/* ** $Id: ltable.c,v 2.32.1.2 2007/12/28 15:32:23 roberto Exp $ ** Lua tables (hash) ** See Copyright Notice in lua.h */ /* ** Implementation of tables (aka arrays, objects, or hash tables). ** Tables keep its elements in two parts: an array part and a hash part. ** Non-negative integer keys are all candidates to be kept in the array ** part. The actual size of the array is the largest `n' such that at ** least half the slots between 0 and n are in use. ** Hash uses a mix of chained scatter table with Brent's variation. ** A main invariant of these tables is that, if an element is not ** in its main position (i.e. the `original' position that its hash gives ** to it), then the colliding element is in its own main position. ** Hence even when the load factor reaches 100%, performance remains good. */ #include #include #define ltable_c #define LUA_CORE #include "lua.h" #include "ldebug.h" #include "ldo.h" #include "lgc.h" #include "lmem.h" #include "lobject.h" #include "lstate.h" #include "ltable.h" /* ** max size of array part is 2^MAXBITS */ #if LUAI_BITSINT > 26 #define MAXBITS 26 #else #define MAXBITS (LUAI_BITSINT-2) #endif #define MAXASIZE (1 << MAXBITS) #define hashpow2(t,n) (gnode(t, lmod((n), sizenode(t)))) #define hashstr(t,str) hashpow2(t, (str)->tsv.hash) #define hashboolean(t,p) hashpow2(t, p) /* ** for some types, it is better to avoid modulus by power of 2, as ** they tend to have many 2 factors. */ #define hashmod(t,n) (gnode(t, ((n) % ((sizenode(t)-1)|1)))) #define hashpointer(t,p) hashmod(t, IntPoint(p)) /* ** number of ints inside a lua_Number */ #define numints cast_int(sizeof(lua_Number)/sizeof(int)) #define dummynode (&dummynode_) static const Node dummynode_ = { {{NULL}, LUA_TNIL}, /* value */ {{{NULL}, LUA_TNIL, NULL}} /* key */ }; /* ** hash for lua_Numbers */ static Node *hashnum (const Table *t, lua_Number n) { unsigned int a[numints]; int i; if (luai_numeq(n, 0)) /* avoid problems with -0 */ return gnode(t, 0); memcpy(a, &n, sizeof(a)); for (i = 1; i < numints; i++) a[0] += a[i]; return hashmod(t, a[0]); } /* ** returns the `main' position of an element in a table (that is, the index ** of its hash value) */ static Node *mainposition (const Table *t, const TValue *key) { switch (ttype(key)) { case LUA_TNUMBER: return hashnum(t, nvalue(key)); case LUA_TSTRING: return hashstr(t, rawtsvalue(key)); case LUA_TBOOLEAN: return hashboolean(t, bvalue(key)); case LUA_TLIGHTUSERDATA: return hashpointer(t, pvalue(key)); default: return hashpointer(t, gcvalue(key)); } } /* ** returns the index for `key' if `key' is an appropriate key to live in ** the array part of the table, -1 otherwise. */ static int arrayindex (const TValue *key) { if (ttisnumber(key)) { lua_Number n = nvalue(key); int k; lua_number2int(k, n); if (luai_numeq(cast_num(k), n)) return k; } return -1; /* `key' did not match some condition */ } /* ** returns the index of a `key' for table traversals. First goes all ** elements in the array part, then elements in the hash part. The ** beginning of a traversal is signalled by -1. */ static int findindex (lua_State *L, Table *t, StkId key) { int i; if (ttisnil(key)) return -1; /* first iteration */ i = arrayindex(key); if (0 < i && i <= t->sizearray) /* is `key' inside array part? */ return i-1; /* yes; that's the index (corrected to C) */ else { Node *n = mainposition(t, key); do { /* check whether `key' is somewhere in the chain */ /* key may be dead already, but it is ok to use it in `next' */ if (luaO_rawequalObj(key2tval(n), key) || (ttype(gkey(n)) == LUA_TDEADKEY && iscollectable(key) && gcvalue(gkey(n)) == gcvalue(key))) { i = cast_int(n - gnode(t, 0)); /* key index in hash table */ /* hash elements are numbered after array ones */ return i + t->sizearray; } else n = gnext(n); } while (n); luaG_runerror(L, "invalid key to " LUA_QL("next")); /* key not found */ return 0; /* to avoid warnings */ } } int luaH_next (lua_State *L, Table *t, StkId key) { int i = findindex(L, t, key); /* find original element */ for (i++; i < t->sizearray; i++) { /* try first array part */ if (!ttisnil(&t->array[i])) { /* a non-nil value? */ setnvalue(key, cast_num(i+1)); setobj2s(L, key+1, &t->array[i]); return 1; } } for (i -= t->sizearray; i < sizenode(t); i++) { /* then hash part */ if (!ttisnil(gval(gnode(t, i)))) { /* a non-nil value? */ setobj2s(L, key, key2tval(gnode(t, i))); setobj2s(L, key+1, gval(gnode(t, i))); return 1; } } return 0; /* no more elements */ } /* ** {============================================================= ** Rehash ** ============================================================== */ static int computesizes (int nums[], int *narray) { int i; int twotoi; /* 2^i */ int a = 0; /* number of elements smaller than 2^i */ int na = 0; /* number of elements to go to array part */ int n = 0; /* optimal size for array part */ for (i = 0, twotoi = 1; twotoi/2 < *narray; i++, twotoi *= 2) { if (nums[i] > 0) { a += nums[i]; if (a > twotoi/2) { /* more than half elements present? */ n = twotoi; /* optimal size (till now) */ na = a; /* all elements smaller than n will go to array part */ } } if (a == *narray) break; /* all elements already counted */ } *narray = n; lua_assert(*narray/2 <= na && na <= *narray); return na; } static int countint (const TValue *key, int *nums) { int k = arrayindex(key); if (0 < k && k <= MAXASIZE) { /* is `key' an appropriate array index? */ nums[ceillog2(k)]++; /* count as such */ return 1; } else return 0; } static int numusearray (const Table *t, int *nums) { int lg; int ttlg; /* 2^lg */ int ause = 0; /* summation of `nums' */ int i = 1; /* count to traverse all array keys */ for (lg=0, ttlg=1; lg<=MAXBITS; lg++, ttlg*=2) { /* for each slice */ int lc = 0; /* counter */ int lim = ttlg; if (lim > t->sizearray) { lim = t->sizearray; /* adjust upper limit */ if (i > lim) break; /* no more elements to count */ } /* count elements in range (2^(lg-1), 2^lg] */ for (; i <= lim; i++) { if (!ttisnil(&t->array[i-1])) lc++; } nums[lg] += lc; ause += lc; } return ause; } static int numusehash (const Table *t, int *nums, int *pnasize) { int totaluse = 0; /* total number of elements */ int ause = 0; /* summation of `nums' */ int i = sizenode(t); while (i--) { Node *n = &t->node[i]; if (!ttisnil(gval(n))) { ause += countint(key2tval(n), nums); totaluse++; } } *pnasize += ause; return totaluse; } static void setarrayvector (lua_State *L, Table *t, int size) { int i; luaM_reallocvector(L, t->array, t->sizearray, size, TValue); for (i=t->sizearray; iarray[i]); t->sizearray = size; } static void setnodevector (lua_State *L, Table *t, int size) { int lsize; if (size == 0) { /* no elements to hash part? */ t->node = cast(Node *, dummynode); /* use common `dummynode' */ lsize = 0; } else { int i; lsize = ceillog2(size); if (lsize > MAXBITS) luaG_runerror(L, "table overflow"); size = twoto(lsize); t->node = luaM_newvector(L, size, Node); for (i=0; ilsizenode = cast_byte(lsize); t->lastfree = gnode(t, size); /* all positions are free */ } static void resize (lua_State *L, Table *t, int nasize, int nhsize) { int i; int oldasize = t->sizearray; int oldhsize = t->lsizenode; Node *nold = t->node; /* save old hash ... */ if (nasize > oldasize) /* array part must grow? */ setarrayvector(L, t, nasize); /* create new hash part with appropriate size */ setnodevector(L, t, nhsize); if (nasize < oldasize) { /* array part must shrink? */ t->sizearray = nasize; /* re-insert elements from vanishing slice */ for (i=nasize; iarray[i])) setobjt2t(L, luaH_setnum(L, t, i+1), &t->array[i]); } /* shrink array */ luaM_reallocvector(L, t->array, oldasize, nasize, TValue); } /* re-insert elements from hash part */ for (i = twoto(oldhsize) - 1; i >= 0; i--) { Node *old = nold+i; if (!ttisnil(gval(old))) setobjt2t(L, luaH_set(L, t, key2tval(old)), gval(old)); } if (nold != dummynode) luaM_freearray(L, nold, twoto(oldhsize), Node); /* free old array */ } void luaH_resizearray (lua_State *L, Table *t, int nasize) { int nsize = (t->node == dummynode) ? 0 : sizenode(t); resize(L, t, nasize, nsize); } static void rehash (lua_State *L, Table *t, const TValue *ek) { int nasize, na; int nums[MAXBITS+1]; /* nums[i] = number of keys between 2^(i-1) and 2^i */ int i; int totaluse; for (i=0; i<=MAXBITS; i++) nums[i] = 0; /* reset counts */ nasize = numusearray(t, nums); /* count keys in array part */ totaluse = nasize; /* all those keys are integer keys */ totaluse += numusehash(t, nums, &nasize); /* count keys in hash part */ /* count extra key */ nasize += countint(ek, nums); totaluse++; /* compute new size for array part */ na = computesizes(nums, &nasize); /* resize the table to new computed sizes */ resize(L, t, nasize, totaluse - na); } /* ** }============================================================= */ Table *luaH_new (lua_State *L, int narray, int nhash) { Table *t = luaM_new(L, Table); luaC_link(L, obj2gco(t), LUA_TTABLE); t->metatable = NULL; t->flags = cast_byte(~0); /* temporary values (kept only if some malloc fails) */ t->array = NULL; t->sizearray = 0; t->lsizenode = 0; t->node = cast(Node *, dummynode); setarrayvector(L, t, narray); setnodevector(L, t, nhash); return t; } void luaH_free (lua_State *L, Table *t) { if (t->node != dummynode) luaM_freearray(L, t->node, sizenode(t), Node); luaM_freearray(L, t->array, t->sizearray, TValue); luaM_free(L, t); } static Node *getfreepos (Table *t) { while (t->lastfree-- > t->node) { if (ttisnil(gkey(t->lastfree))) return t->lastfree; } return NULL; /* could not find a free place */ } /* ** inserts a new key into a hash table; first, check whether key's main ** position is free. If not, check whether colliding node is in its main ** position or not: if it is not, move colliding node to an empty place and ** put new key in its main position; otherwise (colliding node is in its main ** position), new key goes to an empty position. */ static TValue *newkey (lua_State *L, Table *t, const TValue *key) { Node *mp = mainposition(t, key); if (!ttisnil(gval(mp)) || mp == dummynode) { Node *othern; Node *n = getfreepos(t); /* get a free place */ if (n == NULL) { /* cannot find a free place? */ rehash(L, t, key); /* grow table */ return luaH_set(L, t, key); /* re-insert key into grown table */ } lua_assert(n != dummynode); othern = mainposition(t, key2tval(mp)); if (othern != mp) { /* is colliding node out of its main position? */ /* yes; move colliding node into free position */ while (gnext(othern) != mp) othern = gnext(othern); /* find previous */ gnext(othern) = n; /* redo the chain with `n' in place of `mp' */ *n = *mp; /* copy colliding node into free pos. (mp->next also goes) */ gnext(mp) = NULL; /* now `mp' is free */ setnilvalue(gval(mp)); } else { /* colliding node is in its own main position */ /* new node will go into free position */ gnext(n) = gnext(mp); /* chain new position */ gnext(mp) = n; mp = n; } } gkey(mp)->value = key->value; gkey(mp)->tt = key->tt; luaC_barriert(L, t, key); lua_assert(ttisnil(gval(mp))); return gval(mp); } /* ** search function for integers */ const TValue *luaH_getnum (Table *t, int key) { /* (1 <= key && key <= t->sizearray) */ if (cast(unsigned int, key-1) < cast(unsigned int, t->sizearray)) return &t->array[key-1]; else { lua_Number nk = cast_num(key); Node *n = hashnum(t, nk); do { /* check whether `key' is somewhere in the chain */ if (ttisnumber(gkey(n)) && luai_numeq(nvalue(gkey(n)), nk)) return gval(n); /* that's it */ else n = gnext(n); } while (n); return luaO_nilobject; } } /* ** search function for strings */ const TValue *luaH_getstr (Table *t, TString *key) { Node *n = hashstr(t, key); do { /* check whether `key' is somewhere in the chain */ if (ttisstring(gkey(n)) && rawtsvalue(gkey(n)) == key) return gval(n); /* that's it */ else n = gnext(n); } while (n); return luaO_nilobject; } /* ** main search function */ const TValue *luaH_get (Table *t, const TValue *key) { switch (ttype(key)) { case LUA_TNIL: return luaO_nilobject; case LUA_TSTRING: return luaH_getstr(t, rawtsvalue(key)); case LUA_TNUMBER: { int k; lua_Number n = nvalue(key); lua_number2int(k, n); if (luai_numeq(cast_num(k), nvalue(key))) /* index is int? */ return luaH_getnum(t, k); /* use specialized version */ /* else go through */ } default: { Node *n = mainposition(t, key); do { /* check whether `key' is somewhere in the chain */ if (luaO_rawequalObj(key2tval(n), key)) return gval(n); /* that's it */ else n = gnext(n); } while (n); return luaO_nilobject; } } } TValue *luaH_set (lua_State *L, Table *t, const TValue *key) { const TValue *p = luaH_get(t, key); t->flags = 0; if (p != luaO_nilobject) return cast(TValue *, p); else { if (ttisnil(key)) luaG_runerror(L, "table index is nil"); else if (ttisnumber(key) && luai_numisnan(nvalue(key))) luaG_runerror(L, "table index is NaN"); return newkey(L, t, key); } } TValue *luaH_setnum (lua_State *L, Table *t, int key) { const TValue *p = luaH_getnum(t, key); if (p != luaO_nilobject) return cast(TValue *, p); else { TValue k; setnvalue(&k, cast_num(key)); return newkey(L, t, &k); } } TValue *luaH_setstr (lua_State *L, Table *t, TString *key) { const TValue *p = luaH_getstr(t, key); if (p != luaO_nilobject) return cast(TValue *, p); else { TValue k; setsvalue(L, &k, key); return newkey(L, t, &k); } } static int unbound_search (Table *t, unsigned int j) { unsigned int i = j; /* i is zero or a present index */ j++; /* find `i' and `j' such that i is present and j is not */ while (!ttisnil(luaH_getnum(t, j))) { i = j; j *= 2; if (j > cast(unsigned int, MAX_INT)) { /* overflow? */ /* table was built with bad purposes: resort to linear search */ i = 1; while (!ttisnil(luaH_getnum(t, i))) i++; return i - 1; } } /* now do a binary search between them */ while (j - i > 1) { unsigned int m = (i+j)/2; if (ttisnil(luaH_getnum(t, m))) j = m; else i = m; } return i; } /* ** Try to find a boundary in table `t'. A `boundary' is an integer index ** such that t[i] is non-nil and t[i+1] is nil (and 0 if t[1] is nil). */ int luaH_getn (Table *t) { unsigned int j = t->sizearray; if (j > 0 && ttisnil(&t->array[j - 1])) { /* there is a boundary in the array part: (binary) search for it */ unsigned int i = 0; while (j - i > 1) { unsigned int m = (i+j)/2; if (ttisnil(&t->array[m - 1])) j = m; else i = m; } return i; } /* else must find a boundary in hash part */ else if (t->node == dummynode) /* hash part is empty? */ return j; /* that is easy... */ else return unbound_search(t, j); } #if defined(LUA_DEBUG) Node *luaH_mainposition (const Table *t, const TValue *key) { return mainposition(t, key); } int luaH_isdummy (Node *n) { return n == dummynode; } #endif redis-2.6.16/deps/lua/src/ltable.h000066400000000000000000000022401220734223100166250ustar00rootroot00000000000000/* ** $Id: ltable.h,v 2.10.1.1 2007/12/27 13:02:25 roberto Exp $ ** Lua tables (hash) ** See Copyright Notice in lua.h */ #ifndef ltable_h #define ltable_h #include "lobject.h" #define gnode(t,i) (&(t)->node[i]) #define gkey(n) (&(n)->i_key.nk) #define gval(n) (&(n)->i_val) #define gnext(n) ((n)->i_key.nk.next) #define key2tval(n) (&(n)->i_key.tvk) LUAI_FUNC const TValue *luaH_getnum (Table *t, int key); LUAI_FUNC TValue *luaH_setnum (lua_State *L, Table *t, int key); LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key); LUAI_FUNC TValue *luaH_setstr (lua_State *L, Table *t, TString *key); LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key); LUAI_FUNC TValue *luaH_set (lua_State *L, Table *t, const TValue *key); LUAI_FUNC Table *luaH_new (lua_State *L, int narray, int lnhash); LUAI_FUNC void luaH_resizearray (lua_State *L, Table *t, int nasize); LUAI_FUNC void luaH_free (lua_State *L, Table *t); LUAI_FUNC int luaH_next (lua_State *L, Table *t, StkId key); LUAI_FUNC int luaH_getn (Table *t); #if defined(LUA_DEBUG) LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key); LUAI_FUNC int luaH_isdummy (Node *n); #endif #endif redis-2.6.16/deps/lua/src/ltablib.c000066400000000000000000000162571220734223100170030ustar00rootroot00000000000000/* ** $Id: ltablib.c,v 1.38.1.3 2008/02/14 16:46:58 roberto Exp $ ** Library for Table Manipulation ** See Copyright Notice in lua.h */ #include #define ltablib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #include "lualib.h" #define aux_getn(L,n) (luaL_checktype(L, n, LUA_TTABLE), luaL_getn(L, n)) static int foreachi (lua_State *L) { int i; int n = aux_getn(L, 1); luaL_checktype(L, 2, LUA_TFUNCTION); for (i=1; i <= n; i++) { lua_pushvalue(L, 2); /* function */ lua_pushinteger(L, i); /* 1st argument */ lua_rawgeti(L, 1, i); /* 2nd argument */ lua_call(L, 2, 1); if (!lua_isnil(L, -1)) return 1; lua_pop(L, 1); /* remove nil result */ } return 0; } static int foreach (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); luaL_checktype(L, 2, LUA_TFUNCTION); lua_pushnil(L); /* first key */ while (lua_next(L, 1)) { lua_pushvalue(L, 2); /* function */ lua_pushvalue(L, -3); /* key */ lua_pushvalue(L, -3); /* value */ lua_call(L, 2, 1); if (!lua_isnil(L, -1)) return 1; lua_pop(L, 2); /* remove value and result */ } return 0; } static int maxn (lua_State *L) { lua_Number max = 0; luaL_checktype(L, 1, LUA_TTABLE); lua_pushnil(L); /* first key */ while (lua_next(L, 1)) { lua_pop(L, 1); /* remove value */ if (lua_type(L, -1) == LUA_TNUMBER) { lua_Number v = lua_tonumber(L, -1); if (v > max) max = v; } } lua_pushnumber(L, max); return 1; } static int getn (lua_State *L) { lua_pushinteger(L, aux_getn(L, 1)); return 1; } static int setn (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); #ifndef luaL_setn luaL_setn(L, 1, luaL_checkint(L, 2)); #else luaL_error(L, LUA_QL("setn") " is obsolete"); #endif lua_pushvalue(L, 1); return 1; } static int tinsert (lua_State *L) { int e = aux_getn(L, 1) + 1; /* first empty element */ int pos; /* where to insert new element */ switch (lua_gettop(L)) { case 2: { /* called with only 2 arguments */ pos = e; /* insert new element at the end */ break; } case 3: { int i; pos = luaL_checkint(L, 2); /* 2nd argument is the position */ if (pos > e) e = pos; /* `grow' array if necessary */ for (i = e; i > pos; i--) { /* move up elements */ lua_rawgeti(L, 1, i-1); lua_rawseti(L, 1, i); /* t[i] = t[i-1] */ } break; } default: { return luaL_error(L, "wrong number of arguments to " LUA_QL("insert")); } } luaL_setn(L, 1, e); /* new size */ lua_rawseti(L, 1, pos); /* t[pos] = v */ return 0; } static int tremove (lua_State *L) { int e = aux_getn(L, 1); int pos = luaL_optint(L, 2, e); if (!(1 <= pos && pos <= e)) /* position is outside bounds? */ return 0; /* nothing to remove */ luaL_setn(L, 1, e - 1); /* t.n = n-1 */ lua_rawgeti(L, 1, pos); /* result = t[pos] */ for ( ;pos= P */ while (lua_rawgeti(L, 1, ++i), sort_comp(L, -1, -2)) { if (i>u) luaL_error(L, "invalid order function for sorting"); lua_pop(L, 1); /* remove a[i] */ } /* repeat --j until a[j] <= P */ while (lua_rawgeti(L, 1, --j), sort_comp(L, -3, -1)) { if (j #define ltm_c #define LUA_CORE #include "lua.h" #include "lobject.h" #include "lstate.h" #include "lstring.h" #include "ltable.h" #include "ltm.h" const char *const luaT_typenames[] = { "nil", "boolean", "userdata", "number", "string", "table", "function", "userdata", "thread", "proto", "upval" }; void luaT_init (lua_State *L) { static const char *const luaT_eventname[] = { /* ORDER TM */ "__index", "__newindex", "__gc", "__mode", "__eq", "__add", "__sub", "__mul", "__div", "__mod", "__pow", "__unm", "__len", "__lt", "__le", "__concat", "__call" }; int i; for (i=0; itmname[i] = luaS_new(L, luaT_eventname[i]); luaS_fix(G(L)->tmname[i]); /* never collect these names */ } } /* ** function to be used with macro "fasttm": optimized for absence of ** tag methods */ const TValue *luaT_gettm (Table *events, TMS event, TString *ename) { const TValue *tm = luaH_getstr(events, ename); lua_assert(event <= TM_EQ); if (ttisnil(tm)) { /* no tag method? */ events->flags |= cast_byte(1u<metatable; break; case LUA_TUSERDATA: mt = uvalue(o)->metatable; break; default: mt = G(L)->mt[ttype(o)]; } return (mt ? luaH_getstr(mt, G(L)->tmname[event]) : luaO_nilobject); } redis-2.6.16/deps/lua/src/ltm.h000066400000000000000000000017721220734223100161670ustar00rootroot00000000000000/* ** $Id: ltm.h,v 2.6.1.1 2007/12/27 13:02:25 roberto Exp $ ** Tag methods ** See Copyright Notice in lua.h */ #ifndef ltm_h #define ltm_h #include "lobject.h" /* * WARNING: if you change the order of this enumeration, * grep "ORDER TM" */ typedef enum { TM_INDEX, TM_NEWINDEX, TM_GC, TM_MODE, TM_EQ, /* last tag method with `fast' access */ TM_ADD, TM_SUB, TM_MUL, TM_DIV, TM_MOD, TM_POW, TM_UNM, TM_LEN, TM_LT, TM_LE, TM_CONCAT, TM_CALL, TM_N /* number of elements in the enum */ } TMS; #define gfasttm(g,et,e) ((et) == NULL ? NULL : \ ((et)->flags & (1u<<(e))) ? NULL : luaT_gettm(et, e, (g)->tmname[e])) #define fasttm(l,et,e) gfasttm(G(l), et, e) LUAI_DATA const char *const luaT_typenames[]; LUAI_FUNC const TValue *luaT_gettm (Table *events, TMS event, TString *ename); LUAI_FUNC const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o, TMS event); LUAI_FUNC void luaT_init (lua_State *L); #endif redis-2.6.16/deps/lua/src/lua.c000066400000000000000000000236631220734223100161520ustar00rootroot00000000000000/* ** $Id: lua.c,v 1.160.1.2 2007/12/28 15:32:23 roberto Exp $ ** Lua stand-alone interpreter ** See Copyright Notice in lua.h */ #include #include #include #include #define lua_c #include "lua.h" #include "lauxlib.h" #include "lualib.h" static lua_State *globalL = NULL; static const char *progname = LUA_PROGNAME; static void lstop (lua_State *L, lua_Debug *ar) { (void)ar; /* unused arg. */ lua_sethook(L, NULL, 0, 0); luaL_error(L, "interrupted!"); } static void laction (int i) { signal(i, SIG_DFL); /* if another SIGINT happens before lstop, terminate process (default action) */ lua_sethook(globalL, lstop, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1); } static void print_usage (void) { fprintf(stderr, "usage: %s [options] [script [args]].\n" "Available options are:\n" " -e stat execute string " LUA_QL("stat") "\n" " -l name require library " LUA_QL("name") "\n" " -i enter interactive mode after executing " LUA_QL("script") "\n" " -v show version information\n" " -- stop handling options\n" " - execute stdin and stop handling options\n" , progname); fflush(stderr); } static void l_message (const char *pname, const char *msg) { if (pname) fprintf(stderr, "%s: ", pname); fprintf(stderr, "%s\n", msg); fflush(stderr); } static int report (lua_State *L, int status) { if (status && !lua_isnil(L, -1)) { const char *msg = lua_tostring(L, -1); if (msg == NULL) msg = "(error object is not a string)"; l_message(progname, msg); lua_pop(L, 1); } return status; } static int traceback (lua_State *L) { if (!lua_isstring(L, 1)) /* 'message' not a string? */ return 1; /* keep it intact */ lua_getfield(L, LUA_GLOBALSINDEX, "debug"); if (!lua_istable(L, -1)) { lua_pop(L, 1); return 1; } lua_getfield(L, -1, "traceback"); if (!lua_isfunction(L, -1)) { lua_pop(L, 2); return 1; } lua_pushvalue(L, 1); /* pass error message */ lua_pushinteger(L, 2); /* skip this function and traceback */ lua_call(L, 2, 1); /* call debug.traceback */ return 1; } static int docall (lua_State *L, int narg, int clear) { int status; int base = lua_gettop(L) - narg; /* function index */ lua_pushcfunction(L, traceback); /* push traceback function */ lua_insert(L, base); /* put it under chunk and args */ signal(SIGINT, laction); status = lua_pcall(L, narg, (clear ? 0 : LUA_MULTRET), base); signal(SIGINT, SIG_DFL); lua_remove(L, base); /* remove traceback function */ /* force a complete garbage collection in case of errors */ if (status != 0) lua_gc(L, LUA_GCCOLLECT, 0); return status; } static void print_version (void) { l_message(NULL, LUA_RELEASE " " LUA_COPYRIGHT); } static int getargs (lua_State *L, char **argv, int n) { int narg; int i; int argc = 0; while (argv[argc]) argc++; /* count total number of arguments */ narg = argc - (n + 1); /* number of arguments to the script */ luaL_checkstack(L, narg + 3, "too many arguments to script"); for (i=n+1; i < argc; i++) lua_pushstring(L, argv[i]); lua_createtable(L, narg, n + 1); for (i=0; i < argc; i++) { lua_pushstring(L, argv[i]); lua_rawseti(L, -2, i - n); } return narg; } static int dofile (lua_State *L, const char *name) { int status = luaL_loadfile(L, name) || docall(L, 0, 1); return report(L, status); } static int dostring (lua_State *L, const char *s, const char *name) { int status = luaL_loadbuffer(L, s, strlen(s), name) || docall(L, 0, 1); return report(L, status); } static int dolibrary (lua_State *L, const char *name) { lua_getglobal(L, "require"); lua_pushstring(L, name); return report(L, docall(L, 1, 1)); } static const char *get_prompt (lua_State *L, int firstline) { const char *p; lua_getfield(L, LUA_GLOBALSINDEX, firstline ? "_PROMPT" : "_PROMPT2"); p = lua_tostring(L, -1); if (p == NULL) p = (firstline ? LUA_PROMPT : LUA_PROMPT2); lua_pop(L, 1); /* remove global */ return p; } static int incomplete (lua_State *L, int status) { if (status == LUA_ERRSYNTAX) { size_t lmsg; const char *msg = lua_tolstring(L, -1, &lmsg); const char *tp = msg + lmsg - (sizeof(LUA_QL("")) - 1); if (strstr(msg, LUA_QL("")) == tp) { lua_pop(L, 1); return 1; } } return 0; /* else... */ } static int pushline (lua_State *L, int firstline) { char buffer[LUA_MAXINPUT]; char *b = buffer; size_t l; const char *prmt = get_prompt(L, firstline); if (lua_readline(L, b, prmt) == 0) return 0; /* no input */ l = strlen(b); if (l > 0 && b[l-1] == '\n') /* line ends with newline? */ b[l-1] = '\0'; /* remove it */ if (firstline && b[0] == '=') /* first line starts with `=' ? */ lua_pushfstring(L, "return %s", b+1); /* change it to `return' */ else lua_pushstring(L, b); lua_freeline(L, b); return 1; } static int loadline (lua_State *L) { int status; lua_settop(L, 0); if (!pushline(L, 1)) return -1; /* no input */ for (;;) { /* repeat until gets a complete line */ status = luaL_loadbuffer(L, lua_tostring(L, 1), lua_strlen(L, 1), "=stdin"); if (!incomplete(L, status)) break; /* cannot try to add lines? */ if (!pushline(L, 0)) /* no more input? */ return -1; lua_pushliteral(L, "\n"); /* add a new line... */ lua_insert(L, -2); /* ...between the two lines */ lua_concat(L, 3); /* join them */ } lua_saveline(L, 1); lua_remove(L, 1); /* remove line */ return status; } static void dotty (lua_State *L) { int status; const char *oldprogname = progname; progname = NULL; while ((status = loadline(L)) != -1) { if (status == 0) status = docall(L, 0, 0); report(L, status); if (status == 0 && lua_gettop(L) > 0) { /* any result to print? */ lua_getglobal(L, "print"); lua_insert(L, 1); if (lua_pcall(L, lua_gettop(L)-1, 0, 0) != 0) l_message(progname, lua_pushfstring(L, "error calling " LUA_QL("print") " (%s)", lua_tostring(L, -1))); } } lua_settop(L, 0); /* clear stack */ fputs("\n", stdout); fflush(stdout); progname = oldprogname; } static int handle_script (lua_State *L, char **argv, int n) { int status; const char *fname; int narg = getargs(L, argv, n); /* collect arguments */ lua_setglobal(L, "arg"); fname = argv[n]; if (strcmp(fname, "-") == 0 && strcmp(argv[n-1], "--") != 0) fname = NULL; /* stdin */ status = luaL_loadfile(L, fname); lua_insert(L, -(narg+1)); if (status == 0) status = docall(L, narg, 0); else lua_pop(L, narg); return report(L, status); } /* check that argument has no extra characters at the end */ #define notail(x) {if ((x)[2] != '\0') return -1;} static int collectargs (char **argv, int *pi, int *pv, int *pe) { int i; for (i = 1; argv[i] != NULL; i++) { if (argv[i][0] != '-') /* not an option? */ return i; switch (argv[i][1]) { /* option */ case '-': notail(argv[i]); return (argv[i+1] != NULL ? i+1 : 0); case '\0': return i; case 'i': notail(argv[i]); *pi = 1; /* go through */ case 'v': notail(argv[i]); *pv = 1; break; case 'e': *pe = 1; /* go through */ case 'l': if (argv[i][2] == '\0') { i++; if (argv[i] == NULL) return -1; } break; default: return -1; /* invalid option */ } } return 0; } static int runargs (lua_State *L, char **argv, int n) { int i; for (i = 1; i < n; i++) { if (argv[i] == NULL) continue; lua_assert(argv[i][0] == '-'); switch (argv[i][1]) { /* option */ case 'e': { const char *chunk = argv[i] + 2; if (*chunk == '\0') chunk = argv[++i]; lua_assert(chunk != NULL); if (dostring(L, chunk, "=(command line)") != 0) return 1; break; } case 'l': { const char *filename = argv[i] + 2; if (*filename == '\0') filename = argv[++i]; lua_assert(filename != NULL); if (dolibrary(L, filename)) return 1; /* stop if file fails */ break; } default: break; } } return 0; } static int handle_luainit (lua_State *L) { const char *init = getenv(LUA_INIT); if (init == NULL) return 0; /* status OK */ else if (init[0] == '@') return dofile(L, init+1); else return dostring(L, init, "=" LUA_INIT); } struct Smain { int argc; char **argv; int status; }; static int pmain (lua_State *L) { struct Smain *s = (struct Smain *)lua_touserdata(L, 1); char **argv = s->argv; int script; int has_i = 0, has_v = 0, has_e = 0; globalL = L; if (argv[0] && argv[0][0]) progname = argv[0]; lua_gc(L, LUA_GCSTOP, 0); /* stop collector during initialization */ luaL_openlibs(L); /* open libraries */ lua_gc(L, LUA_GCRESTART, 0); s->status = handle_luainit(L); if (s->status != 0) return 0; script = collectargs(argv, &has_i, &has_v, &has_e); if (script < 0) { /* invalid args? */ print_usage(); s->status = 1; return 0; } if (has_v) print_version(); s->status = runargs(L, argv, (script > 0) ? script : s->argc); if (s->status != 0) return 0; if (script) s->status = handle_script(L, argv, script); if (s->status != 0) return 0; if (has_i) dotty(L); else if (script == 0 && !has_e && !has_v) { if (lua_stdin_is_tty()) { print_version(); dotty(L); } else dofile(L, NULL); /* executes stdin as a file */ } return 0; } int main (int argc, char **argv) { int status; struct Smain s; lua_State *L = lua_open(); /* create state */ if (L == NULL) { l_message(argv[0], "cannot create state: not enough memory"); return EXIT_FAILURE; } s.argc = argc; s.argv = argv; status = lua_cpcall(L, &pmain, &s); report(L, status); lua_close(L); return (status || s.status) ? EXIT_FAILURE : EXIT_SUCCESS; } redis-2.6.16/deps/lua/src/lua.h000066400000000000000000000266501220734223100161560ustar00rootroot00000000000000/* ** $Id: lua.h,v 1.218.1.7 2012/01/13 20:36:20 roberto Exp $ ** Lua - An Extensible Extension Language ** Lua.org, PUC-Rio, Brazil (http://www.lua.org) ** See Copyright Notice at the end of this file */ #ifndef lua_h #define lua_h #include #include #include "luaconf.h" #define LUA_VERSION "Lua 5.1" #define LUA_RELEASE "Lua 5.1.5" #define LUA_VERSION_NUM 501 #define LUA_COPYRIGHT "Copyright (C) 1994-2012 Lua.org, PUC-Rio" #define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo & W. Celes" /* mark for precompiled code (`Lua') */ #define LUA_SIGNATURE "\033Lua" /* option for multiple returns in `lua_pcall' and `lua_call' */ #define LUA_MULTRET (-1) /* ** pseudo-indices */ #define LUA_REGISTRYINDEX (-10000) #define LUA_ENVIRONINDEX (-10001) #define LUA_GLOBALSINDEX (-10002) #define lua_upvalueindex(i) (LUA_GLOBALSINDEX-(i)) /* thread status; 0 is OK */ #define LUA_YIELD 1 #define LUA_ERRRUN 2 #define LUA_ERRSYNTAX 3 #define LUA_ERRMEM 4 #define LUA_ERRERR 5 typedef struct lua_State lua_State; typedef int (*lua_CFunction) (lua_State *L); /* ** functions that read/write blocks when loading/dumping Lua chunks */ typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz); typedef int (*lua_Writer) (lua_State *L, const void* p, size_t sz, void* ud); /* ** prototype for memory-allocation functions */ typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize); /* ** basic types */ #define LUA_TNONE (-1) #define LUA_TNIL 0 #define LUA_TBOOLEAN 1 #define LUA_TLIGHTUSERDATA 2 #define LUA_TNUMBER 3 #define LUA_TSTRING 4 #define LUA_TTABLE 5 #define LUA_TFUNCTION 6 #define LUA_TUSERDATA 7 #define LUA_TTHREAD 8 /* minimum Lua stack available to a C function */ #define LUA_MINSTACK 20 /* ** generic extra include file */ #if defined(LUA_USER_H) #include LUA_USER_H #endif /* type of numbers in Lua */ typedef LUA_NUMBER lua_Number; /* type for integer functions */ typedef LUA_INTEGER lua_Integer; /* ** state manipulation */ LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud); LUA_API void (lua_close) (lua_State *L); LUA_API lua_State *(lua_newthread) (lua_State *L); LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf); /* ** basic stack manipulation */ LUA_API int (lua_gettop) (lua_State *L); LUA_API void (lua_settop) (lua_State *L, int idx); LUA_API void (lua_pushvalue) (lua_State *L, int idx); LUA_API void (lua_remove) (lua_State *L, int idx); LUA_API void (lua_insert) (lua_State *L, int idx); LUA_API void (lua_replace) (lua_State *L, int idx); LUA_API int (lua_checkstack) (lua_State *L, int sz); LUA_API void (lua_xmove) (lua_State *from, lua_State *to, int n); /* ** access functions (stack -> C) */ LUA_API int (lua_isnumber) (lua_State *L, int idx); LUA_API int (lua_isstring) (lua_State *L, int idx); LUA_API int (lua_iscfunction) (lua_State *L, int idx); LUA_API int (lua_isuserdata) (lua_State *L, int idx); LUA_API int (lua_type) (lua_State *L, int idx); LUA_API const char *(lua_typename) (lua_State *L, int tp); LUA_API int (lua_equal) (lua_State *L, int idx1, int idx2); LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2); LUA_API int (lua_lessthan) (lua_State *L, int idx1, int idx2); LUA_API lua_Number (lua_tonumber) (lua_State *L, int idx); LUA_API lua_Integer (lua_tointeger) (lua_State *L, int idx); LUA_API int (lua_toboolean) (lua_State *L, int idx); LUA_API const char *(lua_tolstring) (lua_State *L, int idx, size_t *len); LUA_API size_t (lua_objlen) (lua_State *L, int idx); LUA_API lua_CFunction (lua_tocfunction) (lua_State *L, int idx); LUA_API void *(lua_touserdata) (lua_State *L, int idx); LUA_API lua_State *(lua_tothread) (lua_State *L, int idx); LUA_API const void *(lua_topointer) (lua_State *L, int idx); /* ** push functions (C -> stack) */ LUA_API void (lua_pushnil) (lua_State *L); LUA_API void (lua_pushnumber) (lua_State *L, lua_Number n); LUA_API void (lua_pushinteger) (lua_State *L, lua_Integer n); LUA_API void (lua_pushlstring) (lua_State *L, const char *s, size_t l); LUA_API void (lua_pushstring) (lua_State *L, const char *s); LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt, va_list argp); LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...); LUA_API void (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n); LUA_API void (lua_pushboolean) (lua_State *L, int b); LUA_API void (lua_pushlightuserdata) (lua_State *L, void *p); LUA_API int (lua_pushthread) (lua_State *L); /* ** get functions (Lua -> stack) */ LUA_API void (lua_gettable) (lua_State *L, int idx); LUA_API void (lua_getfield) (lua_State *L, int idx, const char *k); LUA_API void (lua_rawget) (lua_State *L, int idx); LUA_API void (lua_rawgeti) (lua_State *L, int idx, int n); LUA_API void (lua_createtable) (lua_State *L, int narr, int nrec); LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz); LUA_API int (lua_getmetatable) (lua_State *L, int objindex); LUA_API void (lua_getfenv) (lua_State *L, int idx); /* ** set functions (stack -> Lua) */ LUA_API void (lua_settable) (lua_State *L, int idx); LUA_API void (lua_setfield) (lua_State *L, int idx, const char *k); LUA_API void (lua_rawset) (lua_State *L, int idx); LUA_API void (lua_rawseti) (lua_State *L, int idx, int n); LUA_API int (lua_setmetatable) (lua_State *L, int objindex); LUA_API int (lua_setfenv) (lua_State *L, int idx); /* ** `load' and `call' functions (load and run Lua code) */ LUA_API void (lua_call) (lua_State *L, int nargs, int nresults); LUA_API int (lua_pcall) (lua_State *L, int nargs, int nresults, int errfunc); LUA_API int (lua_cpcall) (lua_State *L, lua_CFunction func, void *ud); LUA_API int (lua_load) (lua_State *L, lua_Reader reader, void *dt, const char *chunkname); LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data); /* ** coroutine functions */ LUA_API int (lua_yield) (lua_State *L, int nresults); LUA_API int (lua_resume) (lua_State *L, int narg); LUA_API int (lua_status) (lua_State *L); /* ** garbage-collection function and options */ #define LUA_GCSTOP 0 #define LUA_GCRESTART 1 #define LUA_GCCOLLECT 2 #define LUA_GCCOUNT 3 #define LUA_GCCOUNTB 4 #define LUA_GCSTEP 5 #define LUA_GCSETPAUSE 6 #define LUA_GCSETSTEPMUL 7 LUA_API int (lua_gc) (lua_State *L, int what, int data); /* ** miscellaneous functions */ LUA_API int (lua_error) (lua_State *L); LUA_API int (lua_next) (lua_State *L, int idx); LUA_API void (lua_concat) (lua_State *L, int n); LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud); LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud); /* ** =============================================================== ** some useful macros ** =============================================================== */ #define lua_pop(L,n) lua_settop(L, -(n)-1) #define lua_newtable(L) lua_createtable(L, 0, 0) #define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n))) #define lua_pushcfunction(L,f) lua_pushcclosure(L, (f), 0) #define lua_strlen(L,i) lua_objlen(L, (i)) #define lua_isfunction(L,n) (lua_type(L, (n)) == LUA_TFUNCTION) #define lua_istable(L,n) (lua_type(L, (n)) == LUA_TTABLE) #define lua_islightuserdata(L,n) (lua_type(L, (n)) == LUA_TLIGHTUSERDATA) #define lua_isnil(L,n) (lua_type(L, (n)) == LUA_TNIL) #define lua_isboolean(L,n) (lua_type(L, (n)) == LUA_TBOOLEAN) #define lua_isthread(L,n) (lua_type(L, (n)) == LUA_TTHREAD) #define lua_isnone(L,n) (lua_type(L, (n)) == LUA_TNONE) #define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0) #define lua_pushliteral(L, s) \ lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1) #define lua_setglobal(L,s) lua_setfield(L, LUA_GLOBALSINDEX, (s)) #define lua_getglobal(L,s) lua_getfield(L, LUA_GLOBALSINDEX, (s)) #define lua_tostring(L,i) lua_tolstring(L, (i), NULL) /* ** compatibility macros and functions */ #define lua_open() luaL_newstate() #define lua_getregistry(L) lua_pushvalue(L, LUA_REGISTRYINDEX) #define lua_getgccount(L) lua_gc(L, LUA_GCCOUNT, 0) #define lua_Chunkreader lua_Reader #define lua_Chunkwriter lua_Writer /* hack */ LUA_API void lua_setlevel (lua_State *from, lua_State *to); /* ** {====================================================================== ** Debug API ** ======================================================================= */ /* ** Event codes */ #define LUA_HOOKCALL 0 #define LUA_HOOKRET 1 #define LUA_HOOKLINE 2 #define LUA_HOOKCOUNT 3 #define LUA_HOOKTAILRET 4 /* ** Event masks */ #define LUA_MASKCALL (1 << LUA_HOOKCALL) #define LUA_MASKRET (1 << LUA_HOOKRET) #define LUA_MASKLINE (1 << LUA_HOOKLINE) #define LUA_MASKCOUNT (1 << LUA_HOOKCOUNT) typedef struct lua_Debug lua_Debug; /* activation record */ /* Functions to be called by the debuger in specific events */ typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar); LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar); LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar); LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n); LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n); LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n); LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n); LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count); LUA_API lua_Hook lua_gethook (lua_State *L); LUA_API int lua_gethookmask (lua_State *L); LUA_API int lua_gethookcount (lua_State *L); struct lua_Debug { int event; const char *name; /* (n) */ const char *namewhat; /* (n) `global', `local', `field', `method' */ const char *what; /* (S) `Lua', `C', `main', `tail' */ const char *source; /* (S) */ int currentline; /* (l) */ int nups; /* (u) number of upvalues */ int linedefined; /* (S) */ int lastlinedefined; /* (S) */ char short_src[LUA_IDSIZE]; /* (S) */ /* private part */ int i_ci; /* active function */ }; /* }====================================================================== */ /****************************************************************************** * Copyright (C) 1994-2012 Lua.org, PUC-Rio. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ******************************************************************************/ #endif redis-2.6.16/deps/lua/src/lua_cjson.c000066400000000000000000001111201220734223100173300ustar00rootroot00000000000000#define VERSION "1.0.3" /* CJSON - JSON support for Lua * * Copyright (c) 2010-2011 Mark Pulford * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /* Caveats: * - JSON "null" values are represented as lightuserdata since Lua * tables cannot contain "nil". Compare with cjson.null. * - Invalid UTF-8 characters are not detected and will be passed * untouched. If required, UTF-8 error checking should be done * outside this library. * - Javascript comments are not part of the JSON spec, and are not * currently supported. * * Note: Decoding is slower than encoding. Lua spends significant * time (30%) managing tables when parsing JSON since it is * difficult to know object/array sizes ahead of time. */ #include #include #include #include "lua.h" #include "lauxlib.h" #include "strbuf.h" #ifdef MISSING_ISINF #define isinf(x) (!isnan(x) && isnan((x) - (x))) #endif #define DEFAULT_SPARSE_CONVERT 0 #define DEFAULT_SPARSE_RATIO 2 #define DEFAULT_SPARSE_SAFE 10 #define DEFAULT_MAX_DEPTH 20 #define DEFAULT_ENCODE_REFUSE_BADNUM 1 #define DEFAULT_DECODE_REFUSE_BADNUM 0 #define DEFAULT_ENCODE_KEEP_BUFFER 1 typedef enum { T_OBJ_BEGIN, T_OBJ_END, T_ARR_BEGIN, T_ARR_END, T_STRING, T_NUMBER, T_BOOLEAN, T_NULL, T_COLON, T_COMMA, T_END, T_WHITESPACE, T_ERROR, T_UNKNOWN } json_token_type_t; static const char *json_token_type_name[] = { "T_OBJ_BEGIN", "T_OBJ_END", "T_ARR_BEGIN", "T_ARR_END", "T_STRING", "T_NUMBER", "T_BOOLEAN", "T_NULL", "T_COLON", "T_COMMA", "T_END", "T_WHITESPACE", "T_ERROR", "T_UNKNOWN", NULL }; typedef struct { json_token_type_t ch2token[256]; char escape2char[256]; /* Decoding */ #if 0 char escapes[35][8]; /* Pre-generated escape string buffer */ char *char2escape[256]; /* Encoding */ #endif strbuf_t encode_buf; char number_fmt[8]; /* "%.XXg\0" */ int current_depth; int encode_sparse_convert; int encode_sparse_ratio; int encode_sparse_safe; int encode_max_depth; int encode_refuse_badnum; int decode_refuse_badnum; int encode_keep_buffer; int encode_number_precision; } json_config_t; typedef struct { const char *data; int index; strbuf_t *tmp; /* Temporary storage for strings */ json_config_t *cfg; } json_parse_t; typedef struct { json_token_type_t type; int index; union { const char *string; double number; int boolean; } value; int string_len; } json_token_t; static const char *char2escape[256] = { "\\u0000", "\\u0001", "\\u0002", "\\u0003", "\\u0004", "\\u0005", "\\u0006", "\\u0007", "\\b", "\\t", "\\n", "\\u000b", "\\f", "\\r", "\\u000e", "\\u000f", "\\u0010", "\\u0011", "\\u0012", "\\u0013", "\\u0014", "\\u0015", "\\u0016", "\\u0017", "\\u0018", "\\u0019", "\\u001a", "\\u001b", "\\u001c", "\\u001d", "\\u001e", "\\u001f", NULL, NULL, "\\\"", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "\\/", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "\\\\", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "\\u007f", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, }; static int json_config_key; /* ===== CONFIGURATION ===== */ static json_config_t *json_fetch_config(lua_State *l) { json_config_t *cfg; lua_pushlightuserdata(l, &json_config_key); lua_gettable(l, LUA_REGISTRYINDEX); cfg = lua_touserdata(l, -1); if (!cfg) luaL_error(l, "BUG: Unable to fetch CJSON configuration"); lua_pop(l, 1); return cfg; } static void json_verify_arg_count(lua_State *l, int args) { luaL_argcheck(l, lua_gettop(l) <= args, args + 1, "found too many arguments"); } /* Configures handling of extremely sparse arrays: * convert: Convert extremely sparse arrays into objects? Otherwise error. * ratio: 0: always allow sparse; 1: never allow sparse; >1: use ratio * safe: Always use an array when the max index <= safe */ static int json_cfg_encode_sparse_array(lua_State *l) { json_config_t *cfg; int val; json_verify_arg_count(l, 3); cfg = json_fetch_config(l); switch (lua_gettop(l)) { case 3: val = luaL_checkinteger(l, 3); luaL_argcheck(l, val >= 0, 3, "expected integer >= 0"); cfg->encode_sparse_safe = val; case 2: val = luaL_checkinteger(l, 2); luaL_argcheck(l, val >= 0, 2, "expected integer >= 0"); cfg->encode_sparse_ratio = val; case 1: luaL_argcheck(l, lua_isboolean(l, 1), 1, "expected boolean"); cfg->encode_sparse_convert = lua_toboolean(l, 1); } lua_pushboolean(l, cfg->encode_sparse_convert); lua_pushinteger(l, cfg->encode_sparse_ratio); lua_pushinteger(l, cfg->encode_sparse_safe); return 3; } /* Configures the maximum number of nested arrays/objects allowed when * encoding */ static int json_cfg_encode_max_depth(lua_State *l) { json_config_t *cfg; int depth; json_verify_arg_count(l, 1); cfg = json_fetch_config(l); if (lua_gettop(l)) { depth = luaL_checkinteger(l, 1); luaL_argcheck(l, depth > 0, 1, "expected positive integer"); cfg->encode_max_depth = depth; } lua_pushinteger(l, cfg->encode_max_depth); return 1; } static void json_set_number_precision(json_config_t *cfg, int prec) { cfg->encode_number_precision = prec; sprintf(cfg->number_fmt, "%%.%dg", prec); } /* Configures number precision when converting doubles to text */ static int json_cfg_encode_number_precision(lua_State *l) { json_config_t *cfg; int precision; json_verify_arg_count(l, 1); cfg = json_fetch_config(l); if (lua_gettop(l)) { precision = luaL_checkinteger(l, 1); luaL_argcheck(l, 1 <= precision && precision <= 14, 1, "expected integer between 1 and 14"); json_set_number_precision(cfg, precision); } lua_pushinteger(l, cfg->encode_number_precision); return 1; } /* Configures JSON encoding buffer persistence */ static int json_cfg_encode_keep_buffer(lua_State *l) { json_config_t *cfg; json_verify_arg_count(l, 1); cfg = json_fetch_config(l); if (lua_gettop(l)) { luaL_checktype(l, 1, LUA_TBOOLEAN); cfg->encode_keep_buffer = lua_toboolean(l, 1); } lua_pushboolean(l, cfg->encode_keep_buffer); return 1; } /* On argument: decode enum and set config variables * **options must point to a NULL terminated array of 4 enums * Returns: current enum value */ static void json_enum_option(lua_State *l, const char **options, int *opt1, int *opt2) { int setting; if (lua_gettop(l)) { if (lua_isboolean(l, 1)) setting = lua_toboolean(l, 1) * 3; else setting = luaL_checkoption(l, 1, NULL, options); *opt1 = setting & 1 ? 1 : 0; *opt2 = setting & 2 ? 1 : 0; } else { setting = *opt1 | (*opt2 << 1); } if (setting) lua_pushstring(l, options[setting]); else lua_pushboolean(l, 0); } /* When enabled, rejects: NaN, Infinity, hexidecimal numbers */ static int json_cfg_refuse_invalid_numbers(lua_State *l) { static const char *options_enc_dec[] = { "none", "encode", "decode", "both", NULL }; json_config_t *cfg; json_verify_arg_count(l, 1); cfg = json_fetch_config(l); json_enum_option(l, options_enc_dec, &cfg->encode_refuse_badnum, &cfg->decode_refuse_badnum); return 1; } static int json_destroy_config(lua_State *l) { json_config_t *cfg; cfg = lua_touserdata(l, 1); if (cfg) strbuf_free(&cfg->encode_buf); cfg = NULL; return 0; } static void json_create_config(lua_State *l) { json_config_t *cfg; int i; cfg = lua_newuserdata(l, sizeof(*cfg)); /* Create GC method to clean up strbuf */ lua_newtable(l); lua_pushcfunction(l, json_destroy_config); lua_setfield(l, -2, "__gc"); lua_setmetatable(l, -2); strbuf_init(&cfg->encode_buf, 0); cfg->encode_sparse_convert = DEFAULT_SPARSE_CONVERT; cfg->encode_sparse_ratio = DEFAULT_SPARSE_RATIO; cfg->encode_sparse_safe = DEFAULT_SPARSE_SAFE; cfg->encode_max_depth = DEFAULT_MAX_DEPTH; cfg->encode_refuse_badnum = DEFAULT_ENCODE_REFUSE_BADNUM; cfg->decode_refuse_badnum = DEFAULT_DECODE_REFUSE_BADNUM; cfg->encode_keep_buffer = DEFAULT_ENCODE_KEEP_BUFFER; json_set_number_precision(cfg, 14); /* Decoding init */ /* Tag all characters as an error */ for (i = 0; i < 256; i++) cfg->ch2token[i] = T_ERROR; /* Set tokens that require no further processing */ cfg->ch2token['{'] = T_OBJ_BEGIN; cfg->ch2token['}'] = T_OBJ_END; cfg->ch2token['['] = T_ARR_BEGIN; cfg->ch2token[']'] = T_ARR_END; cfg->ch2token[','] = T_COMMA; cfg->ch2token[':'] = T_COLON; cfg->ch2token['\0'] = T_END; cfg->ch2token[' '] = T_WHITESPACE; cfg->ch2token['\t'] = T_WHITESPACE; cfg->ch2token['\n'] = T_WHITESPACE; cfg->ch2token['\r'] = T_WHITESPACE; /* Update characters that require further processing */ cfg->ch2token['f'] = T_UNKNOWN; /* false? */ cfg->ch2token['i'] = T_UNKNOWN; /* inf, ininity? */ cfg->ch2token['I'] = T_UNKNOWN; cfg->ch2token['n'] = T_UNKNOWN; /* null, nan? */ cfg->ch2token['N'] = T_UNKNOWN; cfg->ch2token['t'] = T_UNKNOWN; /* true? */ cfg->ch2token['"'] = T_UNKNOWN; /* string? */ cfg->ch2token['+'] = T_UNKNOWN; /* number? */ cfg->ch2token['-'] = T_UNKNOWN; for (i = 0; i < 10; i++) cfg->ch2token['0' + i] = T_UNKNOWN; /* Lookup table for parsing escape characters */ for (i = 0; i < 256; i++) cfg->escape2char[i] = 0; /* String error */ cfg->escape2char['"'] = '"'; cfg->escape2char['\\'] = '\\'; cfg->escape2char['/'] = '/'; cfg->escape2char['b'] = '\b'; cfg->escape2char['t'] = '\t'; cfg->escape2char['n'] = '\n'; cfg->escape2char['f'] = '\f'; cfg->escape2char['r'] = '\r'; cfg->escape2char['u'] = 'u'; /* Unicode parsing required */ #if 0 /* Initialise separate storage for pre-generated escape codes. * Escapes 0-31 map directly, 34, 92, 127 follow afterwards to * save memory. */ for (i = 0 ; i < 32; i++) sprintf(cfg->escapes[i], "\\u%04x", i); strcpy(cfg->escapes[8], "\b"); /* Override simpler escapes */ strcpy(cfg->escapes[9], "\t"); strcpy(cfg->escapes[10], "\n"); strcpy(cfg->escapes[12], "\f"); strcpy(cfg->escapes[13], "\r"); strcpy(cfg->escapes[32], "\\\""); /* chr(34) */ strcpy(cfg->escapes[33], "\\\\"); /* chr(92) */ sprintf(cfg->escapes[34], "\\u%04x", 127); /* char(127) */ /* Initialise encoding escape lookup table */ for (i = 0; i < 32; i++) cfg->char2escape[i] = cfg->escapes[i]; for (i = 32; i < 256; i++) cfg->char2escape[i] = NULL; cfg->char2escape[34] = cfg->escapes[32]; cfg->char2escape[92] = cfg->escapes[33]; cfg->char2escape[127] = cfg->escapes[34]; #endif } /* ===== ENCODING ===== */ static void json_encode_exception(lua_State *l, json_config_t *cfg, int lindex, const char *reason) { if (!cfg->encode_keep_buffer) strbuf_free(&cfg->encode_buf); luaL_error(l, "Cannot serialise %s: %s", lua_typename(l, lua_type(l, lindex)), reason); } /* json_append_string args: * - lua_State * - JSON strbuf * - String (Lua stack index) * * Returns nothing. Doesn't remove string from Lua stack */ static void json_append_string(lua_State *l, strbuf_t *json, int lindex) { const char *escstr; int i; const char *str; size_t len; str = lua_tolstring(l, lindex, &len); /* Worst case is len * 6 (all unicode escapes). * This buffer is reused constantly for small strings * If there are any excess pages, they won't be hit anyway. * This gains ~5% speedup. */ strbuf_ensure_empty_length(json, len * 6 + 2); strbuf_append_char_unsafe(json, '\"'); for (i = 0; i < len; i++) { escstr = char2escape[(unsigned char)str[i]]; if (escstr) strbuf_append_string(json, escstr); else strbuf_append_char_unsafe(json, str[i]); } strbuf_append_char_unsafe(json, '\"'); } /* Find the size of the array on the top of the Lua stack * -1 object (not a pure array) * >=0 elements in array */ static int lua_array_length(lua_State *l, json_config_t *cfg) { double k; int max; int items; max = 0; items = 0; lua_pushnil(l); /* table, startkey */ while (lua_next(l, -2) != 0) { /* table, key, value */ if (lua_type(l, -2) == LUA_TNUMBER && (k = lua_tonumber(l, -2))) { /* Integer >= 1 ? */ if (floor(k) == k && k >= 1) { if (k > max) max = k; items++; lua_pop(l, 1); continue; } } /* Must not be an array (non integer key) */ lua_pop(l, 2); return -1; } /* Encode excessively sparse arrays as objects (if enabled) */ if (cfg->encode_sparse_ratio > 0 && max > items * cfg->encode_sparse_ratio && max > cfg->encode_sparse_safe) { if (!cfg->encode_sparse_convert) json_encode_exception(l, cfg, -1, "excessively sparse array"); return -1; } return max; } static void json_encode_descend(lua_State *l, json_config_t *cfg) { cfg->current_depth++; if (cfg->current_depth > cfg->encode_max_depth) { if (!cfg->encode_keep_buffer) strbuf_free(&cfg->encode_buf); luaL_error(l, "Cannot serialise, excessive nesting (%d)", cfg->current_depth); } } static void json_append_data(lua_State *l, json_config_t *cfg, strbuf_t *json); /* json_append_array args: * - lua_State * - JSON strbuf * - Size of passwd Lua array (top of stack) */ static void json_append_array(lua_State *l, json_config_t *cfg, strbuf_t *json, int array_length) { int comma, i; json_encode_descend(l, cfg); strbuf_append_char(json, '['); comma = 0; for (i = 1; i <= array_length; i++) { if (comma) strbuf_append_char(json, ','); else comma = 1; lua_rawgeti(l, -1, i); json_append_data(l, cfg, json); lua_pop(l, 1); } strbuf_append_char(json, ']'); cfg->current_depth--; } static void json_append_number(lua_State *l, strbuf_t *json, int index, json_config_t *cfg) { double num = lua_tonumber(l, index); if (cfg->encode_refuse_badnum && (isinf(num) || isnan(num))) json_encode_exception(l, cfg, index, "must not be NaN or Inf"); /* Lowest double printed with %.14g is 21 characters long: * -1.7976931348623e+308 * * Use 32 to include the \0, and a few extra just in case.. */ strbuf_append_fmt(json, 32, cfg->number_fmt, num); } static void json_append_object(lua_State *l, json_config_t *cfg, strbuf_t *json) { int comma, keytype; json_encode_descend(l, cfg); /* Object */ strbuf_append_char(json, '{'); lua_pushnil(l); /* table, startkey */ comma = 0; while (lua_next(l, -2) != 0) { if (comma) strbuf_append_char(json, ','); else comma = 1; /* table, key, value */ keytype = lua_type(l, -2); if (keytype == LUA_TNUMBER) { strbuf_append_char(json, '"'); json_append_number(l, json, -2, cfg); strbuf_append_mem(json, "\":", 2); } else if (keytype == LUA_TSTRING) { json_append_string(l, json, -2); strbuf_append_char(json, ':'); } else { json_encode_exception(l, cfg, -2, "table key must be a number or string"); /* never returns */ } /* table, key, value */ json_append_data(l, cfg, json); lua_pop(l, 1); /* table, key */ } strbuf_append_char(json, '}'); cfg->current_depth--; } /* Serialise Lua data into JSON string. */ static void json_append_data(lua_State *l, json_config_t *cfg, strbuf_t *json) { int len; switch (lua_type(l, -1)) { case LUA_TSTRING: json_append_string(l, json, -1); break; case LUA_TNUMBER: json_append_number(l, json, -1, cfg); break; case LUA_TBOOLEAN: if (lua_toboolean(l, -1)) strbuf_append_mem(json, "true", 4); else strbuf_append_mem(json, "false", 5); break; case LUA_TTABLE: len = lua_array_length(l, cfg); if (len > 0) json_append_array(l, cfg, json, len); else json_append_object(l, cfg, json); break; case LUA_TNIL: strbuf_append_mem(json, "null", 4); break; case LUA_TLIGHTUSERDATA: if (lua_touserdata(l, -1) == NULL) { strbuf_append_mem(json, "null", 4); break; } default: /* Remaining types (LUA_TFUNCTION, LUA_TUSERDATA, LUA_TTHREAD, * and LUA_TLIGHTUSERDATA) cannot be serialised */ json_encode_exception(l, cfg, -1, "type not supported"); /* never returns */ } } static int json_encode(lua_State *l) { json_config_t *cfg; char *json; int len; /* Can't use json_verify_arg_count() since we need to ensure * there is only 1 argument */ luaL_argcheck(l, lua_gettop(l) == 1, 1, "expected 1 argument"); cfg = json_fetch_config(l); cfg->current_depth = 0; /* Reset the persistent buffer if it exists. * Otherwise allocate a new buffer. */ if (strbuf_allocated(&cfg->encode_buf)) strbuf_reset(&cfg->encode_buf); else strbuf_init(&cfg->encode_buf, 0); json_append_data(l, cfg, &cfg->encode_buf); json = strbuf_string(&cfg->encode_buf, &len); lua_pushlstring(l, json, len); if (!cfg->encode_keep_buffer) strbuf_free(&cfg->encode_buf); return 1; } /* ===== DECODING ===== */ static void json_process_value(lua_State *l, json_parse_t *json, json_token_t *token); static int hexdigit2int(char hex) { if ('0' <= hex && hex <= '9') return hex - '0'; /* Force lowercase */ hex |= 0x20; if ('a' <= hex && hex <= 'f') return 10 + hex - 'a'; return -1; } static int decode_hex4(const char *hex) { int digit[4]; int i; /* Convert ASCII hex digit to numeric digit * Note: this returns an error for invalid hex digits, including * NULL */ for (i = 0; i < 4; i++) { digit[i] = hexdigit2int(hex[i]); if (digit[i] < 0) { return -1; } } return (digit[0] << 12) + (digit[1] << 8) + (digit[2] << 4) + digit[3]; } /* Converts a Unicode codepoint to UTF-8. * Returns UTF-8 string length, and up to 4 bytes in *utf8 */ static int codepoint_to_utf8(char *utf8, int codepoint) { /* 0xxxxxxx */ if (codepoint <= 0x7F) { utf8[0] = codepoint; return 1; } /* 110xxxxx 10xxxxxx */ if (codepoint <= 0x7FF) { utf8[0] = (codepoint >> 6) | 0xC0; utf8[1] = (codepoint & 0x3F) | 0x80; return 2; } /* 1110xxxx 10xxxxxx 10xxxxxx */ if (codepoint <= 0xFFFF) { utf8[0] = (codepoint >> 12) | 0xE0; utf8[1] = ((codepoint >> 6) & 0x3F) | 0x80; utf8[2] = (codepoint & 0x3F) | 0x80; return 3; } /* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */ if (codepoint <= 0x1FFFFF) { utf8[0] = (codepoint >> 18) | 0xF0; utf8[1] = ((codepoint >> 12) & 0x3F) | 0x80; utf8[2] = ((codepoint >> 6) & 0x3F) | 0x80; utf8[3] = (codepoint & 0x3F) | 0x80; return 4; } return 0; } /* Called when index pointing to beginning of UTF-16 code escape: \uXXXX * \u is guaranteed to exist, but the remaining hex characters may be * missing. * Translate to UTF-8 and append to temporary token string. * Must advance index to the next character to be processed. * Returns: 0 success * -1 error */ static int json_append_unicode_escape(json_parse_t *json) { char utf8[4]; /* Surrogate pairs require 4 UTF-8 bytes */ int codepoint; int surrogate_low; int len; int escape_len = 6; /* Fetch UTF-16 code unit */ codepoint = decode_hex4(&json->data[json->index + 2]); if (codepoint < 0) return -1; /* UTF-16 surrogate pairs take the following 2 byte form: * 11011 x yyyyyyyyyy * When x = 0: y is the high 10 bits of the codepoint * x = 1: y is the low 10 bits of the codepoint * * Check for a surrogate pair (high or low) */ if ((codepoint & 0xF800) == 0xD800) { /* Error if the 1st surrogate is not high */ if (codepoint & 0x400) return -1; /* Ensure the next code is a unicode escape */ if (json->data[json->index + escape_len] != '\\' || json->data[json->index + escape_len + 1] != 'u') { return -1; } /* Fetch the next codepoint */ surrogate_low = decode_hex4(&json->data[json->index + 2 + escape_len]); if (surrogate_low < 0) return -1; /* Error if the 2nd code is not a low surrogate */ if ((surrogate_low & 0xFC00) != 0xDC00) return -1; /* Calculate Unicode codepoint */ codepoint = (codepoint & 0x3FF) << 10; surrogate_low &= 0x3FF; codepoint = (codepoint | surrogate_low) + 0x10000; escape_len = 12; } /* Convert codepoint to UTF-8 */ len = codepoint_to_utf8(utf8, codepoint); if (!len) return -1; /* Append bytes and advance parse index */ strbuf_append_mem_unsafe(json->tmp, utf8, len); json->index += escape_len; return 0; } static void json_set_token_error(json_token_t *token, json_parse_t *json, const char *errtype) { token->type = T_ERROR; token->index = json->index; token->value.string = errtype; } static void json_next_string_token(json_parse_t *json, json_token_t *token) { char *escape2char = json->cfg->escape2char; char ch; /* Caller must ensure a string is next */ assert(json->data[json->index] == '"'); /* Skip " */ json->index++; /* json->tmp is the temporary strbuf used to accumulate the * decoded string value. */ strbuf_reset(json->tmp); while ((ch = json->data[json->index]) != '"') { if (!ch) { /* Premature end of the string */ json_set_token_error(token, json, "unexpected end of string"); return; } /* Handle escapes */ if (ch == '\\') { /* Fetch escape character */ ch = json->data[json->index + 1]; /* Translate escape code and append to tmp string */ ch = escape2char[(unsigned char)ch]; if (ch == 'u') { if (json_append_unicode_escape(json) == 0) continue; json_set_token_error(token, json, "invalid unicode escape code"); return; } if (!ch) { json_set_token_error(token, json, "invalid escape code"); return; } /* Skip '\' */ json->index++; } /* Append normal character or translated single character * Unicode escapes are handled above */ strbuf_append_char_unsafe(json->tmp, ch); json->index++; } json->index++; /* Eat final quote (") */ strbuf_ensure_null(json->tmp); token->type = T_STRING; token->value.string = strbuf_string(json->tmp, &token->string_len); } /* JSON numbers should take the following form: * -?(0|[1-9]|[1-9][0-9]+)(.[0-9]+)?([eE][-+]?[0-9]+)? * * json_next_number_token() uses strtod() which allows other forms: * - numbers starting with '+' * - NaN, -NaN, infinity, -infinity * - hexidecimal numbers * - numbers with leading zeros * * json_is_invalid_number() detects "numbers" which may pass strtod()'s * error checking, but should not be allowed with strict JSON. * * json_is_invalid_number() may pass numbers which cause strtod() * to generate an error. */ static int json_is_invalid_number(json_parse_t *json) { int i = json->index; /* Reject numbers starting with + */ if (json->data[i] == '+') return 1; /* Skip minus sign if it exists */ if (json->data[i] == '-') i++; /* Reject numbers starting with 0x, or leading zeros */ if (json->data[i] == '0') { int ch2 = json->data[i + 1]; if ((ch2 | 0x20) == 'x' || /* Hex */ ('0' <= ch2 && ch2 <= '9')) /* Leading zero */ return 1; return 0; } else if (json->data[i] <= '9') { return 0; /* Ordinary number */ } /* Reject inf/nan */ if (!strncasecmp(&json->data[i], "inf", 3)) return 1; if (!strncasecmp(&json->data[i], "nan", 3)) return 1; /* Pass all other numbers which may still be invalid, but * strtod() will catch them. */ return 0; } static void json_next_number_token(json_parse_t *json, json_token_t *token) { const char *startptr; char *endptr; token->type = T_NUMBER; startptr = &json->data[json->index]; token->value.number = strtod(&json->data[json->index], &endptr); if (startptr == endptr) json_set_token_error(token, json, "invalid number"); else json->index += endptr - startptr; /* Skip the processed number */ return; } /* Fills in the token struct. * T_STRING will return a pointer to the json_parse_t temporary string * T_ERROR will leave the json->index pointer at the error. */ static void json_next_token(json_parse_t *json, json_token_t *token) { json_token_type_t *ch2token = json->cfg->ch2token; int ch; /* Eat whitespace. FIXME: UGLY */ token->type = ch2token[(unsigned char)json->data[json->index]]; while (token->type == T_WHITESPACE) token->type = ch2token[(unsigned char)json->data[++json->index]]; token->index = json->index; /* Don't advance the pointer for an error or the end */ if (token->type == T_ERROR) { json_set_token_error(token, json, "invalid token"); return; } if (token->type == T_END) { return; } /* Found a known single character token, advance index and return */ if (token->type != T_UNKNOWN) { json->index++; return; } /* Process characters which triggered T_UNKNOWN */ ch = json->data[json->index]; /* Must use strncmp() to match the front of the JSON string. * JSON identifier must be lowercase. * When strict_numbers if disabled, either case is allowed for * Infinity/NaN (since we are no longer following the spec..) */ if (ch == '"') { json_next_string_token(json, token); return; } else if (ch == '-' || ('0' <= ch && ch <= '9')) { if (json->cfg->decode_refuse_badnum && json_is_invalid_number(json)) { json_set_token_error(token, json, "invalid number"); return; } json_next_number_token(json, token); return; } else if (!strncmp(&json->data[json->index], "true", 4)) { token->type = T_BOOLEAN; token->value.boolean = 1; json->index += 4; return; } else if (!strncmp(&json->data[json->index], "false", 5)) { token->type = T_BOOLEAN; token->value.boolean = 0; json->index += 5; return; } else if (!strncmp(&json->data[json->index], "null", 4)) { token->type = T_NULL; json->index += 4; return; } else if (!json->cfg->decode_refuse_badnum && json_is_invalid_number(json)) { /* When refuse_badnum is disabled, only attempt to process * numbers we know are invalid JSON (Inf, NaN, hex) * This is required to generate an appropriate token error, * otherwise all bad tokens will register as "invalid number" */ json_next_number_token(json, token); return; } /* Token starts with t/f/n but isn't recognised above. */ json_set_token_error(token, json, "invalid token"); } /* This function does not return. * DO NOT CALL WITH DYNAMIC MEMORY ALLOCATED. * The only supported exception is the temporary parser string * json->tmp struct. * json and token should exist on the stack somewhere. * luaL_error() will long_jmp and release the stack */ static void json_throw_parse_error(lua_State *l, json_parse_t *json, const char *exp, json_token_t *token) { const char *found; strbuf_free(json->tmp); if (token->type == T_ERROR) found = token->value.string; else found = json_token_type_name[token->type]; /* Note: token->index is 0 based, display starting from 1 */ luaL_error(l, "Expected %s but found %s at character %d", exp, found, token->index + 1); } static void json_decode_checkstack(lua_State *l, json_parse_t *json, int n) { if (lua_checkstack(l, n)) return; strbuf_free(json->tmp); luaL_error(l, "Too many nested data structures"); } static void json_parse_object_context(lua_State *l, json_parse_t *json) { json_token_t token; /* 3 slots required: * .., table, key, value */ json_decode_checkstack(l, json, 3); lua_newtable(l); json_next_token(json, &token); /* Handle empty objects */ if (token.type == T_OBJ_END) { return; } while (1) { if (token.type != T_STRING) json_throw_parse_error(l, json, "object key string", &token); /* Push key */ lua_pushlstring(l, token.value.string, token.string_len); json_next_token(json, &token); if (token.type != T_COLON) json_throw_parse_error(l, json, "colon", &token); /* Fetch value */ json_next_token(json, &token); json_process_value(l, json, &token); /* Set key = value */ lua_rawset(l, -3); json_next_token(json, &token); if (token.type == T_OBJ_END) return; if (token.type != T_COMMA) json_throw_parse_error(l, json, "comma or object end", &token); json_next_token(json, &token); } } /* Handle the array context */ static void json_parse_array_context(lua_State *l, json_parse_t *json) { json_token_t token; int i; /* 2 slots required: * .., table, value */ json_decode_checkstack(l, json, 2); lua_newtable(l); json_next_token(json, &token); /* Handle empty arrays */ if (token.type == T_ARR_END) return; for (i = 1; ; i++) { json_process_value(l, json, &token); lua_rawseti(l, -2, i); /* arr[i] = value */ json_next_token(json, &token); if (token.type == T_ARR_END) return; if (token.type != T_COMMA) json_throw_parse_error(l, json, "comma or array end", &token); json_next_token(json, &token); } } /* Handle the "value" context */ static void json_process_value(lua_State *l, json_parse_t *json, json_token_t *token) { switch (token->type) { case T_STRING: lua_pushlstring(l, token->value.string, token->string_len); break;; case T_NUMBER: lua_pushnumber(l, token->value.number); break;; case T_BOOLEAN: lua_pushboolean(l, token->value.boolean); break;; case T_OBJ_BEGIN: json_parse_object_context(l, json); break;; case T_ARR_BEGIN: json_parse_array_context(l, json); break;; case T_NULL: /* In Lua, setting "t[k] = nil" will delete k from the table. * Hence a NULL pointer lightuserdata object is used instead */ lua_pushlightuserdata(l, NULL); break;; default: json_throw_parse_error(l, json, "value", token); } } /* json_text must be null terminated string */ static void lua_json_decode(lua_State *l, const char *json_text, int json_len) { json_parse_t json; json_token_t token; json.cfg = json_fetch_config(l); json.data = json_text; json.index = 0; /* Ensure the temporary buffer can hold the entire string. * This means we no longer need to do length checks since the decoded * string must be smaller than the entire json string */ json.tmp = strbuf_new(json_len); json_next_token(&json, &token); json_process_value(l, &json, &token); /* Ensure there is no more input left */ json_next_token(&json, &token); if (token.type != T_END) json_throw_parse_error(l, &json, "the end", &token); strbuf_free(json.tmp); } static int json_decode(lua_State *l) { const char *json; size_t len; json_verify_arg_count(l, 1); json = luaL_checklstring(l, 1, &len); /* Detect Unicode other than UTF-8 (see RFC 4627, Sec 3) * * CJSON can support any simple data type, hence only the first * character is guaranteed to be ASCII (at worst: '"'). This is * still enough to detect whether the wrong encoding is in use. */ if (len >= 2 && (!json[0] || !json[1])) luaL_error(l, "JSON parser does not support UTF-16 or UTF-32"); lua_json_decode(l, json, len); return 1; } /* ===== INITIALISATION ===== */ int luaopen_cjson(lua_State *l) { luaL_Reg reg[] = { { "encode", json_encode }, { "decode", json_decode }, { "encode_sparse_array", json_cfg_encode_sparse_array }, { "encode_max_depth", json_cfg_encode_max_depth }, { "encode_number_precision", json_cfg_encode_number_precision }, { "encode_keep_buffer", json_cfg_encode_keep_buffer }, { "refuse_invalid_numbers", json_cfg_refuse_invalid_numbers }, { NULL, NULL } }; /* Use json_fetch_config as a pointer. * It's faster than using a config string, and more unique */ lua_pushlightuserdata(l, &json_config_key); json_create_config(l); lua_settable(l, LUA_REGISTRYINDEX); luaL_register(l, "cjson", reg); /* Set cjson.null */ lua_pushlightuserdata(l, NULL); lua_setfield(l, -2, "null"); /* Set cjson.version */ lua_pushliteral(l, VERSION); lua_setfield(l, -2, "version"); /* Return cjson table */ return 1; } /* vi:ai et sw=4 ts=4: */ redis-2.6.16/deps/lua/src/lua_cmsgpack.c000066400000000000000000000545351220734223100200240ustar00rootroot00000000000000#include #include #include #include #include #include "lua.h" #include "lauxlib.h" #define LUACMSGPACK_VERSION "lua-cmsgpack 0.3.0" #define LUACMSGPACK_COPYRIGHT "Copyright (C) 2012, Salvatore Sanfilippo" #define LUACMSGPACK_DESCRIPTION "MessagePack C implementation for Lua" #define LUACMSGPACK_MAX_NESTING 16 /* Max tables nesting. */ /* ============================================================================== * MessagePack implementation and bindings for Lua 5.1. * Copyright(C) 2012 Salvatore Sanfilippo * * http://github.com/antirez/lua-cmsgpack * * For MessagePack specification check the following web site: * http://wiki.msgpack.org/display/MSGPACK/Format+specification * * See Copyright Notice at the end of this file. * * CHANGELOG: * 19-Feb-2012 (ver 0.1.0): Initial release. * 20-Feb-2012 (ver 0.2.0): Tables encoding improved. * 20-Feb-2012 (ver 0.2.1): Minor bug fixing. * 20-Feb-2012 (ver 0.3.0): Module renamed lua-cmsgpack (was lua-msgpack). * ============================================================================ */ /* --------------------------- Endian conversion -------------------------------- * We use it only for floats and doubles, all the other conversions are performed * in an endian independent fashion. So the only thing we need is a function * that swaps a binary string if the arch is little endian (and left it untouched * otherwise). */ /* Reverse memory bytes if arch is little endian. Given the conceptual * simplicity of the Lua build system we prefer to check for endianess at runtime. * The performance difference should be acceptable. */ static void memrevifle(void *ptr, size_t len) { unsigned char *p = ptr, *e = p+len-1, aux; int test = 1; unsigned char *testp = (unsigned char*) &test; if (testp[0] == 0) return; /* Big endian, nothign to do. */ len /= 2; while(len--) { aux = *p; *p = *e; *e = aux; p++; e--; } } /* ----------------------------- String buffer ---------------------------------- * This is a simple implementation of string buffers. The only opereation * supported is creating empty buffers and appending bytes to it. * The string buffer uses 2x preallocation on every realloc for O(N) append * behavior. */ typedef struct mp_buf { unsigned char *b; size_t len, free; } mp_buf; static mp_buf *mp_buf_new(void) { mp_buf *buf = malloc(sizeof(*buf)); buf->b = NULL; buf->len = buf->free = 0; return buf; } void mp_buf_append(mp_buf *buf, const unsigned char *s, size_t len) { if (buf->free < len) { size_t newlen = buf->len+len; buf->b = realloc(buf->b,newlen*2); buf->free = newlen; } memcpy(buf->b+buf->len,s,len); buf->len += len; buf->free -= len; } void mp_buf_free(mp_buf *buf) { free(buf->b); free(buf); } /* ------------------------------ String cursor ---------------------------------- * This simple data structure is used for parsing. Basically you create a cursor * using a string pointer and a length, then it is possible to access the * current string position with cursor->p, check the remaining length * in cursor->left, and finally consume more string using * mp_cur_consume(cursor,len), to advance 'p' and subtract 'left'. * An additional field cursor->error is set to zero on initialization and can * be used to report errors. */ #define MP_CUR_ERROR_NONE 0 #define MP_CUR_ERROR_EOF 1 /* Not enough data to complete the opereation. */ #define MP_CUR_ERROR_BADFMT 2 /* Bad data format */ typedef struct mp_cur { const unsigned char *p; size_t left; int err; } mp_cur; static mp_cur *mp_cur_new(const unsigned char *s, size_t len) { mp_cur *cursor = malloc(sizeof(*cursor)); cursor->p = s; cursor->left = len; cursor->err = MP_CUR_ERROR_NONE; return cursor; } static void mp_cur_free(mp_cur *cursor) { free(cursor); } #define mp_cur_consume(_c,_len) do { _c->p += _len; _c->left -= _len; } while(0) /* When there is not enough room we set an error in the cursor and return, this * is very common across the code so we have a macro to make the code look * a bit simpler. */ #define mp_cur_need(_c,_len) do { \ if (_c->left < _len) { \ _c->err = MP_CUR_ERROR_EOF; \ return; \ } \ } while(0) /* --------------------------- Low level MP encoding -------------------------- */ static void mp_encode_bytes(mp_buf *buf, const unsigned char *s, size_t len) { unsigned char hdr[5]; int hdrlen; if (len < 32) { hdr[0] = 0xa0 | (len&0xff); /* fix raw */ hdrlen = 1; } else if (len <= 0xffff) { hdr[0] = 0xda; hdr[1] = (len&0xff00)>>8; hdr[2] = len&0xff; hdrlen = 3; } else { hdr[0] = 0xdb; hdr[1] = (len&0xff000000)>>24; hdr[2] = (len&0xff0000)>>16; hdr[3] = (len&0xff00)>>8; hdr[4] = len&0xff; hdrlen = 5; } mp_buf_append(buf,hdr,hdrlen); mp_buf_append(buf,s,len); } /* we assume IEEE 754 internal format for single and double precision floats. */ static void mp_encode_double(mp_buf *buf, double d) { unsigned char b[9]; float f = d; assert(sizeof(f) == 4 && sizeof(d) == 8); if (d == (double)f) { b[0] = 0xca; /* float IEEE 754 */ memcpy(b+1,&f,4); memrevifle(b+1,4); mp_buf_append(buf,b,5); } else if (sizeof(d) == 8) { b[0] = 0xcb; /* double IEEE 754 */ memcpy(b+1,&d,8); memrevifle(b+1,8); mp_buf_append(buf,b,9); } } static void mp_encode_int(mp_buf *buf, int64_t n) { unsigned char b[9]; int enclen; if (n >= 0) { if (n <= 127) { b[0] = n & 0x7f; /* positive fixnum */ enclen = 1; } else if (n <= 0xff) { b[0] = 0xcc; /* uint 8 */ b[1] = n & 0xff; enclen = 2; } else if (n <= 0xffff) { b[0] = 0xcd; /* uint 16 */ b[1] = (n & 0xff00) >> 8; b[2] = n & 0xff; enclen = 3; } else if (n <= 0xffffffffLL) { b[0] = 0xce; /* uint 32 */ b[1] = (n & 0xff000000) >> 24; b[2] = (n & 0xff0000) >> 16; b[3] = (n & 0xff00) >> 8; b[4] = n & 0xff; enclen = 5; } else { b[0] = 0xcf; /* uint 64 */ b[1] = (n & 0xff00000000000000LL) >> 56; b[2] = (n & 0xff000000000000LL) >> 48; b[3] = (n & 0xff0000000000LL) >> 40; b[4] = (n & 0xff00000000LL) >> 32; b[5] = (n & 0xff000000) >> 24; b[6] = (n & 0xff0000) >> 16; b[7] = (n & 0xff00) >> 8; b[8] = n & 0xff; enclen = 9; } } else { if (n >= -32) { b[0] = ((char)n); /* negative fixnum */ enclen = 1; } else if (n >= -128) { b[0] = 0xd0; /* int 8 */ b[1] = n & 0xff; enclen = 2; } else if (n >= -32768) { b[0] = 0xd1; /* int 16 */ b[1] = (n & 0xff00) >> 8; b[2] = n & 0xff; enclen = 3; } else if (n >= -2147483648LL) { b[0] = 0xd2; /* int 32 */ b[1] = (n & 0xff000000) >> 24; b[2] = (n & 0xff0000) >> 16; b[3] = (n & 0xff00) >> 8; b[4] = n & 0xff; enclen = 5; } else { b[0] = 0xd3; /* int 64 */ b[1] = (n & 0xff00000000000000LL) >> 56; b[2] = (n & 0xff000000000000LL) >> 48; b[3] = (n & 0xff0000000000LL) >> 40; b[4] = (n & 0xff00000000LL) >> 32; b[5] = (n & 0xff000000) >> 24; b[6] = (n & 0xff0000) >> 16; b[7] = (n & 0xff00) >> 8; b[8] = n & 0xff; enclen = 9; } } mp_buf_append(buf,b,enclen); } static void mp_encode_array(mp_buf *buf, int64_t n) { unsigned char b[5]; int enclen; if (n <= 15) { b[0] = 0x90 | (n & 0xf); /* fix array */ enclen = 1; } else if (n <= 65535) { b[0] = 0xdc; /* array 16 */ b[1] = (n & 0xff00) >> 8; b[2] = n & 0xff; enclen = 3; } else { b[0] = 0xdd; /* array 32 */ b[1] = (n & 0xff000000) >> 24; b[2] = (n & 0xff0000) >> 16; b[3] = (n & 0xff00) >> 8; b[4] = n & 0xff; enclen = 5; } mp_buf_append(buf,b,enclen); } static void mp_encode_map(mp_buf *buf, int64_t n) { unsigned char b[5]; int enclen; if (n <= 15) { b[0] = 0x80 | (n & 0xf); /* fix map */ enclen = 1; } else if (n <= 65535) { b[0] = 0xde; /* map 16 */ b[1] = (n & 0xff00) >> 8; b[2] = n & 0xff; enclen = 3; } else { b[0] = 0xdf; /* map 32 */ b[1] = (n & 0xff000000) >> 24; b[2] = (n & 0xff0000) >> 16; b[3] = (n & 0xff00) >> 8; b[4] = n & 0xff; enclen = 5; } mp_buf_append(buf,b,enclen); } /* ----------------------------- Lua types encoding --------------------------- */ static void mp_encode_lua_string(lua_State *L, mp_buf *buf) { size_t len; const char *s; s = lua_tolstring(L,-1,&len); mp_encode_bytes(buf,(const unsigned char*)s,len); } static void mp_encode_lua_bool(lua_State *L, mp_buf *buf) { unsigned char b = lua_toboolean(L,-1) ? 0xc3 : 0xc2; mp_buf_append(buf,&b,1); } static void mp_encode_lua_number(lua_State *L, mp_buf *buf) { lua_Number n = lua_tonumber(L,-1); if (floor(n) != n) { mp_encode_double(buf,(double)n); } else { mp_encode_int(buf,(int64_t)n); } } static void mp_encode_lua_type(lua_State *L, mp_buf *buf, int level); /* Convert a lua table into a message pack list. */ static void mp_encode_lua_table_as_array(lua_State *L, mp_buf *buf, int level) { size_t len = lua_objlen(L,-1), j; mp_encode_array(buf,len); for (j = 1; j <= len; j++) { lua_pushnumber(L,j); lua_gettable(L,-2); mp_encode_lua_type(L,buf,level+1); } } /* Convert a lua table into a message pack key-value map. */ static void mp_encode_lua_table_as_map(lua_State *L, mp_buf *buf, int level) { size_t len = 0; /* First step: count keys into table. No other way to do it with the * Lua API, we need to iterate a first time. Note that an alternative * would be to do a single run, and then hack the buffer to insert the * map opcodes for message pack. Too hachish for this lib. */ lua_pushnil(L); while(lua_next(L,-2)) { lua_pop(L,1); /* remove value, keep key for next iteration. */ len++; } /* Step two: actually encoding of the map. */ mp_encode_map(buf,len); lua_pushnil(L); while(lua_next(L,-2)) { /* Stack: ... key value */ lua_pushvalue(L,-2); /* Stack: ... key value key */ mp_encode_lua_type(L,buf,level+1); /* encode key */ mp_encode_lua_type(L,buf,level+1); /* encode val */ } } /* Returns true if the Lua table on top of the stack is exclusively composed * of keys from numerical keys from 1 up to N, with N being the total number * of elements, without any hole in the middle. */ static int table_is_an_array(lua_State *L) { long count = 0, max = 0, idx = 0; lua_Number n; lua_pushnil(L); while(lua_next(L,-2)) { /* Stack: ... key value */ lua_pop(L,1); /* Stack: ... key */ if (lua_type(L,-1) != LUA_TNUMBER) goto not_array; n = lua_tonumber(L,-1); idx = n; if (idx != n || idx < 1) goto not_array; count++; max = idx; } /* We have the total number of elements in "count". Also we have * the max index encountered in "idx". We can't reach this code * if there are indexes <= 0. If you also note that there can not be * repeated keys into a table, you have that if idx==count you are sure * that there are all the keys form 1 to count (both included). */ return idx == count; not_array: lua_pop(L,1); return 0; } /* If the length operator returns non-zero, that is, there is at least * an object at key '1', we serialize to message pack list. Otherwise * we use a map. */ static void mp_encode_lua_table(lua_State *L, mp_buf *buf, int level) { if (table_is_an_array(L)) mp_encode_lua_table_as_array(L,buf,level); else mp_encode_lua_table_as_map(L,buf,level); } static void mp_encode_lua_null(lua_State *L, mp_buf *buf) { unsigned char b[1]; b[0] = 0xc0; mp_buf_append(buf,b,1); } static void mp_encode_lua_type(lua_State *L, mp_buf *buf, int level) { int t = lua_type(L,-1); /* Limit the encoding of nested tables to a specfiied maximum depth, so that * we survive when called against circular references in tables. */ if (t == LUA_TTABLE && level == LUACMSGPACK_MAX_NESTING) t = LUA_TNIL; switch(t) { case LUA_TSTRING: mp_encode_lua_string(L,buf); break; case LUA_TBOOLEAN: mp_encode_lua_bool(L,buf); break; case LUA_TNUMBER: mp_encode_lua_number(L,buf); break; case LUA_TTABLE: mp_encode_lua_table(L,buf,level); break; default: mp_encode_lua_null(L,buf); break; } lua_pop(L,1); } static int mp_pack(lua_State *L) { mp_buf *buf = mp_buf_new(); mp_encode_lua_type(L,buf,0); lua_pushlstring(L,(char*)buf->b,buf->len); mp_buf_free(buf); return 1; } /* --------------------------------- Decoding --------------------------------- */ void mp_decode_to_lua_type(lua_State *L, mp_cur *c); void mp_decode_to_lua_array(lua_State *L, mp_cur *c, size_t len) { int index = 1; lua_newtable(L); while(len--) { lua_pushnumber(L,index++); mp_decode_to_lua_type(L,c); if (c->err) return; lua_settable(L,-3); } } void mp_decode_to_lua_hash(lua_State *L, mp_cur *c, size_t len) { lua_newtable(L); while(len--) { mp_decode_to_lua_type(L,c); /* key */ if (c->err) return; mp_decode_to_lua_type(L,c); /* value */ if (c->err) return; lua_settable(L,-3); } } /* Decode a Message Pack raw object pointed by the string cursor 'c' to * a Lua type, that is left as the only result on the stack. */ void mp_decode_to_lua_type(lua_State *L, mp_cur *c) { mp_cur_need(c,1); switch(c->p[0]) { case 0xcc: /* uint 8 */ mp_cur_need(c,2); lua_pushnumber(L,c->p[1]); mp_cur_consume(c,2); break; case 0xd0: /* int 8 */ mp_cur_need(c,2); lua_pushnumber(L,(char)c->p[1]); mp_cur_consume(c,2); break; case 0xcd: /* uint 16 */ mp_cur_need(c,3); lua_pushnumber(L, (c->p[1] << 8) | c->p[2]); mp_cur_consume(c,3); break; case 0xd1: /* int 16 */ mp_cur_need(c,3); lua_pushnumber(L,(int16_t) (c->p[1] << 8) | c->p[2]); mp_cur_consume(c,3); break; case 0xce: /* uint 32 */ mp_cur_need(c,5); lua_pushnumber(L, ((uint32_t)c->p[1] << 24) | ((uint32_t)c->p[2] << 16) | ((uint32_t)c->p[3] << 8) | (uint32_t)c->p[4]); mp_cur_consume(c,5); break; case 0xd2: /* int 32 */ mp_cur_need(c,5); lua_pushnumber(L, ((int32_t)c->p[1] << 24) | ((int32_t)c->p[2] << 16) | ((int32_t)c->p[3] << 8) | (int32_t)c->p[4]); mp_cur_consume(c,5); break; case 0xcf: /* uint 64 */ mp_cur_need(c,9); lua_pushnumber(L, ((uint64_t)c->p[1] << 56) | ((uint64_t)c->p[2] << 48) | ((uint64_t)c->p[3] << 40) | ((uint64_t)c->p[4] << 32) | ((uint64_t)c->p[5] << 24) | ((uint64_t)c->p[6] << 16) | ((uint64_t)c->p[7] << 8) | (uint64_t)c->p[8]); mp_cur_consume(c,9); break; case 0xd3: /* int 64 */ mp_cur_need(c,9); lua_pushnumber(L, ((int64_t)c->p[1] << 56) | ((int64_t)c->p[2] << 48) | ((int64_t)c->p[3] << 40) | ((int64_t)c->p[4] << 32) | ((int64_t)c->p[5] << 24) | ((int64_t)c->p[6] << 16) | ((int64_t)c->p[7] << 8) | (int64_t)c->p[8]); mp_cur_consume(c,9); break; case 0xc0: /* nil */ lua_pushnil(L); mp_cur_consume(c,1); break; case 0xc3: /* true */ lua_pushboolean(L,1); mp_cur_consume(c,1); break; case 0xc2: /* false */ lua_pushboolean(L,0); mp_cur_consume(c,1); break; case 0xca: /* float */ mp_cur_need(c,5); assert(sizeof(float) == 4); { float f; memcpy(&f,c->p+1,4); memrevifle(&f,4); lua_pushnumber(L,f); mp_cur_consume(c,5); } break; case 0xcb: /* double */ mp_cur_need(c,9); assert(sizeof(double) == 8); { double d; memcpy(&d,c->p+1,8); memrevifle(&d,8); lua_pushnumber(L,d); mp_cur_consume(c,9); } break; case 0xda: /* raw 16 */ mp_cur_need(c,3); { size_t l = (c->p[1] << 8) | c->p[2]; mp_cur_need(c,3+l); lua_pushlstring(L,(char*)c->p+3,l); mp_cur_consume(c,3+l); } break; case 0xdb: /* raw 32 */ mp_cur_need(c,5); { size_t l = (c->p[1] << 24) | (c->p[2] << 16) | (c->p[3] << 8) | c->p[4]; mp_cur_need(c,5+l); lua_pushlstring(L,(char*)c->p+5,l); mp_cur_consume(c,5+l); } break; case 0xdc: /* array 16 */ mp_cur_need(c,3); { size_t l = (c->p[1] << 8) | c->p[2]; mp_cur_consume(c,3); mp_decode_to_lua_array(L,c,l); } break; case 0xdd: /* array 32 */ mp_cur_need(c,5); { size_t l = (c->p[1] << 24) | (c->p[2] << 16) | (c->p[3] << 8) | c->p[4]; mp_cur_consume(c,5); mp_decode_to_lua_array(L,c,l); } break; case 0xde: /* map 16 */ mp_cur_need(c,3); { size_t l = (c->p[1] << 8) | c->p[2]; mp_cur_consume(c,3); mp_decode_to_lua_hash(L,c,l); } break; case 0xdf: /* map 32 */ mp_cur_need(c,5); { size_t l = (c->p[1] << 24) | (c->p[2] << 16) | (c->p[3] << 8) | c->p[4]; mp_cur_consume(c,5); mp_decode_to_lua_hash(L,c,l); } break; default: /* types that can't be idenitified by first byte value. */ if ((c->p[0] & 0x80) == 0) { /* positive fixnum */ lua_pushnumber(L,c->p[0]); mp_cur_consume(c,1); } else if ((c->p[0] & 0xe0) == 0xe0) { /* negative fixnum */ lua_pushnumber(L,(signed char)c->p[0]); mp_cur_consume(c,1); } else if ((c->p[0] & 0xe0) == 0xa0) { /* fix raw */ size_t l = c->p[0] & 0x1f; mp_cur_need(c,1+l); lua_pushlstring(L,(char*)c->p+1,l); mp_cur_consume(c,1+l); } else if ((c->p[0] & 0xf0) == 0x90) { /* fix map */ size_t l = c->p[0] & 0xf; mp_cur_consume(c,1); mp_decode_to_lua_array(L,c,l); } else if ((c->p[0] & 0xf0) == 0x80) { /* fix map */ size_t l = c->p[0] & 0xf; mp_cur_consume(c,1); mp_decode_to_lua_hash(L,c,l); } else { c->err = MP_CUR_ERROR_BADFMT; } } } static int mp_unpack(lua_State *L) { size_t len; const unsigned char *s; mp_cur *c; if (!lua_isstring(L,-1)) { lua_pushstring(L,"MessagePack decoding needs a string as input."); lua_error(L); } s = (const unsigned char*) lua_tolstring(L,-1,&len); c = mp_cur_new(s,len); mp_decode_to_lua_type(L,c); if (c->err == MP_CUR_ERROR_EOF) { mp_cur_free(c); lua_pushstring(L,"Missing bytes in input."); lua_error(L); } else if (c->err == MP_CUR_ERROR_BADFMT) { mp_cur_free(c); lua_pushstring(L,"Bad data format in input."); lua_error(L); } else if (c->left != 0) { mp_cur_free(c); lua_pushstring(L,"Extra bytes in input."); lua_error(L); } mp_cur_free(c); return 1; } /* ---------------------------------------------------------------------------- */ static const struct luaL_reg thislib[] = { {"pack", mp_pack}, {"unpack", mp_unpack}, {NULL, NULL} }; LUALIB_API int luaopen_cmsgpack (lua_State *L) { luaL_register(L, "cmsgpack", thislib); lua_pushliteral(L, LUACMSGPACK_VERSION); lua_setfield(L, -2, "_VERSION"); lua_pushliteral(L, LUACMSGPACK_COPYRIGHT); lua_setfield(L, -2, "_COPYRIGHT"); lua_pushliteral(L, LUACMSGPACK_DESCRIPTION); lua_setfield(L, -2, "_DESCRIPTION"); return 1; } /****************************************************************************** * Copyright (C) 2012 Salvatore Sanfilippo. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ******************************************************************************/ redis-2.6.16/deps/lua/src/lua_struct.c000066400000000000000000000253611220734223100175530ustar00rootroot00000000000000/* ** {====================================================== ** Library for packing/unpacking structures. ** $Id: struct.c,v 1.4 2012/07/04 18:54:29 roberto Exp $ ** See Copyright Notice at the end of this file ** ======================================================= */ /* ** Valid formats: ** > - big endian ** < - little endian ** ![num] - alignment ** x - pading ** b/B - signed/unsigned byte ** h/H - signed/unsigned short ** l/L - signed/unsigned long ** T - size_t ** i/In - signed/unsigned integer with size `n' (default is size of int) ** cn - sequence of `n' chars (from/to a string); when packing, n==0 means the whole string; when unpacking, n==0 means use the previous read number as the string length ** s - zero-terminated string ** f - float ** d - double ** ' ' - ignored */ #include #include #include #include #include #include "lua.h" #include "lauxlib.h" #if (LUA_VERSION_NUM >= 502) #define luaL_register(L,n,f) luaL_newlib(L,f) #endif /* basic integer type */ #if !defined(STRUCT_INT) #define STRUCT_INT long #endif typedef STRUCT_INT Inttype; /* corresponding unsigned version */ typedef unsigned STRUCT_INT Uinttype; /* maximum size (in bytes) for integral types */ #define MAXINTSIZE 32 /* is 'x' a power of 2? */ #define isp2(x) ((x) > 0 && ((x) & ((x) - 1)) == 0) /* dummy structure to get alignment requirements */ struct cD { char c; double d; }; #define PADDING (sizeof(struct cD) - sizeof(double)) #define MAXALIGN (PADDING > sizeof(int) ? PADDING : sizeof(int)) /* endian options */ #define BIG 0 #define LITTLE 1 static union { int dummy; char endian; } const native = {1}; typedef struct Header { int endian; int align; } Header; static int getnum (const char **fmt, int df) { if (!isdigit(**fmt)) /* no number? */ return df; /* return default value */ else { int a = 0; do { a = a*10 + *((*fmt)++) - '0'; } while (isdigit(**fmt)); return a; } } #define defaultoptions(h) ((h)->endian = native.endian, (h)->align = 1) static size_t optsize (lua_State *L, char opt, const char **fmt) { switch (opt) { case 'B': case 'b': return sizeof(char); case 'H': case 'h': return sizeof(short); case 'L': case 'l': return sizeof(long); case 'T': return sizeof(size_t); case 'f': return sizeof(float); case 'd': return sizeof(double); case 'x': return 1; case 'c': return getnum(fmt, 1); case 'i': case 'I': { int sz = getnum(fmt, sizeof(int)); if (sz > MAXINTSIZE) luaL_error(L, "integral size %d is larger than limit of %d", sz, MAXINTSIZE); return sz; } default: return 0; /* other cases do not need alignment */ } } /* ** return number of bytes needed to align an element of size 'size' ** at current position 'len' */ static int gettoalign (size_t len, Header *h, int opt, size_t size) { if (size == 0 || opt == 'c') return 0; if (size > (size_t)h->align) size = h->align; /* respect max. alignment */ return (size - (len & (size - 1))) & (size - 1); } /* ** options to control endianess and alignment */ static void controloptions (lua_State *L, int opt, const char **fmt, Header *h) { switch (opt) { case ' ': return; /* ignore white spaces */ case '>': h->endian = BIG; return; case '<': h->endian = LITTLE; return; case '!': { int a = getnum(fmt, MAXALIGN); if (!isp2(a)) luaL_error(L, "alignment %d is not a power of 2", a); h->align = a; return; } default: { const char *msg = lua_pushfstring(L, "invalid format option '%c'", opt); luaL_argerror(L, 1, msg); } } } static void putinteger (lua_State *L, luaL_Buffer *b, int arg, int endian, int size) { lua_Number n = luaL_checknumber(L, arg); Uinttype value; char buff[MAXINTSIZE]; if (n < 0) value = (Uinttype)(Inttype)n; else value = (Uinttype)n; if (endian == LITTLE) { int i; for (i = 0; i < size; i++) { buff[i] = (value & 0xff); value >>= 8; } } else { int i; for (i = size - 1; i >= 0; i--) { buff[i] = (value & 0xff); value >>= 8; } } luaL_addlstring(b, buff, size); } static void correctbytes (char *b, int size, int endian) { if (endian != native.endian) { int i = 0; while (i < --size) { char temp = b[i]; b[i++] = b[size]; b[size] = temp; } } } static int b_pack (lua_State *L) { luaL_Buffer b; const char *fmt = luaL_checkstring(L, 1); Header h; int arg = 2; size_t totalsize = 0; defaultoptions(&h); lua_pushnil(L); /* mark to separate arguments from string buffer */ luaL_buffinit(L, &b); while (*fmt != '\0') { int opt = *fmt++; size_t size = optsize(L, opt, &fmt); int toalign = gettoalign(totalsize, &h, opt, size); totalsize += toalign; while (toalign-- > 0) luaL_addchar(&b, '\0'); switch (opt) { case 'b': case 'B': case 'h': case 'H': case 'l': case 'L': case 'T': case 'i': case 'I': { /* integer types */ putinteger(L, &b, arg++, h.endian, size); break; } case 'x': { luaL_addchar(&b, '\0'); break; } case 'f': { float f = (float)luaL_checknumber(L, arg++); correctbytes((char *)&f, size, h.endian); luaL_addlstring(&b, (char *)&f, size); break; } case 'd': { double d = luaL_checknumber(L, arg++); correctbytes((char *)&d, size, h.endian); luaL_addlstring(&b, (char *)&d, size); break; } case 'c': case 's': { size_t l; const char *s = luaL_checklstring(L, arg++, &l); if (size == 0) size = l; luaL_argcheck(L, l >= (size_t)size, arg, "string too short"); luaL_addlstring(&b, s, size); if (opt == 's') { luaL_addchar(&b, '\0'); /* add zero at the end */ size++; } break; } default: controloptions(L, opt, &fmt, &h); } totalsize += size; } luaL_pushresult(&b); return 1; } static lua_Number getinteger (const char *buff, int endian, int issigned, int size) { Uinttype l = 0; int i; if (endian == BIG) { for (i = 0; i < size; i++) { l <<= 8; l |= (Uinttype)(unsigned char)buff[i]; } } else { for (i = size - 1; i >= 0; i--) { l <<= 8; l |= (Uinttype)(unsigned char)buff[i]; } } if (!issigned) return (lua_Number)l; else { /* signed format */ Uinttype mask = (Uinttype)(~((Uinttype)0)) << (size*8 - 1); if (l & mask) /* negative value? */ l |= mask; /* signal extension */ return (lua_Number)(Inttype)l; } } static int b_unpack (lua_State *L) { Header h; const char *fmt = luaL_checkstring(L, 1); size_t ld; const char *data = luaL_checklstring(L, 2, &ld); size_t pos = luaL_optinteger(L, 3, 1) - 1; defaultoptions(&h); lua_settop(L, 2); while (*fmt) { int opt = *fmt++; size_t size = optsize(L, opt, &fmt); pos += gettoalign(pos, &h, opt, size); luaL_argcheck(L, pos+size <= ld, 2, "data string too short"); luaL_checkstack(L, 1, "too many results"); switch (opt) { case 'b': case 'B': case 'h': case 'H': case 'l': case 'L': case 'T': case 'i': case 'I': { /* integer types */ int issigned = islower(opt); lua_Number res = getinteger(data+pos, h.endian, issigned, size); lua_pushnumber(L, res); break; } case 'x': { break; } case 'f': { float f; memcpy(&f, data+pos, size); correctbytes((char *)&f, sizeof(f), h.endian); lua_pushnumber(L, f); break; } case 'd': { double d; memcpy(&d, data+pos, size); correctbytes((char *)&d, sizeof(d), h.endian); lua_pushnumber(L, d); break; } case 'c': { if (size == 0) { if (!lua_isnumber(L, -1)) luaL_error(L, "format `c0' needs a previous size"); size = lua_tonumber(L, -1); lua_pop(L, 1); luaL_argcheck(L, pos+size <= ld, 2, "data string too short"); } lua_pushlstring(L, data+pos, size); break; } case 's': { const char *e = (const char *)memchr(data+pos, '\0', ld - pos); if (e == NULL) luaL_error(L, "unfinished string in data"); size = (e - (data+pos)) + 1; lua_pushlstring(L, data+pos, size - 1); break; } default: controloptions(L, opt, &fmt, &h); } pos += size; } lua_pushinteger(L, pos + 1); return lua_gettop(L) - 2; } static int b_size (lua_State *L) { Header h; const char *fmt = luaL_checkstring(L, 1); size_t pos = 0; defaultoptions(&h); while (*fmt) { int opt = *fmt++; size_t size = optsize(L, opt, &fmt); pos += gettoalign(pos, &h, opt, size); if (opt == 's') luaL_argerror(L, 1, "option 's' has no fixed size"); else if (opt == 'c' && size == 0) luaL_argerror(L, 1, "option 'c0' has no fixed size"); if (!isalnum(opt)) controloptions(L, opt, &fmt, &h); pos += size; } lua_pushinteger(L, pos); return 1; } /* }====================================================== */ static const struct luaL_Reg thislib[] = { {"pack", b_pack}, {"unpack", b_unpack}, {"size", b_size}, {NULL, NULL} }; LUALIB_API int luaopen_struct (lua_State *L); LUALIB_API int luaopen_struct (lua_State *L) { luaL_register(L, "struct", thislib); return 1; } /****************************************************************************** * Copyright (C) 2010-2012 Lua.org, PUC-Rio. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ******************************************************************************/ redis-2.6.16/deps/lua/src/luac.c000066400000000000000000000110651220734223100163060ustar00rootroot00000000000000/* ** $Id: luac.c,v 1.54 2006/06/02 17:37:11 lhf Exp $ ** Lua compiler (saves bytecodes to files; also list bytecodes) ** See Copyright Notice in lua.h */ #include #include #include #include #define luac_c #define LUA_CORE #include "lua.h" #include "lauxlib.h" #include "ldo.h" #include "lfunc.h" #include "lmem.h" #include "lobject.h" #include "lopcodes.h" #include "lstring.h" #include "lundump.h" #define PROGNAME "luac" /* default program name */ #define OUTPUT PROGNAME ".out" /* default output file */ static int listing=0; /* list bytecodes? */ static int dumping=1; /* dump bytecodes? */ static int stripping=0; /* strip debug information? */ static char Output[]={ OUTPUT }; /* default output file name */ static const char* output=Output; /* actual output file name */ static const char* progname=PROGNAME; /* actual program name */ static void fatal(const char* message) { fprintf(stderr,"%s: %s\n",progname,message); exit(EXIT_FAILURE); } static void cannot(const char* what) { fprintf(stderr,"%s: cannot %s %s: %s\n",progname,what,output,strerror(errno)); exit(EXIT_FAILURE); } static void usage(const char* message) { if (*message=='-') fprintf(stderr,"%s: unrecognized option " LUA_QS "\n",progname,message); else fprintf(stderr,"%s: %s\n",progname,message); fprintf(stderr, "usage: %s [options] [filenames].\n" "Available options are:\n" " - process stdin\n" " -l list\n" " -o name output to file " LUA_QL("name") " (default is \"%s\")\n" " -p parse only\n" " -s strip debug information\n" " -v show version information\n" " -- stop handling options\n", progname,Output); exit(EXIT_FAILURE); } #define IS(s) (strcmp(argv[i],s)==0) static int doargs(int argc, char* argv[]) { int i; int version=0; if (argv[0]!=NULL && *argv[0]!=0) progname=argv[0]; for (i=1; itop+(i))->l.p) static const Proto* combine(lua_State* L, int n) { if (n==1) return toproto(L,-1); else { int i,pc; Proto* f=luaF_newproto(L); setptvalue2s(L,L->top,f); incr_top(L); f->source=luaS_newliteral(L,"=(" PROGNAME ")"); f->maxstacksize=1; pc=2*n+1; f->code=luaM_newvector(L,pc,Instruction); f->sizecode=pc; f->p=luaM_newvector(L,n,Proto*); f->sizep=n; pc=0; for (i=0; ip[i]=toproto(L,i-n-1); f->code[pc++]=CREATE_ABx(OP_CLOSURE,0,i); f->code[pc++]=CREATE_ABC(OP_CALL,0,1,1); } f->code[pc++]=CREATE_ABC(OP_RETURN,0,1,0); return f; } } static int writer(lua_State* L, const void* p, size_t size, void* u) { UNUSED(L); return (fwrite(p,size,1,(FILE*)u)!=1) && (size!=0); } struct Smain { int argc; char** argv; }; static int pmain(lua_State* L) { struct Smain* s = (struct Smain*)lua_touserdata(L, 1); int argc=s->argc; char** argv=s->argv; const Proto* f; int i; if (!lua_checkstack(L,argc)) fatal("too many input files"); for (i=0; i1); if (dumping) { FILE* D= (output==NULL) ? stdout : fopen(output,"wb"); if (D==NULL) cannot("open"); lua_lock(L); luaU_dump(L,f,writer,D,stripping); lua_unlock(L); if (ferror(D)) cannot("write"); if (fclose(D)) cannot("close"); } return 0; } int main(int argc, char* argv[]) { lua_State* L; struct Smain s; int i=doargs(argc,argv); argc-=i; argv+=i; if (argc<=0) usage("no input files given"); L=lua_open(); if (L==NULL) fatal("not enough memory for state"); s.argc=argc; s.argv=argv; if (lua_cpcall(L,pmain,&s)!=0) fatal(lua_tostring(L,-1)); lua_close(L); return EXIT_SUCCESS; } redis-2.6.16/deps/lua/src/luaconf.h000066400000000000000000000534331220734223100170230ustar00rootroot00000000000000/* ** $Id: luaconf.h,v 1.82.1.7 2008/02/11 16:25:08 roberto Exp $ ** Configuration file for Lua ** See Copyright Notice in lua.h */ #ifndef lconfig_h #define lconfig_h #include #include /* ** ================================================================== ** Search for "@@" to find all configurable definitions. ** =================================================================== */ /* @@ LUA_ANSI controls the use of non-ansi features. ** CHANGE it (define it) if you want Lua to avoid the use of any ** non-ansi feature or library. */ #if defined(__STRICT_ANSI__) #define LUA_ANSI #endif #if !defined(LUA_ANSI) && defined(_WIN32) #define LUA_WIN #endif #if defined(LUA_USE_LINUX) #define LUA_USE_POSIX #define LUA_USE_DLOPEN /* needs an extra library: -ldl */ #define LUA_USE_READLINE /* needs some extra libraries */ #endif #if defined(LUA_USE_MACOSX) #define LUA_USE_POSIX #define LUA_DL_DYLD /* does not need extra library */ #endif /* @@ LUA_USE_POSIX includes all functionallity listed as X/Open System @* Interfaces Extension (XSI). ** CHANGE it (define it) if your system is XSI compatible. */ #if defined(LUA_USE_POSIX) #define LUA_USE_MKSTEMP #define LUA_USE_ISATTY #define LUA_USE_POPEN #define LUA_USE_ULONGJMP #endif /* @@ LUA_PATH and LUA_CPATH are the names of the environment variables that @* Lua check to set its paths. @@ LUA_INIT is the name of the environment variable that Lua @* checks for initialization code. ** CHANGE them if you want different names. */ #define LUA_PATH "LUA_PATH" #define LUA_CPATH "LUA_CPATH" #define LUA_INIT "LUA_INIT" /* @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for @* Lua libraries. @@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for @* C libraries. ** CHANGE them if your machine has a non-conventional directory ** hierarchy or if you want to install your libraries in ** non-conventional directories. */ #if defined(_WIN32) /* ** In Windows, any exclamation mark ('!') in the path is replaced by the ** path of the directory of the executable file of the current process. */ #define LUA_LDIR "!\\lua\\" #define LUA_CDIR "!\\" #define LUA_PATH_DEFAULT \ ".\\?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua" #define LUA_CPATH_DEFAULT \ ".\\?.dll;" LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll" #else #define LUA_ROOT "/usr/local/" #define LUA_LDIR LUA_ROOT "share/lua/5.1/" #define LUA_CDIR LUA_ROOT "lib/lua/5.1/" #define LUA_PATH_DEFAULT \ "./?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua" #define LUA_CPATH_DEFAULT \ "./?.so;" LUA_CDIR"?.so;" LUA_CDIR"loadall.so" #endif /* @@ LUA_DIRSEP is the directory separator (for submodules). ** CHANGE it if your machine does not use "/" as the directory separator ** and is not Windows. (On Windows Lua automatically uses "\".) */ #if defined(_WIN32) #define LUA_DIRSEP "\\" #else #define LUA_DIRSEP "/" #endif /* @@ LUA_PATHSEP is the character that separates templates in a path. @@ LUA_PATH_MARK is the string that marks the substitution points in a @* template. @@ LUA_EXECDIR in a Windows path is replaced by the executable's @* directory. @@ LUA_IGMARK is a mark to ignore all before it when bulding the @* luaopen_ function name. ** CHANGE them if for some reason your system cannot use those ** characters. (E.g., if one of those characters is a common character ** in file/directory names.) Probably you do not need to change them. */ #define LUA_PATHSEP ";" #define LUA_PATH_MARK "?" #define LUA_EXECDIR "!" #define LUA_IGMARK "-" /* @@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger. ** CHANGE that if ptrdiff_t is not adequate on your machine. (On most ** machines, ptrdiff_t gives a good choice between int or long.) */ #define LUA_INTEGER ptrdiff_t /* @@ LUA_API is a mark for all core API functions. @@ LUALIB_API is a mark for all standard library functions. ** CHANGE them if you need to define those functions in some special way. ** For instance, if you want to create one Windows DLL with the core and ** the libraries, you may want to use the following definition (define ** LUA_BUILD_AS_DLL to get it). */ #if defined(LUA_BUILD_AS_DLL) #if defined(LUA_CORE) || defined(LUA_LIB) #define LUA_API __declspec(dllexport) #else #define LUA_API __declspec(dllimport) #endif #else #define LUA_API extern #endif /* more often than not the libs go together with the core */ #define LUALIB_API LUA_API /* @@ LUAI_FUNC is a mark for all extern functions that are not to be @* exported to outside modules. @@ LUAI_DATA is a mark for all extern (const) variables that are not to @* be exported to outside modules. ** CHANGE them if you need to mark them in some special way. Elf/gcc ** (versions 3.2 and later) mark them as "hidden" to optimize access ** when Lua is compiled as a shared library. */ #if defined(luaall_c) #define LUAI_FUNC static #define LUAI_DATA /* empty */ #elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \ defined(__ELF__) #define LUAI_FUNC __attribute__((visibility("hidden"))) extern #define LUAI_DATA LUAI_FUNC #else #define LUAI_FUNC extern #define LUAI_DATA extern #endif /* @@ LUA_QL describes how error messages quote program elements. ** CHANGE it if you want a different appearance. */ #define LUA_QL(x) "'" x "'" #define LUA_QS LUA_QL("%s") /* @@ LUA_IDSIZE gives the maximum size for the description of the source @* of a function in debug information. ** CHANGE it if you want a different size. */ #define LUA_IDSIZE 60 /* ** {================================================================== ** Stand-alone configuration ** =================================================================== */ #if defined(lua_c) || defined(luaall_c) /* @@ lua_stdin_is_tty detects whether the standard input is a 'tty' (that @* is, whether we're running lua interactively). ** CHANGE it if you have a better definition for non-POSIX/non-Windows ** systems. */ #if defined(LUA_USE_ISATTY) #include #define lua_stdin_is_tty() isatty(0) #elif defined(LUA_WIN) #include #include #define lua_stdin_is_tty() _isatty(_fileno(stdin)) #else #define lua_stdin_is_tty() 1 /* assume stdin is a tty */ #endif /* @@ LUA_PROMPT is the default prompt used by stand-alone Lua. @@ LUA_PROMPT2 is the default continuation prompt used by stand-alone Lua. ** CHANGE them if you want different prompts. (You can also change the ** prompts dynamically, assigning to globals _PROMPT/_PROMPT2.) */ #define LUA_PROMPT "> " #define LUA_PROMPT2 ">> " /* @@ LUA_PROGNAME is the default name for the stand-alone Lua program. ** CHANGE it if your stand-alone interpreter has a different name and ** your system is not able to detect that name automatically. */ #define LUA_PROGNAME "lua" /* @@ LUA_MAXINPUT is the maximum length for an input line in the @* stand-alone interpreter. ** CHANGE it if you need longer lines. */ #define LUA_MAXINPUT 512 /* @@ lua_readline defines how to show a prompt and then read a line from @* the standard input. @@ lua_saveline defines how to "save" a read line in a "history". @@ lua_freeline defines how to free a line read by lua_readline. ** CHANGE them if you want to improve this functionality (e.g., by using ** GNU readline and history facilities). */ #if defined(LUA_USE_READLINE) #include #include #include #define lua_readline(L,b,p) ((void)L, ((b)=readline(p)) != NULL) #define lua_saveline(L,idx) \ if (lua_strlen(L,idx) > 0) /* non-empty line? */ \ add_history(lua_tostring(L, idx)); /* add it to history */ #define lua_freeline(L,b) ((void)L, free(b)) #else #define lua_readline(L,b,p) \ ((void)L, fputs(p, stdout), fflush(stdout), /* show prompt */ \ fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */ #define lua_saveline(L,idx) { (void)L; (void)idx; } #define lua_freeline(L,b) { (void)L; (void)b; } #endif #endif /* }================================================================== */ /* @@ LUAI_GCPAUSE defines the default pause between garbage-collector cycles @* as a percentage. ** CHANGE it if you want the GC to run faster or slower (higher values ** mean larger pauses which mean slower collection.) You can also change ** this value dynamically. */ #define LUAI_GCPAUSE 200 /* 200% (wait memory to double before next GC) */ /* @@ LUAI_GCMUL defines the default speed of garbage collection relative to @* memory allocation as a percentage. ** CHANGE it if you want to change the granularity of the garbage ** collection. (Higher values mean coarser collections. 0 represents ** infinity, where each step performs a full collection.) You can also ** change this value dynamically. */ #define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */ /* @@ LUA_COMPAT_GETN controls compatibility with old getn behavior. ** CHANGE it (define it) if you want exact compatibility with the ** behavior of setn/getn in Lua 5.0. */ #undef LUA_COMPAT_GETN /* @@ LUA_COMPAT_LOADLIB controls compatibility about global loadlib. ** CHANGE it to undefined as soon as you do not need a global 'loadlib' ** function (the function is still available as 'package.loadlib'). */ #undef LUA_COMPAT_LOADLIB /* @@ LUA_COMPAT_VARARG controls compatibility with old vararg feature. ** CHANGE it to undefined as soon as your programs use only '...' to ** access vararg parameters (instead of the old 'arg' table). */ #define LUA_COMPAT_VARARG /* @@ LUA_COMPAT_MOD controls compatibility with old math.mod function. ** CHANGE it to undefined as soon as your programs use 'math.fmod' or ** the new '%' operator instead of 'math.mod'. */ #define LUA_COMPAT_MOD /* @@ LUA_COMPAT_LSTR controls compatibility with old long string nesting @* facility. ** CHANGE it to 2 if you want the old behaviour, or undefine it to turn ** off the advisory error when nesting [[...]]. */ #define LUA_COMPAT_LSTR 1 /* @@ LUA_COMPAT_GFIND controls compatibility with old 'string.gfind' name. ** CHANGE it to undefined as soon as you rename 'string.gfind' to ** 'string.gmatch'. */ #define LUA_COMPAT_GFIND /* @@ LUA_COMPAT_OPENLIB controls compatibility with old 'luaL_openlib' @* behavior. ** CHANGE it to undefined as soon as you replace to 'luaL_register' ** your uses of 'luaL_openlib' */ #define LUA_COMPAT_OPENLIB /* @@ luai_apicheck is the assert macro used by the Lua-C API. ** CHANGE luai_apicheck if you want Lua to perform some checks in the ** parameters it gets from API calls. This may slow down the interpreter ** a bit, but may be quite useful when debugging C code that interfaces ** with Lua. A useful redefinition is to use assert.h. */ #if defined(LUA_USE_APICHECK) #include #define luai_apicheck(L,o) { (void)L; assert(o); } #else #define luai_apicheck(L,o) { (void)L; } #endif /* @@ LUAI_BITSINT defines the number of bits in an int. ** CHANGE here if Lua cannot automatically detect the number of bits of ** your machine. Probably you do not need to change this. */ /* avoid overflows in comparison */ #if INT_MAX-20 < 32760 #define LUAI_BITSINT 16 #elif INT_MAX > 2147483640L /* int has at least 32 bits */ #define LUAI_BITSINT 32 #else #error "you must define LUA_BITSINT with number of bits in an integer" #endif /* @@ LUAI_UINT32 is an unsigned integer with at least 32 bits. @@ LUAI_INT32 is an signed integer with at least 32 bits. @@ LUAI_UMEM is an unsigned integer big enough to count the total @* memory used by Lua. @@ LUAI_MEM is a signed integer big enough to count the total memory @* used by Lua. ** CHANGE here if for some weird reason the default definitions are not ** good enough for your machine. (The definitions in the 'else' ** part always works, but may waste space on machines with 64-bit ** longs.) Probably you do not need to change this. */ #if LUAI_BITSINT >= 32 #define LUAI_UINT32 unsigned int #define LUAI_INT32 int #define LUAI_MAXINT32 INT_MAX #define LUAI_UMEM size_t #define LUAI_MEM ptrdiff_t #else /* 16-bit ints */ #define LUAI_UINT32 unsigned long #define LUAI_INT32 long #define LUAI_MAXINT32 LONG_MAX #define LUAI_UMEM unsigned long #define LUAI_MEM long #endif /* @@ LUAI_MAXCALLS limits the number of nested calls. ** CHANGE it if you need really deep recursive calls. This limit is ** arbitrary; its only purpose is to stop infinite recursion before ** exhausting memory. */ #define LUAI_MAXCALLS 20000 /* @@ LUAI_MAXCSTACK limits the number of Lua stack slots that a C function @* can use. ** CHANGE it if you need lots of (Lua) stack space for your C ** functions. This limit is arbitrary; its only purpose is to stop C ** functions to consume unlimited stack space. (must be smaller than ** -LUA_REGISTRYINDEX) */ #define LUAI_MAXCSTACK 8000 /* ** {================================================================== ** CHANGE (to smaller values) the following definitions if your system ** has a small C stack. (Or you may want to change them to larger ** values if your system has a large C stack and these limits are ** too rigid for you.) Some of these constants control the size of ** stack-allocated arrays used by the compiler or the interpreter, while ** others limit the maximum number of recursive calls that the compiler ** or the interpreter can perform. Values too large may cause a C stack ** overflow for some forms of deep constructs. ** =================================================================== */ /* @@ LUAI_MAXCCALLS is the maximum depth for nested C calls (short) and @* syntactical nested non-terminals in a program. */ #define LUAI_MAXCCALLS 200 /* @@ LUAI_MAXVARS is the maximum number of local variables per function @* (must be smaller than 250). */ #define LUAI_MAXVARS 200 /* @@ LUAI_MAXUPVALUES is the maximum number of upvalues per function @* (must be smaller than 250). */ #define LUAI_MAXUPVALUES 60 /* @@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. */ #define LUAL_BUFFERSIZE BUFSIZ /* }================================================================== */ /* ** {================================================================== @@ LUA_NUMBER is the type of numbers in Lua. ** CHANGE the following definitions only if you want to build Lua ** with a number type different from double. You may also need to ** change lua_number2int & lua_number2integer. ** =================================================================== */ #define LUA_NUMBER_DOUBLE #define LUA_NUMBER double /* @@ LUAI_UACNUMBER is the result of an 'usual argument conversion' @* over a number. */ #define LUAI_UACNUMBER double /* @@ LUA_NUMBER_SCAN is the format for reading numbers. @@ LUA_NUMBER_FMT is the format for writing numbers. @@ lua_number2str converts a number to a string. @@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. @@ lua_str2number converts a string to a number. */ #define LUA_NUMBER_SCAN "%lf" #define LUA_NUMBER_FMT "%.14g" #define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n)) #define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */ #define lua_str2number(s,p) strtod((s), (p)) /* @@ The luai_num* macros define the primitive operations over numbers. */ #if defined(LUA_CORE) #include #define luai_numadd(a,b) ((a)+(b)) #define luai_numsub(a,b) ((a)-(b)) #define luai_nummul(a,b) ((a)*(b)) #define luai_numdiv(a,b) ((a)/(b)) #define luai_nummod(a,b) ((a) - floor((a)/(b))*(b)) #define luai_numpow(a,b) (pow(a,b)) #define luai_numunm(a) (-(a)) #define luai_numeq(a,b) ((a)==(b)) #define luai_numlt(a,b) ((a)<(b)) #define luai_numle(a,b) ((a)<=(b)) #define luai_numisnan(a) (!luai_numeq((a), (a))) #endif /* @@ lua_number2int is a macro to convert lua_Number to int. @@ lua_number2integer is a macro to convert lua_Number to lua_Integer. ** CHANGE them if you know a faster way to convert a lua_Number to ** int (with any rounding method and without throwing errors) in your ** system. In Pentium machines, a naive typecast from double to int ** in C is extremely slow, so any alternative is worth trying. */ /* On a Pentium, resort to a trick */ #if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \ (defined(__i386) || defined (_M_IX86) || defined(__i386__)) /* On a Microsoft compiler, use assembler */ #if defined(_MSC_VER) #define lua_number2int(i,d) __asm fld d __asm fistp i #define lua_number2integer(i,n) lua_number2int(i, n) /* the next trick should work on any Pentium, but sometimes clashes with a DirectX idiosyncrasy */ #else union luai_Cast { double l_d; long l_l; }; #define lua_number2int(i,d) \ { volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; } #define lua_number2integer(i,n) lua_number2int(i, n) #endif /* this option always works, but may be slow */ #else #define lua_number2int(i,d) ((i)=(int)(d)) #define lua_number2integer(i,d) ((i)=(lua_Integer)(d)) #endif /* }================================================================== */ /* @@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment. ** CHANGE it if your system requires alignments larger than double. (For ** instance, if your system supports long doubles and they must be ** aligned in 16-byte boundaries, then you should add long double in the ** union.) Probably you do not need to change this. */ #define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; } /* @@ LUAI_THROW/LUAI_TRY define how Lua does exception handling. ** CHANGE them if you prefer to use longjmp/setjmp even with C++ ** or if want/don't to use _longjmp/_setjmp instead of regular ** longjmp/setjmp. By default, Lua handles errors with exceptions when ** compiling as C++ code, with _longjmp/_setjmp when asked to use them, ** and with longjmp/setjmp otherwise. */ #if defined(__cplusplus) /* C++ exceptions */ #define LUAI_THROW(L,c) throw(c) #define LUAI_TRY(L,c,a) try { a } catch(...) \ { if ((c)->status == 0) (c)->status = -1; } #define luai_jmpbuf int /* dummy variable */ #elif defined(LUA_USE_ULONGJMP) /* in Unix, try _longjmp/_setjmp (more efficient) */ #define LUAI_THROW(L,c) _longjmp((c)->b, 1) #define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a } #define luai_jmpbuf jmp_buf #else /* default handling with long jumps */ #define LUAI_THROW(L,c) longjmp((c)->b, 1) #define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a } #define luai_jmpbuf jmp_buf #endif /* @@ LUA_MAXCAPTURES is the maximum number of captures that a pattern @* can do during pattern-matching. ** CHANGE it if you need more captures. This limit is arbitrary. */ #define LUA_MAXCAPTURES 32 /* @@ lua_tmpnam is the function that the OS library uses to create a @* temporary name. @@ LUA_TMPNAMBUFSIZE is the maximum size of a name created by lua_tmpnam. ** CHANGE them if you have an alternative to tmpnam (which is considered ** insecure) or if you want the original tmpnam anyway. By default, Lua ** uses tmpnam except when POSIX is available, where it uses mkstemp. */ #if defined(loslib_c) || defined(luaall_c) #if defined(LUA_USE_MKSTEMP) #include #define LUA_TMPNAMBUFSIZE 32 #define lua_tmpnam(b,e) { \ strcpy(b, "/tmp/lua_XXXXXX"); \ e = mkstemp(b); \ if (e != -1) close(e); \ e = (e == -1); } #else #define LUA_TMPNAMBUFSIZE L_tmpnam #define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); } #endif #endif /* @@ lua_popen spawns a new process connected to the current one through @* the file streams. ** CHANGE it if you have a way to implement it in your system. */ #if defined(LUA_USE_POPEN) #define lua_popen(L,c,m) ((void)L, fflush(NULL), popen(c,m)) #define lua_pclose(L,file) ((void)L, (pclose(file) != -1)) #elif defined(LUA_WIN) #define lua_popen(L,c,m) ((void)L, _popen(c,m)) #define lua_pclose(L,file) ((void)L, (_pclose(file) != -1)) #else #define lua_popen(L,c,m) ((void)((void)c, m), \ luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0) #define lua_pclose(L,file) ((void)((void)L, file), 0) #endif /* @@ LUA_DL_* define which dynamic-library system Lua should use. ** CHANGE here if Lua has problems choosing the appropriate ** dynamic-library system for your platform (either Windows' DLL, Mac's ** dyld, or Unix's dlopen). If your system is some kind of Unix, there ** is a good chance that it has dlopen, so LUA_DL_DLOPEN will work for ** it. To use dlopen you also need to adapt the src/Makefile (probably ** adding -ldl to the linker options), so Lua does not select it ** automatically. (When you change the makefile to add -ldl, you must ** also add -DLUA_USE_DLOPEN.) ** If you do not want any kind of dynamic library, undefine all these ** options. ** By default, _WIN32 gets LUA_DL_DLL and MAC OS X gets LUA_DL_DYLD. */ #if defined(LUA_USE_DLOPEN) #define LUA_DL_DLOPEN #endif #if defined(LUA_WIN) #define LUA_DL_DLL #endif /* @@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State @* (the data goes just *before* the lua_State pointer). ** CHANGE (define) this if you really need that. This value must be ** a multiple of the maximum alignment required for your machine. */ #define LUAI_EXTRASPACE 0 /* @@ luai_userstate* allow user-specific actions on threads. ** CHANGE them if you defined LUAI_EXTRASPACE and need to do something ** extra when a thread is created/deleted/resumed/yielded. */ #define luai_userstateopen(L) ((void)L) #define luai_userstateclose(L) ((void)L) #define luai_userstatethread(L,L1) ((void)L) #define luai_userstatefree(L) ((void)L) #define luai_userstateresume(L,n) ((void)L) #define luai_userstateyield(L,n) ((void)L) /* @@ LUA_INTFRMLEN is the length modifier for integer conversions @* in 'string.format'. @@ LUA_INTFRM_T is the integer type correspoding to the previous length @* modifier. ** CHANGE them if your system supports long long or does not support long. */ #if defined(LUA_USELONGLONG) #define LUA_INTFRMLEN "ll" #define LUA_INTFRM_T long long #else #define LUA_INTFRMLEN "l" #define LUA_INTFRM_T long #endif /* =================================================================== */ /* ** Local configuration. You can use this space to add your redefinitions ** without modifying the main part of the file. */ #endif redis-2.6.16/deps/lua/src/lualib.h000066400000000000000000000020021220734223100166260ustar00rootroot00000000000000/* ** $Id: lualib.h,v 1.36.1.1 2007/12/27 13:02:25 roberto Exp $ ** Lua standard libraries ** See Copyright Notice in lua.h */ #ifndef lualib_h #define lualib_h #include "lua.h" /* Key to file-handle type */ #define LUA_FILEHANDLE "FILE*" #define LUA_COLIBNAME "coroutine" LUALIB_API int (luaopen_base) (lua_State *L); #define LUA_TABLIBNAME "table" LUALIB_API int (luaopen_table) (lua_State *L); #define LUA_IOLIBNAME "io" LUALIB_API int (luaopen_io) (lua_State *L); #define LUA_OSLIBNAME "os" LUALIB_API int (luaopen_os) (lua_State *L); #define LUA_STRLIBNAME "string" LUALIB_API int (luaopen_string) (lua_State *L); #define LUA_MATHLIBNAME "math" LUALIB_API int (luaopen_math) (lua_State *L); #define LUA_DBLIBNAME "debug" LUALIB_API int (luaopen_debug) (lua_State *L); #define LUA_LOADLIBNAME "package" LUALIB_API int (luaopen_package) (lua_State *L); /* open all previous libraries */ LUALIB_API void (luaL_openlibs) (lua_State *L); #ifndef lua_assert #define lua_assert(x) ((void)0) #endif #endif redis-2.6.16/deps/lua/src/lundump.c000066400000000000000000000110251220734223100170420ustar00rootroot00000000000000/* ** $Id: lundump.c,v 2.7.1.4 2008/04/04 19:51:41 roberto Exp $ ** load precompiled Lua chunks ** See Copyright Notice in lua.h */ #include #define lundump_c #define LUA_CORE #include "lua.h" #include "ldebug.h" #include "ldo.h" #include "lfunc.h" #include "lmem.h" #include "lobject.h" #include "lstring.h" #include "lundump.h" #include "lzio.h" typedef struct { lua_State* L; ZIO* Z; Mbuffer* b; const char* name; } LoadState; #ifdef LUAC_TRUST_BINARIES #define IF(c,s) #define error(S,s) #else #define IF(c,s) if (c) error(S,s) static void error(LoadState* S, const char* why) { luaO_pushfstring(S->L,"%s: %s in precompiled chunk",S->name,why); luaD_throw(S->L,LUA_ERRSYNTAX); } #endif #define LoadMem(S,b,n,size) LoadBlock(S,b,(n)*(size)) #define LoadByte(S) (lu_byte)LoadChar(S) #define LoadVar(S,x) LoadMem(S,&x,1,sizeof(x)) #define LoadVector(S,b,n,size) LoadMem(S,b,n,size) static void LoadBlock(LoadState* S, void* b, size_t size) { size_t r=luaZ_read(S->Z,b,size); IF (r!=0, "unexpected end"); } static int LoadChar(LoadState* S) { char x; LoadVar(S,x); return x; } static int LoadInt(LoadState* S) { int x; LoadVar(S,x); IF (x<0, "bad integer"); return x; } static lua_Number LoadNumber(LoadState* S) { lua_Number x; LoadVar(S,x); return x; } static TString* LoadString(LoadState* S) { size_t size; LoadVar(S,size); if (size==0) return NULL; else { char* s=luaZ_openspace(S->L,S->b,size); LoadBlock(S,s,size); return luaS_newlstr(S->L,s,size-1); /* remove trailing '\0' */ } } static void LoadCode(LoadState* S, Proto* f) { int n=LoadInt(S); f->code=luaM_newvector(S->L,n,Instruction); f->sizecode=n; LoadVector(S,f->code,n,sizeof(Instruction)); } static Proto* LoadFunction(LoadState* S, TString* p); static void LoadConstants(LoadState* S, Proto* f) { int i,n; n=LoadInt(S); f->k=luaM_newvector(S->L,n,TValue); f->sizek=n; for (i=0; ik[i]); for (i=0; ik[i]; int t=LoadChar(S); switch (t) { case LUA_TNIL: setnilvalue(o); break; case LUA_TBOOLEAN: setbvalue(o,LoadChar(S)!=0); break; case LUA_TNUMBER: setnvalue(o,LoadNumber(S)); break; case LUA_TSTRING: setsvalue2n(S->L,o,LoadString(S)); break; default: error(S,"bad constant"); break; } } n=LoadInt(S); f->p=luaM_newvector(S->L,n,Proto*); f->sizep=n; for (i=0; ip[i]=NULL; for (i=0; ip[i]=LoadFunction(S,f->source); } static void LoadDebug(LoadState* S, Proto* f) { int i,n; n=LoadInt(S); f->lineinfo=luaM_newvector(S->L,n,int); f->sizelineinfo=n; LoadVector(S,f->lineinfo,n,sizeof(int)); n=LoadInt(S); f->locvars=luaM_newvector(S->L,n,LocVar); f->sizelocvars=n; for (i=0; ilocvars[i].varname=NULL; for (i=0; ilocvars[i].varname=LoadString(S); f->locvars[i].startpc=LoadInt(S); f->locvars[i].endpc=LoadInt(S); } n=LoadInt(S); f->upvalues=luaM_newvector(S->L,n,TString*); f->sizeupvalues=n; for (i=0; iupvalues[i]=NULL; for (i=0; iupvalues[i]=LoadString(S); } static Proto* LoadFunction(LoadState* S, TString* p) { Proto* f; if (++S->L->nCcalls > LUAI_MAXCCALLS) error(S,"code too deep"); f=luaF_newproto(S->L); setptvalue2s(S->L,S->L->top,f); incr_top(S->L); f->source=LoadString(S); if (f->source==NULL) f->source=p; f->linedefined=LoadInt(S); f->lastlinedefined=LoadInt(S); f->nups=LoadByte(S); f->numparams=LoadByte(S); f->is_vararg=LoadByte(S); f->maxstacksize=LoadByte(S); LoadCode(S,f); LoadConstants(S,f); LoadDebug(S,f); IF (!luaG_checkcode(f), "bad code"); S->L->top--; S->L->nCcalls--; return f; } static void LoadHeader(LoadState* S) { char h[LUAC_HEADERSIZE]; char s[LUAC_HEADERSIZE]; luaU_header(h); LoadBlock(S,s,LUAC_HEADERSIZE); IF (memcmp(h,s,LUAC_HEADERSIZE)!=0, "bad header"); } /* ** load precompiled chunk */ Proto* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name) { LoadState S; if (*name=='@' || *name=='=') S.name=name+1; else if (*name==LUA_SIGNATURE[0]) S.name="binary string"; else S.name=name; S.L=L; S.Z=Z; S.b=buff; LoadHeader(&S); return LoadFunction(&S,luaS_newliteral(L,"=?")); } /* * make header */ void luaU_header (char* h) { int x=1; memcpy(h,LUA_SIGNATURE,sizeof(LUA_SIGNATURE)-1); h+=sizeof(LUA_SIGNATURE)-1; *h++=(char)LUAC_VERSION; *h++=(char)LUAC_FORMAT; *h++=(char)*(char*)&x; /* endianness */ *h++=(char)sizeof(int); *h++=(char)sizeof(size_t); *h++=(char)sizeof(Instruction); *h++=(char)sizeof(lua_Number); *h++=(char)(((lua_Number)0.5)==0); /* is lua_Number integral? */ } redis-2.6.16/deps/lua/src/lundump.h000066400000000000000000000015721220734223100170550ustar00rootroot00000000000000/* ** $Id: lundump.h,v 1.37.1.1 2007/12/27 13:02:25 roberto Exp $ ** load precompiled Lua chunks ** See Copyright Notice in lua.h */ #ifndef lundump_h #define lundump_h #include "lobject.h" #include "lzio.h" /* load one chunk; from lundump.c */ LUAI_FUNC Proto* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name); /* make header; from lundump.c */ LUAI_FUNC void luaU_header (char* h); /* dump one chunk; from ldump.c */ LUAI_FUNC int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip); #ifdef luac_c /* print one chunk; from print.c */ LUAI_FUNC void luaU_print (const Proto* f, int full); #endif /* for header of binary files -- this is Lua 5.1 */ #define LUAC_VERSION 0x51 /* for header of binary files -- this is the official format */ #define LUAC_FORMAT 0 /* size of header of binary files */ #define LUAC_HEADERSIZE 12 #endif redis-2.6.16/deps/lua/src/lvm.c000066400000000000000000000553121220734223100161630ustar00rootroot00000000000000/* ** $Id: lvm.c,v 2.63.1.5 2011/08/17 20:43:11 roberto Exp $ ** Lua virtual machine ** See Copyright Notice in lua.h */ #include #include #include #define lvm_c #define LUA_CORE #include "lua.h" #include "ldebug.h" #include "ldo.h" #include "lfunc.h" #include "lgc.h" #include "lobject.h" #include "lopcodes.h" #include "lstate.h" #include "lstring.h" #include "ltable.h" #include "ltm.h" #include "lvm.h" /* limit for table tag-method chains (to avoid loops) */ #define MAXTAGLOOP 100 const TValue *luaV_tonumber (const TValue *obj, TValue *n) { lua_Number num; if (ttisnumber(obj)) return obj; if (ttisstring(obj) && luaO_str2d(svalue(obj), &num)) { setnvalue(n, num); return n; } else return NULL; } int luaV_tostring (lua_State *L, StkId obj) { if (!ttisnumber(obj)) return 0; else { char s[LUAI_MAXNUMBER2STR]; lua_Number n = nvalue(obj); lua_number2str(s, n); setsvalue2s(L, obj, luaS_new(L, s)); return 1; } } static void traceexec (lua_State *L, const Instruction *pc) { lu_byte mask = L->hookmask; const Instruction *oldpc = L->savedpc; L->savedpc = pc; if ((mask & LUA_MASKCOUNT) && L->hookcount == 0) { resethookcount(L); luaD_callhook(L, LUA_HOOKCOUNT, -1); } if (mask & LUA_MASKLINE) { Proto *p = ci_func(L->ci)->l.p; int npc = pcRel(pc, p); int newline = getline(p, npc); /* call linehook when enter a new function, when jump back (loop), or when enter a new line */ if (npc == 0 || pc <= oldpc || newline != getline(p, pcRel(oldpc, p))) luaD_callhook(L, LUA_HOOKLINE, newline); } } static void callTMres (lua_State *L, StkId res, const TValue *f, const TValue *p1, const TValue *p2) { ptrdiff_t result = savestack(L, res); setobj2s(L, L->top, f); /* push function */ setobj2s(L, L->top+1, p1); /* 1st argument */ setobj2s(L, L->top+2, p2); /* 2nd argument */ luaD_checkstack(L, 3); L->top += 3; luaD_call(L, L->top - 3, 1); res = restorestack(L, result); L->top--; setobjs2s(L, res, L->top); } static void callTM (lua_State *L, const TValue *f, const TValue *p1, const TValue *p2, const TValue *p3) { setobj2s(L, L->top, f); /* push function */ setobj2s(L, L->top+1, p1); /* 1st argument */ setobj2s(L, L->top+2, p2); /* 2nd argument */ setobj2s(L, L->top+3, p3); /* 3th argument */ luaD_checkstack(L, 4); L->top += 4; luaD_call(L, L->top - 4, 0); } void luaV_gettable (lua_State *L, const TValue *t, TValue *key, StkId val) { int loop; for (loop = 0; loop < MAXTAGLOOP; loop++) { const TValue *tm; if (ttistable(t)) { /* `t' is a table? */ Table *h = hvalue(t); const TValue *res = luaH_get(h, key); /* do a primitive get */ if (!ttisnil(res) || /* result is no nil? */ (tm = fasttm(L, h->metatable, TM_INDEX)) == NULL) { /* or no TM? */ setobj2s(L, val, res); return; } /* else will try the tag method */ } else if (ttisnil(tm = luaT_gettmbyobj(L, t, TM_INDEX))) luaG_typeerror(L, t, "index"); if (ttisfunction(tm)) { callTMres(L, val, tm, t, key); return; } t = tm; /* else repeat with `tm' */ } luaG_runerror(L, "loop in gettable"); } void luaV_settable (lua_State *L, const TValue *t, TValue *key, StkId val) { int loop; TValue temp; for (loop = 0; loop < MAXTAGLOOP; loop++) { const TValue *tm; if (ttistable(t)) { /* `t' is a table? */ Table *h = hvalue(t); TValue *oldval = luaH_set(L, h, key); /* do a primitive set */ if (!ttisnil(oldval) || /* result is no nil? */ (tm = fasttm(L, h->metatable, TM_NEWINDEX)) == NULL) { /* or no TM? */ setobj2t(L, oldval, val); h->flags = 0; luaC_barriert(L, h, val); return; } /* else will try the tag method */ } else if (ttisnil(tm = luaT_gettmbyobj(L, t, TM_NEWINDEX))) luaG_typeerror(L, t, "index"); if (ttisfunction(tm)) { callTM(L, tm, t, key, val); return; } /* else repeat with `tm' */ setobj(L, &temp, tm); /* avoid pointing inside table (may rehash) */ t = &temp; } luaG_runerror(L, "loop in settable"); } static int call_binTM (lua_State *L, const TValue *p1, const TValue *p2, StkId res, TMS event) { const TValue *tm = luaT_gettmbyobj(L, p1, event); /* try first operand */ if (ttisnil(tm)) tm = luaT_gettmbyobj(L, p2, event); /* try second operand */ if (ttisnil(tm)) return 0; callTMres(L, res, tm, p1, p2); return 1; } static const TValue *get_compTM (lua_State *L, Table *mt1, Table *mt2, TMS event) { const TValue *tm1 = fasttm(L, mt1, event); const TValue *tm2; if (tm1 == NULL) return NULL; /* no metamethod */ if (mt1 == mt2) return tm1; /* same metatables => same metamethods */ tm2 = fasttm(L, mt2, event); if (tm2 == NULL) return NULL; /* no metamethod */ if (luaO_rawequalObj(tm1, tm2)) /* same metamethods? */ return tm1; return NULL; } static int call_orderTM (lua_State *L, const TValue *p1, const TValue *p2, TMS event) { const TValue *tm1 = luaT_gettmbyobj(L, p1, event); const TValue *tm2; if (ttisnil(tm1)) return -1; /* no metamethod? */ tm2 = luaT_gettmbyobj(L, p2, event); if (!luaO_rawequalObj(tm1, tm2)) /* different metamethods? */ return -1; callTMres(L, L->top, tm1, p1, p2); return !l_isfalse(L->top); } static int l_strcmp (const TString *ls, const TString *rs) { const char *l = getstr(ls); size_t ll = ls->tsv.len; const char *r = getstr(rs); size_t lr = rs->tsv.len; for (;;) { int temp = strcoll(l, r); if (temp != 0) return temp; else { /* strings are equal up to a `\0' */ size_t len = strlen(l); /* index of first `\0' in both strings */ if (len == lr) /* r is finished? */ return (len == ll) ? 0 : 1; else if (len == ll) /* l is finished? */ return -1; /* l is smaller than r (because r is not finished) */ /* both strings longer than `len'; go on comparing (after the `\0') */ len++; l += len; ll -= len; r += len; lr -= len; } } } int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r) { int res; if (ttype(l) != ttype(r)) return luaG_ordererror(L, l, r); else if (ttisnumber(l)) return luai_numlt(nvalue(l), nvalue(r)); else if (ttisstring(l)) return l_strcmp(rawtsvalue(l), rawtsvalue(r)) < 0; else if ((res = call_orderTM(L, l, r, TM_LT)) != -1) return res; return luaG_ordererror(L, l, r); } static int lessequal (lua_State *L, const TValue *l, const TValue *r) { int res; if (ttype(l) != ttype(r)) return luaG_ordererror(L, l, r); else if (ttisnumber(l)) return luai_numle(nvalue(l), nvalue(r)); else if (ttisstring(l)) return l_strcmp(rawtsvalue(l), rawtsvalue(r)) <= 0; else if ((res = call_orderTM(L, l, r, TM_LE)) != -1) /* first try `le' */ return res; else if ((res = call_orderTM(L, r, l, TM_LT)) != -1) /* else try `lt' */ return !res; return luaG_ordererror(L, l, r); } int luaV_equalval (lua_State *L, const TValue *t1, const TValue *t2) { const TValue *tm; lua_assert(ttype(t1) == ttype(t2)); switch (ttype(t1)) { case LUA_TNIL: return 1; case LUA_TNUMBER: return luai_numeq(nvalue(t1), nvalue(t2)); case LUA_TBOOLEAN: return bvalue(t1) == bvalue(t2); /* true must be 1 !! */ case LUA_TLIGHTUSERDATA: return pvalue(t1) == pvalue(t2); case LUA_TUSERDATA: { if (uvalue(t1) == uvalue(t2)) return 1; tm = get_compTM(L, uvalue(t1)->metatable, uvalue(t2)->metatable, TM_EQ); break; /* will try TM */ } case LUA_TTABLE: { if (hvalue(t1) == hvalue(t2)) return 1; tm = get_compTM(L, hvalue(t1)->metatable, hvalue(t2)->metatable, TM_EQ); break; /* will try TM */ } default: return gcvalue(t1) == gcvalue(t2); } if (tm == NULL) return 0; /* no TM? */ callTMres(L, L->top, tm, t1, t2); /* call TM */ return !l_isfalse(L->top); } void luaV_concat (lua_State *L, int total, int last) { do { StkId top = L->base + last + 1; int n = 2; /* number of elements handled in this pass (at least 2) */ if (!(ttisstring(top-2) || ttisnumber(top-2)) || !tostring(L, top-1)) { if (!call_binTM(L, top-2, top-1, top-2, TM_CONCAT)) luaG_concaterror(L, top-2, top-1); } else if (tsvalue(top-1)->len == 0) /* second op is empty? */ (void)tostring(L, top - 2); /* result is first op (as string) */ else { /* at least two string values; get as many as possible */ size_t tl = tsvalue(top-1)->len; char *buffer; int i; /* collect total length */ for (n = 1; n < total && tostring(L, top-n-1); n++) { size_t l = tsvalue(top-n-1)->len; if (l >= MAX_SIZET - tl) luaG_runerror(L, "string length overflow"); tl += l; } buffer = luaZ_openspace(L, &G(L)->buff, tl); tl = 0; for (i=n; i>0; i--) { /* concat all strings */ size_t l = tsvalue(top-i)->len; memcpy(buffer+tl, svalue(top-i), l); tl += l; } setsvalue2s(L, top-n, luaS_newlstr(L, buffer, tl)); } total -= n-1; /* got `n' strings to create 1 new */ last -= n-1; } while (total > 1); /* repeat until only 1 result left */ } static void Arith (lua_State *L, StkId ra, const TValue *rb, const TValue *rc, TMS op) { TValue tempb, tempc; const TValue *b, *c; if ((b = luaV_tonumber(rb, &tempb)) != NULL && (c = luaV_tonumber(rc, &tempc)) != NULL) { lua_Number nb = nvalue(b), nc = nvalue(c); switch (op) { case TM_ADD: setnvalue(ra, luai_numadd(nb, nc)); break; case TM_SUB: setnvalue(ra, luai_numsub(nb, nc)); break; case TM_MUL: setnvalue(ra, luai_nummul(nb, nc)); break; case TM_DIV: setnvalue(ra, luai_numdiv(nb, nc)); break; case TM_MOD: setnvalue(ra, luai_nummod(nb, nc)); break; case TM_POW: setnvalue(ra, luai_numpow(nb, nc)); break; case TM_UNM: setnvalue(ra, luai_numunm(nb)); break; default: lua_assert(0); break; } } else if (!call_binTM(L, rb, rc, ra, op)) luaG_aritherror(L, rb, rc); } /* ** some macros for common tasks in `luaV_execute' */ #define runtime_check(L, c) { if (!(c)) break; } #define RA(i) (base+GETARG_A(i)) /* to be used after possible stack reallocation */ #define RB(i) check_exp(getBMode(GET_OPCODE(i)) == OpArgR, base+GETARG_B(i)) #define RC(i) check_exp(getCMode(GET_OPCODE(i)) == OpArgR, base+GETARG_C(i)) #define RKB(i) check_exp(getBMode(GET_OPCODE(i)) == OpArgK, \ ISK(GETARG_B(i)) ? k+INDEXK(GETARG_B(i)) : base+GETARG_B(i)) #define RKC(i) check_exp(getCMode(GET_OPCODE(i)) == OpArgK, \ ISK(GETARG_C(i)) ? k+INDEXK(GETARG_C(i)) : base+GETARG_C(i)) #define KBx(i) check_exp(getBMode(GET_OPCODE(i)) == OpArgK, k+GETARG_Bx(i)) #define dojump(L,pc,i) {(pc) += (i); luai_threadyield(L);} #define Protect(x) { L->savedpc = pc; {x;}; base = L->base; } #define arith_op(op,tm) { \ TValue *rb = RKB(i); \ TValue *rc = RKC(i); \ if (ttisnumber(rb) && ttisnumber(rc)) { \ lua_Number nb = nvalue(rb), nc = nvalue(rc); \ setnvalue(ra, op(nb, nc)); \ } \ else \ Protect(Arith(L, ra, rb, rc, tm)); \ } void luaV_execute (lua_State *L, int nexeccalls) { LClosure *cl; StkId base; TValue *k; const Instruction *pc; reentry: /* entry point */ lua_assert(isLua(L->ci)); pc = L->savedpc; cl = &clvalue(L->ci->func)->l; base = L->base; k = cl->p->k; /* main loop of interpreter */ for (;;) { const Instruction i = *pc++; StkId ra; if ((L->hookmask & (LUA_MASKLINE | LUA_MASKCOUNT)) && (--L->hookcount == 0 || L->hookmask & LUA_MASKLINE)) { traceexec(L, pc); if (L->status == LUA_YIELD) { /* did hook yield? */ L->savedpc = pc - 1; return; } base = L->base; } /* warning!! several calls may realloc the stack and invalidate `ra' */ ra = RA(i); lua_assert(base == L->base && L->base == L->ci->base); lua_assert(base <= L->top && L->top <= L->stack + L->stacksize); lua_assert(L->top == L->ci->top || luaG_checkopenop(i)); switch (GET_OPCODE(i)) { case OP_MOVE: { setobjs2s(L, ra, RB(i)); continue; } case OP_LOADK: { setobj2s(L, ra, KBx(i)); continue; } case OP_LOADBOOL: { setbvalue(ra, GETARG_B(i)); if (GETARG_C(i)) pc++; /* skip next instruction (if C) */ continue; } case OP_LOADNIL: { TValue *rb = RB(i); do { setnilvalue(rb--); } while (rb >= ra); continue; } case OP_GETUPVAL: { int b = GETARG_B(i); setobj2s(L, ra, cl->upvals[b]->v); continue; } case OP_GETGLOBAL: { TValue g; TValue *rb = KBx(i); sethvalue(L, &g, cl->env); lua_assert(ttisstring(rb)); Protect(luaV_gettable(L, &g, rb, ra)); continue; } case OP_GETTABLE: { Protect(luaV_gettable(L, RB(i), RKC(i), ra)); continue; } case OP_SETGLOBAL: { TValue g; sethvalue(L, &g, cl->env); lua_assert(ttisstring(KBx(i))); Protect(luaV_settable(L, &g, KBx(i), ra)); continue; } case OP_SETUPVAL: { UpVal *uv = cl->upvals[GETARG_B(i)]; setobj(L, uv->v, ra); luaC_barrier(L, uv, ra); continue; } case OP_SETTABLE: { Protect(luaV_settable(L, ra, RKB(i), RKC(i))); continue; } case OP_NEWTABLE: { int b = GETARG_B(i); int c = GETARG_C(i); sethvalue(L, ra, luaH_new(L, luaO_fb2int(b), luaO_fb2int(c))); Protect(luaC_checkGC(L)); continue; } case OP_SELF: { StkId rb = RB(i); setobjs2s(L, ra+1, rb); Protect(luaV_gettable(L, rb, RKC(i), ra)); continue; } case OP_ADD: { arith_op(luai_numadd, TM_ADD); continue; } case OP_SUB: { arith_op(luai_numsub, TM_SUB); continue; } case OP_MUL: { arith_op(luai_nummul, TM_MUL); continue; } case OP_DIV: { arith_op(luai_numdiv, TM_DIV); continue; } case OP_MOD: { arith_op(luai_nummod, TM_MOD); continue; } case OP_POW: { arith_op(luai_numpow, TM_POW); continue; } case OP_UNM: { TValue *rb = RB(i); if (ttisnumber(rb)) { lua_Number nb = nvalue(rb); setnvalue(ra, luai_numunm(nb)); } else { Protect(Arith(L, ra, rb, rb, TM_UNM)); } continue; } case OP_NOT: { int res = l_isfalse(RB(i)); /* next assignment may change this value */ setbvalue(ra, res); continue; } case OP_LEN: { const TValue *rb = RB(i); switch (ttype(rb)) { case LUA_TTABLE: { setnvalue(ra, cast_num(luaH_getn(hvalue(rb)))); break; } case LUA_TSTRING: { setnvalue(ra, cast_num(tsvalue(rb)->len)); break; } default: { /* try metamethod */ Protect( if (!call_binTM(L, rb, luaO_nilobject, ra, TM_LEN)) luaG_typeerror(L, rb, "get length of"); ) } } continue; } case OP_CONCAT: { int b = GETARG_B(i); int c = GETARG_C(i); Protect(luaV_concat(L, c-b+1, c); luaC_checkGC(L)); setobjs2s(L, RA(i), base+b); continue; } case OP_JMP: { dojump(L, pc, GETARG_sBx(i)); continue; } case OP_EQ: { TValue *rb = RKB(i); TValue *rc = RKC(i); Protect( if (equalobj(L, rb, rc) == GETARG_A(i)) dojump(L, pc, GETARG_sBx(*pc)); ) pc++; continue; } case OP_LT: { Protect( if (luaV_lessthan(L, RKB(i), RKC(i)) == GETARG_A(i)) dojump(L, pc, GETARG_sBx(*pc)); ) pc++; continue; } case OP_LE: { Protect( if (lessequal(L, RKB(i), RKC(i)) == GETARG_A(i)) dojump(L, pc, GETARG_sBx(*pc)); ) pc++; continue; } case OP_TEST: { if (l_isfalse(ra) != GETARG_C(i)) dojump(L, pc, GETARG_sBx(*pc)); pc++; continue; } case OP_TESTSET: { TValue *rb = RB(i); if (l_isfalse(rb) != GETARG_C(i)) { setobjs2s(L, ra, rb); dojump(L, pc, GETARG_sBx(*pc)); } pc++; continue; } case OP_CALL: { int b = GETARG_B(i); int nresults = GETARG_C(i) - 1; if (b != 0) L->top = ra+b; /* else previous instruction set top */ L->savedpc = pc; switch (luaD_precall(L, ra, nresults)) { case PCRLUA: { nexeccalls++; goto reentry; /* restart luaV_execute over new Lua function */ } case PCRC: { /* it was a C function (`precall' called it); adjust results */ if (nresults >= 0) L->top = L->ci->top; base = L->base; continue; } default: { return; /* yield */ } } } case OP_TAILCALL: { int b = GETARG_B(i); if (b != 0) L->top = ra+b; /* else previous instruction set top */ L->savedpc = pc; lua_assert(GETARG_C(i) - 1 == LUA_MULTRET); switch (luaD_precall(L, ra, LUA_MULTRET)) { case PCRLUA: { /* tail call: put new frame in place of previous one */ CallInfo *ci = L->ci - 1; /* previous frame */ int aux; StkId func = ci->func; StkId pfunc = (ci+1)->func; /* previous function index */ if (L->openupval) luaF_close(L, ci->base); L->base = ci->base = ci->func + ((ci+1)->base - pfunc); for (aux = 0; pfunc+aux < L->top; aux++) /* move frame down */ setobjs2s(L, func+aux, pfunc+aux); ci->top = L->top = func+aux; /* correct top */ lua_assert(L->top == L->base + clvalue(func)->l.p->maxstacksize); ci->savedpc = L->savedpc; ci->tailcalls++; /* one more call lost */ L->ci--; /* remove new frame */ goto reentry; } case PCRC: { /* it was a C function (`precall' called it) */ base = L->base; continue; } default: { return; /* yield */ } } } case OP_RETURN: { int b = GETARG_B(i); if (b != 0) L->top = ra+b-1; if (L->openupval) luaF_close(L, base); L->savedpc = pc; b = luaD_poscall(L, ra); if (--nexeccalls == 0) /* was previous function running `here'? */ return; /* no: return */ else { /* yes: continue its execution */ if (b) L->top = L->ci->top; lua_assert(isLua(L->ci)); lua_assert(GET_OPCODE(*((L->ci)->savedpc - 1)) == OP_CALL); goto reentry; } } case OP_FORLOOP: { lua_Number step = nvalue(ra+2); lua_Number idx = luai_numadd(nvalue(ra), step); /* increment index */ lua_Number limit = nvalue(ra+1); if (luai_numlt(0, step) ? luai_numle(idx, limit) : luai_numle(limit, idx)) { dojump(L, pc, GETARG_sBx(i)); /* jump back */ setnvalue(ra, idx); /* update internal index... */ setnvalue(ra+3, idx); /* ...and external index */ } continue; } case OP_FORPREP: { const TValue *init = ra; const TValue *plimit = ra+1; const TValue *pstep = ra+2; L->savedpc = pc; /* next steps may throw errors */ if (!tonumber(init, ra)) luaG_runerror(L, LUA_QL("for") " initial value must be a number"); else if (!tonumber(plimit, ra+1)) luaG_runerror(L, LUA_QL("for") " limit must be a number"); else if (!tonumber(pstep, ra+2)) luaG_runerror(L, LUA_QL("for") " step must be a number"); setnvalue(ra, luai_numsub(nvalue(ra), nvalue(pstep))); dojump(L, pc, GETARG_sBx(i)); continue; } case OP_TFORLOOP: { StkId cb = ra + 3; /* call base */ setobjs2s(L, cb+2, ra+2); setobjs2s(L, cb+1, ra+1); setobjs2s(L, cb, ra); L->top = cb+3; /* func. + 2 args (state and index) */ Protect(luaD_call(L, cb, GETARG_C(i))); L->top = L->ci->top; cb = RA(i) + 3; /* previous call may change the stack */ if (!ttisnil(cb)) { /* continue loop? */ setobjs2s(L, cb-1, cb); /* save control variable */ dojump(L, pc, GETARG_sBx(*pc)); /* jump back */ } pc++; continue; } case OP_SETLIST: { int n = GETARG_B(i); int c = GETARG_C(i); int last; Table *h; if (n == 0) { n = cast_int(L->top - ra) - 1; L->top = L->ci->top; } if (c == 0) c = cast_int(*pc++); runtime_check(L, ttistable(ra)); h = hvalue(ra); last = ((c-1)*LFIELDS_PER_FLUSH) + n; if (last > h->sizearray) /* needs more space? */ luaH_resizearray(L, h, last); /* pre-alloc it at once */ for (; n > 0; n--) { TValue *val = ra+n; setobj2t(L, luaH_setnum(L, h, last--), val); luaC_barriert(L, h, val); } continue; } case OP_CLOSE: { luaF_close(L, ra); continue; } case OP_CLOSURE: { Proto *p; Closure *ncl; int nup, j; p = cl->p->p[GETARG_Bx(i)]; nup = p->nups; ncl = luaF_newLclosure(L, nup, cl->env); ncl->l.p = p; for (j=0; jl.upvals[j] = cl->upvals[GETARG_B(*pc)]; else { lua_assert(GET_OPCODE(*pc) == OP_MOVE); ncl->l.upvals[j] = luaF_findupval(L, base + GETARG_B(*pc)); } } setclvalue(L, ra, ncl); Protect(luaC_checkGC(L)); continue; } case OP_VARARG: { int b = GETARG_B(i) - 1; int j; CallInfo *ci = L->ci; int n = cast_int(ci->base - ci->func) - cl->p->numparams - 1; if (b == LUA_MULTRET) { Protect(luaD_checkstack(L, n)); ra = RA(i); /* previous call may change the stack */ b = n; L->top = ra + n; } for (j = 0; j < b; j++) { if (j < n) { setobjs2s(L, ra + j, ci->base - n + j); } else { setnilvalue(ra + j); } } continue; } } } } redis-2.6.16/deps/lua/src/lvm.h000066400000000000000000000022071220734223100161630ustar00rootroot00000000000000/* ** $Id: lvm.h,v 2.5.1.1 2007/12/27 13:02:25 roberto Exp $ ** Lua virtual machine ** See Copyright Notice in lua.h */ #ifndef lvm_h #define lvm_h #include "ldo.h" #include "lobject.h" #include "ltm.h" #define tostring(L,o) ((ttype(o) == LUA_TSTRING) || (luaV_tostring(L, o))) #define tonumber(o,n) (ttype(o) == LUA_TNUMBER || \ (((o) = luaV_tonumber(o,n)) != NULL)) #define equalobj(L,o1,o2) \ (ttype(o1) == ttype(o2) && luaV_equalval(L, o1, o2)) LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r); LUAI_FUNC int luaV_equalval (lua_State *L, const TValue *t1, const TValue *t2); LUAI_FUNC const TValue *luaV_tonumber (const TValue *obj, TValue *n); LUAI_FUNC int luaV_tostring (lua_State *L, StkId obj); LUAI_FUNC void luaV_gettable (lua_State *L, const TValue *t, TValue *key, StkId val); LUAI_FUNC void luaV_settable (lua_State *L, const TValue *t, TValue *key, StkId val); LUAI_FUNC void luaV_execute (lua_State *L, int nexeccalls); LUAI_FUNC void luaV_concat (lua_State *L, int total, int last); #endif redis-2.6.16/deps/lua/src/lzio.c000066400000000000000000000031341220734223100163350ustar00rootroot00000000000000/* ** $Id: lzio.c,v 1.31.1.1 2007/12/27 13:02:25 roberto Exp $ ** a generic input stream interface ** See Copyright Notice in lua.h */ #include #define lzio_c #define LUA_CORE #include "lua.h" #include "llimits.h" #include "lmem.h" #include "lstate.h" #include "lzio.h" int luaZ_fill (ZIO *z) { size_t size; lua_State *L = z->L; const char *buff; lua_unlock(L); buff = z->reader(L, z->data, &size); lua_lock(L); if (buff == NULL || size == 0) return EOZ; z->n = size - 1; z->p = buff; return char2int(*(z->p++)); } int luaZ_lookahead (ZIO *z) { if (z->n == 0) { if (luaZ_fill(z) == EOZ) return EOZ; else { z->n++; /* luaZ_fill removed first byte; put back it */ z->p--; } } return char2int(*z->p); } void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader, void *data) { z->L = L; z->reader = reader; z->data = data; z->n = 0; z->p = NULL; } /* --------------------------------------------------------------- read --- */ size_t luaZ_read (ZIO *z, void *b, size_t n) { while (n) { size_t m; if (luaZ_lookahead(z) == EOZ) return n; /* return number of missing bytes */ m = (n <= z->n) ? n : z->n; /* min. between n and z->n */ memcpy(b, z->p, m); z->n -= m; z->p += m; b = (char *)b + m; n -= m; } return 0; } /* ------------------------------------------------------------------------ */ char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n) { if (n > buff->buffsize) { if (n < LUA_MINBUFFER) n = LUA_MINBUFFER; luaZ_resizebuffer(L, buff, n); } return buff->buffer; } redis-2.6.16/deps/lua/src/lzio.h000066400000000000000000000030241220734223100163400ustar00rootroot00000000000000/* ** $Id: lzio.h,v 1.21.1.1 2007/12/27 13:02:25 roberto Exp $ ** Buffered streams ** See Copyright Notice in lua.h */ #ifndef lzio_h #define lzio_h #include "lua.h" #include "lmem.h" #define EOZ (-1) /* end of stream */ typedef struct Zio ZIO; #define char2int(c) cast(int, cast(unsigned char, (c))) #define zgetc(z) (((z)->n--)>0 ? char2int(*(z)->p++) : luaZ_fill(z)) typedef struct Mbuffer { char *buffer; size_t n; size_t buffsize; } Mbuffer; #define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0) #define luaZ_buffer(buff) ((buff)->buffer) #define luaZ_sizebuffer(buff) ((buff)->buffsize) #define luaZ_bufflen(buff) ((buff)->n) #define luaZ_resetbuffer(buff) ((buff)->n = 0) #define luaZ_resizebuffer(L, buff, size) \ (luaM_reallocvector(L, (buff)->buffer, (buff)->buffsize, size, char), \ (buff)->buffsize = size) #define luaZ_freebuffer(L, buff) luaZ_resizebuffer(L, buff, 0) LUAI_FUNC char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n); LUAI_FUNC void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader, void *data); LUAI_FUNC size_t luaZ_read (ZIO* z, void* b, size_t n); /* read next n bytes */ LUAI_FUNC int luaZ_lookahead (ZIO *z); /* --------- Private Part ------------------ */ struct Zio { size_t n; /* bytes still unread */ const char *p; /* current position in buffer */ lua_Reader reader; void* data; /* additional data */ lua_State *L; /* Lua state (for reader) */ }; LUAI_FUNC int luaZ_fill (ZIO *z); #endif redis-2.6.16/deps/lua/src/print.c000066400000000000000000000115201220734223100165120ustar00rootroot00000000000000/* ** $Id: print.c,v 1.55a 2006/05/31 13:30:05 lhf Exp $ ** print bytecodes ** See Copyright Notice in lua.h */ #include #include #define luac_c #define LUA_CORE #include "ldebug.h" #include "lobject.h" #include "lopcodes.h" #include "lundump.h" #define PrintFunction luaU_print #define Sizeof(x) ((int)sizeof(x)) #define VOID(p) ((const void*)(p)) static void PrintString(const TString* ts) { const char* s=getstr(ts); size_t i,n=ts->tsv.len; putchar('"'); for (i=0; ik[i]; switch (ttype(o)) { case LUA_TNIL: printf("nil"); break; case LUA_TBOOLEAN: printf(bvalue(o) ? "true" : "false"); break; case LUA_TNUMBER: printf(LUA_NUMBER_FMT,nvalue(o)); break; case LUA_TSTRING: PrintString(rawtsvalue(o)); break; default: /* cannot happen */ printf("? type=%d",ttype(o)); break; } } static void PrintCode(const Proto* f) { const Instruction* code=f->code; int pc,n=f->sizecode; for (pc=0; pc0) printf("[%d]\t",line); else printf("[-]\t"); printf("%-9s\t",luaP_opnames[o]); switch (getOpMode(o)) { case iABC: printf("%d",a); if (getBMode(o)!=OpArgN) printf(" %d",ISK(b) ? (-1-INDEXK(b)) : b); if (getCMode(o)!=OpArgN) printf(" %d",ISK(c) ? (-1-INDEXK(c)) : c); break; case iABx: if (getBMode(o)==OpArgK) printf("%d %d",a,-1-bx); else printf("%d %d",a,bx); break; case iAsBx: if (o==OP_JMP) printf("%d",sbx); else printf("%d %d",a,sbx); break; } switch (o) { case OP_LOADK: printf("\t; "); PrintConstant(f,bx); break; case OP_GETUPVAL: case OP_SETUPVAL: printf("\t; %s", (f->sizeupvalues>0) ? getstr(f->upvalues[b]) : "-"); break; case OP_GETGLOBAL: case OP_SETGLOBAL: printf("\t; %s",svalue(&f->k[bx])); break; case OP_GETTABLE: case OP_SELF: if (ISK(c)) { printf("\t; "); PrintConstant(f,INDEXK(c)); } break; case OP_SETTABLE: case OP_ADD: case OP_SUB: case OP_MUL: case OP_DIV: case OP_POW: case OP_EQ: case OP_LT: case OP_LE: if (ISK(b) || ISK(c)) { printf("\t; "); if (ISK(b)) PrintConstant(f,INDEXK(b)); else printf("-"); printf(" "); if (ISK(c)) PrintConstant(f,INDEXK(c)); else printf("-"); } break; case OP_JMP: case OP_FORLOOP: case OP_FORPREP: printf("\t; to %d",sbx+pc+2); break; case OP_CLOSURE: printf("\t; %p",VOID(f->p[bx])); break; case OP_SETLIST: if (c==0) printf("\t; %d",(int)code[++pc]); else printf("\t; %d",c); break; default: break; } printf("\n"); } } #define SS(x) (x==1)?"":"s" #define S(x) x,SS(x) static void PrintHeader(const Proto* f) { const char* s=getstr(f->source); if (*s=='@' || *s=='=') s++; else if (*s==LUA_SIGNATURE[0]) s="(bstring)"; else s="(string)"; printf("\n%s <%s:%d,%d> (%d instruction%s, %d bytes at %p)\n", (f->linedefined==0)?"main":"function",s, f->linedefined,f->lastlinedefined, S(f->sizecode),f->sizecode*Sizeof(Instruction),VOID(f)); printf("%d%s param%s, %d slot%s, %d upvalue%s, ", f->numparams,f->is_vararg?"+":"",SS(f->numparams), S(f->maxstacksize),S(f->nups)); printf("%d local%s, %d constant%s, %d function%s\n", S(f->sizelocvars),S(f->sizek),S(f->sizep)); } static void PrintConstants(const Proto* f) { int i,n=f->sizek; printf("constants (%d) for %p:\n",n,VOID(f)); for (i=0; isizelocvars; printf("locals (%d) for %p:\n",n,VOID(f)); for (i=0; ilocvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1); } } static void PrintUpvalues(const Proto* f) { int i,n=f->sizeupvalues; printf("upvalues (%d) for %p:\n",n,VOID(f)); if (f->upvalues==NULL) return; for (i=0; iupvalues[i])); } } void PrintFunction(const Proto* f, int full) { int i,n=f->sizep; PrintHeader(f); PrintCode(f); if (full) { PrintConstants(f); PrintLocals(f); PrintUpvalues(f); } for (i=0; ip[i],full); } redis-2.6.16/deps/lua/src/strbuf.c000066400000000000000000000137551220734223100166770ustar00rootroot00000000000000/* strbuf - string buffer routines * * Copyright (c) 2010-2011 Mark Pulford * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include #include #include #include #include "strbuf.h" void die(const char *fmt, ...) { va_list arg; va_start(arg, fmt); vfprintf(stderr, fmt, arg); va_end(arg); fprintf(stderr, "\n"); exit(-1); } void strbuf_init(strbuf_t *s, int len) { int size; if (len <= 0) size = STRBUF_DEFAULT_SIZE; else size = len + 1; /* \0 terminator */ s->buf = NULL; s->size = size; s->length = 0; s->increment = STRBUF_DEFAULT_INCREMENT; s->dynamic = 0; s->reallocs = 0; s->debug = 0; s->buf = malloc(size); if (!s->buf) die("Out of memory"); strbuf_ensure_null(s); } strbuf_t *strbuf_new(int len) { strbuf_t *s; s = malloc(sizeof(strbuf_t)); if (!s) die("Out of memory"); strbuf_init(s, len); /* Dynamic strbuf allocation / deallocation */ s->dynamic = 1; return s; } void strbuf_set_increment(strbuf_t *s, int increment) { /* Increment > 0: Linear buffer growth rate * Increment < -1: Exponential buffer growth rate */ if (increment == 0 || increment == -1) die("BUG: Invalid string increment"); s->increment = increment; } static inline void debug_stats(strbuf_t *s) { if (s->debug) { fprintf(stderr, "strbuf(%lx) reallocs: %d, length: %d, size: %d\n", (long)s, s->reallocs, s->length, s->size); } } /* If strbuf_t has not been dynamically allocated, strbuf_free() can * be called any number of times strbuf_init() */ void strbuf_free(strbuf_t *s) { debug_stats(s); if (s->buf) { free(s->buf); s->buf = NULL; } if (s->dynamic) free(s); } char *strbuf_free_to_string(strbuf_t *s, int *len) { char *buf; debug_stats(s); strbuf_ensure_null(s); buf = s->buf; if (len) *len = s->length; if (s->dynamic) free(s); return buf; } static int calculate_new_size(strbuf_t *s, int len) { int reqsize, newsize; if (len <= 0) die("BUG: Invalid strbuf length requested"); /* Ensure there is room for optional NULL termination */ reqsize = len + 1; /* If the user has requested to shrink the buffer, do it exactly */ if (s->size > reqsize) return reqsize; newsize = s->size; if (s->increment < 0) { /* Exponential sizing */ while (newsize < reqsize) newsize *= -s->increment; } else { /* Linear sizing */ newsize = ((newsize + s->increment - 1) / s->increment) * s->increment; } return newsize; } /* Ensure strbuf can handle a string length bytes long (ignoring NULL * optional termination). */ void strbuf_resize(strbuf_t *s, int len) { int newsize; newsize = calculate_new_size(s, len); if (s->debug > 1) { fprintf(stderr, "strbuf(%lx) resize: %d => %d\n", (long)s, s->size, newsize); } s->size = newsize; s->buf = realloc(s->buf, s->size); if (!s->buf) die("Out of memory"); s->reallocs++; } void strbuf_append_string(strbuf_t *s, const char *str) { int space, i; space = strbuf_empty_length(s); for (i = 0; str[i]; i++) { if (space < 1) { strbuf_resize(s, s->length + 1); space = strbuf_empty_length(s); } s->buf[s->length] = str[i]; s->length++; space--; } } /* strbuf_append_fmt() should only be used when an upper bound * is known for the output string. */ void strbuf_append_fmt(strbuf_t *s, int len, const char *fmt, ...) { va_list arg; int fmt_len; strbuf_ensure_empty_length(s, len); va_start(arg, fmt); fmt_len = vsnprintf(s->buf + s->length, len, fmt, arg); va_end(arg); if (fmt_len < 0) die("BUG: Unable to convert number"); /* This should never happen.. */ s->length += fmt_len; } /* strbuf_append_fmt_retry() can be used when the there is no known * upper bound for the output string. */ void strbuf_append_fmt_retry(strbuf_t *s, const char *fmt, ...) { va_list arg; int fmt_len, try; int empty_len; /* If the first attempt to append fails, resize the buffer appropriately * and try again */ for (try = 0; ; try++) { va_start(arg, fmt); /* Append the new formatted string */ /* fmt_len is the length of the string required, excluding the * trailing NULL */ empty_len = strbuf_empty_length(s); /* Add 1 since there is also space to store the terminating NULL. */ fmt_len = vsnprintf(s->buf + s->length, empty_len + 1, fmt, arg); va_end(arg); if (fmt_len <= empty_len) break; /* SUCCESS */ if (try > 0) die("BUG: length of formatted string changed"); strbuf_resize(s, s->length + fmt_len); } s->length += fmt_len; } /* vi:ai et sw=4 ts=4: */ redis-2.6.16/deps/lua/src/strbuf.h000066400000000000000000000077531220734223100167050ustar00rootroot00000000000000/* strbuf - String buffer routines * * Copyright (c) 2010-2011 Mark Pulford * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include #include /* Size: Total bytes allocated to *buf * Length: String length, excluding optional NULL terminator. * Increment: Allocation increments when resizing the string buffer. * Dynamic: True if created via strbuf_new() */ typedef struct { char *buf; int size; int length; int increment; int dynamic; int reallocs; int debug; } strbuf_t; #ifndef STRBUF_DEFAULT_SIZE #define STRBUF_DEFAULT_SIZE 1023 #endif #ifndef STRBUF_DEFAULT_INCREMENT #define STRBUF_DEFAULT_INCREMENT -2 #endif /* Initialise */ extern strbuf_t *strbuf_new(int len); extern void strbuf_init(strbuf_t *s, int len); extern void strbuf_set_increment(strbuf_t *s, int increment); /* Release */ extern void strbuf_free(strbuf_t *s); extern char *strbuf_free_to_string(strbuf_t *s, int *len); /* Management */ extern void strbuf_resize(strbuf_t *s, int len); static int strbuf_empty_length(strbuf_t *s); static int strbuf_length(strbuf_t *s); static char *strbuf_string(strbuf_t *s, int *len); static void strbuf_ensure_empty_length(strbuf_t *s, int len); /* Update */ extern void strbuf_append_fmt(strbuf_t *s, int len, const char *fmt, ...); extern void strbuf_append_fmt_retry(strbuf_t *s, const char *format, ...); static void strbuf_append_mem(strbuf_t *s, const char *c, int len); extern void strbuf_append_string(strbuf_t *s, const char *str); static void strbuf_append_char(strbuf_t *s, const char c); static void strbuf_ensure_null(strbuf_t *s); /* Reset string for before use */ static inline void strbuf_reset(strbuf_t *s) { s->length = 0; } static inline int strbuf_allocated(strbuf_t *s) { return s->buf != NULL; } /* Return bytes remaining in the string buffer * Ensure there is space for a NULL terminator. */ static inline int strbuf_empty_length(strbuf_t *s) { return s->size - s->length - 1; } static inline void strbuf_ensure_empty_length(strbuf_t *s, int len) { if (len > strbuf_empty_length(s)) strbuf_resize(s, s->length + len); } static inline int strbuf_length(strbuf_t *s) { return s->length; } static inline void strbuf_append_char(strbuf_t *s, const char c) { strbuf_ensure_empty_length(s, 1); s->buf[s->length++] = c; } static inline void strbuf_append_char_unsafe(strbuf_t *s, const char c) { s->buf[s->length++] = c; } static inline void strbuf_append_mem(strbuf_t *s, const char *c, int len) { strbuf_ensure_empty_length(s, len); memcpy(s->buf + s->length, c, len); s->length += len; } static inline void strbuf_append_mem_unsafe(strbuf_t *s, const char *c, int len) { memcpy(s->buf + s->length, c, len); s->length += len; } static inline void strbuf_ensure_null(strbuf_t *s) { s->buf[s->length] = 0; } static inline char *strbuf_string(strbuf_t *s, int *len) { if (len) *len = s->length; return s->buf; } /* vi:ai et sw=4 ts=4: */ redis-2.6.16/deps/lua/test/000077500000000000000000000000001220734223100154035ustar00rootroot00000000000000redis-2.6.16/deps/lua/test/README000066400000000000000000000022311220734223100162610ustar00rootroot00000000000000These are simple tests for Lua. Some of them contain useful code. They are meant to be run to make sure Lua is built correctly and also to be read, to see how Lua programs look. Here is a one-line summary of each program: bisect.lua bisection method for solving non-linear equations cf.lua temperature conversion table (celsius to farenheit) echo.lua echo command line arguments env.lua environment variables as automatic global variables factorial.lua factorial without recursion fib.lua fibonacci function with cache fibfor.lua fibonacci numbers with coroutines and generators globals.lua report global variable usage hello.lua the first program in every language life.lua Conway's Game of Life luac.lua bare-bones luac printf.lua an implementation of printf readonly.lua make global variables readonly sieve.lua the sieve of of Eratosthenes programmed with coroutines sort.lua two implementations of a sort function table.lua make table, grouping all data for the same item trace-calls.lua trace calls trace-globals.lua trace assigments to global variables xd.lua hex dump redis-2.6.16/deps/lua/test/bisect.lua000066400000000000000000000012051220734223100173550ustar00rootroot00000000000000-- bisection method for solving non-linear equations delta=1e-6 -- tolerance function bisect(f,a,b,fa,fb) local c=(a+b)/2 io.write(n," c=",c," a=",a," b=",b,"\n") if c==a or c==b or math.abs(a-b) posted to lua-l -- modified to use ANSI terminal escape sequences -- modified to use for instead of while local write=io.write ALIVE="¥" DEAD="þ" ALIVE="O" DEAD="-" function delay() -- NOTE: SYSTEM-DEPENDENT, adjust as necessary for i=1,10000 do end -- local i=os.clock()+1 while(os.clock() 0 do local xm1,x,xp1,xi=self.w-1,self.w,1,self.w while xi > 0 do local sum = self[ym1][xm1] + self[ym1][x] + self[ym1][xp1] + self[y][xm1] + self[y][xp1] + self[yp1][xm1] + self[yp1][x] + self[yp1][xp1] next[y][x] = ((sum==2) and self[y][x]) or ((sum==3) and 1) or 0 xm1,x,xp1,xi = x,xp1,xp1+1,xi-1 end ym1,y,yp1,yi = y,yp1,yp1+1,yi-1 end end -- output the array to screen function _CELLS:draw() local out="" -- accumulate to reduce flicker for y=1,self.h do for x=1,self.w do out=out..(((self[y][x]>0) and ALIVE) or DEAD) end out=out.."\n" end write(out) end -- constructor function CELLS(w,h) local c = ARRAY2D(w,h) c.spawn = _CELLS.spawn c.evolve = _CELLS.evolve c.draw = _CELLS.draw return c end -- -- shapes suitable for use with spawn() above -- HEART = { 1,0,1,1,0,1,1,1,1; w=3,h=3 } GLIDER = { 0,0,1,1,0,1,0,1,1; w=3,h=3 } EXPLODE = { 0,1,0,1,1,1,1,0,1,0,1,0; w=3,h=4 } FISH = { 0,1,1,1,1,1,0,0,0,1,0,0,0,0,1,1,0,0,1,0; w=5,h=4 } BUTTERFLY = { 1,0,0,0,1,0,1,1,1,0,1,0,0,0,1,1,0,1,0,1,1,0,0,0,1; w=5,h=5 } -- the main routine function LIFE(w,h) -- create two arrays local thisgen = CELLS(w,h) local nextgen = CELLS(w,h) -- create some life -- about 1000 generations of fun, then a glider steady-state thisgen:spawn(GLIDER,5,4) thisgen:spawn(EXPLODE,25,10) thisgen:spawn(FISH,4,12) -- run until break local gen=1 write("\027[2J") -- ANSI clear screen while 1 do thisgen:evolve(nextgen) thisgen,nextgen = nextgen,thisgen write("\027[H") -- ANSI home cursor thisgen:draw() write("Life - generation ",gen,"\n") gen=gen+1 if gen>2000 then break end --delay() -- no delay end end LIFE(40,20) redis-2.6.16/deps/lua/test/luac.lua000066400000000000000000000003521220734223100170320ustar00rootroot00000000000000-- bare-bones luac in Lua -- usage: lua luac.lua file.lua assert(arg[1]~=nil and arg[2]==nil,"usage: lua luac.lua file.lua") f=assert(io.open("luac.out","wb")) assert(f:write(string.dump(assert(loadfile(arg[1]))))) assert(f:close()) redis-2.6.16/deps/lua/test/printf.lua000066400000000000000000000002511220734223100174060ustar00rootroot00000000000000-- an implementation of printf function printf(...) io.write(string.format(...)) end printf("Hello %s from %s on %s\n",os.getenv"USER" or "there",_VERSION,os.date()) redis-2.6.16/deps/lua/test/readonly.lua000066400000000000000000000004041220734223100177210ustar00rootroot00000000000000-- make global variables readonly local f=function (t,i) error("cannot redefine global variable `"..i.."'",2) end local g={} local G=getfenv() setmetatable(g,{__index=G,__newindex=f}) setfenv(1,g) -- an example rawset(g,"x",3) x=2 y=1 -- cannot redefine `y' redis-2.6.16/deps/lua/test/sieve.lua000066400000000000000000000014061220734223100172220ustar00rootroot00000000000000-- the sieve of of Eratosthenes programmed with coroutines -- typical usage: lua -e N=1000 sieve.lua | column -- generate all the numbers from 2 to n function gen (n) return coroutine.wrap(function () for i=2,n do coroutine.yield(i) end end) end -- filter the numbers generated by `g', removing multiples of `p' function filter (p, g) return coroutine.wrap(function () while 1 do local n = g() if n == nil then return end if math.mod(n, p) ~= 0 then coroutine.yield(n) end end end) end N=N or 1000 -- from command line x = gen(N) -- generate primes up to N while 1 do local n = x() -- pick a number until done if n == nil then break end print(n) -- must be a prime number x = filter(n, x) -- now remove its multiples end redis-2.6.16/deps/lua/test/sort.lua000066400000000000000000000027261220734223100171040ustar00rootroot00000000000000-- two implementations of a sort function -- this is an example only. Lua has now a built-in function "sort" -- extracted from Programming Pearls, page 110 function qsort(x,l,u,f) if ly end) show("after reverse selection sort",x) qsort(x,1,n,function (x,y) return x>> ",string.rep(" ",level)) if t~=nil and t.currentline>=0 then io.write(t.short_src,":",t.currentline," ") end t=debug.getinfo(2) if event=="call" then level=level+1 else level=level-1 if level<0 then level=0 end end if t.what=="main" then if event=="call" then io.write("begin ",t.short_src) else io.write("end ",t.short_src) end elseif t.what=="Lua" then -- table.foreach(t,print) io.write(event," ",t.name or "(Lua)"," <",t.linedefined,":",t.short_src,">") else io.write(event," ",t.name or "(C)"," [",t.what,"] ") end io.write("\n") end debug.sethook(hook,"cr") level=0 redis-2.6.16/deps/lua/test/trace-globals.lua000066400000000000000000000013301220734223100206220ustar00rootroot00000000000000-- trace assigments to global variables do -- a tostring that quotes strings. note the use of the original tostring. local _tostring=tostring local tostring=function(a) if type(a)=="string" then return string.format("%q",a) else return _tostring(a) end end local log=function (name,old,new) local t=debug.getinfo(3,"Sl") local line=t.currentline io.write(t.short_src) if line>=0 then io.write(":",line) end io.write(": ",name," is now ",tostring(new)," (was ",tostring(old),")","\n") end local g={} local set=function (t,name,value) log(name,g[name],value) g[name]=value end setmetatable(getfenv(),{__index=g,__newindex=set}) end -- an example a=1 b=2 a=10 b=20 b=nil b=200 print(a,b,c) redis-2.6.16/deps/lua/test/xd.lua000066400000000000000000000005541220734223100165250ustar00rootroot00000000000000-- hex dump -- usage: lua xd.lua < file local offset=0 while true do local s=io.read(16) if s==nil then return end io.write(string.format("%08X ",offset)) string.gsub(s,"(.)", function (c) io.write(string.format("%02X ",string.byte(c))) end) io.write(string.rep(" ",3*(16-string.len(s)))) io.write(" ",string.gsub(s,"%c","."),"\n") offset=offset+16 end redis-2.6.16/redis.conf000066400000000000000000000621111220734223100146660ustar00rootroot00000000000000# Redis configuration file example # Note on units: when memory size is needed, it is possible to specify # it in the usual form of 1k 5GB 4M and so forth: # # 1k => 1000 bytes # 1kb => 1024 bytes # 1m => 1000000 bytes # 1mb => 1024*1024 bytes # 1g => 1000000000 bytes # 1gb => 1024*1024*1024 bytes # # units are case insensitive so 1GB 1Gb 1gB are all the same. # By default Redis does not run as a daemon. Use 'yes' if you need it. # Note that Redis will write a pid file in /var/run/redis.pid when daemonized. daemonize no # When running daemonized, Redis writes a pid file in /var/run/redis.pid by # default. You can specify a custom pid file location here. pidfile /var/run/redis.pid # Accept connections on the specified port, default is 6379. # If port 0 is specified Redis will not listen on a TCP socket. port 6379 # If you want you can bind a single interface, if the bind option is not # specified all the interfaces will listen for incoming connections. # # bind 127.0.0.1 # Specify the path for the unix socket that will be used to listen for # incoming connections. There is no default, so Redis will not listen # on a unix socket when not specified. # # unixsocket /tmp/redis.sock # unixsocketperm 755 # Close the connection after a client is idle for N seconds (0 to disable) timeout 0 # TCP keepalive. # # If non-zero, use SO_KEEPALIVE to send TCP ACKs to clients in absence # of communication. This is useful for two reasons: # # 1) Detect dead peers. # 2) Take the connection alive from the point of view of network # equipment in the middle. # # On Linux, the specified value (in seconds) is the period used to send ACKs. # Note that to close the connection the double of the time is needed. # On other kernels the period depends on the kernel configuration. # # A reasonable value for this option is 60 seconds. tcp-keepalive 0 # Specify the server verbosity level. # This can be one of: # debug (a lot of information, useful for development/testing) # verbose (many rarely useful info, but not a mess like the debug level) # notice (moderately verbose, what you want in production probably) # warning (only very important / critical messages are logged) loglevel notice # Specify the log file name. Also 'stdout' can be used to force # Redis to log on the standard output. Note that if you use standard # output for logging but daemonize, logs will be sent to /dev/null logfile stdout # To enable logging to the system logger, just set 'syslog-enabled' to yes, # and optionally update the other syslog parameters to suit your needs. # syslog-enabled no # Specify the syslog identity. # syslog-ident redis # Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7. # syslog-facility local0 # Set the number of databases. The default database is DB 0, you can select # a different one on a per-connection basis using SELECT where # dbid is a number between 0 and 'databases'-1 databases 16 ################################ SNAPSHOTTING ################################# # # Save the DB on disk: # # save # # Will save the DB if both the given number of seconds and the given # number of write operations against the DB occurred. # # In the example below the behaviour will be to save: # after 900 sec (15 min) if at least 1 key changed # after 300 sec (5 min) if at least 10 keys changed # after 60 sec if at least 10000 keys changed # # Note: you can disable saving at all commenting all the "save" lines. # # It is also possible to remove all the previously configured save # points by adding a save directive with a single empty string argument # like in the following example: # # save "" save 900 1 save 300 10 save 60 10000 # By default Redis will stop accepting writes if RDB snapshots are enabled # (at least one save point) and the latest background save failed. # This will make the user aware (in an hard way) that data is not persisting # on disk properly, otherwise chances are that no one will notice and some # distater will happen. # # If the background saving process will start working again Redis will # automatically allow writes again. # # However if you have setup your proper monitoring of the Redis server # and persistence, you may want to disable this feature so that Redis will # continue to work as usually even if there are problems with disk, # permissions, and so forth. stop-writes-on-bgsave-error yes # Compress string objects using LZF when dump .rdb databases? # For default that's set to 'yes' as it's almost always a win. # If you want to save some CPU in the saving child set it to 'no' but # the dataset will likely be bigger if you have compressible values or keys. rdbcompression yes # Since version 5 of RDB a CRC64 checksum is placed at the end of the file. # This makes the format more resistant to corruption but there is a performance # hit to pay (around 10%) when saving and loading RDB files, so you can disable it # for maximum performances. # # RDB files created with checksum disabled have a checksum of zero that will # tell the loading code to skip the check. rdbchecksum yes # The filename where to dump the DB dbfilename dump.rdb # The working directory. # # The DB will be written inside this directory, with the filename specified # above using the 'dbfilename' configuration directive. # # The Append Only File will also be created inside this directory. # # Note that you must specify a directory here, not a file name. dir ./ ################################# REPLICATION ################################# # Master-Slave replication. Use slaveof to make a Redis instance a copy of # another Redis server. Note that the configuration is local to the slave # so for example it is possible to configure the slave to save the DB with a # different interval, or to listen to another port, and so on. # # slaveof # If the master is password protected (using the "requirepass" configuration # directive below) it is possible to tell the slave to authenticate before # starting the replication synchronization process, otherwise the master will # refuse the slave request. # # masterauth # When a slave loses its connection with the master, or when the replication # is still in progress, the slave can act in two different ways: # # 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will # still reply to client requests, possibly with out of date data, or the # data set may just be empty if this is the first synchronization. # # 2) if slave-serve-stale-data is set to 'no' the slave will reply with # an error "SYNC with master in progress" to all the kind of commands # but to INFO and SLAVEOF. # slave-serve-stale-data yes # You can configure a slave instance to accept writes or not. Writing against # a slave instance may be useful to store some ephemeral data (because data # written on a slave will be easily deleted after resync with the master) but # may also cause problems if clients are writing to it because of a # misconfiguration. # # Since Redis 2.6 by default slaves are read-only. # # Note: read only slaves are not designed to be exposed to untrusted clients # on the internet. It's just a protection layer against misuse of the instance. # Still a read only slave exports by default all the administrative commands # such as CONFIG, DEBUG, and so forth. To a limited extend you can improve # security of read only slaves using 'rename-command' to shadow all the # administrative / dangerous commands. slave-read-only yes # Slaves send PINGs to server in a predefined interval. It's possible to change # this interval with the repl_ping_slave_period option. The default value is 10 # seconds. # # repl-ping-slave-period 10 # The following option sets a timeout for both Bulk transfer I/O timeout and # master data or ping response timeout. The default value is 60 seconds. # # It is important to make sure that this value is greater than the value # specified for repl-ping-slave-period otherwise a timeout will be detected # every time there is low traffic between the master and the slave. # # repl-timeout 60 # Disable TCP_NODELAY on the slave socket after SYNC? # # If you select "yes" Redis will use a smaller number of TCP packets and # less bandwidth to send data to slaves. But this can add a delay for # the data to appear on the slave side, up to 40 milliseconds with # Linux kernels using a default configuration. # # If you select "no" the delay for data to appear on the slave side will # be reduced but more bandwidth will be used for replication. # # By default we optimize for low latency, but in very high traffic conditions # or when the master and slaves are many hops away, turning this to "yes" may # be a good idea. repl-disable-tcp-nodelay no # The slave priority is an integer number published by Redis in the INFO output. # It is used by Redis Sentinel in order to select a slave to promote into a # master if the master is no longer working correctly. # # A slave with a low priority number is considered better for promotion, so # for instance if there are three slaves with priority 10, 100, 25 Sentinel will # pick the one wtih priority 10, that is the lowest. # # However a special priority of 0 marks the slave as not able to perform the # role of master, so a slave with priority of 0 will never be selected by # Redis Sentinel for promotion. # # By default the priority is 100. slave-priority 100 ################################## SECURITY ################################### # Require clients to issue AUTH before processing any other # commands. This might be useful in environments in which you do not trust # others with access to the host running redis-server. # # This should stay commented out for backward compatibility and because most # people do not need auth (e.g. they run their own servers). # # Warning: since Redis is pretty fast an outside user can try up to # 150k passwords per second against a good box. This means that you should # use a very strong password otherwise it will be very easy to break. # # requirepass foobared # Command renaming. # # It is possible to change the name of dangerous commands in a shared # environment. For instance the CONFIG command may be renamed into something # hard to guess so that it will still be available for internal-use tools # but not available for general clients. # # Example: # # rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52 # # It is also possible to completely kill a command by renaming it into # an empty string: # # rename-command CONFIG "" # # Please note that changing the name of commands that are logged into the # AOF file or transmitted to slaves may cause problems. ################################### LIMITS #################################### # Set the max number of connected clients at the same time. By default # this limit is set to 10000 clients, however if the Redis server is not # able to configure the process file limit to allow for the specified limit # the max number of allowed clients is set to the current file limit # minus 32 (as Redis reserves a few file descriptors for internal uses). # # Once the limit is reached Redis will close all the new connections sending # an error 'max number of clients reached'. # # maxclients 10000 # Don't use more memory than the specified amount of bytes. # When the memory limit is reached Redis will try to remove keys # accordingly to the eviction policy selected (see maxmemmory-policy). # # If Redis can't remove keys according to the policy, or if the policy is # set to 'noeviction', Redis will start to reply with errors to commands # that would use more memory, like SET, LPUSH, and so on, and will continue # to reply to read-only commands like GET. # # This option is usually useful when using Redis as an LRU cache, or to set # an hard memory limit for an instance (using the 'noeviction' policy). # # WARNING: If you have slaves attached to an instance with maxmemory on, # the size of the output buffers needed to feed the slaves are subtracted # from the used memory count, so that network problems / resyncs will # not trigger a loop where keys are evicted, and in turn the output # buffer of slaves is full with DELs of keys evicted triggering the deletion # of more keys, and so forth until the database is completely emptied. # # In short... if you have slaves attached it is suggested that you set a lower # limit for maxmemory so that there is some free RAM on the system for slave # output buffers (but this is not needed if the policy is 'noeviction'). # # maxmemory # MAXMEMORY POLICY: how Redis will select what to remove when maxmemory # is reached. You can select among five behaviors: # # volatile-lru -> remove the key with an expire set using an LRU algorithm # allkeys-lru -> remove any key accordingly to the LRU algorithm # volatile-random -> remove a random key with an expire set # allkeys-random -> remove a random key, any key # volatile-ttl -> remove the key with the nearest expire time (minor TTL) # noeviction -> don't expire at all, just return an error on write operations # # Note: with any of the above policies, Redis will return an error on write # operations, when there are not suitable keys for eviction. # # At the date of writing this commands are: set setnx setex append # incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd # sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby # zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby # getset mset msetnx exec sort # # The default is: # # maxmemory-policy volatile-lru # LRU and minimal TTL algorithms are not precise algorithms but approximated # algorithms (in order to save memory), so you can select as well the sample # size to check. For instance for default Redis will check three keys and # pick the one that was used less recently, you can change the sample size # using the following configuration directive. # # maxmemory-samples 3 ############################## APPEND ONLY MODE ############################### # By default Redis asynchronously dumps the dataset on disk. This mode is # good enough in many applications, but an issue with the Redis process or # a power outage may result into a few minutes of writes lost (depending on # the configured save points). # # The Append Only File is an alternative persistence mode that provides # much better durability. For instance using the default data fsync policy # (see later in the config file) Redis can lose just one second of writes in a # dramatic event like a server power outage, or a single write if something # wrong with the Redis process itself happens, but the operating system is # still running correctly. # # AOF and RDB persistence can be enabled at the same time without problems. # If the AOF is enabled on startup Redis will load the AOF, that is the file # with the better durability guarantees. # # Please check http://redis.io/topics/persistence for more information. appendonly no # The name of the append only file (default: "appendonly.aof") # appendfilename appendonly.aof # The fsync() call tells the Operating System to actually write data on disk # instead to wait for more data in the output buffer. Some OS will really flush # data on disk, some other OS will just try to do it ASAP. # # Redis supports three different modes: # # no: don't fsync, just let the OS flush the data when it wants. Faster. # always: fsync after every write to the append only log . Slow, Safest. # everysec: fsync only one time every second. Compromise. # # The default is "everysec", as that's usually the right compromise between # speed and data safety. It's up to you to understand if you can relax this to # "no" that will let the operating system flush the output buffer when # it wants, for better performances (but if you can live with the idea of # some data loss consider the default persistence mode that's snapshotting), # or on the contrary, use "always" that's very slow but a bit safer than # everysec. # # More details please check the following article: # http://antirez.com/post/redis-persistence-demystified.html # # If unsure, use "everysec". # appendfsync always appendfsync everysec # appendfsync no # When the AOF fsync policy is set to always or everysec, and a background # saving process (a background save or AOF log background rewriting) is # performing a lot of I/O against the disk, in some Linux configurations # Redis may block too long on the fsync() call. Note that there is no fix for # this currently, as even performing fsync in a different thread will block # our synchronous write(2) call. # # In order to mitigate this problem it's possible to use the following option # that will prevent fsync() from being called in the main process while a # BGSAVE or BGREWRITEAOF is in progress. # # This means that while another child is saving, the durability of Redis is # the same as "appendfsync none". In practical terms, this means that it is # possible to lose up to 30 seconds of log in the worst scenario (with the # default Linux settings). # # If you have latency problems turn this to "yes". Otherwise leave it as # "no" that is the safest pick from the point of view of durability. no-appendfsync-on-rewrite no # Automatic rewrite of the append only file. # Redis is able to automatically rewrite the log file implicitly calling # BGREWRITEAOF when the AOF log size grows by the specified percentage. # # This is how it works: Redis remembers the size of the AOF file after the # latest rewrite (if no rewrite has happened since the restart, the size of # the AOF at startup is used). # # This base size is compared to the current size. If the current size is # bigger than the specified percentage, the rewrite is triggered. Also # you need to specify a minimal size for the AOF file to be rewritten, this # is useful to avoid rewriting the AOF file even if the percentage increase # is reached but it is still pretty small. # # Specify a percentage of zero in order to disable the automatic AOF # rewrite feature. auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb ################################ LUA SCRIPTING ############################### # Max execution time of a Lua script in milliseconds. # # If the maximum execution time is reached Redis will log that a script is # still in execution after the maximum allowed time and will start to # reply to queries with an error. # # When a long running script exceed the maximum execution time only the # SCRIPT KILL and SHUTDOWN NOSAVE commands are available. The first can be # used to stop a script that did not yet called write commands. The second # is the only way to shut down the server in the case a write commands was # already issue by the script but the user don't want to wait for the natural # termination of the script. # # Set it to 0 or a negative value for unlimited execution without warnings. lua-time-limit 5000 ################################## SLOW LOG ################################### # The Redis Slow Log is a system to log queries that exceeded a specified # execution time. The execution time does not include the I/O operations # like talking with the client, sending the reply and so forth, # but just the time needed to actually execute the command (this is the only # stage of command execution where the thread is blocked and can not serve # other requests in the meantime). # # You can configure the slow log with two parameters: one tells Redis # what is the execution time, in microseconds, to exceed in order for the # command to get logged, and the other parameter is the length of the # slow log. When a new command is logged the oldest one is removed from the # queue of logged commands. # The following time is expressed in microseconds, so 1000000 is equivalent # to one second. Note that a negative number disables the slow log, while # a value of zero forces the logging of every command. slowlog-log-slower-than 10000 # There is no limit to this length. Just be aware that it will consume memory. # You can reclaim memory used by the slow log with SLOWLOG RESET. slowlog-max-len 128 ############################### ADVANCED CONFIG ############################### # Hashes are encoded using a memory efficient data structure when they have a # small number of entries, and the biggest entry does not exceed a given # threshold. These thresholds can be configured using the following directives. hash-max-ziplist-entries 512 hash-max-ziplist-value 64 # Similarly to hashes, small lists are also encoded in a special way in order # to save a lot of space. The special representation is only used when # you are under the following limits: list-max-ziplist-entries 512 list-max-ziplist-value 64 # Sets have a special encoding in just one case: when a set is composed # of just strings that happens to be integers in radix 10 in the range # of 64 bit signed integers. # The following configuration setting sets the limit in the size of the # set in order to use this special memory saving encoding. set-max-intset-entries 512 # Similarly to hashes and lists, sorted sets are also specially encoded in # order to save a lot of space. This encoding is only used when the length and # elements of a sorted set are below the following limits: zset-max-ziplist-entries 128 zset-max-ziplist-value 64 # Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in # order to help rehashing the main Redis hash table (the one mapping top-level # keys to values). The hash table implementation Redis uses (see dict.c) # performs a lazy rehashing: the more operation you run into an hash table # that is rehashing, the more rehashing "steps" are performed, so if the # server is idle the rehashing is never complete and some more memory is used # by the hash table. # # The default is to use this millisecond 10 times every second in order to # active rehashing the main dictionaries, freeing memory when possible. # # If unsure: # use "activerehashing no" if you have hard latency requirements and it is # not a good thing in your environment that Redis can reply form time to time # to queries with 2 milliseconds delay. # # use "activerehashing yes" if you don't have such hard requirements but # want to free memory asap when possible. activerehashing yes # The client output buffer limits can be used to force disconnection of clients # that are not reading data from the server fast enough for some reason (a # common reason is that a Pub/Sub client can't consume messages as fast as the # publisher can produce them). # # The limit can be set differently for the three different classes of clients: # # normal -> normal clients # slave -> slave clients and MONITOR clients # pubsub -> clients subcribed to at least one pubsub channel or pattern # # The syntax of every client-output-buffer-limit directive is the following: # # client-output-buffer-limit # # A client is immediately disconnected once the hard limit is reached, or if # the soft limit is reached and remains reached for the specified number of # seconds (continuously). # So for instance if the hard limit is 32 megabytes and the soft limit is # 16 megabytes / 10 seconds, the client will get disconnected immediately # if the size of the output buffers reach 32 megabytes, but will also get # disconnected if the client reaches 16 megabytes and continuously overcomes # the limit for 10 seconds. # # By default normal clients are not limited because they don't receive data # without asking (in a push way), but just after a request, so only # asynchronous clients may create a scenario where data is requested faster # than it can read. # # Instead there is a default limit for pubsub and slave clients, since # subscribers and slaves receive data in a push fashion. # # Both the hard or the soft limit can be disabled by setting them to zero. client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 # Redis calls an internal function to perform many background tasks, like # closing connections of clients in timeot, purging expired keys that are # never requested, and so forth. # # Not all tasks are perforemd with the same frequency, but Redis checks for # tasks to perform accordingly to the specified "hz" value. # # By default "hz" is set to 10. Raising the value will use more CPU when # Redis is idle, but at the same time will make Redis more responsive when # there are many keys expiring at the same time, and timeouts may be # handled with more precision. # # The range is between 1 and 500, however a value over 100 is usually not # a good idea. Most users should use the default of 10 and raise this up to # 100 only in environments where very low latency is required. hz 10 # When a child rewrites the AOF file, if the following option is enabled # the file will be fsync-ed every 32 MB of data generated. This is useful # in order to commit the file to the disk more incrementally and avoid # big latency spikes. aof-rewrite-incremental-fsync yes ################################## INCLUDES ################################### # Include one or more other config files here. This is useful if you # have a standard template that goes to all Redis server but also need # to customize a few per-server settings. Include files can include # other files, so use this wisely. # # include /path/to/local.conf # include /path/to/other.conf redis-2.6.16/runtest000077500000000000000000000004171220734223100143440ustar00rootroot00000000000000#!/bin/sh TCL_VERSIONS="8.5 8.6" TCLSH="" for VERSION in $TCL_VERSIONS; do TCL=`which tclsh$VERSION 2>/dev/null` && TCLSH=$TCL done if [ -z $TCLSH ] then echo "You need tcl 8.5 or newer in order to run the Redis test" exit 1 fi $TCLSH tests/test_helper.tcl $* redis-2.6.16/sentinel.conf000066400000000000000000000131731220734223100154050ustar00rootroot00000000000000# Example sentinel.conf # port # The port that this sentinel instance will run on port 26379 # sentinel monitor # # Tells Sentinel to monitor this slave, and to consider it in O_DOWN # (Objectively Down) state only if at least sentinels agree. # # Note: master name should not include special characters or spaces. # The valid charset is A-z 0-9 and the three characters ".-_". sentinel monitor mymaster 127.0.0.1 6379 2 # sentinel auth-pass # # Set the password to use to authenticate with the master and slaves. # Useful if there is a password set in the Redis instances to monitor. # # Note that the master password is also used for slaves, so it is not # possible to set a different password in masters and slaves instances # if you want to be able to monitor these instances with Sentinel. # # However you can have Redis instances without the authentication enabled # mixed with Redis instances requiring the authentication (as long as the # password set is the same for all the instances requiring the password) as # the AUTH command will have no effect in Redis instances with authentication # switched off. # # Example: # # sentinel auth-pass mymaster MySUPER--secret-0123passw0rd # sentinel down-after-milliseconds # # Number of milliseconds the master (or any attached slave or sentinel) should # be unreachable (as in, not acceptable reply to PING, continuously, for the # specified period) in order to consider it in S_DOWN state (Subjectively # Down). # # Default is 30 seconds. sentinel down-after-milliseconds mymaster 30000 # sentinel can-failover # # Specify if this Sentinel can start the failover for this master. sentinel can-failover mymaster yes # sentinel parallel-syncs # # How many slaves we can reconfigure to point to the new slave simultaneously # during the failover. Use a low number if you use the slaves to serve query # to avoid that all the slaves will be unreachable at about the same # time while performing the synchronization with the master. sentinel parallel-syncs mymaster 1 # sentinel failover-timeout # # Specifies the failover timeout in milliseconds. When this time has elapsed # without any progress in the failover process, it is considered concluded by # the sentinel even if not all the attached slaves were correctly configured # to replicate with the new master (however a "best effort" SLAVEOF command # is sent to all the slaves before). # # Also when 25% of this time has elapsed without any advancement, and there # is a leader switch (the sentinel did not started the failover but is now # elected as leader), the sentinel will continue the failover doing a # "takeover". # # Default is 15 minutes. sentinel failover-timeout mymaster 900000 # SCRIPTS EXECUTION # # sentinel notification-script and sentinel reconfig-script are used in order # to configure scripts that are called to notify the system administrator # or to reconfigure clients after a failover. The scripts are executed # with the following rules for error handling: # # If script exists with "1" the execution is retried later (up to a maximum # number of times currently set to 10). # # If script exists with "2" (or an higher value) the script execution is # not retried. # # If script terminates because it receives a signal the behavior is the same # as exit code 1. # # A script has a maximum running time of 60 seconds. After this limit is # reached the script is terminated with a SIGKILL and the execution retried. # NOTIFICATION SCRIPT # # sentinel notification-script # # Call the specified notification script for any sentienl event that is # generated in the WARNING level (for instance -sdown, -odown, and so forth). # This script should notify the system administrator via email, SMS, or any # other messaging system, that there is something wrong with the monitored # Redis systems. # # The script is called with just two arguments: the first is the event type # and the second the event description. # # The script must exist and be executable in order for sentinel to start if # this option is provided. # # Example: # # sentinel notification-script mymaster /var/redis/notify.sh # CLIENTS RECONFIGURATION SCRIPT # # sentinel client-reconfig-script # # When the failover starts, ends, or is aborted, a script can be called in # order to perform application-specific tasks to notify the clients that the # configuration has changed and the master is at a different address. # # The script is called in the following cases: # # Failover started (a slave is already promoted) # Failover finished (all the additional slaves already reconfigured) # Failover aborted (in that case the script was previously called when the # failover started, and now gets called again with swapped # addresses). # # The following arguments are passed to the script: # # # # is "start", "end" or "abort" # is either "leader" or "observer" # # The arguments from-ip, from-port, to-ip, to-port are used to communicate # the old address of the master and the new address of the elected slave # (now a master) in the case state is "start" or "end". # # For abort instead the "from" is the address of the promoted slave and # "to" is the address of the original master address, since the failover # was aborted. # # This script should be resistant to multiple invocations. # # Example: # # sentinel client-reconfig-script mymaster /var/redis/reconfig.sh redis-2.6.16/src/000077500000000000000000000000001220734223100134775ustar00rootroot00000000000000redis-2.6.16/src/.gitignore000066400000000000000000000000521220734223100154640ustar00rootroot00000000000000*.gcda *.gcno *.gcov redis.info lcov-html redis-2.6.16/src/Makefile000066400000000000000000000163271220734223100151500ustar00rootroot00000000000000# Redis Makefile # Copyright (C) 2009 Salvatore Sanfilippo # This file is released under the BSD license, see the COPYING file # # The Makefile composes the final FINAL_CFLAGS and FINAL_LDFLAGS using # what is needed for Redis plus the standard CFLAGS and LDFLAGS passed. # However when building the dependencies (Jemalloc, Lua, Hiredis, ...) # CFLAGS and LDFLAGS are propagated to the dependencies, so to pass # flags only to be used when compiling / linking Redis itself REDIS_CFLAGS # and REDIS_LDFLAGS are used instead (this is the case of 'make gcov'). # # Dependencies are stored in the Makefile.dep file. To rebuild this file # Just use 'make dep', but this is only needed by developers. release_hdr := $(shell sh -c './mkreleasehdr.sh') uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not') OPTIMIZATION?=-O2 DEPENDENCY_TARGETS=hiredis linenoise lua # Default settings STD= -std=c99 -pedantic WARN= -Wall OPT= $(OPTIMIZATION) # Default allocator ifeq ($(uname_S),Linux) MALLOC=jemalloc else MALLOC=libc endif # Backwards compatibility for selecting an allocator ifeq ($(USE_TCMALLOC),yes) MALLOC=tcmalloc endif ifeq ($(USE_TCMALLOC_MINIMAL),yes) MALLOC=tcmalloc_minimal endif ifeq ($(USE_JEMALLOC),yes) MALLOC=jemalloc endif # Override default settings if possible -include .make-settings ifeq ($(uname_S),SunOS) FINAL_CFLAGS= $(STD) $(WARN) $(OPT) $(DEBUG) $(CFLAGS) $(REDIS_CFLAGS) -D__EXTENSIONS__ -D_XPG6 FINAL_LDFLAGS= $(LDFLAGS) $(REDIS_LDFLAGS) -g -ggdb FINAL_LIBS= -ldl -lnsl -lsocket -lm -lpthread DEBUG= -g -ggdb else FINAL_CFLAGS= $(STD) $(WARN) $(OPT) $(DEBUG) $(CFLAGS) $(REDIS_CFLAGS) FINAL_LDFLAGS= $(LDFLAGS) $(REDIS_LDFLAGS) -g -rdynamic -ggdb FINAL_LIBS= -lm -pthread DEBUG= -g -rdynamic -ggdb endif # Include paths to dependencies FINAL_CFLAGS+= -I../deps/hiredis -I../deps/linenoise -I../deps/lua/src ifeq ($(MALLOC),tcmalloc) FINAL_CFLAGS+= -DUSE_TCMALLOC FINAL_LIBS+= -ltcmalloc endif ifeq ($(MALLOC),tcmalloc_minimal) FINAL_CFLAGS+= -DUSE_TCMALLOC FINAL_LIBS+= -ltcmalloc_minimal endif ifeq ($(MALLOC),jemalloc) DEPENDENCY_TARGETS+= jemalloc FINAL_CFLAGS+= -DUSE_JEMALLOC -I../deps/jemalloc/include FINAL_LIBS+= ../deps/jemalloc/lib/libjemalloc.a -ldl endif REDIS_CC=$(QUIET_CC)$(CC) $(FINAL_CFLAGS) REDIS_LD=$(QUIET_LINK)$(CC) $(FINAL_LDFLAGS) REDIS_INSTALL=$(QUIET_INSTALL)$(INSTALL) PREFIX?=/usr/local INSTALL_BIN= $(PREFIX)/bin INSTALL= cp -pf CCCOLOR="\033[34m" LINKCOLOR="\033[34;1m" SRCCOLOR="\033[33m" BINCOLOR="\033[37;1m" MAKECOLOR="\033[32;1m" ENDCOLOR="\033[0m" ifndef V QUIET_CC = @printf ' %b %b\n' $(CCCOLOR)CC$(ENDCOLOR) $(SRCCOLOR)$@$(ENDCOLOR) 1>&2; QUIET_LINK = @printf ' %b %b\n' $(LINKCOLOR)LINK$(ENDCOLOR) $(BINCOLOR)$@$(ENDCOLOR) 1>&2; QUIET_INSTALL = @printf ' %b %b\n' $(LINKCOLOR)INSTALL$(ENDCOLOR) $(BINCOLOR)$@$(ENDCOLOR) 1>&2; endif REDIS_SERVER_NAME= redis-server REDIS_SENTINEL_NAME= redis-sentinel REDIS_SERVER_OBJ= adlist.o ae.o anet.o dict.o redis.o sds.o zmalloc.o lzf_c.o lzf_d.o pqsort.o zipmap.o sha1.o ziplist.o release.o networking.o util.o object.o db.o replication.o rdb.o t_string.o t_list.o t_set.o t_zset.o t_hash.o config.o aof.o pubsub.o multi.o debug.o sort.o intset.o syncio.o migrate.o endianconv.o slowlog.o scripting.o bio.o rio.o rand.o memtest.o crc64.o bitops.o sentinel.o REDIS_CLI_NAME= redis-cli REDIS_CLI_OBJ= anet.o sds.o adlist.o redis-cli.o zmalloc.o release.o anet.o ae.o REDIS_BENCHMARK_NAME= redis-benchmark REDIS_BENCHMARK_OBJ= ae.o anet.o redis-benchmark.o sds.o adlist.o zmalloc.o redis-benchmark.o REDIS_CHECK_DUMP_NAME= redis-check-dump REDIS_CHECK_DUMP_OBJ= redis-check-dump.o lzf_c.o lzf_d.o crc64.o REDIS_CHECK_AOF_NAME= redis-check-aof REDIS_CHECK_AOF_OBJ= redis-check-aof.o all: $(REDIS_SERVER_NAME) $(REDIS_SENTINEL_NAME) $(REDIS_CLI_NAME) $(REDIS_BENCHMARK_NAME) $(REDIS_CHECK_DUMP_NAME) $(REDIS_CHECK_AOF_NAME) @echo "" @echo "Hint: To run 'make test' is a good idea ;)" @echo "" .PHONY: all # Deps (use make dep to generate this) include Makefile.dep dep: $(REDIS_CC) -MM *.c > Makefile.dep .PHONY: dep persist-settings: distclean echo STD=$(STD) >> .make-settings echo WARN=$(WARN) >> .make-settings echo OPT=$(OPT) >> .make-settings echo MALLOC=$(MALLOC) >> .make-settings echo CFLAGS=$(CFLAGS) >> .make-settings echo LDFLAGS=$(LDFLAGS) >> .make-settings echo REDIS_CFLAGS=$(REDIS_CFLAGS) >> .make-settings echo REDIS_LDFLAGS=$(REDIS_LDFLAGS) >> .make-settings echo PREV_FINAL_CFLAGS=$(FINAL_CFLAGS) >> .make-settings echo PREV_FINAL_LDFLAGS=$(FINAL_LDFLAGS) >> .make-settings -(cd ../deps && $(MAKE) $(DEPENDENCY_TARGETS)) .PHONY: persist-settings # Prerequisites target .make-prerequisites: @touch $@ # Clean everything, persist settings and build dependencies if anything changed ifneq ($(strip $(PREV_FINAL_CFLAGS)), $(strip $(FINAL_CFLAGS))) .make-prerequisites: persist-settings endif ifneq ($(strip $(PREV_FINAL_LDFLAGS)), $(strip $(FINAL_LDFLAGS))) .make-prerequisites: persist-settings endif # redis-server $(REDIS_SERVER_NAME): $(REDIS_SERVER_OBJ) $(REDIS_LD) -o $@ $^ ../deps/hiredis/libhiredis.a ../deps/lua/src/liblua.a $(FINAL_LIBS) # redis-sentinel $(REDIS_SENTINEL_NAME): $(REDIS_SERVER_NAME) $(REDIS_INSTALL) $(REDIS_SERVER_NAME) $(REDIS_SENTINEL_NAME) # redis-cli $(REDIS_CLI_NAME): $(REDIS_CLI_OBJ) $(REDIS_LD) -o $@ $^ ../deps/hiredis/libhiredis.a ../deps/linenoise/linenoise.o $(FINAL_LIBS) # redis-benchmark $(REDIS_BENCHMARK_NAME): $(REDIS_BENCHMARK_OBJ) $(REDIS_LD) -o $@ $^ ../deps/hiredis/libhiredis.a $(FINAL_LIBS) # redis-check-dump $(REDIS_CHECK_DUMP_NAME): $(REDIS_CHECK_DUMP_OBJ) $(REDIS_LD) -o $@ $^ $(FINAL_LIBS) # redis-check-aof $(REDIS_CHECK_AOF_NAME): $(REDIS_CHECK_AOF_OBJ) $(REDIS_LD) -o $@ $^ $(FINAL_LIBS) # Because the jemalloc.h header is generated as a part of the jemalloc build, # building it should complete before building any other object. Instead of # depending on a single artifact, build all dependencies first. %.o: %.c .make-prerequisites $(REDIS_CC) -c $< clean: rm -rf $(REDIS_SERVER_NAME) $(REDIS_SENTINEL_NAME) $(REDIS_CLI_NAME) $(REDIS_BENCHMARK_NAME) $(REDIS_CHECK_DUMP_NAME) $(REDIS_CHECK_AOF_NAME) *.o *.gcda *.gcno *.gcov redis.info lcov-html .PHONY: clean distclean: clean -(cd ../deps && $(MAKE) distclean) -(rm -f .make-*) .PHONY: distclean test: $(REDIS_SERVER_NAME) $(REDIS_CHECK_AOF_NAME) @(cd ..; ./runtest) lcov: $(MAKE) gcov @(set -e; cd ..; ./runtest --clients 1) @geninfo -o redis.info . @genhtml --legend -o lcov-html redis.info .PHONY: lcov bench: $(REDIS_BENCHMARK_NAME) ./$(REDIS_BENCHMARK_NAME) 32bit: @echo "" @echo "WARNING: if it fails under Linux you probably need to install libc6-dev-i386" @echo "" $(MAKE) CFLAGS="-m32" LDFLAGS="-m32" gcov: $(MAKE) REDIS_CFLAGS="-fprofile-arcs -ftest-coverage -DCOVERAGE_TEST" REDIS_LDFLAGS="-fprofile-arcs -ftest-coverage" noopt: $(MAKE) OPTIMIZATION="-O0" valgrind: $(MAKE) OPTIMIZATION="-O0" MALLOC="libc" src/help.h: @../utils/generate-command-help.rb > help.h install: all mkdir -p $(INSTALL_BIN) $(REDIS_INSTALL) $(REDIS_SERVER_NAME) $(INSTALL_BIN) $(REDIS_INSTALL) $(REDIS_BENCHMARK_NAME) $(INSTALL_BIN) $(REDIS_INSTALL) $(REDIS_CLI_NAME) $(INSTALL_BIN) $(REDIS_INSTALL) $(REDIS_CHECK_DUMP_NAME) $(INSTALL_BIN) $(REDIS_INSTALL) $(REDIS_CHECK_AOF_NAME) $(INSTALL_BIN) redis-2.6.16/src/Makefile.dep000066400000000000000000000137161220734223100157160ustar00rootroot00000000000000adlist.o: adlist.c adlist.h zmalloc.h ae.o: ae.c ae.h zmalloc.h config.h ae_kqueue.c ae_epoll.o: ae_epoll.c ae_evport.o: ae_evport.c ae_kqueue.o: ae_kqueue.c ae_select.o: ae_select.c anet.o: anet.c fmacros.h anet.h aof.o: aof.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h bio.h bio.o: bio.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h bio.h bitops.o: bitops.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h config.o: config.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h crc64.o: crc64.c db.o: db.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h debug.o: debug.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h sha1.h dict.o: dict.c fmacros.h dict.h zmalloc.h endianconv.o: endianconv.c intset.o: intset.c intset.h zmalloc.h endianconv.h config.h lzf_c.o: lzf_c.c lzfP.h lzf_d.o: lzf_d.c lzfP.h memtest.o: memtest.c migrate.o: migrate.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h endianconv.h multi.o: multi.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h networking.o: networking.c redis.h fmacros.h config.h \ ../deps/lua/src/lua.h ../deps/lua/src/luaconf.h ae.h sds.h dict.h \ adlist.h zmalloc.h anet.h ziplist.h intset.h version.h util.h rdb.h \ rio.h object.o: object.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h pqsort.o: pqsort.c pubsub.o: pubsub.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h rand.o: rand.c rdb.o: rdb.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h lzf.h zipmap.h \ endianconv.h redis-benchmark.o: redis-benchmark.c fmacros.h ae.h \ ../deps/hiredis/hiredis.h sds.h adlist.h zmalloc.h redis-check-aof.o: redis-check-aof.c fmacros.h config.h redis-check-dump.o: redis-check-dump.c lzf.h redis-cli.o: redis-cli.c fmacros.h version.h ../deps/hiredis/hiredis.h \ sds.h zmalloc.h ../deps/linenoise/linenoise.h help.h anet.h ae.h redis.o: redis.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h slowlog.h bio.h \ asciilogo.h release.o: release.c release.h replication.o: replication.c redis.h fmacros.h config.h \ ../deps/lua/src/lua.h ../deps/lua/src/luaconf.h ae.h sds.h dict.h \ adlist.h zmalloc.h anet.h ziplist.h intset.h version.h util.h rdb.h \ rio.h rio.o: rio.c fmacros.h rio.h sds.h util.h scripting.o: scripting.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h sha1.h rand.h \ ../deps/lua/src/lauxlib.h ../deps/lua/src/lua.h \ ../deps/lua/src/lualib.h sds.o: sds.c sds.h zmalloc.h sentinel.o: sentinel.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h \ ../deps/hiredis/hiredis.h ../deps/hiredis/async.h \ ../deps/hiredis/hiredis.h sha1.o: sha1.c sha1.h config.h slowlog.o: slowlog.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h slowlog.h sort.o: sort.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h pqsort.h syncio.o: syncio.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h t_hash.o: t_hash.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h t_list.o: t_list.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h t_set.o: t_set.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h t_string.o: t_string.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h t_zset.o: t_zset.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \ ../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \ ziplist.h intset.h version.h util.h rdb.h rio.h util.o: util.c fmacros.h util.h ziplist.o: ziplist.c zmalloc.h util.h ziplist.h endianconv.h config.h zipmap.o: zipmap.c zmalloc.h endianconv.h config.h zmalloc.o: zmalloc.c config.h zmalloc.h redis-2.6.16/src/adlist.c000066400000000000000000000233121220734223100151240ustar00rootroot00000000000000/* adlist.c - A generic doubly linked list implementation * * Copyright (c) 2006-2010, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include "adlist.h" #include "zmalloc.h" /* Create a new list. The created list can be freed with * AlFreeList(), but private value of every node need to be freed * by the user before to call AlFreeList(). * * On error, NULL is returned. Otherwise the pointer to the new list. */ list *listCreate(void) { struct list *list; if ((list = zmalloc(sizeof(*list))) == NULL) return NULL; list->head = list->tail = NULL; list->len = 0; list->dup = NULL; list->free = NULL; list->match = NULL; return list; } /* Free the whole list. * * This function can't fail. */ void listRelease(list *list) { unsigned long len; listNode *current, *next; current = list->head; len = list->len; while(len--) { next = current->next; if (list->free) list->free(current->value); zfree(current); current = next; } zfree(list); } /* Add a new node to the list, to head, contaning the specified 'value' * pointer as value. * * On error, NULL is returned and no operation is performed (i.e. the * list remains unaltered). * On success the 'list' pointer you pass to the function is returned. */ list *listAddNodeHead(list *list, void *value) { listNode *node; if ((node = zmalloc(sizeof(*node))) == NULL) return NULL; node->value = value; if (list->len == 0) { list->head = list->tail = node; node->prev = node->next = NULL; } else { node->prev = NULL; node->next = list->head; list->head->prev = node; list->head = node; } list->len++; return list; } /* Add a new node to the list, to tail, containing the specified 'value' * pointer as value. * * On error, NULL is returned and no operation is performed (i.e. the * list remains unaltered). * On success the 'list' pointer you pass to the function is returned. */ list *listAddNodeTail(list *list, void *value) { listNode *node; if ((node = zmalloc(sizeof(*node))) == NULL) return NULL; node->value = value; if (list->len == 0) { list->head = list->tail = node; node->prev = node->next = NULL; } else { node->prev = list->tail; node->next = NULL; list->tail->next = node; list->tail = node; } list->len++; return list; } list *listInsertNode(list *list, listNode *old_node, void *value, int after) { listNode *node; if ((node = zmalloc(sizeof(*node))) == NULL) return NULL; node->value = value; if (after) { node->prev = old_node; node->next = old_node->next; if (list->tail == old_node) { list->tail = node; } } else { node->next = old_node; node->prev = old_node->prev; if (list->head == old_node) { list->head = node; } } if (node->prev != NULL) { node->prev->next = node; } if (node->next != NULL) { node->next->prev = node; } list->len++; return list; } /* Remove the specified node from the specified list. * It's up to the caller to free the private value of the node. * * This function can't fail. */ void listDelNode(list *list, listNode *node) { if (node->prev) node->prev->next = node->next; else list->head = node->next; if (node->next) node->next->prev = node->prev; else list->tail = node->prev; if (list->free) list->free(node->value); zfree(node); list->len--; } /* Returns a list iterator 'iter'. After the initialization every * call to listNext() will return the next element of the list. * * This function can't fail. */ listIter *listGetIterator(list *list, int direction) { listIter *iter; if ((iter = zmalloc(sizeof(*iter))) == NULL) return NULL; if (direction == AL_START_HEAD) iter->next = list->head; else iter->next = list->tail; iter->direction = direction; return iter; } /* Release the iterator memory */ void listReleaseIterator(listIter *iter) { zfree(iter); } /* Create an iterator in the list private iterator structure */ void listRewind(list *list, listIter *li) { li->next = list->head; li->direction = AL_START_HEAD; } void listRewindTail(list *list, listIter *li) { li->next = list->tail; li->direction = AL_START_TAIL; } /* Return the next element of an iterator. * It's valid to remove the currently returned element using * listDelNode(), but not to remove other elements. * * The function returns a pointer to the next element of the list, * or NULL if there are no more elements, so the classical usage patter * is: * * iter = listGetIterator(list,); * while ((node = listNext(iter)) != NULL) { * doSomethingWith(listNodeValue(node)); * } * * */ listNode *listNext(listIter *iter) { listNode *current = iter->next; if (current != NULL) { if (iter->direction == AL_START_HEAD) iter->next = current->next; else iter->next = current->prev; } return current; } /* Duplicate the whole list. On out of memory NULL is returned. * On success a copy of the original list is returned. * * The 'Dup' method set with listSetDupMethod() function is used * to copy the node value. Otherwise the same pointer value of * the original node is used as value of the copied node. * * The original list both on success or error is never modified. */ list *listDup(list *orig) { list *copy; listIter *iter; listNode *node; if ((copy = listCreate()) == NULL) return NULL; copy->dup = orig->dup; copy->free = orig->free; copy->match = orig->match; iter = listGetIterator(orig, AL_START_HEAD); while((node = listNext(iter)) != NULL) { void *value; if (copy->dup) { value = copy->dup(node->value); if (value == NULL) { listRelease(copy); listReleaseIterator(iter); return NULL; } } else value = node->value; if (listAddNodeTail(copy, value) == NULL) { listRelease(copy); listReleaseIterator(iter); return NULL; } } listReleaseIterator(iter); return copy; } /* Search the list for a node matching a given key. * The match is performed using the 'match' method * set with listSetMatchMethod(). If no 'match' method * is set, the 'value' pointer of every node is directly * compared with the 'key' pointer. * * On success the first matching node pointer is returned * (search starts from head). If no matching node exists * NULL is returned. */ listNode *listSearchKey(list *list, void *key) { listIter *iter; listNode *node; iter = listGetIterator(list, AL_START_HEAD); while((node = listNext(iter)) != NULL) { if (list->match) { if (list->match(node->value, key)) { listReleaseIterator(iter); return node; } } else { if (key == node->value) { listReleaseIterator(iter); return node; } } } listReleaseIterator(iter); return NULL; } /* Return the element at the specified zero-based index * where 0 is the head, 1 is the element next to head * and so on. Negative integers are used in order to count * from the tail, -1 is the last element, -2 the penultimate * and so on. If the index is out of range NULL is returned. */ listNode *listIndex(list *list, long index) { listNode *n; if (index < 0) { index = (-index)-1; n = list->tail; while(index-- && n) n = n->prev; } else { n = list->head; while(index-- && n) n = n->next; } return n; } /* Rotate the list removing the tail node and inserting it to the head. */ void listRotate(list *list) { listNode *tail = list->tail; if (listLength(list) <= 1) return; /* Detach current tail */ list->tail = tail->prev; list->tail->next = NULL; /* Move it as head */ list->head->prev = tail; tail->prev = NULL; tail->next = list->head; list->head = tail; } redis-2.6.16/src/adlist.h000066400000000000000000000065731220734223100151430ustar00rootroot00000000000000/* adlist.h - A generic doubly linked list implementation * * Copyright (c) 2006-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __ADLIST_H__ #define __ADLIST_H__ /* Node, List, and Iterator are the only data structures used currently. */ typedef struct listNode { struct listNode *prev; struct listNode *next; void *value; } listNode; typedef struct listIter { listNode *next; int direction; } listIter; typedef struct list { listNode *head; listNode *tail; void *(*dup)(void *ptr); void (*free)(void *ptr); int (*match)(void *ptr, void *key); unsigned long len; } list; /* Functions implemented as macros */ #define listLength(l) ((l)->len) #define listFirst(l) ((l)->head) #define listLast(l) ((l)->tail) #define listPrevNode(n) ((n)->prev) #define listNextNode(n) ((n)->next) #define listNodeValue(n) ((n)->value) #define listSetDupMethod(l,m) ((l)->dup = (m)) #define listSetFreeMethod(l,m) ((l)->free = (m)) #define listSetMatchMethod(l,m) ((l)->match = (m)) #define listGetDupMethod(l) ((l)->dup) #define listGetFree(l) ((l)->free) #define listGetMatchMethod(l) ((l)->match) /* Prototypes */ list *listCreate(void); void listRelease(list *list); list *listAddNodeHead(list *list, void *value); list *listAddNodeTail(list *list, void *value); list *listInsertNode(list *list, listNode *old_node, void *value, int after); void listDelNode(list *list, listNode *node); listIter *listGetIterator(list *list, int direction); listNode *listNext(listIter *iter); void listReleaseIterator(listIter *iter); list *listDup(list *orig); listNode *listSearchKey(list *list, void *key); listNode *listIndex(list *list, long index); void listRewind(list *list, listIter *li); void listRewindTail(list *list, listIter *li); void listRotate(list *list); /* Directions for iterators */ #define AL_START_HEAD 0 #define AL_START_TAIL 1 #endif /* __ADLIST_H__ */ redis-2.6.16/src/ae.c000066400000000000000000000346261220734223100142430ustar00rootroot00000000000000/* A simple event-driven programming library. Originally I wrote this code * for the Jim's event-loop (Jim is a Tcl interpreter) but later translated * it in form of a library for easy reuse. * * Copyright (c) 2006-2010, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include "ae.h" #include "zmalloc.h" #include "config.h" /* Include the best multiplexing layer supported by this system. * The following should be ordered by performances, descending. */ #ifdef HAVE_EVPORT #include "ae_evport.c" #else #ifdef HAVE_EPOLL #include "ae_epoll.c" #else #ifdef HAVE_KQUEUE #include "ae_kqueue.c" #else #include "ae_select.c" #endif #endif #endif aeEventLoop *aeCreateEventLoop(int setsize) { aeEventLoop *eventLoop; int i; if ((eventLoop = zmalloc(sizeof(*eventLoop))) == NULL) goto err; eventLoop->events = zmalloc(sizeof(aeFileEvent)*setsize); eventLoop->fired = zmalloc(sizeof(aeFiredEvent)*setsize); if (eventLoop->events == NULL || eventLoop->fired == NULL) goto err; eventLoop->setsize = setsize; eventLoop->lastTime = time(NULL); eventLoop->timeEventHead = NULL; eventLoop->timeEventNextId = 0; eventLoop->stop = 0; eventLoop->maxfd = -1; eventLoop->beforesleep = NULL; if (aeApiCreate(eventLoop) == -1) goto err; /* Events with mask == AE_NONE are not set. So let's initialize the * vector with it. */ for (i = 0; i < setsize; i++) eventLoop->events[i].mask = AE_NONE; return eventLoop; err: if (eventLoop) { zfree(eventLoop->events); zfree(eventLoop->fired); zfree(eventLoop); } return NULL; } void aeDeleteEventLoop(aeEventLoop *eventLoop) { aeApiFree(eventLoop); zfree(eventLoop->events); zfree(eventLoop->fired); zfree(eventLoop); } void aeStop(aeEventLoop *eventLoop) { eventLoop->stop = 1; } int aeCreateFileEvent(aeEventLoop *eventLoop, int fd, int mask, aeFileProc *proc, void *clientData) { if (fd >= eventLoop->setsize) { errno = ERANGE; return AE_ERR; } aeFileEvent *fe = &eventLoop->events[fd]; if (aeApiAddEvent(eventLoop, fd, mask) == -1) return AE_ERR; fe->mask |= mask; if (mask & AE_READABLE) fe->rfileProc = proc; if (mask & AE_WRITABLE) fe->wfileProc = proc; fe->clientData = clientData; if (fd > eventLoop->maxfd) eventLoop->maxfd = fd; return AE_OK; } void aeDeleteFileEvent(aeEventLoop *eventLoop, int fd, int mask) { if (fd >= eventLoop->setsize) return; aeFileEvent *fe = &eventLoop->events[fd]; if (fe->mask == AE_NONE) return; fe->mask = fe->mask & (~mask); if (fd == eventLoop->maxfd && fe->mask == AE_NONE) { /* Update the max fd */ int j; for (j = eventLoop->maxfd-1; j >= 0; j--) if (eventLoop->events[j].mask != AE_NONE) break; eventLoop->maxfd = j; } aeApiDelEvent(eventLoop, fd, mask); } int aeGetFileEvents(aeEventLoop *eventLoop, int fd) { if (fd >= eventLoop->setsize) return 0; aeFileEvent *fe = &eventLoop->events[fd]; return fe->mask; } static void aeGetTime(long *seconds, long *milliseconds) { struct timeval tv; gettimeofday(&tv, NULL); *seconds = tv.tv_sec; *milliseconds = tv.tv_usec/1000; } static void aeAddMillisecondsToNow(long long milliseconds, long *sec, long *ms) { long cur_sec, cur_ms, when_sec, when_ms; aeGetTime(&cur_sec, &cur_ms); when_sec = cur_sec + milliseconds/1000; when_ms = cur_ms + milliseconds%1000; if (when_ms >= 1000) { when_sec ++; when_ms -= 1000; } *sec = when_sec; *ms = when_ms; } long long aeCreateTimeEvent(aeEventLoop *eventLoop, long long milliseconds, aeTimeProc *proc, void *clientData, aeEventFinalizerProc *finalizerProc) { long long id = eventLoop->timeEventNextId++; aeTimeEvent *te; te = zmalloc(sizeof(*te)); if (te == NULL) return AE_ERR; te->id = id; aeAddMillisecondsToNow(milliseconds,&te->when_sec,&te->when_ms); te->timeProc = proc; te->finalizerProc = finalizerProc; te->clientData = clientData; te->next = eventLoop->timeEventHead; eventLoop->timeEventHead = te; return id; } int aeDeleteTimeEvent(aeEventLoop *eventLoop, long long id) { aeTimeEvent *te, *prev = NULL; te = eventLoop->timeEventHead; while(te) { if (te->id == id) { if (prev == NULL) eventLoop->timeEventHead = te->next; else prev->next = te->next; if (te->finalizerProc) te->finalizerProc(eventLoop, te->clientData); zfree(te); return AE_OK; } prev = te; te = te->next; } return AE_ERR; /* NO event with the specified ID found */ } /* Search the first timer to fire. * This operation is useful to know how many time the select can be * put in sleep without to delay any event. * If there are no timers NULL is returned. * * Note that's O(N) since time events are unsorted. * Possible optimizations (not needed by Redis so far, but...): * 1) Insert the event in order, so that the nearest is just the head. * Much better but still insertion or deletion of timers is O(N). * 2) Use a skiplist to have this operation as O(1) and insertion as O(log(N)). */ static aeTimeEvent *aeSearchNearestTimer(aeEventLoop *eventLoop) { aeTimeEvent *te = eventLoop->timeEventHead; aeTimeEvent *nearest = NULL; while(te) { if (!nearest || te->when_sec < nearest->when_sec || (te->when_sec == nearest->when_sec && te->when_ms < nearest->when_ms)) nearest = te; te = te->next; } return nearest; } /* Process time events */ static int processTimeEvents(aeEventLoop *eventLoop) { int processed = 0; aeTimeEvent *te; long long maxId; time_t now = time(NULL); /* If the system clock is moved to the future, and then set back to the * right value, time events may be delayed in a random way. Often this * means that scheduled operations will not be performed soon enough. * * Here we try to detect system clock skews, and force all the time * events to be processed ASAP when this happens: the idea is that * processing events earlier is less dangerous than delaying them * indefinitely, and practice suggests it is. */ if (now < eventLoop->lastTime) { te = eventLoop->timeEventHead; while(te) { te->when_sec = 0; te = te->next; } } eventLoop->lastTime = now; te = eventLoop->timeEventHead; maxId = eventLoop->timeEventNextId-1; while(te) { long now_sec, now_ms; long long id; if (te->id > maxId) { te = te->next; continue; } aeGetTime(&now_sec, &now_ms); if (now_sec > te->when_sec || (now_sec == te->when_sec && now_ms >= te->when_ms)) { int retval; id = te->id; retval = te->timeProc(eventLoop, id, te->clientData); processed++; /* After an event is processed our time event list may * no longer be the same, so we restart from head. * Still we make sure to don't process events registered * by event handlers itself in order to don't loop forever. * To do so we saved the max ID we want to handle. * * FUTURE OPTIMIZATIONS: * Note that this is NOT great algorithmically. Redis uses * a single time event so it's not a problem but the right * way to do this is to add the new elements on head, and * to flag deleted elements in a special way for later * deletion (putting references to the nodes to delete into * another linked list). */ if (retval != AE_NOMORE) { aeAddMillisecondsToNow(retval,&te->when_sec,&te->when_ms); } else { aeDeleteTimeEvent(eventLoop, id); } te = eventLoop->timeEventHead; } else { te = te->next; } } return processed; } /* Process every pending time event, then every pending file event * (that may be registered by time event callbacks just processed). * Without special flags the function sleeps until some file event * fires, or when the next time event occurs (if any). * * If flags is 0, the function does nothing and returns. * if flags has AE_ALL_EVENTS set, all the kind of events are processed. * if flags has AE_FILE_EVENTS set, file events are processed. * if flags has AE_TIME_EVENTS set, time events are processed. * if flags has AE_DONT_WAIT set the function returns ASAP until all * the events that's possible to process without to wait are processed. * * The function returns the number of events processed. */ int aeProcessEvents(aeEventLoop *eventLoop, int flags) { int processed = 0, numevents; /* Nothing to do? return ASAP */ if (!(flags & AE_TIME_EVENTS) && !(flags & AE_FILE_EVENTS)) return 0; /* Note that we want call select() even if there are no * file events to process as long as we want to process time * events, in order to sleep until the next time event is ready * to fire. */ if (eventLoop->maxfd != -1 || ((flags & AE_TIME_EVENTS) && !(flags & AE_DONT_WAIT))) { int j; aeTimeEvent *shortest = NULL; struct timeval tv, *tvp; if (flags & AE_TIME_EVENTS && !(flags & AE_DONT_WAIT)) shortest = aeSearchNearestTimer(eventLoop); if (shortest) { long now_sec, now_ms; /* Calculate the time missing for the nearest * timer to fire. */ aeGetTime(&now_sec, &now_ms); tvp = &tv; tvp->tv_sec = shortest->when_sec - now_sec; if (shortest->when_ms < now_ms) { tvp->tv_usec = ((shortest->when_ms+1000) - now_ms)*1000; tvp->tv_sec --; } else { tvp->tv_usec = (shortest->when_ms - now_ms)*1000; } if (tvp->tv_sec < 0) tvp->tv_sec = 0; if (tvp->tv_usec < 0) tvp->tv_usec = 0; } else { /* If we have to check for events but need to return * ASAP because of AE_DONT_WAIT we need to set the timeout * to zero */ if (flags & AE_DONT_WAIT) { tv.tv_sec = tv.tv_usec = 0; tvp = &tv; } else { /* Otherwise we can block */ tvp = NULL; /* wait forever */ } } numevents = aeApiPoll(eventLoop, tvp); for (j = 0; j < numevents; j++) { aeFileEvent *fe = &eventLoop->events[eventLoop->fired[j].fd]; int mask = eventLoop->fired[j].mask; int fd = eventLoop->fired[j].fd; int rfired = 0; /* note the fe->mask & mask & ... code: maybe an already processed * event removed an element that fired and we still didn't * processed, so we check if the event is still valid. */ if (fe->mask & mask & AE_READABLE) { rfired = 1; fe->rfileProc(eventLoop,fd,fe->clientData,mask); } if (fe->mask & mask & AE_WRITABLE) { if (!rfired || fe->wfileProc != fe->rfileProc) fe->wfileProc(eventLoop,fd,fe->clientData,mask); } processed++; } } /* Check time events */ if (flags & AE_TIME_EVENTS) processed += processTimeEvents(eventLoop); return processed; /* return the number of processed file/time events */ } /* Wait for milliseconds until the given file descriptor becomes * writable/readable/exception */ int aeWait(int fd, int mask, long long milliseconds) { struct pollfd pfd; int retmask = 0, retval; memset(&pfd, 0, sizeof(pfd)); pfd.fd = fd; if (mask & AE_READABLE) pfd.events |= POLLIN; if (mask & AE_WRITABLE) pfd.events |= POLLOUT; if ((retval = poll(&pfd, 1, milliseconds))== 1) { if (pfd.revents & POLLIN) retmask |= AE_READABLE; if (pfd.revents & POLLOUT) retmask |= AE_WRITABLE; if (pfd.revents & POLLERR) retmask |= AE_WRITABLE; if (pfd.revents & POLLHUP) retmask |= AE_WRITABLE; return retmask; } else { return retval; } } void aeMain(aeEventLoop *eventLoop) { eventLoop->stop = 0; while (!eventLoop->stop) { if (eventLoop->beforesleep != NULL) eventLoop->beforesleep(eventLoop); aeProcessEvents(eventLoop, AE_ALL_EVENTS); } } char *aeGetApiName(void) { return aeApiName(); } void aeSetBeforeSleepProc(aeEventLoop *eventLoop, aeBeforeSleepProc *beforesleep) { eventLoop->beforesleep = beforesleep; } redis-2.6.16/src/ae.h000066400000000000000000000106631220734223100142430ustar00rootroot00000000000000/* A simple event-driven programming library. Originally I wrote this code * for the Jim's event-loop (Jim is a Tcl interpreter) but later translated * it in form of a library for easy reuse. * * Copyright (c) 2006-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __AE_H__ #define __AE_H__ #define AE_OK 0 #define AE_ERR -1 #define AE_NONE 0 #define AE_READABLE 1 #define AE_WRITABLE 2 #define AE_FILE_EVENTS 1 #define AE_TIME_EVENTS 2 #define AE_ALL_EVENTS (AE_FILE_EVENTS|AE_TIME_EVENTS) #define AE_DONT_WAIT 4 #define AE_NOMORE -1 /* Macros */ #define AE_NOTUSED(V) ((void) V) struct aeEventLoop; /* Types and data structures */ typedef void aeFileProc(struct aeEventLoop *eventLoop, int fd, void *clientData, int mask); typedef int aeTimeProc(struct aeEventLoop *eventLoop, long long id, void *clientData); typedef void aeEventFinalizerProc(struct aeEventLoop *eventLoop, void *clientData); typedef void aeBeforeSleepProc(struct aeEventLoop *eventLoop); /* File event structure */ typedef struct aeFileEvent { int mask; /* one of AE_(READABLE|WRITABLE) */ aeFileProc *rfileProc; aeFileProc *wfileProc; void *clientData; } aeFileEvent; /* Time event structure */ typedef struct aeTimeEvent { long long id; /* time event identifier. */ long when_sec; /* seconds */ long when_ms; /* milliseconds */ aeTimeProc *timeProc; aeEventFinalizerProc *finalizerProc; void *clientData; struct aeTimeEvent *next; } aeTimeEvent; /* A fired event */ typedef struct aeFiredEvent { int fd; int mask; } aeFiredEvent; /* State of an event based program */ typedef struct aeEventLoop { int maxfd; /* highest file descriptor currently registered */ int setsize; /* max number of file descriptors tracked */ long long timeEventNextId; time_t lastTime; /* Used to detect system clock skew */ aeFileEvent *events; /* Registered events */ aeFiredEvent *fired; /* Fired events */ aeTimeEvent *timeEventHead; int stop; void *apidata; /* This is used for polling API specific data */ aeBeforeSleepProc *beforesleep; } aeEventLoop; /* Prototypes */ aeEventLoop *aeCreateEventLoop(int setsize); void aeDeleteEventLoop(aeEventLoop *eventLoop); void aeStop(aeEventLoop *eventLoop); int aeCreateFileEvent(aeEventLoop *eventLoop, int fd, int mask, aeFileProc *proc, void *clientData); void aeDeleteFileEvent(aeEventLoop *eventLoop, int fd, int mask); int aeGetFileEvents(aeEventLoop *eventLoop, int fd); long long aeCreateTimeEvent(aeEventLoop *eventLoop, long long milliseconds, aeTimeProc *proc, void *clientData, aeEventFinalizerProc *finalizerProc); int aeDeleteTimeEvent(aeEventLoop *eventLoop, long long id); int aeProcessEvents(aeEventLoop *eventLoop, int flags); int aeWait(int fd, int mask, long long milliseconds); void aeMain(aeEventLoop *eventLoop); char *aeGetApiName(void); void aeSetBeforeSleepProc(aeEventLoop *eventLoop, aeBeforeSleepProc *beforesleep); #endif redis-2.6.16/src/ae_epoll.c000066400000000000000000000111001220734223100154140ustar00rootroot00000000000000/* Linux epoll(2) based ae.c module * * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include typedef struct aeApiState { int epfd; struct epoll_event *events; } aeApiState; static int aeApiCreate(aeEventLoop *eventLoop) { aeApiState *state = zmalloc(sizeof(aeApiState)); if (!state) return -1; state->events = zmalloc(sizeof(struct epoll_event)*eventLoop->setsize); if (!state->events) { zfree(state); return -1; } state->epfd = epoll_create(1024); /* 1024 is just an hint for the kernel */ if (state->epfd == -1) { zfree(state->events); zfree(state); return -1; } eventLoop->apidata = state; return 0; } static void aeApiFree(aeEventLoop *eventLoop) { aeApiState *state = eventLoop->apidata; close(state->epfd); zfree(state->events); zfree(state); } static int aeApiAddEvent(aeEventLoop *eventLoop, int fd, int mask) { aeApiState *state = eventLoop->apidata; struct epoll_event ee; /* If the fd was already monitored for some event, we need a MOD * operation. Otherwise we need an ADD operation. */ int op = eventLoop->events[fd].mask == AE_NONE ? EPOLL_CTL_ADD : EPOLL_CTL_MOD; ee.events = 0; mask |= eventLoop->events[fd].mask; /* Merge old events */ if (mask & AE_READABLE) ee.events |= EPOLLIN; if (mask & AE_WRITABLE) ee.events |= EPOLLOUT; ee.data.u64 = 0; /* avoid valgrind warning */ ee.data.fd = fd; if (epoll_ctl(state->epfd,op,fd,&ee) == -1) return -1; return 0; } static void aeApiDelEvent(aeEventLoop *eventLoop, int fd, int delmask) { aeApiState *state = eventLoop->apidata; struct epoll_event ee; int mask = eventLoop->events[fd].mask & (~delmask); ee.events = 0; if (mask & AE_READABLE) ee.events |= EPOLLIN; if (mask & AE_WRITABLE) ee.events |= EPOLLOUT; ee.data.u64 = 0; /* avoid valgrind warning */ ee.data.fd = fd; if (mask != AE_NONE) { epoll_ctl(state->epfd,EPOLL_CTL_MOD,fd,&ee); } else { /* Note, Kernel < 2.6.9 requires a non null event pointer even for * EPOLL_CTL_DEL. */ epoll_ctl(state->epfd,EPOLL_CTL_DEL,fd,&ee); } } static int aeApiPoll(aeEventLoop *eventLoop, struct timeval *tvp) { aeApiState *state = eventLoop->apidata; int retval, numevents = 0; retval = epoll_wait(state->epfd,state->events,eventLoop->setsize, tvp ? (tvp->tv_sec*1000 + tvp->tv_usec/1000) : -1); if (retval > 0) { int j; numevents = retval; for (j = 0; j < numevents; j++) { int mask = 0; struct epoll_event *e = state->events+j; if (e->events & EPOLLIN) mask |= AE_READABLE; if (e->events & EPOLLOUT) mask |= AE_WRITABLE; if (e->events & EPOLLERR) mask |= AE_WRITABLE; if (e->events & EPOLLHUP) mask |= AE_WRITABLE; eventLoop->fired[j].fd = e->data.fd; eventLoop->fired[j].mask = mask; } } return numevents; } static char *aeApiName(void) { return "epoll"; } redis-2.6.16/src/ae_evport.c000066400000000000000000000251121220734223100156300ustar00rootroot00000000000000/* ae.c module for illumos event ports. * * Copyright (c) 2012, Joyent, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include static int evport_debug = 0; /* * This file implements the ae API using event ports, present on Solaris-based * systems since Solaris 10. Using the event port interface, we associate file * descriptors with the port. Each association also includes the set of poll(2) * events that the consumer is interested in (e.g., POLLIN and POLLOUT). * * There's one tricky piece to this implementation: when we return events via * aeApiPoll, the corresponding file descriptors become dissociated from the * port. This is necessary because poll events are level-triggered, so if the * fd didn't become dissociated, it would immediately fire another event since * the underlying state hasn't changed yet. We must re-associate the file * descriptor, but only after we know that our caller has actually read from it. * The ae API does not tell us exactly when that happens, but we do know that * it must happen by the time aeApiPoll is called again. Our solution is to * keep track of the last fds returned by aeApiPoll and re-associate them next * time aeApiPoll is invoked. * * To summarize, in this module, each fd association is EITHER (a) represented * only via the in-kernel association OR (b) represented by pending_fds and * pending_masks. (b) is only true for the last fds we returned from aeApiPoll, * and only until we enter aeApiPoll again (at which point we restore the * in-kernel association). */ #define MAX_EVENT_BATCHSZ 512 typedef struct aeApiState { int portfd; /* event port */ int npending; /* # of pending fds */ int pending_fds[MAX_EVENT_BATCHSZ]; /* pending fds */ int pending_masks[MAX_EVENT_BATCHSZ]; /* pending fds' masks */ } aeApiState; static int aeApiCreate(aeEventLoop *eventLoop) { int i; aeApiState *state = zmalloc(sizeof(aeApiState)); if (!state) return -1; state->portfd = port_create(); if (state->portfd == -1) { zfree(state); return -1; } state->npending = 0; for (i = 0; i < MAX_EVENT_BATCHSZ; i++) { state->pending_fds[i] = -1; state->pending_masks[i] = AE_NONE; } eventLoop->apidata = state; return 0; } static void aeApiFree(aeEventLoop *eventLoop) { aeApiState *state = eventLoop->apidata; close(state->portfd); zfree(state); } static int aeApiLookupPending(aeApiState *state, int fd) { int i; for (i = 0; i < state->npending; i++) { if (state->pending_fds[i] == fd) return (i); } return (-1); } /* * Helper function to invoke port_associate for the given fd and mask. */ static int aeApiAssociate(const char *where, int portfd, int fd, int mask) { int events = 0; int rv, err; if (mask & AE_READABLE) events |= POLLIN; if (mask & AE_WRITABLE) events |= POLLOUT; if (evport_debug) fprintf(stderr, "%s: port_associate(%d, 0x%x) = ", where, fd, events); rv = port_associate(portfd, PORT_SOURCE_FD, fd, events, (void *)(uintptr_t)mask); err = errno; if (evport_debug) fprintf(stderr, "%d (%s)\n", rv, rv == 0 ? "no error" : strerror(err)); if (rv == -1) { fprintf(stderr, "%s: port_associate: %s\n", where, strerror(err)); if (err == EAGAIN) fprintf(stderr, "aeApiAssociate: event port limit exceeded."); } return rv; } static int aeApiAddEvent(aeEventLoop *eventLoop, int fd, int mask) { aeApiState *state = eventLoop->apidata; int fullmask, pfd; if (evport_debug) fprintf(stderr, "aeApiAddEvent: fd %d mask 0x%x\n", fd, mask); /* * Since port_associate's "events" argument replaces any existing events, we * must be sure to include whatever events are already associated when * we call port_associate() again. */ fullmask = mask | eventLoop->events[fd].mask; pfd = aeApiLookupPending(state, fd); if (pfd != -1) { /* * This fd was recently returned from aeApiPoll. It should be safe to * assume that the consumer has processed that poll event, but we play * it safer by simply updating pending_mask. The fd will be * re-associated as usual when aeApiPoll is called again. */ if (evport_debug) fprintf(stderr, "aeApiAddEvent: adding to pending fd %d\n", fd); state->pending_masks[pfd] |= fullmask; return 0; } return (aeApiAssociate("aeApiAddEvent", state->portfd, fd, fullmask)); } static void aeApiDelEvent(aeEventLoop *eventLoop, int fd, int mask) { aeApiState *state = eventLoop->apidata; int fullmask, pfd; if (evport_debug) fprintf(stderr, "del fd %d mask 0x%x\n", fd, mask); pfd = aeApiLookupPending(state, fd); if (pfd != -1) { if (evport_debug) fprintf(stderr, "deleting event from pending fd %d\n", fd); /* * This fd was just returned from aeApiPoll, so it's not currently * associated with the port. All we need to do is update * pending_mask appropriately. */ state->pending_masks[pfd] &= ~mask; if (state->pending_masks[pfd] == AE_NONE) state->pending_fds[pfd] = -1; return; } /* * The fd is currently associated with the port. Like with the add case * above, we must look at the full mask for the file descriptor before * updating that association. We don't have a good way of knowing what the * events are without looking into the eventLoop state directly. We rely on * the fact that our caller has already updated the mask in the eventLoop. */ fullmask = eventLoop->events[fd].mask; if (fullmask == AE_NONE) { /* * We're removing *all* events, so use port_dissociate to remove the * association completely. Failure here indicates a bug. */ if (evport_debug) fprintf(stderr, "aeApiDelEvent: port_dissociate(%d)\n", fd); if (port_dissociate(state->portfd, PORT_SOURCE_FD, fd) != 0) { perror("aeApiDelEvent: port_dissociate"); abort(); /* will not return */ } } else if (aeApiAssociate("aeApiDelEvent", state->portfd, fd, fullmask) != 0) { /* * ENOMEM is a potentially transient condition, but the kernel won't * generally return it unless things are really bad. EAGAIN indicates * we've reached an resource limit, for which it doesn't make sense to * retry (counter-intuitively). All other errors indicate a bug. In any * of these cases, the best we can do is to abort. */ abort(); /* will not return */ } } static int aeApiPoll(aeEventLoop *eventLoop, struct timeval *tvp) { aeApiState *state = eventLoop->apidata; struct timespec timeout, *tsp; int mask, i; uint_t nevents; port_event_t event[MAX_EVENT_BATCHSZ]; /* * If we've returned fd events before, we must re-associate them with the * port now, before calling port_get(). See the block comment at the top of * this file for an explanation of why. */ for (i = 0; i < state->npending; i++) { if (state->pending_fds[i] == -1) /* This fd has since been deleted. */ continue; if (aeApiAssociate("aeApiPoll", state->portfd, state->pending_fds[i], state->pending_masks[i]) != 0) { /* See aeApiDelEvent for why this case is fatal. */ abort(); } state->pending_masks[i] = AE_NONE; state->pending_fds[i] = -1; } state->npending = 0; if (tvp != NULL) { timeout.tv_sec = tvp->tv_sec; timeout.tv_nsec = tvp->tv_usec * 1000; tsp = &timeout; } else { tsp = NULL; } /* * port_getn can return with errno == ETIME having returned some events (!). * So if we get ETIME, we check nevents, too. */ nevents = 1; if (port_getn(state->portfd, event, MAX_EVENT_BATCHSZ, &nevents, tsp) == -1 && (errno != ETIME || nevents == 0)) { if (errno == ETIME || errno == EINTR) return 0; /* Any other error indicates a bug. */ perror("aeApiPoll: port_get"); abort(); } state->npending = nevents; for (i = 0; i < nevents; i++) { mask = 0; if (event[i].portev_events & POLLIN) mask |= AE_READABLE; if (event[i].portev_events & POLLOUT) mask |= AE_WRITABLE; eventLoop->fired[i].fd = event[i].portev_object; eventLoop->fired[i].mask = mask; if (evport_debug) fprintf(stderr, "aeApiPoll: fd %d mask 0x%x\n", (int)event[i].portev_object, mask); state->pending_fds[i] = event[i].portev_object; state->pending_masks[i] = (uintptr_t)event[i].portev_user; } return nevents; } static char *aeApiName(void) { return "evport"; } redis-2.6.16/src/ae_kqueue.c000066400000000000000000000104741220734223100156150ustar00rootroot00000000000000/* Kqueue(2)-based ae.c module * * Copyright (C) 2009 Harish Mallipeddi - harish.mallipeddi@gmail.com * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include typedef struct aeApiState { int kqfd; struct kevent *events; } aeApiState; static int aeApiCreate(aeEventLoop *eventLoop) { aeApiState *state = zmalloc(sizeof(aeApiState)); if (!state) return -1; state->events = zmalloc(sizeof(struct kevent)*eventLoop->setsize); if (!state->events) { zfree(state); return -1; } state->kqfd = kqueue(); if (state->kqfd == -1) { zfree(state->events); zfree(state); return -1; } eventLoop->apidata = state; return 0; } static void aeApiFree(aeEventLoop *eventLoop) { aeApiState *state = eventLoop->apidata; close(state->kqfd); zfree(state->events); zfree(state); } static int aeApiAddEvent(aeEventLoop *eventLoop, int fd, int mask) { aeApiState *state = eventLoop->apidata; struct kevent ke; if (mask & AE_READABLE) { EV_SET(&ke, fd, EVFILT_READ, EV_ADD, 0, 0, NULL); if (kevent(state->kqfd, &ke, 1, NULL, 0, NULL) == -1) return -1; } if (mask & AE_WRITABLE) { EV_SET(&ke, fd, EVFILT_WRITE, EV_ADD, 0, 0, NULL); if (kevent(state->kqfd, &ke, 1, NULL, 0, NULL) == -1) return -1; } return 0; } static void aeApiDelEvent(aeEventLoop *eventLoop, int fd, int mask) { aeApiState *state = eventLoop->apidata; struct kevent ke; if (mask & AE_READABLE) { EV_SET(&ke, fd, EVFILT_READ, EV_DELETE, 0, 0, NULL); kevent(state->kqfd, &ke, 1, NULL, 0, NULL); } if (mask & AE_WRITABLE) { EV_SET(&ke, fd, EVFILT_WRITE, EV_DELETE, 0, 0, NULL); kevent(state->kqfd, &ke, 1, NULL, 0, NULL); } } static int aeApiPoll(aeEventLoop *eventLoop, struct timeval *tvp) { aeApiState *state = eventLoop->apidata; int retval, numevents = 0; if (tvp != NULL) { struct timespec timeout; timeout.tv_sec = tvp->tv_sec; timeout.tv_nsec = tvp->tv_usec * 1000; retval = kevent(state->kqfd, NULL, 0, state->events, eventLoop->setsize, &timeout); } else { retval = kevent(state->kqfd, NULL, 0, state->events, eventLoop->setsize, NULL); } if (retval > 0) { int j; numevents = retval; for(j = 0; j < numevents; j++) { int mask = 0; struct kevent *e = state->events+j; if (e->filter == EVFILT_READ) mask |= AE_READABLE; if (e->filter == EVFILT_WRITE) mask |= AE_WRITABLE; eventLoop->fired[j].fd = e->ident; eventLoop->fired[j].mask = mask; } } return numevents; } static char *aeApiName(void) { return "kqueue"; } redis-2.6.16/src/ae_select.c000066400000000000000000000070451220734223100155750ustar00rootroot00000000000000/* Select()-based ae.c module. * * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include typedef struct aeApiState { fd_set rfds, wfds; /* We need to have a copy of the fd sets as it's not safe to reuse * FD sets after select(). */ fd_set _rfds, _wfds; } aeApiState; static int aeApiCreate(aeEventLoop *eventLoop) { aeApiState *state = zmalloc(sizeof(aeApiState)); if (!state) return -1; FD_ZERO(&state->rfds); FD_ZERO(&state->wfds); eventLoop->apidata = state; return 0; } static void aeApiFree(aeEventLoop *eventLoop) { zfree(eventLoop->apidata); } static int aeApiAddEvent(aeEventLoop *eventLoop, int fd, int mask) { aeApiState *state = eventLoop->apidata; if (mask & AE_READABLE) FD_SET(fd,&state->rfds); if (mask & AE_WRITABLE) FD_SET(fd,&state->wfds); return 0; } static void aeApiDelEvent(aeEventLoop *eventLoop, int fd, int mask) { aeApiState *state = eventLoop->apidata; if (mask & AE_READABLE) FD_CLR(fd,&state->rfds); if (mask & AE_WRITABLE) FD_CLR(fd,&state->wfds); } static int aeApiPoll(aeEventLoop *eventLoop, struct timeval *tvp) { aeApiState *state = eventLoop->apidata; int retval, j, numevents = 0; memcpy(&state->_rfds,&state->rfds,sizeof(fd_set)); memcpy(&state->_wfds,&state->wfds,sizeof(fd_set)); retval = select(eventLoop->maxfd+1, &state->_rfds,&state->_wfds,NULL,tvp); if (retval > 0) { for (j = 0; j <= eventLoop->maxfd; j++) { int mask = 0; aeFileEvent *fe = &eventLoop->events[j]; if (fe->mask == AE_NONE) continue; if (fe->mask & AE_READABLE && FD_ISSET(j,&state->_rfds)) mask |= AE_READABLE; if (fe->mask & AE_WRITABLE && FD_ISSET(j,&state->_wfds)) mask |= AE_WRITABLE; eventLoop->fired[numevents].fd = j; eventLoop->fired[numevents].mask = mask; numevents++; } } return numevents; } static char *aeApiName(void) { return "select"; } redis-2.6.16/src/anet.c000066400000000000000000000310061220734223100145720ustar00rootroot00000000000000/* anet.c -- Basic TCP socket stuff made a bit less boring * * Copyright (c) 2006-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "fmacros.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "anet.h" static void anetSetError(char *err, const char *fmt, ...) { va_list ap; if (!err) return; va_start(ap, fmt); vsnprintf(err, ANET_ERR_LEN, fmt, ap); va_end(ap); } int anetNonBlock(char *err, int fd) { int flags; /* Set the socket non-blocking. * Note that fcntl(2) for F_GETFL and F_SETFL can't be * interrupted by a signal. */ if ((flags = fcntl(fd, F_GETFL)) == -1) { anetSetError(err, "fcntl(F_GETFL): %s", strerror(errno)); return ANET_ERR; } if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) { anetSetError(err, "fcntl(F_SETFL,O_NONBLOCK): %s", strerror(errno)); return ANET_ERR; } return ANET_OK; } /* Set TCP keep alive option to detect dead peers. The interval option * is only used for Linux as we are using Linux-specific APIs to set * the probe send time, interval, and count. */ int anetKeepAlive(char *err, int fd, int interval) { int val = 1; if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &val, sizeof(val)) == -1) { anetSetError(err, "setsockopt SO_KEEPALIVE: %s", strerror(errno)); return ANET_ERR; } #ifdef __linux__ /* Default settings are more or less garbage, with the keepalive time * set to 7200 by default on Linux. Modify settings to make the feature * actually useful. */ /* Send first probe after interval. */ val = interval; if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof(val)) < 0) { anetSetError(err, "setsockopt TCP_KEEPIDLE: %s\n", strerror(errno)); return ANET_ERR; } /* Send next probes after the specified interval. Note that we set the * delay as interval / 3, as we send three probes before detecting * an error (see the next setsockopt call). */ val = interval/3; if (val == 0) val = 1; if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof(val)) < 0) { anetSetError(err, "setsockopt TCP_KEEPINTVL: %s\n", strerror(errno)); return ANET_ERR; } /* Consider the socket in error state after three we send three ACK * probes without getting a reply. */ val = 3; if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof(val)) < 0) { anetSetError(err, "setsockopt TCP_KEEPCNT: %s\n", strerror(errno)); return ANET_ERR; } #endif return ANET_OK; } static int anetSetTcpNoDelay(char *err, int fd, int val) { if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val)) == -1) { anetSetError(err, "setsockopt TCP_NODELAY: %s", strerror(errno)); return ANET_ERR; } return ANET_OK; } int anetEnableTcpNoDelay(char *err, int fd) { return anetSetTcpNoDelay(err, fd, 1); } int anetDisableTcpNoDelay(char *err, int fd) { return anetSetTcpNoDelay(err, fd, 0); } int anetSetSendBuffer(char *err, int fd, int buffsize) { if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &buffsize, sizeof(buffsize)) == -1) { anetSetError(err, "setsockopt SO_SNDBUF: %s", strerror(errno)); return ANET_ERR; } return ANET_OK; } int anetTcpKeepAlive(char *err, int fd) { int yes = 1; if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &yes, sizeof(yes)) == -1) { anetSetError(err, "setsockopt SO_KEEPALIVE: %s", strerror(errno)); return ANET_ERR; } return ANET_OK; } int anetResolve(char *err, char *host, char *ipbuf) { struct sockaddr_in sa; sa.sin_family = AF_INET; if (inet_aton(host, &sa.sin_addr) == 0) { struct hostent *he; he = gethostbyname(host); if (he == NULL) { anetSetError(err, "can't resolve: %s", host); return ANET_ERR; } memcpy(&sa.sin_addr, he->h_addr, sizeof(struct in_addr)); } strcpy(ipbuf,inet_ntoa(sa.sin_addr)); return ANET_OK; } static int anetCreateSocket(char *err, int domain) { int s, on = 1; if ((s = socket(domain, SOCK_STREAM, 0)) == -1) { anetSetError(err, "creating socket: %s", strerror(errno)); return ANET_ERR; } /* Make sure connection-intensive things like the redis benchmark * will be able to close/open sockets a zillion of times */ if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) == -1) { anetSetError(err, "setsockopt SO_REUSEADDR: %s", strerror(errno)); return ANET_ERR; } return s; } #define ANET_CONNECT_NONE 0 #define ANET_CONNECT_NONBLOCK 1 static int anetTcpGenericConnect(char *err, char *addr, int port, int flags) { int s; struct sockaddr_in sa; if ((s = anetCreateSocket(err,AF_INET)) == ANET_ERR) return ANET_ERR; sa.sin_family = AF_INET; sa.sin_port = htons(port); if (inet_aton(addr, &sa.sin_addr) == 0) { struct hostent *he; he = gethostbyname(addr); if (he == NULL) { anetSetError(err, "can't resolve: %s", addr); close(s); return ANET_ERR; } memcpy(&sa.sin_addr, he->h_addr, sizeof(struct in_addr)); } if (flags & ANET_CONNECT_NONBLOCK) { if (anetNonBlock(err,s) != ANET_OK) return ANET_ERR; } if (connect(s, (struct sockaddr*)&sa, sizeof(sa)) == -1) { if (errno == EINPROGRESS && flags & ANET_CONNECT_NONBLOCK) return s; anetSetError(err, "connect: %s", strerror(errno)); close(s); return ANET_ERR; } return s; } int anetTcpConnect(char *err, char *addr, int port) { return anetTcpGenericConnect(err,addr,port,ANET_CONNECT_NONE); } int anetTcpNonBlockConnect(char *err, char *addr, int port) { return anetTcpGenericConnect(err,addr,port,ANET_CONNECT_NONBLOCK); } int anetUnixGenericConnect(char *err, char *path, int flags) { int s; struct sockaddr_un sa; if ((s = anetCreateSocket(err,AF_LOCAL)) == ANET_ERR) return ANET_ERR; sa.sun_family = AF_LOCAL; strncpy(sa.sun_path,path,sizeof(sa.sun_path)-1); if (flags & ANET_CONNECT_NONBLOCK) { if (anetNonBlock(err,s) != ANET_OK) return ANET_ERR; } if (connect(s,(struct sockaddr*)&sa,sizeof(sa)) == -1) { if (errno == EINPROGRESS && flags & ANET_CONNECT_NONBLOCK) return s; anetSetError(err, "connect: %s", strerror(errno)); close(s); return ANET_ERR; } return s; } int anetUnixConnect(char *err, char *path) { return anetUnixGenericConnect(err,path,ANET_CONNECT_NONE); } int anetUnixNonBlockConnect(char *err, char *path) { return anetUnixGenericConnect(err,path,ANET_CONNECT_NONBLOCK); } /* Like read(2) but make sure 'count' is read before to return * (unless error or EOF condition is encountered) */ int anetRead(int fd, char *buf, int count) { int nread, totlen = 0; while(totlen != count) { nread = read(fd,buf,count-totlen); if (nread == 0) return totlen; if (nread == -1) return -1; totlen += nread; buf += nread; } return totlen; } /* Like write(2) but make sure 'count' is read before to return * (unless error is encountered) */ int anetWrite(int fd, char *buf, int count) { int nwritten, totlen = 0; while(totlen != count) { nwritten = write(fd,buf,count-totlen); if (nwritten == 0) return totlen; if (nwritten == -1) return -1; totlen += nwritten; buf += nwritten; } return totlen; } static int anetListen(char *err, int s, struct sockaddr *sa, socklen_t len) { if (bind(s,sa,len) == -1) { anetSetError(err, "bind: %s", strerror(errno)); close(s); return ANET_ERR; } /* Use a backlog of 512 entries. We pass 511 to the listen() call because * the kernel does: backlogsize = roundup_pow_of_two(backlogsize + 1); * which will thus give us a backlog of 512 entries */ if (listen(s, 511) == -1) { anetSetError(err, "listen: %s", strerror(errno)); close(s); return ANET_ERR; } return ANET_OK; } int anetTcpServer(char *err, int port, char *bindaddr) { int s; struct sockaddr_in sa; if ((s = anetCreateSocket(err,AF_INET)) == ANET_ERR) return ANET_ERR; memset(&sa,0,sizeof(sa)); sa.sin_family = AF_INET; sa.sin_port = htons(port); sa.sin_addr.s_addr = htonl(INADDR_ANY); if (bindaddr && inet_aton(bindaddr, &sa.sin_addr) == 0) { anetSetError(err, "invalid bind address"); close(s); return ANET_ERR; } if (anetListen(err,s,(struct sockaddr*)&sa,sizeof(sa)) == ANET_ERR) return ANET_ERR; return s; } int anetUnixServer(char *err, char *path, mode_t perm) { int s; struct sockaddr_un sa; if ((s = anetCreateSocket(err,AF_LOCAL)) == ANET_ERR) return ANET_ERR; memset(&sa,0,sizeof(sa)); sa.sun_family = AF_LOCAL; strncpy(sa.sun_path,path,sizeof(sa.sun_path)-1); if (anetListen(err,s,(struct sockaddr*)&sa,sizeof(sa)) == ANET_ERR) return ANET_ERR; if (perm) chmod(sa.sun_path, perm); return s; } static int anetGenericAccept(char *err, int s, struct sockaddr *sa, socklen_t *len) { int fd; while(1) { fd = accept(s,sa,len); if (fd == -1) { if (errno == EINTR) continue; else { anetSetError(err, "accept: %s", strerror(errno)); return ANET_ERR; } } break; } return fd; } int anetTcpAccept(char *err, int s, char *ip, int *port) { int fd; struct sockaddr_in sa; socklen_t salen = sizeof(sa); if ((fd = anetGenericAccept(err,s,(struct sockaddr*)&sa,&salen)) == ANET_ERR) return ANET_ERR; if (ip) strcpy(ip,inet_ntoa(sa.sin_addr)); if (port) *port = ntohs(sa.sin_port); return fd; } int anetUnixAccept(char *err, int s) { int fd; struct sockaddr_un sa; socklen_t salen = sizeof(sa); if ((fd = anetGenericAccept(err,s,(struct sockaddr*)&sa,&salen)) == ANET_ERR) return ANET_ERR; return fd; } int anetPeerToString(int fd, char *ip, int *port) { struct sockaddr_in sa; socklen_t salen = sizeof(sa); if (getpeername(fd,(struct sockaddr*)&sa,&salen) == -1) { *port = 0; ip[0] = '?'; ip[1] = '\0'; return -1; } if (ip) strcpy(ip,inet_ntoa(sa.sin_addr)); if (port) *port = ntohs(sa.sin_port); return 0; } int anetSockName(int fd, char *ip, int *port) { struct sockaddr_in sa; socklen_t salen = sizeof(sa); if (getsockname(fd,(struct sockaddr*)&sa,&salen) == -1) { *port = 0; ip[0] = '?'; ip[1] = '\0'; return -1; } if (ip) strcpy(ip,inet_ntoa(sa.sin_addr)); if (port) *port = ntohs(sa.sin_port); return 0; } redis-2.6.16/src/anet.h000066400000000000000000000051631220734223100146040ustar00rootroot00000000000000/* anet.c -- Basic TCP socket stuff made a bit less boring * * Copyright (c) 2006-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef ANET_H #define ANET_H #define ANET_OK 0 #define ANET_ERR -1 #define ANET_ERR_LEN 256 #if defined(__sun) #define AF_LOCAL AF_UNIX #endif int anetTcpConnect(char *err, char *addr, int port); int anetTcpNonBlockConnect(char *err, char *addr, int port); int anetUnixConnect(char *err, char *path); int anetUnixNonBlockConnect(char *err, char *path); int anetRead(int fd, char *buf, int count); int anetResolve(char *err, char *host, char *ipbuf); int anetTcpServer(char *err, int port, char *bindaddr); int anetUnixServer(char *err, char *path, mode_t perm); int anetTcpAccept(char *err, int serversock, char *ip, int *port); int anetUnixAccept(char *err, int serversock); int anetWrite(int fd, char *buf, int count); int anetNonBlock(char *err, int fd); int anetEnableTcpNoDelay(char *err, int fd); int anetDisableTcpNoDelay(char *err, int fd); int anetTcpKeepAlive(char *err, int fd); int anetPeerToString(int fd, char *ip, int *port); int anetKeepAlive(char *err, int fd, int interval); #endif redis-2.6.16/src/aof.c000066400000000000000000001314111220734223100144110ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" #include "bio.h" #include "rio.h" #include #include #include #include #include #include #include void aofUpdateCurrentSize(void); /* ---------------------------------------------------------------------------- * AOF rewrite buffer implementation. * * The following code implement a simple buffer used in order to accumulate * changes while the background process is rewriting the AOF file. * * We only need to append, but can't just use realloc with a large block * because 'huge' reallocs are not always handled as one could expect * (via remapping of pages at OS level) but may involve copying data. * * For this reason we use a list of blocks, every block is * AOF_RW_BUF_BLOCK_SIZE bytes. * ------------------------------------------------------------------------- */ #define AOF_RW_BUF_BLOCK_SIZE (1024*1024*10) /* 10 MB per block */ typedef struct aofrwblock { unsigned long used, free; char buf[AOF_RW_BUF_BLOCK_SIZE]; } aofrwblock; /* This function free the old AOF rewrite buffer if needed, and initialize * a fresh new one. It tests for server.aof_rewrite_buf_blocks equal to NULL * so can be used for the first initialization as well. */ void aofRewriteBufferReset(void) { if (server.aof_rewrite_buf_blocks) listRelease(server.aof_rewrite_buf_blocks); server.aof_rewrite_buf_blocks = listCreate(); listSetFreeMethod(server.aof_rewrite_buf_blocks,zfree); } /* Return the current size of the AOF rerwite buffer. */ unsigned long aofRewriteBufferSize(void) { listNode *ln = listLast(server.aof_rewrite_buf_blocks); aofrwblock *block = ln ? ln->value : NULL; if (block == NULL) return 0; unsigned long size = (listLength(server.aof_rewrite_buf_blocks)-1) * AOF_RW_BUF_BLOCK_SIZE; size += block->used; return size; } /* Append data to the AOF rewrite buffer, allocating new blocks if needed. */ void aofRewriteBufferAppend(unsigned char *s, unsigned long len) { listNode *ln = listLast(server.aof_rewrite_buf_blocks); aofrwblock *block = ln ? ln->value : NULL; while(len) { /* If we already got at least an allocated block, try appending * at least some piece into it. */ if (block) { unsigned long thislen = (block->free < len) ? block->free : len; if (thislen) { /* The current block is not already full. */ memcpy(block->buf+block->used, s, thislen); block->used += thislen; block->free -= thislen; s += thislen; len -= thislen; } } if (len) { /* First block to allocate, or need another block. */ int numblocks; block = zmalloc(sizeof(*block)); block->free = AOF_RW_BUF_BLOCK_SIZE; block->used = 0; listAddNodeTail(server.aof_rewrite_buf_blocks,block); /* Log every time we cross more 10 or 100 blocks, respectively * as a notice or warning. */ numblocks = listLength(server.aof_rewrite_buf_blocks); if (((numblocks+1) % 10) == 0) { int level = ((numblocks+1) % 100) == 0 ? REDIS_WARNING : REDIS_NOTICE; redisLog(level,"Background AOF buffer size: %lu MB", aofRewriteBufferSize()/(1024*1024)); } } } } /* Write the buffer (possibly composed of multiple blocks) into the specified * fd. If no short write or any other error happens -1 is returned, * otherwise the number of bytes written is returned. */ ssize_t aofRewriteBufferWrite(int fd) { listNode *ln; listIter li; ssize_t count = 0; listRewind(server.aof_rewrite_buf_blocks,&li); while((ln = listNext(&li))) { aofrwblock *block = listNodeValue(ln); ssize_t nwritten; if (block->used) { nwritten = write(fd,block->buf,block->used); if (nwritten != block->used) { if (nwritten == 0) errno = EIO; return -1; } count += nwritten; } } return count; } /* ---------------------------------------------------------------------------- * AOF file implementation * ------------------------------------------------------------------------- */ /* Starts a background task that performs fsync() against the specified * file descriptor (the one of the AOF file) in another thread. */ void aof_background_fsync(int fd) { bioCreateBackgroundJob(REDIS_BIO_AOF_FSYNC,(void*)(long)fd,NULL,NULL); } /* Called when the user switches from "appendonly yes" to "appendonly no" * at runtime using the CONFIG command. */ void stopAppendOnly(void) { redisAssert(server.aof_state != REDIS_AOF_OFF); flushAppendOnlyFile(1); aof_fsync(server.aof_fd); close(server.aof_fd); server.aof_fd = -1; server.aof_selected_db = -1; server.aof_state = REDIS_AOF_OFF; /* rewrite operation in progress? kill it, wait child exit */ if (server.aof_child_pid != -1) { int statloc; redisLog(REDIS_NOTICE,"Killing running AOF rewrite child: %ld", (long) server.aof_child_pid); if (kill(server.aof_child_pid,SIGUSR1) != -1) wait3(&statloc,0,NULL); /* reset the buffer accumulating changes while the child saves */ aofRewriteBufferReset(); aofRemoveTempFile(server.aof_child_pid); server.aof_child_pid = -1; server.aof_rewrite_time_start = -1; } } /* Called when the user switches from "appendonly no" to "appendonly yes" * at runtime using the CONFIG command. */ int startAppendOnly(void) { server.aof_last_fsync = server.unixtime; server.aof_fd = open(server.aof_filename,O_WRONLY|O_APPEND|O_CREAT,0644); redisAssert(server.aof_state == REDIS_AOF_OFF); if (server.aof_fd == -1) { redisLog(REDIS_WARNING,"Redis needs to enable the AOF but can't open the append only file: %s",strerror(errno)); return REDIS_ERR; } if (rewriteAppendOnlyFileBackground() == REDIS_ERR) { close(server.aof_fd); redisLog(REDIS_WARNING,"Redis needs to enable the AOF but can't trigger a background AOF rewrite operation. Check the above logs for more info about the error."); return REDIS_ERR; } /* We correctly switched on AOF, now wait for the rerwite to be complete * in order to append data on disk. */ server.aof_state = REDIS_AOF_WAIT_REWRITE; return REDIS_OK; } /* Write the append only file buffer on disk. * * Since we are required to write the AOF before replying to the client, * and the only way the client socket can get a write is entering when the * the event loop, we accumulate all the AOF writes in a memory * buffer and write it on disk using this function just before entering * the event loop again. * * About the 'force' argument: * * When the fsync policy is set to 'everysec' we may delay the flush if there * is still an fsync() going on in the background thread, since for instance * on Linux write(2) will be blocked by the background fsync anyway. * When this happens we remember that there is some aof buffer to be * flushed ASAP, and will try to do that in the serverCron() function. * * However if force is set to 1 we'll write regardless of the background * fsync. */ void flushAppendOnlyFile(int force) { ssize_t nwritten; int sync_in_progress = 0; if (sdslen(server.aof_buf) == 0) return; if (server.aof_fsync == AOF_FSYNC_EVERYSEC) sync_in_progress = bioPendingJobsOfType(REDIS_BIO_AOF_FSYNC) != 0; if (server.aof_fsync == AOF_FSYNC_EVERYSEC && !force) { /* With this append fsync policy we do background fsyncing. * If the fsync is still in progress we can try to delay * the write for a couple of seconds. */ if (sync_in_progress) { if (server.aof_flush_postponed_start == 0) { /* No previous write postponinig, remember that we are * postponing the flush and return. */ server.aof_flush_postponed_start = server.unixtime; return; } else if (server.unixtime - server.aof_flush_postponed_start < 2) { /* We were already waiting for fsync to finish, but for less * than two seconds this is still ok. Postpone again. */ return; } /* Otherwise fall trough, and go write since we can't wait * over two seconds. */ server.aof_delayed_fsync++; redisLog(REDIS_NOTICE,"Asynchronous AOF fsync is taking too long (disk is busy?). Writing the AOF buffer without waiting for fsync to complete, this may slow down Redis."); } } /* If you are following this code path, then we are going to write so * set reset the postponed flush sentinel to zero. */ server.aof_flush_postponed_start = 0; /* We want to perform a single write. This should be guaranteed atomic * at least if the filesystem we are writing is a real physical one. * While this will save us against the server being killed I don't think * there is much to do about the whole server stopping for power problems * or alike */ nwritten = write(server.aof_fd,server.aof_buf,sdslen(server.aof_buf)); if (nwritten != (signed)sdslen(server.aof_buf)) { /* Ooops, we are in troubles. The best thing to do for now is * aborting instead of giving the illusion that everything is * working as expected. */ if (nwritten == -1) { redisLog(REDIS_WARNING,"Exiting on error writing to the append-only file: %s",strerror(errno)); } else { redisLog(REDIS_WARNING,"Exiting on short write while writing to " "the append-only file: %s (nwritten=%ld, " "expected=%ld)", strerror(errno), (long)nwritten, (long)sdslen(server.aof_buf)); if (ftruncate(server.aof_fd, server.aof_current_size) == -1) { redisLog(REDIS_WARNING, "Could not remove short write " "from the append-only file. Redis may refuse " "to load the AOF the next time it starts. " "ftruncate: %s", strerror(errno)); } } exit(1); } server.aof_current_size += nwritten; /* Re-use AOF buffer when it is small enough. The maximum comes from the * arena size of 4k minus some overhead (but is otherwise arbitrary). */ if ((sdslen(server.aof_buf)+sdsavail(server.aof_buf)) < 4000) { sdsclear(server.aof_buf); } else { sdsfree(server.aof_buf); server.aof_buf = sdsempty(); } /* Don't fsync if no-appendfsync-on-rewrite is set to yes and there are * children doing I/O in the background. */ if (server.aof_no_fsync_on_rewrite && (server.aof_child_pid != -1 || server.rdb_child_pid != -1)) return; /* Perform the fsync if needed. */ if (server.aof_fsync == AOF_FSYNC_ALWAYS) { /* aof_fsync is defined as fdatasync() for Linux in order to avoid * flushing metadata. */ aof_fsync(server.aof_fd); /* Let's try to get this data on the disk */ server.aof_last_fsync = server.unixtime; } else if ((server.aof_fsync == AOF_FSYNC_EVERYSEC && server.unixtime > server.aof_last_fsync)) { if (!sync_in_progress) aof_background_fsync(server.aof_fd); server.aof_last_fsync = server.unixtime; } } sds catAppendOnlyGenericCommand(sds dst, int argc, robj **argv) { char buf[32]; int len, j; robj *o; buf[0] = '*'; len = 1+ll2string(buf+1,sizeof(buf)-1,argc); buf[len++] = '\r'; buf[len++] = '\n'; dst = sdscatlen(dst,buf,len); for (j = 0; j < argc; j++) { o = getDecodedObject(argv[j]); buf[0] = '$'; len = 1+ll2string(buf+1,sizeof(buf)-1,sdslen(o->ptr)); buf[len++] = '\r'; buf[len++] = '\n'; dst = sdscatlen(dst,buf,len); dst = sdscatlen(dst,o->ptr,sdslen(o->ptr)); dst = sdscatlen(dst,"\r\n",2); decrRefCount(o); } return dst; } /* Create the sds representation of an PEXPIREAT command, using * 'seconds' as time to live and 'cmd' to understand what command * we are translating into a PEXPIREAT. * * This command is used in order to translate EXPIRE and PEXPIRE commands * into PEXPIREAT command so that we retain precision in the append only * file, and the time is always absolute and not relative. */ sds catAppendOnlyExpireAtCommand(sds buf, struct redisCommand *cmd, robj *key, robj *seconds) { long long when; robj *argv[3]; /* Make sure we can use strtol */ seconds = getDecodedObject(seconds); when = strtoll(seconds->ptr,NULL,10); /* Convert argument into milliseconds for EXPIRE, SETEX, EXPIREAT */ if (cmd->proc == expireCommand || cmd->proc == setexCommand || cmd->proc == expireatCommand) { when *= 1000; } /* Convert into absolute time for EXPIRE, PEXPIRE, SETEX, PSETEX */ if (cmd->proc == expireCommand || cmd->proc == pexpireCommand || cmd->proc == setexCommand || cmd->proc == psetexCommand) { when += mstime(); } decrRefCount(seconds); argv[0] = createStringObject("PEXPIREAT",9); argv[1] = key; argv[2] = createStringObjectFromLongLong(when); buf = catAppendOnlyGenericCommand(buf, 3, argv); decrRefCount(argv[0]); decrRefCount(argv[2]); return buf; } void feedAppendOnlyFile(struct redisCommand *cmd, int dictid, robj **argv, int argc) { sds buf = sdsempty(); robj *tmpargv[3]; /* The DB this command was targeting is not the same as the last command * we appendend. To issue a SELECT command is needed. */ if (dictid != server.aof_selected_db) { char seldb[64]; snprintf(seldb,sizeof(seldb),"%d",dictid); buf = sdscatprintf(buf,"*2\r\n$6\r\nSELECT\r\n$%lu\r\n%s\r\n", (unsigned long)strlen(seldb),seldb); server.aof_selected_db = dictid; } if (cmd->proc == expireCommand || cmd->proc == pexpireCommand || cmd->proc == expireatCommand) { /* Translate EXPIRE/PEXPIRE/EXPIREAT into PEXPIREAT */ buf = catAppendOnlyExpireAtCommand(buf,cmd,argv[1],argv[2]); } else if (cmd->proc == setexCommand || cmd->proc == psetexCommand) { /* Translate SETEX/PSETEX to SET and PEXPIREAT */ tmpargv[0] = createStringObject("SET",3); tmpargv[1] = argv[1]; tmpargv[2] = argv[3]; buf = catAppendOnlyGenericCommand(buf,3,tmpargv); decrRefCount(tmpargv[0]); buf = catAppendOnlyExpireAtCommand(buf,cmd,argv[1],argv[2]); } else { /* All the other commands don't need translation or need the * same translation already operated in the command vector * for the replication itself. */ buf = catAppendOnlyGenericCommand(buf,argc,argv); } /* Append to the AOF buffer. This will be flushed on disk just before * of re-entering the event loop, so before the client will get a * positive reply about the operation performed. */ if (server.aof_state == REDIS_AOF_ON) server.aof_buf = sdscatlen(server.aof_buf,buf,sdslen(buf)); /* If a background append only file rewriting is in progress we want to * accumulate the differences between the child DB and the current one * in a buffer, so that when the child process will do its work we * can append the differences to the new append only file. */ if (server.aof_child_pid != -1) aofRewriteBufferAppend((unsigned char*)buf,sdslen(buf)); sdsfree(buf); } /* ---------------------------------------------------------------------------- * AOF loading * ------------------------------------------------------------------------- */ /* In Redis commands are always executed in the context of a client, so in * order to load the append only file we need to create a fake client. */ struct redisClient *createFakeClient(void) { struct redisClient *c = zmalloc(sizeof(*c)); selectDb(c,0); c->fd = -1; c->name = NULL; c->querybuf = sdsempty(); c->querybuf_peak = 0; c->argc = 0; c->argv = NULL; c->bufpos = 0; c->flags = 0; /* We set the fake client as a slave waiting for the synchronization * so that Redis will not try to send replies to this client. */ c->replstate = REDIS_REPL_WAIT_BGSAVE_START; c->reply = listCreate(); c->reply_bytes = 0; c->obuf_soft_limit_reached_time = 0; c->watched_keys = listCreate(); listSetFreeMethod(c->reply,decrRefCount); listSetDupMethod(c->reply,dupClientReplyValue); initClientMultiState(c); return c; } void freeFakeClient(struct redisClient *c) { sdsfree(c->querybuf); listRelease(c->reply); listRelease(c->watched_keys); freeClientMultiState(c); zfree(c); } /* Replay the append log file. On error REDIS_OK is returned. On non fatal * error (the append only file is zero-length) REDIS_ERR is returned. On * fatal error an error message is logged and the program exists. */ int loadAppendOnlyFile(char *filename) { struct redisClient *fakeClient; FILE *fp = fopen(filename,"r"); struct redis_stat sb; int old_aof_state = server.aof_state; long loops = 0; if (fp && redis_fstat(fileno(fp),&sb) != -1 && sb.st_size == 0) { server.aof_current_size = 0; fclose(fp); return REDIS_ERR; } if (fp == NULL) { redisLog(REDIS_WARNING,"Fatal error: can't open the append log file for reading: %s",strerror(errno)); exit(1); } /* Temporarily disable AOF, to prevent EXEC from feeding a MULTI * to the same file we're about to read. */ server.aof_state = REDIS_AOF_OFF; fakeClient = createFakeClient(); startLoading(fp); while(1) { int argc, j; unsigned long len; robj **argv; char buf[128]; sds argsds; struct redisCommand *cmd; /* Serve the clients from time to time */ if (!(loops++ % 1000)) { loadingProgress(ftello(fp)); aeProcessEvents(server.el, AE_FILE_EVENTS|AE_DONT_WAIT); } if (fgets(buf,sizeof(buf),fp) == NULL) { if (feof(fp)) break; else goto readerr; } if (buf[0] != '*') goto fmterr; argc = atoi(buf+1); if (argc < 1) goto fmterr; argv = zmalloc(sizeof(robj*)*argc); for (j = 0; j < argc; j++) { if (fgets(buf,sizeof(buf),fp) == NULL) goto readerr; if (buf[0] != '$') goto fmterr; len = strtol(buf+1,NULL,10); argsds = sdsnewlen(NULL,len); if (len && fread(argsds,len,1,fp) == 0) goto fmterr; argv[j] = createObject(REDIS_STRING,argsds); if (fread(buf,2,1,fp) == 0) goto fmterr; /* discard CRLF */ } /* Command lookup */ cmd = lookupCommand(argv[0]->ptr); if (!cmd) { redisLog(REDIS_WARNING,"Unknown command '%s' reading the append only file", argv[0]->ptr); exit(1); } /* Run the command in the context of a fake client */ fakeClient->argc = argc; fakeClient->argv = argv; cmd->proc(fakeClient); /* The fake client should not have a reply */ redisAssert(fakeClient->bufpos == 0 && listLength(fakeClient->reply) == 0); /* The fake client should never get blocked */ redisAssert((fakeClient->flags & REDIS_BLOCKED) == 0); /* Clean up. Command code may have changed argv/argc so we use the * argv/argc of the client instead of the local variables. */ for (j = 0; j < fakeClient->argc; j++) decrRefCount(fakeClient->argv[j]); zfree(fakeClient->argv); } /* This point can only be reached when EOF is reached without errors. * If the client is in the middle of a MULTI/EXEC, log error and quit. */ if (fakeClient->flags & REDIS_MULTI) goto readerr; fclose(fp); freeFakeClient(fakeClient); server.aof_state = old_aof_state; stopLoading(); aofUpdateCurrentSize(); server.aof_rewrite_base_size = server.aof_current_size; return REDIS_OK; readerr: if (feof(fp)) { redisLog(REDIS_WARNING,"Unexpected end of file reading the append only file"); } else { redisLog(REDIS_WARNING,"Unrecoverable error reading the append only file: %s", strerror(errno)); } exit(1); fmterr: redisLog(REDIS_WARNING,"Bad file format reading the append only file: make a backup of your AOF file, then use ./redis-check-aof --fix "); exit(1); } /* ---------------------------------------------------------------------------- * AOF rewrite * ------------------------------------------------------------------------- */ /* Delegate writing an object to writing a bulk string or bulk long long. * This is not placed in rio.c since that adds the redis.h dependency. */ int rioWriteBulkObject(rio *r, robj *obj) { /* Avoid using getDecodedObject to help copy-on-write (we are often * in a child process when this function is called). */ if (obj->encoding == REDIS_ENCODING_INT) { return rioWriteBulkLongLong(r,(long)obj->ptr); } else if (obj->encoding == REDIS_ENCODING_RAW) { return rioWriteBulkString(r,obj->ptr,sdslen(obj->ptr)); } else { redisPanic("Unknown string encoding"); } } /* Emit the commands needed to rebuild a list object. * The function returns 0 on error, 1 on success. */ int rewriteListObject(rio *r, robj *key, robj *o) { long long count = 0, items = listTypeLength(o); if (o->encoding == REDIS_ENCODING_ZIPLIST) { unsigned char *zl = o->ptr; unsigned char *p = ziplistIndex(zl,0); unsigned char *vstr; unsigned int vlen; long long vlong; while(ziplistGet(p,&vstr,&vlen,&vlong)) { if (count == 0) { int cmd_items = (items > REDIS_AOF_REWRITE_ITEMS_PER_CMD) ? REDIS_AOF_REWRITE_ITEMS_PER_CMD : items; if (rioWriteBulkCount(r,'*',2+cmd_items) == 0) return 0; if (rioWriteBulkString(r,"RPUSH",5) == 0) return 0; if (rioWriteBulkObject(r,key) == 0) return 0; } if (vstr) { if (rioWriteBulkString(r,(char*)vstr,vlen) == 0) return 0; } else { if (rioWriteBulkLongLong(r,vlong) == 0) return 0; } p = ziplistNext(zl,p); if (++count == REDIS_AOF_REWRITE_ITEMS_PER_CMD) count = 0; items--; } } else if (o->encoding == REDIS_ENCODING_LINKEDLIST) { list *list = o->ptr; listNode *ln; listIter li; listRewind(list,&li); while((ln = listNext(&li))) { robj *eleobj = listNodeValue(ln); if (count == 0) { int cmd_items = (items > REDIS_AOF_REWRITE_ITEMS_PER_CMD) ? REDIS_AOF_REWRITE_ITEMS_PER_CMD : items; if (rioWriteBulkCount(r,'*',2+cmd_items) == 0) return 0; if (rioWriteBulkString(r,"RPUSH",5) == 0) return 0; if (rioWriteBulkObject(r,key) == 0) return 0; } if (rioWriteBulkObject(r,eleobj) == 0) return 0; if (++count == REDIS_AOF_REWRITE_ITEMS_PER_CMD) count = 0; items--; } } else { redisPanic("Unknown list encoding"); } return 1; } /* Emit the commands needed to rebuild a set object. * The function returns 0 on error, 1 on success. */ int rewriteSetObject(rio *r, robj *key, robj *o) { long long count = 0, items = setTypeSize(o); if (o->encoding == REDIS_ENCODING_INTSET) { int ii = 0; int64_t llval; while(intsetGet(o->ptr,ii++,&llval)) { if (count == 0) { int cmd_items = (items > REDIS_AOF_REWRITE_ITEMS_PER_CMD) ? REDIS_AOF_REWRITE_ITEMS_PER_CMD : items; if (rioWriteBulkCount(r,'*',2+cmd_items) == 0) return 0; if (rioWriteBulkString(r,"SADD",4) == 0) return 0; if (rioWriteBulkObject(r,key) == 0) return 0; } if (rioWriteBulkLongLong(r,llval) == 0) return 0; if (++count == REDIS_AOF_REWRITE_ITEMS_PER_CMD) count = 0; items--; } } else if (o->encoding == REDIS_ENCODING_HT) { dictIterator *di = dictGetIterator(o->ptr); dictEntry *de; while((de = dictNext(di)) != NULL) { robj *eleobj = dictGetKey(de); if (count == 0) { int cmd_items = (items > REDIS_AOF_REWRITE_ITEMS_PER_CMD) ? REDIS_AOF_REWRITE_ITEMS_PER_CMD : items; if (rioWriteBulkCount(r,'*',2+cmd_items) == 0) return 0; if (rioWriteBulkString(r,"SADD",4) == 0) return 0; if (rioWriteBulkObject(r,key) == 0) return 0; } if (rioWriteBulkObject(r,eleobj) == 0) return 0; if (++count == REDIS_AOF_REWRITE_ITEMS_PER_CMD) count = 0; items--; } dictReleaseIterator(di); } else { redisPanic("Unknown set encoding"); } return 1; } /* Emit the commands needed to rebuild a sorted set object. * The function returns 0 on error, 1 on success. */ int rewriteSortedSetObject(rio *r, robj *key, robj *o) { long long count = 0, items = zsetLength(o); if (o->encoding == REDIS_ENCODING_ZIPLIST) { unsigned char *zl = o->ptr; unsigned char *eptr, *sptr; unsigned char *vstr; unsigned int vlen; long long vll; double score; eptr = ziplistIndex(zl,0); redisAssert(eptr != NULL); sptr = ziplistNext(zl,eptr); redisAssert(sptr != NULL); while (eptr != NULL) { redisAssert(ziplistGet(eptr,&vstr,&vlen,&vll)); score = zzlGetScore(sptr); if (count == 0) { int cmd_items = (items > REDIS_AOF_REWRITE_ITEMS_PER_CMD) ? REDIS_AOF_REWRITE_ITEMS_PER_CMD : items; if (rioWriteBulkCount(r,'*',2+cmd_items*2) == 0) return 0; if (rioWriteBulkString(r,"ZADD",4) == 0) return 0; if (rioWriteBulkObject(r,key) == 0) return 0; } if (rioWriteBulkDouble(r,score) == 0) return 0; if (vstr != NULL) { if (rioWriteBulkString(r,(char*)vstr,vlen) == 0) return 0; } else { if (rioWriteBulkLongLong(r,vll) == 0) return 0; } zzlNext(zl,&eptr,&sptr); if (++count == REDIS_AOF_REWRITE_ITEMS_PER_CMD) count = 0; items--; } } else if (o->encoding == REDIS_ENCODING_SKIPLIST) { zset *zs = o->ptr; dictIterator *di = dictGetIterator(zs->dict); dictEntry *de; while((de = dictNext(di)) != NULL) { robj *eleobj = dictGetKey(de); double *score = dictGetVal(de); if (count == 0) { int cmd_items = (items > REDIS_AOF_REWRITE_ITEMS_PER_CMD) ? REDIS_AOF_REWRITE_ITEMS_PER_CMD : items; if (rioWriteBulkCount(r,'*',2+cmd_items*2) == 0) return 0; if (rioWriteBulkString(r,"ZADD",4) == 0) return 0; if (rioWriteBulkObject(r,key) == 0) return 0; } if (rioWriteBulkDouble(r,*score) == 0) return 0; if (rioWriteBulkObject(r,eleobj) == 0) return 0; if (++count == REDIS_AOF_REWRITE_ITEMS_PER_CMD) count = 0; items--; } dictReleaseIterator(di); } else { redisPanic("Unknown sorted zset encoding"); } return 1; } /* Write either the key or the value of the currently selected item of an hash. * The 'hi' argument passes a valid Redis hash iterator. * The 'what' filed specifies if to write a key or a value and can be * either REDIS_HASH_KEY or REDIS_HASH_VALUE. * * The function returns 0 on error, non-zero on success. */ static int rioWriteHashIteratorCursor(rio *r, hashTypeIterator *hi, int what) { if (hi->encoding == REDIS_ENCODING_ZIPLIST) { unsigned char *vstr = NULL; unsigned int vlen = UINT_MAX; long long vll = LLONG_MAX; hashTypeCurrentFromZiplist(hi, what, &vstr, &vlen, &vll); if (vstr) { return rioWriteBulkString(r, (char*)vstr, vlen); } else { return rioWriteBulkLongLong(r, vll); } } else if (hi->encoding == REDIS_ENCODING_HT) { robj *value; hashTypeCurrentFromHashTable(hi, what, &value); return rioWriteBulkObject(r, value); } redisPanic("Unknown hash encoding"); return 0; } /* Emit the commands needed to rebuild a hash object. * The function returns 0 on error, 1 on success. */ int rewriteHashObject(rio *r, robj *key, robj *o) { hashTypeIterator *hi; long long count = 0, items = hashTypeLength(o); hi = hashTypeInitIterator(o); while (hashTypeNext(hi) != REDIS_ERR) { if (count == 0) { int cmd_items = (items > REDIS_AOF_REWRITE_ITEMS_PER_CMD) ? REDIS_AOF_REWRITE_ITEMS_PER_CMD : items; if (rioWriteBulkCount(r,'*',2+cmd_items*2) == 0) return 0; if (rioWriteBulkString(r,"HMSET",5) == 0) return 0; if (rioWriteBulkObject(r,key) == 0) return 0; } if (rioWriteHashIteratorCursor(r, hi, REDIS_HASH_KEY) == 0) return 0; if (rioWriteHashIteratorCursor(r, hi, REDIS_HASH_VALUE) == 0) return 0; if (++count == REDIS_AOF_REWRITE_ITEMS_PER_CMD) count = 0; items--; } hashTypeReleaseIterator(hi); return 1; } /* Write a sequence of commands able to fully rebuild the dataset into * "filename". Used both by REWRITEAOF and BGREWRITEAOF. * * In order to minimize the number of commands needed in the rewritten * log Redis uses variadic commands when possible, such as RPUSH, SADD * and ZADD. However at max REDIS_AOF_REWRITE_ITEMS_PER_CMD items per time * are inserted using a single command. */ int rewriteAppendOnlyFile(char *filename) { dictIterator *di = NULL; dictEntry *de; rio aof; FILE *fp; char tmpfile[256]; int j; long long now = mstime(); /* Note that we have to use a different temp name here compared to the * one used by rewriteAppendOnlyFileBackground() function. */ snprintf(tmpfile,256,"temp-rewriteaof-%d.aof", (int) getpid()); fp = fopen(tmpfile,"w"); if (!fp) { redisLog(REDIS_WARNING, "Opening the temp file for AOF rewrite in rewriteAppendOnlyFile(): %s", strerror(errno)); return REDIS_ERR; } rioInitWithFile(&aof,fp); if (server.aof_rewrite_incremental_fsync) rioSetAutoSync(&aof,REDIS_AOF_AUTOSYNC_BYTES); for (j = 0; j < server.dbnum; j++) { char selectcmd[] = "*2\r\n$6\r\nSELECT\r\n"; redisDb *db = server.db+j; dict *d = db->dict; if (dictSize(d) == 0) continue; di = dictGetSafeIterator(d); if (!di) { fclose(fp); return REDIS_ERR; } /* SELECT the new DB */ if (rioWrite(&aof,selectcmd,sizeof(selectcmd)-1) == 0) goto werr; if (rioWriteBulkLongLong(&aof,j) == 0) goto werr; /* Iterate this DB writing every entry */ while((de = dictNext(di)) != NULL) { sds keystr; robj key, *o; long long expiretime; keystr = dictGetKey(de); o = dictGetVal(de); initStaticStringObject(key,keystr); expiretime = getExpire(db,&key); /* If this key is already expired skip it */ if (expiretime != -1 && expiretime < now) continue; /* Save the key and associated value */ if (o->type == REDIS_STRING) { /* Emit a SET command */ char cmd[]="*3\r\n$3\r\nSET\r\n"; if (rioWrite(&aof,cmd,sizeof(cmd)-1) == 0) goto werr; /* Key and value */ if (rioWriteBulkObject(&aof,&key) == 0) goto werr; if (rioWriteBulkObject(&aof,o) == 0) goto werr; } else if (o->type == REDIS_LIST) { if (rewriteListObject(&aof,&key,o) == 0) goto werr; } else if (o->type == REDIS_SET) { if (rewriteSetObject(&aof,&key,o) == 0) goto werr; } else if (o->type == REDIS_ZSET) { if (rewriteSortedSetObject(&aof,&key,o) == 0) goto werr; } else if (o->type == REDIS_HASH) { if (rewriteHashObject(&aof,&key,o) == 0) goto werr; } else { redisPanic("Unknown object type"); } /* Save the expire time */ if (expiretime != -1) { char cmd[]="*3\r\n$9\r\nPEXPIREAT\r\n"; if (rioWrite(&aof,cmd,sizeof(cmd)-1) == 0) goto werr; if (rioWriteBulkObject(&aof,&key) == 0) goto werr; if (rioWriteBulkLongLong(&aof,expiretime) == 0) goto werr; } } dictReleaseIterator(di); } /* Make sure data will not remain on the OS's output buffers */ fflush(fp); aof_fsync(fileno(fp)); fclose(fp); /* Use RENAME to make sure the DB file is changed atomically only * if the generate DB file is ok. */ if (rename(tmpfile,filename) == -1) { redisLog(REDIS_WARNING,"Error moving temp append only file on the final destination: %s", strerror(errno)); unlink(tmpfile); return REDIS_ERR; } redisLog(REDIS_NOTICE,"SYNC append only file rewrite performed"); return REDIS_OK; werr: fclose(fp); unlink(tmpfile); redisLog(REDIS_WARNING,"Write error writing append only file on disk: %s", strerror(errno)); if (di) dictReleaseIterator(di); return REDIS_ERR; } /* This is how rewriting of the append only file in background works: * * 1) The user calls BGREWRITEAOF * 2) Redis calls this function, that forks(): * 2a) the child rewrite the append only file in a temp file. * 2b) the parent accumulates differences in server.aof_rewrite_buf. * 3) When the child finished '2a' exists. * 4) The parent will trap the exit code, if it's OK, will append the * data accumulated into server.aof_rewrite_buf into the temp file, and * finally will rename(2) the temp file in the actual file name. * The the new file is reopened as the new append only file. Profit! */ int rewriteAppendOnlyFileBackground(void) { pid_t childpid; long long start; if (server.aof_child_pid != -1) return REDIS_ERR; start = ustime(); if ((childpid = fork()) == 0) { char tmpfile[256]; /* Child */ if (server.ipfd > 0) close(server.ipfd); if (server.sofd > 0) close(server.sofd); snprintf(tmpfile,256,"temp-rewriteaof-bg-%d.aof", (int) getpid()); if (rewriteAppendOnlyFile(tmpfile) == REDIS_OK) { size_t private_dirty = zmalloc_get_private_dirty(); if (private_dirty) { redisLog(REDIS_NOTICE, "AOF rewrite: %zu MB of memory used by copy-on-write", private_dirty/(1024*1024)); } exitFromChild(0); } else { exitFromChild(1); } } else { /* Parent */ server.stat_fork_time = ustime()-start; if (childpid == -1) { redisLog(REDIS_WARNING, "Can't rewrite append only file in background: fork: %s", strerror(errno)); return REDIS_ERR; } redisLog(REDIS_NOTICE, "Background append only file rewriting started by pid %d",childpid); server.aof_rewrite_scheduled = 0; server.aof_rewrite_time_start = time(NULL); server.aof_child_pid = childpid; updateDictResizePolicy(); /* We set appendseldb to -1 in order to force the next call to the * feedAppendOnlyFile() to issue a SELECT command, so the differences * accumulated by the parent into server.aof_rewrite_buf will start * with a SELECT statement and it will be safe to merge. */ server.aof_selected_db = -1; return REDIS_OK; } return REDIS_OK; /* unreached */ } void bgrewriteaofCommand(redisClient *c) { if (server.aof_child_pid != -1) { addReplyError(c,"Background append only file rewriting already in progress"); } else if (server.rdb_child_pid != -1) { server.aof_rewrite_scheduled = 1; addReplyStatus(c,"Background append only file rewriting scheduled"); } else if (rewriteAppendOnlyFileBackground() == REDIS_OK) { addReplyStatus(c,"Background append only file rewriting started"); } else { addReply(c,shared.err); } } void aofRemoveTempFile(pid_t childpid) { char tmpfile[256]; snprintf(tmpfile,256,"temp-rewriteaof-bg-%d.aof", (int) childpid); unlink(tmpfile); } /* Update the server.aof_current_size filed explicitly using stat(2) * to check the size of the file. This is useful after a rewrite or after * a restart, normally the size is updated just adding the write length * to the current length, that is much faster. */ void aofUpdateCurrentSize(void) { struct redis_stat sb; if (redis_fstat(server.aof_fd,&sb) == -1) { redisLog(REDIS_WARNING,"Unable to obtain the AOF file length. stat: %s", strerror(errno)); } else { server.aof_current_size = sb.st_size; } } /* A background append only file rewriting (BGREWRITEAOF) terminated its work. * Handle this. */ void backgroundRewriteDoneHandler(int exitcode, int bysignal) { if (!bysignal && exitcode == 0) { int newfd, oldfd; char tmpfile[256]; long long now = ustime(); redisLog(REDIS_NOTICE, "Background AOF rewrite terminated with success"); /* Flush the differences accumulated by the parent to the * rewritten AOF. */ snprintf(tmpfile,256,"temp-rewriteaof-bg-%d.aof", (int)server.aof_child_pid); newfd = open(tmpfile,O_WRONLY|O_APPEND); if (newfd == -1) { redisLog(REDIS_WARNING, "Unable to open the temporary AOF produced by the child: %s", strerror(errno)); goto cleanup; } if (aofRewriteBufferWrite(newfd) == -1) { redisLog(REDIS_WARNING, "Error trying to flush the parent diff to the rewritten AOF: %s", strerror(errno)); close(newfd); goto cleanup; } redisLog(REDIS_NOTICE, "Parent diff successfully flushed to the rewritten AOF (%lu bytes)", aofRewriteBufferSize()); /* The only remaining thing to do is to rename the temporary file to * the configured file and switch the file descriptor used to do AOF * writes. We don't want close(2) or rename(2) calls to block the * server on old file deletion. * * There are two possible scenarios: * * 1) AOF is DISABLED and this was a one time rewrite. The temporary * file will be renamed to the configured file. When this file already * exists, it will be unlinked, which may block the server. * * 2) AOF is ENABLED and the rewritten AOF will immediately start * receiving writes. After the temporary file is renamed to the * configured file, the original AOF file descriptor will be closed. * Since this will be the last reference to that file, closing it * causes the underlying file to be unlinked, which may block the * server. * * To mitigate the blocking effect of the unlink operation (either * caused by rename(2) in scenario 1, or by close(2) in scenario 2), we * use a background thread to take care of this. First, we * make scenario 1 identical to scenario 2 by opening the target file * when it exists. The unlink operation after the rename(2) will then * be executed upon calling close(2) for its descriptor. Everything to * guarantee atomicity for this switch has already happened by then, so * we don't care what the outcome or duration of that close operation * is, as long as the file descriptor is released again. */ if (server.aof_fd == -1) { /* AOF disabled */ /* Don't care if this fails: oldfd will be -1 and we handle that. * One notable case of -1 return is if the old file does * not exist. */ oldfd = open(server.aof_filename,O_RDONLY|O_NONBLOCK); } else { /* AOF enabled */ oldfd = -1; /* We'll set this to the current AOF filedes later. */ } /* Rename the temporary file. This will not unlink the target file if * it exists, because we reference it with "oldfd". */ if (rename(tmpfile,server.aof_filename) == -1) { redisLog(REDIS_WARNING, "Error trying to rename the temporary AOF file: %s", strerror(errno)); close(newfd); if (oldfd != -1) close(oldfd); goto cleanup; } if (server.aof_fd == -1) { /* AOF disabled, we don't need to set the AOF file descriptor * to this new file, so we can close it. */ close(newfd); } else { /* AOF enabled, replace the old fd with the new one. */ oldfd = server.aof_fd; server.aof_fd = newfd; if (server.aof_fsync == AOF_FSYNC_ALWAYS) aof_fsync(newfd); else if (server.aof_fsync == AOF_FSYNC_EVERYSEC) aof_background_fsync(newfd); server.aof_selected_db = -1; /* Make sure SELECT is re-issued */ aofUpdateCurrentSize(); server.aof_rewrite_base_size = server.aof_current_size; /* Clear regular AOF buffer since its contents was just written to * the new AOF from the background rewrite buffer. */ sdsfree(server.aof_buf); server.aof_buf = sdsempty(); } server.aof_lastbgrewrite_status = REDIS_OK; redisLog(REDIS_NOTICE, "Background AOF rewrite finished successfully"); /* Change state from WAIT_REWRITE to ON if needed */ if (server.aof_state == REDIS_AOF_WAIT_REWRITE) server.aof_state = REDIS_AOF_ON; /* Asynchronously close the overwritten AOF. */ if (oldfd != -1) bioCreateBackgroundJob(REDIS_BIO_CLOSE_FILE,(void*)(long)oldfd,NULL,NULL); redisLog(REDIS_VERBOSE, "Background AOF rewrite signal handler took %lldus", ustime()-now); } else if (!bysignal && exitcode != 0) { server.aof_lastbgrewrite_status = REDIS_ERR; redisLog(REDIS_WARNING, "Background AOF rewrite terminated with error"); } else { server.aof_lastbgrewrite_status = REDIS_ERR; redisLog(REDIS_WARNING, "Background AOF rewrite terminated by signal %d", bysignal); } cleanup: aofRewriteBufferReset(); aofRemoveTempFile(server.aof_child_pid); server.aof_child_pid = -1; server.aof_rewrite_time_last = time(NULL)-server.aof_rewrite_time_start; server.aof_rewrite_time_start = -1; /* Schedule a new rewrite if we are waiting for it to switch the AOF ON. */ if (server.aof_state == REDIS_AOF_WAIT_REWRITE) server.aof_rewrite_scheduled = 1; } redis-2.6.16/src/asciilogo.h000066400000000000000000000054211220734223100156230ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ char *ascii_logo = " _._ \n" " _.-``__ ''-._ \n" " _.-`` `. `_. ''-._ Redis %s (%s/%d) %s bit\n" " .-`` .-```. ```\\/ _.,_ ''-._ \n" " ( ' , .-` | `, ) Running in %s mode\n" " |`-._`-...-` __...-.``-._|'` _.-'| Port: %d\n" " | `-._ `._ / _.-' | PID: %ld\n" " `-._ `-._ `-./ _.-' _.-' \n" " |`-._`-._ `-.__.-' _.-'_.-'| \n" " | `-._`-._ _.-'_.-' | http://redis.io \n" " `-._ `-._`-.__.-'_.-' _.-' \n" " |`-._`-._ `-.__.-' _.-'_.-'| \n" " | `-._`-._ _.-'_.-' | \n" " `-._ `-._`-.__.-'_.-' _.-' \n" " `-._ `-.__.-' _.-' \n" " `-._ _.-' \n" " `-.__.-' \n\n"; redis-2.6.16/src/bio.c000066400000000000000000000226461220734223100144260ustar00rootroot00000000000000/* Background I/O service for Redis. * * This file implements operations that we need to perform in the background. * Currently there is only a single operation, that is a background close(2) * system call. This is needed as when the process is the last owner of a * reference to a file closing it means unlinking it, and the deletion of the * file is slow, blocking the server. * * In the future we'll either continue implementing new things we need or * we'll switch to libeio. However there are probably long term uses for this * file as we may want to put here Redis specific background tasks (for instance * it is not impossible that we'll need a non blocking FLUSHDB/FLUSHALL * implementation). * * DESIGN * ------ * * The design is trivial, we have a structure representing a job to perform * and a different thread and job queue for every job type. * Every thread wait for new jobs in its queue, and process every job * sequentially. * * Jobs of the same type are guaranteed to be processed from the least * recently inserted to the most recently inserted (older jobs processed * first). * * Currently there is no way for the creator of the job to be notified about * the completion of the operation, this will only be added when/if needed. * * ---------------------------------------------------------------------------- * * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" #include "bio.h" static pthread_mutex_t bio_mutex[REDIS_BIO_NUM_OPS]; static pthread_cond_t bio_condvar[REDIS_BIO_NUM_OPS]; static list *bio_jobs[REDIS_BIO_NUM_OPS]; /* The following array is used to hold the number of pending jobs for every * OP type. This allows us to export the bioPendingJobsOfType() API that is * useful when the main thread wants to perform some operation that may involve * objects shared with the background thread. The main thread will just wait * that there are no longer jobs of this type to be executed before performing * the sensible operation. This data is also useful for reporting. */ static unsigned long long bio_pending[REDIS_BIO_NUM_OPS]; /* This structure represents a background Job. It is only used locally to this * file as the API does not expose the internals at all. */ struct bio_job { time_t time; /* Time at which the job was created. */ /* Job specific arguments pointers. If we need to pass more than three * arguments we can just pass a pointer to a structure or alike. */ void *arg1, *arg2, *arg3; }; void *bioProcessBackgroundJobs(void *arg); /* Make sure we have enough stack to perform all the things we do in the * main thread. */ #define REDIS_THREAD_STACK_SIZE (1024*1024*4) /* Initialize the background system, spawning the thread. */ void bioInit(void) { pthread_attr_t attr; pthread_t thread; size_t stacksize; int j; /* Initialization of state vars and objects */ for (j = 0; j < REDIS_BIO_NUM_OPS; j++) { pthread_mutex_init(&bio_mutex[j],NULL); pthread_cond_init(&bio_condvar[j],NULL); bio_jobs[j] = listCreate(); bio_pending[j] = 0; } /* Set the stack size as by default it may be small in some system */ pthread_attr_init(&attr); pthread_attr_getstacksize(&attr,&stacksize); if (!stacksize) stacksize = 1; /* The world is full of Solaris Fixes */ while (stacksize < REDIS_THREAD_STACK_SIZE) stacksize *= 2; pthread_attr_setstacksize(&attr, stacksize); /* Ready to spawn our threads. We use the single argument the thread * function accepts in order to pass the job ID the thread is * responsible of. */ for (j = 0; j < REDIS_BIO_NUM_OPS; j++) { void *arg = (void*)(unsigned long) j; if (pthread_create(&thread,&attr,bioProcessBackgroundJobs,arg) != 0) { redisLog(REDIS_WARNING,"Fatal: Can't initialize Background Jobs."); exit(1); } } } void bioCreateBackgroundJob(int type, void *arg1, void *arg2, void *arg3) { struct bio_job *job = zmalloc(sizeof(*job)); job->time = time(NULL); job->arg1 = arg1; job->arg2 = arg2; job->arg3 = arg3; pthread_mutex_lock(&bio_mutex[type]); listAddNodeTail(bio_jobs[type],job); bio_pending[type]++; pthread_cond_signal(&bio_condvar[type]); pthread_mutex_unlock(&bio_mutex[type]); } void *bioProcessBackgroundJobs(void *arg) { struct bio_job *job; unsigned long type = (unsigned long) arg; sigset_t sigset; pthread_detach(pthread_self()); pthread_mutex_lock(&bio_mutex[type]); /* Block SIGALRM so we are sure that only the main thread will * receive the watchdog signal. */ sigemptyset(&sigset); sigaddset(&sigset, SIGALRM); if (pthread_sigmask(SIG_BLOCK, &sigset, NULL)) redisLog(REDIS_WARNING, "Warning: can't mask SIGALRM in bio.c thread: %s", strerror(errno)); while(1) { listNode *ln; /* The loop always starts with the lock hold. */ if (listLength(bio_jobs[type]) == 0) { pthread_cond_wait(&bio_condvar[type],&bio_mutex[type]); continue; } /* Pop the job from the queue. */ ln = listFirst(bio_jobs[type]); job = ln->value; /* It is now possible to unlock the background system as we know have * a stand alone job structure to process.*/ pthread_mutex_unlock(&bio_mutex[type]); /* Process the job accordingly to its type. */ if (type == REDIS_BIO_CLOSE_FILE) { close((long)job->arg1); } else if (type == REDIS_BIO_AOF_FSYNC) { aof_fsync((long)job->arg1); } else { redisPanic("Wrong job type in bioProcessBackgroundJobs()."); } zfree(job); /* Lock again before reiterating the loop, if there are no longer * jobs to process we'll block again in pthread_cond_wait(). */ pthread_mutex_lock(&bio_mutex[type]); listDelNode(bio_jobs[type],ln); bio_pending[type]--; } } /* Return the number of pending jobs of the specified type. */ unsigned long long bioPendingJobsOfType(int type) { unsigned long long val; pthread_mutex_lock(&bio_mutex[type]); val = bio_pending[type]; pthread_mutex_unlock(&bio_mutex[type]); return val; } #if 0 /* We don't use the following code for now, and bioWaitPendingJobsLE probably needs a rewrite using conditional variables instead of the current implementation. */ /* Wait until the number of pending jobs of the specified type are * less or equal to the specified number. * * This function may block for long time, it should only be used to perform * the following tasks: * * 1) To avoid that the main thread is pushing jobs of a given time so fast * that the background thread can't process them at the same speed. * So before creating a new job of a given type the main thread should * call something like: bioWaitPendingJobsLE(job_type,10000); * 2) In order to perform special operations that make it necessary to be sure * no one is touching shared resourced in the background. */ void bioWaitPendingJobsLE(int type, unsigned long long num) { unsigned long long iteration = 0; /* We poll the jobs queue aggressively to start, and gradually relax * the polling speed if it is going to take too much time. */ while(1) { iteration++; if (iteration > 1000 && iteration <= 10000) { usleep(100); } else if (iteration > 10000) { usleep(1000); } if (bioPendingJobsOfType(type) <= num) break; } } /* Return the older job of the specified type. */ time_t bioOlderJobOfType(int type) { time_t time; listNode *ln; struct bio_job *job; pthread_mutex_lock(&bio_mutex[type]); ln = listFirst(bio_jobs[type]); if (ln == NULL) { pthread_mutex_unlock(&bio_mutex[type]); return 0; } job = ln->value; time = job->time; pthread_mutex_unlock(&bio_mutex[type]); return time; } #endif redis-2.6.16/src/bio.h000066400000000000000000000040201220734223100144150ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* Exported API */ void bioInit(void); void bioCreateBackgroundJob(int type, void *arg1, void *arg2, void *arg3); unsigned long long bioPendingJobsOfType(int type); void bioWaitPendingJobsLE(int type, unsigned long long num); time_t bioOlderJobOfType(int type); /* Background job opcodes */ #define REDIS_BIO_CLOSE_FILE 0 /* Deferred close(2) syscall. */ #define REDIS_BIO_AOF_FSYNC 1 /* Deferred AOF fsync. */ #define REDIS_BIO_NUM_OPS 2 redis-2.6.16/src/bitops.c000066400000000000000000000356251220734223100151560ustar00rootroot00000000000000/* Bit operations. * * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" /* ----------------------------------------------------------------------------- * Helpers and low level bit functions. * -------------------------------------------------------------------------- */ /* This helper function used by GETBIT / SETBIT parses the bit offset argument * making sure an error is returned if it is negative or if it overflows * Redis 512 MB limit for the string value. */ static int getBitOffsetFromArgument(redisClient *c, robj *o, size_t *offset) { long long loffset; char *err = "bit offset is not an integer or out of range"; if (getLongLongFromObjectOrReply(c,o,&loffset,err) != REDIS_OK) return REDIS_ERR; /* Limit offset to 512MB in bytes */ if ((loffset < 0) || ((unsigned long long)loffset >> 3) >= (512*1024*1024)) { addReplyError(c,err); return REDIS_ERR; } *offset = (size_t)loffset; return REDIS_OK; } /* Count number of bits set in the binary array pointed by 's' and long * 'count' bytes. The implementation of this function is required to * work with a input string length up to 512 MB. */ size_t popcount(void *s, long count) { size_t bits = 0; unsigned char *p; uint32_t *p4 = s; static const unsigned char bitsinbyte[256] = {0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,4,5,5,6,5,6,6,7,5,6,6,7,6,7,7,8}; /* Count bits 16 bytes at a time */ while(count>=16) { uint32_t aux1, aux2, aux3, aux4; aux1 = *p4++; aux2 = *p4++; aux3 = *p4++; aux4 = *p4++; count -= 16; aux1 = aux1 - ((aux1 >> 1) & 0x55555555); aux1 = (aux1 & 0x33333333) + ((aux1 >> 2) & 0x33333333); aux2 = aux2 - ((aux2 >> 1) & 0x55555555); aux2 = (aux2 & 0x33333333) + ((aux2 >> 2) & 0x33333333); aux3 = aux3 - ((aux3 >> 1) & 0x55555555); aux3 = (aux3 & 0x33333333) + ((aux3 >> 2) & 0x33333333); aux4 = aux4 - ((aux4 >> 1) & 0x55555555); aux4 = (aux4 & 0x33333333) + ((aux4 >> 2) & 0x33333333); bits += ((((aux1 + (aux1 >> 4)) & 0x0F0F0F0F) * 0x01010101) >> 24) + ((((aux2 + (aux2 >> 4)) & 0x0F0F0F0F) * 0x01010101) >> 24) + ((((aux3 + (aux3 >> 4)) & 0x0F0F0F0F) * 0x01010101) >> 24) + ((((aux4 + (aux4 >> 4)) & 0x0F0F0F0F) * 0x01010101) >> 24); } /* Count the remaining bytes */ p = (unsigned char*)p4; while(count--) bits += bitsinbyte[*p++]; return bits; } /* ----------------------------------------------------------------------------- * Bits related string commands: GETBIT, SETBIT, BITCOUNT, BITOP. * -------------------------------------------------------------------------- */ #define BITOP_AND 0 #define BITOP_OR 1 #define BITOP_XOR 2 #define BITOP_NOT 3 /* SETBIT key offset bitvalue */ void setbitCommand(redisClient *c) { robj *o; char *err = "bit is not an integer or out of range"; size_t bitoffset; int byte, bit; int byteval, bitval; long on; if (getBitOffsetFromArgument(c,c->argv[2],&bitoffset) != REDIS_OK) return; if (getLongFromObjectOrReply(c,c->argv[3],&on,err) != REDIS_OK) return; /* Bits can only be set or cleared... */ if (on & ~1) { addReplyError(c,err); return; } o = lookupKeyWrite(c->db,c->argv[1]); if (o == NULL) { o = createObject(REDIS_STRING,sdsempty()); dbAdd(c->db,c->argv[1],o); } else { if (checkType(c,o,REDIS_STRING)) return; /* Create a copy when the object is shared or encoded. */ if (o->refcount != 1 || o->encoding != REDIS_ENCODING_RAW) { robj *decoded = getDecodedObject(o); o = createStringObject(decoded->ptr, sdslen(decoded->ptr)); decrRefCount(decoded); dbOverwrite(c->db,c->argv[1],o); } } /* Grow sds value to the right length if necessary */ byte = bitoffset >> 3; o->ptr = sdsgrowzero(o->ptr,byte+1); /* Get current values */ byteval = ((uint8_t*)o->ptr)[byte]; bit = 7 - (bitoffset & 0x7); bitval = byteval & (1 << bit); /* Update byte with new bit value and return original value */ byteval &= ~(1 << bit); byteval |= ((on & 0x1) << bit); ((uint8_t*)o->ptr)[byte] = byteval; signalModifiedKey(c->db,c->argv[1]); server.dirty++; addReply(c, bitval ? shared.cone : shared.czero); } /* GETBIT key offset */ void getbitCommand(redisClient *c) { robj *o; char llbuf[32]; size_t bitoffset; size_t byte, bit; size_t bitval = 0; if (getBitOffsetFromArgument(c,c->argv[2],&bitoffset) != REDIS_OK) return; if ((o = lookupKeyReadOrReply(c,c->argv[1],shared.czero)) == NULL || checkType(c,o,REDIS_STRING)) return; byte = bitoffset >> 3; bit = 7 - (bitoffset & 0x7); if (o->encoding != REDIS_ENCODING_RAW) { if (byte < (size_t)ll2string(llbuf,sizeof(llbuf),(long)o->ptr)) bitval = llbuf[byte] & (1 << bit); } else { if (byte < sdslen(o->ptr)) bitval = ((uint8_t*)o->ptr)[byte] & (1 << bit); } addReply(c, bitval ? shared.cone : shared.czero); } /* BITOP op_name target_key src_key1 src_key2 src_key3 ... src_keyN */ void bitopCommand(redisClient *c) { char *opname = c->argv[1]->ptr; robj *o, *targetkey = c->argv[2]; long op, j, numkeys; robj **objects; /* Array of source objects. */ unsigned char **src; /* Array of source strings pointers. */ long *len, maxlen = 0; /* Array of length of src strings, and max len. */ long minlen = 0; /* Min len among the input keys. */ unsigned char *res = NULL; /* Resulting string. */ /* Parse the operation name. */ if ((opname[0] == 'a' || opname[0] == 'A') && !strcasecmp(opname,"and")) op = BITOP_AND; else if((opname[0] == 'o' || opname[0] == 'O') && !strcasecmp(opname,"or")) op = BITOP_OR; else if((opname[0] == 'x' || opname[0] == 'X') && !strcasecmp(opname,"xor")) op = BITOP_XOR; else if((opname[0] == 'n' || opname[0] == 'N') && !strcasecmp(opname,"not")) op = BITOP_NOT; else { addReply(c,shared.syntaxerr); return; } /* Sanity check: NOT accepts only a single key argument. */ if (op == BITOP_NOT && c->argc != 4) { addReplyError(c,"BITOP NOT must be called with a single source key."); return; } /* Lookup keys, and store pointers to the string objects into an array. */ numkeys = c->argc - 3; src = zmalloc(sizeof(unsigned char*) * numkeys); len = zmalloc(sizeof(long) * numkeys); objects = zmalloc(sizeof(robj*) * numkeys); for (j = 0; j < numkeys; j++) { o = lookupKeyRead(c->db,c->argv[j+3]); /* Handle non-existing keys as empty strings. */ if (o == NULL) { objects[j] = NULL; src[j] = NULL; len[j] = 0; minlen = 0; continue; } /* Return an error if one of the keys is not a string. */ if (checkType(c,o,REDIS_STRING)) { for (j = j-1; j >= 0; j--) { if (objects[j]) decrRefCount(objects[j]); } zfree(src); zfree(len); zfree(objects); return; } objects[j] = getDecodedObject(o); src[j] = objects[j]->ptr; len[j] = sdslen(objects[j]->ptr); if (len[j] > maxlen) maxlen = len[j]; if (j == 0 || len[j] < minlen) minlen = len[j]; } /* Compute the bit operation, if at least one string is not empty. */ if (maxlen) { res = (unsigned char*) sdsnewlen(NULL,maxlen); unsigned char output, byte; long i; /* Fast path: as far as we have data for all the input bitmaps we * can take a fast path that performs much better than the * vanilla algorithm. */ j = 0; if (minlen && numkeys <= 16) { unsigned long *lp[16]; unsigned long *lres = (unsigned long*) res; /* Note: sds pointer is always aligned to 8 byte boundary. */ memcpy(lp,src,sizeof(unsigned long*)*numkeys); memcpy(res,src[0],minlen); /* Different branches per different operations for speed (sorry). */ if (op == BITOP_AND) { while(minlen >= sizeof(unsigned long)*4) { for (i = 1; i < numkeys; i++) { lres[0] &= lp[i][0]; lres[1] &= lp[i][1]; lres[2] &= lp[i][2]; lres[3] &= lp[i][3]; lp[i]+=4; } lres+=4; j += sizeof(unsigned long)*4; minlen -= sizeof(unsigned long)*4; } } else if (op == BITOP_OR) { while(minlen >= sizeof(unsigned long)*4) { for (i = 1; i < numkeys; i++) { lres[0] |= lp[i][0]; lres[1] |= lp[i][1]; lres[2] |= lp[i][2]; lres[3] |= lp[i][3]; lp[i]+=4; } lres+=4; j += sizeof(unsigned long)*4; minlen -= sizeof(unsigned long)*4; } } else if (op == BITOP_XOR) { while(minlen >= sizeof(unsigned long)*4) { for (i = 1; i < numkeys; i++) { lres[0] ^= lp[i][0]; lres[1] ^= lp[i][1]; lres[2] ^= lp[i][2]; lres[3] ^= lp[i][3]; lp[i]+=4; } lres+=4; j += sizeof(unsigned long)*4; minlen -= sizeof(unsigned long)*4; } } else if (op == BITOP_NOT) { while(minlen >= sizeof(unsigned long)*4) { lres[0] = ~lres[0]; lres[1] = ~lres[1]; lres[2] = ~lres[2]; lres[3] = ~lres[3]; lres+=4; j += sizeof(unsigned long)*4; minlen -= sizeof(unsigned long)*4; } } } /* j is set to the next byte to process by the previous loop. */ for (; j < maxlen; j++) { output = (len[0] <= j) ? 0 : src[0][j]; if (op == BITOP_NOT) output = ~output; for (i = 1; i < numkeys; i++) { byte = (len[i] <= j) ? 0 : src[i][j]; switch(op) { case BITOP_AND: output &= byte; break; case BITOP_OR: output |= byte; break; case BITOP_XOR: output ^= byte; break; } } res[j] = output; } } for (j = 0; j < numkeys; j++) { if (objects[j]) decrRefCount(objects[j]); } zfree(src); zfree(len); zfree(objects); /* Store the computed value into the target key */ if (maxlen) { o = createObject(REDIS_STRING,res); setKey(c->db,targetkey,o); decrRefCount(o); } else if (dbDelete(c->db,targetkey)) { signalModifiedKey(c->db,targetkey); } server.dirty++; addReplyLongLong(c,maxlen); /* Return the output string length in bytes. */ } /* BITCOUNT key [start end] */ void bitcountCommand(redisClient *c) { robj *o; long start, end, strlen; unsigned char *p; char llbuf[32]; /* Lookup, check for type, and return 0 for non existing keys. */ if ((o = lookupKeyReadOrReply(c,c->argv[1],shared.czero)) == NULL || checkType(c,o,REDIS_STRING)) return; /* Set the 'p' pointer to the string, that can be just a stack allocated * array if our string was integer encoded. */ if (o->encoding == REDIS_ENCODING_INT) { p = (unsigned char*) llbuf; strlen = ll2string(llbuf,sizeof(llbuf),(long)o->ptr); } else { p = (unsigned char*) o->ptr; strlen = sdslen(o->ptr); } /* Parse start/end range if any. */ if (c->argc == 4) { if (getLongFromObjectOrReply(c,c->argv[2],&start,NULL) != REDIS_OK) return; if (getLongFromObjectOrReply(c,c->argv[3],&end,NULL) != REDIS_OK) return; /* Convert negative indexes */ if (start < 0) start = strlen+start; if (end < 0) end = strlen+end; if (start < 0) start = 0; if (end < 0) end = 0; if (end >= strlen) end = strlen-1; } else if (c->argc == 2) { /* The whole string. */ start = 0; end = strlen-1; } else { /* Syntax error. */ addReply(c,shared.syntaxerr); return; } /* Precondition: end >= 0 && end < strlen, so the only condition where * zero can be returned is: start > end. */ if (start > end) { addReply(c,shared.czero); } else { long bytes = end-start+1; addReplyLongLong(c,popcount(p+start,bytes)); } } redis-2.6.16/src/config.c000066400000000000000000001244711220734223100151210ustar00rootroot00000000000000/* Configuration file parsing and CONFIG GET/SET commands implementation. * * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" /*----------------------------------------------------------------------------- * Config file parsing *----------------------------------------------------------------------------*/ int yesnotoi(char *s) { if (!strcasecmp(s,"yes")) return 1; else if (!strcasecmp(s,"no")) return 0; else return -1; } void appendServerSaveParams(time_t seconds, int changes) { server.saveparams = zrealloc(server.saveparams,sizeof(struct saveparam)*(server.saveparamslen+1)); server.saveparams[server.saveparamslen].seconds = seconds; server.saveparams[server.saveparamslen].changes = changes; server.saveparamslen++; } void resetServerSaveParams() { zfree(server.saveparams); server.saveparams = NULL; server.saveparamslen = 0; } void loadServerConfigFromString(char *config) { char *err = NULL; int linenum = 0, totlines, i; sds *lines; lines = sdssplitlen(config,strlen(config),"\n",1,&totlines); for (i = 0; i < totlines; i++) { sds *argv; int argc; linenum = i+1; lines[i] = sdstrim(lines[i]," \t\r\n"); /* Skip comments and blank lines */ if (lines[i][0] == '#' || lines[i][0] == '\0') continue; /* Split into arguments */ argv = sdssplitargs(lines[i],&argc); if (argv == NULL) { err = "Unbalanced quotes in configuration line"; goto loaderr; } /* Skip this line if the resulting command vector is empty. */ if (argc == 0) { sdsfreesplitres(argv,argc); return; } sdstolower(argv[0]); /* Execute config directives */ if (!strcasecmp(argv[0],"timeout") && argc == 2) { server.maxidletime = atoi(argv[1]); if (server.maxidletime < 0) { err = "Invalid timeout value"; goto loaderr; } } else if (!strcasecmp(argv[0],"tcp-keepalive") && argc == 2) { server.tcpkeepalive = atoi(argv[1]); if (server.tcpkeepalive < 0) { err = "Invalid tcp-keepalive value"; goto loaderr; } } else if (!strcasecmp(argv[0],"port") && argc == 2) { server.port = atoi(argv[1]); if (server.port < 0 || server.port > 65535) { err = "Invalid port"; goto loaderr; } } else if (!strcasecmp(argv[0],"bind") && argc == 2) { server.bindaddr = zstrdup(argv[1]); } else if (!strcasecmp(argv[0],"unixsocket") && argc == 2) { server.unixsocket = zstrdup(argv[1]); } else if (!strcasecmp(argv[0],"unixsocketperm") && argc == 2) { errno = 0; server.unixsocketperm = (mode_t)strtol(argv[1], NULL, 8); if (errno || server.unixsocketperm > 0777) { err = "Invalid socket file permissions"; goto loaderr; } } else if (!strcasecmp(argv[0],"save")) { if (argc == 3) { int seconds = atoi(argv[1]); int changes = atoi(argv[2]); if (seconds < 1 || changes < 0) { err = "Invalid save parameters"; goto loaderr; } appendServerSaveParams(seconds,changes); } else if (argc == 2 && !strcasecmp(argv[1],"")) { resetServerSaveParams(); } } else if (!strcasecmp(argv[0],"dir") && argc == 2) { if (chdir(argv[1]) == -1) { redisLog(REDIS_WARNING,"Can't chdir to '%s': %s", argv[1], strerror(errno)); exit(1); } } else if (!strcasecmp(argv[0],"loglevel") && argc == 2) { if (!strcasecmp(argv[1],"debug")) server.verbosity = REDIS_DEBUG; else if (!strcasecmp(argv[1],"verbose")) server.verbosity = REDIS_VERBOSE; else if (!strcasecmp(argv[1],"notice")) server.verbosity = REDIS_NOTICE; else if (!strcasecmp(argv[1],"warning")) server.verbosity = REDIS_WARNING; else { err = "Invalid log level. Must be one of debug, notice, warning"; goto loaderr; } } else if (!strcasecmp(argv[0],"logfile") && argc == 2) { FILE *logfp; server.logfile = zstrdup(argv[1]); if (!strcasecmp(server.logfile,"stdout")) { zfree(server.logfile); server.logfile = NULL; } if (server.logfile) { /* Test if we are able to open the file. The server will not * be able to abort just for this problem later... */ logfp = fopen(server.logfile,"a"); if (logfp == NULL) { err = sdscatprintf(sdsempty(), "Can't open the log file: %s", strerror(errno)); goto loaderr; } fclose(logfp); } } else if (!strcasecmp(argv[0],"syslog-enabled") && argc == 2) { if ((server.syslog_enabled = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"syslog-ident") && argc == 2) { if (server.syslog_ident) zfree(server.syslog_ident); server.syslog_ident = zstrdup(argv[1]); } else if (!strcasecmp(argv[0],"syslog-facility") && argc == 2) { struct { const char *name; const int value; } validSyslogFacilities[] = { {"user", LOG_USER}, {"local0", LOG_LOCAL0}, {"local1", LOG_LOCAL1}, {"local2", LOG_LOCAL2}, {"local3", LOG_LOCAL3}, {"local4", LOG_LOCAL4}, {"local5", LOG_LOCAL5}, {"local6", LOG_LOCAL6}, {"local7", LOG_LOCAL7}, {NULL, 0} }; int i; for (i = 0; validSyslogFacilities[i].name; i++) { if (!strcasecmp(validSyslogFacilities[i].name, argv[1])) { server.syslog_facility = validSyslogFacilities[i].value; break; } } if (!validSyslogFacilities[i].name) { err = "Invalid log facility. Must be one of USER or between LOCAL0-LOCAL7"; goto loaderr; } } else if (!strcasecmp(argv[0],"databases") && argc == 2) { server.dbnum = atoi(argv[1]); if (server.dbnum < 1) { err = "Invalid number of databases"; goto loaderr; } } else if (!strcasecmp(argv[0],"include") && argc == 2) { loadServerConfig(argv[1],NULL); } else if (!strcasecmp(argv[0],"maxclients") && argc == 2) { server.maxclients = atoi(argv[1]); if (server.maxclients < 1) { err = "Invalid max clients limit"; goto loaderr; } } else if (!strcasecmp(argv[0],"maxmemory") && argc == 2) { server.maxmemory = memtoll(argv[1],NULL); } else if (!strcasecmp(argv[0],"maxmemory-policy") && argc == 2) { if (!strcasecmp(argv[1],"volatile-lru")) { server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_LRU; } else if (!strcasecmp(argv[1],"volatile-random")) { server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_RANDOM; } else if (!strcasecmp(argv[1],"volatile-ttl")) { server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_TTL; } else if (!strcasecmp(argv[1],"allkeys-lru")) { server.maxmemory_policy = REDIS_MAXMEMORY_ALLKEYS_LRU; } else if (!strcasecmp(argv[1],"allkeys-random")) { server.maxmemory_policy = REDIS_MAXMEMORY_ALLKEYS_RANDOM; } else if (!strcasecmp(argv[1],"noeviction")) { server.maxmemory_policy = REDIS_MAXMEMORY_NO_EVICTION; } else { err = "Invalid maxmemory policy"; goto loaderr; } } else if (!strcasecmp(argv[0],"maxmemory-samples") && argc == 2) { server.maxmemory_samples = atoi(argv[1]); if (server.maxmemory_samples <= 0) { err = "maxmemory-samples must be 1 or greater"; goto loaderr; } } else if (!strcasecmp(argv[0],"slaveof") && argc == 3) { server.masterhost = sdsnew(argv[1]); server.masterport = atoi(argv[2]); server.repl_state = REDIS_REPL_CONNECT; } else if (!strcasecmp(argv[0],"repl-ping-slave-period") && argc == 2) { server.repl_ping_slave_period = atoi(argv[1]); if (server.repl_ping_slave_period <= 0) { err = "repl-ping-slave-period must be 1 or greater"; goto loaderr; } } else if (!strcasecmp(argv[0],"repl-timeout") && argc == 2) { server.repl_timeout = atoi(argv[1]); if (server.repl_timeout <= 0) { err = "repl-timeout must be 1 or greater"; goto loaderr; } } else if (!strcasecmp(argv[0],"repl-disable-tcp-nodelay") && argc==2) { if ((server.repl_disable_tcp_nodelay = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"masterauth") && argc == 2) { server.masterauth = zstrdup(argv[1]); } else if (!strcasecmp(argv[0],"slave-serve-stale-data") && argc == 2) { if ((server.repl_serve_stale_data = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"slave-read-only") && argc == 2) { if ((server.repl_slave_ro = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"rdbcompression") && argc == 2) { if ((server.rdb_compression = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"rdbchecksum") && argc == 2) { if ((server.rdb_checksum = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"activerehashing") && argc == 2) { if ((server.activerehashing = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"daemonize") && argc == 2) { if ((server.daemonize = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"hz") && argc == 2) { server.hz = atoi(argv[1]); if (server.hz < REDIS_MIN_HZ) server.hz = REDIS_MIN_HZ; if (server.hz > REDIS_MAX_HZ) server.hz = REDIS_MAX_HZ; } else if (!strcasecmp(argv[0],"appendonly") && argc == 2) { int yes; if ((yes = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } server.aof_state = yes ? REDIS_AOF_ON : REDIS_AOF_OFF; } else if (!strcasecmp(argv[0],"appendfilename") && argc == 2) { zfree(server.aof_filename); server.aof_filename = zstrdup(argv[1]); } else if (!strcasecmp(argv[0],"no-appendfsync-on-rewrite") && argc == 2) { if ((server.aof_no_fsync_on_rewrite= yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"appendfsync") && argc == 2) { if (!strcasecmp(argv[1],"no")) { server.aof_fsync = AOF_FSYNC_NO; } else if (!strcasecmp(argv[1],"always")) { server.aof_fsync = AOF_FSYNC_ALWAYS; } else if (!strcasecmp(argv[1],"everysec")) { server.aof_fsync = AOF_FSYNC_EVERYSEC; } else { err = "argument must be 'no', 'always' or 'everysec'"; goto loaderr; } } else if (!strcasecmp(argv[0],"auto-aof-rewrite-percentage") && argc == 2) { server.aof_rewrite_perc = atoi(argv[1]); if (server.aof_rewrite_perc < 0) { err = "Invalid negative percentage for AOF auto rewrite"; goto loaderr; } } else if (!strcasecmp(argv[0],"auto-aof-rewrite-min-size") && argc == 2) { server.aof_rewrite_min_size = memtoll(argv[1],NULL); } else if (!strcasecmp(argv[0],"aof-rewrite-incremental-fsync") && argc == 2) { if ((server.aof_rewrite_incremental_fsync = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"requirepass") && argc == 2) { if (strlen(argv[1]) > REDIS_AUTHPASS_MAX_LEN) { err = "Password is longer than REDIS_AUTHPASS_MAX_LEN"; goto loaderr; } server.requirepass = zstrdup(argv[1]); } else if (!strcasecmp(argv[0],"pidfile") && argc == 2) { zfree(server.pidfile); server.pidfile = zstrdup(argv[1]); } else if (!strcasecmp(argv[0],"dbfilename") && argc == 2) { zfree(server.rdb_filename); server.rdb_filename = zstrdup(argv[1]); } else if (!strcasecmp(argv[0],"hash-max-ziplist-entries") && argc == 2) { server.hash_max_ziplist_entries = memtoll(argv[1], NULL); } else if (!strcasecmp(argv[0],"hash-max-ziplist-value") && argc == 2) { server.hash_max_ziplist_value = memtoll(argv[1], NULL); } else if (!strcasecmp(argv[0],"list-max-ziplist-entries") && argc == 2){ server.list_max_ziplist_entries = memtoll(argv[1], NULL); } else if (!strcasecmp(argv[0],"list-max-ziplist-value") && argc == 2) { server.list_max_ziplist_value = memtoll(argv[1], NULL); } else if (!strcasecmp(argv[0],"set-max-intset-entries") && argc == 2) { server.set_max_intset_entries = memtoll(argv[1], NULL); } else if (!strcasecmp(argv[0],"zset-max-ziplist-entries") && argc == 2) { server.zset_max_ziplist_entries = memtoll(argv[1], NULL); } else if (!strcasecmp(argv[0],"zset-max-ziplist-value") && argc == 2) { server.zset_max_ziplist_value = memtoll(argv[1], NULL); } else if (!strcasecmp(argv[0],"rename-command") && argc == 3) { struct redisCommand *cmd = lookupCommand(argv[1]); int retval; if (!cmd) { err = "No such command in rename-command"; goto loaderr; } /* If the target command name is the empty string we just * remove it from the command table. */ retval = dictDelete(server.commands, argv[1]); redisAssert(retval == DICT_OK); /* Otherwise we re-add the command under a different name. */ if (sdslen(argv[2]) != 0) { sds copy = sdsdup(argv[2]); retval = dictAdd(server.commands, copy, cmd); if (retval != DICT_OK) { sdsfree(copy); err = "Target command name already exists"; goto loaderr; } } } else if (!strcasecmp(argv[0],"lua-time-limit") && argc == 2) { server.lua_time_limit = strtoll(argv[1],NULL,10); } else if (!strcasecmp(argv[0],"slowlog-log-slower-than") && argc == 2) { server.slowlog_log_slower_than = strtoll(argv[1],NULL,10); } else if (!strcasecmp(argv[0],"slowlog-max-len") && argc == 2) { server.slowlog_max_len = strtoll(argv[1],NULL,10); } else if (!strcasecmp(argv[0],"client-output-buffer-limit") && argc == 5) { int class = getClientLimitClassByName(argv[1]); unsigned long long hard, soft; int soft_seconds; if (class == -1) { err = "Unrecognized client limit class"; goto loaderr; } hard = memtoll(argv[2],NULL); soft = memtoll(argv[3],NULL); soft_seconds = atoi(argv[4]); if (soft_seconds < 0) { err = "Negative number of seconds in soft limit is invalid"; goto loaderr; } server.client_obuf_limits[class].hard_limit_bytes = hard; server.client_obuf_limits[class].soft_limit_bytes = soft; server.client_obuf_limits[class].soft_limit_seconds = soft_seconds; } else if (!strcasecmp(argv[0],"stop-writes-on-bgsave-error") && argc == 2) { if ((server.stop_writes_on_bgsave_err = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } } else if (!strcasecmp(argv[0],"slave-priority") && argc == 2) { server.slave_priority = atoi(argv[1]); } else if (!strcasecmp(argv[0],"sentinel")) { /* argc == 1 is handled by main() as we need to enter the sentinel * mode ASAP. */ if (argc != 1) { if (!server.sentinel_mode) { err = "sentinel directive while not in sentinel mode"; goto loaderr; } err = sentinelHandleConfiguration(argv+1,argc-1); if (err) goto loaderr; } } else { err = "Bad directive or wrong number of arguments"; goto loaderr; } sdsfreesplitres(argv,argc); } sdsfreesplitres(lines,totlines); return; loaderr: fprintf(stderr, "\n*** FATAL CONFIG FILE ERROR ***\n"); fprintf(stderr, "Reading the configuration file, at line %d\n", linenum); fprintf(stderr, ">>> '%s'\n", lines[i]); fprintf(stderr, "%s\n", err); exit(1); } /* Load the server configuration from the specified filename. * The function appends the additional configuration directives stored * in the 'options' string to the config file before loading. * * Both filename and options can be NULL, in such a case are considered * empty. This way loadServerConfig can be used to just load a file or * just load a string. */ void loadServerConfig(char *filename, char *options) { sds config = sdsempty(); char buf[REDIS_CONFIGLINE_MAX+1]; /* Load the file content */ if (filename) { FILE *fp; if (filename[0] == '-' && filename[1] == '\0') { fp = stdin; } else { if ((fp = fopen(filename,"r")) == NULL) { redisLog(REDIS_WARNING, "Fatal error, can't open config file '%s'", filename); exit(1); } } while(fgets(buf,REDIS_CONFIGLINE_MAX+1,fp) != NULL) config = sdscat(config,buf); if (fp != stdin) fclose(fp); } /* Append the additional options */ if (options) { config = sdscat(config,"\n"); config = sdscat(config,options); } loadServerConfigFromString(config); sdsfree(config); } /*----------------------------------------------------------------------------- * CONFIG command for remote configuration *----------------------------------------------------------------------------*/ void configSetCommand(redisClient *c) { robj *o; long long ll; redisAssertWithInfo(c,c->argv[2],c->argv[2]->encoding == REDIS_ENCODING_RAW); redisAssertWithInfo(c,c->argv[2],c->argv[3]->encoding == REDIS_ENCODING_RAW); o = c->argv[3]; if (!strcasecmp(c->argv[2]->ptr,"dbfilename")) { zfree(server.rdb_filename); server.rdb_filename = zstrdup(o->ptr); } else if (!strcasecmp(c->argv[2]->ptr,"requirepass")) { if (sdslen(o->ptr) > REDIS_AUTHPASS_MAX_LEN) goto badfmt; zfree(server.requirepass); server.requirepass = ((char*)o->ptr)[0] ? zstrdup(o->ptr) : NULL; } else if (!strcasecmp(c->argv[2]->ptr,"masterauth")) { zfree(server.masterauth); server.masterauth = ((char*)o->ptr)[0] ? zstrdup(o->ptr) : NULL; } else if (!strcasecmp(c->argv[2]->ptr,"maxmemory")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.maxmemory = ll; if (server.maxmemory) { if (server.maxmemory < zmalloc_used_memory()) { redisLog(REDIS_WARNING,"WARNING: the new maxmemory value set via CONFIG SET is smaller than the current memory usage. This will result in keys eviction and/or inability to accept new write commands depending on the maxmemory-policy."); } freeMemoryIfNeeded(); } } else if (!strcasecmp(c->argv[2]->ptr,"hz")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.hz = (int) ll; if (server.hz < REDIS_MIN_HZ) server.hz = REDIS_MIN_HZ; if (server.hz > REDIS_MAX_HZ) server.hz = REDIS_MAX_HZ; } else if (!strcasecmp(c->argv[2]->ptr,"maxmemory-policy")) { if (!strcasecmp(o->ptr,"volatile-lru")) { server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_LRU; } else if (!strcasecmp(o->ptr,"volatile-random")) { server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_RANDOM; } else if (!strcasecmp(o->ptr,"volatile-ttl")) { server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_TTL; } else if (!strcasecmp(o->ptr,"allkeys-lru")) { server.maxmemory_policy = REDIS_MAXMEMORY_ALLKEYS_LRU; } else if (!strcasecmp(o->ptr,"allkeys-random")) { server.maxmemory_policy = REDIS_MAXMEMORY_ALLKEYS_RANDOM; } else if (!strcasecmp(o->ptr,"noeviction")) { server.maxmemory_policy = REDIS_MAXMEMORY_NO_EVICTION; } else { goto badfmt; } } else if (!strcasecmp(c->argv[2]->ptr,"maxmemory-samples")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll <= 0) goto badfmt; server.maxmemory_samples = ll; } else if (!strcasecmp(c->argv[2]->ptr,"timeout")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0 || ll > LONG_MAX) goto badfmt; server.maxidletime = ll; } else if (!strcasecmp(c->argv[2]->ptr,"tcp-keepalive")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0 || ll > INT_MAX) goto badfmt; server.tcpkeepalive = ll; } else if (!strcasecmp(c->argv[2]->ptr,"appendfsync")) { if (!strcasecmp(o->ptr,"no")) { server.aof_fsync = AOF_FSYNC_NO; } else if (!strcasecmp(o->ptr,"everysec")) { server.aof_fsync = AOF_FSYNC_EVERYSEC; } else if (!strcasecmp(o->ptr,"always")) { server.aof_fsync = AOF_FSYNC_ALWAYS; } else { goto badfmt; } } else if (!strcasecmp(c->argv[2]->ptr,"no-appendfsync-on-rewrite")) { int yn = yesnotoi(o->ptr); if (yn == -1) goto badfmt; server.aof_no_fsync_on_rewrite = yn; } else if (!strcasecmp(c->argv[2]->ptr,"appendonly")) { int enable = yesnotoi(o->ptr); if (enable == -1) goto badfmt; if (enable == 0 && server.aof_state != REDIS_AOF_OFF) { stopAppendOnly(); } else if (enable && server.aof_state == REDIS_AOF_OFF) { if (startAppendOnly() == REDIS_ERR) { addReplyError(c, "Unable to turn on AOF. Check server logs."); return; } } } else if (!strcasecmp(c->argv[2]->ptr,"auto-aof-rewrite-percentage")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.aof_rewrite_perc = ll; } else if (!strcasecmp(c->argv[2]->ptr,"auto-aof-rewrite-min-size")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.aof_rewrite_min_size = ll; } else if (!strcasecmp(c->argv[2]->ptr,"aof-rewrite-incremental-fsync")) { int yn = yesnotoi(o->ptr); if (yn == -1) goto badfmt; server.aof_rewrite_incremental_fsync = yn; } else if (!strcasecmp(c->argv[2]->ptr,"save")) { int vlen, j; sds *v = sdssplitlen(o->ptr,sdslen(o->ptr)," ",1,&vlen); /* Perform sanity check before setting the new config: * - Even number of args * - Seconds >= 1, changes >= 0 */ if (vlen & 1) { sdsfreesplitres(v,vlen); goto badfmt; } for (j = 0; j < vlen; j++) { char *eptr; long val; val = strtoll(v[j], &eptr, 10); if (eptr[0] != '\0' || ((j & 1) == 0 && val < 1) || ((j & 1) == 1 && val < 0)) { sdsfreesplitres(v,vlen); goto badfmt; } } /* Finally set the new config */ resetServerSaveParams(); for (j = 0; j < vlen; j += 2) { time_t seconds; int changes; seconds = strtoll(v[j],NULL,10); changes = strtoll(v[j+1],NULL,10); appendServerSaveParams(seconds, changes); } sdsfreesplitres(v,vlen); } else if (!strcasecmp(c->argv[2]->ptr,"slave-serve-stale-data")) { int yn = yesnotoi(o->ptr); if (yn == -1) goto badfmt; server.repl_serve_stale_data = yn; } else if (!strcasecmp(c->argv[2]->ptr,"slave-read-only")) { int yn = yesnotoi(o->ptr); if (yn == -1) goto badfmt; server.repl_slave_ro = yn; } else if (!strcasecmp(c->argv[2]->ptr,"dir")) { if (chdir((char*)o->ptr) == -1) { addReplyErrorFormat(c,"Changing directory: %s", strerror(errno)); return; } } else if (!strcasecmp(c->argv[2]->ptr,"hash-max-ziplist-entries")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.hash_max_ziplist_entries = ll; } else if (!strcasecmp(c->argv[2]->ptr,"hash-max-ziplist-value")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.hash_max_ziplist_value = ll; } else if (!strcasecmp(c->argv[2]->ptr,"list-max-ziplist-entries")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.list_max_ziplist_entries = ll; } else if (!strcasecmp(c->argv[2]->ptr,"list-max-ziplist-value")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.list_max_ziplist_value = ll; } else if (!strcasecmp(c->argv[2]->ptr,"set-max-intset-entries")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.set_max_intset_entries = ll; } else if (!strcasecmp(c->argv[2]->ptr,"zset-max-ziplist-entries")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.zset_max_ziplist_entries = ll; } else if (!strcasecmp(c->argv[2]->ptr,"zset-max-ziplist-value")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.zset_max_ziplist_value = ll; } else if (!strcasecmp(c->argv[2]->ptr,"lua-time-limit")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.lua_time_limit = ll; } else if (!strcasecmp(c->argv[2]->ptr,"slowlog-log-slower-than")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR) goto badfmt; server.slowlog_log_slower_than = ll; } else if (!strcasecmp(c->argv[2]->ptr,"slowlog-max-len")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.slowlog_max_len = (unsigned)ll; } else if (!strcasecmp(c->argv[2]->ptr,"loglevel")) { if (!strcasecmp(o->ptr,"warning")) { server.verbosity = REDIS_WARNING; } else if (!strcasecmp(o->ptr,"notice")) { server.verbosity = REDIS_NOTICE; } else if (!strcasecmp(o->ptr,"verbose")) { server.verbosity = REDIS_VERBOSE; } else if (!strcasecmp(o->ptr,"debug")) { server.verbosity = REDIS_DEBUG; } else { goto badfmt; } } else if (!strcasecmp(c->argv[2]->ptr,"client-output-buffer-limit")) { int vlen, j; sds *v = sdssplitlen(o->ptr,sdslen(o->ptr)," ",1,&vlen); /* We need a multiple of 4: */ if (vlen % 4) { sdsfreesplitres(v,vlen); goto badfmt; } /* Sanity check of single arguments, so that we either refuse the * whole configuration string or accept it all, even if a single * error in a single client class is present. */ for (j = 0; j < vlen; j++) { char *eptr; long val; if ((j % 4) == 0) { if (getClientLimitClassByName(v[j]) == -1) { sdsfreesplitres(v,vlen); goto badfmt; } } else { val = strtoll(v[j], &eptr, 10); if (eptr[0] != '\0' || val < 0) { sdsfreesplitres(v,vlen); goto badfmt; } } } /* Finally set the new config */ for (j = 0; j < vlen; j += 4) { int class; unsigned long long hard, soft; int soft_seconds; class = getClientLimitClassByName(v[j]); hard = strtoll(v[j+1],NULL,10); soft = strtoll(v[j+2],NULL,10); soft_seconds = strtoll(v[j+3],NULL,10); server.client_obuf_limits[class].hard_limit_bytes = hard; server.client_obuf_limits[class].soft_limit_bytes = soft; server.client_obuf_limits[class].soft_limit_seconds = soft_seconds; } sdsfreesplitres(v,vlen); } else if (!strcasecmp(c->argv[2]->ptr,"stop-writes-on-bgsave-error")) { int yn = yesnotoi(o->ptr); if (yn == -1) goto badfmt; server.stop_writes_on_bgsave_err = yn; } else if (!strcasecmp(c->argv[2]->ptr,"repl-ping-slave-period")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll <= 0) goto badfmt; server.repl_ping_slave_period = ll; } else if (!strcasecmp(c->argv[2]->ptr,"repl-timeout")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll <= 0) goto badfmt; server.repl_timeout = ll; } else if (!strcasecmp(c->argv[2]->ptr,"watchdog-period")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; if (ll) enableWatchdog(ll); else disableWatchdog(); } else if (!strcasecmp(c->argv[2]->ptr,"rdbcompression")) { int yn = yesnotoi(o->ptr); if (yn == -1) goto badfmt; server.rdb_compression = yn; } else if (!strcasecmp(c->argv[2]->ptr,"rdbchecksum")) { int yn = yesnotoi(o->ptr); if (yn == -1) goto badfmt; server.rdb_checksum = yn; } else if (!strcasecmp(c->argv[2]->ptr,"repl-disable-tcp-nodelay")) { int yn = yesnotoi(o->ptr); if (yn == -1) goto badfmt; server.repl_disable_tcp_nodelay = yn; } else if (!strcasecmp(c->argv[2]->ptr,"slave-priority")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll <= 0) goto badfmt; server.slave_priority = ll; } else { addReplyErrorFormat(c,"Unsupported CONFIG parameter: %s", (char*)c->argv[2]->ptr); return; } addReply(c,shared.ok); return; badfmt: /* Bad format errors */ addReplyErrorFormat(c,"Invalid argument '%s' for CONFIG SET '%s'", (char*)o->ptr, (char*)c->argv[2]->ptr); } #define config_get_string_field(_name,_var) do { \ if (stringmatch(pattern,_name,0)) { \ addReplyBulkCString(c,_name); \ addReplyBulkCString(c,_var ? _var : ""); \ matches++; \ } \ } while(0); #define config_get_bool_field(_name,_var) do { \ if (stringmatch(pattern,_name,0)) { \ addReplyBulkCString(c,_name); \ addReplyBulkCString(c,_var ? "yes" : "no"); \ matches++; \ } \ } while(0); #define config_get_numerical_field(_name,_var) do { \ if (stringmatch(pattern,_name,0)) { \ ll2string(buf,sizeof(buf),_var); \ addReplyBulkCString(c,_name); \ addReplyBulkCString(c,buf); \ matches++; \ } \ } while(0); void configGetCommand(redisClient *c) { robj *o = c->argv[2]; void *replylen = addDeferredMultiBulkLength(c); char *pattern = o->ptr; char buf[128]; int matches = 0; redisAssertWithInfo(c,o,o->encoding == REDIS_ENCODING_RAW); /* String values */ config_get_string_field("dbfilename",server.rdb_filename); config_get_string_field("requirepass",server.requirepass); config_get_string_field("masterauth",server.masterauth); config_get_string_field("bind",server.bindaddr); config_get_string_field("unixsocket",server.unixsocket); config_get_string_field("logfile",server.logfile); config_get_string_field("pidfile",server.pidfile); /* Numerical values */ config_get_numerical_field("maxmemory",server.maxmemory); config_get_numerical_field("maxmemory-samples",server.maxmemory_samples); config_get_numerical_field("timeout",server.maxidletime); config_get_numerical_field("tcp-keepalive",server.tcpkeepalive); config_get_numerical_field("auto-aof-rewrite-percentage", server.aof_rewrite_perc); config_get_numerical_field("auto-aof-rewrite-min-size", server.aof_rewrite_min_size); config_get_numerical_field("hash-max-ziplist-entries", server.hash_max_ziplist_entries); config_get_numerical_field("hash-max-ziplist-value", server.hash_max_ziplist_value); config_get_numerical_field("list-max-ziplist-entries", server.list_max_ziplist_entries); config_get_numerical_field("list-max-ziplist-value", server.list_max_ziplist_value); config_get_numerical_field("set-max-intset-entries", server.set_max_intset_entries); config_get_numerical_field("zset-max-ziplist-entries", server.zset_max_ziplist_entries); config_get_numerical_field("zset-max-ziplist-value", server.zset_max_ziplist_value); config_get_numerical_field("lua-time-limit",server.lua_time_limit); config_get_numerical_field("slowlog-log-slower-than", server.slowlog_log_slower_than); config_get_numerical_field("slowlog-max-len", server.slowlog_max_len); config_get_numerical_field("port",server.port); config_get_numerical_field("databases",server.dbnum); config_get_numerical_field("repl-ping-slave-period",server.repl_ping_slave_period); config_get_numerical_field("repl-timeout",server.repl_timeout); config_get_numerical_field("maxclients",server.maxclients); config_get_numerical_field("watchdog-period",server.watchdog_period); config_get_numerical_field("slave-priority",server.slave_priority); config_get_numerical_field("hz",server.hz); /* Bool (yes/no) values */ config_get_bool_field("no-appendfsync-on-rewrite", server.aof_no_fsync_on_rewrite); config_get_bool_field("slave-serve-stale-data", server.repl_serve_stale_data); config_get_bool_field("slave-read-only", server.repl_slave_ro); config_get_bool_field("stop-writes-on-bgsave-error", server.stop_writes_on_bgsave_err); config_get_bool_field("daemonize", server.daemonize); config_get_bool_field("rdbcompression", server.rdb_compression); config_get_bool_field("rdbchecksum", server.rdb_checksum); config_get_bool_field("activerehashing", server.activerehashing); config_get_bool_field("repl-disable-tcp-nodelay", server.repl_disable_tcp_nodelay); config_get_bool_field("aof-rewrite-incremental-fsync", server.aof_rewrite_incremental_fsync); /* Everything we can't handle with macros follows. */ if (stringmatch(pattern,"appendonly",0)) { addReplyBulkCString(c,"appendonly"); addReplyBulkCString(c,server.aof_state == REDIS_AOF_OFF ? "no" : "yes"); matches++; } if (stringmatch(pattern,"dir",0)) { char buf[1024]; if (getcwd(buf,sizeof(buf)) == NULL) buf[0] = '\0'; addReplyBulkCString(c,"dir"); addReplyBulkCString(c,buf); matches++; } if (stringmatch(pattern,"maxmemory-policy",0)) { char *s; switch(server.maxmemory_policy) { case REDIS_MAXMEMORY_VOLATILE_LRU: s = "volatile-lru"; break; case REDIS_MAXMEMORY_VOLATILE_TTL: s = "volatile-ttl"; break; case REDIS_MAXMEMORY_VOLATILE_RANDOM: s = "volatile-random"; break; case REDIS_MAXMEMORY_ALLKEYS_LRU: s = "allkeys-lru"; break; case REDIS_MAXMEMORY_ALLKEYS_RANDOM: s = "allkeys-random"; break; case REDIS_MAXMEMORY_NO_EVICTION: s = "noeviction"; break; default: s = "unknown"; break; /* too harmless to panic */ } addReplyBulkCString(c,"maxmemory-policy"); addReplyBulkCString(c,s); matches++; } if (stringmatch(pattern,"appendfsync",0)) { char *policy; switch(server.aof_fsync) { case AOF_FSYNC_NO: policy = "no"; break; case AOF_FSYNC_EVERYSEC: policy = "everysec"; break; case AOF_FSYNC_ALWAYS: policy = "always"; break; default: policy = "unknown"; break; /* too harmless to panic */ } addReplyBulkCString(c,"appendfsync"); addReplyBulkCString(c,policy); matches++; } if (stringmatch(pattern,"save",0)) { sds buf = sdsempty(); int j; for (j = 0; j < server.saveparamslen; j++) { buf = sdscatprintf(buf,"%ld %d", server.saveparams[j].seconds, server.saveparams[j].changes); if (j != server.saveparamslen-1) buf = sdscatlen(buf," ",1); } addReplyBulkCString(c,"save"); addReplyBulkCString(c,buf); sdsfree(buf); matches++; } if (stringmatch(pattern,"loglevel",0)) { char *s; switch(server.verbosity) { case REDIS_WARNING: s = "warning"; break; case REDIS_VERBOSE: s = "verbose"; break; case REDIS_NOTICE: s = "notice"; break; case REDIS_DEBUG: s = "debug"; break; default: s = "unknown"; break; /* too harmless to panic */ } addReplyBulkCString(c,"loglevel"); addReplyBulkCString(c,s); matches++; } if (stringmatch(pattern,"client-output-buffer-limit",0)) { sds buf = sdsempty(); int j; for (j = 0; j < REDIS_CLIENT_LIMIT_NUM_CLASSES; j++) { buf = sdscatprintf(buf,"%s %llu %llu %ld", getClientLimitClassName(j), server.client_obuf_limits[j].hard_limit_bytes, server.client_obuf_limits[j].soft_limit_bytes, (long) server.client_obuf_limits[j].soft_limit_seconds); if (j != REDIS_CLIENT_LIMIT_NUM_CLASSES-1) buf = sdscatlen(buf," ",1); } addReplyBulkCString(c,"client-output-buffer-limit"); addReplyBulkCString(c,buf); sdsfree(buf); matches++; } if (stringmatch(pattern,"unixsocketperm",0)) { char buf[32]; snprintf(buf,sizeof(buf),"%o",server.unixsocketperm); addReplyBulkCString(c,"unixsocketperm"); addReplyBulkCString(c,buf); matches++; } if (stringmatch(pattern,"slaveof",0)) { char buf[256]; addReplyBulkCString(c,"slaveof"); if (server.masterhost) snprintf(buf,sizeof(buf),"%s %d", server.masterhost, server.masterport); else buf[0] = '\0'; addReplyBulkCString(c,buf); matches++; } setDeferredMultiBulkLength(c,replylen,matches*2); } void configCommand(redisClient *c) { if (!strcasecmp(c->argv[1]->ptr,"set")) { if (c->argc != 4) goto badarity; configSetCommand(c); } else if (!strcasecmp(c->argv[1]->ptr,"get")) { if (c->argc != 3) goto badarity; configGetCommand(c); } else if (!strcasecmp(c->argv[1]->ptr,"resetstat")) { if (c->argc != 2) goto badarity; server.stat_keyspace_hits = 0; server.stat_keyspace_misses = 0; server.stat_numcommands = 0; server.stat_numconnections = 0; server.stat_expiredkeys = 0; server.stat_rejected_conn = 0; server.stat_fork_time = 0; server.aof_delayed_fsync = 0; resetCommandTableStats(); addReply(c,shared.ok); } else { addReplyError(c, "CONFIG subcommand must be one of GET, SET, RESETSTAT"); } return; badarity: addReplyErrorFormat(c,"Wrong number of arguments for CONFIG %s", (char*) c->argv[1]->ptr); } redis-2.6.16/src/config.h000066400000000000000000000131571220734223100151240ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __CONFIG_H #define __CONFIG_H #ifdef __APPLE__ #include #endif /* Define redis_fstat to fstat or fstat64() */ #if defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6) #define redis_fstat fstat64 #define redis_stat stat64 #else #define redis_fstat fstat #define redis_stat stat #endif /* Test for proc filesystem */ #ifdef __linux__ #define HAVE_PROCFS 1 #endif /* Test for task_info() */ #if defined(__APPLE__) #define HAVE_TASKINFO 1 #endif /* Test for backtrace() */ #if defined(__APPLE__) || defined(__linux__) #define HAVE_BACKTRACE 1 #endif /* Test for polling API */ #ifdef __linux__ #define HAVE_EPOLL 1 #endif #if (defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_6)) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined (__NetBSD__) #define HAVE_KQUEUE 1 #endif #ifdef __sun #include #ifdef _DTRACE_VERSION #define HAVE_EVPORT 1 #endif #endif /* Define aof_fsync to fdatasync() in Linux and fsync() for all the rest */ #ifdef __linux__ #define aof_fsync fdatasync #else #define aof_fsync fsync #endif /* Define rdb_fsync_range to sync_file_range() on Linux, otherwise we use * the plain fsync() call. */ #ifdef __linux__ #include #include #if defined(__GLIBC__) && defined(__GLIBC_PREREQ) #if (LINUX_VERSION_CODE >= 0x020611 && __GLIBC_PREREQ(2, 6)) #define HAVE_SYNC_FILE_RANGE 1 #endif #else #if (LINUX_VERSION_CODE >= 0x020611) #define HAVE_SYNC_FILE_RANGE 1 #endif #endif #endif #ifdef HAVE_SYNC_FILE_RANGE #define rdb_fsync_range(fd,off,size) sync_file_range(fd,off,size,SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE) #else #define rdb_fsync_range(fd,off,size) fsync(fd) #endif /* Byte ordering detection */ #include /* This will likely define BYTE_ORDER */ #ifndef BYTE_ORDER #if (BSD >= 199103) # include #else #if defined(linux) || defined(__linux__) # include #else #define LITTLE_ENDIAN 1234 /* least-significant byte first (vax, pc) */ #define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp)*/ #if defined(__i386__) || defined(__x86_64__) || defined(__amd64__) || \ defined(vax) || defined(ns32000) || defined(sun386) || \ defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \ defined(__alpha__) || defined(__alpha) #define BYTE_ORDER LITTLE_ENDIAN #endif #if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \ defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \ defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\ defined(apollo) || defined(__convex__) || defined(_CRAY) || \ defined(__hppa) || defined(__hp9000) || \ defined(__hp9000s300) || defined(__hp9000s700) || \ defined (BIT_ZERO_ON_LEFT) || defined(m68k) || defined(__sparc) #define BYTE_ORDER BIG_ENDIAN #endif #endif /* linux */ #endif /* BSD */ #endif /* BYTE_ORDER */ /* Sometimes after including an OS-specific header that defines the * endianess we end with __BYTE_ORDER but not with BYTE_ORDER that is what * the Redis code uses. In this case let's define everything without the * underscores. */ #ifndef BYTE_ORDER #ifdef __BYTE_ORDER #if defined(__LITTLE_ENDIAN) && defined(__BIG_ENDIAN) #ifndef LITTLE_ENDIAN #define LITTLE_ENDIAN __LITTLE_ENDIAN #endif #ifndef BIG_ENDIAN #define BIG_ENDIAN __BIG_ENDIAN #endif #if (__BYTE_ORDER == __LITTLE_ENDIAN) #define BYTE_ORDER LITTLE_ENDIAN #else #define BYTE_ORDER BIG_ENDIAN #endif #endif #endif #endif #if !defined(BYTE_ORDER) || \ (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN) /* you must determine what the correct bit order is for * your compiler - the next line is an intentional error * which will force your compiles to bomb until you fix * the above macros. */ #error "Undefined or invalid BYTE_ORDER" #endif #if (__i386 || __amd64) && __GNUC__ #define GNUC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) #if GNUC_VERSION >= 40100 #define HAVE_ATOMIC #endif #endif #endif redis-2.6.16/src/crc64.c000066400000000000000000000246041220734223100145720ustar00rootroot00000000000000/* Redis uses the CRC64 variant with "Jones" coefficients and init value of 0. * * Specification of this CRC64 variant follows: * Name: crc-64-jones * Width: 64 bites * Poly: 0xad93d23594c935a9 * Reflected In: True * Xor_In: 0xffffffffffffffff * Reflected_Out: True * Xor_Out: 0x0 * Check("123456789"): 0xe9c6d914c4b8d9ca * * Copyright (c) 2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include static const uint64_t crc64_tab[256] = { UINT64_C(0x0000000000000000), UINT64_C(0x7ad870c830358979), UINT64_C(0xf5b0e190606b12f2), UINT64_C(0x8f689158505e9b8b), UINT64_C(0xc038e5739841b68f), UINT64_C(0xbae095bba8743ff6), UINT64_C(0x358804e3f82aa47d), UINT64_C(0x4f50742bc81f2d04), UINT64_C(0xab28ecb46814fe75), UINT64_C(0xd1f09c7c5821770c), UINT64_C(0x5e980d24087fec87), UINT64_C(0x24407dec384a65fe), UINT64_C(0x6b1009c7f05548fa), UINT64_C(0x11c8790fc060c183), UINT64_C(0x9ea0e857903e5a08), UINT64_C(0xe478989fa00bd371), UINT64_C(0x7d08ff3b88be6f81), UINT64_C(0x07d08ff3b88be6f8), UINT64_C(0x88b81eabe8d57d73), UINT64_C(0xf2606e63d8e0f40a), UINT64_C(0xbd301a4810ffd90e), UINT64_C(0xc7e86a8020ca5077), UINT64_C(0x4880fbd87094cbfc), UINT64_C(0x32588b1040a14285), UINT64_C(0xd620138fe0aa91f4), UINT64_C(0xacf86347d09f188d), UINT64_C(0x2390f21f80c18306), UINT64_C(0x594882d7b0f40a7f), UINT64_C(0x1618f6fc78eb277b), UINT64_C(0x6cc0863448deae02), UINT64_C(0xe3a8176c18803589), UINT64_C(0x997067a428b5bcf0), UINT64_C(0xfa11fe77117cdf02), UINT64_C(0x80c98ebf2149567b), UINT64_C(0x0fa11fe77117cdf0), UINT64_C(0x75796f2f41224489), UINT64_C(0x3a291b04893d698d), UINT64_C(0x40f16bccb908e0f4), UINT64_C(0xcf99fa94e9567b7f), UINT64_C(0xb5418a5cd963f206), UINT64_C(0x513912c379682177), UINT64_C(0x2be1620b495da80e), UINT64_C(0xa489f35319033385), UINT64_C(0xde51839b2936bafc), UINT64_C(0x9101f7b0e12997f8), UINT64_C(0xebd98778d11c1e81), UINT64_C(0x64b116208142850a), UINT64_C(0x1e6966e8b1770c73), UINT64_C(0x8719014c99c2b083), UINT64_C(0xfdc17184a9f739fa), UINT64_C(0x72a9e0dcf9a9a271), UINT64_C(0x08719014c99c2b08), UINT64_C(0x4721e43f0183060c), UINT64_C(0x3df994f731b68f75), UINT64_C(0xb29105af61e814fe), UINT64_C(0xc849756751dd9d87), UINT64_C(0x2c31edf8f1d64ef6), UINT64_C(0x56e99d30c1e3c78f), UINT64_C(0xd9810c6891bd5c04), UINT64_C(0xa3597ca0a188d57d), UINT64_C(0xec09088b6997f879), UINT64_C(0x96d1784359a27100), UINT64_C(0x19b9e91b09fcea8b), UINT64_C(0x636199d339c963f2), UINT64_C(0xdf7adabd7a6e2d6f), UINT64_C(0xa5a2aa754a5ba416), UINT64_C(0x2aca3b2d1a053f9d), UINT64_C(0x50124be52a30b6e4), UINT64_C(0x1f423fcee22f9be0), UINT64_C(0x659a4f06d21a1299), UINT64_C(0xeaf2de5e82448912), UINT64_C(0x902aae96b271006b), UINT64_C(0x74523609127ad31a), UINT64_C(0x0e8a46c1224f5a63), UINT64_C(0x81e2d7997211c1e8), UINT64_C(0xfb3aa75142244891), UINT64_C(0xb46ad37a8a3b6595), UINT64_C(0xceb2a3b2ba0eecec), UINT64_C(0x41da32eaea507767), UINT64_C(0x3b024222da65fe1e), UINT64_C(0xa2722586f2d042ee), UINT64_C(0xd8aa554ec2e5cb97), UINT64_C(0x57c2c41692bb501c), UINT64_C(0x2d1ab4dea28ed965), UINT64_C(0x624ac0f56a91f461), UINT64_C(0x1892b03d5aa47d18), UINT64_C(0x97fa21650afae693), UINT64_C(0xed2251ad3acf6fea), UINT64_C(0x095ac9329ac4bc9b), UINT64_C(0x7382b9faaaf135e2), UINT64_C(0xfcea28a2faafae69), UINT64_C(0x8632586aca9a2710), UINT64_C(0xc9622c4102850a14), UINT64_C(0xb3ba5c8932b0836d), UINT64_C(0x3cd2cdd162ee18e6), UINT64_C(0x460abd1952db919f), UINT64_C(0x256b24ca6b12f26d), UINT64_C(0x5fb354025b277b14), UINT64_C(0xd0dbc55a0b79e09f), UINT64_C(0xaa03b5923b4c69e6), UINT64_C(0xe553c1b9f35344e2), UINT64_C(0x9f8bb171c366cd9b), UINT64_C(0x10e3202993385610), UINT64_C(0x6a3b50e1a30ddf69), UINT64_C(0x8e43c87e03060c18), UINT64_C(0xf49bb8b633338561), UINT64_C(0x7bf329ee636d1eea), UINT64_C(0x012b592653589793), UINT64_C(0x4e7b2d0d9b47ba97), UINT64_C(0x34a35dc5ab7233ee), UINT64_C(0xbbcbcc9dfb2ca865), UINT64_C(0xc113bc55cb19211c), UINT64_C(0x5863dbf1e3ac9dec), UINT64_C(0x22bbab39d3991495), UINT64_C(0xadd33a6183c78f1e), UINT64_C(0xd70b4aa9b3f20667), UINT64_C(0x985b3e827bed2b63), UINT64_C(0xe2834e4a4bd8a21a), UINT64_C(0x6debdf121b863991), UINT64_C(0x1733afda2bb3b0e8), UINT64_C(0xf34b37458bb86399), UINT64_C(0x8993478dbb8deae0), UINT64_C(0x06fbd6d5ebd3716b), UINT64_C(0x7c23a61ddbe6f812), UINT64_C(0x3373d23613f9d516), UINT64_C(0x49aba2fe23cc5c6f), UINT64_C(0xc6c333a67392c7e4), UINT64_C(0xbc1b436e43a74e9d), UINT64_C(0x95ac9329ac4bc9b5), UINT64_C(0xef74e3e19c7e40cc), UINT64_C(0x601c72b9cc20db47), UINT64_C(0x1ac40271fc15523e), UINT64_C(0x5594765a340a7f3a), UINT64_C(0x2f4c0692043ff643), UINT64_C(0xa02497ca54616dc8), UINT64_C(0xdafce7026454e4b1), UINT64_C(0x3e847f9dc45f37c0), UINT64_C(0x445c0f55f46abeb9), UINT64_C(0xcb349e0da4342532), UINT64_C(0xb1eceec59401ac4b), UINT64_C(0xfebc9aee5c1e814f), UINT64_C(0x8464ea266c2b0836), UINT64_C(0x0b0c7b7e3c7593bd), UINT64_C(0x71d40bb60c401ac4), UINT64_C(0xe8a46c1224f5a634), UINT64_C(0x927c1cda14c02f4d), UINT64_C(0x1d148d82449eb4c6), UINT64_C(0x67ccfd4a74ab3dbf), UINT64_C(0x289c8961bcb410bb), UINT64_C(0x5244f9a98c8199c2), UINT64_C(0xdd2c68f1dcdf0249), UINT64_C(0xa7f41839ecea8b30), UINT64_C(0x438c80a64ce15841), UINT64_C(0x3954f06e7cd4d138), UINT64_C(0xb63c61362c8a4ab3), UINT64_C(0xcce411fe1cbfc3ca), UINT64_C(0x83b465d5d4a0eece), UINT64_C(0xf96c151de49567b7), UINT64_C(0x76048445b4cbfc3c), UINT64_C(0x0cdcf48d84fe7545), UINT64_C(0x6fbd6d5ebd3716b7), UINT64_C(0x15651d968d029fce), UINT64_C(0x9a0d8ccedd5c0445), UINT64_C(0xe0d5fc06ed698d3c), UINT64_C(0xaf85882d2576a038), UINT64_C(0xd55df8e515432941), UINT64_C(0x5a3569bd451db2ca), UINT64_C(0x20ed197575283bb3), UINT64_C(0xc49581ead523e8c2), UINT64_C(0xbe4df122e51661bb), UINT64_C(0x3125607ab548fa30), UINT64_C(0x4bfd10b2857d7349), UINT64_C(0x04ad64994d625e4d), UINT64_C(0x7e7514517d57d734), UINT64_C(0xf11d85092d094cbf), UINT64_C(0x8bc5f5c11d3cc5c6), UINT64_C(0x12b5926535897936), UINT64_C(0x686de2ad05bcf04f), UINT64_C(0xe70573f555e26bc4), UINT64_C(0x9ddd033d65d7e2bd), UINT64_C(0xd28d7716adc8cfb9), UINT64_C(0xa85507de9dfd46c0), UINT64_C(0x273d9686cda3dd4b), UINT64_C(0x5de5e64efd965432), UINT64_C(0xb99d7ed15d9d8743), UINT64_C(0xc3450e196da80e3a), UINT64_C(0x4c2d9f413df695b1), UINT64_C(0x36f5ef890dc31cc8), UINT64_C(0x79a59ba2c5dc31cc), UINT64_C(0x037deb6af5e9b8b5), UINT64_C(0x8c157a32a5b7233e), UINT64_C(0xf6cd0afa9582aa47), UINT64_C(0x4ad64994d625e4da), UINT64_C(0x300e395ce6106da3), UINT64_C(0xbf66a804b64ef628), UINT64_C(0xc5bed8cc867b7f51), UINT64_C(0x8aeeace74e645255), UINT64_C(0xf036dc2f7e51db2c), UINT64_C(0x7f5e4d772e0f40a7), UINT64_C(0x05863dbf1e3ac9de), UINT64_C(0xe1fea520be311aaf), UINT64_C(0x9b26d5e88e0493d6), UINT64_C(0x144e44b0de5a085d), UINT64_C(0x6e963478ee6f8124), UINT64_C(0x21c640532670ac20), UINT64_C(0x5b1e309b16452559), UINT64_C(0xd476a1c3461bbed2), UINT64_C(0xaeaed10b762e37ab), UINT64_C(0x37deb6af5e9b8b5b), UINT64_C(0x4d06c6676eae0222), UINT64_C(0xc26e573f3ef099a9), UINT64_C(0xb8b627f70ec510d0), UINT64_C(0xf7e653dcc6da3dd4), UINT64_C(0x8d3e2314f6efb4ad), UINT64_C(0x0256b24ca6b12f26), UINT64_C(0x788ec2849684a65f), UINT64_C(0x9cf65a1b368f752e), UINT64_C(0xe62e2ad306bafc57), UINT64_C(0x6946bb8b56e467dc), UINT64_C(0x139ecb4366d1eea5), UINT64_C(0x5ccebf68aecec3a1), UINT64_C(0x2616cfa09efb4ad8), UINT64_C(0xa97e5ef8cea5d153), UINT64_C(0xd3a62e30fe90582a), UINT64_C(0xb0c7b7e3c7593bd8), UINT64_C(0xca1fc72bf76cb2a1), UINT64_C(0x45775673a732292a), UINT64_C(0x3faf26bb9707a053), UINT64_C(0x70ff52905f188d57), UINT64_C(0x0a2722586f2d042e), UINT64_C(0x854fb3003f739fa5), UINT64_C(0xff97c3c80f4616dc), UINT64_C(0x1bef5b57af4dc5ad), UINT64_C(0x61372b9f9f784cd4), UINT64_C(0xee5fbac7cf26d75f), UINT64_C(0x9487ca0fff135e26), UINT64_C(0xdbd7be24370c7322), UINT64_C(0xa10fceec0739fa5b), UINT64_C(0x2e675fb4576761d0), UINT64_C(0x54bf2f7c6752e8a9), UINT64_C(0xcdcf48d84fe75459), UINT64_C(0xb71738107fd2dd20), UINT64_C(0x387fa9482f8c46ab), UINT64_C(0x42a7d9801fb9cfd2), UINT64_C(0x0df7adabd7a6e2d6), UINT64_C(0x772fdd63e7936baf), UINT64_C(0xf8474c3bb7cdf024), UINT64_C(0x829f3cf387f8795d), UINT64_C(0x66e7a46c27f3aa2c), UINT64_C(0x1c3fd4a417c62355), UINT64_C(0x935745fc4798b8de), UINT64_C(0xe98f353477ad31a7), UINT64_C(0xa6df411fbfb21ca3), UINT64_C(0xdc0731d78f8795da), UINT64_C(0x536fa08fdfd90e51), UINT64_C(0x29b7d047efec8728), }; uint64_t crc64(uint64_t crc, const unsigned char *s, uint64_t l) { uint64_t j; for (j = 0; j < l; j++) { uint8_t byte = s[j]; crc = crc64_tab[(uint8_t)crc ^ byte] ^ (crc >> 8); } return crc; } /* Test main */ #ifdef TEST_MAIN #include int main(void) { printf("e9c6d914c4b8d9ca == %016llx\n", (unsigned long long) crc64(0,(unsigned char*)"123456789",9)); return 0; } #endif redis-2.6.16/src/db.c000066400000000000000000000520661220734223100142410ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" #include #include void SlotToKeyAdd(robj *key); void SlotToKeyDel(robj *key); /*----------------------------------------------------------------------------- * C-level DB API *----------------------------------------------------------------------------*/ robj *lookupKey(redisDb *db, robj *key) { dictEntry *de = dictFind(db->dict,key->ptr); if (de) { robj *val = dictGetVal(de); /* Update the access time for the ageing algorithm. * Don't do it if we have a saving child, as this will trigger * a copy on write madness. */ if (server.rdb_child_pid == -1 && server.aof_child_pid == -1) val->lru = server.lruclock; return val; } else { return NULL; } } robj *lookupKeyRead(redisDb *db, robj *key) { robj *val; expireIfNeeded(db,key); val = lookupKey(db,key); if (val == NULL) server.stat_keyspace_misses++; else server.stat_keyspace_hits++; return val; } robj *lookupKeyWrite(redisDb *db, robj *key) { expireIfNeeded(db,key); return lookupKey(db,key); } robj *lookupKeyReadOrReply(redisClient *c, robj *key, robj *reply) { robj *o = lookupKeyRead(c->db, key); if (!o) addReply(c,reply); return o; } robj *lookupKeyWriteOrReply(redisClient *c, robj *key, robj *reply) { robj *o = lookupKeyWrite(c->db, key); if (!o) addReply(c,reply); return o; } /* Add the key to the DB. It's up to the caller to increment the reference * counter of the value if needed. * * The program is aborted if the key already exists. */ void dbAdd(redisDb *db, robj *key, robj *val) { sds copy = sdsdup(key->ptr); int retval = dictAdd(db->dict, copy, val); redisAssertWithInfo(NULL,key,retval == REDIS_OK); } /* Overwrite an existing key with a new value. Incrementing the reference * count of the new value is up to the caller. * This function does not modify the expire time of the existing key. * * The program is aborted if the key was not already present. */ void dbOverwrite(redisDb *db, robj *key, robj *val) { struct dictEntry *de = dictFind(db->dict,key->ptr); redisAssertWithInfo(NULL,key,de != NULL); dictReplace(db->dict, key->ptr, val); } /* High level Set operation. This function can be used in order to set * a key, whatever it was existing or not, to a new object. * * 1) The ref count of the value object is incremented. * 2) clients WATCHing for the destination key notified. * 3) The expire time of the key is reset (the key is made persistent). */ void setKey(redisDb *db, robj *key, robj *val) { if (lookupKeyWrite(db,key) == NULL) { dbAdd(db,key,val); } else { dbOverwrite(db,key,val); } incrRefCount(val); removeExpire(db,key); signalModifiedKey(db,key); } int dbExists(redisDb *db, robj *key) { return dictFind(db->dict,key->ptr) != NULL; } /* Return a random key, in form of a Redis object. * If there are no keys, NULL is returned. * * The function makes sure to return keys not already expired. */ robj *dbRandomKey(redisDb *db) { struct dictEntry *de; while(1) { sds key; robj *keyobj; de = dictGetRandomKey(db->dict); if (de == NULL) return NULL; key = dictGetKey(de); keyobj = createStringObject(key,sdslen(key)); if (dictFind(db->expires,key)) { if (expireIfNeeded(db,keyobj)) { decrRefCount(keyobj); continue; /* search for another key. This expired. */ } } return keyobj; } } /* Delete a key, value, and associated expiration entry if any, from the DB */ int dbDelete(redisDb *db, robj *key) { /* Deleting an entry from the expires dict will not free the sds of * the key, because it is shared with the main dictionary. */ if (dictSize(db->expires) > 0) dictDelete(db->expires,key->ptr); if (dictDelete(db->dict,key->ptr) == DICT_OK) { return 1; } else { return 0; } } long long emptyDb() { int j; long long removed = 0; for (j = 0; j < server.dbnum; j++) { removed += dictSize(server.db[j].dict); dictEmpty(server.db[j].dict); dictEmpty(server.db[j].expires); } return removed; } int selectDb(redisClient *c, int id) { if (id < 0 || id >= server.dbnum) return REDIS_ERR; c->db = &server.db[id]; return REDIS_OK; } /*----------------------------------------------------------------------------- * Hooks for key space changes. * * Every time a key in the database is modified the function * signalModifiedKey() is called. * * Every time a DB is flushed the function signalFlushDb() is called. *----------------------------------------------------------------------------*/ void signalModifiedKey(redisDb *db, robj *key) { touchWatchedKey(db,key); } void signalFlushedDb(int dbid) { touchWatchedKeysOnFlush(dbid); } /*----------------------------------------------------------------------------- * Type agnostic commands operating on the key space *----------------------------------------------------------------------------*/ void flushdbCommand(redisClient *c) { server.dirty += dictSize(c->db->dict); signalFlushedDb(c->db->id); dictEmpty(c->db->dict); dictEmpty(c->db->expires); addReply(c,shared.ok); } void flushallCommand(redisClient *c) { signalFlushedDb(-1); server.dirty += emptyDb(); addReply(c,shared.ok); if (server.rdb_child_pid != -1) { kill(server.rdb_child_pid,SIGUSR1); rdbRemoveTempFile(server.rdb_child_pid); } if (server.saveparamslen > 0) { /* Normally rdbSave() will reset dirty, but we don't want this here * as otherwise FLUSHALL will not be replicated nor put into the AOF. */ int saved_dirty = server.dirty; rdbSave(server.rdb_filename); server.dirty = saved_dirty; } server.dirty++; } void delCommand(redisClient *c) { int deleted = 0, j; for (j = 1; j < c->argc; j++) { if (dbDelete(c->db,c->argv[j])) { signalModifiedKey(c->db,c->argv[j]); server.dirty++; deleted++; } } addReplyLongLong(c,deleted); } void existsCommand(redisClient *c) { expireIfNeeded(c->db,c->argv[1]); if (dbExists(c->db,c->argv[1])) { addReply(c, shared.cone); } else { addReply(c, shared.czero); } } void selectCommand(redisClient *c) { long id; if (getLongFromObjectOrReply(c, c->argv[1], &id, "invalid DB index") != REDIS_OK) return; if (selectDb(c,id) == REDIS_ERR) { addReplyError(c,"invalid DB index"); } else { addReply(c,shared.ok); } } void randomkeyCommand(redisClient *c) { robj *key; if ((key = dbRandomKey(c->db)) == NULL) { addReply(c,shared.nullbulk); return; } addReplyBulk(c,key); decrRefCount(key); } void keysCommand(redisClient *c) { dictIterator *di; dictEntry *de; sds pattern = c->argv[1]->ptr; int plen = sdslen(pattern), allkeys; unsigned long numkeys = 0; void *replylen = addDeferredMultiBulkLength(c); di = dictGetSafeIterator(c->db->dict); allkeys = (pattern[0] == '*' && pattern[1] == '\0'); while((de = dictNext(di)) != NULL) { sds key = dictGetKey(de); robj *keyobj; if (allkeys || stringmatchlen(pattern,plen,key,sdslen(key),0)) { keyobj = createStringObject(key,sdslen(key)); if (expireIfNeeded(c->db,keyobj) == 0) { addReplyBulk(c,keyobj); numkeys++; } decrRefCount(keyobj); } } dictReleaseIterator(di); setDeferredMultiBulkLength(c,replylen,numkeys); } void dbsizeCommand(redisClient *c) { addReplyLongLong(c,dictSize(c->db->dict)); } void lastsaveCommand(redisClient *c) { addReplyLongLong(c,server.lastsave); } void typeCommand(redisClient *c) { robj *o; char *type; o = lookupKeyRead(c->db,c->argv[1]); if (o == NULL) { type = "none"; } else { switch(o->type) { case REDIS_STRING: type = "string"; break; case REDIS_LIST: type = "list"; break; case REDIS_SET: type = "set"; break; case REDIS_ZSET: type = "zset"; break; case REDIS_HASH: type = "hash"; break; default: type = "unknown"; break; } } addReplyStatus(c,type); } void shutdownCommand(redisClient *c) { int flags = 0; if (c->argc > 2) { addReply(c,shared.syntaxerr); return; } else if (c->argc == 2) { if (!strcasecmp(c->argv[1]->ptr,"nosave")) { flags |= REDIS_SHUTDOWN_NOSAVE; } else if (!strcasecmp(c->argv[1]->ptr,"save")) { flags |= REDIS_SHUTDOWN_SAVE; } else { addReply(c,shared.syntaxerr); return; } } if (prepareForShutdown(flags) == REDIS_OK) exit(0); addReplyError(c,"Errors trying to SHUTDOWN. Check logs."); } void renameGenericCommand(redisClient *c, int nx) { robj *o; long long expire; /* To use the same key as src and dst is probably an error */ if (sdscmp(c->argv[1]->ptr,c->argv[2]->ptr) == 0) { addReply(c,shared.sameobjecterr); return; } if ((o = lookupKeyWriteOrReply(c,c->argv[1],shared.nokeyerr)) == NULL) return; incrRefCount(o); expire = getExpire(c->db,c->argv[1]); if (lookupKeyWrite(c->db,c->argv[2]) != NULL) { if (nx) { decrRefCount(o); addReply(c,shared.czero); return; } /* Overwrite: delete the old key before creating the new one with the same name. */ dbDelete(c->db,c->argv[2]); } dbAdd(c->db,c->argv[2],o); if (expire != -1) setExpire(c->db,c->argv[2],expire); dbDelete(c->db,c->argv[1]); signalModifiedKey(c->db,c->argv[1]); signalModifiedKey(c->db,c->argv[2]); server.dirty++; addReply(c,nx ? shared.cone : shared.ok); } void renameCommand(redisClient *c) { renameGenericCommand(c,0); } void renamenxCommand(redisClient *c) { renameGenericCommand(c,1); } void moveCommand(redisClient *c) { robj *o; redisDb *src, *dst; int srcid; /* Obtain source and target DB pointers */ src = c->db; srcid = c->db->id; if (selectDb(c,atoi(c->argv[2]->ptr)) == REDIS_ERR) { addReply(c,shared.outofrangeerr); return; } dst = c->db; selectDb(c,srcid); /* Back to the source DB */ /* If the user is moving using as target the same * DB as the source DB it is probably an error. */ if (src == dst) { addReply(c,shared.sameobjecterr); return; } /* Check if the element exists and get a reference */ o = lookupKeyWrite(c->db,c->argv[1]); if (!o) { addReply(c,shared.czero); return; } /* Return zero if the key already exists in the target DB */ if (lookupKeyWrite(dst,c->argv[1]) != NULL) { addReply(c,shared.czero); return; } dbAdd(dst,c->argv[1],o); incrRefCount(o); /* OK! key moved, free the entry in the source DB */ dbDelete(src,c->argv[1]); server.dirty++; addReply(c,shared.cone); } /*----------------------------------------------------------------------------- * Expires API *----------------------------------------------------------------------------*/ int removeExpire(redisDb *db, robj *key) { /* An expire may only be removed if there is a corresponding entry in the * main dict. Otherwise, the key will never be freed. */ redisAssertWithInfo(NULL,key,dictFind(db->dict,key->ptr) != NULL); return dictDelete(db->expires,key->ptr) == DICT_OK; } void setExpire(redisDb *db, robj *key, long long when) { dictEntry *kde, *de; /* Reuse the sds from the main dict in the expire dict */ kde = dictFind(db->dict,key->ptr); redisAssertWithInfo(NULL,key,kde != NULL); de = dictReplaceRaw(db->expires,dictGetKey(kde)); dictSetSignedIntegerVal(de,when); } /* Return the expire time of the specified key, or -1 if no expire * is associated with this key (i.e. the key is non volatile) */ long long getExpire(redisDb *db, robj *key) { dictEntry *de; /* No expire? return ASAP */ if (dictSize(db->expires) == 0 || (de = dictFind(db->expires,key->ptr)) == NULL) return -1; /* The entry was found in the expire dict, this means it should also * be present in the main dict (safety check). */ redisAssertWithInfo(NULL,key,dictFind(db->dict,key->ptr) != NULL); return dictGetSignedIntegerVal(de); } /* Propagate expires into slaves and the AOF file. * When a key expires in the master, a DEL operation for this key is sent * to all the slaves and the AOF file if enabled. * * This way the key expiry is centralized in one place, and since both * AOF and the master->slave link guarantee operation ordering, everything * will be consistent even if we allow write operations against expiring * keys. */ void propagateExpire(redisDb *db, robj *key) { robj *argv[2]; argv[0] = shared.del; argv[1] = key; incrRefCount(argv[0]); incrRefCount(argv[1]); if (server.aof_state != REDIS_AOF_OFF) feedAppendOnlyFile(server.delCommand,db->id,argv,2); if (listLength(server.slaves)) replicationFeedSlaves(server.slaves,db->id,argv,2); decrRefCount(argv[0]); decrRefCount(argv[1]); } int expireIfNeeded(redisDb *db, robj *key) { long long when = getExpire(db,key); if (when < 0) return 0; /* No expire for this key */ /* Don't expire anything while loading. It will be done later. */ if (server.loading) return 0; /* If we are running in the context of a slave, return ASAP: * the slave key expiration is controlled by the master that will * send us synthesized DEL operations for expired keys. * * Still we try to return the right information to the caller, * that is, 0 if we think the key should be still valid, 1 if * we think the key is expired at this time. */ if (server.masterhost != NULL) { return mstime() > when; } /* Return when this key has not expired */ if (mstime() <= when) return 0; /* Delete the key */ server.stat_expiredkeys++; propagateExpire(db,key); return dbDelete(db,key); } /*----------------------------------------------------------------------------- * Expires Commands *----------------------------------------------------------------------------*/ /* This is the generic command implementation for EXPIRE, PEXPIRE, EXPIREAT * and PEXPIREAT. Because the commad second argument may be relative or absolute * the "basetime" argument is used to signal what the base time is (either 0 * for *AT variants of the command, or the current time for relative expires). * * unit is either UNIT_SECONDS or UNIT_MILLISECONDS, and is only used for * the argv[2] parameter. The basetime is always specified in milliseconds. */ void expireGenericCommand(redisClient *c, long long basetime, int unit) { robj *key = c->argv[1], *param = c->argv[2]; long long when; /* unix time in milliseconds when the key will expire. */ if (getLongLongFromObjectOrReply(c, param, &when, NULL) != REDIS_OK) return; if (unit == UNIT_SECONDS) when *= 1000; when += basetime; /* No key, return zero. */ if (lookupKeyRead(c->db,key) == NULL) { addReply(c,shared.czero); return; } /* EXPIRE with negative TTL, or EXPIREAT with a timestamp into the past * should never be executed as a DEL when load the AOF or in the context * of a slave instance. * * Instead we take the other branch of the IF statement setting an expire * (possibly in the past) and wait for an explicit DEL from the master. */ if (when <= mstime() && !server.loading && !server.masterhost) { robj *aux; redisAssertWithInfo(c,key,dbDelete(c->db,key)); server.dirty++; /* Replicate/AOF this as an explicit DEL. */ aux = createStringObject("DEL",3); rewriteClientCommandVector(c,2,aux,key); decrRefCount(aux); signalModifiedKey(c->db,key); addReply(c, shared.cone); return; } else { setExpire(c->db,key,when); addReply(c,shared.cone); signalModifiedKey(c->db,key); server.dirty++; return; } } void expireCommand(redisClient *c) { expireGenericCommand(c,mstime(),UNIT_SECONDS); } void expireatCommand(redisClient *c) { expireGenericCommand(c,0,UNIT_SECONDS); } void pexpireCommand(redisClient *c) { expireGenericCommand(c,mstime(),UNIT_MILLISECONDS); } void pexpireatCommand(redisClient *c) { expireGenericCommand(c,0,UNIT_MILLISECONDS); } void ttlGenericCommand(redisClient *c, int output_ms) { long long expire, ttl = -1; expire = getExpire(c->db,c->argv[1]); if (expire != -1) { ttl = expire-mstime(); if (ttl < 0) ttl = -1; } if (ttl == -1) { addReplyLongLong(c,-1); } else { addReplyLongLong(c,output_ms ? ttl : ((ttl+500)/1000)); } } void ttlCommand(redisClient *c) { ttlGenericCommand(c, 0); } void pttlCommand(redisClient *c) { ttlGenericCommand(c, 1); } void persistCommand(redisClient *c) { dictEntry *de; de = dictFind(c->db->dict,c->argv[1]->ptr); if (de == NULL) { addReply(c,shared.czero); } else { if (removeExpire(c->db,c->argv[1])) { addReply(c,shared.cone); server.dirty++; } else { addReply(c,shared.czero); } } } /* ----------------------------------------------------------------------------- * API to get key arguments from commands * ---------------------------------------------------------------------------*/ int *getKeysUsingCommandTable(struct redisCommand *cmd,robj **argv, int argc, int *numkeys) { int j, i = 0, last, *keys; REDIS_NOTUSED(argv); if (cmd->firstkey == 0) { *numkeys = 0; return NULL; } last = cmd->lastkey; if (last < 0) last = argc+last; keys = zmalloc(sizeof(int)*((last - cmd->firstkey)+1)); for (j = cmd->firstkey; j <= last; j += cmd->keystep) { redisAssert(j < argc); keys[i++] = j; } *numkeys = i; return keys; } int *getKeysFromCommand(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags) { if (cmd->getkeys_proc) { return cmd->getkeys_proc(cmd,argv,argc,numkeys,flags); } else { return getKeysUsingCommandTable(cmd,argv,argc,numkeys); } } void getKeysFreeResult(int *result) { zfree(result); } int *noPreloadGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags) { if (flags & REDIS_GETKEYS_PRELOAD) { *numkeys = 0; return NULL; } else { return getKeysUsingCommandTable(cmd,argv,argc,numkeys); } } int *renameGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags) { if (flags & REDIS_GETKEYS_PRELOAD) { int *keys = zmalloc(sizeof(int)); *numkeys = 1; keys[0] = 1; return keys; } else { return getKeysUsingCommandTable(cmd,argv,argc,numkeys); } } int *zunionInterGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags) { int i, num, *keys; REDIS_NOTUSED(cmd); REDIS_NOTUSED(flags); num = atoi(argv[2]->ptr); /* Sanity check. Don't return any key if the command is going to * reply with syntax error. */ if (num > (argc-3)) { *numkeys = 0; return NULL; } keys = zmalloc(sizeof(int)*num); for (i = 0; i < num; i++) keys[i] = 3+i; *numkeys = num; return keys; } redis-2.6.16/src/debug.c000066400000000000000000000727101220734223100147400ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" #include "sha1.h" /* SHA1 is used for DEBUG DIGEST */ #include #include #ifdef HAVE_BACKTRACE #include #include #include #endif /* HAVE_BACKTRACE */ /* ================================= Debugging ============================== */ /* Compute the sha1 of string at 's' with 'len' bytes long. * The SHA1 is then xored against the string pointed by digest. * Since xor is commutative, this operation is used in order to * "add" digests relative to unordered elements. * * So digest(a,b,c,d) will be the same of digest(b,a,c,d) */ void xorDigest(unsigned char *digest, void *ptr, size_t len) { SHA1_CTX ctx; unsigned char hash[20], *s = ptr; int j; SHA1Init(&ctx); SHA1Update(&ctx,s,len); SHA1Final(hash,&ctx); for (j = 0; j < 20; j++) digest[j] ^= hash[j]; } void xorObjectDigest(unsigned char *digest, robj *o) { o = getDecodedObject(o); xorDigest(digest,o->ptr,sdslen(o->ptr)); decrRefCount(o); } /* This function instead of just computing the SHA1 and xoring it * against digest, also perform the digest of "digest" itself and * replace the old value with the new one. * * So the final digest will be: * * digest = SHA1(digest xor SHA1(data)) * * This function is used every time we want to preserve the order so * that digest(a,b,c,d) will be different than digest(b,c,d,a) * * Also note that mixdigest("foo") followed by mixdigest("bar") * will lead to a different digest compared to "fo", "obar". */ void mixDigest(unsigned char *digest, void *ptr, size_t len) { SHA1_CTX ctx; char *s = ptr; xorDigest(digest,s,len); SHA1Init(&ctx); SHA1Update(&ctx,digest,20); SHA1Final(digest,&ctx); } void mixObjectDigest(unsigned char *digest, robj *o) { o = getDecodedObject(o); mixDigest(digest,o->ptr,sdslen(o->ptr)); decrRefCount(o); } /* Compute the dataset digest. Since keys, sets elements, hashes elements * are not ordered, we use a trick: every aggregate digest is the xor * of the digests of their elements. This way the order will not change * the result. For list instead we use a feedback entering the output digest * as input in order to ensure that a different ordered list will result in * a different digest. */ void computeDatasetDigest(unsigned char *final) { unsigned char digest[20]; char buf[128]; dictIterator *di = NULL; dictEntry *de; int j; uint32_t aux; memset(final,0,20); /* Start with a clean result */ for (j = 0; j < server.dbnum; j++) { redisDb *db = server.db+j; if (dictSize(db->dict) == 0) continue; di = dictGetIterator(db->dict); /* hash the DB id, so the same dataset moved in a different * DB will lead to a different digest */ aux = htonl(j); mixDigest(final,&aux,sizeof(aux)); /* Iterate this DB writing every entry */ while((de = dictNext(di)) != NULL) { sds key; robj *keyobj, *o; long long expiretime; memset(digest,0,20); /* This key-val digest */ key = dictGetKey(de); keyobj = createStringObject(key,sdslen(key)); mixDigest(digest,key,sdslen(key)); o = dictGetVal(de); aux = htonl(o->type); mixDigest(digest,&aux,sizeof(aux)); expiretime = getExpire(db,keyobj); /* Save the key and associated value */ if (o->type == REDIS_STRING) { mixObjectDigest(digest,o); } else if (o->type == REDIS_LIST) { listTypeIterator *li = listTypeInitIterator(o,0,REDIS_TAIL); listTypeEntry entry; while(listTypeNext(li,&entry)) { robj *eleobj = listTypeGet(&entry); mixObjectDigest(digest,eleobj); decrRefCount(eleobj); } listTypeReleaseIterator(li); } else if (o->type == REDIS_SET) { setTypeIterator *si = setTypeInitIterator(o); robj *ele; while((ele = setTypeNextObject(si)) != NULL) { xorObjectDigest(digest,ele); decrRefCount(ele); } setTypeReleaseIterator(si); } else if (o->type == REDIS_ZSET) { unsigned char eledigest[20]; if (o->encoding == REDIS_ENCODING_ZIPLIST) { unsigned char *zl = o->ptr; unsigned char *eptr, *sptr; unsigned char *vstr; unsigned int vlen; long long vll; double score; eptr = ziplistIndex(zl,0); redisAssert(eptr != NULL); sptr = ziplistNext(zl,eptr); redisAssert(sptr != NULL); while (eptr != NULL) { redisAssert(ziplistGet(eptr,&vstr,&vlen,&vll)); score = zzlGetScore(sptr); memset(eledigest,0,20); if (vstr != NULL) { mixDigest(eledigest,vstr,vlen); } else { ll2string(buf,sizeof(buf),vll); mixDigest(eledigest,buf,strlen(buf)); } snprintf(buf,sizeof(buf),"%.17g",score); mixDigest(eledigest,buf,strlen(buf)); xorDigest(digest,eledigest,20); zzlNext(zl,&eptr,&sptr); } } else if (o->encoding == REDIS_ENCODING_SKIPLIST) { zset *zs = o->ptr; dictIterator *di = dictGetIterator(zs->dict); dictEntry *de; while((de = dictNext(di)) != NULL) { robj *eleobj = dictGetKey(de); double *score = dictGetVal(de); snprintf(buf,sizeof(buf),"%.17g",*score); memset(eledigest,0,20); mixObjectDigest(eledigest,eleobj); mixDigest(eledigest,buf,strlen(buf)); xorDigest(digest,eledigest,20); } dictReleaseIterator(di); } else { redisPanic("Unknown sorted set encoding"); } } else if (o->type == REDIS_HASH) { hashTypeIterator *hi; robj *obj; hi = hashTypeInitIterator(o); while (hashTypeNext(hi) != REDIS_ERR) { unsigned char eledigest[20]; memset(eledigest,0,20); obj = hashTypeCurrentObject(hi,REDIS_HASH_KEY); mixObjectDigest(eledigest,obj); decrRefCount(obj); obj = hashTypeCurrentObject(hi,REDIS_HASH_VALUE); mixObjectDigest(eledigest,obj); decrRefCount(obj); xorDigest(digest,eledigest,20); } hashTypeReleaseIterator(hi); } else { redisPanic("Unknown object type"); } /* If the key has an expire, add it to the mix */ if (expiretime != -1) xorDigest(digest,"!!expire!!",10); /* We can finally xor the key-val digest to the final digest */ xorDigest(final,digest,20); decrRefCount(keyobj); } dictReleaseIterator(di); } } void debugCommand(redisClient *c) { if (!strcasecmp(c->argv[1]->ptr,"segfault")) { *((char*)-1) = 'x'; } else if (!strcasecmp(c->argv[1]->ptr,"oom")) { void *ptr = zmalloc(ULONG_MAX); /* Should trigger an out of memory. */ zfree(ptr); addReply(c,shared.ok); } else if (!strcasecmp(c->argv[1]->ptr,"assert")) { if (c->argc >= 3) c->argv[2] = tryObjectEncoding(c->argv[2]); redisAssertWithInfo(c,c->argv[0],1 == 2); } else if (!strcasecmp(c->argv[1]->ptr,"reload")) { if (rdbSave(server.rdb_filename) != REDIS_OK) { addReply(c,shared.err); return; } emptyDb(); if (rdbLoad(server.rdb_filename) != REDIS_OK) { addReplyError(c,"Error trying to load the RDB dump"); return; } redisLog(REDIS_WARNING,"DB reloaded by DEBUG RELOAD"); addReply(c,shared.ok); } else if (!strcasecmp(c->argv[1]->ptr,"loadaof")) { emptyDb(); if (loadAppendOnlyFile(server.aof_filename) != REDIS_OK) { addReply(c,shared.err); return; } server.dirty = 0; /* Prevent AOF / replication */ redisLog(REDIS_WARNING,"Append Only File loaded by DEBUG LOADAOF"); addReply(c,shared.ok); } else if (!strcasecmp(c->argv[1]->ptr,"object") && c->argc == 3) { dictEntry *de; robj *val; char *strenc; if ((de = dictFind(c->db->dict,c->argv[2]->ptr)) == NULL) { addReply(c,shared.nokeyerr); return; } val = dictGetVal(de); strenc = strEncoding(val->encoding); addReplyStatusFormat(c, "Value at:%p refcount:%d " "encoding:%s serializedlength:%lld " "lru:%d lru_seconds_idle:%lu", (void*)val, val->refcount, strenc, (long long) rdbSavedObjectLen(val), val->lru, estimateObjectIdleTime(val)); } else if (!strcasecmp(c->argv[1]->ptr,"sdslen") && c->argc == 3) { dictEntry *de; robj *val; sds key; if ((de = dictFind(c->db->dict,c->argv[2]->ptr)) == NULL) { addReply(c,shared.nokeyerr); return; } val = dictGetVal(de); key = dictGetKey(de); if (val->type != REDIS_STRING || val->encoding != REDIS_ENCODING_RAW) { addReplyError(c,"Not an sds encoded string."); } else { addReplyStatusFormat(c, "key_sds_len:%lld, key_sds_avail:%lld, " "val_sds_len:%lld, val_sds_avail:%lld", (long long) sdslen(key), (long long) sdsavail(key), (long long) sdslen(val->ptr), (long long) sdsavail(val->ptr)); } } else if (!strcasecmp(c->argv[1]->ptr,"populate") && c->argc == 3) { long keys, j; robj *key, *val; char buf[128]; if (getLongFromObjectOrReply(c, c->argv[2], &keys, NULL) != REDIS_OK) return; for (j = 0; j < keys; j++) { snprintf(buf,sizeof(buf),"key:%lu",j); key = createStringObject(buf,strlen(buf)); if (lookupKeyRead(c->db,key) != NULL) { decrRefCount(key); continue; } snprintf(buf,sizeof(buf),"value:%lu",j); val = createStringObject(buf,strlen(buf)); dbAdd(c->db,key,val); decrRefCount(key); } addReply(c,shared.ok); } else if (!strcasecmp(c->argv[1]->ptr,"digest") && c->argc == 2) { unsigned char digest[20]; sds d = sdsempty(); int j; computeDatasetDigest(digest); for (j = 0; j < 20; j++) d = sdscatprintf(d, "%02x",digest[j]); addReplyStatus(c,d); sdsfree(d); } else if (!strcasecmp(c->argv[1]->ptr,"sleep") && c->argc == 3) { double dtime = strtod(c->argv[2]->ptr,NULL); long long utime = dtime*1000000; usleep(utime); addReply(c,shared.ok); } else if (!strcasecmp(c->argv[1]->ptr,"set-active-expire") && c->argc == 3) { server.active_expire_enabled = atoi(c->argv[2]->ptr); addReply(c,shared.ok); } else { addReplyErrorFormat(c, "Unknown DEBUG subcommand or wrong number of arguments for '%s'", (char*)c->argv[1]->ptr); } } /* =========================== Crash handling ============================== */ void _redisAssert(char *estr, char *file, int line) { bugReportStart(); redisLog(REDIS_WARNING,"=== ASSERTION FAILED ==="); redisLog(REDIS_WARNING,"==> %s:%d '%s' is not true",file,line,estr); #ifdef HAVE_BACKTRACE server.assert_failed = estr; server.assert_file = file; server.assert_line = line; redisLog(REDIS_WARNING,"(forcing SIGSEGV to print the bug report.)"); #endif *((char*)-1) = 'x'; } void _redisAssertPrintClientInfo(redisClient *c) { int j; bugReportStart(); redisLog(REDIS_WARNING,"=== ASSERTION FAILED CLIENT CONTEXT ==="); redisLog(REDIS_WARNING,"client->flags = %d", c->flags); redisLog(REDIS_WARNING,"client->fd = %d", c->fd); redisLog(REDIS_WARNING,"client->argc = %d", c->argc); for (j=0; j < c->argc; j++) { char buf[128]; char *arg; if (c->argv[j]->type == REDIS_STRING && c->argv[j]->encoding == REDIS_ENCODING_RAW) { arg = (char*) c->argv[j]->ptr; } else { snprintf(buf,sizeof(buf),"Object type: %d, encoding: %d", c->argv[j]->type, c->argv[j]->encoding); arg = buf; } redisLog(REDIS_WARNING,"client->argv[%d] = \"%s\" (refcount: %d)", j, arg, c->argv[j]->refcount); } } void redisLogObjectDebugInfo(robj *o) { redisLog(REDIS_WARNING,"Object type: %d", o->type); redisLog(REDIS_WARNING,"Object encoding: %d", o->encoding); redisLog(REDIS_WARNING,"Object refcount: %d", o->refcount); if (o->type == REDIS_STRING && o->encoding == REDIS_ENCODING_RAW) { redisLog(REDIS_WARNING,"Object raw string len: %zu", sdslen(o->ptr)); if (sdslen(o->ptr) < 4096) { sds repr = sdscatrepr(sdsempty(),o->ptr,sdslen(o->ptr)); redisLog(REDIS_WARNING,"Object raw string content: %s", repr); sdsfree(repr); } } else if (o->type == REDIS_LIST) { redisLog(REDIS_WARNING,"List length: %d", (int) listTypeLength(o)); } else if (o->type == REDIS_SET) { redisLog(REDIS_WARNING,"Set size: %d", (int) setTypeSize(o)); } else if (o->type == REDIS_HASH) { redisLog(REDIS_WARNING,"Hash size: %d", (int) hashTypeLength(o)); } else if (o->type == REDIS_ZSET) { redisLog(REDIS_WARNING,"Sorted set size: %d", (int) zsetLength(o)); if (o->encoding == REDIS_ENCODING_SKIPLIST) redisLog(REDIS_WARNING,"Skiplist level: %d", (int) ((zset*)o->ptr)->zsl->level); } } void _redisAssertPrintObject(robj *o) { bugReportStart(); redisLog(REDIS_WARNING,"=== ASSERTION FAILED OBJECT CONTEXT ==="); redisLogObjectDebugInfo(o); } void _redisAssertWithInfo(redisClient *c, robj *o, char *estr, char *file, int line) { if (c) _redisAssertPrintClientInfo(c); if (o) _redisAssertPrintObject(o); _redisAssert(estr,file,line); } void _redisPanic(char *msg, char *file, int line) { bugReportStart(); redisLog(REDIS_WARNING,"------------------------------------------------"); redisLog(REDIS_WARNING,"!!! Software Failure. Press left mouse button to continue"); redisLog(REDIS_WARNING,"Guru Meditation: %s #%s:%d",msg,file,line); #ifdef HAVE_BACKTRACE redisLog(REDIS_WARNING,"(forcing SIGSEGV in order to print the stack trace)"); #endif redisLog(REDIS_WARNING,"------------------------------------------------"); *((char*)-1) = 'x'; } void bugReportStart(void) { if (server.bug_report_start == 0) { redisLog(REDIS_WARNING, "\n\n=== REDIS BUG REPORT START: Cut & paste starting from here ==="); server.bug_report_start = 1; } } #ifdef HAVE_BACKTRACE static void *getMcontextEip(ucontext_t *uc) { #if defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6) /* OSX < 10.6 */ #if defined(__x86_64__) return (void*) uc->uc_mcontext->__ss.__rip; #elif defined(__i386__) return (void*) uc->uc_mcontext->__ss.__eip; #else return (void*) uc->uc_mcontext->__ss.__srr0; #endif #elif defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_6) /* OSX >= 10.6 */ #if defined(_STRUCT_X86_THREAD_STATE64) && !defined(__i386__) return (void*) uc->uc_mcontext->__ss.__rip; #else return (void*) uc->uc_mcontext->__ss.__eip; #endif #elif defined(__linux__) /* Linux */ #if defined(__i386__) return (void*) uc->uc_mcontext.gregs[14]; /* Linux 32 */ #elif defined(__X86_64__) || defined(__x86_64__) return (void*) uc->uc_mcontext.gregs[16]; /* Linux 64 */ #elif defined(__ia64__) /* Linux IA64 */ return (void*) uc->uc_mcontext.sc_ip; #endif #else return NULL; #endif } void logStackContent(void **sp) { int i; for (i = 15; i >= 0; i--) { if (sizeof(long) == 4) redisLog(REDIS_WARNING, "(%08lx) -> %08lx", sp+i, sp[i]); else redisLog(REDIS_WARNING, "(%016lx) -> %016lx", sp+i, sp[i]); } } void logRegisters(ucontext_t *uc) { redisLog(REDIS_WARNING, "--- REGISTERS"); /* OSX */ #if defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_6) /* OSX AMD64 */ #if defined(_STRUCT_X86_THREAD_STATE64) && !defined(__i386__) redisLog(REDIS_WARNING, "\n" "RAX:%016lx RBX:%016lx\nRCX:%016lx RDX:%016lx\n" "RDI:%016lx RSI:%016lx\nRBP:%016lx RSP:%016lx\n" "R8 :%016lx R9 :%016lx\nR10:%016lx R11:%016lx\n" "R12:%016lx R13:%016lx\nR14:%016lx R15:%016lx\n" "RIP:%016lx EFL:%016lx\nCS :%016lx FS:%016lx GS:%016lx", uc->uc_mcontext->__ss.__rax, uc->uc_mcontext->__ss.__rbx, uc->uc_mcontext->__ss.__rcx, uc->uc_mcontext->__ss.__rdx, uc->uc_mcontext->__ss.__rdi, uc->uc_mcontext->__ss.__rsi, uc->uc_mcontext->__ss.__rbp, uc->uc_mcontext->__ss.__rsp, uc->uc_mcontext->__ss.__r8, uc->uc_mcontext->__ss.__r9, uc->uc_mcontext->__ss.__r10, uc->uc_mcontext->__ss.__r11, uc->uc_mcontext->__ss.__r12, uc->uc_mcontext->__ss.__r13, uc->uc_mcontext->__ss.__r14, uc->uc_mcontext->__ss.__r15, uc->uc_mcontext->__ss.__rip, uc->uc_mcontext->__ss.__rflags, uc->uc_mcontext->__ss.__cs, uc->uc_mcontext->__ss.__fs, uc->uc_mcontext->__ss.__gs ); logStackContent((void**)uc->uc_mcontext->__ss.__rsp); #else /* OSX x86 */ redisLog(REDIS_WARNING, "\n" "EAX:%08lx EBX:%08lx ECX:%08lx EDX:%08lx\n" "EDI:%08lx ESI:%08lx EBP:%08lx ESP:%08lx\n" "SS:%08lx EFL:%08lx EIP:%08lx CS :%08lx\n" "DS:%08lx ES:%08lx FS :%08lx GS :%08lx", uc->uc_mcontext->__ss.__eax, uc->uc_mcontext->__ss.__ebx, uc->uc_mcontext->__ss.__ecx, uc->uc_mcontext->__ss.__edx, uc->uc_mcontext->__ss.__edi, uc->uc_mcontext->__ss.__esi, uc->uc_mcontext->__ss.__ebp, uc->uc_mcontext->__ss.__esp, uc->uc_mcontext->__ss.__ss, uc->uc_mcontext->__ss.__eflags, uc->uc_mcontext->__ss.__eip, uc->uc_mcontext->__ss.__cs, uc->uc_mcontext->__ss.__ds, uc->uc_mcontext->__ss.__es, uc->uc_mcontext->__ss.__fs, uc->uc_mcontext->__ss.__gs ); logStackContent((void**)uc->uc_mcontext->__ss.__esp); #endif /* Linux */ #elif defined(__linux__) /* Linux x86 */ #if defined(__i386__) redisLog(REDIS_WARNING, "\n" "EAX:%08lx EBX:%08lx ECX:%08lx EDX:%08lx\n" "EDI:%08lx ESI:%08lx EBP:%08lx ESP:%08lx\n" "SS :%08lx EFL:%08lx EIP:%08lx CS:%08lx\n" "DS :%08lx ES :%08lx FS :%08lx GS:%08lx", uc->uc_mcontext.gregs[11], uc->uc_mcontext.gregs[8], uc->uc_mcontext.gregs[10], uc->uc_mcontext.gregs[9], uc->uc_mcontext.gregs[4], uc->uc_mcontext.gregs[5], uc->uc_mcontext.gregs[6], uc->uc_mcontext.gregs[7], uc->uc_mcontext.gregs[18], uc->uc_mcontext.gregs[17], uc->uc_mcontext.gregs[14], uc->uc_mcontext.gregs[15], uc->uc_mcontext.gregs[3], uc->uc_mcontext.gregs[2], uc->uc_mcontext.gregs[1], uc->uc_mcontext.gregs[0] ); logStackContent((void**)uc->uc_mcontext.gregs[7]); #elif defined(__X86_64__) || defined(__x86_64__) /* Linux AMD64 */ redisLog(REDIS_WARNING, "\n" "RAX:%016lx RBX:%016lx\nRCX:%016lx RDX:%016lx\n" "RDI:%016lx RSI:%016lx\nRBP:%016lx RSP:%016lx\n" "R8 :%016lx R9 :%016lx\nR10:%016lx R11:%016lx\n" "R12:%016lx R13:%016lx\nR14:%016lx R15:%016lx\n" "RIP:%016lx EFL:%016lx\nCSGSFS:%016lx", uc->uc_mcontext.gregs[13], uc->uc_mcontext.gregs[11], uc->uc_mcontext.gregs[14], uc->uc_mcontext.gregs[12], uc->uc_mcontext.gregs[8], uc->uc_mcontext.gregs[9], uc->uc_mcontext.gregs[10], uc->uc_mcontext.gregs[15], uc->uc_mcontext.gregs[0], uc->uc_mcontext.gregs[1], uc->uc_mcontext.gregs[2], uc->uc_mcontext.gregs[3], uc->uc_mcontext.gregs[4], uc->uc_mcontext.gregs[5], uc->uc_mcontext.gregs[6], uc->uc_mcontext.gregs[7], uc->uc_mcontext.gregs[16], uc->uc_mcontext.gregs[17], uc->uc_mcontext.gregs[18] ); logStackContent((void**)uc->uc_mcontext.gregs[15]); #endif #else redisLog(REDIS_WARNING, " Dumping of registers not supported for this OS/arch"); #endif } /* Logs the stack trace using the backtrace() call. This function is designed * to be called from signal handlers safely. */ void logStackTrace(ucontext_t *uc) { void *trace[100]; int trace_size = 0, fd; /* Open the log file in append mode. */ fd = server.logfile ? open(server.logfile, O_APPEND|O_CREAT|O_WRONLY, 0644) : STDOUT_FILENO; if (fd == -1) return; /* Generate the stack trace */ trace_size = backtrace(trace, 100); /* overwrite sigaction with caller's address */ if (getMcontextEip(uc) != NULL) trace[1] = getMcontextEip(uc); /* Write symbols to log file */ backtrace_symbols_fd(trace, trace_size, fd); /* Cleanup */ if (server.logfile) close(fd); } /* Log information about the "current" client, that is, the client that is * currently being served by Redis. May be NULL if Redis is not serving a * client right now. */ void logCurrentClient(void) { if (server.current_client == NULL) return; redisClient *cc = server.current_client; sds client; int j; redisLog(REDIS_WARNING, "--- CURRENT CLIENT INFO"); client = getClientInfoString(cc); redisLog(REDIS_WARNING,"client: %s", client); sdsfree(client); for (j = 0; j < cc->argc; j++) { robj *decoded; decoded = getDecodedObject(cc->argv[j]); redisLog(REDIS_WARNING,"argv[%d]: '%s'", j, (char*)decoded->ptr); decrRefCount(decoded); } /* Check if the first argument, usually a key, is found inside the * selected DB, and if so print info about the associated object. */ if (cc->argc >= 1) { robj *val, *key; dictEntry *de; key = getDecodedObject(cc->argv[1]); de = dictFind(cc->db->dict, key->ptr); if (de) { val = dictGetVal(de); redisLog(REDIS_WARNING,"key '%s' found in DB containing the following object:", key->ptr); redisLogObjectDebugInfo(val); } decrRefCount(key); } } void sigsegvHandler(int sig, siginfo_t *info, void *secret) { ucontext_t *uc = (ucontext_t*) secret; sds infostring, clients; struct sigaction act; REDIS_NOTUSED(info); bugReportStart(); redisLog(REDIS_WARNING, " Redis %s crashed by signal: %d", REDIS_VERSION, sig); redisLog(REDIS_WARNING, " Failed assertion: %s (%s:%d)", server.assert_failed, server.assert_file, server.assert_line); /* Log the stack trace */ redisLog(REDIS_WARNING, "--- STACK TRACE"); logStackTrace(uc); /* Log INFO and CLIENT LIST */ redisLog(REDIS_WARNING, "--- INFO OUTPUT"); infostring = genRedisInfoString("all"); infostring = sdscatprintf(infostring, "hash_init_value: %u\n", dictGetHashFunctionSeed()); redisLogRaw(REDIS_WARNING, infostring); redisLog(REDIS_WARNING, "--- CLIENT LIST OUTPUT"); clients = getAllClientsInfoString(); redisLogRaw(REDIS_WARNING, clients); sdsfree(infostring); sdsfree(clients); /* Log the current client */ logCurrentClient(); /* Log dump of processor registers */ logRegisters(uc); redisLog(REDIS_WARNING, "\n=== REDIS BUG REPORT END. Make sure to include from START to END. ===\n\n" " Please report the crash opening an issue on github:\n\n" " http://github.com/antirez/redis/issues\n\n" " Suspect RAM error? Use redis-server --test-memory to veryfy it.\n\n" ); /* free(messages); Don't call free() with possibly corrupted memory. */ if (server.daemonize) unlink(server.pidfile); /* Make sure we exit with the right signal at the end. So for instance * the core will be dumped if enabled. */ sigemptyset (&act.sa_mask); act.sa_flags = SA_NODEFER | SA_ONSTACK | SA_RESETHAND; act.sa_handler = SIG_DFL; sigaction (sig, &act, NULL); kill(getpid(),sig); } #endif /* HAVE_BACKTRACE */ /* ==================== Logging functions for debugging ===================== */ void redisLogHexDump(int level, char *descr, void *value, size_t len) { char buf[65], *b; unsigned char *v = value; char charset[] = "0123456789abcdef"; redisLog(level,"%s (hexdump):", descr); b = buf; while(len) { b[0] = charset[(*v)>>4]; b[1] = charset[(*v)&0xf]; b[2] = '\0'; b += 2; len--; v++; if (b-buf == 64 || len == 0) { redisLogRaw(level|REDIS_LOG_RAW,buf); b = buf; } } redisLogRaw(level|REDIS_LOG_RAW,"\n"); } /* =========================== Software Watchdog ============================ */ #include void watchdogSignalHandler(int sig, siginfo_t *info, void *secret) { #ifdef HAVE_BACKTRACE ucontext_t *uc = (ucontext_t*) secret; #endif REDIS_NOTUSED(info); REDIS_NOTUSED(sig); redisLogFromHandler(REDIS_WARNING,"\n--- WATCHDOG TIMER EXPIRED ---"); #ifdef HAVE_BACKTRACE logStackTrace(uc); #else redisLogFromHandler(REDIS_WARNING,"Sorry: no support for backtrace()."); #endif redisLogFromHandler(REDIS_WARNING,"--------\n"); } /* Schedule a SIGALRM delivery after the specified period in milliseconds. * If a timer is already scheduled, this function will re-schedule it to the * specified time. If period is 0 the current timer is disabled. */ void watchdogScheduleSignal(int period) { struct itimerval it; /* Will stop the timer if period is 0. */ it.it_value.tv_sec = period/1000; it.it_value.tv_usec = (period%1000)*1000; /* Don't automatically restart. */ it.it_interval.tv_sec = 0; it.it_interval.tv_usec = 0; setitimer(ITIMER_REAL, &it, NULL); } /* Enable the software watchdong with the specified period in milliseconds. */ void enableWatchdog(int period) { int min_period; if (server.watchdog_period == 0) { struct sigaction act; /* Watchdog was actually disabled, so we have to setup the signal * handler. */ sigemptyset(&act.sa_mask); act.sa_flags = SA_NODEFER | SA_ONSTACK | SA_SIGINFO; act.sa_sigaction = watchdogSignalHandler; sigaction(SIGALRM, &act, NULL); } /* If the configured period is smaller than twice the timer period, it is * too short for the software watchdog to work reliably. Fix it now * if needed. */ min_period = (1000/server.hz)*2; if (period < min_period) period = min_period; watchdogScheduleSignal(period); /* Adjust the current timer. */ server.watchdog_period = period; } /* Disable the software watchdog. */ void disableWatchdog(void) { struct sigaction act; if (server.watchdog_period == 0) return; /* Already disabled. */ watchdogScheduleSignal(0); /* Stop the current timer. */ /* Set the signal handler to SIG_IGN, this will also remove pending * signals from the queue. */ sigemptyset(&act.sa_mask); act.sa_flags = 0; act.sa_handler = SIG_IGN; sigaction(SIGALRM, &act, NULL); server.watchdog_period = 0; } redis-2.6.16/src/dict.c000066400000000000000000000636451220734223100146040ustar00rootroot00000000000000/* Hash Tables Implementation. * * This file implements in memory hash tables with insert/del/replace/find/ * get-random-element operations. Hash tables will auto resize if needed * tables of power of two in size are used, collisions are handled by * chaining. See the source code for more information... :) * * Copyright (c) 2006-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "fmacros.h" #include #include #include #include #include #include #include #include "dict.h" #include "zmalloc.h" #include "redisassert.h" /* Using dictEnableResize() / dictDisableResize() we make possible to * enable/disable resizing of the hash table as needed. This is very important * for Redis, as we use copy-on-write and don't want to move too much memory * around when there is a child performing saving operations. * * Note that even when dict_can_resize is set to 0, not all resizes are * prevented: an hash table is still allowed to grow if the ratio between * the number of elements and the buckets > dict_force_resize_ratio. */ static int dict_can_resize = 1; static unsigned int dict_force_resize_ratio = 5; /* -------------------------- private prototypes ---------------------------- */ static int _dictExpandIfNeeded(dict *ht); static unsigned long _dictNextPower(unsigned long size); static int _dictKeyIndex(dict *ht, const void *key); static int _dictInit(dict *ht, dictType *type, void *privDataPtr); /* -------------------------- hash functions -------------------------------- */ /* Thomas Wang's 32 bit Mix Function */ unsigned int dictIntHashFunction(unsigned int key) { key += ~(key << 15); key ^= (key >> 10); key += (key << 3); key ^= (key >> 6); key += ~(key << 11); key ^= (key >> 16); return key; } /* Identity hash function for integer keys */ unsigned int dictIdentityHashFunction(unsigned int key) { return key; } static uint32_t dict_hash_function_seed = 5381; void dictSetHashFunctionSeed(uint32_t seed) { dict_hash_function_seed = seed; } uint32_t dictGetHashFunctionSeed(void) { return dict_hash_function_seed; } /* MurmurHash2, by Austin Appleby * Note - This code makes a few assumptions about how your machine behaves - * 1. We can read a 4-byte value from any address without crashing * 2. sizeof(int) == 4 * * And it has a few limitations - * * 1. It will not work incrementally. * 2. It will not produce the same results on little-endian and big-endian * machines. */ unsigned int dictGenHashFunction(const void *key, int len) { /* 'm' and 'r' are mixing constants generated offline. They're not really 'magic', they just happen to work well. */ uint32_t seed = dict_hash_function_seed; const uint32_t m = 0x5bd1e995; const int r = 24; /* Initialize the hash to a 'random' value */ uint32_t h = seed ^ len; /* Mix 4 bytes at a time into the hash */ const unsigned char *data = (const unsigned char *)key; while(len >= 4) { uint32_t k = *(uint32_t*)data; k *= m; k ^= k >> r; k *= m; h *= m; h ^= k; data += 4; len -= 4; } /* Handle the last few bytes of the input array */ switch(len) { case 3: h ^= data[2] << 16; case 2: h ^= data[1] << 8; case 1: h ^= data[0]; h *= m; }; /* Do a few final mixes of the hash to ensure the last few * bytes are well-incorporated. */ h ^= h >> 13; h *= m; h ^= h >> 15; return (unsigned int)h; } /* And a case insensitive hash function (based on djb hash) */ unsigned int dictGenCaseHashFunction(const unsigned char *buf, int len) { unsigned int hash = (unsigned int)dict_hash_function_seed; while (len--) hash = ((hash << 5) + hash) + (tolower(*buf++)); /* hash * 33 + c */ return hash; } /* ----------------------------- API implementation ------------------------- */ /* Reset a hash table already initialized with ht_init(). * NOTE: This function should only be called by ht_destroy(). */ static void _dictReset(dictht *ht) { ht->table = NULL; ht->size = 0; ht->sizemask = 0; ht->used = 0; } /* Create a new hash table */ dict *dictCreate(dictType *type, void *privDataPtr) { dict *d = zmalloc(sizeof(*d)); _dictInit(d,type,privDataPtr); return d; } /* Initialize the hash table */ int _dictInit(dict *d, dictType *type, void *privDataPtr) { _dictReset(&d->ht[0]); _dictReset(&d->ht[1]); d->type = type; d->privdata = privDataPtr; d->rehashidx = -1; d->iterators = 0; return DICT_OK; } /* Resize the table to the minimal size that contains all the elements, * but with the invariant of a USED/BUCKETS ratio near to <= 1 */ int dictResize(dict *d) { int minimal; if (!dict_can_resize || dictIsRehashing(d)) return DICT_ERR; minimal = d->ht[0].used; if (minimal < DICT_HT_INITIAL_SIZE) minimal = DICT_HT_INITIAL_SIZE; return dictExpand(d, minimal); } /* Expand or create the hash table */ int dictExpand(dict *d, unsigned long size) { dictht n; /* the new hash table */ unsigned long realsize = _dictNextPower(size); /* the size is invalid if it is smaller than the number of * elements already inside the hash table */ if (dictIsRehashing(d) || d->ht[0].used > size) return DICT_ERR; /* Allocate the new hash table and initialize all pointers to NULL */ n.size = realsize; n.sizemask = realsize-1; n.table = zcalloc(realsize*sizeof(dictEntry*)); n.used = 0; /* Is this the first initialization? If so it's not really a rehashing * we just set the first hash table so that it can accept keys. */ if (d->ht[0].table == NULL) { d->ht[0] = n; return DICT_OK; } /* Prepare a second hash table for incremental rehashing */ d->ht[1] = n; d->rehashidx = 0; return DICT_OK; } /* Performs N steps of incremental rehashing. Returns 1 if there are still * keys to move from the old to the new hash table, otherwise 0 is returned. * Note that a rehashing step consists in moving a bucket (that may have more * thank one key as we use chaining) from the old to the new hash table. */ int dictRehash(dict *d, int n) { if (!dictIsRehashing(d)) return 0; while(n--) { dictEntry *de, *nextde; /* Check if we already rehashed the whole table... */ if (d->ht[0].used == 0) { zfree(d->ht[0].table); d->ht[0] = d->ht[1]; _dictReset(&d->ht[1]); d->rehashidx = -1; return 0; } /* Note that rehashidx can't overflow as we are sure there are more * elements because ht[0].used != 0 */ assert(d->ht[0].size > (unsigned)d->rehashidx); while(d->ht[0].table[d->rehashidx] == NULL) d->rehashidx++; de = d->ht[0].table[d->rehashidx]; /* Move all the keys in this bucket from the old to the new hash HT */ while(de) { unsigned int h; nextde = de->next; /* Get the index in the new hash table */ h = dictHashKey(d, de->key) & d->ht[1].sizemask; de->next = d->ht[1].table[h]; d->ht[1].table[h] = de; d->ht[0].used--; d->ht[1].used++; de = nextde; } d->ht[0].table[d->rehashidx] = NULL; d->rehashidx++; } return 1; } long long timeInMilliseconds(void) { struct timeval tv; gettimeofday(&tv,NULL); return (((long long)tv.tv_sec)*1000)+(tv.tv_usec/1000); } /* Rehash for an amount of time between ms milliseconds and ms+1 milliseconds */ int dictRehashMilliseconds(dict *d, int ms) { long long start = timeInMilliseconds(); int rehashes = 0; while(dictRehash(d,100)) { rehashes += 100; if (timeInMilliseconds()-start > ms) break; } return rehashes; } /* This function performs just a step of rehashing, and only if there are * no safe iterators bound to our hash table. When we have iterators in the * middle of a rehashing we can't mess with the two hash tables otherwise * some element can be missed or duplicated. * * This function is called by common lookup or update operations in the * dictionary so that the hash table automatically migrates from H1 to H2 * while it is actively used. */ static void _dictRehashStep(dict *d) { if (d->iterators == 0) dictRehash(d,1); } /* Add an element to the target hash table */ int dictAdd(dict *d, void *key, void *val) { dictEntry *entry = dictAddRaw(d,key); if (!entry) return DICT_ERR; dictSetVal(d, entry, val); return DICT_OK; } /* Low level add. This function adds the entry but instead of setting * a value returns the dictEntry structure to the user, that will make * sure to fill the value field as he wishes. * * This function is also directly exposed to user API to be called * mainly in order to store non-pointers inside the hash value, example: * * entry = dictAddRaw(dict,mykey); * if (entry != NULL) dictSetSignedIntegerVal(entry,1000); * * Return values: * * If key already exists NULL is returned. * If key was added, the hash entry is returned to be manipulated by the caller. */ dictEntry *dictAddRaw(dict *d, void *key) { int index; dictEntry *entry; dictht *ht; if (dictIsRehashing(d)) _dictRehashStep(d); /* Get the index of the new element, or -1 if * the element already exists. */ if ((index = _dictKeyIndex(d, key)) == -1) return NULL; /* Allocate the memory and store the new entry */ ht = dictIsRehashing(d) ? &d->ht[1] : &d->ht[0]; entry = zmalloc(sizeof(*entry)); entry->next = ht->table[index]; ht->table[index] = entry; ht->used++; /* Set the hash entry fields. */ dictSetKey(d, entry, key); return entry; } /* Add an element, discarding the old if the key already exists. * Return 1 if the key was added from scratch, 0 if there was already an * element with such key and dictReplace() just performed a value update * operation. */ int dictReplace(dict *d, void *key, void *val) { dictEntry *entry, auxentry; /* Try to add the element. If the key * does not exists dictAdd will suceed. */ if (dictAdd(d, key, val) == DICT_OK) return 1; /* It already exists, get the entry */ entry = dictFind(d, key); /* Set the new value and free the old one. Note that it is important * to do that in this order, as the value may just be exactly the same * as the previous one. In this context, think to reference counting, * you want to increment (set), and then decrement (free), and not the * reverse. */ auxentry = *entry; dictSetVal(d, entry, val); dictFreeVal(d, &auxentry); return 0; } /* dictReplaceRaw() is simply a version of dictAddRaw() that always * returns the hash entry of the specified key, even if the key already * exists and can't be added (in that case the entry of the already * existing key is returned.) * * See dictAddRaw() for more information. */ dictEntry *dictReplaceRaw(dict *d, void *key) { dictEntry *entry = dictFind(d,key); return entry ? entry : dictAddRaw(d,key); } /* Search and remove an element */ static int dictGenericDelete(dict *d, const void *key, int nofree) { unsigned int h, idx; dictEntry *he, *prevHe; int table; if (d->ht[0].size == 0) return DICT_ERR; /* d->ht[0].table is NULL */ if (dictIsRehashing(d)) _dictRehashStep(d); h = dictHashKey(d, key); for (table = 0; table <= 1; table++) { idx = h & d->ht[table].sizemask; he = d->ht[table].table[idx]; prevHe = NULL; while(he) { if (dictCompareKeys(d, key, he->key)) { /* Unlink the element from the list */ if (prevHe) prevHe->next = he->next; else d->ht[table].table[idx] = he->next; if (!nofree) { dictFreeKey(d, he); dictFreeVal(d, he); } zfree(he); d->ht[table].used--; return DICT_OK; } prevHe = he; he = he->next; } if (!dictIsRehashing(d)) break; } return DICT_ERR; /* not found */ } int dictDelete(dict *ht, const void *key) { return dictGenericDelete(ht,key,0); } int dictDeleteNoFree(dict *ht, const void *key) { return dictGenericDelete(ht,key,1); } /* Destroy an entire dictionary */ int _dictClear(dict *d, dictht *ht) { unsigned long i; /* Free all the elements */ for (i = 0; i < ht->size && ht->used > 0; i++) { dictEntry *he, *nextHe; if ((he = ht->table[i]) == NULL) continue; while(he) { nextHe = he->next; dictFreeKey(d, he); dictFreeVal(d, he); zfree(he); ht->used--; he = nextHe; } } /* Free the table and the allocated cache structure */ zfree(ht->table); /* Re-initialize the table */ _dictReset(ht); return DICT_OK; /* never fails */ } /* Clear & Release the hash table */ void dictRelease(dict *d) { _dictClear(d,&d->ht[0]); _dictClear(d,&d->ht[1]); zfree(d); } dictEntry *dictFind(dict *d, const void *key) { dictEntry *he; unsigned int h, idx, table; if (d->ht[0].size == 0) return NULL; /* We don't have a table at all */ if (dictIsRehashing(d)) _dictRehashStep(d); h = dictHashKey(d, key); for (table = 0; table <= 1; table++) { idx = h & d->ht[table].sizemask; he = d->ht[table].table[idx]; while(he) { if (dictCompareKeys(d, key, he->key)) return he; he = he->next; } if (!dictIsRehashing(d)) return NULL; } return NULL; } void *dictFetchValue(dict *d, const void *key) { dictEntry *he; he = dictFind(d,key); return he ? dictGetVal(he) : NULL; } /* A fingerprint is a 64 bit number that represents the state of the dictionary * at a given time, it's just a few dict properties xored together. * When an unsafe iterator is initialized, we get the dict fingerprint, and check * the fingerprint again when the iterator is released. * If the two fingerprints are different it means that the user of the iterator * performed forbidden operations against the dictionary while iterating. */ long long dictFingerprint(dict *d) { long long integers[6], hash = 0; int j; integers[0] = (long) d->ht[0].table; integers[1] = d->ht[0].size; integers[2] = d->ht[0].used; integers[3] = (long) d->ht[1].table; integers[4] = d->ht[1].size; integers[5] = d->ht[1].used; /* We hash N integers by summing every successive integer with the integer * hashing of the previous sum. Basically: * * Result = hash(hash(hash(int1)+int2)+int3) ... * * This way the same set of integers in a different order will (likely) hash * to a different number. */ for (j = 0; j < 6; j++) { hash += integers[j]; /* For the hashing step we use Tomas Wang's 64 bit integer hash. */ hash = (~hash) + (hash << 21); // hash = (hash << 21) - hash - 1; hash = hash ^ (hash >> 24); hash = (hash + (hash << 3)) + (hash << 8); // hash * 265 hash = hash ^ (hash >> 14); hash = (hash + (hash << 2)) + (hash << 4); // hash * 21 hash = hash ^ (hash >> 28); hash = hash + (hash << 31); } return hash; } dictIterator *dictGetIterator(dict *d) { dictIterator *iter = zmalloc(sizeof(*iter)); iter->d = d; iter->table = 0; iter->index = -1; iter->safe = 0; iter->entry = NULL; iter->nextEntry = NULL; return iter; } dictIterator *dictGetSafeIterator(dict *d) { dictIterator *i = dictGetIterator(d); i->safe = 1; return i; } dictEntry *dictNext(dictIterator *iter) { while (1) { if (iter->entry == NULL) { dictht *ht = &iter->d->ht[iter->table]; if (iter->index == -1 && iter->table == 0) { if (iter->safe) iter->d->iterators++; else iter->fingerprint = dictFingerprint(iter->d); } iter->index++; if (iter->index >= (signed) ht->size) { if (dictIsRehashing(iter->d) && iter->table == 0) { iter->table++; iter->index = 0; ht = &iter->d->ht[1]; } else { break; } } iter->entry = ht->table[iter->index]; } else { iter->entry = iter->nextEntry; } if (iter->entry) { /* We need to save the 'next' here, the iterator user * may delete the entry we are returning. */ iter->nextEntry = iter->entry->next; return iter->entry; } } return NULL; } void dictReleaseIterator(dictIterator *iter) { if (!(iter->index == -1 && iter->table == 0)) { if (iter->safe) iter->d->iterators--; else assert(iter->fingerprint == dictFingerprint(iter->d)); } zfree(iter); } /* Return a random entry from the hash table. Useful to * implement randomized algorithms */ dictEntry *dictGetRandomKey(dict *d) { dictEntry *he, *orighe; unsigned int h; int listlen, listele; if (dictSize(d) == 0) return NULL; if (dictIsRehashing(d)) _dictRehashStep(d); if (dictIsRehashing(d)) { do { h = random() % (d->ht[0].size+d->ht[1].size); he = (h >= d->ht[0].size) ? d->ht[1].table[h - d->ht[0].size] : d->ht[0].table[h]; } while(he == NULL); } else { do { h = random() & d->ht[0].sizemask; he = d->ht[0].table[h]; } while(he == NULL); } /* Now we found a non empty bucket, but it is a linked * list and we need to get a random element from the list. * The only sane way to do so is counting the elements and * select a random index. */ listlen = 0; orighe = he; while(he) { he = he->next; listlen++; } listele = random() % listlen; he = orighe; while(listele--) he = he->next; return he; } /* ------------------------- private functions ------------------------------ */ /* Expand the hash table if needed */ static int _dictExpandIfNeeded(dict *d) { /* Incremental rehashing already in progress. Return. */ if (dictIsRehashing(d)) return DICT_OK; /* If the hash table is empty expand it to the initial size. */ if (d->ht[0].size == 0) return dictExpand(d, DICT_HT_INITIAL_SIZE); /* If we reached the 1:1 ratio, and we are allowed to resize the hash * table (global setting) or we should avoid it but the ratio between * elements/buckets is over the "safe" threshold, we resize doubling * the number of buckets. */ if (d->ht[0].used >= d->ht[0].size && (dict_can_resize || d->ht[0].used/d->ht[0].size > dict_force_resize_ratio)) { return dictExpand(d, ((d->ht[0].size > d->ht[0].used) ? d->ht[0].size : d->ht[0].used)*2); } return DICT_OK; } /* Our hash table capability is a power of two */ static unsigned long _dictNextPower(unsigned long size) { unsigned long i = DICT_HT_INITIAL_SIZE; if (size >= LONG_MAX) return LONG_MAX; while(1) { if (i >= size) return i; i *= 2; } } /* Returns the index of a free slot that can be populated with * an hash entry for the given 'key'. * If the key already exists, -1 is returned. * * Note that if we are in the process of rehashing the hash table, the * index is always returned in the context of the second (new) hash table. */ static int _dictKeyIndex(dict *d, const void *key) { unsigned int h, idx, table; dictEntry *he; /* Expand the hash table if needed */ if (_dictExpandIfNeeded(d) == DICT_ERR) return -1; /* Compute the key hash value */ h = dictHashKey(d, key); for (table = 0; table <= 1; table++) { idx = h & d->ht[table].sizemask; /* Search if this slot does not already contain the given key */ he = d->ht[table].table[idx]; while(he) { if (dictCompareKeys(d, key, he->key)) return -1; he = he->next; } if (!dictIsRehashing(d)) break; } return idx; } void dictEmpty(dict *d) { _dictClear(d,&d->ht[0]); _dictClear(d,&d->ht[1]); d->rehashidx = -1; d->iterators = 0; } void dictEnableResize(void) { dict_can_resize = 1; } void dictDisableResize(void) { dict_can_resize = 0; } #if 0 /* The following is code that we don't use for Redis currently, but that is part of the library. */ /* ----------------------- Debugging ------------------------*/ #define DICT_STATS_VECTLEN 50 static void _dictPrintStatsHt(dictht *ht) { unsigned long i, slots = 0, chainlen, maxchainlen = 0; unsigned long totchainlen = 0; unsigned long clvector[DICT_STATS_VECTLEN]; if (ht->used == 0) { printf("No stats available for empty dictionaries\n"); return; } for (i = 0; i < DICT_STATS_VECTLEN; i++) clvector[i] = 0; for (i = 0; i < ht->size; i++) { dictEntry *he; if (ht->table[i] == NULL) { clvector[0]++; continue; } slots++; /* For each hash entry on this slot... */ chainlen = 0; he = ht->table[i]; while(he) { chainlen++; he = he->next; } clvector[(chainlen < DICT_STATS_VECTLEN) ? chainlen : (DICT_STATS_VECTLEN-1)]++; if (chainlen > maxchainlen) maxchainlen = chainlen; totchainlen += chainlen; } printf("Hash table stats:\n"); printf(" table size: %ld\n", ht->size); printf(" number of elements: %ld\n", ht->used); printf(" different slots: %ld\n", slots); printf(" max chain length: %ld\n", maxchainlen); printf(" avg chain length (counted): %.02f\n", (float)totchainlen/slots); printf(" avg chain length (computed): %.02f\n", (float)ht->used/slots); printf(" Chain length distribution:\n"); for (i = 0; i < DICT_STATS_VECTLEN-1; i++) { if (clvector[i] == 0) continue; printf(" %s%ld: %ld (%.02f%%)\n",(i == DICT_STATS_VECTLEN-1)?">= ":"", i, clvector[i], ((float)clvector[i]/ht->size)*100); } } void dictPrintStats(dict *d) { _dictPrintStatsHt(&d->ht[0]); if (dictIsRehashing(d)) { printf("-- Rehashing into ht[1]:\n"); _dictPrintStatsHt(&d->ht[1]); } } /* ----------------------- StringCopy Hash Table Type ------------------------*/ static unsigned int _dictStringCopyHTHashFunction(const void *key) { return dictGenHashFunction(key, strlen(key)); } static void *_dictStringDup(void *privdata, const void *key) { int len = strlen(key); char *copy = zmalloc(len+1); DICT_NOTUSED(privdata); memcpy(copy, key, len); copy[len] = '\0'; return copy; } static int _dictStringCopyHTKeyCompare(void *privdata, const void *key1, const void *key2) { DICT_NOTUSED(privdata); return strcmp(key1, key2) == 0; } static void _dictStringDestructor(void *privdata, void *key) { DICT_NOTUSED(privdata); zfree(key); } dictType dictTypeHeapStringCopyKey = { _dictStringCopyHTHashFunction, /* hash function */ _dictStringDup, /* key dup */ NULL, /* val dup */ _dictStringCopyHTKeyCompare, /* key compare */ _dictStringDestructor, /* key destructor */ NULL /* val destructor */ }; /* This is like StringCopy but does not auto-duplicate the key. * It's used for intepreter's shared strings. */ dictType dictTypeHeapStrings = { _dictStringCopyHTHashFunction, /* hash function */ NULL, /* key dup */ NULL, /* val dup */ _dictStringCopyHTKeyCompare, /* key compare */ _dictStringDestructor, /* key destructor */ NULL /* val destructor */ }; /* This is like StringCopy but also automatically handle dynamic * allocated C strings as values. */ dictType dictTypeHeapStringCopyKeyValue = { _dictStringCopyHTHashFunction, /* hash function */ _dictStringDup, /* key dup */ _dictStringDup, /* val dup */ _dictStringCopyHTKeyCompare, /* key compare */ _dictStringDestructor, /* key destructor */ _dictStringDestructor, /* val destructor */ }; #endif redis-2.6.16/src/dict.h000066400000000000000000000145551220734223100146050ustar00rootroot00000000000000/* Hash Tables Implementation. * * This file implements in-memory hash tables with insert/del/replace/find/ * get-random-element operations. Hash tables will auto-resize if needed * tables of power of two in size are used, collisions are handled by * chaining. See the source code for more information... :) * * Copyright (c) 2006-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #ifndef __DICT_H #define __DICT_H #define DICT_OK 0 #define DICT_ERR 1 /* Unused arguments generate annoying warnings... */ #define DICT_NOTUSED(V) ((void) V) typedef struct dictEntry { void *key; union { void *val; uint64_t u64; int64_t s64; } v; struct dictEntry *next; } dictEntry; typedef struct dictType { unsigned int (*hashFunction)(const void *key); void *(*keyDup)(void *privdata, const void *key); void *(*valDup)(void *privdata, const void *obj); int (*keyCompare)(void *privdata, const void *key1, const void *key2); void (*keyDestructor)(void *privdata, void *key); void (*valDestructor)(void *privdata, void *obj); } dictType; /* This is our hash table structure. Every dictionary has two of this as we * implement incremental rehashing, for the old to the new table. */ typedef struct dictht { dictEntry **table; unsigned long size; unsigned long sizemask; unsigned long used; } dictht; typedef struct dict { dictType *type; void *privdata; dictht ht[2]; int rehashidx; /* rehashing not in progress if rehashidx == -1 */ int iterators; /* number of iterators currently running */ } dict; /* If safe is set to 1 this is a safe iterator, that means, you can call * dictAdd, dictFind, and other functions against the dictionary even while * iterating. Otherwise it is a non safe iterator, and only dictNext() * should be called while iterating. */ typedef struct dictIterator { dict *d; int table, index, safe; dictEntry *entry, *nextEntry; long long fingerprint; /* unsafe iterator fingerprint for misuse detection */ } dictIterator; /* This is the initial size of every hash table */ #define DICT_HT_INITIAL_SIZE 4 /* ------------------------------- Macros ------------------------------------*/ #define dictFreeVal(d, entry) \ if ((d)->type->valDestructor) \ (d)->type->valDestructor((d)->privdata, (entry)->v.val) #define dictSetVal(d, entry, _val_) do { \ if ((d)->type->valDup) \ entry->v.val = (d)->type->valDup((d)->privdata, _val_); \ else \ entry->v.val = (_val_); \ } while(0) #define dictSetSignedIntegerVal(entry, _val_) \ do { entry->v.s64 = _val_; } while(0) #define dictSetUnsignedIntegerVal(entry, _val_) \ do { entry->v.u64 = _val_; } while(0) #define dictFreeKey(d, entry) \ if ((d)->type->keyDestructor) \ (d)->type->keyDestructor((d)->privdata, (entry)->key) #define dictSetKey(d, entry, _key_) do { \ if ((d)->type->keyDup) \ entry->key = (d)->type->keyDup((d)->privdata, _key_); \ else \ entry->key = (_key_); \ } while(0) #define dictCompareKeys(d, key1, key2) \ (((d)->type->keyCompare) ? \ (d)->type->keyCompare((d)->privdata, key1, key2) : \ (key1) == (key2)) #define dictHashKey(d, key) (d)->type->hashFunction(key) #define dictGetKey(he) ((he)->key) #define dictGetVal(he) ((he)->v.val) #define dictGetSignedIntegerVal(he) ((he)->v.s64) #define dictGetUnsignedIntegerVal(he) ((he)->v.u64) #define dictSlots(d) ((d)->ht[0].size+(d)->ht[1].size) #define dictSize(d) ((d)->ht[0].used+(d)->ht[1].used) #define dictIsRehashing(ht) ((ht)->rehashidx != -1) /* API */ dict *dictCreate(dictType *type, void *privDataPtr); int dictExpand(dict *d, unsigned long size); int dictAdd(dict *d, void *key, void *val); dictEntry *dictAddRaw(dict *d, void *key); int dictReplace(dict *d, void *key, void *val); dictEntry *dictReplaceRaw(dict *d, void *key); int dictDelete(dict *d, const void *key); int dictDeleteNoFree(dict *d, const void *key); void dictRelease(dict *d); dictEntry * dictFind(dict *d, const void *key); void *dictFetchValue(dict *d, const void *key); int dictResize(dict *d); dictIterator *dictGetIterator(dict *d); dictIterator *dictGetSafeIterator(dict *d); dictEntry *dictNext(dictIterator *iter); void dictReleaseIterator(dictIterator *iter); dictEntry *dictGetRandomKey(dict *d); void dictPrintStats(dict *d); unsigned int dictGenHashFunction(const void *key, int len); unsigned int dictGenCaseHashFunction(const unsigned char *buf, int len); void dictEmpty(dict *d); void dictEnableResize(void); void dictDisableResize(void); int dictRehash(dict *d, int n); int dictRehashMilliseconds(dict *d, int ms); void dictSetHashFunctionSeed(unsigned int initval); unsigned int dictGetHashFunctionSeed(void); /* Hash table types */ extern dictType dictTypeHeapStringCopyKey; extern dictType dictTypeHeapStrings; extern dictType dictTypeHeapStringCopyKeyValue; #endif /* __DICT_H */ redis-2.6.16/src/endianconv.c000066400000000000000000000071421220734223100157730ustar00rootroot00000000000000/* endinconv.c -- Endian conversions utilities. * * This functions are never called directly, but always using the macros * defined into endianconv.h, this way we define everything is a non-operation * if the arch is already little endian. * * Redis tries to encode everything as little endian (but a few things that need * to be backward compatible are still in big endian) because most of the * production environments are little endian, and we have a lot of conversions * in a few places because ziplists, intsets, zipmaps, need to be endian-neutral * even in memory, since they are serialied on RDB files directly with a single * write(2) without other additional steps. * * ---------------------------------------------------------------------------- * * Copyright (c) 2011-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include /* Toggle the 16 bit unsigned integer pointed by *p from little endian to * big endian */ void memrev16(void *p) { unsigned char *x = p, t; t = x[0]; x[0] = x[1]; x[1] = t; } /* Toggle the 32 bit unsigned integer pointed by *p from little endian to * big endian */ void memrev32(void *p) { unsigned char *x = p, t; t = x[0]; x[0] = x[3]; x[3] = t; t = x[1]; x[1] = x[2]; x[2] = t; } /* Toggle the 64 bit unsigned integer pointed by *p from little endian to * big endian */ void memrev64(void *p) { unsigned char *x = p, t; t = x[0]; x[0] = x[7]; x[7] = t; t = x[1]; x[1] = x[6]; x[6] = t; t = x[2]; x[2] = x[5]; x[5] = t; t = x[3]; x[3] = x[4]; x[4] = t; } uint16_t intrev16(uint16_t v) { memrev16(&v); return v; } uint32_t intrev32(uint32_t v) { memrev32(&v); return v; } uint64_t intrev64(uint64_t v) { memrev64(&v); return v; } #ifdef TESTMAIN #include int main(void) { char buf[32]; sprintf(buf,"ciaoroma"); memrev16(buf); printf("%s\n", buf); sprintf(buf,"ciaoroma"); memrev32(buf); printf("%s\n", buf); sprintf(buf,"ciaoroma"); memrev64(buf); printf("%s\n", buf); return 0; } #endif redis-2.6.16/src/endianconv.h000066400000000000000000000047421220734223100160030ustar00rootroot00000000000000/* See endianconv.c top comments for more information * * ---------------------------------------------------------------------------- * * Copyright (c) 2011-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __ENDIANCONV_H #define __ENDIANCONV_H #include "config.h" #include void memrev16(void *p); void memrev32(void *p); void memrev64(void *p); uint16_t intrev16(uint16_t v); uint32_t intrev32(uint32_t v); uint64_t intrev64(uint64_t v); /* variants of the function doing the actual convertion only if the target * host is big endian */ #if (BYTE_ORDER == LITTLE_ENDIAN) #define memrev16ifbe(p) #define memrev32ifbe(p) #define memrev64ifbe(p) #define intrev16ifbe(v) (v) #define intrev32ifbe(v) (v) #define intrev64ifbe(v) (v) #else #define memrev16ifbe(p) memrev16(p) #define memrev32ifbe(p) memrev32(p) #define memrev64ifbe(p) memrev64(p) #define intrev16ifbe(v) intrev16(v) #define intrev32ifbe(v) intrev32(v) #define intrev64ifbe(v) intrev64(v) #endif #endif redis-2.6.16/src/fmacros.h000066400000000000000000000036071220734223100153100ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _REDIS_FMACRO_H #define _REDIS_FMACRO_H #define _BSD_SOURCE #if defined(__linux__) #define _GNU_SOURCE #endif #if defined(__linux__) || defined(__OpenBSD__) || defined(__NetBSD__) #define _XOPEN_SOURCE 700 #else #define _XOPEN_SOURCE #endif #define _LARGEFILE_SOURCE #define _FILE_OFFSET_BITS 64 #endif redis-2.6.16/src/help.h000066400000000000000000000414761220734223100146140ustar00rootroot00000000000000/* Automatically generated by utils/generate-command-help.rb, do not edit. */ #ifndef __REDIS_HELP_H #define __REDIS_HELP_H static char *commandGroups[] = { "generic", "string", "list", "set", "sorted_set", "hash", "pubsub", "transactions", "connection", "server", "scripting" }; struct commandHelp { char *name; char *params; char *summary; int group; char *since; } commandHelp[] = { { "APPEND", "key value", "Append a value to a key", 1, "2.0.0" }, { "AUTH", "password", "Authenticate to the server", 8, "1.0.0" }, { "BGREWRITEAOF", "-", "Asynchronously rewrite the append-only file", 9, "1.0.0" }, { "BGSAVE", "-", "Asynchronously save the dataset to disk", 9, "1.0.0" }, { "BITCOUNT", "key [start] [end]", "Count set bits in a string", 1, "2.6.0" }, { "BITOP", "operation destkey key [key ...]", "Perform bitwise operations between strings", 1, "2.6.0" }, { "BLPOP", "key [key ...] timeout", "Remove and get the first element in a list, or block until one is available", 2, "2.0.0" }, { "BRPOP", "key [key ...] timeout", "Remove and get the last element in a list, or block until one is available", 2, "2.0.0" }, { "BRPOPLPUSH", "source destination timeout", "Pop a value from a list, push it to another list and return it; or block until one is available", 2, "2.2.0" }, { "CLIENT GETNAME", "-", "Get the current connection name", 9, "2.6.9" }, { "CLIENT KILL", "ip:port", "Kill the connection of a client", 9, "2.4.0" }, { "CLIENT LIST", "-", "Get the list of client connections", 9, "2.4.0" }, { "CLIENT SETNAME", "connection-name", "Set the current connection name", 9, "2.6.9" }, { "CONFIG GET", "parameter", "Get the value of a configuration parameter", 9, "2.0.0" }, { "CONFIG RESETSTAT", "-", "Reset the stats returned by INFO", 9, "2.0.0" }, { "CONFIG SET", "parameter value", "Set a configuration parameter to the given value", 9, "2.0.0" }, { "DBSIZE", "-", "Return the number of keys in the selected database", 9, "1.0.0" }, { "DEBUG OBJECT", "key", "Get debugging information about a key", 9, "1.0.0" }, { "DEBUG SEGFAULT", "-", "Make the server crash", 9, "1.0.0" }, { "DECR", "key", "Decrement the integer value of a key by one", 1, "1.0.0" }, { "DECRBY", "key decrement", "Decrement the integer value of a key by the given number", 1, "1.0.0" }, { "DEL", "key [key ...]", "Delete a key", 0, "1.0.0" }, { "DISCARD", "-", "Discard all commands issued after MULTI", 7, "2.0.0" }, { "DUMP", "key", "Return a serialized version of the value stored at the specified key.", 0, "2.6.0" }, { "ECHO", "message", "Echo the given string", 8, "1.0.0" }, { "EVAL", "script numkeys key [key ...] arg [arg ...]", "Execute a Lua script server side", 10, "2.6.0" }, { "EVALSHA", "sha1 numkeys key [key ...] arg [arg ...]", "Execute a Lua script server side", 10, "2.6.0" }, { "EXEC", "-", "Execute all commands issued after MULTI", 7, "1.2.0" }, { "EXISTS", "key", "Determine if a key exists", 0, "1.0.0" }, { "EXPIRE", "key seconds", "Set a key's time to live in seconds", 0, "1.0.0" }, { "EXPIREAT", "key timestamp", "Set the expiration for a key as a UNIX timestamp", 0, "1.2.0" }, { "FLUSHALL", "-", "Remove all keys from all databases", 9, "1.0.0" }, { "FLUSHDB", "-", "Remove all keys from the current database", 9, "1.0.0" }, { "GET", "key", "Get the value of a key", 1, "1.0.0" }, { "GETBIT", "key offset", "Returns the bit value at offset in the string value stored at key", 1, "2.2.0" }, { "GETRANGE", "key start end", "Get a substring of the string stored at a key", 1, "2.4.0" }, { "GETSET", "key value", "Set the string value of a key and return its old value", 1, "1.0.0" }, { "HDEL", "key field [field ...]", "Delete one or more hash fields", 5, "2.0.0" }, { "HEXISTS", "key field", "Determine if a hash field exists", 5, "2.0.0" }, { "HGET", "key field", "Get the value of a hash field", 5, "2.0.0" }, { "HGETALL", "key", "Get all the fields and values in a hash", 5, "2.0.0" }, { "HINCRBY", "key field increment", "Increment the integer value of a hash field by the given number", 5, "2.0.0" }, { "HINCRBYFLOAT", "key field increment", "Increment the float value of a hash field by the given amount", 5, "2.6.0" }, { "HKEYS", "key", "Get all the fields in a hash", 5, "2.0.0" }, { "HLEN", "key", "Get the number of fields in a hash", 5, "2.0.0" }, { "HMGET", "key field [field ...]", "Get the values of all the given hash fields", 5, "2.0.0" }, { "HMSET", "key field value [field value ...]", "Set multiple hash fields to multiple values", 5, "2.0.0" }, { "HSET", "key field value", "Set the string value of a hash field", 5, "2.0.0" }, { "HSETNX", "key field value", "Set the value of a hash field, only if the field does not exist", 5, "2.0.0" }, { "HVALS", "key", "Get all the values in a hash", 5, "2.0.0" }, { "INCR", "key", "Increment the integer value of a key by one", 1, "1.0.0" }, { "INCRBY", "key increment", "Increment the integer value of a key by the given amount", 1, "1.0.0" }, { "INCRBYFLOAT", "key increment", "Increment the float value of a key by the given amount", 1, "2.6.0" }, { "INFO", "[section]", "Get information and statistics about the server", 9, "1.0.0" }, { "KEYS", "pattern", "Find all keys matching the given pattern", 0, "1.0.0" }, { "LASTSAVE", "-", "Get the UNIX time stamp of the last successful save to disk", 9, "1.0.0" }, { "LINDEX", "key index", "Get an element from a list by its index", 2, "1.0.0" }, { "LINSERT", "key BEFORE|AFTER pivot value", "Insert an element before or after another element in a list", 2, "2.2.0" }, { "LLEN", "key", "Get the length of a list", 2, "1.0.0" }, { "LPOP", "key", "Remove and get the first element in a list", 2, "1.0.0" }, { "LPUSH", "key value [value ...]", "Prepend one or multiple values to a list", 2, "1.0.0" }, { "LPUSHX", "key value", "Prepend a value to a list, only if the list exists", 2, "2.2.0" }, { "LRANGE", "key start stop", "Get a range of elements from a list", 2, "1.0.0" }, { "LREM", "key count value", "Remove elements from a list", 2, "1.0.0" }, { "LSET", "key index value", "Set the value of an element in a list by its index", 2, "1.0.0" }, { "LTRIM", "key start stop", "Trim a list to the specified range", 2, "1.0.0" }, { "MGET", "key [key ...]", "Get the values of all the given keys", 1, "1.0.0" }, { "MIGRATE", "host port key destination-db timeout", "Atomically transfer a key from a Redis instance to another one.", 0, "2.6.0" }, { "MONITOR", "-", "Listen for all requests received by the server in real time", 9, "1.0.0" }, { "MOVE", "key db", "Move a key to another database", 0, "1.0.0" }, { "MSET", "key value [key value ...]", "Set multiple keys to multiple values", 1, "1.0.1" }, { "MSETNX", "key value [key value ...]", "Set multiple keys to multiple values, only if none of the keys exist", 1, "1.0.1" }, { "MULTI", "-", "Mark the start of a transaction block", 7, "1.2.0" }, { "OBJECT", "subcommand [arguments [arguments ...]]", "Inspect the internals of Redis objects", 0, "2.2.3" }, { "PERSIST", "key", "Remove the expiration from a key", 0, "2.2.0" }, { "PEXPIRE", "key milliseconds", "Set a key's time to live in milliseconds", 0, "2.6.0" }, { "PEXPIREAT", "key milliseconds-timestamp", "Set the expiration for a key as a UNIX timestamp specified in milliseconds", 0, "2.6.0" }, { "PING", "-", "Ping the server", 8, "1.0.0" }, { "PSETEX", "key milliseconds value", "Set the value and expiration in milliseconds of a key", 1, "2.6.0" }, { "PSUBSCRIBE", "pattern [pattern ...]", "Listen for messages published to channels matching the given patterns", 6, "2.0.0" }, { "PTTL", "key", "Get the time to live for a key in milliseconds", 0, "2.6.0" }, { "PUBLISH", "channel message", "Post a message to a channel", 6, "2.0.0" }, { "PUNSUBSCRIBE", "[pattern [pattern ...]]", "Stop listening for messages posted to channels matching the given patterns", 6, "2.0.0" }, { "QUIT", "-", "Close the connection", 8, "1.0.0" }, { "RANDOMKEY", "-", "Return a random key from the keyspace", 0, "1.0.0" }, { "RENAME", "key newkey", "Rename a key", 0, "1.0.0" }, { "RENAMENX", "key newkey", "Rename a key, only if the new key does not exist", 0, "1.0.0" }, { "RESTORE", "key ttl serialized-value", "Create a key using the provided serialized value, previously obtained using DUMP.", 0, "2.6.0" }, { "RPOP", "key", "Remove and get the last element in a list", 2, "1.0.0" }, { "RPOPLPUSH", "source destination", "Remove the last element in a list, append it to another list and return it", 2, "1.2.0" }, { "RPUSH", "key value [value ...]", "Append one or multiple values to a list", 2, "1.0.0" }, { "RPUSHX", "key value", "Append a value to a list, only if the list exists", 2, "2.2.0" }, { "SADD", "key member [member ...]", "Add one or more members to a set", 3, "1.0.0" }, { "SAVE", "-", "Synchronously save the dataset to disk", 9, "1.0.0" }, { "SCARD", "key", "Get the number of members in a set", 3, "1.0.0" }, { "SCRIPT EXISTS", "script [script ...]", "Check existence of scripts in the script cache.", 10, "2.6.0" }, { "SCRIPT FLUSH", "-", "Remove all the scripts from the script cache.", 10, "2.6.0" }, { "SCRIPT KILL", "-", "Kill the script currently in execution.", 10, "2.6.0" }, { "SCRIPT LOAD", "script", "Load the specified Lua script into the script cache.", 10, "2.6.0" }, { "SDIFF", "key [key ...]", "Subtract multiple sets", 3, "1.0.0" }, { "SDIFFSTORE", "destination key [key ...]", "Subtract multiple sets and store the resulting set in a key", 3, "1.0.0" }, { "SELECT", "index", "Change the selected database for the current connection", 8, "1.0.0" }, { "SET", "key value [EX seconds] [PX milliseconds] [NX|XX]", "Set the string value of a key", 1, "1.0.0" }, { "SETBIT", "key offset value", "Sets or clears the bit at offset in the string value stored at key", 1, "2.2.0" }, { "SETEX", "key seconds value", "Set the value and expiration of a key", 1, "2.0.0" }, { "SETNX", "key value", "Set the value of a key, only if the key does not exist", 1, "1.0.0" }, { "SETRANGE", "key offset value", "Overwrite part of a string at key starting at the specified offset", 1, "2.2.0" }, { "SHUTDOWN", "[NOSAVE] [SAVE]", "Synchronously save the dataset to disk and then shut down the server", 9, "1.0.0" }, { "SINTER", "key [key ...]", "Intersect multiple sets", 3, "1.0.0" }, { "SINTERSTORE", "destination key [key ...]", "Intersect multiple sets and store the resulting set in a key", 3, "1.0.0" }, { "SISMEMBER", "key member", "Determine if a given value is a member of a set", 3, "1.0.0" }, { "SLAVEOF", "host port", "Make the server a slave of another instance, or promote it as master", 9, "1.0.0" }, { "SLOWLOG", "subcommand [argument]", "Manages the Redis slow queries log", 9, "2.2.12" }, { "SMEMBERS", "key", "Get all the members in a set", 3, "1.0.0" }, { "SMOVE", "source destination member", "Move a member from one set to another", 3, "1.0.0" }, { "SORT", "key [BY pattern] [LIMIT offset count] [GET pattern [GET pattern ...]] [ASC|DESC] [ALPHA] [STORE destination]", "Sort the elements in a list, set or sorted set", 0, "1.0.0" }, { "SPOP", "key", "Remove and return a random member from a set", 3, "1.0.0" }, { "SRANDMEMBER", "key [count]", "Get one or multiple random members from a set", 3, "1.0.0" }, { "SREM", "key member [member ...]", "Remove one or more members from a set", 3, "1.0.0" }, { "STRLEN", "key", "Get the length of the value stored in a key", 1, "2.2.0" }, { "SUBSCRIBE", "channel [channel ...]", "Listen for messages published to the given channels", 6, "2.0.0" }, { "SUNION", "key [key ...]", "Add multiple sets", 3, "1.0.0" }, { "SUNIONSTORE", "destination key [key ...]", "Add multiple sets and store the resulting set in a key", 3, "1.0.0" }, { "SYNC", "-", "Internal command used for replication", 9, "1.0.0" }, { "TIME", "-", "Return the current server time", 9, "2.6.0" }, { "TTL", "key", "Get the time to live for a key", 0, "1.0.0" }, { "TYPE", "key", "Determine the type stored at key", 0, "1.0.0" }, { "UNSUBSCRIBE", "[channel [channel ...]]", "Stop listening for messages posted to the given channels", 6, "2.0.0" }, { "UNWATCH", "-", "Forget about all watched keys", 7, "2.2.0" }, { "WATCH", "key [key ...]", "Watch the given keys to determine execution of the MULTI/EXEC block", 7, "2.2.0" }, { "ZADD", "key score member [score member ...]", "Add one or more members to a sorted set, or update its score if it already exists", 4, "1.2.0" }, { "ZCARD", "key", "Get the number of members in a sorted set", 4, "1.2.0" }, { "ZCOUNT", "key min max", "Count the members in a sorted set with scores within the given values", 4, "2.0.0" }, { "ZINCRBY", "key increment member", "Increment the score of a member in a sorted set", 4, "1.2.0" }, { "ZINTERSTORE", "destination numkeys key [key ...] [WEIGHTS weight] [AGGREGATE SUM|MIN|MAX]", "Intersect multiple sorted sets and store the resulting sorted set in a new key", 4, "2.0.0" }, { "ZRANGE", "key start stop [WITHSCORES]", "Return a range of members in a sorted set, by index", 4, "1.2.0" }, { "ZRANGEBYSCORE", "key min max [WITHSCORES] [LIMIT offset count]", "Return a range of members in a sorted set, by score", 4, "1.0.5" }, { "ZRANK", "key member", "Determine the index of a member in a sorted set", 4, "2.0.0" }, { "ZREM", "key member [member ...]", "Remove one or more members from a sorted set", 4, "1.2.0" }, { "ZREMRANGEBYRANK", "key start stop", "Remove all members in a sorted set within the given indexes", 4, "2.0.0" }, { "ZREMRANGEBYSCORE", "key min max", "Remove all members in a sorted set within the given scores", 4, "1.2.0" }, { "ZREVRANGE", "key start stop [WITHSCORES]", "Return a range of members in a sorted set, by index, with scores ordered from high to low", 4, "1.2.0" }, { "ZREVRANGEBYSCORE", "key max min [WITHSCORES] [LIMIT offset count]", "Return a range of members in a sorted set, by score, with scores ordered from high to low", 4, "2.2.0" }, { "ZREVRANK", "key member", "Determine the index of a member in a sorted set, with scores ordered from high to low", 4, "2.0.0" }, { "ZSCORE", "key member", "Get the score associated with the given member in a sorted set", 4, "1.2.0" }, { "ZUNIONSTORE", "destination numkeys key [key ...] [WEIGHTS weight] [AGGREGATE SUM|MIN|MAX]", "Add multiple sorted sets and store the resulting sorted set in a new key", 4, "2.0.0" } }; #endif redis-2.6.16/src/intset.c000066400000000000000000000372161220734223100151620ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Pieter Noordhuis * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include "intset.h" #include "zmalloc.h" #include "endianconv.h" /* Note that these encodings are ordered, so: * INTSET_ENC_INT16 < INTSET_ENC_INT32 < INTSET_ENC_INT64. */ #define INTSET_ENC_INT16 (sizeof(int16_t)) #define INTSET_ENC_INT32 (sizeof(int32_t)) #define INTSET_ENC_INT64 (sizeof(int64_t)) /* Return the required encoding for the provided value. */ static uint8_t _intsetValueEncoding(int64_t v) { if (v < INT32_MIN || v > INT32_MAX) return INTSET_ENC_INT64; else if (v < INT16_MIN || v > INT16_MAX) return INTSET_ENC_INT32; else return INTSET_ENC_INT16; } /* Return the value at pos, given an encoding. */ static int64_t _intsetGetEncoded(intset *is, int pos, uint8_t enc) { int64_t v64; int32_t v32; int16_t v16; if (enc == INTSET_ENC_INT64) { memcpy(&v64,((int64_t*)is->contents)+pos,sizeof(v64)); memrev64ifbe(&v64); return v64; } else if (enc == INTSET_ENC_INT32) { memcpy(&v32,((int32_t*)is->contents)+pos,sizeof(v32)); memrev32ifbe(&v32); return v32; } else { memcpy(&v16,((int16_t*)is->contents)+pos,sizeof(v16)); memrev16ifbe(&v16); return v16; } } /* Return the value at pos, using the configured encoding. */ static int64_t _intsetGet(intset *is, int pos) { return _intsetGetEncoded(is,pos,intrev32ifbe(is->encoding)); } /* Set the value at pos, using the configured encoding. */ static void _intsetSet(intset *is, int pos, int64_t value) { uint32_t encoding = intrev32ifbe(is->encoding); if (encoding == INTSET_ENC_INT64) { ((int64_t*)is->contents)[pos] = value; memrev64ifbe(((int64_t*)is->contents)+pos); } else if (encoding == INTSET_ENC_INT32) { ((int32_t*)is->contents)[pos] = value; memrev32ifbe(((int32_t*)is->contents)+pos); } else { ((int16_t*)is->contents)[pos] = value; memrev16ifbe(((int16_t*)is->contents)+pos); } } /* Create an empty intset. */ intset *intsetNew(void) { intset *is = zmalloc(sizeof(intset)); is->encoding = intrev32ifbe(INTSET_ENC_INT16); is->length = 0; return is; } /* Resize the intset */ static intset *intsetResize(intset *is, uint32_t len) { uint32_t size = len*intrev32ifbe(is->encoding); is = zrealloc(is,sizeof(intset)+size); return is; } /* Search for the position of "value". Return 1 when the value was found and * sets "pos" to the position of the value within the intset. Return 0 when * the value is not present in the intset and sets "pos" to the position * where "value" can be inserted. */ static uint8_t intsetSearch(intset *is, int64_t value, uint32_t *pos) { int min = 0, max = intrev32ifbe(is->length)-1, mid = -1; int64_t cur = -1; /* The value can never be found when the set is empty */ if (intrev32ifbe(is->length) == 0) { if (pos) *pos = 0; return 0; } else { /* Check for the case where we know we cannot find the value, * but do know the insert position. */ if (value > _intsetGet(is,intrev32ifbe(is->length)-1)) { if (pos) *pos = intrev32ifbe(is->length); return 0; } else if (value < _intsetGet(is,0)) { if (pos) *pos = 0; return 0; } } while(max >= min) { mid = (min+max)/2; cur = _intsetGet(is,mid); if (value > cur) { min = mid+1; } else if (value < cur) { max = mid-1; } else { break; } } if (value == cur) { if (pos) *pos = mid; return 1; } else { if (pos) *pos = min; return 0; } } /* Upgrades the intset to a larger encoding and inserts the given integer. */ static intset *intsetUpgradeAndAdd(intset *is, int64_t value) { uint8_t curenc = intrev32ifbe(is->encoding); uint8_t newenc = _intsetValueEncoding(value); int length = intrev32ifbe(is->length); int prepend = value < 0 ? 1 : 0; /* First set new encoding and resize */ is->encoding = intrev32ifbe(newenc); is = intsetResize(is,intrev32ifbe(is->length)+1); /* Upgrade back-to-front so we don't overwrite values. * Note that the "prepend" variable is used to make sure we have an empty * space at either the beginning or the end of the intset. */ while(length--) _intsetSet(is,length+prepend,_intsetGetEncoded(is,length,curenc)); /* Set the value at the beginning or the end. */ if (prepend) _intsetSet(is,0,value); else _intsetSet(is,intrev32ifbe(is->length),value); is->length = intrev32ifbe(intrev32ifbe(is->length)+1); return is; } static void intsetMoveTail(intset *is, uint32_t from, uint32_t to) { void *src, *dst; uint32_t bytes = intrev32ifbe(is->length)-from; uint32_t encoding = intrev32ifbe(is->encoding); if (encoding == INTSET_ENC_INT64) { src = (int64_t*)is->contents+from; dst = (int64_t*)is->contents+to; bytes *= sizeof(int64_t); } else if (encoding == INTSET_ENC_INT32) { src = (int32_t*)is->contents+from; dst = (int32_t*)is->contents+to; bytes *= sizeof(int32_t); } else { src = (int16_t*)is->contents+from; dst = (int16_t*)is->contents+to; bytes *= sizeof(int16_t); } memmove(dst,src,bytes); } /* Insert an integer in the intset */ intset *intsetAdd(intset *is, int64_t value, uint8_t *success) { uint8_t valenc = _intsetValueEncoding(value); uint32_t pos; if (success) *success = 1; /* Upgrade encoding if necessary. If we need to upgrade, we know that * this value should be either appended (if > 0) or prepended (if < 0), * because it lies outside the range of existing values. */ if (valenc > intrev32ifbe(is->encoding)) { /* This always succeeds, so we don't need to curry *success. */ return intsetUpgradeAndAdd(is,value); } else { /* Abort if the value is already present in the set. * This call will populate "pos" with the right position to insert * the value when it cannot be found. */ if (intsetSearch(is,value,&pos)) { if (success) *success = 0; return is; } is = intsetResize(is,intrev32ifbe(is->length)+1); if (pos < intrev32ifbe(is->length)) intsetMoveTail(is,pos,pos+1); } _intsetSet(is,pos,value); is->length = intrev32ifbe(intrev32ifbe(is->length)+1); return is; } /* Delete integer from intset */ intset *intsetRemove(intset *is, int64_t value, int *success) { uint8_t valenc = _intsetValueEncoding(value); uint32_t pos; if (success) *success = 0; if (valenc <= intrev32ifbe(is->encoding) && intsetSearch(is,value,&pos)) { uint32_t len = intrev32ifbe(is->length); /* We know we can delete */ if (success) *success = 1; /* Overwrite value with tail and update length */ if (pos < (len-1)) intsetMoveTail(is,pos+1,pos); is = intsetResize(is,len-1); is->length = intrev32ifbe(len-1); } return is; } /* Determine whether a value belongs to this set */ uint8_t intsetFind(intset *is, int64_t value) { uint8_t valenc = _intsetValueEncoding(value); return valenc <= intrev32ifbe(is->encoding) && intsetSearch(is,value,NULL); } /* Return random member */ int64_t intsetRandom(intset *is) { return _intsetGet(is,rand()%intrev32ifbe(is->length)); } /* Sets the value to the value at the given position. When this position is * out of range the function returns 0, when in range it returns 1. */ uint8_t intsetGet(intset *is, uint32_t pos, int64_t *value) { if (pos < intrev32ifbe(is->length)) { *value = _intsetGet(is,pos); return 1; } return 0; } /* Return intset length */ uint32_t intsetLen(intset *is) { return intrev32ifbe(is->length); } /* Return intset blob size in bytes. */ size_t intsetBlobLen(intset *is) { return sizeof(intset)+intrev32ifbe(is->length)*intrev32ifbe(is->encoding); } #ifdef INTSET_TEST_MAIN #include void intsetRepr(intset *is) { int i; for (i = 0; i < intrev32ifbe(is->length); i++) { printf("%lld\n", (uint64_t)_intsetGet(is,i)); } printf("\n"); } void error(char *err) { printf("%s\n", err); exit(1); } void ok(void) { printf("OK\n"); } long long usec(void) { struct timeval tv; gettimeofday(&tv,NULL); return (((long long)tv.tv_sec)*1000000)+tv.tv_usec; } #define assert(_e) ((_e)?(void)0:(_assert(#_e,__FILE__,__LINE__),exit(1))) void _assert(char *estr, char *file, int line) { printf("\n\n=== ASSERTION FAILED ===\n"); printf("==> %s:%d '%s' is not true\n",file,line,estr); } intset *createSet(int bits, int size) { uint64_t mask = (1< 32) { value = (rand()*rand()) & mask; } else { value = rand() & mask; } is = intsetAdd(is,value,NULL); } return is; } void checkConsistency(intset *is) { int i; for (i = 0; i < (intrev32ifbe(is->length)-1); i++) { uint32_t encoding = intrev32ifbe(is->encoding); if (encoding == INTSET_ENC_INT16) { int16_t *i16 = (int16_t*)is->contents; assert(i16[i] < i16[i+1]); } else if (encoding == INTSET_ENC_INT32) { int32_t *i32 = (int32_t*)is->contents; assert(i32[i] < i32[i+1]); } else { int64_t *i64 = (int64_t*)is->contents; assert(i64[i] < i64[i+1]); } } } int main(int argc, char **argv) { uint8_t success; int i; intset *is; sranddev(); printf("Value encodings: "); { assert(_intsetValueEncoding(-32768) == INTSET_ENC_INT16); assert(_intsetValueEncoding(+32767) == INTSET_ENC_INT16); assert(_intsetValueEncoding(-32769) == INTSET_ENC_INT32); assert(_intsetValueEncoding(+32768) == INTSET_ENC_INT32); assert(_intsetValueEncoding(-2147483648) == INTSET_ENC_INT32); assert(_intsetValueEncoding(+2147483647) == INTSET_ENC_INT32); assert(_intsetValueEncoding(-2147483649) == INTSET_ENC_INT64); assert(_intsetValueEncoding(+2147483648) == INTSET_ENC_INT64); assert(_intsetValueEncoding(-9223372036854775808ull) == INTSET_ENC_INT64); assert(_intsetValueEncoding(+9223372036854775807ull) == INTSET_ENC_INT64); ok(); } printf("Basic adding: "); { is = intsetNew(); is = intsetAdd(is,5,&success); assert(success); is = intsetAdd(is,6,&success); assert(success); is = intsetAdd(is,4,&success); assert(success); is = intsetAdd(is,4,&success); assert(!success); ok(); } printf("Large number of random adds: "); { int inserts = 0; is = intsetNew(); for (i = 0; i < 1024; i++) { is = intsetAdd(is,rand()%0x800,&success); if (success) inserts++; } assert(intrev32ifbe(is->length) == inserts); checkConsistency(is); ok(); } printf("Upgrade from int16 to int32: "); { is = intsetNew(); is = intsetAdd(is,32,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT16); is = intsetAdd(is,65535,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT32); assert(intsetFind(is,32)); assert(intsetFind(is,65535)); checkConsistency(is); is = intsetNew(); is = intsetAdd(is,32,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT16); is = intsetAdd(is,-65535,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT32); assert(intsetFind(is,32)); assert(intsetFind(is,-65535)); checkConsistency(is); ok(); } printf("Upgrade from int16 to int64: "); { is = intsetNew(); is = intsetAdd(is,32,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT16); is = intsetAdd(is,4294967295,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT64); assert(intsetFind(is,32)); assert(intsetFind(is,4294967295)); checkConsistency(is); is = intsetNew(); is = intsetAdd(is,32,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT16); is = intsetAdd(is,-4294967295,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT64); assert(intsetFind(is,32)); assert(intsetFind(is,-4294967295)); checkConsistency(is); ok(); } printf("Upgrade from int32 to int64: "); { is = intsetNew(); is = intsetAdd(is,65535,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT32); is = intsetAdd(is,4294967295,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT64); assert(intsetFind(is,65535)); assert(intsetFind(is,4294967295)); checkConsistency(is); is = intsetNew(); is = intsetAdd(is,65535,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT32); is = intsetAdd(is,-4294967295,NULL); assert(intrev32ifbe(is->encoding) == INTSET_ENC_INT64); assert(intsetFind(is,65535)); assert(intsetFind(is,-4294967295)); checkConsistency(is); ok(); } printf("Stress lookups: "); { long num = 100000, size = 10000; int i, bits = 20; long long start; is = createSet(bits,size); checkConsistency(is); start = usec(); for (i = 0; i < num; i++) intsetSearch(is,rand() % ((1< * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __INTSET_H #define __INTSET_H #include typedef struct intset { uint32_t encoding; uint32_t length; int8_t contents[]; } intset; intset *intsetNew(void); intset *intsetAdd(intset *is, int64_t value, uint8_t *success); intset *intsetRemove(intset *is, int64_t value, int *success); uint8_t intsetFind(intset *is, int64_t value); int64_t intsetRandom(intset *is); uint8_t intsetGet(intset *is, uint32_t pos, int64_t *value); uint32_t intsetLen(intset *is); size_t intsetBlobLen(intset *is); #endif // __INTSET_H redis-2.6.16/src/lzf.h000066400000000000000000000104751220734223100144520ustar00rootroot00000000000000/* * Copyright (c) 2000-2008 Marc Alexander Lehmann * * Redistribution and use in source and binary forms, with or without modifica- * tion, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, the contents of this file may be used under the terms of * the GNU General Public License ("GPL") version 2 or any later version, * in which case the provisions of the GPL are applicable instead of * the above. If you wish to allow the use of your version of this file * only under the terms of the GPL and not to allow others to use your * version of this file under the BSD license, indicate your decision * by deleting the provisions above and replace them with the notice * and other provisions required by the GPL. If you do not delete the * provisions above, a recipient may use your version of this file under * either the BSD or the GPL. */ #ifndef LZF_H #define LZF_H /*********************************************************************** ** ** lzf -- an extremely fast/free compression/decompression-method ** http://liblzf.plan9.de/ ** ** This algorithm is believed to be patent-free. ** ***********************************************************************/ #define LZF_VERSION 0x0105 /* 1.5, API version */ /* * Compress in_len bytes stored at the memory block starting at * in_data and write the result to out_data, up to a maximum length * of out_len bytes. * * If the output buffer is not large enough or any error occurs return 0, * otherwise return the number of bytes used, which might be considerably * more than in_len (but less than 104% of the original size), so it * makes sense to always use out_len == in_len - 1), to ensure _some_ * compression, and store the data uncompressed otherwise (with a flag, of * course. * * lzf_compress might use different algorithms on different systems and * even different runs, thus might result in different compressed strings * depending on the phase of the moon or similar factors. However, all * these strings are architecture-independent and will result in the * original data when decompressed using lzf_decompress. * * The buffers must not be overlapping. * * If the option LZF_STATE_ARG is enabled, an extra argument must be * supplied which is not reflected in this header file. Refer to lzfP.h * and lzf_c.c. * */ unsigned int lzf_compress (const void *const in_data, unsigned int in_len, void *out_data, unsigned int out_len); /* * Decompress data compressed with some version of the lzf_compress * function and stored at location in_data and length in_len. The result * will be stored at out_data up to a maximum of out_len characters. * * If the output buffer is not large enough to hold the decompressed * data, a 0 is returned and errno is set to E2BIG. Otherwise the number * of decompressed bytes (i.e. the original length of the data) is * returned. * * If an error in the compressed data is detected, a zero is returned and * errno is set to EINVAL. * * This function is very fast, about as fast as a copying loop. */ unsigned int lzf_decompress (const void *const in_data, unsigned int in_len, void *out_data, unsigned int out_len); #endif redis-2.6.16/src/lzfP.h000066400000000000000000000120421220734223100145620ustar00rootroot00000000000000/* * Copyright (c) 2000-2007 Marc Alexander Lehmann * * Redistribution and use in source and binary forms, with or without modifica- * tion, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, the contents of this file may be used under the terms of * the GNU General Public License ("GPL") version 2 or any later version, * in which case the provisions of the GPL are applicable instead of * the above. If you wish to allow the use of your version of this file * only under the terms of the GPL and not to allow others to use your * version of this file under the BSD license, indicate your decision * by deleting the provisions above and replace them with the notice * and other provisions required by the GPL. If you do not delete the * provisions above, a recipient may use your version of this file under * either the BSD or the GPL. */ #ifndef LZFP_h #define LZFP_h #define STANDALONE 1 /* at the moment, this is ok. */ #ifndef STANDALONE # include "lzf.h" #endif /* * Size of hashtable is (1 << HLOG) * sizeof (char *) * decompression is independent of the hash table size * the difference between 15 and 14 is very small * for small blocks (and 14 is usually a bit faster). * For a low-memory/faster configuration, use HLOG == 13; * For best compression, use 15 or 16 (or more, up to 23). */ #ifndef HLOG # define HLOG 16 #endif /* * Sacrifice very little compression quality in favour of compression speed. * This gives almost the same compression as the default code, and is * (very roughly) 15% faster. This is the preferred mode of operation. */ #ifndef VERY_FAST # define VERY_FAST 1 #endif /* * Sacrifice some more compression quality in favour of compression speed. * (roughly 1-2% worse compression for large blocks and * 9-10% for small, redundant, blocks and >>20% better speed in both cases) * In short: when in need for speed, enable this for binary data, * possibly disable this for text data. */ #ifndef ULTRA_FAST # define ULTRA_FAST 0 #endif /* * Unconditionally aligning does not cost very much, so do it if unsure */ #ifndef STRICT_ALIGN # define STRICT_ALIGN !(defined(__i386) || defined (__amd64)) #endif /* * You may choose to pre-set the hash table (might be faster on some * modern cpus and large (>>64k) blocks, and also makes compression * deterministic/repeatable when the configuration otherwise is the same). */ #ifndef INIT_HTAB # define INIT_HTAB 0 #endif /* * Avoid assigning values to errno variable? for some embedding purposes * (linux kernel for example), this is necessary. NOTE: this breaks * the documentation in lzf.h. */ #ifndef AVOID_ERRNO # define AVOID_ERRNO 0 #endif /* * Whether to pass the LZF_STATE variable as argument, or allocate it * on the stack. For small-stack environments, define this to 1. * NOTE: this breaks the prototype in lzf.h. */ #ifndef LZF_STATE_ARG # define LZF_STATE_ARG 0 #endif /* * Whether to add extra checks for input validity in lzf_decompress * and return EINVAL if the input stream has been corrupted. This * only shields against overflowing the input buffer and will not * detect most corrupted streams. * This check is not normally noticeable on modern hardware * (<1% slowdown), but might slow down older cpus considerably. */ #ifndef CHECK_INPUT # define CHECK_INPUT 1 #endif /*****************************************************************************/ /* nothing should be changed below */ typedef unsigned char u8; typedef const u8 *LZF_STATE[1 << (HLOG)]; #if !STRICT_ALIGN /* for unaligned accesses we need a 16 bit datatype. */ # include # if USHRT_MAX == 65535 typedef unsigned short u16; # elif UINT_MAX == 65535 typedef unsigned int u16; # else # undef STRICT_ALIGN # define STRICT_ALIGN 1 # endif #endif #if ULTRA_FAST # if defined(VERY_FAST) # undef VERY_FAST # endif #endif #if INIT_HTAB # ifdef __cplusplus # include # else # include # endif #endif #endif redis-2.6.16/src/lzf_c.c000066400000000000000000000212331220734223100147410ustar00rootroot00000000000000/* * Copyright (c) 2000-2008 Marc Alexander Lehmann * * Redistribution and use in source and binary forms, with or without modifica- * tion, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, the contents of this file may be used under the terms of * the GNU General Public License ("GPL") version 2 or any later version, * in which case the provisions of the GPL are applicable instead of * the above. If you wish to allow the use of your version of this file * only under the terms of the GPL and not to allow others to use your * version of this file under the BSD license, indicate your decision * by deleting the provisions above and replace them with the notice * and other provisions required by the GPL. If you do not delete the * provisions above, a recipient may use your version of this file under * either the BSD or the GPL. */ #include "lzfP.h" #define HSIZE (1 << (HLOG)) /* * don't play with this unless you benchmark! * decompression is not dependent on the hash function * the hashing function might seem strange, just believe me * it works ;) */ #ifndef FRST # define FRST(p) (((p[0]) << 8) | p[1]) # define NEXT(v,p) (((v) << 8) | p[2]) # if ULTRA_FAST # define IDX(h) ((( h >> (3*8 - HLOG)) - h ) & (HSIZE - 1)) # elif VERY_FAST # define IDX(h) ((( h >> (3*8 - HLOG)) - h*5) & (HSIZE - 1)) # else # define IDX(h) ((((h ^ (h << 5)) >> (3*8 - HLOG)) - h*5) & (HSIZE - 1)) # endif #endif /* * IDX works because it is very similar to a multiplicative hash, e.g. * ((h * 57321 >> (3*8 - HLOG)) & (HSIZE - 1)) * the latter is also quite fast on newer CPUs, and compresses similarly. * * the next one is also quite good, albeit slow ;) * (int)(cos(h & 0xffffff) * 1e6) */ #if 0 /* original lzv-like hash function, much worse and thus slower */ # define FRST(p) (p[0] << 5) ^ p[1] # define NEXT(v,p) ((v) << 5) ^ p[2] # define IDX(h) ((h) & (HSIZE - 1)) #endif #define MAX_LIT (1 << 5) #define MAX_OFF (1 << 13) #define MAX_REF ((1 << 8) + (1 << 3)) #if __GNUC__ >= 3 # define expect(expr,value) __builtin_expect ((expr),(value)) # define inline inline #else # define expect(expr,value) (expr) # define inline static #endif #define expect_false(expr) expect ((expr) != 0, 0) #define expect_true(expr) expect ((expr) != 0, 1) /* * compressed format * * 000LLLLL ; literal * LLLooooo oooooooo ; backref L * 111ooooo LLLLLLLL oooooooo ; backref L+7 * */ unsigned int lzf_compress (const void *const in_data, unsigned int in_len, void *out_data, unsigned int out_len #if LZF_STATE_ARG , LZF_STATE htab #endif ) { #if !LZF_STATE_ARG LZF_STATE htab; #endif const u8 **hslot; const u8 *ip = (const u8 *)in_data; u8 *op = (u8 *)out_data; const u8 *in_end = ip + in_len; u8 *out_end = op + out_len; const u8 *ref; /* off requires a type wide enough to hold a general pointer difference. * ISO C doesn't have that (size_t might not be enough and ptrdiff_t only * works for differences within a single object). We also assume that no * no bit pattern traps. Since the only platform that is both non-POSIX * and fails to support both assumptions is windows 64 bit, we make a * special workaround for it. */ #if defined (WIN32) && defined (_M_X64) unsigned _int64 off; /* workaround for missing POSIX compliance */ #else unsigned long off; #endif unsigned int hval; int lit; if (!in_len || !out_len) return 0; #if INIT_HTAB memset (htab, 0, sizeof (htab)); # if 0 for (hslot = htab; hslot < htab + HSIZE; hslot++) *hslot++ = ip; # endif #endif lit = 0; op++; /* start run */ hval = FRST (ip); while (ip < in_end - 2) { hval = NEXT (hval, ip); hslot = htab + IDX (hval); ref = *hslot; *hslot = ip; if (1 #if INIT_HTAB && ref < ip /* the next test will actually take care of this, but this is faster */ #endif && (off = ip - ref - 1) < MAX_OFF && ip + 4 < in_end && ref > (u8 *)in_data #if STRICT_ALIGN && ref[0] == ip[0] && ref[1] == ip[1] && ref[2] == ip[2] #else && *(u16 *)ref == *(u16 *)ip && ref[2] == ip[2] #endif ) { /* match found at *ref++ */ unsigned int len = 2; unsigned int maxlen = in_end - ip - len; maxlen = maxlen > MAX_REF ? MAX_REF : maxlen; op [- lit - 1] = lit - 1; /* stop run */ op -= !lit; /* undo run if length is zero */ if (expect_false (op + 3 + 1 >= out_end)) return 0; for (;;) { if (expect_true (maxlen > 16)) { len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; len++; if (ref [len] != ip [len]) break; } do len++; while (len < maxlen && ref[len] == ip[len]); break; } len -= 2; /* len is now #octets - 1 */ ip++; if (len < 7) { *op++ = (off >> 8) + (len << 5); } else { *op++ = (off >> 8) + ( 7 << 5); *op++ = len - 7; } *op++ = off; lit = 0; op++; /* start run */ ip += len + 1; if (expect_false (ip >= in_end - 2)) break; #if ULTRA_FAST || VERY_FAST --ip; # if VERY_FAST && !ULTRA_FAST --ip; # endif hval = FRST (ip); hval = NEXT (hval, ip); htab[IDX (hval)] = ip; ip++; # if VERY_FAST && !ULTRA_FAST hval = NEXT (hval, ip); htab[IDX (hval)] = ip; ip++; # endif #else ip -= len + 1; do { hval = NEXT (hval, ip); htab[IDX (hval)] = ip; ip++; } while (len--); #endif } else { /* one more literal byte we must copy */ if (expect_false (op >= out_end)) return 0; lit++; *op++ = *ip++; if (expect_false (lit == MAX_LIT)) { op [- lit - 1] = lit - 1; /* stop run */ lit = 0; op++; /* start run */ } } } if (op + 3 > out_end) /* at most 3 bytes can be missing here */ return 0; while (ip < in_end) { lit++; *op++ = *ip++; if (expect_false (lit == MAX_LIT)) { op [- lit - 1] = lit - 1; /* stop run */ lit = 0; op++; /* start run */ } } op [- lit - 1] = lit - 1; /* end run */ op -= !lit; /* undo run if length is zero */ return op - (u8 *)out_data; } redis-2.6.16/src/lzf_d.c000066400000000000000000000103201220734223100147350ustar00rootroot00000000000000/* * Copyright (c) 2000-2007 Marc Alexander Lehmann * * Redistribution and use in source and binary forms, with or without modifica- * tion, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, the contents of this file may be used under the terms of * the GNU General Public License ("GPL") version 2 or any later version, * in which case the provisions of the GPL are applicable instead of * the above. If you wish to allow the use of your version of this file * only under the terms of the GPL and not to allow others to use your * version of this file under the BSD license, indicate your decision * by deleting the provisions above and replace them with the notice * and other provisions required by the GPL. If you do not delete the * provisions above, a recipient may use your version of this file under * either the BSD or the GPL. */ #include "lzfP.h" #if AVOID_ERRNO # define SET_ERRNO(n) #else # include # define SET_ERRNO(n) errno = (n) #endif /* #if (__i386 || __amd64) && __GNUC__ >= 3 # define lzf_movsb(dst, src, len) \ asm ("rep movsb" \ : "=D" (dst), "=S" (src), "=c" (len) \ : "0" (dst), "1" (src), "2" (len)); #endif */ unsigned int lzf_decompress (const void *const in_data, unsigned int in_len, void *out_data, unsigned int out_len) { u8 const *ip = (const u8 *)in_data; u8 *op = (u8 *)out_data; u8 const *const in_end = ip + in_len; u8 *const out_end = op + out_len; do { unsigned int ctrl = *ip++; if (ctrl < (1 << 5)) /* literal run */ { ctrl++; if (op + ctrl > out_end) { SET_ERRNO (E2BIG); return 0; } #if CHECK_INPUT if (ip + ctrl > in_end) { SET_ERRNO (EINVAL); return 0; } #endif #ifdef lzf_movsb lzf_movsb (op, ip, ctrl); #else do *op++ = *ip++; while (--ctrl); #endif } else /* back reference */ { unsigned int len = ctrl >> 5; u8 *ref = op - ((ctrl & 0x1f) << 8) - 1; #if CHECK_INPUT if (ip >= in_end) { SET_ERRNO (EINVAL); return 0; } #endif if (len == 7) { len += *ip++; #if CHECK_INPUT if (ip >= in_end) { SET_ERRNO (EINVAL); return 0; } #endif } ref -= *ip++; if (op + len + 2 > out_end) { SET_ERRNO (E2BIG); return 0; } if (ref < (u8 *)out_data) { SET_ERRNO (EINVAL); return 0; } #ifdef lzf_movsb len += 2; lzf_movsb (op, ref, len); #else *op++ = *ref++; *op++ = *ref++; do *op++ = *ref++; while (--len); #endif } } while (ip < in_end); return op - (u8 *)out_data; } redis-2.6.16/src/memtest.c000066400000000000000000000212301220734223100153170ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #if (ULONG_MAX == 4294967295UL) #define MEMTEST_32BIT #elif (ULONG_MAX == 18446744073709551615ULL) #define MEMTEST_64BIT #else #error "ULONG_MAX value not supported." #endif #ifdef MEMTEST_32BIT #define ULONG_ONEZERO 0xaaaaaaaaUL #define ULONG_ZEROONE 0x55555555UL #else #define ULONG_ONEZERO 0xaaaaaaaaaaaaaaaaUL #define ULONG_ZEROONE 0x5555555555555555UL #endif static struct winsize ws; size_t progress_printed; /* Printed chars in screen-wide progress bar. */ size_t progress_full; /* How many chars to write to fill the progress bar. */ void memtest_progress_start(char *title, int pass) { int j; printf("\x1b[H\x1b[2J"); /* Cursor home, clear screen. */ /* Fill with dots. */ for (j = 0; j < ws.ws_col*(ws.ws_row-2); j++) printf("."); printf("Please keep the test running several minutes per GB of memory.\n"); printf("Also check http://www.memtest86.com/ and http://pyropus.ca/software/memtester/"); printf("\x1b[H\x1b[2K"); /* Cursor home, clear current line. */ printf("%s [%d]\n", title, pass); /* Print title. */ progress_printed = 0; progress_full = ws.ws_col*(ws.ws_row-3); fflush(stdout); } void memtest_progress_end(void) { printf("\x1b[H\x1b[2J"); /* Cursor home, clear screen. */ } void memtest_progress_step(size_t curr, size_t size, char c) { size_t chars = ((unsigned long long)curr*progress_full)/size, j; for (j = 0; j < chars-progress_printed; j++) printf("%c",c); progress_printed = chars; fflush(stdout); } /* Test that addressing is fine. Every location is populated with its own * address, and finally verified. This test is very fast but may detect * ASAP big issues with the memory subsystem. */ void memtest_addressing(unsigned long *l, size_t bytes) { unsigned long words = bytes/sizeof(unsigned long); unsigned long j, *p; /* Fill */ p = l; for (j = 0; j < words; j++) { *p = (unsigned long)p; p++; if ((j & 0xffff) == 0) memtest_progress_step(j,words*2,'A'); } /* Test */ p = l; for (j = 0; j < words; j++) { if (*p != (unsigned long)p) { printf("\n*** MEMORY ADDRESSING ERROR: %p contains %lu\n", (void*) p, *p); exit(1); } p++; if ((j & 0xffff) == 0) memtest_progress_step(j+words,words*2,'A'); } } /* Fill words stepping a single page at every write, so we continue to * touch all the pages in the smallest amount of time reducing the * effectiveness of caches, and making it hard for the OS to transfer * pages on the swap. */ void memtest_fill_random(unsigned long *l, size_t bytes) { unsigned long step = 4096/sizeof(unsigned long); unsigned long words = bytes/sizeof(unsigned long)/2; unsigned long iwords = words/step; /* words per iteration */ unsigned long off, w, *l1, *l2; assert((bytes & 4095) == 0); for (off = 0; off < step; off++) { l1 = l+off; l2 = l1+words; for (w = 0; w < iwords; w++) { #ifdef MEMTEST_32BIT *l1 = *l2 = ((unsigned long) (rand()&0xffff)) | (((unsigned long) (rand()&0xffff)) << 16); #else *l1 = *l2 = ((unsigned long) (rand()&0xffff)) | (((unsigned long) (rand()&0xffff)) << 16) | (((unsigned long) (rand()&0xffff)) << 32) | (((unsigned long) (rand()&0xffff)) << 48); #endif l1 += step; l2 += step; if ((w & 0xffff) == 0) memtest_progress_step(w+iwords*off,words,'R'); } } } /* Like memtest_fill_random() but uses the two specified values to fill * memory, in an alternated way (v1|v2|v1|v2|...) */ void memtest_fill_value(unsigned long *l, size_t bytes, unsigned long v1, unsigned long v2, char sym) { unsigned long step = 4096/sizeof(unsigned long); unsigned long words = bytes/sizeof(unsigned long)/2; unsigned long iwords = words/step; /* words per iteration */ unsigned long off, w, *l1, *l2, v; assert((bytes & 4095) == 0); for (off = 0; off < step; off++) { l1 = l+off; l2 = l1+words; v = (off & 1) ? v2 : v1; for (w = 0; w < iwords; w++) { #ifdef MEMTEST_32BIT *l1 = *l2 = ((unsigned long) v) | (((unsigned long) v) << 16); #else *l1 = *l2 = ((unsigned long) v) | (((unsigned long) v) << 16) | (((unsigned long) v) << 32) | (((unsigned long) v) << 48); #endif l1 += step; l2 += step; if ((w & 0xffff) == 0) memtest_progress_step(w+iwords*off,words,sym); } } } void memtest_compare(unsigned long *l, size_t bytes) { unsigned long words = bytes/sizeof(unsigned long)/2; unsigned long w, *l1, *l2; assert((bytes & 4095) == 0); l1 = l; l2 = l1+words; for (w = 0; w < words; w++) { if (*l1 != *l2) { printf("\n*** MEMORY ERROR DETECTED: %p != %p (%lu vs %lu)\n", (void*)l1, (void*)l2, *l1, *l2); exit(1); } l1 ++; l2 ++; if ((w & 0xffff) == 0) memtest_progress_step(w,words,'='); } } void memtest_compare_times(unsigned long *m, size_t bytes, int pass, int times) { int j; for (j = 0; j < times; j++) { memtest_progress_start("Compare",pass); memtest_compare(m,bytes); memtest_progress_end(); } } void memtest_test(size_t megabytes, int passes) { size_t bytes = megabytes*1024*1024; unsigned long *m = malloc(bytes); int pass = 0; if (m == NULL) { fprintf(stderr,"Unable to allocate %zu megabytes: %s", megabytes, strerror(errno)); exit(1); } while (pass != passes) { pass++; memtest_progress_start("Addressing test",pass); memtest_addressing(m,bytes); memtest_progress_end(); memtest_progress_start("Random fill",pass); memtest_fill_random(m,bytes); memtest_progress_end(); memtest_compare_times(m,bytes,pass,4); memtest_progress_start("Solid fill",pass); memtest_fill_value(m,bytes,0,(unsigned long)-1,'S'); memtest_progress_end(); memtest_compare_times(m,bytes,pass,4); memtest_progress_start("Checkerboard fill",pass); memtest_fill_value(m,bytes,ULONG_ONEZERO,ULONG_ZEROONE,'C'); memtest_progress_end(); memtest_compare_times(m,bytes,pass,4); } } void memtest(size_t megabytes, int passes) { if (ioctl(1, TIOCGWINSZ, &ws) == -1) { ws.ws_col = 80; ws.ws_row = 20; } memtest_test(megabytes,passes); printf("\nYour memory passed this test.\n"); printf("Please if you are still in doubt use the following two tools:\n"); printf("1) memtest86: http://www.memtest86.com/\n"); printf("2) memtester: http://pyropus.ca/software/memtester/\n"); exit(0); } redis-2.6.16/src/migrate.c000066400000000000000000000200351220734223100152730ustar00rootroot00000000000000#include "redis.h" #include "endianconv.h" /* ----------------------------------------------------------------------------- * DUMP, RESTORE and MIGRATE commands * -------------------------------------------------------------------------- */ /* Generates a DUMP-format representation of the object 'o', adding it to the * io stream pointed by 'rio'. This function can't fail. */ void createDumpPayload(rio *payload, robj *o) { unsigned char buf[2]; uint64_t crc; /* Serialize the object in a RDB-like format. It consist of an object type * byte followed by the serialized object. This is understood by RESTORE. */ rioInitWithBuffer(payload,sdsempty()); redisAssert(rdbSaveObjectType(payload,o)); redisAssert(rdbSaveObject(payload,o)); /* Write the footer, this is how it looks like: * ----------------+---------------------+---------------+ * ... RDB payload | 2 bytes RDB version | 8 bytes CRC64 | * ----------------+---------------------+---------------+ * RDB version and CRC are both in little endian. */ /* RDB version */ buf[0] = REDIS_RDB_VERSION & 0xff; buf[1] = (REDIS_RDB_VERSION >> 8) & 0xff; payload->io.buffer.ptr = sdscatlen(payload->io.buffer.ptr,buf,2); /* CRC64 */ crc = crc64(0,(unsigned char*)payload->io.buffer.ptr, sdslen(payload->io.buffer.ptr)); memrev64ifbe(&crc); payload->io.buffer.ptr = sdscatlen(payload->io.buffer.ptr,&crc,8); } /* Verify that the RDB version of the dump payload matches the one of this Redis * instance and that the checksum is ok. * If the DUMP payload looks valid REDIS_OK is returned, otherwise REDIS_ERR * is returned. */ int verifyDumpPayload(unsigned char *p, size_t len) { unsigned char *footer; uint16_t rdbver; uint64_t crc; /* At least 2 bytes of RDB version and 8 of CRC64 should be present. */ if (len < 10) return REDIS_ERR; footer = p+(len-10); /* Verify RDB version */ rdbver = (footer[1] << 8) | footer[0]; if (rdbver != REDIS_RDB_VERSION) return REDIS_ERR; /* Verify CRC64 */ crc = crc64(0,p,len-8); memrev64ifbe(&crc); return (memcmp(&crc,footer+2,8) == 0) ? REDIS_OK : REDIS_ERR; } /* DUMP keyname * DUMP is actually not used by Redis Cluster but it is the obvious * complement of RESTORE and can be useful for different applications. */ void dumpCommand(redisClient *c) { robj *o, *dumpobj; rio payload; /* Check if the key is here. */ if ((o = lookupKeyRead(c->db,c->argv[1])) == NULL) { addReply(c,shared.nullbulk); return; } /* Create the DUMP encoded representation. */ createDumpPayload(&payload,o); /* Transfer to the client */ dumpobj = createObject(REDIS_STRING,payload.io.buffer.ptr); addReplyBulk(c,dumpobj); decrRefCount(dumpobj); return; } /* RESTORE key ttl serialized-value */ void restoreCommand(redisClient *c) { long ttl; rio payload; int type; robj *obj; /* Make sure this key does not already exist here... */ if (lookupKeyWrite(c->db,c->argv[1]) != NULL) { addReplyError(c,"Target key name is busy."); return; } /* Check if the TTL value makes sense */ if (getLongFromObjectOrReply(c,c->argv[2],&ttl,NULL) != REDIS_OK) { return; } else if (ttl < 0) { addReplyError(c,"Invalid TTL value, must be >= 0"); return; } /* Verify RDB version and data checksum. */ if (verifyDumpPayload(c->argv[3]->ptr,sdslen(c->argv[3]->ptr)) == REDIS_ERR) { addReplyError(c,"DUMP payload version or checksum are wrong"); return; } rioInitWithBuffer(&payload,c->argv[3]->ptr); if (((type = rdbLoadObjectType(&payload)) == -1) || ((obj = rdbLoadObject(type,&payload)) == NULL)) { addReplyError(c,"Bad data format"); return; } /* Create the key and set the TTL if any */ dbAdd(c->db,c->argv[1],obj); if (ttl) setExpire(c->db,c->argv[1],mstime()+ttl); signalModifiedKey(c->db,c->argv[1]); addReply(c,shared.ok); server.dirty++; } /* MIGRATE host port key dbid timeout */ void migrateCommand(redisClient *c) { int fd; long timeout; long dbid; long long ttl = 0, expireat; robj *o; rio cmd, payload; /* Sanity check */ if (getLongFromObjectOrReply(c,c->argv[5],&timeout,NULL) != REDIS_OK) return; if (getLongFromObjectOrReply(c,c->argv[4],&dbid,NULL) != REDIS_OK) return; if (timeout <= 0) timeout = 1000; /* Check if the key is here. If not we reply with success as there is * nothing to migrate (for instance the key expired in the meantime), but * we include such information in the reply string. */ if ((o = lookupKeyRead(c->db,c->argv[3])) == NULL) { addReplySds(c,sdsnew("+NOKEY\r\n")); return; } /* Connect */ fd = anetTcpNonBlockConnect(server.neterr,c->argv[1]->ptr, atoi(c->argv[2]->ptr)); if (fd == -1) { addReplyErrorFormat(c,"Can't connect to target node: %s", server.neterr); return; } if ((aeWait(fd,AE_WRITABLE,timeout) & AE_WRITABLE) == 0) { close(fd); addReplySds(c,sdsnew("-IOERR error or timeout connecting to the client\r\n")); return; } /* Create RESTORE payload and generate the protocol to call the command. */ rioInitWithBuffer(&cmd,sdsempty()); redisAssertWithInfo(c,NULL,rioWriteBulkCount(&cmd,'*',2)); redisAssertWithInfo(c,NULL,rioWriteBulkString(&cmd,"SELECT",6)); redisAssertWithInfo(c,NULL,rioWriteBulkLongLong(&cmd,dbid)); expireat = getExpire(c->db,c->argv[3]); if (expireat != -1) { ttl = expireat-mstime(); if (ttl < 1) ttl = 1; } redisAssertWithInfo(c,NULL,rioWriteBulkCount(&cmd,'*',4)); redisAssertWithInfo(c,NULL,rioWriteBulkString(&cmd,"RESTORE",7)); redisAssertWithInfo(c,NULL,c->argv[3]->encoding == REDIS_ENCODING_RAW); redisAssertWithInfo(c,NULL,rioWriteBulkString(&cmd,c->argv[3]->ptr,sdslen(c->argv[3]->ptr))); redisAssertWithInfo(c,NULL,rioWriteBulkLongLong(&cmd,ttl)); /* Finally the last argument that is the serailized object payload * in the DUMP format. */ createDumpPayload(&payload,o); redisAssertWithInfo(c,NULL,rioWriteBulkString(&cmd,payload.io.buffer.ptr, sdslen(payload.io.buffer.ptr))); sdsfree(payload.io.buffer.ptr); /* Tranfer the query to the other node in 64K chunks. */ { sds buf = cmd.io.buffer.ptr; size_t pos = 0, towrite; int nwritten = 0; while ((towrite = sdslen(buf)-pos) > 0) { towrite = (towrite > (64*1024) ? (64*1024) : towrite); nwritten = syncWrite(fd,buf+pos,towrite,timeout); if (nwritten != (signed)towrite) goto socket_wr_err; pos += nwritten; } } /* Read back the reply. */ { char buf1[1024]; char buf2[1024]; /* Read the two replies */ if (syncReadLine(fd, buf1, sizeof(buf1), timeout) <= 0) goto socket_rd_err; if (syncReadLine(fd, buf2, sizeof(buf2), timeout) <= 0) goto socket_rd_err; if (buf1[0] == '-' || buf2[0] == '-') { addReplyErrorFormat(c,"Target instance replied with error: %s", (buf1[0] == '-') ? buf1+1 : buf2+1); } else { robj *aux; dbDelete(c->db,c->argv[3]); signalModifiedKey(c->db,c->argv[3]); addReply(c,shared.ok); server.dirty++; /* Translate MIGRATE as DEL for replication/AOF. */ aux = createStringObject("DEL",3); rewriteClientCommandVector(c,2,aux,c->argv[3]); decrRefCount(aux); } } sdsfree(cmd.io.buffer.ptr); close(fd); return; socket_wr_err: addReplySds(c,sdsnew("-IOERR error or timeout writing to target instance\r\n")); sdsfree(cmd.io.buffer.ptr); close(fd); return; socket_rd_err: addReplySds(c,sdsnew("-IOERR error or timeout reading from target node\r\n")); sdsfree(cmd.io.buffer.ptr); close(fd); return; } redis-2.6.16/src/mkreleasehdr.sh000077500000000000000000000007341220734223100165100ustar00rootroot00000000000000#!/bin/sh GIT_SHA1=`(git show-ref --head --hash=8 2> /dev/null || echo 00000000) | head -n1` GIT_DIRTY=`git diff --no-ext-diff 2> /dev/null | wc -l` test -f release.h || touch release.h (cat release.h | grep SHA1 | grep $GIT_SHA1) && \ (cat release.h | grep DIRTY | grep $GIT_DIRTY) && exit 0 # Already up-to-date echo "#define REDIS_GIT_SHA1 \"$GIT_SHA1\"" > release.h echo "#define REDIS_GIT_DIRTY \"$GIT_DIRTY\"" >> release.h touch release.c # Force recompile of release.c redis-2.6.16/src/multi.c000066400000000000000000000260611220734223100150020ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" /* ================================ MULTI/EXEC ============================== */ /* Client state initialization for MULTI/EXEC */ void initClientMultiState(redisClient *c) { c->mstate.commands = NULL; c->mstate.count = 0; } /* Release all the resources associated with MULTI/EXEC state */ void freeClientMultiState(redisClient *c) { int j; for (j = 0; j < c->mstate.count; j++) { int i; multiCmd *mc = c->mstate.commands+j; for (i = 0; i < mc->argc; i++) decrRefCount(mc->argv[i]); zfree(mc->argv); } zfree(c->mstate.commands); } /* Add a new command into the MULTI commands queue */ void queueMultiCommand(redisClient *c) { multiCmd *mc; int j; c->mstate.commands = zrealloc(c->mstate.commands, sizeof(multiCmd)*(c->mstate.count+1)); mc = c->mstate.commands+c->mstate.count; mc->cmd = c->cmd; mc->argc = c->argc; mc->argv = zmalloc(sizeof(robj*)*c->argc); memcpy(mc->argv,c->argv,sizeof(robj*)*c->argc); for (j = 0; j < c->argc; j++) incrRefCount(mc->argv[j]); c->mstate.count++; } void discardTransaction(redisClient *c) { freeClientMultiState(c); initClientMultiState(c); c->flags &= ~(REDIS_MULTI|REDIS_DIRTY_CAS|REDIS_DIRTY_EXEC);; unwatchAllKeys(c); } /* Flag the transacation as DIRTY_EXEC so that EXEC will fail. * Should be called every time there is an error while queueing a command. */ void flagTransaction(redisClient *c) { if (c->flags & REDIS_MULTI) c->flags |= REDIS_DIRTY_EXEC; } void multiCommand(redisClient *c) { if (c->flags & REDIS_MULTI) { addReplyError(c,"MULTI calls can not be nested"); return; } c->flags |= REDIS_MULTI; addReply(c,shared.ok); } void discardCommand(redisClient *c) { if (!(c->flags & REDIS_MULTI)) { addReplyError(c,"DISCARD without MULTI"); return; } discardTransaction(c); addReply(c,shared.ok); } /* Send a MULTI command to all the slaves and AOF file. Check the execCommand * implementation for more information. */ void execCommandPropagateMulti(redisClient *c) { robj *multistring = createStringObject("MULTI",5); propagate(server.multiCommand,c->db->id,&multistring,1, REDIS_PROPAGATE_AOF|REDIS_PROPAGATE_REPL); decrRefCount(multistring); } void execCommand(redisClient *c) { int j; robj **orig_argv; int orig_argc; struct redisCommand *orig_cmd; int must_propagate = 0; /* Need to propagate MULTI/EXEC to AOF / slaves? */ if (!(c->flags & REDIS_MULTI)) { addReplyError(c,"EXEC without MULTI"); return; } /* Check if we need to abort the EXEC because: * 1) Some WATCHed key was touched. * 2) There was a previous error while queueing commands. * A failed EXEC in the first case returns a multi bulk nil object * (technically it is not an error but a special behavior), while * in the second an EXECABORT error is returned. */ if (c->flags & (REDIS_DIRTY_CAS|REDIS_DIRTY_EXEC)) { addReply(c, c->flags & REDIS_DIRTY_EXEC ? shared.execaborterr : shared.nullmultibulk); discardTransaction(c); goto handle_monitor; } /* Exec all the queued commands */ unwatchAllKeys(c); /* Unwatch ASAP otherwise we'll waste CPU cycles */ orig_argv = c->argv; orig_argc = c->argc; orig_cmd = c->cmd; addReplyMultiBulkLen(c,c->mstate.count); for (j = 0; j < c->mstate.count; j++) { c->argc = c->mstate.commands[j].argc; c->argv = c->mstate.commands[j].argv; c->cmd = c->mstate.commands[j].cmd; /* Propagate a MULTI request once we encounter the first write op. * This way we'll deliver the MULTI/..../EXEC block as a whole and * both the AOF and the replication link will have the same consistency * and atomicity guarantees. */ if (!must_propagate && !(c->cmd->flags & REDIS_CMD_READONLY)) { execCommandPropagateMulti(c); must_propagate = 1; } call(c,REDIS_CALL_FULL); /* Commands may alter argc/argv, restore mstate. */ c->mstate.commands[j].argc = c->argc; c->mstate.commands[j].argv = c->argv; c->mstate.commands[j].cmd = c->cmd; } c->argv = orig_argv; c->argc = orig_argc; c->cmd = orig_cmd; discardTransaction(c); /* Make sure the EXEC command will be propagated as well if MULTI * was already propagated. */ if (must_propagate) server.dirty++; handle_monitor: /* Send EXEC to clients waiting data from MONITOR. We do it here * since the natural order of commands execution is actually: * MUTLI, EXEC, ... commands inside transaction ... * Instead EXEC is flagged as REDIS_CMD_SKIP_MONITOR in the command * table, and we do it here with correct ordering. */ if (listLength(server.monitors) && !server.loading) replicationFeedMonitors(c,server.monitors,c->db->id,c->argv,c->argc); } /* ===================== WATCH (CAS alike for MULTI/EXEC) =================== * * The implementation uses a per-DB hash table mapping keys to list of clients * WATCHing those keys, so that given a key that is going to be modified * we can mark all the associated clients as dirty. * * Also every client contains a list of WATCHed keys so that's possible to * un-watch such keys when the client is freed or when UNWATCH is called. */ /* In the client->watched_keys list we need to use watchedKey structures * as in order to identify a key in Redis we need both the key name and the * DB */ typedef struct watchedKey { robj *key; redisDb *db; } watchedKey; /* Watch for the specified key */ void watchForKey(redisClient *c, robj *key) { list *clients = NULL; listIter li; listNode *ln; watchedKey *wk; /* Check if we are already watching for this key */ listRewind(c->watched_keys,&li); while((ln = listNext(&li))) { wk = listNodeValue(ln); if (wk->db == c->db && equalStringObjects(key,wk->key)) return; /* Key already watched */ } /* This key is not already watched in this DB. Let's add it */ clients = dictFetchValue(c->db->watched_keys,key); if (!clients) { clients = listCreate(); dictAdd(c->db->watched_keys,key,clients); incrRefCount(key); } listAddNodeTail(clients,c); /* Add the new key to the list of keys watched by this client */ wk = zmalloc(sizeof(*wk)); wk->key = key; wk->db = c->db; incrRefCount(key); listAddNodeTail(c->watched_keys,wk); } /* Unwatch all the keys watched by this client. To clean the EXEC dirty * flag is up to the caller. */ void unwatchAllKeys(redisClient *c) { listIter li; listNode *ln; if (listLength(c->watched_keys) == 0) return; listRewind(c->watched_keys,&li); while((ln = listNext(&li))) { list *clients; watchedKey *wk; /* Lookup the watched key -> clients list and remove the client * from the list */ wk = listNodeValue(ln); clients = dictFetchValue(wk->db->watched_keys, wk->key); redisAssertWithInfo(c,NULL,clients != NULL); listDelNode(clients,listSearchKey(clients,c)); /* Kill the entry at all if this was the only client */ if (listLength(clients) == 0) dictDelete(wk->db->watched_keys, wk->key); /* Remove this watched key from the client->watched list */ listDelNode(c->watched_keys,ln); decrRefCount(wk->key); zfree(wk); } } /* "Touch" a key, so that if this key is being WATCHed by some client the * next EXEC will fail. */ void touchWatchedKey(redisDb *db, robj *key) { list *clients; listIter li; listNode *ln; if (dictSize(db->watched_keys) == 0) return; clients = dictFetchValue(db->watched_keys, key); if (!clients) return; /* Mark all the clients watching this key as REDIS_DIRTY_CAS */ /* Check if we are already watching for this key */ listRewind(clients,&li); while((ln = listNext(&li))) { redisClient *c = listNodeValue(ln); c->flags |= REDIS_DIRTY_CAS; } } /* On FLUSHDB or FLUSHALL all the watched keys that are present before the * flush but will be deleted as effect of the flushing operation should * be touched. "dbid" is the DB that's getting the flush. -1 if it is * a FLUSHALL operation (all the DBs flushed). */ void touchWatchedKeysOnFlush(int dbid) { listIter li1, li2; listNode *ln; /* For every client, check all the waited keys */ listRewind(server.clients,&li1); while((ln = listNext(&li1))) { redisClient *c = listNodeValue(ln); listRewind(c->watched_keys,&li2); while((ln = listNext(&li2))) { watchedKey *wk = listNodeValue(ln); /* For every watched key matching the specified DB, if the * key exists, mark the client as dirty, as the key will be * removed. */ if (dbid == -1 || wk->db->id == dbid) { if (dictFind(wk->db->dict, wk->key->ptr) != NULL) c->flags |= REDIS_DIRTY_CAS; } } } } void watchCommand(redisClient *c) { int j; if (c->flags & REDIS_MULTI) { addReplyError(c,"WATCH inside MULTI is not allowed"); return; } for (j = 1; j < c->argc; j++) watchForKey(c,c->argv[j]); addReply(c,shared.ok); } void unwatchCommand(redisClient *c) { unwatchAllKeys(c); c->flags &= (~REDIS_DIRTY_CAS); addReply(c,shared.ok); } redis-2.6.16/src/networking.c000066400000000000000000001422241220734223100160370ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" #include static void setProtocolError(redisClient *c, int pos); /* To evaluate the output buffer size of a client we need to get size of * allocated objects, however we can't used zmalloc_size() directly on sds * strings because of the trick they use to work (the header is before the * returned pointer), so we use this helper function. */ size_t zmalloc_size_sds(sds s) { return zmalloc_size(s-sizeof(struct sdshdr)); } void *dupClientReplyValue(void *o) { incrRefCount((robj*)o); return o; } int listMatchObjects(void *a, void *b) { return equalStringObjects(a,b); } redisClient *createClient(int fd) { redisClient *c = zmalloc(sizeof(redisClient)); /* passing -1 as fd it is possible to create a non connected client. * This is useful since all the Redis commands needs to be executed * in the context of a client. When commands are executed in other * contexts (for instance a Lua script) we need a non connected client. */ if (fd != -1) { anetNonBlock(NULL,fd); anetEnableTcpNoDelay(NULL,fd); if (server.tcpkeepalive) anetKeepAlive(NULL,fd,server.tcpkeepalive); if (aeCreateFileEvent(server.el,fd,AE_READABLE, readQueryFromClient, c) == AE_ERR) { close(fd); zfree(c); return NULL; } } selectDb(c,0); c->fd = fd; c->name = NULL; c->bufpos = 0; c->querybuf = sdsempty(); c->querybuf_peak = 0; c->reqtype = 0; c->argc = 0; c->argv = NULL; c->cmd = c->lastcmd = NULL; c->multibulklen = 0; c->bulklen = -1; c->sentlen = 0; c->flags = 0; c->ctime = c->lastinteraction = server.unixtime; c->authenticated = 0; c->replstate = REDIS_REPL_NONE; c->slave_listening_port = 0; c->reply = listCreate(); c->reply_bytes = 0; c->obuf_soft_limit_reached_time = 0; listSetFreeMethod(c->reply,decrRefCount); listSetDupMethod(c->reply,dupClientReplyValue); c->bpop.keys = dictCreate(&setDictType,NULL); c->bpop.timeout = 0; c->bpop.target = NULL; c->io_keys = listCreate(); c->watched_keys = listCreate(); listSetFreeMethod(c->io_keys,decrRefCount); c->pubsub_channels = dictCreate(&setDictType,NULL); c->pubsub_patterns = listCreate(); listSetFreeMethod(c->pubsub_patterns,decrRefCount); listSetMatchMethod(c->pubsub_patterns,listMatchObjects); if (fd != -1) listAddNodeTail(server.clients,c); initClientMultiState(c); return c; } /* This function is called every time we are going to transmit new data * to the client. The behavior is the following: * * If the client should receive new data (normal clients will) the function * returns REDIS_OK, and make sure to install the write handler in our event * loop so that when the socket is writable new data gets written. * * If the client should not receive new data, because it is a fake client * or a slave, or because the setup of the write handler failed, the function * returns REDIS_ERR. * * Typically gets called every time a reply is built, before adding more * data to the clients output buffers. If the function returns REDIS_ERR no * data should be appended to the output buffers. */ int prepareClientToWrite(redisClient *c) { if (c->flags & REDIS_LUA_CLIENT) return REDIS_OK; if (c->fd <= 0) return REDIS_ERR; /* Fake client */ if (c->bufpos == 0 && listLength(c->reply) == 0 && (c->replstate == REDIS_REPL_NONE || c->replstate == REDIS_REPL_ONLINE) && aeCreateFileEvent(server.el, c->fd, AE_WRITABLE, sendReplyToClient, c) == AE_ERR) return REDIS_ERR; return REDIS_OK; } /* Create a duplicate of the last object in the reply list when * it is not exclusively owned by the reply list. */ robj *dupLastObjectIfNeeded(list *reply) { robj *new, *cur; listNode *ln; redisAssert(listLength(reply) > 0); ln = listLast(reply); cur = listNodeValue(ln); if (cur->refcount > 1) { new = dupStringObject(cur); decrRefCount(cur); listNodeValue(ln) = new; } return listNodeValue(ln); } /* ----------------------------------------------------------------------------- * Low level functions to add more data to output buffers. * -------------------------------------------------------------------------- */ int _addReplyToBuffer(redisClient *c, char *s, size_t len) { size_t available = sizeof(c->buf)-c->bufpos; if (c->flags & REDIS_CLOSE_AFTER_REPLY) return REDIS_OK; /* If there already are entries in the reply list, we cannot * add anything more to the static buffer. */ if (listLength(c->reply) > 0) return REDIS_ERR; /* Check that the buffer has enough space available for this string. */ if (len > available) return REDIS_ERR; memcpy(c->buf+c->bufpos,s,len); c->bufpos+=len; return REDIS_OK; } void _addReplyObjectToList(redisClient *c, robj *o) { robj *tail; if (c->flags & REDIS_CLOSE_AFTER_REPLY) return; if (listLength(c->reply) == 0) { incrRefCount(o); listAddNodeTail(c->reply,o); c->reply_bytes += zmalloc_size_sds(o->ptr); } else { tail = listNodeValue(listLast(c->reply)); /* Append to this object when possible. */ if (tail->ptr != NULL && sdslen(tail->ptr)+sdslen(o->ptr) <= REDIS_REPLY_CHUNK_BYTES) { c->reply_bytes -= zmalloc_size_sds(tail->ptr); tail = dupLastObjectIfNeeded(c->reply); tail->ptr = sdscatlen(tail->ptr,o->ptr,sdslen(o->ptr)); c->reply_bytes += zmalloc_size_sds(tail->ptr); } else { incrRefCount(o); listAddNodeTail(c->reply,o); c->reply_bytes += zmalloc_size_sds(o->ptr); } } asyncCloseClientOnOutputBufferLimitReached(c); } /* This method takes responsibility over the sds. When it is no longer * needed it will be free'd, otherwise it ends up in a robj. */ void _addReplySdsToList(redisClient *c, sds s) { robj *tail; if (c->flags & REDIS_CLOSE_AFTER_REPLY) { sdsfree(s); return; } if (listLength(c->reply) == 0) { listAddNodeTail(c->reply,createObject(REDIS_STRING,s)); c->reply_bytes += zmalloc_size_sds(s); } else { tail = listNodeValue(listLast(c->reply)); /* Append to this object when possible. */ if (tail->ptr != NULL && sdslen(tail->ptr)+sdslen(s) <= REDIS_REPLY_CHUNK_BYTES) { c->reply_bytes -= zmalloc_size_sds(tail->ptr); tail = dupLastObjectIfNeeded(c->reply); tail->ptr = sdscatlen(tail->ptr,s,sdslen(s)); c->reply_bytes += zmalloc_size_sds(tail->ptr); sdsfree(s); } else { listAddNodeTail(c->reply,createObject(REDIS_STRING,s)); c->reply_bytes += zmalloc_size_sds(s); } } asyncCloseClientOnOutputBufferLimitReached(c); } void _addReplyStringToList(redisClient *c, char *s, size_t len) { robj *tail; if (c->flags & REDIS_CLOSE_AFTER_REPLY) return; if (listLength(c->reply) == 0) { robj *o = createStringObject(s,len); listAddNodeTail(c->reply,o); c->reply_bytes += zmalloc_size_sds(o->ptr); } else { tail = listNodeValue(listLast(c->reply)); /* Append to this object when possible. */ if (tail->ptr != NULL && sdslen(tail->ptr)+len <= REDIS_REPLY_CHUNK_BYTES) { c->reply_bytes -= zmalloc_size_sds(tail->ptr); tail = dupLastObjectIfNeeded(c->reply); tail->ptr = sdscatlen(tail->ptr,s,len); c->reply_bytes += zmalloc_size_sds(tail->ptr); } else { robj *o = createStringObject(s,len); listAddNodeTail(c->reply,o); c->reply_bytes += zmalloc_size_sds(o->ptr); } } asyncCloseClientOnOutputBufferLimitReached(c); } /* ----------------------------------------------------------------------------- * Higher level functions to queue data on the client output buffer. * The following functions are the ones that commands implementations will call. * -------------------------------------------------------------------------- */ void addReply(redisClient *c, robj *obj) { if (prepareClientToWrite(c) != REDIS_OK) return; /* This is an important place where we can avoid copy-on-write * when there is a saving child running, avoiding touching the * refcount field of the object if it's not needed. * * If the encoding is RAW and there is room in the static buffer * we'll be able to send the object to the client without * messing with its page. */ if (obj->encoding == REDIS_ENCODING_RAW) { if (_addReplyToBuffer(c,obj->ptr,sdslen(obj->ptr)) != REDIS_OK) _addReplyObjectToList(c,obj); } else if (obj->encoding == REDIS_ENCODING_INT) { /* Optimization: if there is room in the static buffer for 32 bytes * (more than the max chars a 64 bit integer can take as string) we * avoid decoding the object and go for the lower level approach. */ if (listLength(c->reply) == 0 && (sizeof(c->buf) - c->bufpos) >= 32) { char buf[32]; int len; len = ll2string(buf,sizeof(buf),(long)obj->ptr); if (_addReplyToBuffer(c,buf,len) == REDIS_OK) return; /* else... continue with the normal code path, but should never * happen actually since we verified there is room. */ } obj = getDecodedObject(obj); if (_addReplyToBuffer(c,obj->ptr,sdslen(obj->ptr)) != REDIS_OK) _addReplyObjectToList(c,obj); decrRefCount(obj); } else { redisPanic("Wrong obj->encoding in addReply()"); } } void addReplySds(redisClient *c, sds s) { if (prepareClientToWrite(c) != REDIS_OK) { /* The caller expects the sds to be free'd. */ sdsfree(s); return; } if (_addReplyToBuffer(c,s,sdslen(s)) == REDIS_OK) { sdsfree(s); } else { /* This method free's the sds when it is no longer needed. */ _addReplySdsToList(c,s); } } void addReplyString(redisClient *c, char *s, size_t len) { if (prepareClientToWrite(c) != REDIS_OK) return; if (_addReplyToBuffer(c,s,len) != REDIS_OK) _addReplyStringToList(c,s,len); } void addReplyErrorLength(redisClient *c, char *s, size_t len) { addReplyString(c,"-ERR ",5); addReplyString(c,s,len); addReplyString(c,"\r\n",2); } void addReplyError(redisClient *c, char *err) { addReplyErrorLength(c,err,strlen(err)); } void addReplyErrorFormat(redisClient *c, const char *fmt, ...) { size_t l, j; va_list ap; va_start(ap,fmt); sds s = sdscatvprintf(sdsempty(),fmt,ap); va_end(ap); /* Make sure there are no newlines in the string, otherwise invalid protocol * is emitted. */ l = sdslen(s); for (j = 0; j < l; j++) { if (s[j] == '\r' || s[j] == '\n') s[j] = ' '; } addReplyErrorLength(c,s,sdslen(s)); sdsfree(s); } void addReplyStatusLength(redisClient *c, char *s, size_t len) { addReplyString(c,"+",1); addReplyString(c,s,len); addReplyString(c,"\r\n",2); } void addReplyStatus(redisClient *c, char *status) { addReplyStatusLength(c,status,strlen(status)); } void addReplyStatusFormat(redisClient *c, const char *fmt, ...) { va_list ap; va_start(ap,fmt); sds s = sdscatvprintf(sdsempty(),fmt,ap); va_end(ap); addReplyStatusLength(c,s,sdslen(s)); sdsfree(s); } /* Adds an empty object to the reply list that will contain the multi bulk * length, which is not known when this function is called. */ void *addDeferredMultiBulkLength(redisClient *c) { /* Note that we install the write event here even if the object is not * ready to be sent, since we are sure that before returning to the * event loop setDeferredMultiBulkLength() will be called. */ if (prepareClientToWrite(c) != REDIS_OK) return NULL; listAddNodeTail(c->reply,createObject(REDIS_STRING,NULL)); return listLast(c->reply); } /* Populate the length object and try gluing it to the next chunk. */ void setDeferredMultiBulkLength(redisClient *c, void *node, long length) { listNode *ln = (listNode*)node; robj *len, *next; /* Abort when *node is NULL (see addDeferredMultiBulkLength). */ if (node == NULL) return; len = listNodeValue(ln); len->ptr = sdscatprintf(sdsempty(),"*%ld\r\n",length); c->reply_bytes += zmalloc_size_sds(len->ptr); if (ln->next != NULL) { next = listNodeValue(ln->next); /* Only glue when the next node is non-NULL (an sds in this case) */ if (next->ptr != NULL) { c->reply_bytes -= zmalloc_size_sds(len->ptr); c->reply_bytes -= zmalloc_size_sds(next->ptr); len->ptr = sdscatlen(len->ptr,next->ptr,sdslen(next->ptr)); c->reply_bytes += zmalloc_size_sds(len->ptr); listDelNode(c->reply,ln->next); } } asyncCloseClientOnOutputBufferLimitReached(c); } /* Add a double as a bulk reply */ void addReplyDouble(redisClient *c, double d) { char dbuf[128], sbuf[128]; int dlen, slen; dlen = snprintf(dbuf,sizeof(dbuf),"%.17g",d); slen = snprintf(sbuf,sizeof(sbuf),"$%d\r\n%s\r\n",dlen,dbuf); addReplyString(c,sbuf,slen); } /* Add a long long as integer reply or bulk len / multi bulk count. * Basically this is used to output . */ void addReplyLongLongWithPrefix(redisClient *c, long long ll, char prefix) { char buf[128]; int len; /* Things like $3\r\n or *2\r\n are emitted very often by the protocol * so we have a few shared objects to use if the integer is small * like it is most of the times. */ if (prefix == '*' && ll < REDIS_SHARED_BULKHDR_LEN) { addReply(c,shared.mbulkhdr[ll]); return; } else if (prefix == '$' && ll < REDIS_SHARED_BULKHDR_LEN) { addReply(c,shared.bulkhdr[ll]); return; } buf[0] = prefix; len = ll2string(buf+1,sizeof(buf)-1,ll); buf[len+1] = '\r'; buf[len+2] = '\n'; addReplyString(c,buf,len+3); } void addReplyLongLong(redisClient *c, long long ll) { if (ll == 0) addReply(c,shared.czero); else if (ll == 1) addReply(c,shared.cone); else addReplyLongLongWithPrefix(c,ll,':'); } void addReplyMultiBulkLen(redisClient *c, long length) { addReplyLongLongWithPrefix(c,length,'*'); } /* Create the length prefix of a bulk reply, example: $2234 */ void addReplyBulkLen(redisClient *c, robj *obj) { size_t len; if (obj->encoding == REDIS_ENCODING_RAW) { len = sdslen(obj->ptr); } else { long n = (long)obj->ptr; /* Compute how many bytes will take this integer as a radix 10 string */ len = 1; if (n < 0) { len++; n = -n; } while((n = n/10) != 0) { len++; } } addReplyLongLongWithPrefix(c,len,'$'); } /* Add a Redis Object as a bulk reply */ void addReplyBulk(redisClient *c, robj *obj) { addReplyBulkLen(c,obj); addReply(c,obj); addReply(c,shared.crlf); } /* Add a C buffer as bulk reply */ void addReplyBulkCBuffer(redisClient *c, void *p, size_t len) { addReplyLongLongWithPrefix(c,len,'$'); addReplyString(c,p,len); addReply(c,shared.crlf); } /* Add a C nul term string as bulk reply */ void addReplyBulkCString(redisClient *c, char *s) { if (s == NULL) { addReply(c,shared.nullbulk); } else { addReplyBulkCBuffer(c,s,strlen(s)); } } /* Add a long long as a bulk reply */ void addReplyBulkLongLong(redisClient *c, long long ll) { char buf[64]; int len; len = ll2string(buf,64,ll); addReplyBulkCBuffer(c,buf,len); } /* Copy 'src' client output buffers into 'dst' client output buffers. * The function takes care of freeing the old output buffers of the * destination client. */ void copyClientOutputBuffer(redisClient *dst, redisClient *src) { listRelease(dst->reply); dst->reply = listDup(src->reply); memcpy(dst->buf,src->buf,src->bufpos); dst->bufpos = src->bufpos; dst->reply_bytes = src->reply_bytes; } static void acceptCommonHandler(int fd, int flags) { redisClient *c; if ((c = createClient(fd)) == NULL) { redisLog(REDIS_WARNING, "Error registering fd event for the new client: %s (fd=%d)", strerror(errno),fd); close(fd); /* May be already closed, just ignore errors */ return; } /* If maxclient directive is set and this is one client more... close the * connection. Note that we create the client instead to check before * for this condition, since now the socket is already set in non-blocking * mode and we can send an error for free using the Kernel I/O */ if (listLength(server.clients) > server.maxclients) { char *err = "-ERR max number of clients reached\r\n"; /* That's a best effort error message, don't check write errors */ if (write(c->fd,err,strlen(err)) == -1) { /* Nothing to do, Just to avoid the warning... */ } server.stat_rejected_conn++; freeClient(c); return; } server.stat_numconnections++; c->flags |= flags; } void acceptTcpHandler(aeEventLoop *el, int fd, void *privdata, int mask) { int cport, cfd; char cip[128]; REDIS_NOTUSED(el); REDIS_NOTUSED(mask); REDIS_NOTUSED(privdata); cfd = anetTcpAccept(server.neterr, fd, cip, &cport); if (cfd == AE_ERR) { redisLog(REDIS_WARNING,"Accepting client connection: %s", server.neterr); return; } redisLog(REDIS_VERBOSE,"Accepted %s:%d", cip, cport); acceptCommonHandler(cfd,0); } void acceptUnixHandler(aeEventLoop *el, int fd, void *privdata, int mask) { int cfd; REDIS_NOTUSED(el); REDIS_NOTUSED(mask); REDIS_NOTUSED(privdata); cfd = anetUnixAccept(server.neterr, fd); if (cfd == AE_ERR) { redisLog(REDIS_WARNING,"Accepting client connection: %s", server.neterr); return; } redisLog(REDIS_VERBOSE,"Accepted connection to %s", server.unixsocket); acceptCommonHandler(cfd,REDIS_UNIX_SOCKET); } static void freeClientArgv(redisClient *c) { int j; for (j = 0; j < c->argc; j++) decrRefCount(c->argv[j]); c->argc = 0; c->cmd = NULL; } /* Close all the slaves connections. This is useful in chained replication * when we resync with our own master and want to force all our slaves to * resync with us as well. */ void disconnectSlaves(void) { while (listLength(server.slaves)) { listNode *ln = listFirst(server.slaves); freeClient((redisClient*)ln->value); } } void freeClient(redisClient *c) { listNode *ln; /* If this is marked as current client unset it */ if (server.current_client == c) server.current_client = NULL; /* Note that if the client we are freeing is blocked into a blocking * call, we have to set querybuf to NULL *before* to call * unblockClientWaitingData() to avoid processInputBuffer() will get * called. Also it is important to remove the file events after * this, because this call adds the READABLE event. */ sdsfree(c->querybuf); c->querybuf = NULL; if (c->flags & REDIS_BLOCKED) unblockClientWaitingData(c); dictRelease(c->bpop.keys); /* UNWATCH all the keys */ unwatchAllKeys(c); listRelease(c->watched_keys); /* Unsubscribe from all the pubsub channels */ pubsubUnsubscribeAllChannels(c,0); pubsubUnsubscribeAllPatterns(c,0); dictRelease(c->pubsub_channels); listRelease(c->pubsub_patterns); /* Obvious cleanup */ aeDeleteFileEvent(server.el,c->fd,AE_READABLE); aeDeleteFileEvent(server.el,c->fd,AE_WRITABLE); listRelease(c->reply); freeClientArgv(c); close(c->fd); /* Remove from the list of clients */ ln = listSearchKey(server.clients,c); redisAssert(ln != NULL); listDelNode(server.clients,ln); /* When client was just unblocked because of a blocking operation, * remove it from the list with unblocked clients. */ if (c->flags & REDIS_UNBLOCKED) { ln = listSearchKey(server.unblocked_clients,c); redisAssert(ln != NULL); listDelNode(server.unblocked_clients,ln); } listRelease(c->io_keys); /* Master/slave cleanup. * Case 1: we lost the connection with a slave. */ if (c->flags & REDIS_SLAVE) { if (c->replstate == REDIS_REPL_SEND_BULK && c->repldbfd != -1) close(c->repldbfd); list *l = (c->flags & REDIS_MONITOR) ? server.monitors : server.slaves; ln = listSearchKey(l,c); redisAssert(ln != NULL); listDelNode(l,ln); } /* Case 2: we lost the connection with the master. */ if (c->flags & REDIS_MASTER) { server.master = NULL; server.repl_state = REDIS_REPL_CONNECT; server.repl_down_since = server.unixtime; /* We lost connection with our master, force our slaves to resync * with us as well to load the new data set. * * If server.masterhost is NULL the user called SLAVEOF NO ONE so * slave resync is not needed. */ if (server.masterhost != NULL) disconnectSlaves(); } /* If this client was scheduled for async freeing we need to remove it * from the queue. */ if (c->flags & REDIS_CLOSE_ASAP) { ln = listSearchKey(server.clients_to_close,c); redisAssert(ln != NULL); listDelNode(server.clients_to_close,ln); } /* Release memory */ if (c->name) decrRefCount(c->name); zfree(c->argv); freeClientMultiState(c); zfree(c); } /* Schedule a client to free it at a safe time in the serverCron() function. * This function is useful when we need to terminate a client but we are in * a context where calling freeClient() is not possible, because the client * should be valid for the continuation of the flow of the program. */ void freeClientAsync(redisClient *c) { if (c->flags & REDIS_CLOSE_ASAP) return; c->flags |= REDIS_CLOSE_ASAP; listAddNodeTail(server.clients_to_close,c); } void freeClientsInAsyncFreeQueue(void) { while (listLength(server.clients_to_close)) { listNode *ln = listFirst(server.clients_to_close); redisClient *c = listNodeValue(ln); c->flags &= ~REDIS_CLOSE_ASAP; freeClient(c); listDelNode(server.clients_to_close,ln); } } void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask) { redisClient *c = privdata; int nwritten = 0, totwritten = 0, objlen; size_t objmem; robj *o; REDIS_NOTUSED(el); REDIS_NOTUSED(mask); while(c->bufpos > 0 || listLength(c->reply)) { if (c->bufpos > 0) { if (c->flags & REDIS_MASTER) { /* Don't reply to a master */ nwritten = c->bufpos - c->sentlen; } else { nwritten = write(fd,c->buf+c->sentlen,c->bufpos-c->sentlen); if (nwritten <= 0) break; } c->sentlen += nwritten; totwritten += nwritten; /* If the buffer was sent, set bufpos to zero to continue with * the remainder of the reply. */ if (c->sentlen == c->bufpos) { c->bufpos = 0; c->sentlen = 0; } } else { o = listNodeValue(listFirst(c->reply)); objlen = sdslen(o->ptr); objmem = zmalloc_size_sds(o->ptr); if (objlen == 0) { listDelNode(c->reply,listFirst(c->reply)); continue; } if (c->flags & REDIS_MASTER) { /* Don't reply to a master */ nwritten = objlen - c->sentlen; } else { nwritten = write(fd, ((char*)o->ptr)+c->sentlen,objlen-c->sentlen); if (nwritten <= 0) break; } c->sentlen += nwritten; totwritten += nwritten; /* If we fully sent the object on head go to the next one */ if (c->sentlen == objlen) { listDelNode(c->reply,listFirst(c->reply)); c->sentlen = 0; c->reply_bytes -= objmem; } } /* Note that we avoid to send more than REDIS_MAX_WRITE_PER_EVENT * bytes, in a single threaded server it's a good idea to serve * other clients as well, even if a very large request comes from * super fast link that is always able to accept data (in real world * scenario think about 'KEYS *' against the loopback interface). * * However if we are over the maxmemory limit we ignore that and * just deliver as much data as it is possible to deliver. */ if (totwritten > REDIS_MAX_WRITE_PER_EVENT && (server.maxmemory == 0 || zmalloc_used_memory() < server.maxmemory)) break; } if (nwritten == -1) { if (errno == EAGAIN) { nwritten = 0; } else { redisLog(REDIS_VERBOSE, "Error writing to client: %s", strerror(errno)); freeClient(c); return; } } if (totwritten > 0) c->lastinteraction = server.unixtime; if (c->bufpos == 0 && listLength(c->reply) == 0) { c->sentlen = 0; aeDeleteFileEvent(server.el,c->fd,AE_WRITABLE); /* Close connection after entire reply has been sent. */ if (c->flags & REDIS_CLOSE_AFTER_REPLY) freeClient(c); } } /* resetClient prepare the client to process the next command */ void resetClient(redisClient *c) { freeClientArgv(c); c->reqtype = 0; c->multibulklen = 0; c->bulklen = -1; /* We clear the ASKING flag as well if we are not inside a MULTI. */ if (!(c->flags & REDIS_MULTI)) c->flags &= (~REDIS_ASKING); } int processInlineBuffer(redisClient *c) { char *newline = strstr(c->querybuf,"\r\n"); int argc, j; sds *argv; size_t querylen; /* Nothing to do without a \r\n */ if (newline == NULL) { if (sdslen(c->querybuf) > REDIS_INLINE_MAX_SIZE) { addReplyError(c,"Protocol error: too big inline request"); setProtocolError(c,0); } return REDIS_ERR; } /* Split the input buffer up to the \r\n */ querylen = newline-(c->querybuf); argv = sdssplitlen(c->querybuf,querylen," ",1,&argc); /* Leave data after the first line of the query in the buffer */ c->querybuf = sdsrange(c->querybuf,querylen+2,-1); /* Setup argv array on client structure */ if (c->argv) zfree(c->argv); c->argv = zmalloc(sizeof(robj*)*argc); /* Create redis objects for all arguments. */ for (c->argc = 0, j = 0; j < argc; j++) { if (sdslen(argv[j])) { c->argv[c->argc] = createObject(REDIS_STRING,argv[j]); c->argc++; } else { sdsfree(argv[j]); } } zfree(argv); return REDIS_OK; } /* Helper function. Trims query buffer to make the function that processes * multi bulk requests idempotent. */ static void setProtocolError(redisClient *c, int pos) { if (server.verbosity >= REDIS_VERBOSE) { sds client = getClientInfoString(c); redisLog(REDIS_VERBOSE, "Protocol error from client: %s", client); sdsfree(client); } c->flags |= REDIS_CLOSE_AFTER_REPLY; c->querybuf = sdsrange(c->querybuf,pos,-1); } int processMultibulkBuffer(redisClient *c) { char *newline = NULL; int pos = 0, ok; long long ll; if (c->multibulklen == 0) { /* The client should have been reset */ redisAssertWithInfo(c,NULL,c->argc == 0); /* Multi bulk length cannot be read without a \r\n */ newline = strchr(c->querybuf,'\r'); if (newline == NULL) { if (sdslen(c->querybuf) > REDIS_INLINE_MAX_SIZE) { addReplyError(c,"Protocol error: too big mbulk count string"); setProtocolError(c,0); } return REDIS_ERR; } /* Buffer should also contain \n */ if (newline-(c->querybuf) > ((signed)sdslen(c->querybuf)-2)) return REDIS_ERR; /* We know for sure there is a whole line since newline != NULL, * so go ahead and find out the multi bulk length. */ redisAssertWithInfo(c,NULL,c->querybuf[0] == '*'); ok = string2ll(c->querybuf+1,newline-(c->querybuf+1),&ll); if (!ok || ll > 1024*1024) { addReplyError(c,"Protocol error: invalid multibulk length"); setProtocolError(c,pos); return REDIS_ERR; } pos = (newline-c->querybuf)+2; if (ll <= 0) { c->querybuf = sdsrange(c->querybuf,pos,-1); return REDIS_OK; } c->multibulklen = ll; /* Setup argv array on client structure */ if (c->argv) zfree(c->argv); c->argv = zmalloc(sizeof(robj*)*c->multibulklen); } redisAssertWithInfo(c,NULL,c->multibulklen > 0); while(c->multibulklen) { /* Read bulk length if unknown */ if (c->bulklen == -1) { newline = strchr(c->querybuf+pos,'\r'); if (newline == NULL) { if (sdslen(c->querybuf) > REDIS_INLINE_MAX_SIZE) { addReplyError(c,"Protocol error: too big bulk count string"); setProtocolError(c,0); } break; } /* Buffer should also contain \n */ if (newline-(c->querybuf) > ((signed)sdslen(c->querybuf)-2)) break; if (c->querybuf[pos] != '$') { addReplyErrorFormat(c, "Protocol error: expected '$', got '%c'", c->querybuf[pos]); setProtocolError(c,pos); return REDIS_ERR; } ok = string2ll(c->querybuf+pos+1,newline-(c->querybuf+pos+1),&ll); if (!ok || ll < 0 || ll > 512*1024*1024) { addReplyError(c,"Protocol error: invalid bulk length"); setProtocolError(c,pos); return REDIS_ERR; } pos += newline-(c->querybuf+pos)+2; if (ll >= REDIS_MBULK_BIG_ARG) { size_t qblen; /* If we are going to read a large object from network * try to make it likely that it will start at c->querybuf * boundary so that we can optimize object creation * avoiding a large copy of data. */ c->querybuf = sdsrange(c->querybuf,pos,-1); pos = 0; qblen = sdslen(c->querybuf); /* Hint the sds library about the amount of bytes this string is * going to contain. */ if (qblen < ll+2) c->querybuf = sdsMakeRoomFor(c->querybuf,ll+2-qblen); } c->bulklen = ll; } /* Read bulk argument */ if (sdslen(c->querybuf)-pos < (unsigned)(c->bulklen+2)) { /* Not enough data (+2 == trailing \r\n) */ break; } else { /* Optimization: if the buffer contains JUST our bulk element * instead of creating a new object by *copying* the sds we * just use the current sds string. */ if (pos == 0 && c->bulklen >= REDIS_MBULK_BIG_ARG && (signed) sdslen(c->querybuf) == c->bulklen+2) { c->argv[c->argc++] = createObject(REDIS_STRING,c->querybuf); sdsIncrLen(c->querybuf,-2); /* remove CRLF */ c->querybuf = sdsempty(); /* Assume that if we saw a fat argument we'll see another one * likely... */ c->querybuf = sdsMakeRoomFor(c->querybuf,c->bulklen+2); pos = 0; } else { c->argv[c->argc++] = createStringObject(c->querybuf+pos,c->bulklen); pos += c->bulklen+2; } c->bulklen = -1; c->multibulklen--; } } /* Trim to pos */ if (pos) c->querybuf = sdsrange(c->querybuf,pos,-1); /* We're done when c->multibulk == 0 */ if (c->multibulklen == 0) return REDIS_OK; /* Still not read to process the command */ return REDIS_ERR; } void processInputBuffer(redisClient *c) { /* Keep processing while there is something in the input buffer */ while(sdslen(c->querybuf)) { /* Immediately abort if the client is in the middle of something. */ if (c->flags & REDIS_BLOCKED) return; /* REDIS_CLOSE_AFTER_REPLY closes the connection once the reply is * written to the client. Make sure to not let the reply grow after * this flag has been set (i.e. don't process more commands). */ if (c->flags & REDIS_CLOSE_AFTER_REPLY) return; /* Determine request type when unknown. */ if (!c->reqtype) { if (c->querybuf[0] == '*') { c->reqtype = REDIS_REQ_MULTIBULK; } else { c->reqtype = REDIS_REQ_INLINE; } } if (c->reqtype == REDIS_REQ_INLINE) { if (processInlineBuffer(c) != REDIS_OK) break; } else if (c->reqtype == REDIS_REQ_MULTIBULK) { if (processMultibulkBuffer(c) != REDIS_OK) break; } else { redisPanic("Unknown request type"); } /* Multibulk processing could see a <= 0 length. */ if (c->argc == 0) { resetClient(c); } else { /* Only reset the client when the command was executed. */ if (processCommand(c) == REDIS_OK) resetClient(c); } } } void readQueryFromClient(aeEventLoop *el, int fd, void *privdata, int mask) { redisClient *c = (redisClient*) privdata; int nread, readlen; size_t qblen; REDIS_NOTUSED(el); REDIS_NOTUSED(mask); server.current_client = c; readlen = REDIS_IOBUF_LEN; /* If this is a multi bulk request, and we are processing a bulk reply * that is large enough, try to maximize the probability that the query * buffer contains exactly the SDS string representing the object, even * at the risk of requiring more read(2) calls. This way the function * processMultiBulkBuffer() can avoid copying buffers to create the * Redis Object representing the argument. */ if (c->reqtype == REDIS_REQ_MULTIBULK && c->multibulklen && c->bulklen != -1 && c->bulklen >= REDIS_MBULK_BIG_ARG) { int remaining = (unsigned)(c->bulklen+2)-sdslen(c->querybuf); if (remaining < readlen) readlen = remaining; } qblen = sdslen(c->querybuf); if (c->querybuf_peak < qblen) c->querybuf_peak = qblen; c->querybuf = sdsMakeRoomFor(c->querybuf, readlen); nread = read(fd, c->querybuf+qblen, readlen); if (nread == -1) { if (errno == EAGAIN) { nread = 0; } else { redisLog(REDIS_VERBOSE, "Reading from client: %s",strerror(errno)); freeClient(c); return; } } else if (nread == 0) { redisLog(REDIS_VERBOSE, "Client closed connection"); freeClient(c); return; } if (nread) { sdsIncrLen(c->querybuf,nread); c->lastinteraction = server.unixtime; } else { server.current_client = NULL; return; } if (sdslen(c->querybuf) > server.client_max_querybuf_len) { sds ci = getClientInfoString(c), bytes = sdsempty(); bytes = sdscatrepr(bytes,c->querybuf,64); redisLog(REDIS_WARNING,"Closing client that reached max query buffer length: %s (qbuf initial bytes: %s)", ci, bytes); sdsfree(ci); sdsfree(bytes); freeClient(c); return; } processInputBuffer(c); server.current_client = NULL; } void getClientsMaxBuffers(unsigned long *longest_output_list, unsigned long *biggest_input_buffer) { redisClient *c; listNode *ln; listIter li; unsigned long lol = 0, bib = 0; listRewind(server.clients,&li); while ((ln = listNext(&li)) != NULL) { c = listNodeValue(ln); if (listLength(c->reply) > lol) lol = listLength(c->reply); if (sdslen(c->querybuf) > bib) bib = sdslen(c->querybuf); } *longest_output_list = lol; *biggest_input_buffer = bib; } /* Turn a Redis client into an sds string representing its state. */ sds getClientInfoString(redisClient *client) { char ip[32], flags[16], events[3], *p; int port = 0; /* initialized to zero for the unix socket case. */ int emask; if (!(client->flags & REDIS_UNIX_SOCKET)) anetPeerToString(client->fd,ip,&port); p = flags; if (client->flags & REDIS_SLAVE) { if (client->flags & REDIS_MONITOR) *p++ = 'O'; else *p++ = 'S'; } if (client->flags & REDIS_MASTER) *p++ = 'M'; if (client->flags & REDIS_MULTI) *p++ = 'x'; if (client->flags & REDIS_BLOCKED) *p++ = 'b'; if (client->flags & REDIS_DIRTY_CAS) *p++ = 'd'; if (client->flags & REDIS_CLOSE_AFTER_REPLY) *p++ = 'c'; if (client->flags & REDIS_UNBLOCKED) *p++ = 'u'; if (client->flags & REDIS_CLOSE_ASAP) *p++ = 'A'; if (client->flags & REDIS_UNIX_SOCKET) *p++ = 'U'; if (p == flags) *p++ = 'N'; *p++ = '\0'; emask = client->fd == -1 ? 0 : aeGetFileEvents(server.el,client->fd); p = events; if (emask & AE_READABLE) *p++ = 'r'; if (emask & AE_WRITABLE) *p++ = 'w'; *p = '\0'; return sdscatprintf(sdsempty(), "addr=%s:%d fd=%d name=%s age=%ld idle=%ld flags=%s db=%d sub=%d psub=%d multi=%d qbuf=%lu qbuf-free=%lu obl=%lu oll=%lu omem=%lu events=%s cmd=%s", (client->flags & REDIS_UNIX_SOCKET) ? server.unixsocket : ip, port, client->fd, client->name ? (char*)client->name->ptr : "", (long)(server.unixtime - client->ctime), (long)(server.unixtime - client->lastinteraction), flags, client->db->id, (int) dictSize(client->pubsub_channels), (int) listLength(client->pubsub_patterns), (client->flags & REDIS_MULTI) ? client->mstate.count : -1, (unsigned long) sdslen(client->querybuf), (unsigned long) sdsavail(client->querybuf), (unsigned long) client->bufpos, (unsigned long) listLength(client->reply), getClientOutputBufferMemoryUsage(client), events, client->lastcmd ? client->lastcmd->name : "NULL"); } sds getAllClientsInfoString(void) { listNode *ln; listIter li; redisClient *client; sds o = sdsempty(); listRewind(server.clients,&li); while ((ln = listNext(&li)) != NULL) { sds cs; client = listNodeValue(ln); cs = getClientInfoString(client); o = sdscatsds(o,cs); sdsfree(cs); o = sdscatlen(o,"\n",1); } return o; } void clientCommand(redisClient *c) { listNode *ln; listIter li; redisClient *client; if (!strcasecmp(c->argv[1]->ptr,"list") && c->argc == 2) { sds o = getAllClientsInfoString(); addReplyBulkCBuffer(c,o,sdslen(o)); sdsfree(o); } else if (!strcasecmp(c->argv[1]->ptr,"kill") && c->argc == 3) { listRewind(server.clients,&li); while ((ln = listNext(&li)) != NULL) { char ip[32], addr[64]; int port; client = listNodeValue(ln); if (anetPeerToString(client->fd,ip,&port) == -1) continue; snprintf(addr,sizeof(addr),"%s:%d",ip,port); if (strcmp(addr,c->argv[2]->ptr) == 0) { addReply(c,shared.ok); if (c == client) { client->flags |= REDIS_CLOSE_AFTER_REPLY; } else { freeClient(client); } return; } } addReplyError(c,"No such client"); } else if (!strcasecmp(c->argv[1]->ptr,"setname") && c->argc == 3) { int j, len = sdslen(c->argv[2]->ptr); char *p = c->argv[2]->ptr; /* Setting the client name to an empty string actually removes * the current name. */ if (len == 0) { if (c->name) decrRefCount(c->name); c->name = NULL; addReply(c,shared.ok); return; } /* Otherwise check if the charset is ok. We need to do this otherwise * CLIENT LIST format will break. You should always be able to * split by space to get the different fields. */ for (j = 0; j < len; j++) { if (p[j] < '!' || p[j] > '~') { /* ASCII is assumed. */ addReplyError(c, "Client names cannot contain spaces, " "newlines or special characters."); return; } } if (c->name) decrRefCount(c->name); c->name = c->argv[2]; incrRefCount(c->name); addReply(c,shared.ok); } else if (!strcasecmp(c->argv[1]->ptr,"getname") && c->argc == 2) { if (c->name) addReplyBulk(c,c->name); else addReply(c,shared.nullbulk); } else { addReplyError(c, "Syntax error, try CLIENT (LIST | KILL ip:port | GETNAME | SETNAME connection-name)"); } } /* Rewrite the command vector of the client. All the new objects ref count * is incremented. The old command vector is freed, and the old objects * ref count is decremented. */ void rewriteClientCommandVector(redisClient *c, int argc, ...) { va_list ap; int j; robj **argv; /* The new argument vector */ argv = zmalloc(sizeof(robj*)*argc); va_start(ap,argc); for (j = 0; j < argc; j++) { robj *a; a = va_arg(ap, robj*); argv[j] = a; incrRefCount(a); } /* We free the objects in the original vector at the end, so we are * sure that if the same objects are reused in the new vector the * refcount gets incremented before it gets decremented. */ for (j = 0; j < c->argc; j++) decrRefCount(c->argv[j]); zfree(c->argv); /* Replace argv and argc with our new versions. */ c->argv = argv; c->argc = argc; c->cmd = lookupCommandOrOriginal(c->argv[0]->ptr); redisAssertWithInfo(c,NULL,c->cmd != NULL); va_end(ap); } /* Rewrite a single item in the command vector. * The new val ref count is incremented, and the old decremented. */ void rewriteClientCommandArgument(redisClient *c, int i, robj *newval) { robj *oldval; redisAssertWithInfo(c,NULL,i < c->argc); oldval = c->argv[i]; c->argv[i] = newval; incrRefCount(newval); decrRefCount(oldval); /* If this is the command name make sure to fix c->cmd. */ if (i == 0) { c->cmd = lookupCommandOrOriginal(c->argv[0]->ptr); redisAssertWithInfo(c,NULL,c->cmd != NULL); } } /* This function returns the number of bytes that Redis is virtually * using to store the reply still not read by the client. * It is "virtual" since the reply output list may contain objects that * are shared and are not really using additional memory. * * The function returns the total sum of the length of all the objects * stored in the output list, plus the memory used to allocate every * list node. The static reply buffer is not taken into account since it * is allocated anyway. * * Note: this function is very fast so can be called as many time as * the caller wishes. The main usage of this function currently is * enforcing the client output length limits. */ unsigned long getClientOutputBufferMemoryUsage(redisClient *c) { unsigned long list_item_size = sizeof(listNode)+sizeof(robj); return c->reply_bytes + (list_item_size*listLength(c->reply)); } /* Get the class of a client, used in order to enforce limits to different * classes of clients. * * The function will return one of the following: * REDIS_CLIENT_LIMIT_CLASS_NORMAL -> Normal client * REDIS_CLIENT_LIMIT_CLASS_SLAVE -> Slave or client executing MONITOR command * REDIS_CLIENT_LIMIT_CLASS_PUBSUB -> Client subscribed to Pub/Sub channels */ int getClientLimitClass(redisClient *c) { if (c->flags & REDIS_SLAVE) return REDIS_CLIENT_LIMIT_CLASS_SLAVE; if (dictSize(c->pubsub_channels) || listLength(c->pubsub_patterns)) return REDIS_CLIENT_LIMIT_CLASS_PUBSUB; return REDIS_CLIENT_LIMIT_CLASS_NORMAL; } int getClientLimitClassByName(char *name) { if (!strcasecmp(name,"normal")) return REDIS_CLIENT_LIMIT_CLASS_NORMAL; else if (!strcasecmp(name,"slave")) return REDIS_CLIENT_LIMIT_CLASS_SLAVE; else if (!strcasecmp(name,"pubsub")) return REDIS_CLIENT_LIMIT_CLASS_PUBSUB; else return -1; } char *getClientLimitClassName(int class) { switch(class) { case REDIS_CLIENT_LIMIT_CLASS_NORMAL: return "normal"; case REDIS_CLIENT_LIMIT_CLASS_SLAVE: return "slave"; case REDIS_CLIENT_LIMIT_CLASS_PUBSUB: return "pubsub"; default: return NULL; } } /* The function checks if the client reached output buffer soft or hard * limit, and also update the state needed to check the soft limit as * a side effect. * * Return value: non-zero if the client reached the soft or the hard limit. * Otherwise zero is returned. */ int checkClientOutputBufferLimits(redisClient *c) { int soft = 0, hard = 0, class; unsigned long used_mem = getClientOutputBufferMemoryUsage(c); class = getClientLimitClass(c); if (server.client_obuf_limits[class].hard_limit_bytes && used_mem >= server.client_obuf_limits[class].hard_limit_bytes) hard = 1; if (server.client_obuf_limits[class].soft_limit_bytes && used_mem >= server.client_obuf_limits[class].soft_limit_bytes) soft = 1; /* We need to check if the soft limit is reached continuously for the * specified amount of seconds. */ if (soft) { if (c->obuf_soft_limit_reached_time == 0) { c->obuf_soft_limit_reached_time = server.unixtime; soft = 0; /* First time we see the soft limit reached */ } else { time_t elapsed = server.unixtime - c->obuf_soft_limit_reached_time; if (elapsed <= server.client_obuf_limits[class].soft_limit_seconds) { soft = 0; /* The client still did not reached the max number of seconds for the soft limit to be considered reached. */ } } } else { c->obuf_soft_limit_reached_time = 0; } return soft || hard; } /* Asynchronously close a client if soft or hard limit is reached on the * output buffer size. The caller can check if the client will be closed * checking if the client REDIS_CLOSE_ASAP flag is set. * * Note: we need to close the client asynchronously because this function is * called from contexts where the client can't be freed safely, i.e. from the * lower level functions pushing data inside the client output buffers. */ void asyncCloseClientOnOutputBufferLimitReached(redisClient *c) { redisAssert(c->reply_bytes < ULONG_MAX-(1024*64)); if (c->reply_bytes == 0 || c->flags & REDIS_CLOSE_ASAP) return; if (checkClientOutputBufferLimits(c)) { sds client = getClientInfoString(c); freeClientAsync(c); redisLog(REDIS_WARNING,"Client %s scheduled to be closed ASAP for overcoming of output buffer limits.", client); sdsfree(client); } } /* Helper function used by freeMemoryIfNeeded() in order to flush slaves * output buffers without returning control to the event loop. */ void flushSlavesOutputBuffers(void) { listIter li; listNode *ln; listRewind(server.slaves,&li); while((ln = listNext(&li))) { redisClient *slave = listNodeValue(ln); int events; events = aeGetFileEvents(server.el,slave->fd); if (events & AE_WRITABLE && slave->replstate == REDIS_REPL_ONLINE && listLength(slave->reply)) { sendReplyToClient(server.el,slave->fd,slave,0); } } } redis-2.6.16/src/object.c000066400000000000000000000443151220734223100151200ustar00rootroot00000000000000/* Redis Object implementation. * * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" #include #include robj *createObject(int type, void *ptr) { robj *o = zmalloc(sizeof(*o)); o->type = type; o->encoding = REDIS_ENCODING_RAW; o->ptr = ptr; o->refcount = 1; /* Set the LRU to the current lruclock (minutes resolution). */ o->lru = server.lruclock; return o; } robj *createStringObject(char *ptr, size_t len) { return createObject(REDIS_STRING,sdsnewlen(ptr,len)); } robj *createStringObjectFromLongLong(long long value) { robj *o; if (value >= 0 && value < REDIS_SHARED_INTEGERS) { incrRefCount(shared.integers[value]); o = shared.integers[value]; } else { if (value >= LONG_MIN && value <= LONG_MAX) { o = createObject(REDIS_STRING, NULL); o->encoding = REDIS_ENCODING_INT; o->ptr = (void*)((long)value); } else { o = createObject(REDIS_STRING,sdsfromlonglong(value)); } } return o; } /* Note: this function is defined into object.c since here it is where it * belongs but it is actually designed to be used just for INCRBYFLOAT */ robj *createStringObjectFromLongDouble(long double value) { char buf[256]; int len; /* We use 17 digits precision since with 128 bit floats that precision * after rounding is able to represent most small decimal numbers in a way * that is "non surprising" for the user (that is, most small decimal * numbers will be represented in a way that when converted back into * a string are exactly the same as what the user typed.) */ len = snprintf(buf,sizeof(buf),"%.17Lf", value); /* Now remove trailing zeroes after the '.' */ if (strchr(buf,'.') != NULL) { char *p = buf+len-1; while(*p == '0') { p--; len--; } if (*p == '.') len--; } return createStringObject(buf,len); } robj *dupStringObject(robj *o) { redisAssertWithInfo(NULL,o,o->encoding == REDIS_ENCODING_RAW); return createStringObject(o->ptr,sdslen(o->ptr)); } robj *createListObject(void) { list *l = listCreate(); robj *o = createObject(REDIS_LIST,l); listSetFreeMethod(l,decrRefCount); o->encoding = REDIS_ENCODING_LINKEDLIST; return o; } robj *createZiplistObject(void) { unsigned char *zl = ziplistNew(); robj *o = createObject(REDIS_LIST,zl); o->encoding = REDIS_ENCODING_ZIPLIST; return o; } robj *createSetObject(void) { dict *d = dictCreate(&setDictType,NULL); robj *o = createObject(REDIS_SET,d); o->encoding = REDIS_ENCODING_HT; return o; } robj *createIntsetObject(void) { intset *is = intsetNew(); robj *o = createObject(REDIS_SET,is); o->encoding = REDIS_ENCODING_INTSET; return o; } robj *createHashObject(void) { unsigned char *zl = ziplistNew(); robj *o = createObject(REDIS_HASH, zl); o->encoding = REDIS_ENCODING_ZIPLIST; return o; } robj *createZsetObject(void) { zset *zs = zmalloc(sizeof(*zs)); robj *o; zs->dict = dictCreate(&zsetDictType,NULL); zs->zsl = zslCreate(); o = createObject(REDIS_ZSET,zs); o->encoding = REDIS_ENCODING_SKIPLIST; return o; } robj *createZsetZiplistObject(void) { unsigned char *zl = ziplistNew(); robj *o = createObject(REDIS_ZSET,zl); o->encoding = REDIS_ENCODING_ZIPLIST; return o; } void freeStringObject(robj *o) { if (o->encoding == REDIS_ENCODING_RAW) { sdsfree(o->ptr); } } void freeListObject(robj *o) { switch (o->encoding) { case REDIS_ENCODING_LINKEDLIST: listRelease((list*) o->ptr); break; case REDIS_ENCODING_ZIPLIST: zfree(o->ptr); break; default: redisPanic("Unknown list encoding type"); } } void freeSetObject(robj *o) { switch (o->encoding) { case REDIS_ENCODING_HT: dictRelease((dict*) o->ptr); break; case REDIS_ENCODING_INTSET: zfree(o->ptr); break; default: redisPanic("Unknown set encoding type"); } } void freeZsetObject(robj *o) { zset *zs; switch (o->encoding) { case REDIS_ENCODING_SKIPLIST: zs = o->ptr; dictRelease(zs->dict); zslFree(zs->zsl); zfree(zs); break; case REDIS_ENCODING_ZIPLIST: zfree(o->ptr); break; default: redisPanic("Unknown sorted set encoding"); } } void freeHashObject(robj *o) { switch (o->encoding) { case REDIS_ENCODING_HT: dictRelease((dict*) o->ptr); break; case REDIS_ENCODING_ZIPLIST: zfree(o->ptr); break; default: redisPanic("Unknown hash encoding type"); break; } } void incrRefCount(robj *o) { o->refcount++; } void decrRefCount(void *obj) { robj *o = obj; if (o->refcount <= 0) redisPanic("decrRefCount against refcount <= 0"); if (o->refcount == 1) { switch(o->type) { case REDIS_STRING: freeStringObject(o); break; case REDIS_LIST: freeListObject(o); break; case REDIS_SET: freeSetObject(o); break; case REDIS_ZSET: freeZsetObject(o); break; case REDIS_HASH: freeHashObject(o); break; default: redisPanic("Unknown object type"); break; } zfree(o); } else { o->refcount--; } } /* This function set the ref count to zero without freeing the object. * It is useful in order to pass a new object to functions incrementing * the ref count of the received object. Example: * * functionThatWillIncrementRefCount(resetRefCount(CreateObject(...))); * * Otherwise you need to resort to the less elegant pattern: * * *obj = createObject(...); * functionThatWillIncrementRefCount(obj); * decrRefCount(obj); */ robj *resetRefCount(robj *obj) { obj->refcount = 0; return obj; } int checkType(redisClient *c, robj *o, int type) { if (o->type != type) { addReply(c,shared.wrongtypeerr); return 1; } return 0; } int isObjectRepresentableAsLongLong(robj *o, long long *llval) { redisAssertWithInfo(NULL,o,o->type == REDIS_STRING); if (o->encoding == REDIS_ENCODING_INT) { if (llval) *llval = (long) o->ptr; return REDIS_OK; } else { return string2ll(o->ptr,sdslen(o->ptr),llval) ? REDIS_OK : REDIS_ERR; } } /* Try to encode a string object in order to save space */ robj *tryObjectEncoding(robj *o) { long value; sds s = o->ptr; size_t len; if (o->encoding != REDIS_ENCODING_RAW) return o; /* Already encoded */ /* It's not safe to encode shared objects: shared objects can be shared * everywhere in the "object space" of Redis. Encoded objects can only * appear as "values" (and not, for instance, as keys) */ if (o->refcount > 1) return o; /* Currently we try to encode only strings */ redisAssertWithInfo(NULL,o,o->type == REDIS_STRING); /* Check if we can represent this string as a long integer */ len = sdslen(s); if (len > 21 || !string2l(s,len,&value)) { /* We can't encode the object... * * Do the last try, and at least optimize the SDS string inside * the string object to require little space, in case there * is more than 10% of free space at the end of the SDS string. * * We do that for larger strings, using the arbitrary value * of 32 bytes. This code was backported from the unstable branch * where this is performed when the object is too large to be * encoded as EMBSTR. */ if (len > 32 && o->encoding == REDIS_ENCODING_RAW && sdsavail(s) > len/10) { o->ptr = sdsRemoveFreeSpace(o->ptr); } /* Return the original object. */ return o; } /* Ok, this object can be encoded... * * Can I use a shared object? Only if the object is inside a given range * * Note that we also avoid using shared integers when maxmemory is used * because every object needs to have a private LRU field for the LRU * algorithm to work well. */ if (server.maxmemory == 0 && value >= 0 && value < REDIS_SHARED_INTEGERS) { decrRefCount(o); incrRefCount(shared.integers[value]); return shared.integers[value]; } else { o->encoding = REDIS_ENCODING_INT; sdsfree(o->ptr); o->ptr = (void*) value; return o; } } /* Get a decoded version of an encoded object (returned as a new object). * If the object is already raw-encoded just increment the ref count. */ robj *getDecodedObject(robj *o) { robj *dec; if (o->encoding == REDIS_ENCODING_RAW) { incrRefCount(o); return o; } if (o->type == REDIS_STRING && o->encoding == REDIS_ENCODING_INT) { char buf[32]; ll2string(buf,32,(long)o->ptr); dec = createStringObject(buf,strlen(buf)); return dec; } else { redisPanic("Unknown encoding type"); } } /* Compare two string objects via strcmp() or alike. * Note that the objects may be integer-encoded. In such a case we * use ll2string() to get a string representation of the numbers on the stack * and compare the strings, it's much faster than calling getDecodedObject(). * * Important note: if objects are not integer encoded, but binary-safe strings, * sdscmp() from sds.c will apply memcmp() so this function ca be considered * binary safe. */ int compareStringObjects(robj *a, robj *b) { redisAssertWithInfo(NULL,a,a->type == REDIS_STRING && b->type == REDIS_STRING); char bufa[128], bufb[128], *astr, *bstr; int bothsds = 1; if (a == b) return 0; if (a->encoding != REDIS_ENCODING_RAW) { ll2string(bufa,sizeof(bufa),(long) a->ptr); astr = bufa; bothsds = 0; } else { astr = a->ptr; } if (b->encoding != REDIS_ENCODING_RAW) { ll2string(bufb,sizeof(bufb),(long) b->ptr); bstr = bufb; bothsds = 0; } else { bstr = b->ptr; } return bothsds ? sdscmp(astr,bstr) : strcmp(astr,bstr); } /* Equal string objects return 1 if the two objects are the same from the * point of view of a string comparison, otherwise 0 is returned. Note that * this function is faster then checking for (compareStringObject(a,b) == 0) * because it can perform some more optimization. */ int equalStringObjects(robj *a, robj *b) { if (a->encoding != REDIS_ENCODING_RAW && b->encoding != REDIS_ENCODING_RAW){ return a->ptr == b->ptr; } else { return compareStringObjects(a,b) == 0; } } size_t stringObjectLen(robj *o) { redisAssertWithInfo(NULL,o,o->type == REDIS_STRING); if (o->encoding == REDIS_ENCODING_RAW) { return sdslen(o->ptr); } else { char buf[32]; return ll2string(buf,32,(long)o->ptr); } } int getDoubleFromObject(robj *o, double *target) { double value; char *eptr; if (o == NULL) { value = 0; } else { redisAssertWithInfo(NULL,o,o->type == REDIS_STRING); if (o->encoding == REDIS_ENCODING_RAW) { errno = 0; value = strtod(o->ptr, &eptr); if (isspace(((char*)o->ptr)[0]) || eptr[0] != '\0' || errno == ERANGE || isnan(value)) return REDIS_ERR; } else if (o->encoding == REDIS_ENCODING_INT) { value = (long)o->ptr; } else { redisPanic("Unknown string encoding"); } } *target = value; return REDIS_OK; } int getDoubleFromObjectOrReply(redisClient *c, robj *o, double *target, const char *msg) { double value; if (getDoubleFromObject(o, &value) != REDIS_OK) { if (msg != NULL) { addReplyError(c,(char*)msg); } else { addReplyError(c,"value is not a valid float"); } return REDIS_ERR; } *target = value; return REDIS_OK; } int getLongDoubleFromObject(robj *o, long double *target) { long double value; char *eptr; if (o == NULL) { value = 0; } else { redisAssertWithInfo(NULL,o,o->type == REDIS_STRING); if (o->encoding == REDIS_ENCODING_RAW) { errno = 0; value = strtold(o->ptr, &eptr); if (isspace(((char*)o->ptr)[0]) || eptr[0] != '\0' || errno == ERANGE || isnan(value)) return REDIS_ERR; } else if (o->encoding == REDIS_ENCODING_INT) { value = (long)o->ptr; } else { redisPanic("Unknown string encoding"); } } *target = value; return REDIS_OK; } int getLongDoubleFromObjectOrReply(redisClient *c, robj *o, long double *target, const char *msg) { long double value; if (getLongDoubleFromObject(o, &value) != REDIS_OK) { if (msg != NULL) { addReplyError(c,(char*)msg); } else { addReplyError(c,"value is not a valid float"); } return REDIS_ERR; } *target = value; return REDIS_OK; } int getLongLongFromObject(robj *o, long long *target) { long long value; char *eptr; if (o == NULL) { value = 0; } else { redisAssertWithInfo(NULL,o,o->type == REDIS_STRING); if (o->encoding == REDIS_ENCODING_RAW) { errno = 0; value = strtoll(o->ptr, &eptr, 10); if (isspace(((char*)o->ptr)[0]) || eptr[0] != '\0' || errno == ERANGE) return REDIS_ERR; } else if (o->encoding == REDIS_ENCODING_INT) { value = (long)o->ptr; } else { redisPanic("Unknown string encoding"); } } if (target) *target = value; return REDIS_OK; } int getLongLongFromObjectOrReply(redisClient *c, robj *o, long long *target, const char *msg) { long long value; if (getLongLongFromObject(o, &value) != REDIS_OK) { if (msg != NULL) { addReplyError(c,(char*)msg); } else { addReplyError(c,"value is not an integer or out of range"); } return REDIS_ERR; } *target = value; return REDIS_OK; } int getLongFromObjectOrReply(redisClient *c, robj *o, long *target, const char *msg) { long long value; if (getLongLongFromObjectOrReply(c, o, &value, msg) != REDIS_OK) return REDIS_ERR; if (value < LONG_MIN || value > LONG_MAX) { if (msg != NULL) { addReplyError(c,(char*)msg); } else { addReplyError(c,"value is out of range"); } return REDIS_ERR; } *target = value; return REDIS_OK; } char *strEncoding(int encoding) { switch(encoding) { case REDIS_ENCODING_RAW: return "raw"; case REDIS_ENCODING_INT: return "int"; case REDIS_ENCODING_HT: return "hashtable"; case REDIS_ENCODING_LINKEDLIST: return "linkedlist"; case REDIS_ENCODING_ZIPLIST: return "ziplist"; case REDIS_ENCODING_INTSET: return "intset"; case REDIS_ENCODING_SKIPLIST: return "skiplist"; default: return "unknown"; } } /* Given an object returns the min number of seconds the object was never * requested, using an approximated LRU algorithm. */ unsigned long estimateObjectIdleTime(robj *o) { if (server.lruclock >= o->lru) { return (server.lruclock - o->lru) * REDIS_LRU_CLOCK_RESOLUTION; } else { return ((REDIS_LRU_CLOCK_MAX - o->lru) + server.lruclock) * REDIS_LRU_CLOCK_RESOLUTION; } } /* This is an helper function for the DEBUG command. We need to lookup keys * without any modification of LRU or other parameters. */ robj *objectCommandLookup(redisClient *c, robj *key) { dictEntry *de; if ((de = dictFind(c->db->dict,key->ptr)) == NULL) return NULL; return (robj*) dictGetVal(de); } robj *objectCommandLookupOrReply(redisClient *c, robj *key, robj *reply) { robj *o = objectCommandLookup(c,key); if (!o) addReply(c, reply); return o; } /* Object command allows to inspect the internals of an Redis Object. * Usage: OBJECT ... arguments ... */ void objectCommand(redisClient *c) { robj *o; if (!strcasecmp(c->argv[1]->ptr,"refcount") && c->argc == 3) { if ((o = objectCommandLookupOrReply(c,c->argv[2],shared.nullbulk)) == NULL) return; addReplyLongLong(c,o->refcount); } else if (!strcasecmp(c->argv[1]->ptr,"encoding") && c->argc == 3) { if ((o = objectCommandLookupOrReply(c,c->argv[2],shared.nullbulk)) == NULL) return; addReplyBulkCString(c,strEncoding(o->encoding)); } else if (!strcasecmp(c->argv[1]->ptr,"idletime") && c->argc == 3) { if ((o = objectCommandLookupOrReply(c,c->argv[2],shared.nullbulk)) == NULL) return; addReplyLongLong(c,estimateObjectIdleTime(o)); } else { addReplyError(c,"Syntax error. Try OBJECT (refcount|encoding|idletime)"); } } redis-2.6.16/src/pqsort.c000066400000000000000000000133371220734223100152020ustar00rootroot00000000000000/* The following is the NetBSD libc qsort implementation modified in order to * support partial sorting of ranges for Redis. * * Copyright(C) 2009-2012 Salvatore Sanfilippo. All rights reserved. * * The original copyright notice follows. */ /* $NetBSD: qsort.c,v 1.19 2009/01/30 23:38:44 lukem Exp $ */ /*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include static inline char *med3 (char *, char *, char *, int (*)(const void *, const void *)); static inline void swapfunc (char *, char *, size_t, int); #define min(a, b) (a) < (b) ? a : b /* * Qsort routine from Bentley & McIlroy's "Engineering a Sort Function". */ #define swapcode(TYPE, parmi, parmj, n) { \ size_t i = (n) / sizeof (TYPE); \ TYPE *pi = (TYPE *)(void *)(parmi); \ TYPE *pj = (TYPE *)(void *)(parmj); \ do { \ TYPE t = *pi; \ *pi++ = *pj; \ *pj++ = t; \ } while (--i > 0); \ } #define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \ es % sizeof(long) ? 2 : es == sizeof(long)? 0 : 1; static inline void swapfunc(char *a, char *b, size_t n, int swaptype) { if (swaptype <= 1) swapcode(long, a, b, n) else swapcode(char, a, b, n) } #define swap(a, b) \ if (swaptype == 0) { \ long t = *(long *)(void *)(a); \ *(long *)(void *)(a) = *(long *)(void *)(b); \ *(long *)(void *)(b) = t; \ } else \ swapfunc(a, b, es, swaptype) #define vecswap(a, b, n) if ((n) > 0) swapfunc((a), (b), (size_t)(n), swaptype) static inline char * med3(char *a, char *b, char *c, int (*cmp) (const void *, const void *)) { return cmp(a, b) < 0 ? (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a )) :(cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c )); } static void _pqsort(void *a, size_t n, size_t es, int (*cmp) (const void *, const void *), void *lrange, void *rrange) { char *pa, *pb, *pc, *pd, *pl, *pm, *pn; size_t d, r; int swaptype, swap_cnt, cmp_result; loop: SWAPINIT(a, es); swap_cnt = 0; if (n < 7) { for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es) for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; pl -= es) swap(pl, pl - es); return; } pm = (char *) a + (n / 2) * es; if (n > 7) { pl = (char *) a; pn = (char *) a + (n - 1) * es; if (n > 40) { d = (n / 8) * es; pl = med3(pl, pl + d, pl + 2 * d, cmp); pm = med3(pm - d, pm, pm + d, cmp); pn = med3(pn - 2 * d, pn - d, pn, cmp); } pm = med3(pl, pm, pn, cmp); } swap(a, pm); pa = pb = (char *) a + es; pc = pd = (char *) a + (n - 1) * es; for (;;) { while (pb <= pc && (cmp_result = cmp(pb, a)) <= 0) { if (cmp_result == 0) { swap_cnt = 1; swap(pa, pb); pa += es; } pb += es; } while (pb <= pc && (cmp_result = cmp(pc, a)) >= 0) { if (cmp_result == 0) { swap_cnt = 1; swap(pc, pd); pd -= es; } pc -= es; } if (pb > pc) break; swap(pb, pc); swap_cnt = 1; pb += es; pc -= es; } if (swap_cnt == 0) { /* Switch to insertion sort */ for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es) for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; pl -= es) swap(pl, pl - es); return; } pn = (char *) a + n * es; r = min(pa - (char *) a, pb - pa); vecswap(a, pb - r, r); r = min((size_t)(pd - pc), pn - pd - es); vecswap(pb, pn - r, r); if ((r = pb - pa) > es) { void *_l = a, *_r = ((unsigned char*)a)+r-1; if (!((lrange < _l && rrange < _l) || (lrange > _r && rrange > _r))) _pqsort(a, r / es, es, cmp, lrange, rrange); } if ((r = pd - pc) > es) { void *_l, *_r; /* Iterate rather than recurse to save stack space */ a = pn - r; n = r / es; _l = a; _r = ((unsigned char*)a)+r-1; if (!((lrange < _l && rrange < _l) || (lrange > _r && rrange > _r))) goto loop; } /* qsort(pn - r, r / es, es, cmp);*/ } void pqsort(void *a, size_t n, size_t es, int (*cmp) (const void *, const void *), size_t lrange, size_t rrange) { _pqsort(a,n,es,cmp,((unsigned char*)a)+(lrange*es), ((unsigned char*)a)+((rrange+1)*es)-1); } redis-2.6.16/src/pqsort.h000066400000000000000000000036541220734223100152100ustar00rootroot00000000000000/* The following is the NetBSD libc qsort implementation modified in order to * support partial sorting of ranges for Redis. * * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * See the pqsort.c file for the original copyright notice. */ #ifndef __PQSORT_H #define __PQSORT_H void pqsort(void *a, size_t n, size_t es, int (*cmp) (const void *, const void *), size_t lrange, size_t rrange); #endif redis-2.6.16/src/pubsub.c000066400000000000000000000252321220734223100151470ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" /*----------------------------------------------------------------------------- * Pubsub low level API *----------------------------------------------------------------------------*/ void freePubsubPattern(void *p) { pubsubPattern *pat = p; decrRefCount(pat->pattern); zfree(pat); } int listMatchPubsubPattern(void *a, void *b) { pubsubPattern *pa = a, *pb = b; return (pa->client == pb->client) && (equalStringObjects(pa->pattern,pb->pattern)); } /* Subscribe a client to a channel. Returns 1 if the operation succeeded, or * 0 if the client was already subscribed to that channel. */ int pubsubSubscribeChannel(redisClient *c, robj *channel) { struct dictEntry *de; list *clients = NULL; int retval = 0; /* Add the channel to the client -> channels hash table */ if (dictAdd(c->pubsub_channels,channel,NULL) == DICT_OK) { retval = 1; incrRefCount(channel); /* Add the client to the channel -> list of clients hash table */ de = dictFind(server.pubsub_channels,channel); if (de == NULL) { clients = listCreate(); dictAdd(server.pubsub_channels,channel,clients); incrRefCount(channel); } else { clients = dictGetVal(de); } listAddNodeTail(clients,c); } /* Notify the client */ addReply(c,shared.mbulkhdr[3]); addReply(c,shared.subscribebulk); addReplyBulk(c,channel); addReplyLongLong(c,dictSize(c->pubsub_channels)+listLength(c->pubsub_patterns)); return retval; } /* Unsubscribe a client from a channel. Returns 1 if the operation succeeded, or * 0 if the client was not subscribed to the specified channel. */ int pubsubUnsubscribeChannel(redisClient *c, robj *channel, int notify) { struct dictEntry *de; list *clients; listNode *ln; int retval = 0; /* Remove the channel from the client -> channels hash table */ incrRefCount(channel); /* channel may be just a pointer to the same object we have in the hash tables. Protect it... */ if (dictDelete(c->pubsub_channels,channel) == DICT_OK) { retval = 1; /* Remove the client from the channel -> clients list hash table */ de = dictFind(server.pubsub_channels,channel); redisAssertWithInfo(c,NULL,de != NULL); clients = dictGetVal(de); ln = listSearchKey(clients,c); redisAssertWithInfo(c,NULL,ln != NULL); listDelNode(clients,ln); if (listLength(clients) == 0) { /* Free the list and associated hash entry at all if this was * the latest client, so that it will be possible to abuse * Redis PUBSUB creating millions of channels. */ dictDelete(server.pubsub_channels,channel); } } /* Notify the client */ if (notify) { addReply(c,shared.mbulkhdr[3]); addReply(c,shared.unsubscribebulk); addReplyBulk(c,channel); addReplyLongLong(c,dictSize(c->pubsub_channels)+ listLength(c->pubsub_patterns)); } decrRefCount(channel); /* it is finally safe to release it */ return retval; } /* Subscribe a client to a pattern. Returns 1 if the operation succeeded, or 0 if the client was already subscribed to that pattern. */ int pubsubSubscribePattern(redisClient *c, robj *pattern) { int retval = 0; if (listSearchKey(c->pubsub_patterns,pattern) == NULL) { retval = 1; pubsubPattern *pat; listAddNodeTail(c->pubsub_patterns,pattern); incrRefCount(pattern); pat = zmalloc(sizeof(*pat)); pat->pattern = getDecodedObject(pattern); pat->client = c; listAddNodeTail(server.pubsub_patterns,pat); } /* Notify the client */ addReply(c,shared.mbulkhdr[3]); addReply(c,shared.psubscribebulk); addReplyBulk(c,pattern); addReplyLongLong(c,dictSize(c->pubsub_channels)+listLength(c->pubsub_patterns)); return retval; } /* Unsubscribe a client from a channel. Returns 1 if the operation succeeded, or * 0 if the client was not subscribed to the specified channel. */ int pubsubUnsubscribePattern(redisClient *c, robj *pattern, int notify) { listNode *ln; pubsubPattern pat; int retval = 0; incrRefCount(pattern); /* Protect the object. May be the same we remove */ if ((ln = listSearchKey(c->pubsub_patterns,pattern)) != NULL) { retval = 1; listDelNode(c->pubsub_patterns,ln); pat.client = c; pat.pattern = pattern; ln = listSearchKey(server.pubsub_patterns,&pat); listDelNode(server.pubsub_patterns,ln); } /* Notify the client */ if (notify) { addReply(c,shared.mbulkhdr[3]); addReply(c,shared.punsubscribebulk); addReplyBulk(c,pattern); addReplyLongLong(c,dictSize(c->pubsub_channels)+ listLength(c->pubsub_patterns)); } decrRefCount(pattern); return retval; } /* Unsubscribe from all the channels. Return the number of channels the * client was subscribed from. */ int pubsubUnsubscribeAllChannels(redisClient *c, int notify) { dictIterator *di = dictGetSafeIterator(c->pubsub_channels); dictEntry *de; int count = 0; while((de = dictNext(di)) != NULL) { robj *channel = dictGetKey(de); count += pubsubUnsubscribeChannel(c,channel,notify); } /* We were subscribed to nothing? Still reply to the client. */ if (notify && count == 0) { addReply(c,shared.mbulkhdr[3]); addReply(c,shared.unsubscribebulk); addReply(c,shared.nullbulk); addReplyLongLong(c,dictSize(c->pubsub_channels)+ listLength(c->pubsub_patterns)); } dictReleaseIterator(di); return count; } /* Unsubscribe from all the patterns. Return the number of patterns the * client was subscribed from. */ int pubsubUnsubscribeAllPatterns(redisClient *c, int notify) { listNode *ln; listIter li; int count = 0; listRewind(c->pubsub_patterns,&li); while ((ln = listNext(&li)) != NULL) { robj *pattern = ln->value; count += pubsubUnsubscribePattern(c,pattern,notify); } if (notify && count == 0) { /* We were subscribed to nothing? Still reply to the client. */ addReply(c,shared.mbulkhdr[3]); addReply(c,shared.punsubscribebulk); addReply(c,shared.nullbulk); addReplyLongLong(c,dictSize(c->pubsub_channels)+ listLength(c->pubsub_patterns)); } return count; } /* Publish a message */ int pubsubPublishMessage(robj *channel, robj *message) { int receivers = 0; struct dictEntry *de; listNode *ln; listIter li; /* Send to clients listening for that channel */ de = dictFind(server.pubsub_channels,channel); if (de) { list *list = dictGetVal(de); listNode *ln; listIter li; listRewind(list,&li); while ((ln = listNext(&li)) != NULL) { redisClient *c = ln->value; addReply(c,shared.mbulkhdr[3]); addReply(c,shared.messagebulk); addReplyBulk(c,channel); addReplyBulk(c,message); receivers++; } } /* Send to clients listening to matching channels */ if (listLength(server.pubsub_patterns)) { listRewind(server.pubsub_patterns,&li); channel = getDecodedObject(channel); while ((ln = listNext(&li)) != NULL) { pubsubPattern *pat = ln->value; if (stringmatchlen((char*)pat->pattern->ptr, sdslen(pat->pattern->ptr), (char*)channel->ptr, sdslen(channel->ptr),0)) { addReply(pat->client,shared.mbulkhdr[4]); addReply(pat->client,shared.pmessagebulk); addReplyBulk(pat->client,pat->pattern); addReplyBulk(pat->client,channel); addReplyBulk(pat->client,message); receivers++; } } decrRefCount(channel); } return receivers; } /*----------------------------------------------------------------------------- * Pubsub commands implementation *----------------------------------------------------------------------------*/ void subscribeCommand(redisClient *c) { int j; for (j = 1; j < c->argc; j++) pubsubSubscribeChannel(c,c->argv[j]); } void unsubscribeCommand(redisClient *c) { if (c->argc == 1) { pubsubUnsubscribeAllChannels(c,1); } else { int j; for (j = 1; j < c->argc; j++) pubsubUnsubscribeChannel(c,c->argv[j],1); } } void psubscribeCommand(redisClient *c) { int j; for (j = 1; j < c->argc; j++) pubsubSubscribePattern(c,c->argv[j]); } void punsubscribeCommand(redisClient *c) { if (c->argc == 1) { pubsubUnsubscribeAllPatterns(c,1); } else { int j; for (j = 1; j < c->argc; j++) pubsubUnsubscribePattern(c,c->argv[j],1); } } void publishCommand(redisClient *c) { int receivers = pubsubPublishMessage(c->argv[1],c->argv[2]); addReplyLongLong(c,receivers); } redis-2.6.16/src/rand.c000066400000000000000000000074001220734223100145700ustar00rootroot00000000000000/* Pseudo random number generation functions derived from the drand48() * function obtained from pysam source code. * * This functions are used in order to replace the default math.random() * Lua implementation with something having exactly the same behavior * across different systems (by default Lua uses libc's rand() that is not * required to implement a specific PRNG generating the same sequence * in different systems if seeded with the same integer). * * The original code appears to be under the public domain. * I modified it removing the non needed functions and all the * 1960-style C coding stuff... * * ---------------------------------------------------------------------------- * * Copyright (c) 2010-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #define N 16 #define MASK ((1 << (N - 1)) + (1 << (N - 1)) - 1) #define LOW(x) ((unsigned)(x) & MASK) #define HIGH(x) LOW((x) >> N) #define MUL(x, y, z) { int32_t l = (long)(x) * (long)(y); \ (z)[0] = LOW(l); (z)[1] = HIGH(l); } #define CARRY(x, y) ((int32_t)(x) + (long)(y) > MASK) #define ADDEQU(x, y, z) (z = CARRY(x, (y)), x = LOW(x + (y))) #define X0 0x330E #define X1 0xABCD #define X2 0x1234 #define A0 0xE66D #define A1 0xDEEC #define A2 0x5 #define C 0xB #define SET3(x, x0, x1, x2) ((x)[0] = (x0), (x)[1] = (x1), (x)[2] = (x2)) #define SETLOW(x, y, n) SET3(x, LOW((y)[n]), LOW((y)[(n)+1]), LOW((y)[(n)+2])) #define SEED(x0, x1, x2) (SET3(x, x0, x1, x2), SET3(a, A0, A1, A2), c = C) #define REST(v) for (i = 0; i < 3; i++) { xsubi[i] = x[i]; x[i] = temp[i]; } \ return (v); #define HI_BIT (1L << (2 * N - 1)) static uint32_t x[3] = { X0, X1, X2 }, a[3] = { A0, A1, A2 }, c = C; static void next(); int32_t redisLrand48() { next(); return (((int32_t)x[2] << (N - 1)) + (x[1] >> 1)); } void redisSrand48(int32_t seedval) { SEED(X0, LOW(seedval), HIGH(seedval)); } static void next() { uint32_t p[2], q[2], r[2], carry0, carry1; MUL(a[0], x[0], p); ADDEQU(p[0], c, carry0); ADDEQU(p[1], carry0, carry1); MUL(a[0], x[1], q); ADDEQU(p[1], q[0], carry0); MUL(a[1], x[0], r); x[2] = LOW(carry0 + carry1 + CARRY(p[1], r[0]) + q[1] + r[1] + a[0] * x[2] + a[1] * x[1] + a[2] * x[0]); x[1] = LOW(p[1] + r[0]); x[0] = LOW(p[0]); } redis-2.6.16/src/rand.h000066400000000000000000000033431220734223100145770ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef REDIS_RANDOM_H #define REDIS_RANDOM_H int32_t redisLrand48(); void redisSrand48(int32_t seedval); #define REDIS_LRAND48_MAX INT32_MAX #endif redis-2.6.16/src/rdb.c000066400000000000000000001251011220734223100144120ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" #include "lzf.h" /* LZF compression library */ #include "zipmap.h" #include "endianconv.h" #include #include #include #include #include #include #include static int rdbWriteRaw(rio *rdb, void *p, size_t len) { if (rdb && rioWrite(rdb,p,len) == 0) return -1; return len; } int rdbSaveType(rio *rdb, unsigned char type) { return rdbWriteRaw(rdb,&type,1); } /* Load a "type" in RDB format, that is a one byte unsigned integer. * This function is not only used to load object types, but also special * "types" like the end-of-file type, the EXPIRE type, and so forth. */ int rdbLoadType(rio *rdb) { unsigned char type; if (rioRead(rdb,&type,1) == 0) return -1; return type; } time_t rdbLoadTime(rio *rdb) { int32_t t32; if (rioRead(rdb,&t32,4) == 0) return -1; return (time_t)t32; } int rdbSaveMillisecondTime(rio *rdb, long long t) { int64_t t64 = (int64_t) t; return rdbWriteRaw(rdb,&t64,8); } long long rdbLoadMillisecondTime(rio *rdb) { int64_t t64; if (rioRead(rdb,&t64,8) == 0) return -1; return (long long)t64; } /* Saves an encoded length. The first two bits in the first byte are used to * hold the encoding type. See the REDIS_RDB_* definitions for more information * on the types of encoding. */ int rdbSaveLen(rio *rdb, uint32_t len) { unsigned char buf[2]; size_t nwritten; if (len < (1<<6)) { /* Save a 6 bit len */ buf[0] = (len&0xFF)|(REDIS_RDB_6BITLEN<<6); if (rdbWriteRaw(rdb,buf,1) == -1) return -1; nwritten = 1; } else if (len < (1<<14)) { /* Save a 14 bit len */ buf[0] = ((len>>8)&0xFF)|(REDIS_RDB_14BITLEN<<6); buf[1] = len&0xFF; if (rdbWriteRaw(rdb,buf,2) == -1) return -1; nwritten = 2; } else { /* Save a 32 bit len */ buf[0] = (REDIS_RDB_32BITLEN<<6); if (rdbWriteRaw(rdb,buf,1) == -1) return -1; len = htonl(len); if (rdbWriteRaw(rdb,&len,4) == -4) return -1; nwritten = 1+4; } return nwritten; } /* Load an encoded length. The "isencoded" argument is set to 1 if the length * is not actually a length but an "encoding type". See the REDIS_RDB_ENC_* * definitions in rdb.h for more information. */ uint32_t rdbLoadLen(rio *rdb, int *isencoded) { unsigned char buf[2]; uint32_t len; int type; if (isencoded) *isencoded = 0; if (rioRead(rdb,buf,1) == 0) return REDIS_RDB_LENERR; type = (buf[0]&0xC0)>>6; if (type == REDIS_RDB_ENCVAL) { /* Read a 6 bit encoding type. */ if (isencoded) *isencoded = 1; return buf[0]&0x3F; } else if (type == REDIS_RDB_6BITLEN) { /* Read a 6 bit len. */ return buf[0]&0x3F; } else if (type == REDIS_RDB_14BITLEN) { /* Read a 14 bit len. */ if (rioRead(rdb,buf+1,1) == 0) return REDIS_RDB_LENERR; return ((buf[0]&0x3F)<<8)|buf[1]; } else { /* Read a 32 bit len. */ if (rioRead(rdb,&len,4) == 0) return REDIS_RDB_LENERR; return ntohl(len); } } /* Encodes the "value" argument as integer when it fits in the supported ranges * for encoded types. If the function successfully encodes the integer, the * representation is stored in the buffer pointer to by "enc" and the string * length is returned. Otherwise 0 is returned. */ int rdbEncodeInteger(long long value, unsigned char *enc) { if (value >= -(1<<7) && value <= (1<<7)-1) { enc[0] = (REDIS_RDB_ENCVAL<<6)|REDIS_RDB_ENC_INT8; enc[1] = value&0xFF; return 2; } else if (value >= -(1<<15) && value <= (1<<15)-1) { enc[0] = (REDIS_RDB_ENCVAL<<6)|REDIS_RDB_ENC_INT16; enc[1] = value&0xFF; enc[2] = (value>>8)&0xFF; return 3; } else if (value >= -((long long)1<<31) && value <= ((long long)1<<31)-1) { enc[0] = (REDIS_RDB_ENCVAL<<6)|REDIS_RDB_ENC_INT32; enc[1] = value&0xFF; enc[2] = (value>>8)&0xFF; enc[3] = (value>>16)&0xFF; enc[4] = (value>>24)&0xFF; return 5; } else { return 0; } } /* Loads an integer-encoded object with the specified encoding type "enctype". * If the "encode" argument is set the function may return an integer-encoded * string object, otherwise it always returns a raw string object. */ robj *rdbLoadIntegerObject(rio *rdb, int enctype, int encode) { unsigned char enc[4]; long long val; if (enctype == REDIS_RDB_ENC_INT8) { if (rioRead(rdb,enc,1) == 0) return NULL; val = (signed char)enc[0]; } else if (enctype == REDIS_RDB_ENC_INT16) { uint16_t v; if (rioRead(rdb,enc,2) == 0) return NULL; v = enc[0]|(enc[1]<<8); val = (int16_t)v; } else if (enctype == REDIS_RDB_ENC_INT32) { uint32_t v; if (rioRead(rdb,enc,4) == 0) return NULL; v = enc[0]|(enc[1]<<8)|(enc[2]<<16)|(enc[3]<<24); val = (int32_t)v; } else { val = 0; /* anti-warning */ redisPanic("Unknown RDB integer encoding type"); } if (encode) return createStringObjectFromLongLong(val); else return createObject(REDIS_STRING,sdsfromlonglong(val)); } /* String objects in the form "2391" "-100" without any space and with a * range of values that can fit in an 8, 16 or 32 bit signed value can be * encoded as integers to save space */ int rdbTryIntegerEncoding(char *s, size_t len, unsigned char *enc) { long long value; char *endptr, buf[32]; /* Check if it's possible to encode this value as a number */ value = strtoll(s, &endptr, 10); if (endptr[0] != '\0') return 0; ll2string(buf,32,value); /* If the number converted back into a string is not identical * then it's not possible to encode the string as integer */ if (strlen(buf) != len || memcmp(buf,s,len)) return 0; return rdbEncodeInteger(value,enc); } int rdbSaveLzfStringObject(rio *rdb, unsigned char *s, size_t len) { size_t comprlen, outlen; unsigned char byte; int n, nwritten = 0; void *out; /* We require at least four bytes compression for this to be worth it */ if (len <= 4) return 0; outlen = len-4; if ((out = zmalloc(outlen+1)) == NULL) return 0; comprlen = lzf_compress(s, len, out, outlen); if (comprlen == 0) { zfree(out); return 0; } /* Data compressed! Let's save it on disk */ byte = (REDIS_RDB_ENCVAL<<6)|REDIS_RDB_ENC_LZF; if ((n = rdbWriteRaw(rdb,&byte,1)) == -1) goto writeerr; nwritten += n; if ((n = rdbSaveLen(rdb,comprlen)) == -1) goto writeerr; nwritten += n; if ((n = rdbSaveLen(rdb,len)) == -1) goto writeerr; nwritten += n; if ((n = rdbWriteRaw(rdb,out,comprlen)) == -1) goto writeerr; nwritten += n; zfree(out); return nwritten; writeerr: zfree(out); return -1; } robj *rdbLoadLzfStringObject(rio *rdb) { unsigned int len, clen; unsigned char *c = NULL; sds val = NULL; if ((clen = rdbLoadLen(rdb,NULL)) == REDIS_RDB_LENERR) return NULL; if ((len = rdbLoadLen(rdb,NULL)) == REDIS_RDB_LENERR) return NULL; if ((c = zmalloc(clen)) == NULL) goto err; if ((val = sdsnewlen(NULL,len)) == NULL) goto err; if (rioRead(rdb,c,clen) == 0) goto err; if (lzf_decompress(c,clen,val,len) == 0) goto err; zfree(c); return createObject(REDIS_STRING,val); err: zfree(c); sdsfree(val); return NULL; } /* Save a string object as [len][data] on disk. If the object is a string * representation of an integer value we try to save it in a special form */ int rdbSaveRawString(rio *rdb, unsigned char *s, size_t len) { int enclen; int n, nwritten = 0; /* Try integer encoding */ if (len <= 11) { unsigned char buf[5]; if ((enclen = rdbTryIntegerEncoding((char*)s,len,buf)) > 0) { if (rdbWriteRaw(rdb,buf,enclen) == -1) return -1; return enclen; } } /* Try LZF compression - under 20 bytes it's unable to compress even * aaaaaaaaaaaaaaaaaa so skip it */ if (server.rdb_compression && len > 20) { n = rdbSaveLzfStringObject(rdb,s,len); if (n == -1) return -1; if (n > 0) return n; /* Return value of 0 means data can't be compressed, save the old way */ } /* Store verbatim */ if ((n = rdbSaveLen(rdb,len)) == -1) return -1; nwritten += n; if (len > 0) { if (rdbWriteRaw(rdb,s,len) == -1) return -1; nwritten += len; } return nwritten; } /* Save a long long value as either an encoded string or a string. */ int rdbSaveLongLongAsStringObject(rio *rdb, long long value) { unsigned char buf[32]; int n, nwritten = 0; int enclen = rdbEncodeInteger(value,buf); if (enclen > 0) { return rdbWriteRaw(rdb,buf,enclen); } else { /* Encode as string */ enclen = ll2string((char*)buf,32,value); redisAssert(enclen < 32); if ((n = rdbSaveLen(rdb,enclen)) == -1) return -1; nwritten += n; if ((n = rdbWriteRaw(rdb,buf,enclen)) == -1) return -1; nwritten += n; } return nwritten; } /* Like rdbSaveStringObjectRaw() but handle encoded objects */ int rdbSaveStringObject(rio *rdb, robj *obj) { /* Avoid to decode the object, then encode it again, if the * object is already integer encoded. */ if (obj->encoding == REDIS_ENCODING_INT) { return rdbSaveLongLongAsStringObject(rdb,(long)obj->ptr); } else { redisAssertWithInfo(NULL,obj,obj->encoding == REDIS_ENCODING_RAW); return rdbSaveRawString(rdb,obj->ptr,sdslen(obj->ptr)); } } robj *rdbGenericLoadStringObject(rio *rdb, int encode) { int isencoded; uint32_t len; sds val; len = rdbLoadLen(rdb,&isencoded); if (isencoded) { switch(len) { case REDIS_RDB_ENC_INT8: case REDIS_RDB_ENC_INT16: case REDIS_RDB_ENC_INT32: return rdbLoadIntegerObject(rdb,len,encode); case REDIS_RDB_ENC_LZF: return rdbLoadLzfStringObject(rdb); default: redisPanic("Unknown RDB encoding type"); } } if (len == REDIS_RDB_LENERR) return NULL; val = sdsnewlen(NULL,len); if (len && rioRead(rdb,val,len) == 0) { sdsfree(val); return NULL; } return createObject(REDIS_STRING,val); } robj *rdbLoadStringObject(rio *rdb) { return rdbGenericLoadStringObject(rdb,0); } robj *rdbLoadEncodedStringObject(rio *rdb) { return rdbGenericLoadStringObject(rdb,1); } /* Save a double value. Doubles are saved as strings prefixed by an unsigned * 8 bit integer specifying the length of the representation. * This 8 bit integer has special values in order to specify the following * conditions: * 253: not a number * 254: + inf * 255: - inf */ int rdbSaveDoubleValue(rio *rdb, double val) { unsigned char buf[128]; int len; if (isnan(val)) { buf[0] = 253; len = 1; } else if (!isfinite(val)) { len = 1; buf[0] = (val < 0) ? 255 : 254; } else { #if (DBL_MANT_DIG >= 52) && (LLONG_MAX == 0x7fffffffffffffffLL) /* Check if the float is in a safe range to be casted into a * long long. We are assuming that long long is 64 bit here. * Also we are assuming that there are no implementations around where * double has precision < 52 bit. * * Under this assumptions we test if a double is inside an interval * where casting to long long is safe. Then using two castings we * make sure the decimal part is zero. If all this is true we use * integer printing function that is much faster. */ double min = -4503599627370495; /* (2^52)-1 */ double max = 4503599627370496; /* -(2^52) */ if (val > min && val < max && val == ((double)((long long)val))) ll2string((char*)buf+1,sizeof(buf),(long long)val); else #endif snprintf((char*)buf+1,sizeof(buf)-1,"%.17g",val); buf[0] = strlen((char*)buf+1); len = buf[0]+1; } return rdbWriteRaw(rdb,buf,len); } /* For information about double serialization check rdbSaveDoubleValue() */ int rdbLoadDoubleValue(rio *rdb, double *val) { char buf[128]; unsigned char len; if (rioRead(rdb,&len,1) == 0) return -1; switch(len) { case 255: *val = R_NegInf; return 0; case 254: *val = R_PosInf; return 0; case 253: *val = R_Nan; return 0; default: if (rioRead(rdb,buf,len) == 0) return -1; buf[len] = '\0'; sscanf(buf, "%lg", val); return 0; } } /* Save the object type of object "o". */ int rdbSaveObjectType(rio *rdb, robj *o) { switch (o->type) { case REDIS_STRING: return rdbSaveType(rdb,REDIS_RDB_TYPE_STRING); case REDIS_LIST: if (o->encoding == REDIS_ENCODING_ZIPLIST) return rdbSaveType(rdb,REDIS_RDB_TYPE_LIST_ZIPLIST); else if (o->encoding == REDIS_ENCODING_LINKEDLIST) return rdbSaveType(rdb,REDIS_RDB_TYPE_LIST); else redisPanic("Unknown list encoding"); case REDIS_SET: if (o->encoding == REDIS_ENCODING_INTSET) return rdbSaveType(rdb,REDIS_RDB_TYPE_SET_INTSET); else if (o->encoding == REDIS_ENCODING_HT) return rdbSaveType(rdb,REDIS_RDB_TYPE_SET); else redisPanic("Unknown set encoding"); case REDIS_ZSET: if (o->encoding == REDIS_ENCODING_ZIPLIST) return rdbSaveType(rdb,REDIS_RDB_TYPE_ZSET_ZIPLIST); else if (o->encoding == REDIS_ENCODING_SKIPLIST) return rdbSaveType(rdb,REDIS_RDB_TYPE_ZSET); else redisPanic("Unknown sorted set encoding"); case REDIS_HASH: if (o->encoding == REDIS_ENCODING_ZIPLIST) return rdbSaveType(rdb,REDIS_RDB_TYPE_HASH_ZIPLIST); else if (o->encoding == REDIS_ENCODING_HT) return rdbSaveType(rdb,REDIS_RDB_TYPE_HASH); else redisPanic("Unknown hash encoding"); default: redisPanic("Unknown object type"); } return -1; /* avoid warning */ } /* Use rdbLoadType() to load a TYPE in RDB format, but returns -1 if the * type is not specifically a valid Object Type. */ int rdbLoadObjectType(rio *rdb) { int type; if ((type = rdbLoadType(rdb)) == -1) return -1; if (!rdbIsObjectType(type)) return -1; return type; } /* Save a Redis object. Returns -1 on error, 0 on success. */ int rdbSaveObject(rio *rdb, robj *o) { int n, nwritten = 0; if (o->type == REDIS_STRING) { /* Save a string value */ if ((n = rdbSaveStringObject(rdb,o)) == -1) return -1; nwritten += n; } else if (o->type == REDIS_LIST) { /* Save a list value */ if (o->encoding == REDIS_ENCODING_ZIPLIST) { size_t l = ziplistBlobLen((unsigned char*)o->ptr); if ((n = rdbSaveRawString(rdb,o->ptr,l)) == -1) return -1; nwritten += n; } else if (o->encoding == REDIS_ENCODING_LINKEDLIST) { list *list = o->ptr; listIter li; listNode *ln; if ((n = rdbSaveLen(rdb,listLength(list))) == -1) return -1; nwritten += n; listRewind(list,&li); while((ln = listNext(&li))) { robj *eleobj = listNodeValue(ln); if ((n = rdbSaveStringObject(rdb,eleobj)) == -1) return -1; nwritten += n; } } else { redisPanic("Unknown list encoding"); } } else if (o->type == REDIS_SET) { /* Save a set value */ if (o->encoding == REDIS_ENCODING_HT) { dict *set = o->ptr; dictIterator *di = dictGetIterator(set); dictEntry *de; if ((n = rdbSaveLen(rdb,dictSize(set))) == -1) return -1; nwritten += n; while((de = dictNext(di)) != NULL) { robj *eleobj = dictGetKey(de); if ((n = rdbSaveStringObject(rdb,eleobj)) == -1) return -1; nwritten += n; } dictReleaseIterator(di); } else if (o->encoding == REDIS_ENCODING_INTSET) { size_t l = intsetBlobLen((intset*)o->ptr); if ((n = rdbSaveRawString(rdb,o->ptr,l)) == -1) return -1; nwritten += n; } else { redisPanic("Unknown set encoding"); } } else if (o->type == REDIS_ZSET) { /* Save a sorted set value */ if (o->encoding == REDIS_ENCODING_ZIPLIST) { size_t l = ziplistBlobLen((unsigned char*)o->ptr); if ((n = rdbSaveRawString(rdb,o->ptr,l)) == -1) return -1; nwritten += n; } else if (o->encoding == REDIS_ENCODING_SKIPLIST) { zset *zs = o->ptr; dictIterator *di = dictGetIterator(zs->dict); dictEntry *de; if ((n = rdbSaveLen(rdb,dictSize(zs->dict))) == -1) return -1; nwritten += n; while((de = dictNext(di)) != NULL) { robj *eleobj = dictGetKey(de); double *score = dictGetVal(de); if ((n = rdbSaveStringObject(rdb,eleobj)) == -1) return -1; nwritten += n; if ((n = rdbSaveDoubleValue(rdb,*score)) == -1) return -1; nwritten += n; } dictReleaseIterator(di); } else { redisPanic("Unknown sorted set encoding"); } } else if (o->type == REDIS_HASH) { /* Save a hash value */ if (o->encoding == REDIS_ENCODING_ZIPLIST) { size_t l = ziplistBlobLen((unsigned char*)o->ptr); if ((n = rdbSaveRawString(rdb,o->ptr,l)) == -1) return -1; nwritten += n; } else if (o->encoding == REDIS_ENCODING_HT) { dictIterator *di = dictGetIterator(o->ptr); dictEntry *de; if ((n = rdbSaveLen(rdb,dictSize((dict*)o->ptr))) == -1) return -1; nwritten += n; while((de = dictNext(di)) != NULL) { robj *key = dictGetKey(de); robj *val = dictGetVal(de); if ((n = rdbSaveStringObject(rdb,key)) == -1) return -1; nwritten += n; if ((n = rdbSaveStringObject(rdb,val)) == -1) return -1; nwritten += n; } dictReleaseIterator(di); } else { redisPanic("Unknown hash encoding"); } } else { redisPanic("Unknown object type"); } return nwritten; } /* Return the length the object will have on disk if saved with * the rdbSaveObject() function. Currently we use a trick to get * this length with very little changes to the code. In the future * we could switch to a faster solution. */ off_t rdbSavedObjectLen(robj *o) { int len = rdbSaveObject(NULL,o); redisAssertWithInfo(NULL,o,len != -1); return len; } /* Save a key-value pair, with expire time, type, key, value. * On error -1 is returned. * On success if the key was actually saved 1 is returned, otherwise 0 * is returned (the key was already expired). */ int rdbSaveKeyValuePair(rio *rdb, robj *key, robj *val, long long expiretime, long long now) { /* Save the expire time */ if (expiretime != -1) { /* If this key is already expired skip it */ if (expiretime < now) return 0; if (rdbSaveType(rdb,REDIS_RDB_OPCODE_EXPIRETIME_MS) == -1) return -1; if (rdbSaveMillisecondTime(rdb,expiretime) == -1) return -1; } /* Save type, key, value */ if (rdbSaveObjectType(rdb,val) == -1) return -1; if (rdbSaveStringObject(rdb,key) == -1) return -1; if (rdbSaveObject(rdb,val) == -1) return -1; return 1; } /* Save the DB on disk. Return REDIS_ERR on error, REDIS_OK on success */ int rdbSave(char *filename) { dictIterator *di = NULL; dictEntry *de; char tmpfile[256]; char magic[10]; int j; long long now = mstime(); FILE *fp; rio rdb; uint64_t cksum; snprintf(tmpfile,256,"temp-%d.rdb", (int) getpid()); fp = fopen(tmpfile,"w"); if (!fp) { redisLog(REDIS_WARNING, "Failed opening .rdb for saving: %s", strerror(errno)); return REDIS_ERR; } rioInitWithFile(&rdb,fp); if (server.rdb_checksum) rdb.update_cksum = rioGenericUpdateChecksum; snprintf(magic,sizeof(magic),"REDIS%04d",REDIS_RDB_VERSION); if (rdbWriteRaw(&rdb,magic,9) == -1) goto werr; for (j = 0; j < server.dbnum; j++) { redisDb *db = server.db+j; dict *d = db->dict; if (dictSize(d) == 0) continue; di = dictGetSafeIterator(d); if (!di) { fclose(fp); return REDIS_ERR; } /* Write the SELECT DB opcode */ if (rdbSaveType(&rdb,REDIS_RDB_OPCODE_SELECTDB) == -1) goto werr; if (rdbSaveLen(&rdb,j) == -1) goto werr; /* Iterate this DB writing every entry */ while((de = dictNext(di)) != NULL) { sds keystr = dictGetKey(de); robj key, *o = dictGetVal(de); long long expire; initStaticStringObject(key,keystr); expire = getExpire(db,&key); if (rdbSaveKeyValuePair(&rdb,&key,o,expire,now) == -1) goto werr; } dictReleaseIterator(di); } di = NULL; /* So that we don't release it again on error. */ /* EOF opcode */ if (rdbSaveType(&rdb,REDIS_RDB_OPCODE_EOF) == -1) goto werr; /* CRC64 checksum. It will be zero if checksum computation is disabled, the * loading code skips the check in this case. */ cksum = rdb.cksum; memrev64ifbe(&cksum); rioWrite(&rdb,&cksum,8); /* Make sure data will not remain on the OS's output buffers */ fflush(fp); fsync(fileno(fp)); fclose(fp); /* Use RENAME to make sure the DB file is changed atomically only * if the generate DB file is ok. */ if (rename(tmpfile,filename) == -1) { redisLog(REDIS_WARNING,"Error moving temp DB file on the final destination: %s", strerror(errno)); unlink(tmpfile); return REDIS_ERR; } redisLog(REDIS_NOTICE,"DB saved on disk"); server.dirty = 0; server.lastsave = time(NULL); server.lastbgsave_status = REDIS_OK; return REDIS_OK; werr: fclose(fp); unlink(tmpfile); redisLog(REDIS_WARNING,"Write error saving DB on disk: %s", strerror(errno)); if (di) dictReleaseIterator(di); return REDIS_ERR; } int rdbSaveBackground(char *filename) { pid_t childpid; long long start; if (server.rdb_child_pid != -1) return REDIS_ERR; server.dirty_before_bgsave = server.dirty; server.lastbgsave_try = time(NULL); start = ustime(); if ((childpid = fork()) == 0) { int retval; /* Child */ if (server.ipfd > 0) close(server.ipfd); if (server.sofd > 0) close(server.sofd); retval = rdbSave(filename); if (retval == REDIS_OK) { size_t private_dirty = zmalloc_get_private_dirty(); if (private_dirty) { redisLog(REDIS_NOTICE, "RDB: %zu MB of memory used by copy-on-write", private_dirty/(1024*1024)); } } exitFromChild((retval == REDIS_OK) ? 0 : 1); } else { /* Parent */ server.stat_fork_time = ustime()-start; if (childpid == -1) { server.lastbgsave_status = REDIS_ERR; redisLog(REDIS_WARNING,"Can't save in background: fork: %s", strerror(errno)); return REDIS_ERR; } redisLog(REDIS_NOTICE,"Background saving started by pid %d",childpid); server.rdb_save_time_start = time(NULL); server.rdb_child_pid = childpid; updateDictResizePolicy(); return REDIS_OK; } return REDIS_OK; /* unreached */ } void rdbRemoveTempFile(pid_t childpid) { char tmpfile[256]; snprintf(tmpfile,256,"temp-%d.rdb", (int) childpid); unlink(tmpfile); } /* Load a Redis object of the specified type from the specified file. * On success a newly allocated object is returned, otherwise NULL. */ robj *rdbLoadObject(int rdbtype, rio *rdb) { robj *o, *ele, *dec; size_t len; unsigned int i; redisLog(REDIS_DEBUG,"LOADING OBJECT %d (at %d)\n",rdbtype,rioTell(rdb)); if (rdbtype == REDIS_RDB_TYPE_STRING) { /* Read string value */ if ((o = rdbLoadEncodedStringObject(rdb)) == NULL) return NULL; o = tryObjectEncoding(o); } else if (rdbtype == REDIS_RDB_TYPE_LIST) { /* Read list value */ if ((len = rdbLoadLen(rdb,NULL)) == REDIS_RDB_LENERR) return NULL; /* Use a real list when there are too many entries */ if (len > server.list_max_ziplist_entries) { o = createListObject(); } else { o = createZiplistObject(); } /* Load every single element of the list */ while(len--) { if ((ele = rdbLoadEncodedStringObject(rdb)) == NULL) return NULL; /* If we are using a ziplist and the value is too big, convert * the object to a real list. */ if (o->encoding == REDIS_ENCODING_ZIPLIST && ele->encoding == REDIS_ENCODING_RAW && sdslen(ele->ptr) > server.list_max_ziplist_value) listTypeConvert(o,REDIS_ENCODING_LINKEDLIST); if (o->encoding == REDIS_ENCODING_ZIPLIST) { dec = getDecodedObject(ele); o->ptr = ziplistPush(o->ptr,dec->ptr,sdslen(dec->ptr),REDIS_TAIL); decrRefCount(dec); decrRefCount(ele); } else { ele = tryObjectEncoding(ele); listAddNodeTail(o->ptr,ele); } } } else if (rdbtype == REDIS_RDB_TYPE_SET) { /* Read list/set value */ if ((len = rdbLoadLen(rdb,NULL)) == REDIS_RDB_LENERR) return NULL; /* Use a regular set when there are too many entries. */ if (len > server.set_max_intset_entries) { o = createSetObject(); /* It's faster to expand the dict to the right size asap in order * to avoid rehashing */ if (len > DICT_HT_INITIAL_SIZE) dictExpand(o->ptr,len); } else { o = createIntsetObject(); } /* Load every single element of the list/set */ for (i = 0; i < len; i++) { long long llval; if ((ele = rdbLoadEncodedStringObject(rdb)) == NULL) return NULL; ele = tryObjectEncoding(ele); if (o->encoding == REDIS_ENCODING_INTSET) { /* Fetch integer value from element */ if (isObjectRepresentableAsLongLong(ele,&llval) == REDIS_OK) { o->ptr = intsetAdd(o->ptr,llval,NULL); } else { setTypeConvert(o,REDIS_ENCODING_HT); dictExpand(o->ptr,len); } } /* This will also be called when the set was just converted * to regular hash table encoded set */ if (o->encoding == REDIS_ENCODING_HT) { dictAdd((dict*)o->ptr,ele,NULL); } else { decrRefCount(ele); } } } else if (rdbtype == REDIS_RDB_TYPE_ZSET) { /* Read list/set value */ size_t zsetlen; size_t maxelelen = 0; zset *zs; if ((zsetlen = rdbLoadLen(rdb,NULL)) == REDIS_RDB_LENERR) return NULL; o = createZsetObject(); zs = o->ptr; /* Load every single element of the list/set */ while(zsetlen--) { robj *ele; double score; zskiplistNode *znode; if ((ele = rdbLoadEncodedStringObject(rdb)) == NULL) return NULL; ele = tryObjectEncoding(ele); if (rdbLoadDoubleValue(rdb,&score) == -1) return NULL; /* Don't care about integer-encoded strings. */ if (ele->encoding == REDIS_ENCODING_RAW && sdslen(ele->ptr) > maxelelen) maxelelen = sdslen(ele->ptr); znode = zslInsert(zs->zsl,score,ele); dictAdd(zs->dict,ele,&znode->score); incrRefCount(ele); /* added to skiplist */ } /* Convert *after* loading, since sorted sets are not stored ordered. */ if (zsetLength(o) <= server.zset_max_ziplist_entries && maxelelen <= server.zset_max_ziplist_value) zsetConvert(o,REDIS_ENCODING_ZIPLIST); } else if (rdbtype == REDIS_RDB_TYPE_HASH) { size_t len; int ret; len = rdbLoadLen(rdb, NULL); if (len == REDIS_RDB_LENERR) return NULL; o = createHashObject(); /* Too many entries? Use an hash table. */ if (len > server.hash_max_ziplist_entries) hashTypeConvert(o, REDIS_ENCODING_HT); /* Load every field and value into the ziplist */ while (o->encoding == REDIS_ENCODING_ZIPLIST && len > 0) { robj *field, *value; len--; /* Load raw strings */ field = rdbLoadStringObject(rdb); if (field == NULL) return NULL; redisAssert(field->encoding == REDIS_ENCODING_RAW); value = rdbLoadStringObject(rdb); if (value == NULL) return NULL; redisAssert(field->encoding == REDIS_ENCODING_RAW); /* Add pair to ziplist */ o->ptr = ziplistPush(o->ptr, field->ptr, sdslen(field->ptr), ZIPLIST_TAIL); o->ptr = ziplistPush(o->ptr, value->ptr, sdslen(value->ptr), ZIPLIST_TAIL); /* Convert to hash table if size threshold is exceeded */ if (sdslen(field->ptr) > server.hash_max_ziplist_value || sdslen(value->ptr) > server.hash_max_ziplist_value) { decrRefCount(field); decrRefCount(value); hashTypeConvert(o, REDIS_ENCODING_HT); break; } decrRefCount(field); decrRefCount(value); } /* Load remaining fields and values into the hash table */ while (o->encoding == REDIS_ENCODING_HT && len > 0) { robj *field, *value; len--; /* Load encoded strings */ field = rdbLoadEncodedStringObject(rdb); if (field == NULL) return NULL; value = rdbLoadEncodedStringObject(rdb); if (value == NULL) return NULL; field = tryObjectEncoding(field); value = tryObjectEncoding(value); /* Add pair to hash table */ ret = dictAdd((dict*)o->ptr, field, value); redisAssert(ret == REDIS_OK); } /* All pairs should be read by now */ redisAssert(len == 0); } else if (rdbtype == REDIS_RDB_TYPE_HASH_ZIPMAP || rdbtype == REDIS_RDB_TYPE_LIST_ZIPLIST || rdbtype == REDIS_RDB_TYPE_SET_INTSET || rdbtype == REDIS_RDB_TYPE_ZSET_ZIPLIST || rdbtype == REDIS_RDB_TYPE_HASH_ZIPLIST) { robj *aux = rdbLoadStringObject(rdb); if (aux == NULL) return NULL; o = createObject(REDIS_STRING,NULL); /* string is just placeholder */ o->ptr = zmalloc(sdslen(aux->ptr)); memcpy(o->ptr,aux->ptr,sdslen(aux->ptr)); decrRefCount(aux); /* Fix the object encoding, and make sure to convert the encoded * data type into the base type if accordingly to the current * configuration there are too many elements in the encoded data * type. Note that we only check the length and not max element * size as this is an O(N) scan. Eventually everything will get * converted. */ switch(rdbtype) { case REDIS_RDB_TYPE_HASH_ZIPMAP: /* Convert to ziplist encoded hash. This must be deprecated * when loading dumps created by Redis 2.4 gets deprecated. */ { unsigned char *zl = ziplistNew(); unsigned char *zi = zipmapRewind(o->ptr); unsigned char *fstr, *vstr; unsigned int flen, vlen; unsigned int maxlen = 0; while ((zi = zipmapNext(zi, &fstr, &flen, &vstr, &vlen)) != NULL) { if (flen > maxlen) maxlen = flen; if (vlen > maxlen) maxlen = vlen; zl = ziplistPush(zl, fstr, flen, ZIPLIST_TAIL); zl = ziplistPush(zl, vstr, vlen, ZIPLIST_TAIL); } zfree(o->ptr); o->ptr = zl; o->type = REDIS_HASH; o->encoding = REDIS_ENCODING_ZIPLIST; if (hashTypeLength(o) > server.hash_max_ziplist_entries || maxlen > server.hash_max_ziplist_value) { hashTypeConvert(o, REDIS_ENCODING_HT); } } break; case REDIS_RDB_TYPE_LIST_ZIPLIST: o->type = REDIS_LIST; o->encoding = REDIS_ENCODING_ZIPLIST; if (ziplistLen(o->ptr) > server.list_max_ziplist_entries) listTypeConvert(o,REDIS_ENCODING_LINKEDLIST); break; case REDIS_RDB_TYPE_SET_INTSET: o->type = REDIS_SET; o->encoding = REDIS_ENCODING_INTSET; if (intsetLen(o->ptr) > server.set_max_intset_entries) setTypeConvert(o,REDIS_ENCODING_HT); break; case REDIS_RDB_TYPE_ZSET_ZIPLIST: o->type = REDIS_ZSET; o->encoding = REDIS_ENCODING_ZIPLIST; if (zsetLength(o) > server.zset_max_ziplist_entries) zsetConvert(o,REDIS_ENCODING_SKIPLIST); break; case REDIS_RDB_TYPE_HASH_ZIPLIST: o->type = REDIS_HASH; o->encoding = REDIS_ENCODING_ZIPLIST; if (hashTypeLength(o) > server.hash_max_ziplist_entries) hashTypeConvert(o, REDIS_ENCODING_HT); break; default: redisPanic("Unknown encoding"); break; } } else { redisPanic("Unknown object type"); } return o; } /* Mark that we are loading in the global state and setup the fields * needed to provide loading stats. */ void startLoading(FILE *fp) { struct stat sb; /* Load the DB */ server.loading = 1; server.loading_start_time = time(NULL); if (fstat(fileno(fp), &sb) == -1) { server.loading_total_bytes = 1; /* just to avoid division by zero */ } else { server.loading_total_bytes = sb.st_size; } } /* Refresh the loading progress info */ void loadingProgress(off_t pos) { server.loading_loaded_bytes = pos; if (server.stat_peak_memory < zmalloc_used_memory()) server.stat_peak_memory = zmalloc_used_memory(); } /* Loading finished */ void stopLoading(void) { server.loading = 0; } int rdbLoad(char *filename) { uint32_t dbid; int type, rdbver; redisDb *db = server.db+0; char buf[1024]; long long expiretime, now = mstime(); long loops = 0; FILE *fp; rio rdb; if ((fp = fopen(filename,"r")) == NULL) return REDIS_ERR; rioInitWithFile(&rdb,fp); if (server.rdb_checksum) rdb.update_cksum = rioGenericUpdateChecksum; if (rioRead(&rdb,buf,9) == 0) goto eoferr; buf[9] = '\0'; if (memcmp(buf,"REDIS",5) != 0) { fclose(fp); redisLog(REDIS_WARNING,"Wrong signature trying to load DB from file"); errno = EINVAL; return REDIS_ERR; } rdbver = atoi(buf+5); if (rdbver < 1 || rdbver > REDIS_RDB_VERSION) { fclose(fp); redisLog(REDIS_WARNING,"Can't handle RDB format version %d",rdbver); errno = EINVAL; return REDIS_ERR; } startLoading(fp); while(1) { robj *key, *val; expiretime = -1; /* Serve the clients from time to time */ if (!(loops++ % 1000)) { loadingProgress(rioTell(&rdb)); aeProcessEvents(server.el, AE_FILE_EVENTS|AE_DONT_WAIT); } /* Read type. */ if ((type = rdbLoadType(&rdb)) == -1) goto eoferr; if (type == REDIS_RDB_OPCODE_EXPIRETIME) { if ((expiretime = rdbLoadTime(&rdb)) == -1) goto eoferr; /* We read the time so we need to read the object type again. */ if ((type = rdbLoadType(&rdb)) == -1) goto eoferr; /* the EXPIRETIME opcode specifies time in seconds, so convert * into milliseconds. */ expiretime *= 1000; } else if (type == REDIS_RDB_OPCODE_EXPIRETIME_MS) { /* Milliseconds precision expire times introduced with RDB * version 3. */ if ((expiretime = rdbLoadMillisecondTime(&rdb)) == -1) goto eoferr; /* We read the time so we need to read the object type again. */ if ((type = rdbLoadType(&rdb)) == -1) goto eoferr; } if (type == REDIS_RDB_OPCODE_EOF) break; /* Handle SELECT DB opcode as a special case */ if (type == REDIS_RDB_OPCODE_SELECTDB) { if ((dbid = rdbLoadLen(&rdb,NULL)) == REDIS_RDB_LENERR) goto eoferr; if (dbid >= (unsigned)server.dbnum) { redisLog(REDIS_WARNING,"FATAL: Data file was created with a Redis server configured to handle more than %d databases. Exiting\n", server.dbnum); exit(1); } db = server.db+dbid; continue; } /* Read key */ if ((key = rdbLoadStringObject(&rdb)) == NULL) goto eoferr; /* Read value */ if ((val = rdbLoadObject(type,&rdb)) == NULL) goto eoferr; /* Check if the key already expired. This function is used when loading * an RDB file from disk, either at startup, or when an RDB was * received from the master. In the latter case, the master is * responsible for key expiry. If we would expire keys here, the * snapshot taken by the master may not be reflected on the slave. */ if (server.masterhost == NULL && expiretime != -1 && expiretime < now) { decrRefCount(key); decrRefCount(val); continue; } /* Add the new object in the hash table */ dbAdd(db,key,val); /* Set the expire time if needed */ if (expiretime != -1) setExpire(db,key,expiretime); decrRefCount(key); } /* Verify the checksum if RDB version is >= 5 */ if (rdbver >= 5 && server.rdb_checksum) { uint64_t cksum, expected = rdb.cksum; if (rioRead(&rdb,&cksum,8) == 0) goto eoferr; memrev64ifbe(&cksum); if (cksum == 0) { redisLog(REDIS_WARNING,"RDB file was saved with checksum disabled: no check performed."); } else if (cksum != expected) { redisLog(REDIS_WARNING,"Wrong RDB checksum. Aborting now."); exit(1); } } fclose(fp); stopLoading(); return REDIS_OK; eoferr: /* unexpected end of file is handled here with a fatal exit */ redisLog(REDIS_WARNING,"Short read or OOM loading DB. Unrecoverable error, aborting now."); exit(1); return REDIS_ERR; /* Just to avoid warning */ } /* A background saving child (BGSAVE) terminated its work. Handle this. */ void backgroundSaveDoneHandler(int exitcode, int bysignal) { if (!bysignal && exitcode == 0) { redisLog(REDIS_NOTICE, "Background saving terminated with success"); server.dirty = server.dirty - server.dirty_before_bgsave; server.lastsave = time(NULL); server.lastbgsave_status = REDIS_OK; } else if (!bysignal && exitcode != 0) { redisLog(REDIS_WARNING, "Background saving error"); server.lastbgsave_status = REDIS_ERR; } else { redisLog(REDIS_WARNING, "Background saving terminated by signal %d", bysignal); rdbRemoveTempFile(server.rdb_child_pid); /* SIGUSR1 is whitelisted, so we have a way to kill a child without * tirggering an error conditon. */ if (bysignal != SIGUSR1) server.lastbgsave_status = REDIS_ERR; } server.rdb_child_pid = -1; server.rdb_save_time_last = time(NULL)-server.rdb_save_time_start; server.rdb_save_time_start = -1; /* Possibly there are slaves waiting for a BGSAVE in order to be served * (the first stage of SYNC is a bulk transfer of dump.rdb) */ updateSlavesWaitingBgsave(exitcode == 0 ? REDIS_OK : REDIS_ERR); } void saveCommand(redisClient *c) { if (server.rdb_child_pid != -1) { addReplyError(c,"Background save already in progress"); return; } if (rdbSave(server.rdb_filename) == REDIS_OK) { addReply(c,shared.ok); } else { addReply(c,shared.err); } } void bgsaveCommand(redisClient *c) { if (server.rdb_child_pid != -1) { addReplyError(c,"Background save already in progress"); } else if (server.aof_child_pid != -1) { addReplyError(c,"Can't BGSAVE while AOF log rewriting is in progress"); } else if (rdbSaveBackground(server.rdb_filename) == REDIS_OK) { addReplyStatus(c,"Background saving started"); } else { addReply(c,shared.err); } } redis-2.6.16/src/rdb.h000066400000000000000000000114701220734223100144220ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __REDIS_RDB_H #define __REDIS_RDB_H #include #include "rio.h" /* TBD: include only necessary headers. */ #include "redis.h" /* The current RDB version. When the format changes in a way that is no longer * backward compatible this number gets incremented. */ #define REDIS_RDB_VERSION 6 /* Defines related to the dump file format. To store 32 bits lengths for short * keys requires a lot of space, so we check the most significant 2 bits of * the first byte to interpreter the length: * * 00|000000 => if the two MSB are 00 the len is the 6 bits of this byte * 01|000000 00000000 => 01, the len is 14 byes, 6 bits + 8 bits of next byte * 10|000000 [32 bit integer] => if it's 01, a full 32 bit len will follow * 11|000000 this means: specially encoded object will follow. The six bits * number specify the kind of object that follows. * See the REDIS_RDB_ENC_* defines. * * Lengths up to 63 are stored using a single byte, most DB keys, and may * values, will fit inside. */ #define REDIS_RDB_6BITLEN 0 #define REDIS_RDB_14BITLEN 1 #define REDIS_RDB_32BITLEN 2 #define REDIS_RDB_ENCVAL 3 #define REDIS_RDB_LENERR UINT_MAX /* When a length of a string object stored on disk has the first two bits * set, the remaining two bits specify a special encoding for the object * accordingly to the following defines: */ #define REDIS_RDB_ENC_INT8 0 /* 8 bit signed integer */ #define REDIS_RDB_ENC_INT16 1 /* 16 bit signed integer */ #define REDIS_RDB_ENC_INT32 2 /* 32 bit signed integer */ #define REDIS_RDB_ENC_LZF 3 /* string compressed with FASTLZ */ /* Dup object types to RDB object types. Only reason is readability (are we * dealing with RDB types or with in-memory object types?). */ #define REDIS_RDB_TYPE_STRING 0 #define REDIS_RDB_TYPE_LIST 1 #define REDIS_RDB_TYPE_SET 2 #define REDIS_RDB_TYPE_ZSET 3 #define REDIS_RDB_TYPE_HASH 4 /* Object types for encoded objects. */ #define REDIS_RDB_TYPE_HASH_ZIPMAP 9 #define REDIS_RDB_TYPE_LIST_ZIPLIST 10 #define REDIS_RDB_TYPE_SET_INTSET 11 #define REDIS_RDB_TYPE_ZSET_ZIPLIST 12 #define REDIS_RDB_TYPE_HASH_ZIPLIST 13 /* Test if a type is an object type. */ #define rdbIsObjectType(t) ((t >= 0 && t <= 4) || (t >= 9 && t <= 13)) /* Special RDB opcodes (saved/loaded with rdbSaveType/rdbLoadType). */ #define REDIS_RDB_OPCODE_EXPIRETIME_MS 252 #define REDIS_RDB_OPCODE_EXPIRETIME 253 #define REDIS_RDB_OPCODE_SELECTDB 254 #define REDIS_RDB_OPCODE_EOF 255 int rdbSaveType(rio *rdb, unsigned char type); int rdbLoadType(rio *rdb); int rdbSaveTime(rio *rdb, time_t t); time_t rdbLoadTime(rio *rdb); int rdbSaveLen(rio *rdb, uint32_t len); uint32_t rdbLoadLen(rio *rdb, int *isencoded); int rdbSaveObjectType(rio *rdb, robj *o); int rdbLoadObjectType(rio *rdb); int rdbLoad(char *filename); int rdbSaveBackground(char *filename); void rdbRemoveTempFile(pid_t childpid); int rdbSave(char *filename); int rdbSaveObject(rio *rdb, robj *o); off_t rdbSavedObjectLen(robj *o); off_t rdbSavedObjectPages(robj *o); robj *rdbLoadObject(int type, rio *rdb); void backgroundSaveDoneHandler(int exitcode, int bysignal); int rdbSaveKeyValuePair(rio *rdb, robj *key, robj *val, long long expiretime, long long now); robj *rdbLoadStringObject(rio *rdb); #endif redis-2.6.16/src/redis-benchmark.c000066400000000000000000000653731220734223100167170ustar00rootroot00000000000000/* Redis benchmark utility. * * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "fmacros.h" #include #include #include #include #include #include #include #include #include "ae.h" #include "hiredis.h" #include "sds.h" #include "adlist.h" #include "zmalloc.h" #define REDIS_NOTUSED(V) ((void) V) #define RANDPTR_INITIAL_SIZE 8 static struct config { aeEventLoop *el; const char *hostip; int hostport; const char *hostsocket; int numclients; int liveclients; int requests; int requests_issued; int requests_finished; int keysize; int datasize; int randomkeys; int randomkeys_keyspacelen; int keepalive; int pipeline; long long start; long long totlatency; long long *latency; const char *title; list *clients; int quiet; int csv; int loop; int idlemode; int dbnum; sds dbnumstr; char *tests; } config; typedef struct _client { redisContext *context; sds obuf; char **randptr; /* Pointers to :rand: strings inside the command buf */ size_t randlen; /* Number of pointers in client->randptr */ size_t randfree; /* Number of unused pointers in client->randptr */ unsigned int written; /* Bytes of 'obuf' already written */ long long start; /* Start time of a request */ long long latency; /* Request latency */ int pending; /* Number of pending requests (replies to consume) */ int selectlen; /* If non-zero, a SELECT of 'selectlen' bytes is currently used as a prefix of the pipline of commands. This gets discarded the first time it's sent. */ } *client; /* Prototypes */ static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask); static void createMissingClients(client c); /* Implementation */ static long long ustime(void) { struct timeval tv; long long ust; gettimeofday(&tv, NULL); ust = ((long)tv.tv_sec)*1000000; ust += tv.tv_usec; return ust; } static long long mstime(void) { struct timeval tv; long long mst; gettimeofday(&tv, NULL); mst = ((long long)tv.tv_sec)*1000; mst += tv.tv_usec/1000; return mst; } static void freeClient(client c) { listNode *ln; aeDeleteFileEvent(config.el,c->context->fd,AE_WRITABLE); aeDeleteFileEvent(config.el,c->context->fd,AE_READABLE); redisFree(c->context); sdsfree(c->obuf); zfree(c->randptr); zfree(c); config.liveclients--; ln = listSearchKey(config.clients,c); assert(ln != NULL); listDelNode(config.clients,ln); } static void freeAllClients(void) { listNode *ln = config.clients->head, *next; while(ln) { next = ln->next; freeClient(ln->value); ln = next; } } static void resetClient(client c) { aeDeleteFileEvent(config.el,c->context->fd,AE_WRITABLE); aeDeleteFileEvent(config.el,c->context->fd,AE_READABLE); aeCreateFileEvent(config.el,c->context->fd,AE_WRITABLE,writeHandler,c); c->written = 0; c->pending = config.pipeline; } static void randomizeClientKey(client c) { size_t i; for (i = 0; i < c->randlen; i++) { char *p = c->randptr[i]+11; size_t r = random() % config.randomkeys_keyspacelen; size_t j; for (j = 0; j < 12; j++) { *p = '0'+r%10; r/=10; p--; } } } static void clientDone(client c) { if (config.requests_finished == config.requests) { freeClient(c); aeStop(config.el); return; } if (config.keepalive) { resetClient(c); } else { config.liveclients--; createMissingClients(c); config.liveclients++; freeClient(c); } } static void readHandler(aeEventLoop *el, int fd, void *privdata, int mask) { client c = privdata; void *reply = NULL; REDIS_NOTUSED(el); REDIS_NOTUSED(fd); REDIS_NOTUSED(mask); /* Calculate latency only for the first read event. This means that the * server already sent the reply and we need to parse it. Parsing overhead * is not part of the latency, so calculate it only once, here. */ if (c->latency < 0) c->latency = ustime()-(c->start); if (redisBufferRead(c->context) != REDIS_OK) { fprintf(stderr,"Error: %s\n",c->context->errstr); exit(1); } else { while(c->pending) { if (redisGetReply(c->context,&reply) != REDIS_OK) { fprintf(stderr,"Error: %s\n",c->context->errstr); exit(1); } if (reply != NULL) { if (reply == (void*)REDIS_REPLY_ERROR) { fprintf(stderr,"Unexpected error reply, exiting...\n"); exit(1); } freeReplyObject(reply); if (c->selectlen) { int j; /* This is the OK from SELECT. Just discard the SELECT * from the buffer. */ c->pending--; sdsrange(c->obuf,c->selectlen,-1); /* We also need to fix the pointers to the strings * we need to randomize. */ for (j = 0; j < c->randlen; j++) c->randptr[j] -= c->selectlen; c->selectlen = 0; continue; } if (config.requests_finished < config.requests) config.latency[config.requests_finished++] = c->latency; c->pending--; if (c->pending == 0) { clientDone(c); break; } } else { break; } } } } static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask) { client c = privdata; REDIS_NOTUSED(el); REDIS_NOTUSED(fd); REDIS_NOTUSED(mask); /* Initialize request when nothing was written. */ if (c->written == 0) { /* Enforce upper bound to number of requests. */ if (config.requests_issued++ >= config.requests) { freeClient(c); return; } /* Really initialize: randomize keys and set start time. */ if (config.randomkeys) randomizeClientKey(c); c->start = ustime(); c->latency = -1; } if (sdslen(c->obuf) > c->written) { void *ptr = c->obuf+c->written; int nwritten = write(c->context->fd,ptr,sdslen(c->obuf)-c->written); if (nwritten == -1) { if (errno != EPIPE) fprintf(stderr, "Writing to socket: %s\n", strerror(errno)); freeClient(c); return; } c->written += nwritten; if (sdslen(c->obuf) == c->written) { aeDeleteFileEvent(config.el,c->context->fd,AE_WRITABLE); aeCreateFileEvent(config.el,c->context->fd,AE_READABLE,readHandler,c); } } } /* Create a benchmark client, configured to send the command passed as 'cmd' of * 'len' bytes. * * The command is copied N times in the client output buffer (that is reused * again and again to send the request to the server) accordingly to the configured * pipeline size. * * Also an initial SELECT command is prepended in order to make sure the right * database is selected, if needed. The initial SELECT will be discarded as soon * as the first reply is received. * * To create a client from scratch, the 'from' pointer is set to NULL. If instead * we want to create a client using another client as reference, the 'from' pointer * points to the client to use as reference. In such a case the following * information is take from the 'from' client: * * 1) The command line to use. * 2) The offsets of the __rand_int__ elements inside the command line, used * for arguments randomization. * * Even when cloning another client, the SELECT command is automatically prefixed * if needed. */ static client createClient(char *cmd, size_t len, client from) { int j; client c = zmalloc(sizeof(struct _client)); if (config.hostsocket == NULL) { c->context = redisConnectNonBlock(config.hostip,config.hostport); } else { c->context = redisConnectUnixNonBlock(config.hostsocket); } if (c->context->err) { fprintf(stderr,"Could not connect to Redis at "); if (config.hostsocket == NULL) fprintf(stderr,"%s:%d: %s\n",config.hostip,config.hostport,c->context->errstr); else fprintf(stderr,"%s: %s\n",config.hostsocket,c->context->errstr); exit(1); } /* Suppress hiredis cleanup of unused buffers for max speed. */ c->context->reader->maxbuf = 0; /* Build the request buffer: * Queue N requests accordingly to the pipeline size, or simply clone * the example client buffer. */ c->obuf = sdsempty(); /* If a DB number different than zero is selected, prefix our request * buffer with the SELECT command, that will be discarded the first * time the replies are received, so if the client is reused the * SELECT command will not be used again. */ if (config.dbnum != 0) { c->obuf = sdscatprintf(c->obuf,"*2\r\n$6\r\nSELECT\r\n$%d\r\n%s\r\n", (int)sdslen(config.dbnumstr),config.dbnumstr); c->selectlen = sdslen(c->obuf); } else { c->selectlen = 0; } /* Append the request itself. */ if (from) { c->obuf = sdscatlen(c->obuf, from->obuf+from->selectlen, sdslen(from->obuf)-from->selectlen); } else { for (j = 0; j < config.pipeline; j++) c->obuf = sdscatlen(c->obuf,cmd,len); } c->written = 0; c->pending = config.pipeline; c->randptr = NULL; c->randlen = 0; if (c->selectlen) c->pending++; /* Find substrings in the output buffer that need to be randomized. */ if (config.randomkeys) { if (from) { c->randlen = from->randlen; c->randfree = 0; c->randptr = zmalloc(sizeof(char*)*c->randlen); /* copy the offsets. */ for (j = 0; j < c->randlen; j++) { c->randptr[j] = c->obuf + (from->randptr[j]-from->obuf); /* Adjust for the different select prefix length. */ c->randptr[j] += c->selectlen - from->selectlen; } } else { char *p = c->obuf; c->randlen = 0; c->randfree = RANDPTR_INITIAL_SIZE; c->randptr = zmalloc(sizeof(char*)*c->randfree); while ((p = strstr(p,"__rand_int__")) != NULL) { if (c->randfree == 0) { c->randptr = zrealloc(c->randptr,sizeof(char*)*c->randlen*2); c->randfree += c->randlen; } c->randptr[c->randlen++] = p; c->randfree--; p += 12; /* 12 is strlen("__rand_int__). */ } } } aeCreateFileEvent(config.el,c->context->fd,AE_WRITABLE,writeHandler,c); listAddNodeTail(config.clients,c); config.liveclients++; return c; } static void createMissingClients(client c) { int n = 0; char *buf = c->obuf; size_t buflen = sdslen(c->obuf); /* If we are cloning from a client with a SELECT prefix, skip it since the * client will be created with the prefixed SELECT if needed. */ if (c->selectlen) { buf += c->selectlen; buflen -= c->selectlen; } while(config.liveclients < config.numclients) { createClient(NULL,0,c); /* Listen backlog is quite limited on most systems */ if (++n > 64) { usleep(50000); n = 0; } } } static int compareLatency(const void *a, const void *b) { return (*(long long*)a)-(*(long long*)b); } static void showLatencyReport(void) { int i, curlat = 0; float perc, reqpersec; reqpersec = (float)config.requests_finished/((float)config.totlatency/1000); if (!config.quiet && !config.csv) { printf("====== %s ======\n", config.title); printf(" %d requests completed in %.2f seconds\n", config.requests_finished, (float)config.totlatency/1000); printf(" %d parallel clients\n", config.numclients); printf(" %d bytes payload\n", config.datasize); printf(" keep alive: %d\n", config.keepalive); printf("\n"); qsort(config.latency,config.requests,sizeof(long long),compareLatency); for (i = 0; i < config.requests; i++) { if (config.latency[i]/1000 != curlat || i == (config.requests-1)) { curlat = config.latency[i]/1000; perc = ((float)(i+1)*100)/config.requests; printf("%.2f%% <= %d milliseconds\n", perc, curlat); } } printf("%.2f requests per second\n\n", reqpersec); } else if (config.csv) { printf("\"%s\",\"%.2f\"\n", config.title, reqpersec); } else { printf("%s: %.2f requests per second\n", config.title, reqpersec); } } static void benchmark(char *title, char *cmd, int len) { client c; config.title = title; config.requests_issued = 0; config.requests_finished = 0; c = createClient(cmd,len,NULL); createMissingClients(c); config.start = mstime(); aeMain(config.el); config.totlatency = mstime()-config.start; showLatencyReport(); freeAllClients(); } /* Returns number of consumed options. */ int parseOptions(int argc, const char **argv) { int i; int lastarg; int exit_status = 1; for (i = 1; i < argc; i++) { lastarg = (i == (argc-1)); if (!strcmp(argv[i],"-c")) { if (lastarg) goto invalid; config.numclients = atoi(argv[++i]); } else if (!strcmp(argv[i],"-n")) { if (lastarg) goto invalid; config.requests = atoi(argv[++i]); } else if (!strcmp(argv[i],"-k")) { if (lastarg) goto invalid; config.keepalive = atoi(argv[++i]); } else if (!strcmp(argv[i],"-h")) { if (lastarg) goto invalid; config.hostip = strdup(argv[++i]); } else if (!strcmp(argv[i],"-p")) { if (lastarg) goto invalid; config.hostport = atoi(argv[++i]); } else if (!strcmp(argv[i],"-s")) { if (lastarg) goto invalid; config.hostsocket = strdup(argv[++i]); } else if (!strcmp(argv[i],"-d")) { if (lastarg) goto invalid; config.datasize = atoi(argv[++i]); if (config.datasize < 1) config.datasize=1; if (config.datasize > 1024*1024*1024) config.datasize = 1024*1024*1024; } else if (!strcmp(argv[i],"-P")) { if (lastarg) goto invalid; config.pipeline = atoi(argv[++i]); if (config.pipeline <= 0) config.pipeline=1; } else if (!strcmp(argv[i],"-r")) { if (lastarg) goto invalid; config.randomkeys = 1; config.randomkeys_keyspacelen = atoi(argv[++i]); if (config.randomkeys_keyspacelen < 0) config.randomkeys_keyspacelen = 0; } else if (!strcmp(argv[i],"-q")) { config.quiet = 1; } else if (!strcmp(argv[i],"--csv")) { config.csv = 1; } else if (!strcmp(argv[i],"-l")) { config.loop = 1; } else if (!strcmp(argv[i],"-I")) { config.idlemode = 1; } else if (!strcmp(argv[i],"-t")) { if (lastarg) goto invalid; /* We get the list of tests to run as a string in the form * get,set,lrange,...,test_N. Then we add a comma before and * after the string in order to make sure that searching * for ",testname," will always get a match if the test is * enabled. */ config.tests = sdsnew(","); config.tests = sdscat(config.tests,(char*)argv[++i]); config.tests = sdscat(config.tests,","); sdstolower(config.tests); } else if (!strcmp(argv[i],"--dbnum")) { if (lastarg) goto invalid; config.dbnum = atoi(argv[++i]); config.dbnumstr = sdsfromlonglong(config.dbnum); } else if (!strcmp(argv[i],"--help")) { exit_status = 0; goto usage; } else { /* Assume the user meant to provide an option when the arg starts * with a dash. We're done otherwise and should use the remainder * as the command and arguments for running the benchmark. */ if (argv[i][0] == '-') goto invalid; return i; } } return i; invalid: printf("Invalid option \"%s\" or option argument missing\n\n",argv[i]); usage: printf( "Usage: redis-benchmark [-h ] [-p ] [-c ] [-n [-k ]\n\n" " -h Server hostname (default 127.0.0.1)\n" " -p Server port (default 6379)\n" " -s Server socket (overrides host and port)\n" " -c Number of parallel connections (default 50)\n" " -n Total number of requests (default 10000)\n" " -d Data size of SET/GET value in bytes (default 2)\n" " -dbnum SELECT the specified db number (default 0)\n" " -k 1=keep alive 0=reconnect (default 1)\n" " -r Use random keys for SET/GET/INCR, random values for SADD\n" " Using this option the benchmark will get/set keys\n" " in the form mykey_rand:000000012456 instead of constant\n" " keys, the argument determines the max\n" " number of values for the random number. For instance\n" " if set to 10 only rand:000000000000 - rand:000000000009\n" " range will be allowed.\n" " -P Pipeline requests. Default 1 (no pipeline).\n" " -q Quiet. Just show query/sec values\n" " --csv Output in CSV format\n" " -l Loop. Run the tests forever\n" " -t Only run the comma separated list of tests. The test\n" " names are the same as the ones produced as output.\n" " -I Idle mode. Just open N idle connections and wait.\n\n" "Examples:\n\n" " Run the benchmark with the default configuration against 127.0.0.1:6379:\n" " $ redis-benchmark\n\n" " Use 20 parallel clients, for a total of 100k requests, against 192.168.1.1:\n" " $ redis-benchmark -h 192.168.1.1 -p 6379 -n 100000 -c 20\n\n" " Fill 127.0.0.1:6379 with about 1 million keys only using the SET test:\n" " $ redis-benchmark -t set -n 1000000 -r 100000000\n\n" " Benchmark 127.0.0.1:6379 for a few commands producing CSV output:\n" " $ redis-benchmark -t ping,set,get -n 100000 --csv\n\n" " Benchmark a specific command line:\n" " $ redis-benchmark -r 10000 -n 10000 eval 'return redis.call(\"ping\")' 0\n\n" " Fill a list with 10000 random elements:\n" " $ redis-benchmark -r 10000 -n 10000 lpush mylist __rand_int__\n\n" " On user specified command lines __rand_int__ is replaced with a random integer\n" " with a range of values selected by the -r option.\n" ); exit(exit_status); } int showThroughput(struct aeEventLoop *eventLoop, long long id, void *clientData) { REDIS_NOTUSED(eventLoop); REDIS_NOTUSED(id); REDIS_NOTUSED(clientData); if (config.csv) return 250; float dt = (float)(mstime()-config.start)/1000.0; float rps = (float)config.requests_finished/dt; printf("%s: %.2f\r", config.title, rps); fflush(stdout); return 250; /* every 250ms */ } /* Return true if the named test was selected using the -t command line * switch, or if all the tests are selected (no -t passed by user). */ int test_is_selected(char *name) { char buf[256]; int l = strlen(name); if (config.tests == NULL) return 1; buf[0] = ','; memcpy(buf+1,name,l); buf[l+1] = ','; buf[l+2] = '\0'; return strstr(config.tests,buf) != NULL; } int main(int argc, const char **argv) { int i; char *data, *cmd; int len; client c; signal(SIGHUP, SIG_IGN); signal(SIGPIPE, SIG_IGN); config.numclients = 50; config.requests = 10000; config.liveclients = 0; config.el = aeCreateEventLoop(1024*10); aeCreateTimeEvent(config.el,1,showThroughput,NULL,NULL); config.keepalive = 1; config.datasize = 3; config.pipeline = 1; config.randomkeys = 0; config.randomkeys_keyspacelen = 0; config.quiet = 0; config.csv = 0; config.loop = 0; config.idlemode = 0; config.latency = NULL; config.clients = listCreate(); config.hostip = "127.0.0.1"; config.hostport = 6379; config.hostsocket = NULL; config.tests = NULL; config.dbnum = 0; i = parseOptions(argc,argv); argc -= i; argv += i; config.latency = zmalloc(sizeof(long long)*config.requests); if (config.keepalive == 0) { printf("WARNING: keepalive disabled, you probably need 'echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse' for Linux and 'sudo sysctl -w net.inet.tcp.msl=1000' for Mac OS X in order to use a lot of clients/requests\n"); } if (config.idlemode) { printf("Creating %d idle connections and waiting forever (Ctrl+C when done)\n", config.numclients); c = createClient("",0,NULL); /* will never receive a reply */ createMissingClients(c); aeMain(config.el); /* and will wait for every */ } /* Run benchmark with command in the remainder of the arguments. */ if (argc) { sds title = sdsnew(argv[0]); for (i = 1; i < argc; i++) { title = sdscatlen(title, " ", 1); title = sdscatlen(title, (char*)argv[i], strlen(argv[i])); } do { len = redisFormatCommandArgv(&cmd,argc,argv,NULL); benchmark(title,cmd,len); free(cmd); } while(config.loop); return 0; } /* Run default benchmark suite. */ do { data = zmalloc(config.datasize+1); memset(data,'x',config.datasize); data[config.datasize] = '\0'; if (test_is_selected("ping_inline") || test_is_selected("ping")) benchmark("PING_INLINE","PING\r\n",6); if (test_is_selected("ping_mbulk") || test_is_selected("ping")) { len = redisFormatCommand(&cmd,"PING"); benchmark("PING_BULK",cmd,len); free(cmd); } if (test_is_selected("set")) { len = redisFormatCommand(&cmd,"SET key:__rand_int__ %s",data); benchmark("SET",cmd,len); free(cmd); } if (test_is_selected("get")) { len = redisFormatCommand(&cmd,"GET key:__rand_int__"); benchmark("GET",cmd,len); free(cmd); } if (test_is_selected("incr")) { len = redisFormatCommand(&cmd,"INCR counter:__rand_int__"); benchmark("INCR",cmd,len); free(cmd); } if (test_is_selected("lpush")) { len = redisFormatCommand(&cmd,"LPUSH mylist %s",data); benchmark("LPUSH",cmd,len); free(cmd); } if (test_is_selected("lpop")) { len = redisFormatCommand(&cmd,"LPOP mylist"); benchmark("LPOP",cmd,len); free(cmd); } if (test_is_selected("sadd")) { len = redisFormatCommand(&cmd, "SADD myset element:__rand_int__"); benchmark("SADD",cmd,len); free(cmd); } if (test_is_selected("spop")) { len = redisFormatCommand(&cmd,"SPOP myset"); benchmark("SPOP",cmd,len); free(cmd); } if (test_is_selected("lrange") || test_is_selected("lrange_100") || test_is_selected("lrange_300") || test_is_selected("lrange_500") || test_is_selected("lrange_600")) { len = redisFormatCommand(&cmd,"LPUSH mylist %s",data); benchmark("LPUSH (needed to benchmark LRANGE)",cmd,len); free(cmd); } if (test_is_selected("lrange") || test_is_selected("lrange_100")) { len = redisFormatCommand(&cmd,"LRANGE mylist 0 99"); benchmark("LRANGE_100 (first 100 elements)",cmd,len); free(cmd); } if (test_is_selected("lrange") || test_is_selected("lrange_300")) { len = redisFormatCommand(&cmd,"LRANGE mylist 0 299"); benchmark("LRANGE_300 (first 300 elements)",cmd,len); free(cmd); } if (test_is_selected("lrange") || test_is_selected("lrange_500")) { len = redisFormatCommand(&cmd,"LRANGE mylist 0 449"); benchmark("LRANGE_500 (first 450 elements)",cmd,len); free(cmd); } if (test_is_selected("lrange") || test_is_selected("lrange_600")) { len = redisFormatCommand(&cmd,"LRANGE mylist 0 599"); benchmark("LRANGE_600 (first 600 elements)",cmd,len); free(cmd); } if (test_is_selected("mset")) { const char *argv[21]; argv[0] = "MSET"; for (i = 1; i < 21; i += 2) { argv[i] = "key:__rand_int__"; argv[i+1] = data; } len = redisFormatCommandArgv(&cmd,21,argv,NULL); benchmark("MSET (10 keys)",cmd,len); free(cmd); } if (!config.csv) printf("\n"); } while(config.loop); return 0; } redis-2.6.16/src/redis-check-aof.c000066400000000000000000000142701220734223100165730ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Pieter Noordhuis * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "fmacros.h" #include #include #include #include #include #include "config.h" #define ERROR(...) { \ char __buf[1024]; \ sprintf(__buf, __VA_ARGS__); \ sprintf(error, "0x%16llx: %s", (long long)epos, __buf); \ } static char error[1024]; static off_t epos; int consumeNewline(char *buf) { if (strncmp(buf,"\r\n",2) != 0) { ERROR("Expected \\r\\n, got: %02x%02x",buf[0],buf[1]); return 0; } return 1; } int readLong(FILE *fp, char prefix, long *target) { char buf[128], *eptr; epos = ftello(fp); if (fgets(buf,sizeof(buf),fp) == NULL) { return 0; } if (buf[0] != prefix) { ERROR("Expected prefix '%c', got: '%c'",buf[0],prefix); return 0; } *target = strtol(buf+1,&eptr,10); return consumeNewline(eptr); } int readBytes(FILE *fp, char *target, long length) { long real; epos = ftello(fp); real = fread(target,1,length,fp); if (real != length) { ERROR("Expected to read %ld bytes, got %ld bytes",length,real); return 0; } return 1; } int readString(FILE *fp, char** target) { long len; *target = NULL; if (!readLong(fp,'$',&len)) { return 0; } /* Increase length to also consume \r\n */ len += 2; *target = (char*)malloc(len); if (!readBytes(fp,*target,len)) { return 0; } if (!consumeNewline(*target+len-2)) { return 0; } (*target)[len-2] = '\0'; return 1; } int readArgc(FILE *fp, long *target) { return readLong(fp,'*',target); } off_t process(FILE *fp) { long argc; off_t pos = 0; int i, multi = 0; char *str; while(1) { if (!multi) pos = ftello(fp); if (!readArgc(fp, &argc)) break; for (i = 0; i < argc; i++) { if (!readString(fp,&str)) break; if (i == 0) { if (strcasecmp(str, "multi") == 0) { if (multi++) { ERROR("Unexpected MULTI"); break; } } else if (strcasecmp(str, "exec") == 0) { if (--multi) { ERROR("Unexpected EXEC"); break; } } } free(str); } /* Stop if the loop did not finish */ if (i < argc) { if (str) free(str); break; } } if (feof(fp) && multi && strlen(error) == 0) { ERROR("Reached EOF before reading EXEC for MULTI"); } if (strlen(error) > 0) { printf("%s\n", error); } return pos; } int main(int argc, char **argv) { char *filename; int fix = 0; if (argc < 2) { printf("Usage: %s [--fix] \n", argv[0]); exit(1); } else if (argc == 2) { filename = argv[1]; } else if (argc == 3) { if (strcmp(argv[1],"--fix") != 0) { printf("Invalid argument: %s\n", argv[1]); exit(1); } filename = argv[2]; fix = 1; } else { printf("Invalid arguments\n"); exit(1); } FILE *fp = fopen(filename,"r+"); if (fp == NULL) { printf("Cannot open file: %s\n", filename); exit(1); } struct redis_stat sb; if (redis_fstat(fileno(fp),&sb) == -1) { printf("Cannot stat file: %s\n", filename); exit(1); } off_t size = sb.st_size; if (size == 0) { printf("Empty file: %s\n", filename); exit(1); } off_t pos = process(fp); off_t diff = size-pos; printf("AOF analyzed: size=%lld, ok_up_to=%lld, diff=%lld\n", (long long) size, (long long) pos, (long long) diff); if (diff > 0) { if (fix) { char buf[2]; printf("This will shrink the AOF from %lld bytes, with %lld bytes, to %lld bytes\n",(long long)size,(long long)diff,(long long)pos); printf("Continue? [y/N]: "); if (fgets(buf,sizeof(buf),stdin) == NULL || strncasecmp(buf,"y",1) != 0) { printf("Aborting...\n"); exit(1); } if (ftruncate(fileno(fp), pos) == -1) { printf("Failed to truncate AOF\n"); exit(1); } else { printf("Successfully truncated AOF\n"); } } else { printf("AOF is not valid\n"); exit(1); } } else { printf("AOF is valid\n"); } fclose(fp); return 0; } redis-2.6.16/src/redis-check-dump.c000066400000000000000000000533151220734223100167760ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Pieter Noordhuis * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include "lzf.h" /* Object types */ #define REDIS_STRING 0 #define REDIS_LIST 1 #define REDIS_SET 2 #define REDIS_ZSET 3 #define REDIS_HASH 4 #define REDIS_HASH_ZIPMAP 9 #define REDIS_LIST_ZIPLIST 10 #define REDIS_SET_INTSET 11 #define REDIS_ZSET_ZIPLIST 12 #define REDIS_HASH_ZIPLIST 13 /* Objects encoding. Some kind of objects like Strings and Hashes can be * internally represented in multiple ways. The 'encoding' field of the object * is set to one of this fields for this object. */ #define REDIS_ENCODING_RAW 0 /* Raw representation */ #define REDIS_ENCODING_INT 1 /* Encoded as integer */ #define REDIS_ENCODING_ZIPMAP 2 /* Encoded as zipmap */ #define REDIS_ENCODING_HT 3 /* Encoded as an hash table */ /* Object types only used for dumping to disk */ #define REDIS_EXPIRETIME_MS 252 #define REDIS_EXPIRETIME 253 #define REDIS_SELECTDB 254 #define REDIS_EOF 255 /* Defines related to the dump file format. To store 32 bits lengths for short * keys requires a lot of space, so we check the most significant 2 bits of * the first byte to interpreter the length: * * 00|000000 => if the two MSB are 00 the len is the 6 bits of this byte * 01|000000 00000000 => 01, the len is 14 byes, 6 bits + 8 bits of next byte * 10|000000 [32 bit integer] => if it's 01, a full 32 bit len will follow * 11|000000 this means: specially encoded object will follow. The six bits * number specify the kind of object that follows. * See the REDIS_RDB_ENC_* defines. * * Lengths up to 63 are stored using a single byte, most DB keys, and may * values, will fit inside. */ #define REDIS_RDB_6BITLEN 0 #define REDIS_RDB_14BITLEN 1 #define REDIS_RDB_32BITLEN 2 #define REDIS_RDB_ENCVAL 3 #define REDIS_RDB_LENERR UINT_MAX /* When a length of a string object stored on disk has the first two bits * set, the remaining two bits specify a special encoding for the object * accordingly to the following defines: */ #define REDIS_RDB_ENC_INT8 0 /* 8 bit signed integer */ #define REDIS_RDB_ENC_INT16 1 /* 16 bit signed integer */ #define REDIS_RDB_ENC_INT32 2 /* 32 bit signed integer */ #define REDIS_RDB_ENC_LZF 3 /* string compressed with FASTLZ */ #define ERROR(...) { \ printf(__VA_ARGS__); \ exit(1); \ } /* data type to hold offset in file and size */ typedef struct { void *data; size_t size; size_t offset; } pos; static unsigned char level = 0; static pos positions[16]; #define CURR_OFFSET (positions[level].offset) /* Hold a stack of errors */ typedef struct { char error[16][1024]; size_t offset[16]; size_t level; } errors_t; static errors_t errors; #define SHIFT_ERROR(provided_offset, ...) { \ sprintf(errors.error[errors.level], __VA_ARGS__); \ errors.offset[errors.level] = provided_offset; \ errors.level++; \ } /* Data type to hold opcode with optional key name an success status */ typedef struct { char* key; int type; char success; } entry; /* Global vars that are actually used as constants. The following double * values are used for double on-disk serialization, and are initialized * at runtime to avoid strange compiler optimizations. */ static double R_Zero, R_PosInf, R_NegInf, R_Nan; /* store string types for output */ static char types[256][16]; /* Prototypes */ uint64_t crc64(uint64_t crc, const unsigned char *s, uint64_t l); /* Return true if 't' is a valid object type. */ int checkType(unsigned char t) { /* In case a new object type is added, update the following * condition as necessary. */ return (t >= REDIS_HASH_ZIPMAP && t <= REDIS_HASH_ZIPLIST) || t <= REDIS_HASH || t >= REDIS_EXPIRETIME_MS; } /* when number of bytes to read is negative, do a peek */ int readBytes(void *target, long num) { char peek = (num < 0) ? 1 : 0; num = (num < 0) ? -num : num; pos p = positions[level]; if (p.offset + num > p.size) { return 0; } else { memcpy(target, (void*)((size_t)p.data + p.offset), num); if (!peek) positions[level].offset += num; } return 1; } int processHeader() { char buf[10] = "_________"; int dump_version; if (!readBytes(buf, 9)) { ERROR("Cannot read header\n"); } /* expect the first 5 bytes to equal REDIS */ if (memcmp(buf,"REDIS",5) != 0) { ERROR("Wrong signature in header\n"); } dump_version = (int)strtol(buf + 5, NULL, 10); if (dump_version < 1 || dump_version > 6) { ERROR("Unknown RDB format version: %d\n", dump_version); } return dump_version; } int loadType(entry *e) { uint32_t offset = CURR_OFFSET; /* this byte needs to qualify as type */ unsigned char t; if (readBytes(&t, 1)) { if (checkType(t)) { e->type = t; return 1; } else { SHIFT_ERROR(offset, "Unknown type (0x%02x)", t); } } else { SHIFT_ERROR(offset, "Could not read type"); } /* failure */ return 0; } int peekType() { unsigned char t; if (readBytes(&t, -1) && (checkType(t))) return t; return -1; } /* discard time, just consume the bytes */ int processTime(int type) { uint32_t offset = CURR_OFFSET; unsigned char t[8]; int timelen = (type == REDIS_EXPIRETIME_MS) ? 8 : 4; if (readBytes(t,timelen)) { return 1; } else { SHIFT_ERROR(offset, "Could not read time"); } /* failure */ return 0; } uint32_t loadLength(int *isencoded) { unsigned char buf[2]; uint32_t len; int type; if (isencoded) *isencoded = 0; if (!readBytes(buf, 1)) return REDIS_RDB_LENERR; type = (buf[0] & 0xC0) >> 6; if (type == REDIS_RDB_6BITLEN) { /* Read a 6 bit len */ return buf[0] & 0x3F; } else if (type == REDIS_RDB_ENCVAL) { /* Read a 6 bit len encoding type */ if (isencoded) *isencoded = 1; return buf[0] & 0x3F; } else if (type == REDIS_RDB_14BITLEN) { /* Read a 14 bit len */ if (!readBytes(buf+1,1)) return REDIS_RDB_LENERR; return ((buf[0] & 0x3F) << 8) | buf[1]; } else { /* Read a 32 bit len */ if (!readBytes(&len, 4)) return REDIS_RDB_LENERR; return (unsigned int)ntohl(len); } } char *loadIntegerObject(int enctype) { uint32_t offset = CURR_OFFSET; unsigned char enc[4]; long long val; if (enctype == REDIS_RDB_ENC_INT8) { uint8_t v; if (!readBytes(enc, 1)) return NULL; v = enc[0]; val = (int8_t)v; } else if (enctype == REDIS_RDB_ENC_INT16) { uint16_t v; if (!readBytes(enc, 2)) return NULL; v = enc[0]|(enc[1]<<8); val = (int16_t)v; } else if (enctype == REDIS_RDB_ENC_INT32) { uint32_t v; if (!readBytes(enc, 4)) return NULL; v = enc[0]|(enc[1]<<8)|(enc[2]<<16)|(enc[3]<<24); val = (int32_t)v; } else { SHIFT_ERROR(offset, "Unknown integer encoding (0x%02x)", enctype); return NULL; } /* convert val into string */ char *buf; buf = malloc(sizeof(char) * 128); sprintf(buf, "%lld", val); return buf; } char* loadLzfStringObject() { unsigned int slen, clen; char *c, *s; if ((clen = loadLength(NULL)) == REDIS_RDB_LENERR) return NULL; if ((slen = loadLength(NULL)) == REDIS_RDB_LENERR) return NULL; c = malloc(clen); if (!readBytes(c, clen)) { free(c); return NULL; } s = malloc(slen+1); if (lzf_decompress(c,clen,s,slen) == 0) { free(c); free(s); return NULL; } free(c); return s; } /* returns NULL when not processable, char* when valid */ char* loadStringObject() { uint32_t offset = CURR_OFFSET; int isencoded; uint32_t len; len = loadLength(&isencoded); if (isencoded) { switch(len) { case REDIS_RDB_ENC_INT8: case REDIS_RDB_ENC_INT16: case REDIS_RDB_ENC_INT32: return loadIntegerObject(len); case REDIS_RDB_ENC_LZF: return loadLzfStringObject(); default: /* unknown encoding */ SHIFT_ERROR(offset, "Unknown string encoding (0x%02x)", len); return NULL; } } if (len == REDIS_RDB_LENERR) return NULL; char *buf = malloc(sizeof(char) * (len+1)); buf[len] = '\0'; if (!readBytes(buf, len)) { free(buf); return NULL; } return buf; } int processStringObject(char** store) { unsigned long offset = CURR_OFFSET; char *key = loadStringObject(); if (key == NULL) { SHIFT_ERROR(offset, "Error reading string object"); free(key); return 0; } if (store != NULL) { *store = key; } else { free(key); } return 1; } double* loadDoubleValue() { char buf[256]; unsigned char len; double* val; if (!readBytes(&len,1)) return NULL; val = malloc(sizeof(double)); switch(len) { case 255: *val = R_NegInf; return val; case 254: *val = R_PosInf; return val; case 253: *val = R_Nan; return val; default: if (!readBytes(buf, len)) { free(val); return NULL; } buf[len] = '\0'; sscanf(buf, "%lg", val); return val; } } int processDoubleValue(double** store) { unsigned long offset = CURR_OFFSET; double *val = loadDoubleValue(); if (val == NULL) { SHIFT_ERROR(offset, "Error reading double value"); free(val); return 0; } if (store != NULL) { *store = val; } else { free(val); } return 1; } int loadPair(entry *e) { uint32_t offset = CURR_OFFSET; uint32_t i; /* read key first */ char *key; if (processStringObject(&key)) { e->key = key; } else { SHIFT_ERROR(offset, "Error reading entry key"); return 0; } uint32_t length = 0; if (e->type == REDIS_LIST || e->type == REDIS_SET || e->type == REDIS_ZSET || e->type == REDIS_HASH) { if ((length = loadLength(NULL)) == REDIS_RDB_LENERR) { SHIFT_ERROR(offset, "Error reading %s length", types[e->type]); return 0; } } switch(e->type) { case REDIS_STRING: case REDIS_HASH_ZIPMAP: case REDIS_LIST_ZIPLIST: case REDIS_SET_INTSET: case REDIS_ZSET_ZIPLIST: case REDIS_HASH_ZIPLIST: if (!processStringObject(NULL)) { SHIFT_ERROR(offset, "Error reading entry value"); return 0; } break; case REDIS_LIST: case REDIS_SET: for (i = 0; i < length; i++) { offset = CURR_OFFSET; if (!processStringObject(NULL)) { SHIFT_ERROR(offset, "Error reading element at index %d (length: %d)", i, length); return 0; } } break; case REDIS_ZSET: for (i = 0; i < length; i++) { offset = CURR_OFFSET; if (!processStringObject(NULL)) { SHIFT_ERROR(offset, "Error reading element key at index %d (length: %d)", i, length); return 0; } offset = CURR_OFFSET; if (!processDoubleValue(NULL)) { SHIFT_ERROR(offset, "Error reading element value at index %d (length: %d)", i, length); return 0; } } break; case REDIS_HASH: for (i = 0; i < length; i++) { offset = CURR_OFFSET; if (!processStringObject(NULL)) { SHIFT_ERROR(offset, "Error reading element key at index %d (length: %d)", i, length); return 0; } offset = CURR_OFFSET; if (!processStringObject(NULL)) { SHIFT_ERROR(offset, "Error reading element value at index %d (length: %d)", i, length); return 0; } } break; default: SHIFT_ERROR(offset, "Type not implemented"); return 0; } /* because we're done, we assume success */ e->success = 1; return 1; } entry loadEntry() { entry e = { NULL, -1, 0 }; uint32_t length, offset[4]; /* reset error container */ errors.level = 0; offset[0] = CURR_OFFSET; if (!loadType(&e)) { return e; } offset[1] = CURR_OFFSET; if (e.type == REDIS_SELECTDB) { if ((length = loadLength(NULL)) == REDIS_RDB_LENERR) { SHIFT_ERROR(offset[1], "Error reading database number"); return e; } if (length > 63) { SHIFT_ERROR(offset[1], "Database number out of range (%d)", length); return e; } } else if (e.type == REDIS_EOF) { if (positions[level].offset < positions[level].size) { SHIFT_ERROR(offset[0], "Unexpected EOF"); } else { e.success = 1; } return e; } else { /* optionally consume expire */ if (e.type == REDIS_EXPIRETIME || e.type == REDIS_EXPIRETIME_MS) { if (!processTime(e.type)) return e; if (!loadType(&e)) return e; } offset[1] = CURR_OFFSET; if (!loadPair(&e)) { SHIFT_ERROR(offset[1], "Error for type %s", types[e.type]); return e; } } /* all entries are followed by a valid type: * e.g. a new entry, SELECTDB, EXPIRE, EOF */ offset[2] = CURR_OFFSET; if (peekType() == -1) { SHIFT_ERROR(offset[2], "Followed by invalid type"); SHIFT_ERROR(offset[0], "Error for type %s", types[e.type]); e.success = 0; } else { e.success = 1; } return e; } void printCentered(int indent, int width, char* body) { char head[256], tail[256]; memset(head, '\0', 256); memset(tail, '\0', 256); memset(head, '=', indent); memset(tail, '=', width - 2 - indent - strlen(body)); printf("%s %s %s\n", head, body, tail); } void printValid(uint64_t ops, uint64_t bytes) { char body[80]; sprintf(body, "Processed %llu valid opcodes (in %llu bytes)", (unsigned long long) ops, (unsigned long long) bytes); printCentered(4, 80, body); } void printSkipped(uint64_t bytes, uint64_t offset) { char body[80]; sprintf(body, "Skipped %llu bytes (resuming at 0x%08llx)", (unsigned long long) bytes, (unsigned long long) offset); printCentered(4, 80, body); } void printErrorStack(entry *e) { unsigned int i; char body[64]; if (e->type == -1) { sprintf(body, "Error trace"); } else if (e->type >= 253) { sprintf(body, "Error trace (%s)", types[e->type]); } else if (!e->key) { sprintf(body, "Error trace (%s: (unknown))", types[e->type]); } else { char tmp[41]; strncpy(tmp, e->key, 40); /* display truncation at the last 3 chars */ if (strlen(e->key) > 40) { memset(&tmp[37], '.', 3); } /* display unprintable characters as ? */ for (i = 0; i < strlen(tmp); i++) { if (tmp[i] <= 32) tmp[i] = '?'; } sprintf(body, "Error trace (%s: %s)", types[e->type], tmp); } printCentered(4, 80, body); /* display error stack */ for (i = 0; i < errors.level; i++) { printf("0x%08lx - %s\n", (unsigned long) errors.offset[i], errors.error[i]); } } void process() { uint64_t num_errors = 0, num_valid_ops = 0, num_valid_bytes = 0; entry entry; int dump_version = processHeader(); /* Exclude the final checksum for RDB >= 5. Will be checked at the end. */ if (dump_version >= 5) { if (positions[0].size < 8) { printf("RDB version >= 5 but no room for checksum.\n"); exit(1); } positions[0].size -= 8;; } level = 1; while(positions[0].offset < positions[0].size) { positions[1] = positions[0]; entry = loadEntry(); if (!entry.success) { printValid(num_valid_ops, num_valid_bytes); printErrorStack(&entry); num_errors++; num_valid_ops = 0; num_valid_bytes = 0; /* search for next valid entry */ uint64_t offset = positions[0].offset + 1; int i = 0; while (!entry.success && offset < positions[0].size) { positions[1].offset = offset; /* find 3 consecutive valid entries */ for (i = 0; i < 3; i++) { entry = loadEntry(); if (!entry.success) break; } /* check if we found 3 consecutive valid entries */ if (i < 3) { offset++; } } /* print how many bytes we have skipped to find a new valid opcode */ if (offset < positions[0].size) { printSkipped(offset - positions[0].offset, offset); } positions[0].offset = offset; } else { num_valid_ops++; num_valid_bytes += positions[1].offset - positions[0].offset; /* advance position */ positions[0] = positions[1]; } free(entry.key); } /* because there is another potential error, * print how many valid ops we have processed */ printValid(num_valid_ops, num_valid_bytes); /* expect an eof */ if (entry.type != REDIS_EOF) { /* last byte should be EOF, add error */ errors.level = 0; SHIFT_ERROR(positions[0].offset, "Expected EOF, got %s", types[entry.type]); /* this is an EOF error so reset type */ entry.type = -1; printErrorStack(&entry); num_errors++; } /* Verify checksum */ if (dump_version >= 5) { uint64_t crc = crc64(0,positions[0].data,positions[0].size); uint64_t crc2; unsigned char *p = (unsigned char*)positions[0].data+positions[0].size; crc2 = ((uint64_t)p[0] << 0) | ((uint64_t)p[1] << 8) | ((uint64_t)p[2] << 16) | ((uint64_t)p[3] << 24) | ((uint64_t)p[4] << 32) | ((uint64_t)p[5] << 40) | ((uint64_t)p[6] << 48) | ((uint64_t)p[7] << 56); if (crc != crc2) { SHIFT_ERROR(positions[0].offset, "RDB CRC64 does not match."); } else { printf("CRC64 checksum is OK\n"); } } /* print summary on errors */ if (num_errors) { printf("\n"); printf("Total unprocessable opcodes: %llu\n", (unsigned long long) num_errors); } } int main(int argc, char **argv) { /* expect the first argument to be the dump file */ if (argc <= 1) { printf("Usage: %s \n", argv[0]); exit(0); } int fd; off_t size; struct stat stat; void *data; fd = open(argv[1], O_RDONLY); if (fd < 1) { ERROR("Cannot open file: %s\n", argv[1]); } if (fstat(fd, &stat) == -1) { ERROR("Cannot stat: %s\n", argv[1]); } else { size = stat.st_size; } if (sizeof(size_t) == sizeof(int32_t) && size >= INT_MAX) { ERROR("Cannot check dump files >2GB on a 32-bit platform\n"); } data = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0); if (data == MAP_FAILED) { ERROR("Cannot mmap: %s\n", argv[1]); } /* Initialize static vars */ positions[0].data = data; positions[0].size = size; positions[0].offset = 0; errors.level = 0; /* Object types */ sprintf(types[REDIS_STRING], "STRING"); sprintf(types[REDIS_LIST], "LIST"); sprintf(types[REDIS_SET], "SET"); sprintf(types[REDIS_ZSET], "ZSET"); sprintf(types[REDIS_HASH], "HASH"); /* Object types only used for dumping to disk */ sprintf(types[REDIS_EXPIRETIME], "EXPIRETIME"); sprintf(types[REDIS_SELECTDB], "SELECTDB"); sprintf(types[REDIS_EOF], "EOF"); /* Double constants initialization */ R_Zero = 0.0; R_PosInf = 1.0/R_Zero; R_NegInf = -1.0/R_Zero; R_Nan = R_Zero/R_Zero; process(); munmap(data, size); close(fd); return 0; } redis-2.6.16/src/redis-cli.c000066400000000000000000001414151220734223100155240ustar00rootroot00000000000000/* Redis CLI (command line interface) * * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "fmacros.h" #include "version.h" #include #include #include #include #include #include #include #include #include #include #include #include #include "hiredis.h" #include "sds.h" #include "zmalloc.h" #include "linenoise.h" #include "help.h" #include "anet.h" #include "ae.h" #define REDIS_NOTUSED(V) ((void) V) #define OUTPUT_STANDARD 0 #define OUTPUT_RAW 1 #define OUTPUT_CSV 2 #define REDIS_CLI_KEEPALIVE_INTERVAL 15 /* seconds */ static redisContext *context; static struct config { char *hostip; int hostport; char *hostsocket; long repeat; long interval; int dbnum; int interactive; int shutdown; int monitor_mode; int pubsub_mode; int latency_mode; int latency_history; int cluster_mode; int cluster_reissue_command; int slave_mode; int pipe_mode; int getrdb_mode; int stat_mode; char *rdb_filename; int bigkeys; int stdinarg; /* get last arg from stdin. (-x option) */ char *auth; int output; /* output mode, see OUTPUT_* defines */ sds mb_delim; char prompt[128]; char *eval; } config; static void usage(); char *redisGitSHA1(void); char *redisGitDirty(void); /*------------------------------------------------------------------------------ * Utility functions *--------------------------------------------------------------------------- */ static long long mstime(void) { struct timeval tv; long long mst; gettimeofday(&tv, NULL); mst = ((long long)tv.tv_sec)*1000; mst += tv.tv_usec/1000; return mst; } static void cliRefreshPrompt(void) { int len; if (config.hostsocket != NULL) len = snprintf(config.prompt,sizeof(config.prompt),"redis %s", config.hostsocket); else len = snprintf(config.prompt,sizeof(config.prompt),"redis %s:%d", config.hostip, config.hostport); /* Add [dbnum] if needed */ if (config.dbnum != 0) len += snprintf(config.prompt+len,sizeof(config.prompt)-len,"[%d]", config.dbnum); snprintf(config.prompt+len,sizeof(config.prompt)-len,"> "); } /*------------------------------------------------------------------------------ * Help functions *--------------------------------------------------------------------------- */ #define CLI_HELP_COMMAND 1 #define CLI_HELP_GROUP 2 typedef struct { int type; int argc; sds *argv; sds full; /* Only used for help on commands */ struct commandHelp *org; } helpEntry; static helpEntry *helpEntries; static int helpEntriesLen; static sds cliVersion() { sds version; version = sdscatprintf(sdsempty(), "%s", REDIS_VERSION); /* Add git commit and working tree status when available */ if (strtoll(redisGitSHA1(),NULL,16)) { version = sdscatprintf(version, " (git:%s", redisGitSHA1()); if (strtoll(redisGitDirty(),NULL,10)) version = sdscatprintf(version, "-dirty"); version = sdscat(version, ")"); } return version; } static void cliInitHelp() { int commandslen = sizeof(commandHelp)/sizeof(struct commandHelp); int groupslen = sizeof(commandGroups)/sizeof(char*); int i, len, pos = 0; helpEntry tmp; helpEntriesLen = len = commandslen+groupslen; helpEntries = malloc(sizeof(helpEntry)*len); for (i = 0; i < groupslen; i++) { tmp.argc = 1; tmp.argv = malloc(sizeof(sds)); tmp.argv[0] = sdscatprintf(sdsempty(),"@%s",commandGroups[i]); tmp.full = tmp.argv[0]; tmp.type = CLI_HELP_GROUP; tmp.org = NULL; helpEntries[pos++] = tmp; } for (i = 0; i < commandslen; i++) { tmp.argv = sdssplitargs(commandHelp[i].name,&tmp.argc); tmp.full = sdsnew(commandHelp[i].name); tmp.type = CLI_HELP_COMMAND; tmp.org = &commandHelp[i]; helpEntries[pos++] = tmp; } } /* Output command help to stdout. */ static void cliOutputCommandHelp(struct commandHelp *help, int group) { printf("\r\n \x1b[1m%s\x1b[0m \x1b[90m%s\x1b[0m\r\n", help->name, help->params); printf(" \x1b[33msummary:\x1b[0m %s\r\n", help->summary); printf(" \x1b[33msince:\x1b[0m %s\r\n", help->since); if (group) { printf(" \x1b[33mgroup:\x1b[0m %s\r\n", commandGroups[help->group]); } } /* Print generic help. */ static void cliOutputGenericHelp() { sds version = cliVersion(); printf( "redis-cli %s\r\n" "Type: \"help @\" to get a list of commands in \r\n" " \"help \" for help on \r\n" " \"help \" to get a list of possible help topics\r\n" " \"quit\" to exit\r\n", version ); sdsfree(version); } /* Output all command help, filtering by group or command name. */ static void cliOutputHelp(int argc, char **argv) { int i, j, len; int group = -1; helpEntry *entry; struct commandHelp *help; if (argc == 0) { cliOutputGenericHelp(); return; } else if (argc > 0 && argv[0][0] == '@') { len = sizeof(commandGroups)/sizeof(char*); for (i = 0; i < len; i++) { if (strcasecmp(argv[0]+1,commandGroups[i]) == 0) { group = i; break; } } } assert(argc > 0); for (i = 0; i < helpEntriesLen; i++) { entry = &helpEntries[i]; if (entry->type != CLI_HELP_COMMAND) continue; help = entry->org; if (group == -1) { /* Compare all arguments */ if (argc == entry->argc) { for (j = 0; j < argc; j++) { if (strcasecmp(argv[j],entry->argv[j]) != 0) break; } if (j == argc) { cliOutputCommandHelp(help,1); } } } else { if (group == help->group) { cliOutputCommandHelp(help,0); } } } printf("\r\n"); } static void completionCallback(const char *buf, linenoiseCompletions *lc) { size_t startpos = 0; int mask; int i; size_t matchlen; sds tmp; if (strncasecmp(buf,"help ",5) == 0) { startpos = 5; while (isspace(buf[startpos])) startpos++; mask = CLI_HELP_COMMAND | CLI_HELP_GROUP; } else { mask = CLI_HELP_COMMAND; } for (i = 0; i < helpEntriesLen; i++) { if (!(helpEntries[i].type & mask)) continue; matchlen = strlen(buf+startpos); if (strncasecmp(buf+startpos,helpEntries[i].full,matchlen) == 0) { tmp = sdsnewlen(buf,startpos); tmp = sdscat(tmp,helpEntries[i].full); linenoiseAddCompletion(lc,tmp); sdsfree(tmp); } } } /*------------------------------------------------------------------------------ * Networking / parsing *--------------------------------------------------------------------------- */ /* Send AUTH command to the server */ static int cliAuth() { redisReply *reply; if (config.auth == NULL) return REDIS_OK; reply = redisCommand(context,"AUTH %s",config.auth); if (reply != NULL) { freeReplyObject(reply); return REDIS_OK; } return REDIS_ERR; } /* Send SELECT dbnum to the server */ static int cliSelect() { redisReply *reply; if (config.dbnum == 0) return REDIS_OK; reply = redisCommand(context,"SELECT %d",config.dbnum); if (reply != NULL) { freeReplyObject(reply); return REDIS_OK; } return REDIS_ERR; } /* Connect to the server. If force is not zero the connection is performed * even if there is already a connected socket. */ static int cliConnect(int force) { if (context == NULL || force) { if (context != NULL) redisFree(context); if (config.hostsocket == NULL) { context = redisConnect(config.hostip,config.hostport); } else { context = redisConnectUnix(config.hostsocket); } if (context->err) { fprintf(stderr,"Could not connect to Redis at "); if (config.hostsocket == NULL) fprintf(stderr,"%s:%d: %s\n",config.hostip,config.hostport,context->errstr); else fprintf(stderr,"%s: %s\n",config.hostsocket,context->errstr); redisFree(context); context = NULL; return REDIS_ERR; } /* Set aggressive KEEP_ALIVE socket option in the Redis context socket * in order to prevent timeouts caused by the execution of long * commands. At the same time this improves the detection of real * errors. */ anetKeepAlive(NULL, context->fd, REDIS_CLI_KEEPALIVE_INTERVAL); /* Do AUTH and select the right DB. */ if (cliAuth() != REDIS_OK) return REDIS_ERR; if (cliSelect() != REDIS_OK) return REDIS_ERR; } return REDIS_OK; } static void cliPrintContextError() { if (context == NULL) return; fprintf(stderr,"Error: %s\n",context->errstr); } static sds cliFormatReplyTTY(redisReply *r, char *prefix) { sds out = sdsempty(); switch (r->type) { case REDIS_REPLY_ERROR: out = sdscatprintf(out,"(error) %s\n", r->str); break; case REDIS_REPLY_STATUS: out = sdscat(out,r->str); out = sdscat(out,"\n"); break; case REDIS_REPLY_INTEGER: out = sdscatprintf(out,"(integer) %lld\n",r->integer); break; case REDIS_REPLY_STRING: /* If you are producing output for the standard output we want * a more interesting output with quoted characters and so forth */ out = sdscatrepr(out,r->str,r->len); out = sdscat(out,"\n"); break; case REDIS_REPLY_NIL: out = sdscat(out,"(nil)\n"); break; case REDIS_REPLY_ARRAY: if (r->elements == 0) { out = sdscat(out,"(empty list or set)\n"); } else { unsigned int i, idxlen = 0; char _prefixlen[16]; char _prefixfmt[16]; sds _prefix; sds tmp; /* Calculate chars needed to represent the largest index */ i = r->elements; do { idxlen++; i /= 10; } while(i); /* Prefix for nested multi bulks should grow with idxlen+2 spaces */ memset(_prefixlen,' ',idxlen+2); _prefixlen[idxlen+2] = '\0'; _prefix = sdscat(sdsnew(prefix),_prefixlen); /* Setup prefix format for every entry */ snprintf(_prefixfmt,sizeof(_prefixfmt),"%%s%%%dd) ",idxlen); for (i = 0; i < r->elements; i++) { /* Don't use the prefix for the first element, as the parent * caller already prepended the index number. */ out = sdscatprintf(out,_prefixfmt,i == 0 ? "" : prefix,i+1); /* Format the multi bulk entry */ tmp = cliFormatReplyTTY(r->element[i],_prefix); out = sdscatlen(out,tmp,sdslen(tmp)); sdsfree(tmp); } sdsfree(_prefix); } break; default: fprintf(stderr,"Unknown reply type: %d\n", r->type); exit(1); } return out; } static sds cliFormatReplyRaw(redisReply *r) { sds out = sdsempty(), tmp; size_t i; switch (r->type) { case REDIS_REPLY_NIL: /* Nothing... */ break; case REDIS_REPLY_ERROR: out = sdscatlen(out,r->str,r->len); out = sdscatlen(out,"\n",1); break; case REDIS_REPLY_STATUS: case REDIS_REPLY_STRING: out = sdscatlen(out,r->str,r->len); break; case REDIS_REPLY_INTEGER: out = sdscatprintf(out,"%lld",r->integer); break; case REDIS_REPLY_ARRAY: for (i = 0; i < r->elements; i++) { if (i > 0) out = sdscat(out,config.mb_delim); tmp = cliFormatReplyRaw(r->element[i]); out = sdscatlen(out,tmp,sdslen(tmp)); sdsfree(tmp); } break; default: fprintf(stderr,"Unknown reply type: %d\n", r->type); exit(1); } return out; } static sds cliFormatReplyCSV(redisReply *r) { unsigned int i; sds out = sdsempty(); switch (r->type) { case REDIS_REPLY_ERROR: out = sdscat(out,"ERROR,"); out = sdscatrepr(out,r->str,strlen(r->str)); break; case REDIS_REPLY_STATUS: out = sdscatrepr(out,r->str,r->len); break; case REDIS_REPLY_INTEGER: out = sdscatprintf(out,"%lld",r->integer); break; case REDIS_REPLY_STRING: out = sdscatrepr(out,r->str,r->len); break; case REDIS_REPLY_NIL: out = sdscat(out,"NIL\n"); break; case REDIS_REPLY_ARRAY: for (i = 0; i < r->elements; i++) { sds tmp = cliFormatReplyCSV(r->element[i]); out = sdscatlen(out,tmp,sdslen(tmp)); if (i != r->elements-1) out = sdscat(out,","); sdsfree(tmp); } break; default: fprintf(stderr,"Unknown reply type: %d\n", r->type); exit(1); } return out; } static int cliReadReply(int output_raw_strings) { void *_reply; redisReply *reply; sds out = NULL; int output = 1; if (redisGetReply(context,&_reply) != REDIS_OK) { if (config.shutdown) return REDIS_OK; if (config.interactive) { /* Filter cases where we should reconnect */ if (context->err == REDIS_ERR_IO && errno == ECONNRESET) return REDIS_ERR; if (context->err == REDIS_ERR_EOF) return REDIS_ERR; } cliPrintContextError(); exit(1); return REDIS_ERR; /* avoid compiler warning */ } reply = (redisReply*)_reply; /* Check if we need to connect to a different node and reissue the * request. */ if (config.cluster_mode && reply->type == REDIS_REPLY_ERROR && (!strncmp(reply->str,"MOVED",5) || !strcmp(reply->str,"ASK"))) { char *p = reply->str, *s; int slot; output = 0; /* Comments show the position of the pointer as: * * [S] for pointer 's' * [P] for pointer 'p' */ s = strchr(p,' '); /* MOVED[S]3999 127.0.0.1:6381 */ p = strchr(s+1,' '); /* MOVED[S]3999[P]127.0.0.1:6381 */ *p = '\0'; slot = atoi(s+1); s = strchr(p+1,':'); /* MOVED 3999[P]127.0.0.1[S]6381 */ *s = '\0'; sdsfree(config.hostip); config.hostip = sdsnew(p+1); config.hostport = atoi(s+1); if (config.interactive) printf("-> Redirected to slot [%d] located at %s:%d\n", slot, config.hostip, config.hostport); config.cluster_reissue_command = 1; } if (output) { if (output_raw_strings) { out = cliFormatReplyRaw(reply); } else { if (config.output == OUTPUT_RAW) { out = cliFormatReplyRaw(reply); out = sdscat(out,"\n"); } else if (config.output == OUTPUT_STANDARD) { out = cliFormatReplyTTY(reply,""); } else if (config.output == OUTPUT_CSV) { out = cliFormatReplyCSV(reply); out = sdscat(out,"\n"); } } fwrite(out,sdslen(out),1,stdout); sdsfree(out); } freeReplyObject(reply); return REDIS_OK; } static int cliSendCommand(int argc, char **argv, int repeat) { char *command = argv[0]; size_t *argvlen; int j, output_raw; if (!strcasecmp(command,"help") || !strcasecmp(command,"?")) { cliOutputHelp(--argc, ++argv); return REDIS_OK; } if (context == NULL) return REDIS_ERR; output_raw = 0; if (!strcasecmp(command,"info") || (argc == 2 && !strcasecmp(command,"cluster") && (!strcasecmp(argv[1],"nodes") || !strcasecmp(argv[1],"info"))) || (argc == 2 && !strcasecmp(command,"client") && !strcasecmp(argv[1],"list"))) { output_raw = 1; } if (!strcasecmp(command,"shutdown")) config.shutdown = 1; if (!strcasecmp(command,"monitor")) config.monitor_mode = 1; if (!strcasecmp(command,"subscribe") || !strcasecmp(command,"psubscribe")) config.pubsub_mode = 1; /* Setup argument length */ argvlen = malloc(argc*sizeof(size_t)); for (j = 0; j < argc; j++) argvlen[j] = sdslen(argv[j]); while(repeat--) { redisAppendCommandArgv(context,argc,(const char**)argv,argvlen); while (config.monitor_mode) { if (cliReadReply(output_raw) != REDIS_OK) exit(1); fflush(stdout); } if (config.pubsub_mode) { if (config.output != OUTPUT_RAW) printf("Reading messages... (press Ctrl-C to quit)\n"); while (1) { if (cliReadReply(output_raw) != REDIS_OK) exit(1); } } if (cliReadReply(output_raw) != REDIS_OK) { free(argvlen); return REDIS_ERR; } else { /* Store database number when SELECT was successfully executed. */ if (!strcasecmp(command,"select") && argc == 2) { config.dbnum = atoi(argv[1]); cliRefreshPrompt(); } } if (config.interval) usleep(config.interval); fflush(stdout); /* Make it grep friendly */ } free(argvlen); return REDIS_OK; } /* Send the INFO command, reconnecting the link if needed. */ static redisReply *reconnectingInfo(void) { redisContext *c = context; redisReply *reply = NULL; int tries = 0; assert(!c->err); while(reply == NULL) { while (c->err & (REDIS_ERR_IO | REDIS_ERR_EOF)) { printf("Reconnecting (%d)...\r", ++tries); fflush(stdout); redisFree(c); c = redisConnect(config.hostip,config.hostport); usleep(1000000); } reply = redisCommand(c,"INFO"); if (c->err && !(c->err & (REDIS_ERR_IO | REDIS_ERR_EOF))) { fprintf(stderr, "Error: %s\n", c->errstr); exit(1); } else if (tries > 0) { printf("\n"); } } context = c; return reply; } /*------------------------------------------------------------------------------ * User interface *--------------------------------------------------------------------------- */ static int parseOptions(int argc, char **argv) { int i; for (i = 1; i < argc; i++) { int lastarg = i==argc-1; if (!strcmp(argv[i],"-h") && !lastarg) { sdsfree(config.hostip); config.hostip = sdsnew(argv[++i]); } else if (!strcmp(argv[i],"-h") && lastarg) { usage(); } else if (!strcmp(argv[i],"--help")) { usage(); } else if (!strcmp(argv[i],"-x")) { config.stdinarg = 1; } else if (!strcmp(argv[i],"-p") && !lastarg) { config.hostport = atoi(argv[++i]); } else if (!strcmp(argv[i],"-s") && !lastarg) { config.hostsocket = argv[++i]; } else if (!strcmp(argv[i],"-r") && !lastarg) { config.repeat = strtoll(argv[++i],NULL,10); } else if (!strcmp(argv[i],"-i") && !lastarg) { double seconds = atof(argv[++i]); config.interval = seconds*1000000; } else if (!strcmp(argv[i],"-n") && !lastarg) { config.dbnum = atoi(argv[++i]); } else if (!strcmp(argv[i],"-a") && !lastarg) { config.auth = argv[++i]; } else if (!strcmp(argv[i],"--raw")) { config.output = OUTPUT_RAW; } else if (!strcmp(argv[i],"--csv")) { config.output = OUTPUT_CSV; } else if (!strcmp(argv[i],"--latency")) { config.latency_mode = 1; } else if (!strcmp(argv[i],"--latency-history")) { config.latency_mode = 1; config.latency_history = 1; } else if (!strcmp(argv[i],"--slave")) { config.slave_mode = 1; } else if (!strcmp(argv[i],"--stat")) { config.stat_mode = 1; } else if (!strcmp(argv[i],"--rdb") && !lastarg) { config.getrdb_mode = 1; config.rdb_filename = argv[++i]; } else if (!strcmp(argv[i],"--pipe")) { config.pipe_mode = 1; } else if (!strcmp(argv[i],"--bigkeys")) { config.bigkeys = 1; } else if (!strcmp(argv[i],"--eval") && !lastarg) { config.eval = argv[++i]; } else if (!strcmp(argv[i],"-c")) { config.cluster_mode = 1; } else if (!strcmp(argv[i],"-d") && !lastarg) { sdsfree(config.mb_delim); config.mb_delim = sdsnew(argv[++i]); } else if (!strcmp(argv[i],"-v") || !strcmp(argv[i], "--version")) { sds version = cliVersion(); printf("redis-cli %s\n", version); sdsfree(version); exit(0); } else { if (argv[i][0] == '-') { fprintf(stderr, "Unrecognized option or bad number of args for: '%s'\n", argv[i]); exit(1); } else { /* Likely the command name, stop here. */ break; } } } return i; } static sds readArgFromStdin(void) { char buf[1024]; sds arg = sdsempty(); while(1) { int nread = read(fileno(stdin),buf,1024); if (nread == 0) break; else if (nread == -1) { perror("Reading from standard input"); exit(1); } arg = sdscatlen(arg,buf,nread); } return arg; } static void usage() { sds version = cliVersion(); fprintf(stderr, "redis-cli %s\n" "\n" "Usage: redis-cli [OPTIONS] [cmd [arg [arg ...]]]\n" " -h Server hostname (default: 127.0.0.1)\n" " -p Server port (default: 6379)\n" " -s Server socket (overrides hostname and port)\n" " -a Password to use when connecting to the server\n" " -r Execute specified command N times\n" " -i When -r is used, waits seconds per command.\n" " It is possible to specify sub-second times like -i 0.1\n" " -n Database number\n" " -x Read last argument from STDIN\n" " -d Multi-bulk delimiter in for raw formatting (default: \\n)\n" " -c Enable cluster mode (follow -ASK and -MOVED redirections)\n" " --raw Use raw formatting for replies (default when STDOUT is\n" " not a tty)\n" " --latency Enter a special mode continuously sampling latency\n" " --latency-history Like --latency but tracking latency changes over time.\n" " Default time interval is 15 sec. Change it using -i.\n" " --slave Simulate a slave showing commands received from the master\n" " --rdb Transfer an RDB dump from remote server to local file.\n" " --pipe Transfer raw Redis protocol from stdin to server\n" " --bigkeys Sample Redis keys looking for big keys\n" " --eval Send an EVAL command using the Lua script at \n" " --help Output this help and exit\n" " --version Output version and exit\n" "\n" "Examples:\n" " cat /etc/passwd | redis-cli -x set mypasswd\n" " redis-cli get mypasswd\n" " redis-cli -r 100 lpush mylist x\n" " redis-cli -r 100 -i 1 info | grep used_memory_human:\n" " redis-cli --eval myscript.lua key1 key2 , arg1 arg2 arg3\n" " (Note: when using --eval the comma separates KEYS[] from ARGV[] items)\n" "\n" "When no command is given, redis-cli starts in interactive mode.\n" "Type \"help\" in interactive mode for information on available commands.\n" "\n", version); sdsfree(version); exit(1); } /* Turn the plain C strings into Sds strings */ static char **convertToSds(int count, char** args) { int j; char **sds = zmalloc(sizeof(char*)*count); for(j = 0; j < count; j++) sds[j] = sdsnew(args[j]); return sds; } #define LINE_BUFLEN 4096 static void repl() { sds historyfile = NULL; int history = 0; char *line; int argc; sds *argv; config.interactive = 1; linenoiseSetCompletionCallback(completionCallback); /* Only use history when stdin is a tty. */ if (isatty(fileno(stdin))) { history = 1; if (getenv("HOME") != NULL) { historyfile = sdscatprintf(sdsempty(),"%s/.rediscli_history",getenv("HOME")); linenoiseHistoryLoad(historyfile); } } cliRefreshPrompt(); while((line = linenoise(context ? config.prompt : "not connected> ")) != NULL) { if (line[0] != '\0') { argv = sdssplitargs(line,&argc); if (history) linenoiseHistoryAdd(line); if (historyfile) linenoiseHistorySave(historyfile); if (argv == NULL) { printf("Invalid argument(s)\n"); free(line); continue; } else if (argc > 0) { if (strcasecmp(argv[0],"quit") == 0 || strcasecmp(argv[0],"exit") == 0) { exit(0); } else if (argc == 3 && !strcasecmp(argv[0],"connect")) { sdsfree(config.hostip); config.hostip = sdsnew(argv[1]); config.hostport = atoi(argv[2]); cliRefreshPrompt(); cliConnect(1); } else if (argc == 1 && !strcasecmp(argv[0],"clear")) { linenoiseClearScreen(); } else { long long start_time = mstime(), elapsed; int repeat, skipargs = 0; repeat = atoi(argv[0]); if (argc > 1 && repeat) { skipargs = 1; } else { repeat = 1; } while (1) { config.cluster_reissue_command = 0; if (cliSendCommand(argc-skipargs,argv+skipargs,repeat) != REDIS_OK) { cliConnect(1); /* If we still cannot send the command print error. * We'll try to reconnect the next time. */ if (cliSendCommand(argc-skipargs,argv+skipargs,repeat) != REDIS_OK) cliPrintContextError(); } /* Issue the command again if we got redirected in cluster mode */ if (config.cluster_mode && config.cluster_reissue_command) { cliConnect(1); } else { break; } } elapsed = mstime()-start_time; if (elapsed >= 500) { printf("(%.2fs)\n",(double)elapsed/1000); } } } /* Free the argument vector */ sdsfreesplitres(argv,argc); } /* linenoise() returns malloc-ed lines like readline() */ free(line); } exit(0); } static int noninteractive(int argc, char **argv) { int retval = 0; if (config.stdinarg) { argv = zrealloc(argv, (argc+1)*sizeof(char*)); argv[argc] = readArgFromStdin(); retval = cliSendCommand(argc+1, argv, config.repeat); } else { /* stdin is probably a tty, can be tested with S_ISCHR(s.st_mode) */ retval = cliSendCommand(argc, argv, config.repeat); } return retval; } static int evalMode(int argc, char **argv) { sds script = sdsempty(); FILE *fp; char buf[1024]; size_t nread; char **argv2; int j, got_comma = 0, keys = 0; /* Load the script from the file, as an sds string. */ fp = fopen(config.eval,"r"); if (!fp) { fprintf(stderr, "Can't open file '%s': %s\n", config.eval, strerror(errno)); exit(1); } while((nread = fread(buf,1,sizeof(buf),fp)) != 0) { script = sdscatlen(script,buf,nread); } fclose(fp); /* Create our argument vector */ argv2 = zmalloc(sizeof(sds)*(argc+3)); argv2[0] = sdsnew("EVAL"); argv2[1] = script; for (j = 0; j < argc; j++) { if (!got_comma && argv[j][0] == ',' && argv[j][1] == 0) { got_comma = 1; continue; } argv2[j+3-got_comma] = sdsnew(argv[j]); if (!got_comma) keys++; } argv2[2] = sdscatprintf(sdsempty(),"%d",keys); /* Call it */ return cliSendCommand(argc+3-got_comma, argv2, config.repeat); } #define LATENCY_SAMPLE_RATE 10 /* milliseconds. */ #define LATENCY_HISTORY_DEFAULT_INTERVAL 15000 /* milliseconds. */ static void latencyMode(void) { redisReply *reply; long long start, latency, min = 0, max = 0, tot = 0, count = 0; long long history_interval = config.interval ? config.interval/1000 : LATENCY_HISTORY_DEFAULT_INTERVAL; double avg; long long history_start = mstime(); if (!context) exit(1); while(1) { start = mstime(); reply = redisCommand(context,"PING"); if (reply == NULL) { fprintf(stderr,"\nI/O error\n"); exit(1); } latency = mstime()-start; freeReplyObject(reply); count++; if (count == 1) { min = max = tot = latency; avg = (double) latency; } else { if (latency < min) min = latency; if (latency > max) max = latency; tot += latency; avg = (double) tot/count; } printf("\x1b[0G\x1b[2Kmin: %lld, max: %lld, avg: %.2f (%lld samples)", min, max, avg, count); fflush(stdout); if (config.latency_history && mstime()-history_start > history_interval) { printf(" -- %.2f seconds range\n", (float)(mstime()-history_start)/1000); history_start = mstime(); min = max = tot = count = 0; } usleep(LATENCY_SAMPLE_RATE * 1000); } } /* Sends SYNC and reads the number of bytes in the payload. Used both by * slaveMode() and getRDB(). */ unsigned long long sendSync(int fd) { /* To start we need to send the SYNC command and return the payload. * The hiredis client lib does not understand this part of the protocol * and we don't want to mess with its buffers, so everything is performed * using direct low-level I/O. */ char buf[4096], *p; ssize_t nread; /* Send the SYNC command. */ if (write(fd,"SYNC\r\n",6) != 6) { fprintf(stderr,"Error writing to master\n"); exit(1); } /* Read $\r\n, making sure to read just up to "\n" */ p = buf; while(1) { nread = read(fd,p,1); if (nread <= 0) { fprintf(stderr,"Error reading bulk length while SYNCing\n"); exit(1); } if (*p == '\n' && p != buf) break; if (*p != '\n') p++; } *p = '\0'; if (buf[0] == '-') { printf("SYNC with master failed: %s\n", buf); exit(1); } return strtoull(buf+1,NULL,10); } static void slaveMode(void) { int fd = context->fd; unsigned long long payload = sendSync(fd); char buf[1024]; fprintf(stderr,"SYNC with master, discarding %llu " "bytes of bulk transfer...\n", payload); /* Discard the payload. */ while(payload) { ssize_t nread; nread = read(fd,buf,(payload > sizeof(buf)) ? sizeof(buf) : payload); if (nread <= 0) { fprintf(stderr,"Error reading RDB payload while SYNCing\n"); exit(1); } payload -= nread; } fprintf(stderr,"SYNC done. Logging commands from master.\n"); /* Now we can use hiredis to read the incoming protocol. */ config.output = OUTPUT_CSV; while (cliReadReply(0) == REDIS_OK); } /* This function implements --rdb, so it uses the replication protocol in order * to fetch the RDB file from a remote server. */ static void getRDB(void) { int s = context->fd; int fd; unsigned long long payload = sendSync(s); char buf[4096]; fprintf(stderr,"SYNC sent to master, writing %llu bytes to '%s'\n", payload, config.rdb_filename); /* Write to file. */ if (!strcmp(config.rdb_filename,"-")) { fd = STDOUT_FILENO; } else { fd = open(config.rdb_filename, O_CREAT|O_WRONLY, 0644); if (fd == -1) { fprintf(stderr, "Error opening '%s': %s\n", config.rdb_filename, strerror(errno)); exit(1); } } while(payload) { ssize_t nread, nwritten; nread = read(s,buf,(payload > sizeof(buf)) ? sizeof(buf) : payload); if (nread <= 0) { fprintf(stderr,"I/O Error reading RDB payload from socket\n"); exit(1); } nwritten = write(fd, buf, nread); if (nwritten != nread) { fprintf(stderr,"Error writing data to file: %s\n", strerror(errno)); exit(1); } payload -= nread; } close(s); /* Close the file descriptor ASAP as fsync() may take time. */ fsync(fd); fprintf(stderr,"Transfer finished with success.\n"); exit(0); } static void pipeMode(void) { int fd = context->fd; long long errors = 0, replies = 0, obuf_len = 0, obuf_pos = 0; char ibuf[1024*16], obuf[1024*16]; /* Input and output buffers */ char aneterr[ANET_ERR_LEN]; redisReader *reader = redisReaderCreate(); redisReply *reply; int eof = 0; /* True once we consumed all the standard input. */ int done = 0; char magic[20]; /* Special reply we recognize. */ srand(time(NULL)); /* Use non blocking I/O. */ if (anetNonBlock(aneterr,fd) == ANET_ERR) { fprintf(stderr, "Can't set the socket in non blocking mode: %s\n", aneterr); exit(1); } /* Transfer raw protocol and read replies from the server at the same * time. */ while(!done) { int mask = AE_READABLE; if (!eof || obuf_len != 0) mask |= AE_WRITABLE; mask = aeWait(fd,mask,1000); /* Handle the readable state: we can read replies from the server. */ if (mask & AE_READABLE) { ssize_t nread; /* Read from socket and feed the hiredis reader. */ do { nread = read(fd,ibuf,sizeof(ibuf)); if (nread == -1 && errno != EAGAIN && errno != EINTR) { fprintf(stderr, "Error reading from the server: %s\n", strerror(errno)); exit(1); } if (nread > 0) redisReaderFeed(reader,ibuf,nread); } while(nread > 0); /* Consume replies. */ do { if (redisReaderGetReply(reader,(void**)&reply) == REDIS_ERR) { fprintf(stderr, "Error reading replies from server\n"); exit(1); } if (reply) { if (reply->type == REDIS_REPLY_ERROR) { fprintf(stderr,"%s\n", reply->str); errors++; } else if (eof && reply->type == REDIS_REPLY_STRING && reply->len == 20) { /* Check if this is the reply to our final ECHO * command. If so everything was received * from the server. */ if (memcmp(reply->str,magic,20) == 0) { printf("Last reply received from server.\n"); done = 1; replies--; } } replies++; freeReplyObject(reply); } } while(reply); } /* Handle the writable state: we can send protocol to the server. */ if (mask & AE_WRITABLE) { while(1) { /* Transfer current buffer to server. */ if (obuf_len != 0) { ssize_t nwritten = write(fd,obuf+obuf_pos,obuf_len); if (nwritten == -1) { if (errno != EAGAIN && errno != EINTR) { fprintf(stderr, "Error writing to the server: %s\n", strerror(errno)); exit(1); } else { nwritten = 0; } } obuf_len -= nwritten; obuf_pos += nwritten; if (obuf_len != 0) break; /* Can't accept more data. */ } /* If buffer is empty, load from stdin. */ if (obuf_len == 0 && !eof) { ssize_t nread = read(STDIN_FILENO,obuf,sizeof(obuf)); if (nread == 0) { char echo[] = "*2\r\n$4\r\nECHO\r\n$20\r\n01234567890123456789\r\n"; int j; eof = 1; /* Everything transferred, so we queue a special * ECHO command that we can match in the replies * to make sure everything was read from the server. */ for (j = 0; j < 20; j++) magic[j] = rand() & 0xff; memcpy(echo+19,magic,20); memcpy(obuf,echo,sizeof(echo)-1); obuf_len = sizeof(echo)-1; obuf_pos = 0; printf("All data transferred. Waiting for the last reply...\n"); } else if (nread == -1) { fprintf(stderr, "Error reading from stdin: %s\n", strerror(errno)); exit(1); } else { obuf_len = nread; obuf_pos = 0; } } if (obuf_len == 0 && eof) break; } } } redisReaderFree(reader); printf("errors: %lld, replies: %lld\n", errors, replies); if (errors) exit(1); else exit(0); } #define TYPE_STRING 0 #define TYPE_LIST 1 #define TYPE_SET 2 #define TYPE_HASH 3 #define TYPE_ZSET 4 static void findBigKeys(void) { unsigned long long biggest[5] = {0,0,0,0,0}; unsigned long long samples = 0; redisReply *reply1, *reply2, *reply3 = NULL; char *sizecmd, *typename[] = {"string","list","set","hash","zset"}; char *typeunit[] = {"bytes","items","members","fields","members"}; int type; printf("\n# Press ctrl+c when you have had enough of it... :)\n"); printf("# You can use -i 0.1 to sleep 0.1 sec every 100 sampled keys\n"); printf("# in order to reduce server load (usually not needed).\n\n"); while(1) { /* Sample with RANDOMKEY */ reply1 = redisCommand(context,"RANDOMKEY"); if (reply1 == NULL) { fprintf(stderr,"\nI/O error\n"); exit(1); } else if (reply1->type == REDIS_REPLY_ERROR) { fprintf(stderr, "RANDOMKEY error: %s\n", reply1->str); exit(1); } else if (reply1->type == REDIS_REPLY_NIL) { fprintf(stderr, "It looks like the database is empty!\n"); exit(1); } /* Get the key type */ reply2 = redisCommand(context,"TYPE %s",reply1->str); assert(reply2 && reply2->type == REDIS_REPLY_STATUS); samples++; /* Get the key "size" */ if (!strcmp(reply2->str,"string")) { sizecmd = "STRLEN"; type = TYPE_STRING; } else if (!strcmp(reply2->str,"list")) { sizecmd = "LLEN"; type = TYPE_LIST; } else if (!strcmp(reply2->str,"set")) { sizecmd = "SCARD"; type = TYPE_SET; } else if (!strcmp(reply2->str,"hash")) { sizecmd = "HLEN"; type = TYPE_HASH; } else if (!strcmp(reply2->str,"zset")) { sizecmd = "ZCARD"; type = TYPE_ZSET; } else if (!strcmp(reply2->str,"none")) { freeReplyObject(reply1); freeReplyObject(reply2); freeReplyObject(reply3); continue; } else { fprintf(stderr, "Unknown key type '%s' for key '%s'\n", reply2->str, reply1->str); exit(1); } reply3 = redisCommand(context,"%s %s", sizecmd, reply1->str); if (reply3 && reply3->type == REDIS_REPLY_INTEGER) { if (biggest[type] < reply3->integer) { printf("Biggest %-6s found so far '%s' with %llu %s.\n", typename[type], reply1->str, (unsigned long long) reply3->integer, typeunit[type]); biggest[type] = reply3->integer; } } if ((samples % 1000000) == 0) printf("(%llu keys sampled)\n", samples); if ((samples % 100) == 0 && config.interval) usleep(config.interval); freeReplyObject(reply1); freeReplyObject(reply2); if (reply3) freeReplyObject(reply3); } } /* Return the specified INFO field from the INFO command output "info". * A new buffer is allocated for the result, that needs to be free'd. * If the field is not found NULL is returned. */ static char *getInfoField(char *info, char *field) { char *p = strstr(info,field); char *n1, *n2; char *result; if (!p) return NULL; p += strlen(field)+1; n1 = strchr(p,'\r'); n2 = strchr(p,','); if (n2 && n2 < n1) n1 = n2; result = malloc(sizeof(char)*(n1-p)+1); memcpy(result,p,(n1-p)); result[n1-p] = '\0'; return result; } /* Like the above function but automatically convert the result into * a long. On error (missing field) LONG_MIN is returned. */ static long getLongInfoField(char *info, char *field) { char *value = getInfoField(info,field); long l; if (!value) return LONG_MIN; l = strtol(value,NULL,10); free(value); return l; } /* Convert number of bytes into a human readable string of the form: * 100B, 2G, 100M, 4K, and so forth. */ void bytesToHuman(char *s, long long n) { double d; if (n < 0) { *s = '-'; s++; n = -n; } if (n < 1024) { /* Bytes */ sprintf(s,"%lluB",n); return; } else if (n < (1024*1024)) { d = (double)n/(1024); sprintf(s,"%.2fK",d); } else if (n < (1024LL*1024*1024)) { d = (double)n/(1024*1024); sprintf(s,"%.2fM",d); } else if (n < (1024LL*1024*1024*1024)) { d = (double)n/(1024LL*1024*1024); sprintf(s,"%.2fG",d); } } static void statMode() { redisReply *reply; long aux, requests = 0; int i = 0; while(1) { char buf[64]; int j; reply = reconnectingInfo(); if (reply->type == REDIS_REPLY_ERROR) { printf("ERROR: %s\n", reply->str); exit(1); } if ((i++ % 20) == 0) { printf( "------- data ------ --------------------- load -------------------- - child -\n" "keys mem clients blocked requests connections \n"); } /* Keys */ aux = 0; for (j = 0; j < 20; j++) { long k; sprintf(buf,"db%d:keys",j); k = getLongInfoField(reply->str,buf); if (k == LONG_MIN) continue; aux += k; } sprintf(buf,"%ld",aux); printf("%-11s",buf); /* Used memory */ aux = getLongInfoField(reply->str,"used_memory"); bytesToHuman(buf,aux); printf("%-8s",buf); /* Clients */ aux = getLongInfoField(reply->str,"connected_clients"); sprintf(buf,"%ld",aux); printf(" %-8s",buf); /* Blocked (BLPOPPING) Clients */ aux = getLongInfoField(reply->str,"blocked_clients"); sprintf(buf,"%ld",aux); printf("%-8s",buf); /* Requets */ aux = getLongInfoField(reply->str,"total_commands_processed"); sprintf(buf,"%ld (+%ld)",aux,requests == 0 ? 0 : aux-requests); printf("%-19s",buf); requests = aux; /* Connections */ aux = getLongInfoField(reply->str,"total_connections_received"); sprintf(buf,"%ld",aux); printf(" %-12s",buf); /* Children */ aux = getLongInfoField(reply->str,"bgsave_in_progress"); aux |= getLongInfoField(reply->str,"aof_rewrite_in_progress") << 1; switch(aux) { case 0: break; case 1: printf("SAVE"); break; case 2: printf("AOF"); break; case 3: printf("SAVE+AOF"); break; } printf("\n"); freeReplyObject(reply); usleep(config.interval); } } int main(int argc, char **argv) { int firstarg; config.hostip = sdsnew("127.0.0.1"); config.hostport = 6379; config.hostsocket = NULL; config.repeat = 1; config.interval = 0; config.dbnum = 0; config.interactive = 0; config.shutdown = 0; config.monitor_mode = 0; config.pubsub_mode = 0; config.latency_mode = 0; config.latency_history = 0; config.cluster_mode = 0; config.slave_mode = 0; config.getrdb_mode = 0; config.rdb_filename = NULL; config.pipe_mode = 0; config.bigkeys = 0; config.stdinarg = 0; config.auth = NULL; config.eval = NULL; if (!isatty(fileno(stdout)) && (getenv("FAKETTY") == NULL)) config.output = OUTPUT_RAW; else config.output = OUTPUT_STANDARD; config.mb_delim = sdsnew("\n"); cliInitHelp(); firstarg = parseOptions(argc,argv); argc -= firstarg; argv += firstarg; /* Latency mode */ if (config.latency_mode) { if (cliConnect(0) == REDIS_ERR) exit(1); latencyMode(); } /* Slave mode */ if (config.slave_mode) { if (cliConnect(0) == REDIS_ERR) exit(1); slaveMode(); } /* Get RDB mode. */ if (config.getrdb_mode) { if (cliConnect(0) == REDIS_ERR) exit(1); getRDB(); } /* Pipe mode */ if (config.pipe_mode) { if (cliConnect(0) == REDIS_ERR) exit(1); pipeMode(); } /* Find big keys */ if (config.bigkeys) { if (cliConnect(0) == REDIS_ERR) exit(1); findBigKeys(); } /* Stat mode */ if (config.stat_mode) { if (cliConnect(0) == REDIS_ERR) exit(1); if (config.interval == 0) config.interval = 1000000; statMode(); } /* Start interactive mode when no command is provided */ if (argc == 0 && !config.eval) { /* Note that in repl mode we don't abort on connection error. * A new attempt will be performed for every command send. */ cliConnect(0); repl(); } /* Otherwise, we have some arguments to execute */ if (cliConnect(0) != REDIS_OK) exit(1); if (config.eval) { return evalMode(argc,argv); } else { return noninteractive(argc,convertToSds(argc,argv)); } } redis-2.6.16/src/redis.c000066400000000000000000003243111220734223100147550ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" #include "slowlog.h" #include "bio.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* Our shared "common" objects */ struct sharedObjectsStruct shared; /* Global vars that are actually used as constants. The following double * values are used for double on-disk serialization, and are initialized * at runtime to avoid strange compiler optimizations. */ double R_Zero, R_PosInf, R_NegInf, R_Nan; /*================================= Globals ================================= */ /* Global vars */ struct redisServer server; /* server global state */ struct redisCommand *commandTable; /* Our command table. * * Every entry is composed of the following fields: * * name: a string representing the command name. * function: pointer to the C function implementing the command. * arity: number of arguments, it is possible to use -N to say >= N * sflags: command flags as string. See below for a table of flags. * flags: flags as bitmask. Computed by Redis using the 'sflags' field. * get_keys_proc: an optional function to get key arguments from a command. * This is only used when the following three fields are not * enough to specify what arguments are keys. * first_key_index: first argument that is a key * last_key_index: last argument that is a key * key_step: step to get all the keys from first to last argument. For instance * in MSET the step is two since arguments are key,val,key,val,... * microseconds: microseconds of total execution time for this command. * calls: total number of calls of this command. * * The flags, microseconds and calls fields are computed by Redis and should * always be set to zero. * * Command flags are expressed using strings where every character represents * a flag. Later the populateCommandTable() function will take care of * populating the real 'flags' field using this characters. * * This is the meaning of the flags: * * w: write command (may modify the key space). * r: read command (will never modify the key space). * m: may increase memory usage once called. Don't allow if out of memory. * a: admin command, like SAVE or SHUTDOWN. * p: Pub/Sub related command. * f: force replication of this command, regardless of server.dirty. * s: command not allowed in scripts. * R: random command. Command is not deterministic, that is, the same command * with the same arguments, with the same key space, may have different * results. For instance SPOP and RANDOMKEY are two random commands. * S: Sort command output array if called from script, so that the output * is deterministic. * l: Allow command while loading the database. * t: Allow command while a slave has stale data but is not allowed to * server this data. Normally no command is accepted in this condition * but just a few. * M: Do not automatically propagate the command on MONITOR. */ struct redisCommand redisCommandTable[] = { {"get",getCommand,2,"r",0,NULL,1,1,1,0,0}, {"set",setCommand,-3,"wm",0,noPreloadGetKeys,1,1,1,0,0}, {"setnx",setnxCommand,3,"wm",0,noPreloadGetKeys,1,1,1,0,0}, {"setex",setexCommand,4,"wm",0,noPreloadGetKeys,1,1,1,0,0}, {"psetex",psetexCommand,4,"wm",0,noPreloadGetKeys,1,1,1,0,0}, {"append",appendCommand,3,"wm",0,NULL,1,1,1,0,0}, {"strlen",strlenCommand,2,"r",0,NULL,1,1,1,0,0}, {"del",delCommand,-2,"w",0,noPreloadGetKeys,1,-1,1,0,0}, {"exists",existsCommand,2,"r",0,NULL,1,1,1,0,0}, {"setbit",setbitCommand,4,"wm",0,NULL,1,1,1,0,0}, {"getbit",getbitCommand,3,"r",0,NULL,1,1,1,0,0}, {"setrange",setrangeCommand,4,"wm",0,NULL,1,1,1,0,0}, {"getrange",getrangeCommand,4,"r",0,NULL,1,1,1,0,0}, {"substr",getrangeCommand,4,"r",0,NULL,1,1,1,0,0}, {"incr",incrCommand,2,"wm",0,NULL,1,1,1,0,0}, {"decr",decrCommand,2,"wm",0,NULL,1,1,1,0,0}, {"mget",mgetCommand,-2,"r",0,NULL,1,-1,1,0,0}, {"rpush",rpushCommand,-3,"wm",0,NULL,1,1,1,0,0}, {"lpush",lpushCommand,-3,"wm",0,NULL,1,1,1,0,0}, {"rpushx",rpushxCommand,3,"wm",0,NULL,1,1,1,0,0}, {"lpushx",lpushxCommand,3,"wm",0,NULL,1,1,1,0,0}, {"linsert",linsertCommand,5,"wm",0,NULL,1,1,1,0,0}, {"rpop",rpopCommand,2,"w",0,NULL,1,1,1,0,0}, {"lpop",lpopCommand,2,"w",0,NULL,1,1,1,0,0}, {"brpop",brpopCommand,-3,"ws",0,NULL,1,1,1,0,0}, {"brpoplpush",brpoplpushCommand,4,"wms",0,NULL,1,2,1,0,0}, {"blpop",blpopCommand,-3,"ws",0,NULL,1,-2,1,0,0}, {"llen",llenCommand,2,"r",0,NULL,1,1,1,0,0}, {"lindex",lindexCommand,3,"r",0,NULL,1,1,1,0,0}, {"lset",lsetCommand,4,"wm",0,NULL,1,1,1,0,0}, {"lrange",lrangeCommand,4,"r",0,NULL,1,1,1,0,0}, {"ltrim",ltrimCommand,4,"w",0,NULL,1,1,1,0,0}, {"lrem",lremCommand,4,"w",0,NULL,1,1,1,0,0}, {"rpoplpush",rpoplpushCommand,3,"wm",0,NULL,1,2,1,0,0}, {"sadd",saddCommand,-3,"wm",0,NULL,1,1,1,0,0}, {"srem",sremCommand,-3,"w",0,NULL,1,1,1,0,0}, {"smove",smoveCommand,4,"w",0,NULL,1,2,1,0,0}, {"sismember",sismemberCommand,3,"r",0,NULL,1,1,1,0,0}, {"scard",scardCommand,2,"r",0,NULL,1,1,1,0,0}, {"spop",spopCommand,2,"wRs",0,NULL,1,1,1,0,0}, {"srandmember",srandmemberCommand,-2,"rR",0,NULL,1,1,1,0,0}, {"sinter",sinterCommand,-2,"rS",0,NULL,1,-1,1,0,0}, {"sinterstore",sinterstoreCommand,-3,"wm",0,NULL,1,-1,1,0,0}, {"sunion",sunionCommand,-2,"rS",0,NULL,1,-1,1,0,0}, {"sunionstore",sunionstoreCommand,-3,"wm",0,NULL,1,-1,1,0,0}, {"sdiff",sdiffCommand,-2,"rS",0,NULL,1,-1,1,0,0}, {"sdiffstore",sdiffstoreCommand,-3,"wm",0,NULL,1,-1,1,0,0}, {"smembers",sinterCommand,2,"rS",0,NULL,1,1,1,0,0}, {"zadd",zaddCommand,-4,"wm",0,NULL,1,1,1,0,0}, {"zincrby",zincrbyCommand,4,"wm",0,NULL,1,1,1,0,0}, {"zrem",zremCommand,-3,"w",0,NULL,1,1,1,0,0}, {"zremrangebyscore",zremrangebyscoreCommand,4,"w",0,NULL,1,1,1,0,0}, {"zremrangebyrank",zremrangebyrankCommand,4,"w",0,NULL,1,1,1,0,0}, {"zunionstore",zunionstoreCommand,-4,"wm",0,zunionInterGetKeys,0,0,0,0,0}, {"zinterstore",zinterstoreCommand,-4,"wm",0,zunionInterGetKeys,0,0,0,0,0}, {"zrange",zrangeCommand,-4,"r",0,NULL,1,1,1,0,0}, {"zrangebyscore",zrangebyscoreCommand,-4,"r",0,NULL,1,1,1,0,0}, {"zrevrangebyscore",zrevrangebyscoreCommand,-4,"r",0,NULL,1,1,1,0,0}, {"zcount",zcountCommand,4,"r",0,NULL,1,1,1,0,0}, {"zrevrange",zrevrangeCommand,-4,"r",0,NULL,1,1,1,0,0}, {"zcard",zcardCommand,2,"r",0,NULL,1,1,1,0,0}, {"zscore",zscoreCommand,3,"r",0,NULL,1,1,1,0,0}, {"zrank",zrankCommand,3,"r",0,NULL,1,1,1,0,0}, {"zrevrank",zrevrankCommand,3,"r",0,NULL,1,1,1,0,0}, {"hset",hsetCommand,4,"wm",0,NULL,1,1,1,0,0}, {"hsetnx",hsetnxCommand,4,"wm",0,NULL,1,1,1,0,0}, {"hget",hgetCommand,3,"r",0,NULL,1,1,1,0,0}, {"hmset",hmsetCommand,-4,"wm",0,NULL,1,1,1,0,0}, {"hmget",hmgetCommand,-3,"r",0,NULL,1,1,1,0,0}, {"hincrby",hincrbyCommand,4,"wm",0,NULL,1,1,1,0,0}, {"hincrbyfloat",hincrbyfloatCommand,4,"wm",0,NULL,1,1,1,0,0}, {"hdel",hdelCommand,-3,"w",0,NULL,1,1,1,0,0}, {"hlen",hlenCommand,2,"r",0,NULL,1,1,1,0,0}, {"hkeys",hkeysCommand,2,"rS",0,NULL,1,1,1,0,0}, {"hvals",hvalsCommand,2,"rS",0,NULL,1,1,1,0,0}, {"hgetall",hgetallCommand,2,"r",0,NULL,1,1,1,0,0}, {"hexists",hexistsCommand,3,"r",0,NULL,1,1,1,0,0}, {"incrby",incrbyCommand,3,"wm",0,NULL,1,1,1,0,0}, {"decrby",decrbyCommand,3,"wm",0,NULL,1,1,1,0,0}, {"incrbyfloat",incrbyfloatCommand,3,"wm",0,NULL,1,1,1,0,0}, {"getset",getsetCommand,3,"wm",0,NULL,1,1,1,0,0}, {"mset",msetCommand,-3,"wm",0,NULL,1,-1,2,0,0}, {"msetnx",msetnxCommand,-3,"wm",0,NULL,1,-1,2,0,0}, {"randomkey",randomkeyCommand,1,"rR",0,NULL,0,0,0,0,0}, {"select",selectCommand,2,"rl",0,NULL,0,0,0,0,0}, {"move",moveCommand,3,"w",0,NULL,1,1,1,0,0}, {"rename",renameCommand,3,"w",0,renameGetKeys,1,2,1,0,0}, {"renamenx",renamenxCommand,3,"w",0,renameGetKeys,1,2,1,0,0}, {"expire",expireCommand,3,"w",0,NULL,1,1,1,0,0}, {"expireat",expireatCommand,3,"w",0,NULL,1,1,1,0,0}, {"pexpire",pexpireCommand,3,"w",0,NULL,1,1,1,0,0}, {"pexpireat",pexpireatCommand,3,"w",0,NULL,1,1,1,0,0}, {"keys",keysCommand,2,"rS",0,NULL,0,0,0,0,0}, {"dbsize",dbsizeCommand,1,"r",0,NULL,0,0,0,0,0}, {"auth",authCommand,2,"rsl",0,NULL,0,0,0,0,0}, {"ping",pingCommand,1,"r",0,NULL,0,0,0,0,0}, {"echo",echoCommand,2,"r",0,NULL,0,0,0,0,0}, {"save",saveCommand,1,"ars",0,NULL,0,0,0,0,0}, {"bgsave",bgsaveCommand,1,"ar",0,NULL,0,0,0,0,0}, {"bgrewriteaof",bgrewriteaofCommand,1,"ar",0,NULL,0,0,0,0,0}, {"shutdown",shutdownCommand,-1,"ar",0,NULL,0,0,0,0,0}, {"lastsave",lastsaveCommand,1,"rR",0,NULL,0,0,0,0,0}, {"type",typeCommand,2,"r",0,NULL,1,1,1,0,0}, {"multi",multiCommand,1,"rs",0,NULL,0,0,0,0,0}, {"exec",execCommand,1,"sM",0,NULL,0,0,0,0,0}, {"discard",discardCommand,1,"rs",0,NULL,0,0,0,0,0}, {"sync",syncCommand,1,"ars",0,NULL,0,0,0,0,0}, {"replconf",replconfCommand,-1,"ars",0,NULL,0,0,0,0,0}, {"flushdb",flushdbCommand,1,"w",0,NULL,0,0,0,0,0}, {"flushall",flushallCommand,1,"w",0,NULL,0,0,0,0,0}, {"sort",sortCommand,-2,"wm",0,NULL,1,1,1,0,0}, {"info",infoCommand,-1,"rlt",0,NULL,0,0,0,0,0}, {"monitor",monitorCommand,1,"ars",0,NULL,0,0,0,0,0}, {"ttl",ttlCommand,2,"r",0,NULL,1,1,1,0,0}, {"pttl",pttlCommand,2,"r",0,NULL,1,1,1,0,0}, {"persist",persistCommand,2,"w",0,NULL,1,1,1,0,0}, {"slaveof",slaveofCommand,3,"ast",0,NULL,0,0,0,0,0}, {"debug",debugCommand,-2,"as",0,NULL,0,0,0,0,0}, {"config",configCommand,-2,"ar",0,NULL,0,0,0,0,0}, {"subscribe",subscribeCommand,-2,"rpslt",0,NULL,0,0,0,0,0}, {"unsubscribe",unsubscribeCommand,-1,"rpslt",0,NULL,0,0,0,0,0}, {"psubscribe",psubscribeCommand,-2,"rpslt",0,NULL,0,0,0,0,0}, {"punsubscribe",punsubscribeCommand,-1,"rpslt",0,NULL,0,0,0,0,0}, {"publish",publishCommand,3,"pfltr",0,NULL,0,0,0,0,0}, {"watch",watchCommand,-2,"rs",0,noPreloadGetKeys,1,-1,1,0,0}, {"unwatch",unwatchCommand,1,"rs",0,NULL,0,0,0,0,0}, {"restore",restoreCommand,4,"awm",0,NULL,1,1,1,0,0}, {"migrate",migrateCommand,6,"aw",0,NULL,0,0,0,0,0}, {"dump",dumpCommand,2,"ar",0,NULL,1,1,1,0,0}, {"object",objectCommand,-2,"r",0,NULL,2,2,2,0,0}, {"client",clientCommand,-2,"ar",0,NULL,0,0,0,0,0}, {"eval",evalCommand,-3,"s",0,zunionInterGetKeys,0,0,0,0,0}, {"evalsha",evalShaCommand,-3,"s",0,zunionInterGetKeys,0,0,0,0,0}, {"slowlog",slowlogCommand,-2,"r",0,NULL,0,0,0,0,0}, {"script",scriptCommand,-2,"ras",0,NULL,0,0,0,0,0}, {"time",timeCommand,1,"rR",0,NULL,0,0,0,0,0}, {"bitop",bitopCommand,-4,"wm",0,NULL,2,-1,1,0,0}, {"bitcount",bitcountCommand,-2,"r",0,NULL,1,1,1,0,0} }; /*============================ Utility functions ============================ */ /* Low level logging. To use only for very big messages, otherwise * redisLog() is to prefer. */ void redisLogRaw(int level, const char *msg) { const int syslogLevelMap[] = { LOG_DEBUG, LOG_INFO, LOG_NOTICE, LOG_WARNING }; const char *c = ".-*#"; FILE *fp; char buf[64]; int rawmode = (level & REDIS_LOG_RAW); level &= 0xff; /* clear flags */ if (level < server.verbosity) return; fp = (server.logfile == NULL) ? stdout : fopen(server.logfile,"a"); if (!fp) return; if (rawmode) { fprintf(fp,"%s",msg); } else { int off; struct timeval tv; gettimeofday(&tv,NULL); off = strftime(buf,sizeof(buf),"%d %b %H:%M:%S.",localtime(&tv.tv_sec)); snprintf(buf+off,sizeof(buf)-off,"%03d",(int)tv.tv_usec/1000); fprintf(fp,"[%d] %s %c %s\n",(int)getpid(),buf,c[level],msg); } fflush(fp); if (server.logfile) fclose(fp); if (server.syslog_enabled) syslog(syslogLevelMap[level], "%s", msg); } /* Like redisLogRaw() but with printf-alike support. This is the function that * is used across the code. The raw version is only used in order to dump * the INFO output on crash. */ void redisLog(int level, const char *fmt, ...) { va_list ap; char msg[REDIS_MAX_LOGMSG_LEN]; if ((level&0xff) < server.verbosity) return; va_start(ap, fmt); vsnprintf(msg, sizeof(msg), fmt, ap); va_end(ap); redisLogRaw(level,msg); } /* Log a fixed message without printf-alike capabilities, in a way that is * safe to call from a signal handler. * * We actually use this only for signals that are not fatal from the point * of view of Redis. Signals that are going to kill the server anyway and * where we need printf-alike features are served by redisLog(). */ void redisLogFromHandler(int level, const char *msg) { int fd; char buf[64]; if ((level&0xff) < server.verbosity || (server.logfile == NULL && server.daemonize)) return; fd = server.logfile ? open(server.logfile, O_APPEND|O_CREAT|O_WRONLY, 0644) : STDOUT_FILENO; if (fd == -1) return; ll2string(buf,sizeof(buf),getpid()); if (write(fd,"[",1) == -1) goto err; if (write(fd,buf,strlen(buf)) == -1) goto err; if (write(fd," | signal handler] (",20) == -1) goto err; ll2string(buf,sizeof(buf),time(NULL)); if (write(fd,buf,strlen(buf)) == -1) goto err; if (write(fd,") ",2) == -1) goto err; if (write(fd,msg,strlen(msg)) == -1) goto err; if (write(fd,"\n",1) == -1) goto err; err: if (server.logfile) close(fd); } /* Return the UNIX time in microseconds */ long long ustime(void) { struct timeval tv; long long ust; gettimeofday(&tv, NULL); ust = ((long long)tv.tv_sec)*1000000; ust += tv.tv_usec; return ust; } /* Return the UNIX time in milliseconds */ long long mstime(void) { return ustime()/1000; } /* After an RDB dump or AOF rewrite we exit from children using _exit() instead of * exit(), because the latter may interact with the same file objects used by * the parent process. However if we are testing the coverage normal exit() is * used in order to obtain the right coverage information. */ void exitFromChild(int retcode) { #ifdef COVERAGE_TEST exit(retcode); #else _exit(retcode); #endif } /*====================== Hash table type implementation ==================== */ /* This is an hash table type that uses the SDS dynamic strings library as * keys and radis objects as values (objects can hold SDS strings, * lists, sets). */ void dictVanillaFree(void *privdata, void *val) { DICT_NOTUSED(privdata); zfree(val); } void dictListDestructor(void *privdata, void *val) { DICT_NOTUSED(privdata); listRelease((list*)val); } int dictSdsKeyCompare(void *privdata, const void *key1, const void *key2) { int l1,l2; DICT_NOTUSED(privdata); l1 = sdslen((sds)key1); l2 = sdslen((sds)key2); if (l1 != l2) return 0; return memcmp(key1, key2, l1) == 0; } /* A case insensitive version used for the command lookup table and other * places where case insensitive non binary-safe comparison is needed. */ int dictSdsKeyCaseCompare(void *privdata, const void *key1, const void *key2) { DICT_NOTUSED(privdata); return strcasecmp(key1, key2) == 0; } void dictRedisObjectDestructor(void *privdata, void *val) { DICT_NOTUSED(privdata); if (val == NULL) return; /* Values of swapped out keys as set to NULL */ decrRefCount(val); } void dictSdsDestructor(void *privdata, void *val) { DICT_NOTUSED(privdata); sdsfree(val); } int dictObjKeyCompare(void *privdata, const void *key1, const void *key2) { const robj *o1 = key1, *o2 = key2; return dictSdsKeyCompare(privdata,o1->ptr,o2->ptr); } unsigned int dictObjHash(const void *key) { const robj *o = key; return dictGenHashFunction(o->ptr, sdslen((sds)o->ptr)); } unsigned int dictSdsHash(const void *key) { return dictGenHashFunction((unsigned char*)key, sdslen((char*)key)); } unsigned int dictSdsCaseHash(const void *key) { return dictGenCaseHashFunction((unsigned char*)key, sdslen((char*)key)); } int dictEncObjKeyCompare(void *privdata, const void *key1, const void *key2) { robj *o1 = (robj*) key1, *o2 = (robj*) key2; int cmp; if (o1->encoding == REDIS_ENCODING_INT && o2->encoding == REDIS_ENCODING_INT) return o1->ptr == o2->ptr; o1 = getDecodedObject(o1); o2 = getDecodedObject(o2); cmp = dictSdsKeyCompare(privdata,o1->ptr,o2->ptr); decrRefCount(o1); decrRefCount(o2); return cmp; } unsigned int dictEncObjHash(const void *key) { robj *o = (robj*) key; if (o->encoding == REDIS_ENCODING_RAW) { return dictGenHashFunction(o->ptr, sdslen((sds)o->ptr)); } else { if (o->encoding == REDIS_ENCODING_INT) { char buf[32]; int len; len = ll2string(buf,32,(long)o->ptr); return dictGenHashFunction((unsigned char*)buf, len); } else { unsigned int hash; o = getDecodedObject(o); hash = dictGenHashFunction(o->ptr, sdslen((sds)o->ptr)); decrRefCount(o); return hash; } } } /* Sets type hash table */ dictType setDictType = { dictEncObjHash, /* hash function */ NULL, /* key dup */ NULL, /* val dup */ dictEncObjKeyCompare, /* key compare */ dictRedisObjectDestructor, /* key destructor */ NULL /* val destructor */ }; /* Sorted sets hash (note: a skiplist is used in addition to the hash table) */ dictType zsetDictType = { dictEncObjHash, /* hash function */ NULL, /* key dup */ NULL, /* val dup */ dictEncObjKeyCompare, /* key compare */ dictRedisObjectDestructor, /* key destructor */ NULL /* val destructor */ }; /* Db->dict, keys are sds strings, vals are Redis objects. */ dictType dbDictType = { dictSdsHash, /* hash function */ NULL, /* key dup */ NULL, /* val dup */ dictSdsKeyCompare, /* key compare */ dictSdsDestructor, /* key destructor */ dictRedisObjectDestructor /* val destructor */ }; /* server.lua_scripts sha (as sds string) -> scripts (as robj) cache. */ dictType shaScriptObjectDictType = { dictSdsCaseHash, /* hash function */ NULL, /* key dup */ NULL, /* val dup */ dictSdsKeyCaseCompare, /* key compare */ dictSdsDestructor, /* key destructor */ dictRedisObjectDestructor /* val destructor */ }; /* Db->expires */ dictType keyptrDictType = { dictSdsHash, /* hash function */ NULL, /* key dup */ NULL, /* val dup */ dictSdsKeyCompare, /* key compare */ NULL, /* key destructor */ NULL /* val destructor */ }; /* Command table. sds string -> command struct pointer. */ dictType commandTableDictType = { dictSdsCaseHash, /* hash function */ NULL, /* key dup */ NULL, /* val dup */ dictSdsKeyCaseCompare, /* key compare */ dictSdsDestructor, /* key destructor */ NULL /* val destructor */ }; /* Hash type hash table (note that small hashes are represented with ziplists) */ dictType hashDictType = { dictEncObjHash, /* hash function */ NULL, /* key dup */ NULL, /* val dup */ dictEncObjKeyCompare, /* key compare */ dictRedisObjectDestructor, /* key destructor */ dictRedisObjectDestructor /* val destructor */ }; /* Keylist hash table type has unencoded redis objects as keys and * lists as values. It's used for blocking operations (BLPOP) and to * map swapped keys to a list of clients waiting for this keys to be loaded. */ dictType keylistDictType = { dictObjHash, /* hash function */ NULL, /* key dup */ NULL, /* val dup */ dictObjKeyCompare, /* key compare */ dictRedisObjectDestructor, /* key destructor */ dictListDestructor /* val destructor */ }; int htNeedsResize(dict *dict) { long long size, used; size = dictSlots(dict); used = dictSize(dict); return (size && used && size > DICT_HT_INITIAL_SIZE && (used*100/size < REDIS_HT_MINFILL)); } /* If the percentage of used slots in the HT reaches REDIS_HT_MINFILL * we resize the hash table to save memory */ void tryResizeHashTables(int dbid) { if (htNeedsResize(server.db[dbid].dict)) dictResize(server.db[dbid].dict); if (htNeedsResize(server.db[dbid].expires)) dictResize(server.db[dbid].expires); } /* Our hash table implementation performs rehashing incrementally while * we write/read from the hash table. Still if the server is idle, the hash * table will use two tables for a long time. So we try to use 1 millisecond * of CPU time at every call of this function to perform some rehahsing. * * The function returns 1 if some rehashing was performed, otherwise 0 * is returned. */ int incrementallyRehash(int dbid) { /* Keys dictionary */ if (dictIsRehashing(server.db[dbid].dict)) { dictRehashMilliseconds(server.db[dbid].dict,1); return 1; /* already used our millisecond for this loop... */ } /* Expires */ if (dictIsRehashing(server.db[dbid].expires)) { dictRehashMilliseconds(server.db[dbid].expires,1); return 1; /* already used our millisecond for this loop... */ } return 0; } /* This function is called once a background process of some kind terminates, * as we want to avoid resizing the hash tables when there is a child in order * to play well with copy-on-write (otherwise when a resize happens lots of * memory pages are copied). The goal of this function is to update the ability * for dict.c to resize the hash tables accordingly to the fact we have o not * running childs. */ void updateDictResizePolicy(void) { if (server.rdb_child_pid == -1 && server.aof_child_pid == -1) dictEnableResize(); else dictDisableResize(); } /* ======================= Cron: called every 100 ms ======================== */ /* Helper function for the activeExpireCycle() function. * This function will try to expire the key that is stored in the hash table * entry 'de' of the 'expires' hash table of a Redis database. * * If the key is found to be expired, it is removed from the database and * 1 is returned. Otherwise no operation is performed and 0 is returned. * * When a key is expired, server.stat_expiredkeys is incremented. * * The parameter 'now' is the current time in milliseconds as is passed * to the function to avoid too many gettimeofday() syscalls. */ int activeExpireCycleTryExpire(redisDb *db, struct dictEntry *de, long long now) { long long t = dictGetSignedIntegerVal(de); if (now > t) { sds key = dictGetKey(de); robj *keyobj = createStringObject(key,sdslen(key)); propagateExpire(db,keyobj); dbDelete(db,keyobj); decrRefCount(keyobj); server.stat_expiredkeys++; return 1; } else { return 0; } } /* Try to expire a few timed out keys. The algorithm used is adaptive and * will use few CPU cycles if there are few expiring keys, otherwise * it will get more aggressive to avoid that too much memory is used by * keys that can be removed from the keyspace. * * No more than REDIS_DBCRON_DBS_PER_CALL databases are tested at every * iteration. * * This kind of call is used when Redis detects that timelimit_exit is * true, so there is more work to do, and we do it more incrementally from * the beforeSleep() function of the event loop. * * Expire cycle type: * * If type is ACTIVE_EXPIRE_CYCLE_FAST the function will try to run a * "fast" expire cycle that takes no longer than EXPIRE_FAST_CYCLE_DURATION * microseconds, and is not repeated again before the same amount of time. * * If type is ACTIVE_EXPIRE_CYCLE_SLOW, that normal expire cycle is * executed, where the time limit is a percentage of the REDIS_HZ period * as specified by the REDIS_EXPIRELOOKUPS_TIME_PERC define. */ void activeExpireCycle(int type) { /* This function has some global state in order to continue the work * incrementally across calls. */ static unsigned int current_db = 0; /* Last DB tested. */ static int timelimit_exit = 0; /* Time limit hit in previous call? */ static long long last_fast_cycle = 0; /* When last fast cycle ran. */ unsigned int j, iteration = 0; unsigned int dbs_per_call = REDIS_DBCRON_DBS_PER_CALL; long long start = ustime(), timelimit; if (type == ACTIVE_EXPIRE_CYCLE_FAST) { /* Don't start a fast cycle if the previous cycle did not exited * for time limt. Also don't repeat a fast cycle for the same period * as the fast cycle total duration itself. */ if (!timelimit_exit) return; if (start < last_fast_cycle + ACTIVE_EXPIRE_CYCLE_FAST_DURATION*2) return; last_fast_cycle = start; } /* We usually should test REDIS_DBCRON_DBS_PER_CALL per iteration, with * two exceptions: * * 1) Don't test more DBs than we have. * 2) If last time we hit the time limit, we want to scan all DBs * in this iteration, as there is work to do in some DB and we don't want * expired keys to use memory for too much time. */ if (dbs_per_call > server.dbnum || timelimit_exit) dbs_per_call = server.dbnum; /* We can use at max ACTIVE_EXPIRE_CYCLE_SLOW_TIME_PERC percentage of CPU time * per iteration. Since this function gets called with a frequency of * server.hz times per second, the following is the max amount of * microseconds we can spend in this function. */ timelimit = 1000000*ACTIVE_EXPIRE_CYCLE_SLOW_TIME_PERC/server.hz/100; timelimit_exit = 0; if (timelimit <= 0) timelimit = 1; if (type == ACTIVE_EXPIRE_CYCLE_FAST) timelimit = ACTIVE_EXPIRE_CYCLE_FAST_DURATION; /* in microseconds. */ for (j = 0; j < dbs_per_call; j++) { int expired; redisDb *db = server.db+(current_db % server.dbnum); /* Increment the DB now so we are sure if we run out of time * in the current DB we'll restart from the next. This allows to * distribute the time evenly across DBs. */ current_db++; /* Continue to expire if at the end of the cycle more than 25% * of the keys were expired. */ do { unsigned long num, slots; long long now, ttl_sum; int ttl_samples; /* If there is nothing to expire try next DB ASAP. */ if ((num = dictSize(db->expires)) == 0) { db->avg_ttl = 0; break; } slots = dictSlots(db->expires); now = mstime(); /* When there are less than 1% filled slots getting random * keys is expensive, so stop here waiting for better times... * The dictionary will be resized asap. */ if (num && slots > DICT_HT_INITIAL_SIZE && (num*100/slots < 1)) break; /* The main collection cycle. Sample random keys among keys * with an expire set, checking for expired ones. */ expired = 0; ttl_sum = 0; ttl_samples = 0; if (num > ACTIVE_EXPIRE_CYCLE_LOOKUPS_PER_LOOP) num = ACTIVE_EXPIRE_CYCLE_LOOKUPS_PER_LOOP; while (num--) { dictEntry *de; long long ttl; if ((de = dictGetRandomKey(db->expires)) == NULL) break; ttl = dictGetSignedIntegerVal(de)-now; if (activeExpireCycleTryExpire(db,de,now)) expired++; if (ttl < 0) ttl = 0; ttl_sum += ttl; ttl_samples++; } /* Update the average TTL stats for this database. */ if (ttl_samples) { long long avg_ttl = ttl_sum/ttl_samples; if (db->avg_ttl == 0) db->avg_ttl = avg_ttl; /* Smooth the value averaging with the previous one. */ db->avg_ttl = (db->avg_ttl+avg_ttl)/2; } /* We can't block forever here even if there are many keys to * expire. So after a given amount of milliseconds return to the * caller waiting for the other active expire cycle. */ iteration++; if ((iteration & 0xf) == 0 && /* check once every 16 iterations. */ (ustime()-start) > timelimit) { timelimit_exit = 1; } if (timelimit_exit) return; /* We don't repeat the cycle if there are less than 25% of keys * found expired in the current DB. */ } while (expired > ACTIVE_EXPIRE_CYCLE_LOOKUPS_PER_LOOP/4); } } void updateLRUClock(void) { server.lruclock = (server.unixtime/REDIS_LRU_CLOCK_RESOLUTION) & REDIS_LRU_CLOCK_MAX; } /* Add a sample to the operations per second array of samples. */ void trackOperationsPerSecond(void) { long long t = mstime() - server.ops_sec_last_sample_time; long long ops = server.stat_numcommands - server.ops_sec_last_sample_ops; long long ops_sec; ops_sec = t > 0 ? (ops*1000/t) : 0; server.ops_sec_samples[server.ops_sec_idx] = ops_sec; server.ops_sec_idx = (server.ops_sec_idx+1) % REDIS_OPS_SEC_SAMPLES; server.ops_sec_last_sample_time = mstime(); server.ops_sec_last_sample_ops = server.stat_numcommands; } /* Return the mean of all the samples. */ long long getOperationsPerSecond(void) { int j; long long sum = 0; for (j = 0; j < REDIS_OPS_SEC_SAMPLES; j++) sum += server.ops_sec_samples[j]; return sum / REDIS_OPS_SEC_SAMPLES; } /* Check for timeouts. Returns non-zero if the client was terminated */ int clientsCronHandleTimeout(redisClient *c) { time_t now = server.unixtime; if (server.maxidletime && !(c->flags & REDIS_SLAVE) && /* no timeout for slaves */ !(c->flags & REDIS_MASTER) && /* no timeout for masters */ !(c->flags & REDIS_BLOCKED) && /* no timeout for BLPOP */ dictSize(c->pubsub_channels) == 0 && /* no timeout for pubsub */ listLength(c->pubsub_patterns) == 0 && (now - c->lastinteraction > server.maxidletime)) { redisLog(REDIS_VERBOSE,"Closing idle client"); freeClient(c); return 1; } else if (c->flags & REDIS_BLOCKED) { if (c->bpop.timeout != 0 && c->bpop.timeout < now) { addReply(c,shared.nullmultibulk); unblockClientWaitingData(c); } } return 0; } /* The client query buffer is an sds.c string that can end with a lot of * free space not used, this function reclaims space if needed. * * The function always returns 0 as it never terminates the client. */ int clientsCronResizeQueryBuffer(redisClient *c) { size_t querybuf_size = sdsAllocSize(c->querybuf); time_t idletime = server.unixtime - c->lastinteraction; /* There are two conditions to resize the query buffer: * 1) Query buffer is > BIG_ARG and too big for latest peak. * 2) Client is inactive and the buffer is bigger than 1k. */ if (((querybuf_size > REDIS_MBULK_BIG_ARG) && (querybuf_size/(c->querybuf_peak+1)) > 2) || (querybuf_size > 1024 && idletime > 2)) { /* Only resize the query buffer if it is actually wasting space. */ if (sdsavail(c->querybuf) > 1024) { c->querybuf = sdsRemoveFreeSpace(c->querybuf); } } /* Reset the peak again to capture the peak memory usage in the next * cycle. */ c->querybuf_peak = 0; return 0; } void clientsCron(void) { /* Make sure to process at least 1/(server.hz*10) of clients per call. * Since this function is called server.hz times per second we are sure that * in the worst case we process all the clients in 10 seconds. * In normal conditions (a reasonable number of clients) we process * all the clients in a shorter time. */ int numclients = listLength(server.clients); int iterations = numclients/(server.hz*10); if (iterations < 50) iterations = (numclients < 50) ? numclients : 50; while(listLength(server.clients) && iterations--) { redisClient *c; listNode *head; /* Rotate the list, take the current head, process. * This way if the client must be removed from the list it's the * first element and we don't incur into O(N) computation. */ listRotate(server.clients); head = listFirst(server.clients); c = listNodeValue(head); /* The following functions do different service checks on the client. * The protocol is that they return non-zero if the client was * terminated. */ if (clientsCronHandleTimeout(c)) continue; if (clientsCronResizeQueryBuffer(c)) continue; } } /* This function handles 'background' operations we are required to do * incrementally in Redis databases, such as active key expiring, resizing, * rehashing. */ void databasesCron(void) { /* Expire keys by random sampling. Not required for slaves * as master will synthesize DELs for us. */ if (server.active_expire_enabled && server.masterhost == NULL) activeExpireCycle(ACTIVE_EXPIRE_CYCLE_SLOW); /* Perform hash tables rehashing if needed, but only if there are no * other processes saving the DB on disk. Otherwise rehashing is bad * as will cause a lot of copy-on-write of memory pages. */ if (server.rdb_child_pid == -1 && server.aof_child_pid == -1) { /* We use global counters so if we stop the computation at a given * DB we'll be able to start from the successive in the next * cron loop iteration. */ static unsigned int resize_db = 0; static unsigned int rehash_db = 0; unsigned int dbs_per_call = REDIS_DBCRON_DBS_PER_CALL; unsigned int j; /* Don't test more DBs than we have. */ if (dbs_per_call > server.dbnum) dbs_per_call = server.dbnum; /* Resize */ for (j = 0; j < dbs_per_call; j++) { tryResizeHashTables(resize_db % server.dbnum); resize_db++; } /* Rehash */ if (server.activerehashing) { for (j = 0; j < dbs_per_call; j++) { int work_done = incrementallyRehash(rehash_db % server.dbnum); rehash_db++; if (work_done) { /* If the function did some work, stop here, we'll do * more at the next cron loop. */ break; } } } } } /* This is our timer interrupt, called server.hz times per second. * Here is where we do a number of things that need to be done asynchronously. * For instance: * * - Active expired keys collection (it is also performed in a lazy way on * lookup). * - Software watchdog. * - Update some statistic. * - Incremental rehashing of the DBs hash tables. * - Triggering BGSAVE / AOF rewrite, and handling of terminated children. * - Clients timeout of different kinds. * - Replication reconnection. * - Many more... * * Everything directly called here will be called server.hz times per second, * so in order to throttle execution of things we want to do less frequently * a macro is used: run_with_period(milliseconds) { .... } */ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) { int j; REDIS_NOTUSED(eventLoop); REDIS_NOTUSED(id); REDIS_NOTUSED(clientData); /* Software watchdog: deliver the SIGALRM that will reach the signal * handler if we don't return here fast enough. */ if (server.watchdog_period) watchdogScheduleSignal(server.watchdog_period); /* We take a cached value of the unix time in the global state because * with virtual memory and aging there is to store the current time * in objects at every object access, and accuracy is not needed. * To access a global var is faster than calling time(NULL) */ server.unixtime = time(NULL); server.mstime = mstime(); run_with_period(100) trackOperationsPerSecond(); /* We have just 22 bits per object for LRU information. * So we use an (eventually wrapping) LRU clock with 10 seconds resolution. * 2^22 bits with 10 seconds resolution is more or less 1.5 years. * * Note that even if this will wrap after 1.5 years it's not a problem, * everything will still work but just some object will appear younger * to Redis. But for this to happen a given object should never be touched * for 1.5 years. * * Note that you can change the resolution altering the * REDIS_LRU_CLOCK_RESOLUTION define. */ updateLRUClock(); /* Record the max memory used since the server was started. */ if (zmalloc_used_memory() > server.stat_peak_memory) server.stat_peak_memory = zmalloc_used_memory(); /* We received a SIGTERM, shutting down here in a safe way, as it is * not ok doing so inside the signal handler. */ if (server.shutdown_asap) { if (prepareForShutdown(0) == REDIS_OK) exit(0); redisLog(REDIS_WARNING,"SIGTERM received but errors trying to shut down the server, check the logs for more information"); server.shutdown_asap = 0; } /* Show some info about non-empty databases */ run_with_period(5000) { for (j = 0; j < server.dbnum; j++) { long long size, used, vkeys; size = dictSlots(server.db[j].dict); used = dictSize(server.db[j].dict); vkeys = dictSize(server.db[j].expires); if (used || vkeys) { redisLog(REDIS_VERBOSE,"DB %d: %lld keys (%lld volatile) in %lld slots HT.",j,used,vkeys,size); /* dictPrintStats(server.dict); */ } } } /* Show information about connected clients */ if (!server.sentinel_mode) { run_with_period(5000) { redisLog(REDIS_VERBOSE, "%d clients connected (%d slaves), %zu bytes in use", listLength(server.clients)-listLength(server.slaves), listLength(server.slaves), zmalloc_used_memory()); } } /* We need to do a few operations on clients asynchronously. */ clientsCron(); /* Handle background operations on Redis databases. */ databasesCron(); /* Start a scheduled AOF rewrite if this was requested by the user while * a BGSAVE was in progress. */ if (server.rdb_child_pid == -1 && server.aof_child_pid == -1 && server.aof_rewrite_scheduled) { rewriteAppendOnlyFileBackground(); } /* Check if a background saving or AOF rewrite in progress terminated. */ if (server.rdb_child_pid != -1 || server.aof_child_pid != -1) { int statloc; pid_t pid; if ((pid = wait3(&statloc,WNOHANG,NULL)) != 0) { int exitcode = WEXITSTATUS(statloc); int bysignal = 0; if (WIFSIGNALED(statloc)) bysignal = WTERMSIG(statloc); if (pid == server.rdb_child_pid) { backgroundSaveDoneHandler(exitcode,bysignal); } else if (pid == server.aof_child_pid) { backgroundRewriteDoneHandler(exitcode,bysignal); } else { redisLog(REDIS_WARNING, "Warning, detected child with unmatched pid: %ld", (long)pid); } updateDictResizePolicy(); } } else { /* If there is not a background saving/rewrite in progress check if * we have to save/rewrite now */ for (j = 0; j < server.saveparamslen; j++) { struct saveparam *sp = server.saveparams+j; /* Save if we reached the given amount of changes, * the given amount of seconds, and if the latest bgsave was * successful or if, in case of an error, at least * REDIS_BGSAVE_RETRY_DELAY seconds already elapsed. */ if (server.dirty >= sp->changes && server.unixtime-server.lastsave > sp->seconds && (server.unixtime-server.lastbgsave_try > REDIS_BGSAVE_RETRY_DELAY || server.lastbgsave_status == REDIS_OK)) { redisLog(REDIS_NOTICE,"%d changes in %d seconds. Saving...", sp->changes, sp->seconds); rdbSaveBackground(server.rdb_filename); break; } } /* Trigger an AOF rewrite if needed */ if (server.rdb_child_pid == -1 && server.aof_child_pid == -1 && server.aof_rewrite_perc && server.aof_current_size > server.aof_rewrite_min_size) { long long base = server.aof_rewrite_base_size ? server.aof_rewrite_base_size : 1; long long growth = (server.aof_current_size*100/base) - 100; if (growth >= server.aof_rewrite_perc) { redisLog(REDIS_NOTICE,"Starting automatic rewriting of AOF on %lld%% growth",growth); rewriteAppendOnlyFileBackground(); } } } /* If we postponed an AOF buffer flush, let's try to do it every time the * cron function is called. */ if (server.aof_flush_postponed_start) flushAppendOnlyFile(0); /* Close clients that need to be closed asynchronous */ freeClientsInAsyncFreeQueue(); /* Replication cron function -- used to reconnect to master and * to detect transfer failures. */ run_with_period(1000) replicationCron(); /* Run the sentinel timer if we are in sentinel mode. */ run_with_period(100) { if (server.sentinel_mode) sentinelTimer(); } server.cronloops++; return 1000/server.hz; } /* This function gets called every time Redis is entering the * main loop of the event driven library, that is, before to sleep * for ready file descriptors. */ void beforeSleep(struct aeEventLoop *eventLoop) { REDIS_NOTUSED(eventLoop); listNode *ln; redisClient *c; /* Run a fast expire cycle. */ activeExpireCycle(ACTIVE_EXPIRE_CYCLE_FAST); /* Try to process pending commands for clients that were just unblocked. */ while (listLength(server.unblocked_clients)) { ln = listFirst(server.unblocked_clients); redisAssert(ln != NULL); c = ln->value; listDelNode(server.unblocked_clients,ln); c->flags &= ~REDIS_UNBLOCKED; /* Process remaining data in the input buffer. */ if (c->querybuf && sdslen(c->querybuf) > 0) { server.current_client = c; processInputBuffer(c); server.current_client = NULL; } } /* Write the AOF buffer on disk */ flushAppendOnlyFile(0); } /* =========================== Server initialization ======================== */ void createSharedObjects(void) { int j; shared.crlf = createObject(REDIS_STRING,sdsnew("\r\n")); shared.ok = createObject(REDIS_STRING,sdsnew("+OK\r\n")); shared.err = createObject(REDIS_STRING,sdsnew("-ERR\r\n")); shared.emptybulk = createObject(REDIS_STRING,sdsnew("$0\r\n\r\n")); shared.czero = createObject(REDIS_STRING,sdsnew(":0\r\n")); shared.cone = createObject(REDIS_STRING,sdsnew(":1\r\n")); shared.cnegone = createObject(REDIS_STRING,sdsnew(":-1\r\n")); shared.nullbulk = createObject(REDIS_STRING,sdsnew("$-1\r\n")); shared.nullmultibulk = createObject(REDIS_STRING,sdsnew("*-1\r\n")); shared.emptymultibulk = createObject(REDIS_STRING,sdsnew("*0\r\n")); shared.pong = createObject(REDIS_STRING,sdsnew("+PONG\r\n")); shared.queued = createObject(REDIS_STRING,sdsnew("+QUEUED\r\n")); shared.wrongtypeerr = createObject(REDIS_STRING,sdsnew( "-ERR Operation against a key holding the wrong kind of value\r\n")); shared.nokeyerr = createObject(REDIS_STRING,sdsnew( "-ERR no such key\r\n")); shared.syntaxerr = createObject(REDIS_STRING,sdsnew( "-ERR syntax error\r\n")); shared.sameobjecterr = createObject(REDIS_STRING,sdsnew( "-ERR source and destination objects are the same\r\n")); shared.outofrangeerr = createObject(REDIS_STRING,sdsnew( "-ERR index out of range\r\n")); shared.noscripterr = createObject(REDIS_STRING,sdsnew( "-NOSCRIPT No matching script. Please use EVAL.\r\n")); shared.loadingerr = createObject(REDIS_STRING,sdsnew( "-LOADING Redis is loading the dataset in memory\r\n")); shared.slowscripterr = createObject(REDIS_STRING,sdsnew( "-BUSY Redis is busy running a script. You can only call SCRIPT KILL or SHUTDOWN NOSAVE.\r\n")); shared.masterdownerr = createObject(REDIS_STRING,sdsnew( "-MASTERDOWN Link with MASTER is down and slave-serve-stale-data is set to 'no'.\r\n")); shared.bgsaveerr = createObject(REDIS_STRING,sdsnew( "-MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. Commands that may modify the data set are disabled. Please check Redis logs for details about the error.\r\n")); shared.roslaveerr = createObject(REDIS_STRING,sdsnew( "-READONLY You can't write against a read only slave.\r\n")); shared.oomerr = createObject(REDIS_STRING,sdsnew( "-OOM command not allowed when used memory > 'maxmemory'.\r\n")); shared.execaborterr = createObject(REDIS_STRING,sdsnew( "-EXECABORT Transaction discarded because of previous errors.\r\n")); shared.space = createObject(REDIS_STRING,sdsnew(" ")); shared.colon = createObject(REDIS_STRING,sdsnew(":")); shared.plus = createObject(REDIS_STRING,sdsnew("+")); for (j = 0; j < REDIS_SHARED_SELECT_CMDS; j++) { shared.select[j] = createObject(REDIS_STRING, sdscatprintf(sdsempty(),"select %d\r\n", j)); } shared.messagebulk = createStringObject("$7\r\nmessage\r\n",13); shared.pmessagebulk = createStringObject("$8\r\npmessage\r\n",14); shared.subscribebulk = createStringObject("$9\r\nsubscribe\r\n",15); shared.unsubscribebulk = createStringObject("$11\r\nunsubscribe\r\n",18); shared.psubscribebulk = createStringObject("$10\r\npsubscribe\r\n",17); shared.punsubscribebulk = createStringObject("$12\r\npunsubscribe\r\n",19); shared.del = createStringObject("DEL",3); shared.rpop = createStringObject("RPOP",4); shared.lpop = createStringObject("LPOP",4); shared.lpush = createStringObject("LPUSH",5); for (j = 0; j < REDIS_SHARED_INTEGERS; j++) { shared.integers[j] = createObject(REDIS_STRING,(void*)(long)j); shared.integers[j]->encoding = REDIS_ENCODING_INT; } for (j = 0; j < REDIS_SHARED_BULKHDR_LEN; j++) { shared.mbulkhdr[j] = createObject(REDIS_STRING, sdscatprintf(sdsempty(),"*%d\r\n",j)); shared.bulkhdr[j] = createObject(REDIS_STRING, sdscatprintf(sdsempty(),"$%d\r\n",j)); } } void initServerConfig() { getRandomHexChars(server.runid,REDIS_RUN_ID_SIZE); server.hz = REDIS_DEFAULT_HZ; server.runid[REDIS_RUN_ID_SIZE] = '\0'; server.arch_bits = (sizeof(long) == 8) ? 64 : 32; server.port = REDIS_SERVERPORT; server.bindaddr = NULL; server.unixsocket = NULL; server.unixsocketperm = 0; server.ipfd = -1; server.sofd = -1; server.dbnum = REDIS_DEFAULT_DBNUM; server.verbosity = REDIS_NOTICE; server.maxidletime = REDIS_MAXIDLETIME; server.tcpkeepalive = 0; server.active_expire_enabled = 1; server.client_max_querybuf_len = REDIS_MAX_QUERYBUF_LEN; server.saveparams = NULL; server.loading = 0; server.logfile = NULL; /* NULL = log on standard output */ server.syslog_enabled = 0; server.syslog_ident = zstrdup("redis"); server.syslog_facility = LOG_LOCAL0; server.daemonize = 0; server.aof_state = REDIS_AOF_OFF; server.aof_fsync = AOF_FSYNC_EVERYSEC; server.aof_no_fsync_on_rewrite = 0; server.aof_rewrite_perc = REDIS_AOF_REWRITE_PERC; server.aof_rewrite_min_size = REDIS_AOF_REWRITE_MIN_SIZE; server.aof_rewrite_base_size = 0; server.aof_rewrite_scheduled = 0; server.aof_last_fsync = time(NULL); server.aof_rewrite_time_last = -1; server.aof_rewrite_time_start = -1; server.aof_lastbgrewrite_status = REDIS_OK; server.aof_delayed_fsync = 0; server.aof_fd = -1; server.aof_selected_db = -1; /* Make sure the first time will not match */ server.aof_flush_postponed_start = 0; server.aof_rewrite_incremental_fsync = 1; server.pidfile = zstrdup("/var/run/redis.pid"); server.rdb_filename = zstrdup("dump.rdb"); server.aof_filename = zstrdup("appendonly.aof"); server.requirepass = NULL; server.rdb_compression = 1; server.rdb_checksum = 1; server.stop_writes_on_bgsave_err = 1; server.activerehashing = 1; server.maxclients = REDIS_MAX_CLIENTS; server.bpop_blocked_clients = 0; server.maxmemory = 0; server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_LRU; server.maxmemory_samples = 3; server.hash_max_ziplist_entries = REDIS_HASH_MAX_ZIPLIST_ENTRIES; server.hash_max_ziplist_value = REDIS_HASH_MAX_ZIPLIST_VALUE; server.list_max_ziplist_entries = REDIS_LIST_MAX_ZIPLIST_ENTRIES; server.list_max_ziplist_value = REDIS_LIST_MAX_ZIPLIST_VALUE; server.set_max_intset_entries = REDIS_SET_MAX_INTSET_ENTRIES; server.zset_max_ziplist_entries = REDIS_ZSET_MAX_ZIPLIST_ENTRIES; server.zset_max_ziplist_value = REDIS_ZSET_MAX_ZIPLIST_VALUE; server.shutdown_asap = 0; server.repl_ping_slave_period = REDIS_REPL_PING_SLAVE_PERIOD; server.repl_timeout = REDIS_REPL_TIMEOUT; server.lua_caller = NULL; server.lua_time_limit = REDIS_LUA_TIME_LIMIT; server.lua_client = NULL; server.lua_timedout = 0; updateLRUClock(); resetServerSaveParams(); appendServerSaveParams(60*60,1); /* save after 1 hour and 1 change */ appendServerSaveParams(300,100); /* save after 5 minutes and 100 changes */ appendServerSaveParams(60,10000); /* save after 1 minute and 10000 changes */ /* Replication related */ server.masterauth = NULL; server.masterhost = NULL; server.masterport = 6379; server.master = NULL; server.repl_state = REDIS_REPL_NONE; server.repl_syncio_timeout = REDIS_REPL_SYNCIO_TIMEOUT; server.repl_serve_stale_data = 1; server.repl_slave_ro = 1; server.repl_down_since = 0; /* Never connected, repl is down since EVER. */ server.repl_disable_tcp_nodelay = 0; server.slave_priority = REDIS_DEFAULT_SLAVE_PRIORITY; /* Client output buffer limits */ server.client_obuf_limits[REDIS_CLIENT_LIMIT_CLASS_NORMAL].hard_limit_bytes = 0; server.client_obuf_limits[REDIS_CLIENT_LIMIT_CLASS_NORMAL].soft_limit_bytes = 0; server.client_obuf_limits[REDIS_CLIENT_LIMIT_CLASS_NORMAL].soft_limit_seconds = 0; server.client_obuf_limits[REDIS_CLIENT_LIMIT_CLASS_SLAVE].hard_limit_bytes = 1024*1024*256; server.client_obuf_limits[REDIS_CLIENT_LIMIT_CLASS_SLAVE].soft_limit_bytes = 1024*1024*64; server.client_obuf_limits[REDIS_CLIENT_LIMIT_CLASS_SLAVE].soft_limit_seconds = 60; server.client_obuf_limits[REDIS_CLIENT_LIMIT_CLASS_PUBSUB].hard_limit_bytes = 1024*1024*32; server.client_obuf_limits[REDIS_CLIENT_LIMIT_CLASS_PUBSUB].soft_limit_bytes = 1024*1024*8; server.client_obuf_limits[REDIS_CLIENT_LIMIT_CLASS_PUBSUB].soft_limit_seconds = 60; /* Double constants initialization */ R_Zero = 0.0; R_PosInf = 1.0/R_Zero; R_NegInf = -1.0/R_Zero; R_Nan = R_Zero/R_Zero; /* Command table -- we initiialize it here as it is part of the * initial configuration, since command names may be changed via * redis.conf using the rename-command directive. */ server.commands = dictCreate(&commandTableDictType,NULL); server.orig_commands = dictCreate(&commandTableDictType,NULL); populateCommandTable(); server.delCommand = lookupCommandByCString("del"); server.multiCommand = lookupCommandByCString("multi"); server.lpushCommand = lookupCommandByCString("lpush"); server.lpopCommand = lookupCommandByCString("lpop"); server.rpopCommand = lookupCommandByCString("rpop"); /* Slow log */ server.slowlog_log_slower_than = REDIS_SLOWLOG_LOG_SLOWER_THAN; server.slowlog_max_len = REDIS_SLOWLOG_MAX_LEN; /* Debugging */ server.assert_failed = ""; server.assert_file = ""; server.assert_line = 0; server.bug_report_start = 0; server.watchdog_period = 0; } /* This function will try to raise the max number of open files accordingly to * the configured max number of clients. It will also account for 32 additional * file descriptors as we need a few more for persistence, listening * sockets, log files and so forth. * * If it will not be possible to set the limit accordingly to the configured * max number of clients, the function will do the reverse setting * server.maxclients to the value that we can actually handle. */ void adjustOpenFilesLimit(void) { rlim_t maxfiles = server.maxclients+32; struct rlimit limit; if (getrlimit(RLIMIT_NOFILE,&limit) == -1) { redisLog(REDIS_WARNING,"Unable to obtain the current NOFILE limit (%s), assuming 1024 and setting the max clients configuration accordingly.", strerror(errno)); server.maxclients = 1024-32; } else { rlim_t oldlimit = limit.rlim_cur; /* Set the max number of files if the current limit is not enough * for our needs. */ if (oldlimit < maxfiles) { rlim_t f; f = maxfiles; while(f > oldlimit) { limit.rlim_cur = f; limit.rlim_max = f; if (setrlimit(RLIMIT_NOFILE,&limit) != -1) break; f -= 128; } if (f < oldlimit) f = oldlimit; if (f != maxfiles) { server.maxclients = f-32; redisLog(REDIS_WARNING,"Unable to set the max number of files limit to %d (%s), setting the max clients configuration to %d.", (int) maxfiles, strerror(errno), (int) server.maxclients); } else { redisLog(REDIS_NOTICE,"Max number of open files set to %d", (int) maxfiles); } } } } void initServer() { int j; signal(SIGHUP, SIG_IGN); signal(SIGPIPE, SIG_IGN); setupSignalHandlers(); if (server.syslog_enabled) { openlog(server.syslog_ident, LOG_PID | LOG_NDELAY | LOG_NOWAIT, server.syslog_facility); } server.current_client = NULL; server.clients = listCreate(); server.clients_to_close = listCreate(); server.slaves = listCreate(); server.monitors = listCreate(); server.unblocked_clients = listCreate(); server.ready_keys = listCreate(); createSharedObjects(); adjustOpenFilesLimit(); server.el = aeCreateEventLoop(server.maxclients+1024); server.db = zmalloc(sizeof(redisDb)*server.dbnum); if (server.port != 0) { server.ipfd = anetTcpServer(server.neterr,server.port,server.bindaddr); if (server.ipfd == ANET_ERR) { redisLog(REDIS_WARNING, "Opening port %d: %s", server.port, server.neterr); exit(1); } } if (server.unixsocket != NULL) { unlink(server.unixsocket); /* don't care if this fails */ server.sofd = anetUnixServer(server.neterr,server.unixsocket,server.unixsocketperm); if (server.sofd == ANET_ERR) { redisLog(REDIS_WARNING, "Opening socket: %s", server.neterr); exit(1); } } if (server.ipfd < 0 && server.sofd < 0) { redisLog(REDIS_WARNING, "Configured to not listen anywhere, exiting."); exit(1); } for (j = 0; j < server.dbnum; j++) { server.db[j].dict = dictCreate(&dbDictType,NULL); server.db[j].expires = dictCreate(&keyptrDictType,NULL); server.db[j].blocking_keys = dictCreate(&keylistDictType,NULL); server.db[j].ready_keys = dictCreate(&setDictType,NULL); server.db[j].watched_keys = dictCreate(&keylistDictType,NULL); server.db[j].id = j; server.db[j].avg_ttl = 0; } server.pubsub_channels = dictCreate(&keylistDictType,NULL); server.pubsub_patterns = listCreate(); listSetFreeMethod(server.pubsub_patterns,freePubsubPattern); listSetMatchMethod(server.pubsub_patterns,listMatchPubsubPattern); server.cronloops = 0; server.rdb_child_pid = -1; server.aof_child_pid = -1; aofRewriteBufferReset(); server.aof_buf = sdsempty(); server.lastsave = time(NULL); /* At startup we consider the DB saved. */ server.lastbgsave_try = 0; /* At startup we never tried to BGSAVE. */ server.rdb_save_time_last = -1; server.rdb_save_time_start = -1; server.dirty = 0; server.stat_numcommands = 0; server.stat_numconnections = 0; server.stat_expiredkeys = 0; server.stat_evictedkeys = 0; server.stat_starttime = time(NULL); server.stat_keyspace_misses = 0; server.stat_keyspace_hits = 0; server.stat_peak_memory = 0; server.stat_fork_time = 0; server.stat_rejected_conn = 0; memset(server.ops_sec_samples,0,sizeof(server.ops_sec_samples)); server.ops_sec_idx = 0; server.ops_sec_last_sample_time = mstime(); server.ops_sec_last_sample_ops = 0; server.unixtime = time(NULL); server.mstime = mstime(); server.lastbgsave_status = REDIS_OK; if(aeCreateTimeEvent(server.el, 1, serverCron, NULL, NULL) == AE_ERR) { redisPanic("create time event failed"); exit(1); } if (server.ipfd > 0 && aeCreateFileEvent(server.el,server.ipfd,AE_READABLE, acceptTcpHandler,NULL) == AE_ERR) redisPanic("Unrecoverable error creating server.ipfd file event."); if (server.sofd > 0 && aeCreateFileEvent(server.el,server.sofd,AE_READABLE, acceptUnixHandler,NULL) == AE_ERR) redisPanic("Unrecoverable error creating server.sofd file event."); if (server.aof_state == REDIS_AOF_ON) { server.aof_fd = open(server.aof_filename, O_WRONLY|O_APPEND|O_CREAT,0644); if (server.aof_fd == -1) { redisLog(REDIS_WARNING, "Can't open the append-only file: %s", strerror(errno)); exit(1); } } /* 32 bit instances are limited to 4GB of address space, so if there is * no explicit limit in the user provided configuration we set a limit * at 3 GB using maxmemory with 'noeviction' policy'. This avoids * useless crashes of the Redis instance for out of memory. */ if (server.arch_bits == 32 && server.maxmemory == 0) { redisLog(REDIS_WARNING,"Warning: 32 bit instance detected but no memory limit set. Setting 3 GB maxmemory limit with 'noeviction' policy now."); server.maxmemory = 3072LL*(1024*1024); /* 3 GB */ server.maxmemory_policy = REDIS_MAXMEMORY_NO_EVICTION; } scriptingInit(); slowlogInit(); bioInit(); } /* Populates the Redis Command Table starting from the hard coded list * we have on top of redis.c file. */ void populateCommandTable(void) { int j; int numcommands = sizeof(redisCommandTable)/sizeof(struct redisCommand); for (j = 0; j < numcommands; j++) { struct redisCommand *c = redisCommandTable+j; char *f = c->sflags; int retval1, retval2; while(*f != '\0') { switch(*f) { case 'w': c->flags |= REDIS_CMD_WRITE; break; case 'r': c->flags |= REDIS_CMD_READONLY; break; case 'm': c->flags |= REDIS_CMD_DENYOOM; break; case 'a': c->flags |= REDIS_CMD_ADMIN; break; case 'p': c->flags |= REDIS_CMD_PUBSUB; break; case 'f': c->flags |= REDIS_CMD_FORCE_REPLICATION; break; case 's': c->flags |= REDIS_CMD_NOSCRIPT; break; case 'R': c->flags |= REDIS_CMD_RANDOM; break; case 'S': c->flags |= REDIS_CMD_SORT_FOR_SCRIPT; break; case 'l': c->flags |= REDIS_CMD_LOADING; break; case 't': c->flags |= REDIS_CMD_STALE; break; case 'M': c->flags |= REDIS_CMD_SKIP_MONITOR; break; default: redisPanic("Unsupported command flag"); break; } f++; } retval1 = dictAdd(server.commands, sdsnew(c->name), c); /* Populate an additional dictionary that will be unaffected * by rename-command statements in redis.conf. */ retval2 = dictAdd(server.orig_commands, sdsnew(c->name), c); redisAssert(retval1 == DICT_OK && retval2 == DICT_OK); } } void resetCommandTableStats(void) { int numcommands = sizeof(redisCommandTable)/sizeof(struct redisCommand); int j; for (j = 0; j < numcommands; j++) { struct redisCommand *c = redisCommandTable+j; c->microseconds = 0; c->calls = 0; } } /* ========================== Redis OP Array API ============================ */ void redisOpArrayInit(redisOpArray *oa) { oa->ops = NULL; oa->numops = 0; } int redisOpArrayAppend(redisOpArray *oa, struct redisCommand *cmd, int dbid, robj **argv, int argc, int target) { redisOp *op; oa->ops = zrealloc(oa->ops,sizeof(redisOp)*(oa->numops+1)); op = oa->ops+oa->numops; op->cmd = cmd; op->dbid = dbid; op->argv = argv; op->argc = argc; op->target = target; oa->numops++; return oa->numops; } void redisOpArrayFree(redisOpArray *oa) { while(oa->numops) { int j; redisOp *op; oa->numops--; op = oa->ops+oa->numops; for (j = 0; j < op->argc; j++) decrRefCount(op->argv[j]); zfree(op->argv); } zfree(oa->ops); } /* ====================== Commands lookup and execution ===================== */ struct redisCommand *lookupCommand(sds name) { return dictFetchValue(server.commands, name); } struct redisCommand *lookupCommandByCString(char *s) { struct redisCommand *cmd; sds name = sdsnew(s); cmd = dictFetchValue(server.commands, name); sdsfree(name); return cmd; } /* Lookup the command in the current table, if not found also check in * the original table containing the original command names unaffected by * redis.conf rename-command statement. * * This is used by functions rewriting the argument vector such as * rewriteClientCommandVector() in order to set client->cmd pointer * correctly even if the command was renamed. */ struct redisCommand *lookupCommandOrOriginal(sds name) { struct redisCommand *cmd = dictFetchValue(server.commands, name); if (!cmd) cmd = dictFetchValue(server.orig_commands,name); return cmd; } /* Propagate the specified command (in the context of the specified database id) * to AOF and Slaves. * * flags are an xor between: * + REDIS_PROPAGATE_NONE (no propagation of command at all) * + REDIS_PROPAGATE_AOF (propagate into the AOF file if is enabled) * + REDIS_PROPAGATE_REPL (propagate into the replication link) */ void propagate(struct redisCommand *cmd, int dbid, robj **argv, int argc, int flags) { if (server.aof_state != REDIS_AOF_OFF && flags & REDIS_PROPAGATE_AOF) feedAppendOnlyFile(cmd,dbid,argv,argc); if (flags & REDIS_PROPAGATE_REPL && listLength(server.slaves)) replicationFeedSlaves(server.slaves,dbid,argv,argc); } /* Used inside commands to schedule the propagation of additional commands * after the current command is propagated to AOF / Replication. */ void alsoPropagate(struct redisCommand *cmd, int dbid, robj **argv, int argc, int target) { redisOpArrayAppend(&server.also_propagate,cmd,dbid,argv,argc,target); } /* Call() is the core of Redis execution of a command */ void call(redisClient *c, int flags) { long long dirty, start = ustime(), duration; /* Sent the command to clients in MONITOR mode, only if the commands are * not generated from reading an AOF. */ if (listLength(server.monitors) && !server.loading && !(c->cmd->flags & REDIS_CMD_SKIP_MONITOR)) { replicationFeedMonitors(c,server.monitors,c->db->id,c->argv,c->argc); } /* Call the command. */ redisOpArrayInit(&server.also_propagate); dirty = server.dirty; c->cmd->proc(c); dirty = server.dirty-dirty; duration = ustime()-start; /* When EVAL is called loading the AOF we don't want commands called * from Lua to go into the slowlog or to populate statistics. */ if (server.loading && c->flags & REDIS_LUA_CLIENT) flags &= ~(REDIS_CALL_SLOWLOG | REDIS_CALL_STATS); /* Log the command into the Slow log if needed, and populate the * per-command statistics that we show in INFO commandstats. */ if (flags & REDIS_CALL_SLOWLOG && c->cmd->proc != execCommand) slowlogPushEntryIfNeeded(c->argv,c->argc,duration); if (flags & REDIS_CALL_STATS) { c->cmd->microseconds += duration; c->cmd->calls++; } /* Propagate the command into the AOF and replication link */ if (flags & REDIS_CALL_PROPAGATE) { int flags = REDIS_PROPAGATE_NONE; if (c->cmd->flags & REDIS_CMD_FORCE_REPLICATION) flags |= REDIS_PROPAGATE_REPL; if (dirty) flags |= (REDIS_PROPAGATE_REPL | REDIS_PROPAGATE_AOF); if (flags != REDIS_PROPAGATE_NONE) propagate(c->cmd,c->db->id,c->argv,c->argc,flags); } /* Handle the alsoPropagate() API to handle commands that want to propagate * multiple separated commands. */ if (server.also_propagate.numops) { int j; redisOp *rop; for (j = 0; j < server.also_propagate.numops; j++) { rop = &server.also_propagate.ops[j]; propagate(rop->cmd, rop->dbid, rop->argv, rop->argc, rop->target); } redisOpArrayFree(&server.also_propagate); } server.stat_numcommands++; } /* If this function gets called we already read a whole * command, arguments are in the client argv/argc fields. * processCommand() execute the command or prepare the * server for a bulk read from the client. * * If 1 is returned the client is still alive and valid and * other operations can be performed by the caller. Otherwise * if 0 is returned the client was destroyed (i.e. after QUIT). */ int processCommand(redisClient *c) { /* The QUIT command is handled separately. Normal command procs will * go through checking for replication and QUIT will cause trouble * when FORCE_REPLICATION is enabled and would be implemented in * a regular command proc. */ if (!strcasecmp(c->argv[0]->ptr,"quit")) { addReply(c,shared.ok); c->flags |= REDIS_CLOSE_AFTER_REPLY; return REDIS_ERR; } /* Now lookup the command and check ASAP about trivial error conditions * such as wrong arity, bad command name and so forth. */ c->cmd = c->lastcmd = lookupCommand(c->argv[0]->ptr); if (!c->cmd) { flagTransaction(c); addReplyErrorFormat(c,"unknown command '%s'", (char*)c->argv[0]->ptr); return REDIS_OK; } else if ((c->cmd->arity > 0 && c->cmd->arity != c->argc) || (c->argc < -c->cmd->arity)) { flagTransaction(c); addReplyErrorFormat(c,"wrong number of arguments for '%s' command", c->cmd->name); return REDIS_OK; } /* Check if the user is authenticated */ if (server.requirepass && !c->authenticated && c->cmd->proc != authCommand) { flagTransaction(c); addReplyError(c,"operation not permitted"); return REDIS_OK; } /* Handle the maxmemory directive. * * First we try to free some memory if possible (if there are volatile * keys in the dataset). If there are not the only thing we can do * is returning an error. */ if (server.maxmemory) { int retval = freeMemoryIfNeeded(); if ((c->cmd->flags & REDIS_CMD_DENYOOM) && retval == REDIS_ERR) { flagTransaction(c); addReply(c, shared.oomerr); return REDIS_OK; } } /* Don't accept write commands if there are problems persisting on disk. */ if (server.stop_writes_on_bgsave_err && server.saveparamslen > 0 && server.lastbgsave_status == REDIS_ERR && c->cmd->flags & REDIS_CMD_WRITE) { flagTransaction(c); addReply(c, shared.bgsaveerr); return REDIS_OK; } /* Don't accept write commands if this is a read only slave. But * accept write commands if this is our master. */ if (server.masterhost && server.repl_slave_ro && !(c->flags & REDIS_MASTER) && c->cmd->flags & REDIS_CMD_WRITE) { addReply(c, shared.roslaveerr); return REDIS_OK; } /* Only allow SUBSCRIBE and UNSUBSCRIBE in the context of Pub/Sub */ if ((dictSize(c->pubsub_channels) > 0 || listLength(c->pubsub_patterns) > 0) && c->cmd->proc != subscribeCommand && c->cmd->proc != unsubscribeCommand && c->cmd->proc != psubscribeCommand && c->cmd->proc != punsubscribeCommand) { addReplyError(c,"only (P)SUBSCRIBE / (P)UNSUBSCRIBE / QUIT allowed in this context"); return REDIS_OK; } /* Only allow INFO and SLAVEOF when slave-serve-stale-data is no and * we are a slave with a broken link with master. */ if (server.masterhost && server.repl_state != REDIS_REPL_CONNECTED && server.repl_serve_stale_data == 0 && !(c->cmd->flags & REDIS_CMD_STALE)) { flagTransaction(c); addReply(c, shared.masterdownerr); return REDIS_OK; } /* Loading DB? Return an error if the command has not the * REDIS_CMD_LOADING flag. */ if (server.loading && !(c->cmd->flags & REDIS_CMD_LOADING)) { addReply(c, shared.loadingerr); return REDIS_OK; } /* Lua script too slow? Only allow commands with REDIS_CMD_STALE flag. */ if (server.lua_timedout && c->cmd->proc != authCommand && !(c->cmd->proc == shutdownCommand && c->argc == 2 && tolower(((char*)c->argv[1]->ptr)[0]) == 'n') && !(c->cmd->proc == scriptCommand && c->argc == 2 && tolower(((char*)c->argv[1]->ptr)[0]) == 'k')) { flagTransaction(c); addReply(c, shared.slowscripterr); return REDIS_OK; } /* Exec the command */ if (c->flags & REDIS_MULTI && c->cmd->proc != execCommand && c->cmd->proc != discardCommand && c->cmd->proc != multiCommand && c->cmd->proc != watchCommand) { queueMultiCommand(c); addReply(c,shared.queued); } else { call(c,REDIS_CALL_FULL); if (listLength(server.ready_keys)) handleClientsBlockedOnLists(); } return REDIS_OK; } /*================================== Shutdown =============================== */ int prepareForShutdown(int flags) { int save = flags & REDIS_SHUTDOWN_SAVE; int nosave = flags & REDIS_SHUTDOWN_NOSAVE; redisLog(REDIS_WARNING,"User requested shutdown..."); /* Kill the saving child if there is a background saving in progress. We want to avoid race conditions, for instance our saving child may overwrite the synchronous saving did by SHUTDOWN. */ if (server.rdb_child_pid != -1) { redisLog(REDIS_WARNING,"There is a child saving an .rdb. Killing it!"); kill(server.rdb_child_pid,SIGUSR1); rdbRemoveTempFile(server.rdb_child_pid); } if (server.aof_state != REDIS_AOF_OFF) { /* Kill the AOF saving child as the AOF we already have may be longer * but contains the full dataset anyway. */ if (server.aof_child_pid != -1) { redisLog(REDIS_WARNING, "There is a child rewriting the AOF. Killing it!"); kill(server.aof_child_pid,SIGUSR1); } /* Append only file: fsync() the AOF and exit */ redisLog(REDIS_NOTICE,"Calling fsync() on the AOF file."); aof_fsync(server.aof_fd); } if ((server.saveparamslen > 0 && !nosave) || save) { redisLog(REDIS_NOTICE,"Saving the final RDB snapshot before exiting."); /* Snapshotting. Perform a SYNC SAVE and exit */ if (rdbSave(server.rdb_filename) != REDIS_OK) { /* Ooops.. error saving! The best we can do is to continue * operating. Note that if there was a background saving process, * in the next cron() Redis will be notified that the background * saving aborted, handling special stuff like slaves pending for * synchronization... */ redisLog(REDIS_WARNING,"Error trying to save the DB, can't exit."); return REDIS_ERR; } } if (server.daemonize) { redisLog(REDIS_NOTICE,"Removing the pid file."); unlink(server.pidfile); } /* Close the listening sockets. Apparently this allows faster restarts. */ if (server.ipfd != -1) close(server.ipfd); if (server.sofd != -1) close(server.sofd); if (server.unixsocket) { redisLog(REDIS_NOTICE,"Removing the unix socket file."); unlink(server.unixsocket); /* don't care if this fails */ } redisLog(REDIS_WARNING,"Redis is now ready to exit, bye bye..."); return REDIS_OK; } /*================================== Commands =============================== */ /* Return zero if strings are the same, non-zero if they are not. * The comparison is performed in a way that prevents an attacker to obtain * information about the nature of the strings just monitoring the execution * time of the function. * * Note that limiting the comparison length to strings up to 512 bytes we * can avoid leaking any information about the password length and any * possible branch misprediction related leak. */ int time_independent_strcmp(char *a, char *b) { char bufa[REDIS_AUTHPASS_MAX_LEN], bufb[REDIS_AUTHPASS_MAX_LEN]; /* The above two strlen perform len(a) + len(b) operations where either * a or b are fixed (our password) length, and the difference is only * relative to the length of the user provided string, so no information * leak is possible in the following two lines of code. */ int alen = strlen(a); int blen = strlen(b); int j; int diff = 0; /* We can't compare strings longer than our static buffers. * Note that this will never pass the first test in practical circumstances * so there is no info leak. */ if (alen > sizeof(bufa) || blen > sizeof(bufb)) return 1; memset(bufa,0,sizeof(bufa)); /* Constant time. */ memset(bufb,0,sizeof(bufb)); /* Constant time. */ /* Again the time of the following two copies is proportional to * len(a) + len(b) so no info is leaked. */ memcpy(bufa,a,alen); memcpy(bufb,b,blen); /* Always compare all the chars in the two buffers without * conditional expressions. */ for (j = 0; j < sizeof(bufa); j++) { diff |= (bufa[j] ^ bufb[j]); } /* Length must be equal as well. */ diff |= alen ^ blen; return diff; /* If zero strings are the same. */ } void authCommand(redisClient *c) { if (!server.requirepass) { addReplyError(c,"Client sent AUTH, but no password is set"); } else if (!time_independent_strcmp(c->argv[1]->ptr, server.requirepass)) { c->authenticated = 1; addReply(c,shared.ok); } else { c->authenticated = 0; addReplyError(c,"invalid password"); } } void pingCommand(redisClient *c) { addReply(c,shared.pong); } void echoCommand(redisClient *c) { addReplyBulk(c,c->argv[1]); } void timeCommand(redisClient *c) { struct timeval tv; /* gettimeofday() can only fail if &tv is a bad address so we * don't check for errors. */ gettimeofday(&tv,NULL); addReplyMultiBulkLen(c,2); addReplyBulkLongLong(c,tv.tv_sec); addReplyBulkLongLong(c,tv.tv_usec); } /* Convert an amount of bytes into a human readable string in the form * of 100B, 2G, 100M, 4K, and so forth. */ void bytesToHuman(char *s, unsigned long long n) { double d; if (n < 1024) { /* Bytes */ sprintf(s,"%lluB",n); return; } else if (n < (1024*1024)) { d = (double)n/(1024); sprintf(s,"%.2fK",d); } else if (n < (1024LL*1024*1024)) { d = (double)n/(1024*1024); sprintf(s,"%.2fM",d); } else if (n < (1024LL*1024*1024*1024)) { d = (double)n/(1024LL*1024*1024); sprintf(s,"%.2fG",d); } } /* Create the string returned by the INFO command. This is decoupled * by the INFO command itself as we need to report the same information * on memory corruption problems. */ sds genRedisInfoString(char *section) { sds info = sdsempty(); time_t uptime = server.unixtime-server.stat_starttime; int j, numcommands; struct rusage self_ru, c_ru; unsigned long lol, bib; int allsections = 0, defsections = 0; int sections = 0; if (section) { allsections = strcasecmp(section,"all") == 0; defsections = strcasecmp(section,"default") == 0; } getrusage(RUSAGE_SELF, &self_ru); getrusage(RUSAGE_CHILDREN, &c_ru); getClientsMaxBuffers(&lol,&bib); /* Server */ if (allsections || defsections || !strcasecmp(section,"server")) { struct utsname name; char *mode; if (server.sentinel_mode) mode = "sentinel"; else mode = "standalone"; if (sections++) info = sdscat(info,"\r\n"); uname(&name); info = sdscatprintf(info, "# Server\r\n" "redis_version:%s\r\n" "redis_git_sha1:%s\r\n" "redis_git_dirty:%d\r\n" "redis_mode:%s\r\n" "os:%s %s %s\r\n" "arch_bits:%d\r\n" "multiplexing_api:%s\r\n" "gcc_version:%d.%d.%d\r\n" "process_id:%ld\r\n" "run_id:%s\r\n" "tcp_port:%d\r\n" "uptime_in_seconds:%ld\r\n" "uptime_in_days:%ld\r\n" "hz:%d\r\n" "lru_clock:%ld\r\n", REDIS_VERSION, redisGitSHA1(), strtol(redisGitDirty(),NULL,10) > 0, mode, name.sysname, name.release, name.machine, server.arch_bits, aeGetApiName(), #ifdef __GNUC__ __GNUC__,__GNUC_MINOR__,__GNUC_PATCHLEVEL__, #else 0,0,0, #endif (long) getpid(), server.runid, server.port, uptime, uptime/(3600*24), server.hz, (unsigned long) server.lruclock); } /* Clients */ if (allsections || defsections || !strcasecmp(section,"clients")) { if (sections++) info = sdscat(info,"\r\n"); info = sdscatprintf(info, "# Clients\r\n" "connected_clients:%lu\r\n" "client_longest_output_list:%lu\r\n" "client_biggest_input_buf:%lu\r\n" "blocked_clients:%d\r\n", listLength(server.clients)-listLength(server.slaves), lol, bib, server.bpop_blocked_clients); } /* Memory */ if (allsections || defsections || !strcasecmp(section,"memory")) { char hmem[64]; char peak_hmem[64]; bytesToHuman(hmem,zmalloc_used_memory()); bytesToHuman(peak_hmem,server.stat_peak_memory); if (sections++) info = sdscat(info,"\r\n"); info = sdscatprintf(info, "# Memory\r\n" "used_memory:%zu\r\n" "used_memory_human:%s\r\n" "used_memory_rss:%zu\r\n" "used_memory_peak:%zu\r\n" "used_memory_peak_human:%s\r\n" "used_memory_lua:%lld\r\n" "mem_fragmentation_ratio:%.2f\r\n" "mem_allocator:%s\r\n", zmalloc_used_memory(), hmem, zmalloc_get_rss(), server.stat_peak_memory, peak_hmem, ((long long)lua_gc(server.lua,LUA_GCCOUNT,0))*1024LL, zmalloc_get_fragmentation_ratio(), ZMALLOC_LIB ); } /* Persistence */ if (allsections || defsections || !strcasecmp(section,"persistence")) { if (sections++) info = sdscat(info,"\r\n"); info = sdscatprintf(info, "# Persistence\r\n" "loading:%d\r\n" "rdb_changes_since_last_save:%lld\r\n" "rdb_bgsave_in_progress:%d\r\n" "rdb_last_save_time:%ld\r\n" "rdb_last_bgsave_status:%s\r\n" "rdb_last_bgsave_time_sec:%ld\r\n" "rdb_current_bgsave_time_sec:%ld\r\n" "aof_enabled:%d\r\n" "aof_rewrite_in_progress:%d\r\n" "aof_rewrite_scheduled:%d\r\n" "aof_last_rewrite_time_sec:%ld\r\n" "aof_current_rewrite_time_sec:%ld\r\n" "aof_last_bgrewrite_status:%s\r\n", server.loading, server.dirty, server.rdb_child_pid != -1, server.lastsave, (server.lastbgsave_status == REDIS_OK) ? "ok" : "err", server.rdb_save_time_last, (server.rdb_child_pid == -1) ? -1 : time(NULL)-server.rdb_save_time_start, server.aof_state != REDIS_AOF_OFF, server.aof_child_pid != -1, server.aof_rewrite_scheduled, server.aof_rewrite_time_last, (server.aof_child_pid == -1) ? -1 : time(NULL)-server.aof_rewrite_time_start, (server.aof_lastbgrewrite_status == REDIS_OK) ? "ok" : "err"); if (server.aof_state != REDIS_AOF_OFF) { info = sdscatprintf(info, "aof_current_size:%lld\r\n" "aof_base_size:%lld\r\n" "aof_pending_rewrite:%d\r\n" "aof_buffer_length:%zu\r\n" "aof_rewrite_buffer_length:%lu\r\n" "aof_pending_bio_fsync:%llu\r\n" "aof_delayed_fsync:%lu\r\n", (long long) server.aof_current_size, (long long) server.aof_rewrite_base_size, server.aof_rewrite_scheduled, sdslen(server.aof_buf), aofRewriteBufferSize(), bioPendingJobsOfType(REDIS_BIO_AOF_FSYNC), server.aof_delayed_fsync); } if (server.loading) { double perc; time_t eta, elapsed; off_t remaining_bytes = server.loading_total_bytes- server.loading_loaded_bytes; perc = ((double)server.loading_loaded_bytes / server.loading_total_bytes) * 100; elapsed = server.unixtime-server.loading_start_time; if (elapsed == 0) { eta = 1; /* A fake 1 second figure if we don't have enough info */ } else { eta = (elapsed*remaining_bytes)/server.loading_loaded_bytes; } info = sdscatprintf(info, "loading_start_time:%ld\r\n" "loading_total_bytes:%llu\r\n" "loading_loaded_bytes:%llu\r\n" "loading_loaded_perc:%.2f\r\n" "loading_eta_seconds:%ld\r\n" ,(unsigned long) server.loading_start_time, (unsigned long long) server.loading_total_bytes, (unsigned long long) server.loading_loaded_bytes, perc, eta ); } } /* Stats */ if (allsections || defsections || !strcasecmp(section,"stats")) { if (sections++) info = sdscat(info,"\r\n"); info = sdscatprintf(info, "# Stats\r\n" "total_connections_received:%lld\r\n" "total_commands_processed:%lld\r\n" "instantaneous_ops_per_sec:%lld\r\n" "rejected_connections:%lld\r\n" "expired_keys:%lld\r\n" "evicted_keys:%lld\r\n" "keyspace_hits:%lld\r\n" "keyspace_misses:%lld\r\n" "pubsub_channels:%ld\r\n" "pubsub_patterns:%lu\r\n" "latest_fork_usec:%lld\r\n", server.stat_numconnections, server.stat_numcommands, getOperationsPerSecond(), server.stat_rejected_conn, server.stat_expiredkeys, server.stat_evictedkeys, server.stat_keyspace_hits, server.stat_keyspace_misses, dictSize(server.pubsub_channels), listLength(server.pubsub_patterns), server.stat_fork_time); } /* Replication */ if (allsections || defsections || !strcasecmp(section,"replication")) { if (sections++) info = sdscat(info,"\r\n"); info = sdscatprintf(info, "# Replication\r\n" "role:%s\r\n", server.masterhost == NULL ? "master" : "slave"); if (server.masterhost) { info = sdscatprintf(info, "master_host:%s\r\n" "master_port:%d\r\n" "master_link_status:%s\r\n" "master_last_io_seconds_ago:%d\r\n" "master_sync_in_progress:%d\r\n" ,server.masterhost, server.masterport, (server.repl_state == REDIS_REPL_CONNECTED) ? "up" : "down", server.master ? ((int)(server.unixtime-server.master->lastinteraction)) : -1, server.repl_state == REDIS_REPL_TRANSFER ); if (server.repl_state == REDIS_REPL_TRANSFER) { info = sdscatprintf(info, "master_sync_left_bytes:%lld\r\n" "master_sync_last_io_seconds_ago:%d\r\n" , (long long) (server.repl_transfer_size - server.repl_transfer_read), (int)(server.unixtime-server.repl_transfer_lastio) ); } if (server.repl_state != REDIS_REPL_CONNECTED) { info = sdscatprintf(info, "master_link_down_since_seconds:%ld\r\n", (long)server.unixtime-server.repl_down_since); } info = sdscatprintf(info, "slave_priority:%d\r\n" "slave_read_only:%d\r\n", server.slave_priority, server.repl_slave_ro); } info = sdscatprintf(info, "connected_slaves:%lu\r\n", listLength(server.slaves)); if (listLength(server.slaves)) { int slaveid = 0; listNode *ln; listIter li; listRewind(server.slaves,&li); while((ln = listNext(&li))) { redisClient *slave = listNodeValue(ln); char *state = NULL; char ip[32]; int port; if (anetPeerToString(slave->fd,ip,&port) == -1) continue; switch(slave->replstate) { case REDIS_REPL_WAIT_BGSAVE_START: case REDIS_REPL_WAIT_BGSAVE_END: state = "wait_bgsave"; break; case REDIS_REPL_SEND_BULK: state = "send_bulk"; break; case REDIS_REPL_ONLINE: state = "online"; break; } if (state == NULL) continue; info = sdscatprintf(info,"slave%d:%s,%d,%s\r\n", slaveid,ip,slave->slave_listening_port,state); slaveid++; } } } /* CPU */ if (allsections || defsections || !strcasecmp(section,"cpu")) { if (sections++) info = sdscat(info,"\r\n"); info = sdscatprintf(info, "# CPU\r\n" "used_cpu_sys:%.2f\r\n" "used_cpu_user:%.2f\r\n" "used_cpu_sys_children:%.2f\r\n" "used_cpu_user_children:%.2f\r\n", (float)self_ru.ru_stime.tv_sec+(float)self_ru.ru_stime.tv_usec/1000000, (float)self_ru.ru_utime.tv_sec+(float)self_ru.ru_utime.tv_usec/1000000, (float)c_ru.ru_stime.tv_sec+(float)c_ru.ru_stime.tv_usec/1000000, (float)c_ru.ru_utime.tv_sec+(float)c_ru.ru_utime.tv_usec/1000000); } /* cmdtime */ if (allsections || !strcasecmp(section,"commandstats")) { if (sections++) info = sdscat(info,"\r\n"); info = sdscatprintf(info, "# Commandstats\r\n"); numcommands = sizeof(redisCommandTable)/sizeof(struct redisCommand); for (j = 0; j < numcommands; j++) { struct redisCommand *c = redisCommandTable+j; if (!c->calls) continue; info = sdscatprintf(info, "cmdstat_%s:calls=%lld,usec=%lld,usec_per_call=%.2f\r\n", c->name, c->calls, c->microseconds, (c->calls == 0) ? 0 : ((float)c->microseconds/c->calls)); } } /* Key space */ if (allsections || defsections || !strcasecmp(section,"keyspace")) { if (sections++) info = sdscat(info,"\r\n"); info = sdscatprintf(info, "# Keyspace\r\n"); for (j = 0; j < server.dbnum; j++) { long long keys, vkeys; keys = dictSize(server.db[j].dict); vkeys = dictSize(server.db[j].expires); if (keys || vkeys) { info = sdscatprintf(info, "db%d:keys=%lld,expires=%lld,avg_ttl=%lld\r\n", j, keys, vkeys, server.db[j].avg_ttl); } } } return info; } void infoCommand(redisClient *c) { char *section = c->argc == 2 ? c->argv[1]->ptr : "default"; if (c->argc > 2) { addReply(c,shared.syntaxerr); return; } sds info = genRedisInfoString(section); addReplySds(c,sdscatprintf(sdsempty(),"$%lu\r\n", (unsigned long)sdslen(info))); addReplySds(c,info); addReply(c,shared.crlf); } void monitorCommand(redisClient *c) { /* ignore MONITOR if already slave or in monitor mode */ if (c->flags & REDIS_SLAVE) return; c->flags |= (REDIS_SLAVE|REDIS_MONITOR); c->slaveseldb = 0; listAddNodeTail(server.monitors,c); addReply(c,shared.ok); } /* ============================ Maxmemory directive ======================== */ /* This function gets called when 'maxmemory' is set on the config file to limit * the max memory used by the server, before processing a command. * * The goal of the function is to free enough memory to keep Redis under the * configured memory limit. * * The function starts calculating how many bytes should be freed to keep * Redis under the limit, and enters a loop selecting the best keys to * evict accordingly to the configured policy. * * If all the bytes needed to return back under the limit were freed the * function returns REDIS_OK, otherwise REDIS_ERR is returned, and the caller * should block the execution of commands that will result in more memory * used by the server. */ int freeMemoryIfNeeded(void) { size_t mem_used, mem_tofree, mem_freed; int slaves = listLength(server.slaves); /* Remove the size of slaves output buffers and AOF buffer from the * count of used memory. */ mem_used = zmalloc_used_memory(); if (slaves) { listIter li; listNode *ln; listRewind(server.slaves,&li); while((ln = listNext(&li))) { redisClient *slave = listNodeValue(ln); unsigned long obuf_bytes = getClientOutputBufferMemoryUsage(slave); if (obuf_bytes > mem_used) mem_used = 0; else mem_used -= obuf_bytes; } } if (server.aof_state != REDIS_AOF_OFF) { mem_used -= sdslen(server.aof_buf); mem_used -= aofRewriteBufferSize(); } /* Check if we are over the memory limit. */ if (mem_used <= server.maxmemory) return REDIS_OK; if (server.maxmemory_policy == REDIS_MAXMEMORY_NO_EVICTION) return REDIS_ERR; /* We need to free memory, but policy forbids. */ /* Compute how much memory we need to free. */ mem_tofree = mem_used - server.maxmemory; mem_freed = 0; while (mem_freed < mem_tofree) { int j, k, keys_freed = 0; for (j = 0; j < server.dbnum; j++) { long bestval = 0; /* just to prevent warning */ sds bestkey = NULL; struct dictEntry *de; redisDb *db = server.db+j; dict *dict; if (server.maxmemory_policy == REDIS_MAXMEMORY_ALLKEYS_LRU || server.maxmemory_policy == REDIS_MAXMEMORY_ALLKEYS_RANDOM) { dict = server.db[j].dict; } else { dict = server.db[j].expires; } if (dictSize(dict) == 0) continue; /* volatile-random and allkeys-random policy */ if (server.maxmemory_policy == REDIS_MAXMEMORY_ALLKEYS_RANDOM || server.maxmemory_policy == REDIS_MAXMEMORY_VOLATILE_RANDOM) { de = dictGetRandomKey(dict); bestkey = dictGetKey(de); } /* volatile-lru and allkeys-lru policy */ else if (server.maxmemory_policy == REDIS_MAXMEMORY_ALLKEYS_LRU || server.maxmemory_policy == REDIS_MAXMEMORY_VOLATILE_LRU) { for (k = 0; k < server.maxmemory_samples; k++) { sds thiskey; long thisval; robj *o; de = dictGetRandomKey(dict); thiskey = dictGetKey(de); /* When policy is volatile-lru we need an additional lookup * to locate the real key, as dict is set to db->expires. */ if (server.maxmemory_policy == REDIS_MAXMEMORY_VOLATILE_LRU) de = dictFind(db->dict, thiskey); o = dictGetVal(de); thisval = estimateObjectIdleTime(o); /* Higher idle time is better candidate for deletion */ if (bestkey == NULL || thisval > bestval) { bestkey = thiskey; bestval = thisval; } } } /* volatile-ttl */ else if (server.maxmemory_policy == REDIS_MAXMEMORY_VOLATILE_TTL) { for (k = 0; k < server.maxmemory_samples; k++) { sds thiskey; long thisval; de = dictGetRandomKey(dict); thiskey = dictGetKey(de); thisval = (long) dictGetVal(de); /* Expire sooner (minor expire unix timestamp) is better * candidate for deletion */ if (bestkey == NULL || thisval < bestval) { bestkey = thiskey; bestval = thisval; } } } /* Finally remove the selected key. */ if (bestkey) { long long delta; robj *keyobj = createStringObject(bestkey,sdslen(bestkey)); propagateExpire(db,keyobj); /* We compute the amount of memory freed by dbDelete() alone. * It is possible that actually the memory needed to propagate * the DEL in AOF and replication link is greater than the one * we are freeing removing the key, but we can't account for * that otherwise we would never exit the loop. * * AOF and Output buffer memory will be freed eventually so * we only care about memory used by the key space. */ delta = (long long) zmalloc_used_memory(); dbDelete(db,keyobj); delta -= (long long) zmalloc_used_memory(); mem_freed += delta; server.stat_evictedkeys++; decrRefCount(keyobj); keys_freed++; /* When the memory to free starts to be big enough, we may * start spending so much time here that is impossible to * deliver data to the slaves fast enough, so we force the * transmission here inside the loop. */ if (slaves) flushSlavesOutputBuffers(); } } if (!keys_freed) return REDIS_ERR; /* nothing to free... */ } return REDIS_OK; } /* =================================== Main! ================================ */ #ifdef __linux__ int linuxOvercommitMemoryValue(void) { FILE *fp = fopen("/proc/sys/vm/overcommit_memory","r"); char buf[64]; if (!fp) return -1; if (fgets(buf,64,fp) == NULL) { fclose(fp); return -1; } fclose(fp); return atoi(buf); } void linuxOvercommitMemoryWarning(void) { if (linuxOvercommitMemoryValue() == 0) { redisLog(REDIS_WARNING,"WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect."); } } #endif /* __linux__ */ void createPidFile(void) { /* Try to write the pid file in a best-effort way. */ FILE *fp = fopen(server.pidfile,"w"); if (fp) { fprintf(fp,"%d\n",(int)getpid()); fclose(fp); } } void daemonize(void) { int fd; if (fork() != 0) exit(0); /* parent exits */ setsid(); /* create a new session */ /* Every output goes to /dev/null. If Redis is daemonized but * the 'logfile' is set to 'stdout' in the configuration file * it will not log at all. */ if ((fd = open("/dev/null", O_RDWR, 0)) != -1) { dup2(fd, STDIN_FILENO); dup2(fd, STDOUT_FILENO); dup2(fd, STDERR_FILENO); if (fd > STDERR_FILENO) close(fd); } } void version() { printf("Redis server v=%s sha=%s:%d malloc=%s bits=%d\n", REDIS_VERSION, redisGitSHA1(), atoi(redisGitDirty()) > 0, ZMALLOC_LIB, sizeof(long) == 4 ? 32 : 64); exit(0); } void usage() { fprintf(stderr,"Usage: ./redis-server [/path/to/redis.conf] [options]\n"); fprintf(stderr," ./redis-server - (read config from stdin)\n"); fprintf(stderr," ./redis-server -v or --version\n"); fprintf(stderr," ./redis-server -h or --help\n"); fprintf(stderr," ./redis-server --test-memory \n\n"); fprintf(stderr,"Examples:\n"); fprintf(stderr," ./redis-server (run the server with default conf)\n"); fprintf(stderr," ./redis-server /etc/redis/6379.conf\n"); fprintf(stderr," ./redis-server --port 7777\n"); fprintf(stderr," ./redis-server --port 7777 --slaveof 127.0.0.1 8888\n"); fprintf(stderr," ./redis-server /etc/myredis.conf --loglevel verbose\n\n"); fprintf(stderr,"Sentinel mode:\n"); fprintf(stderr," ./redis-server /etc/sentinel.conf --sentinel\n"); exit(1); } void redisAsciiArt(void) { #include "asciilogo.h" char *buf = zmalloc(1024*16); char *mode = "stand alone"; if (server.sentinel_mode) mode = "sentinel"; snprintf(buf,1024*16,ascii_logo, REDIS_VERSION, redisGitSHA1(), strtol(redisGitDirty(),NULL,10) > 0, (sizeof(long) == 8) ? "64" : "32", mode, server.port, (long) getpid() ); redisLogRaw(REDIS_NOTICE|REDIS_LOG_RAW,buf); zfree(buf); } static void sigtermHandler(int sig) { REDIS_NOTUSED(sig); redisLogFromHandler(REDIS_WARNING,"Received SIGTERM, scheduling shutdown..."); server.shutdown_asap = 1; } void setupSignalHandlers(void) { struct sigaction act; /* When the SA_SIGINFO flag is set in sa_flags then sa_sigaction is used. * Otherwise, sa_handler is used. */ sigemptyset(&act.sa_mask); act.sa_flags = 0; act.sa_handler = sigtermHandler; sigaction(SIGTERM, &act, NULL); #ifdef HAVE_BACKTRACE sigemptyset(&act.sa_mask); act.sa_flags = SA_NODEFER | SA_RESETHAND | SA_SIGINFO; act.sa_sigaction = sigsegvHandler; sigaction(SIGSEGV, &act, NULL); sigaction(SIGBUS, &act, NULL); sigaction(SIGFPE, &act, NULL); sigaction(SIGILL, &act, NULL); #endif return; } void memtest(size_t megabytes, int passes); /* Returns 1 if there is --sentinel among the arguments or if * argv[0] is exactly "redis-sentinel". */ int checkForSentinelMode(int argc, char **argv) { int j; if (strstr(argv[0],"redis-sentinel") != NULL) return 1; for (j = 1; j < argc; j++) if (!strcmp(argv[j],"--sentinel")) return 1; return 0; } /* Function called at startup to load RDB or AOF file in memory. */ void loadDataFromDisk(void) { long long start = ustime(); if (server.aof_state == REDIS_AOF_ON) { if (loadAppendOnlyFile(server.aof_filename) == REDIS_OK) redisLog(REDIS_NOTICE,"DB loaded from append only file: %.3f seconds",(float)(ustime()-start)/1000000); } else { if (rdbLoad(server.rdb_filename) == REDIS_OK) { redisLog(REDIS_NOTICE,"DB loaded from disk: %.3f seconds", (float)(ustime()-start)/1000000); } else if (errno != ENOENT) { redisLog(REDIS_WARNING,"Fatal error loading the DB: %s. Exiting.",strerror(errno)); exit(1); } } } void redisOutOfMemoryHandler(size_t allocation_size) { redisLog(REDIS_WARNING,"Out Of Memory allocating %zu bytes!", allocation_size); redisPanic("Redis aborting for OUT OF MEMORY"); } int main(int argc, char **argv) { struct timeval tv; /* We need to initialize our libraries, and the server configuration. */ zmalloc_enable_thread_safeness(); zmalloc_set_oom_handler(redisOutOfMemoryHandler); srand(time(NULL)^getpid()); gettimeofday(&tv,NULL); dictSetHashFunctionSeed(tv.tv_sec^tv.tv_usec^getpid()); server.sentinel_mode = checkForSentinelMode(argc,argv); initServerConfig(); /* We need to init sentinel right now as parsing the configuration file * in sentinel mode will have the effect of populating the sentinel * data structures with master nodes to monitor. */ if (server.sentinel_mode) { initSentinelConfig(); initSentinel(); } if (argc >= 2) { int j = 1; /* First option to parse in argv[] */ sds options = sdsempty(); char *configfile = NULL; /* Handle special options --help and --version */ if (strcmp(argv[1], "-v") == 0 || strcmp(argv[1], "--version") == 0) version(); if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-h") == 0) usage(); if (strcmp(argv[1], "--test-memory") == 0) { if (argc == 3) { memtest(atoi(argv[2]),50); exit(0); } else { fprintf(stderr,"Please specify the amount of memory to test in megabytes.\n"); fprintf(stderr,"Example: ./redis-server --test-memory 4096\n\n"); exit(1); } } /* First argument is the config file name? */ if (argv[j][0] != '-' || argv[j][1] != '-') configfile = argv[j++]; /* All the other options are parsed and conceptually appended to the * configuration file. For instance --port 6380 will generate the * string "port 6380\n" to be parsed after the actual file name * is parsed, if any. */ while(j != argc) { if (argv[j][0] == '-' && argv[j][1] == '-') { /* Option name */ if (sdslen(options)) options = sdscat(options,"\n"); options = sdscat(options,argv[j]+2); options = sdscat(options," "); } else { /* Option argument */ options = sdscatrepr(options,argv[j],strlen(argv[j])); options = sdscat(options," "); } j++; } resetServerSaveParams(); loadServerConfig(configfile,options); sdsfree(options); } else { redisLog(REDIS_WARNING, "Warning: no config file specified, using the default config. In order to specify a config file use %s /path/to/%s.conf", argv[0], server.sentinel_mode ? "sentinel" : "redis"); } if (server.daemonize) daemonize(); initServer(); if (server.daemonize) createPidFile(); redisAsciiArt(); if (!server.sentinel_mode) { /* Things only needed when not running in Sentinel mode. */ redisLog(REDIS_WARNING,"Server started, Redis version " REDIS_VERSION); #ifdef __linux__ linuxOvercommitMemoryWarning(); #endif loadDataFromDisk(); if (server.ipfd > 0) redisLog(REDIS_NOTICE,"The server is now ready to accept connections on port %d", server.port); if (server.sofd > 0) redisLog(REDIS_NOTICE,"The server is now ready to accept connections at %s", server.unixsocket); } /* Warning the user about suspicious maxmemory setting. */ if (server.maxmemory > 0 && server.maxmemory < 1024*1024) { redisLog(REDIS_WARNING,"WARNING: You specified a maxmemory value that is less than 1MB (current value is %llu bytes). Are you sure this is what you really want?", server.maxmemory); } aeSetBeforeSleepProc(server.el,beforeSleep); aeMain(server.el); aeDeleteEventLoop(server.el); return 0; } /* The End */ redis-2.6.16/src/redis.h000066400000000000000000001465041220734223100147700ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __REDIS_H #define __REDIS_H #include "fmacros.h" #include "config.h" #if defined(__sun) #include "solarisfixes.h" #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ae.h" /* Event driven programming library */ #include "sds.h" /* Dynamic safe strings */ #include "dict.h" /* Hash tables */ #include "adlist.h" /* Linked lists */ #include "zmalloc.h" /* total memory usage aware version of malloc/free */ #include "anet.h" /* Networking the easy way */ #include "ziplist.h" /* Compact list data structure */ #include "intset.h" /* Compact integer set structure */ #include "version.h" /* Version macro */ #include "util.h" /* Misc functions useful in many places */ /* Error codes */ #define REDIS_OK 0 #define REDIS_ERR -1 /* Static server configuration */ #define REDIS_DEFAULT_HZ 10 /* Time interrupt calls/sec. */ #define REDIS_MIN_HZ 1 #define REDIS_MAX_HZ 500 #define REDIS_SERVERPORT 6379 /* TCP port */ #define REDIS_MAXIDLETIME 0 /* default client timeout: infinite */ #define REDIS_DEFAULT_DBNUM 16 #define REDIS_CONFIGLINE_MAX 1024 #define REDIS_DBCRON_DBS_PER_CALL 16 #define REDIS_MAX_WRITE_PER_EVENT (1024*64) #define REDIS_SHARED_SELECT_CMDS 10 #define REDIS_SHARED_INTEGERS 10000 #define REDIS_SHARED_BULKHDR_LEN 32 #define REDIS_MAX_LOGMSG_LEN 1024 /* Default maximum length of syslog messages */ #define REDIS_AOF_REWRITE_PERC 100 #define REDIS_AOF_REWRITE_MIN_SIZE (1024*1024) #define REDIS_AOF_REWRITE_ITEMS_PER_CMD 64 #define REDIS_SLOWLOG_LOG_SLOWER_THAN 10000 #define REDIS_SLOWLOG_MAX_LEN 128 #define REDIS_MAX_CLIENTS 10000 #define REDIS_AUTHPASS_MAX_LEN 512 #define REDIS_DEFAULT_SLAVE_PRIORITY 100 #define REDIS_REPL_TIMEOUT 60 #define REDIS_REPL_PING_SLAVE_PERIOD 10 #define REDIS_RUN_ID_SIZE 40 #define REDIS_OPS_SEC_SAMPLES 16 #define REDIS_BGSAVE_RETRY_DELAY 5 /* Wait a few secs before trying again. */ #define ACTIVE_EXPIRE_CYCLE_LOOKUPS_PER_LOOP 20 /* Loopkups per loop. */ #define ACTIVE_EXPIRE_CYCLE_FAST_DURATION 1000 /* Microseconds */ #define ACTIVE_EXPIRE_CYCLE_SLOW_TIME_PERC 25 /* CPU max % for keys collection */ #define ACTIVE_EXPIRE_CYCLE_SLOW 0 #define ACTIVE_EXPIRE_CYCLE_FAST 1 /* Protocol and I/O related defines */ #define REDIS_MAX_QUERYBUF_LEN (1024*1024*1024) /* 1GB max query buffer. */ #define REDIS_IOBUF_LEN (1024*16) /* Generic I/O buffer size */ #define REDIS_REPLY_CHUNK_BYTES (16*1024) /* 16k output buffer */ #define REDIS_INLINE_MAX_SIZE (1024*64) /* Max size of inline reads */ #define REDIS_MBULK_BIG_ARG (1024*32) #define REDIS_AOF_AUTOSYNC_BYTES (1024*1024*32) /* fdatasync every 32MB */ /* Hash table parameters */ #define REDIS_HT_MINFILL 10 /* Minimal hash table fill 10% */ /* Command flags. Please check the command table defined in the redis.c file * for more information about the meaning of every flag. */ #define REDIS_CMD_WRITE 1 /* "w" flag */ #define REDIS_CMD_READONLY 2 /* "r" flag */ #define REDIS_CMD_DENYOOM 4 /* "m" flag */ #define REDIS_CMD_FORCE_REPLICATION 8 /* "f" flag */ #define REDIS_CMD_ADMIN 16 /* "a" flag */ #define REDIS_CMD_PUBSUB 32 /* "p" flag */ #define REDIS_CMD_NOSCRIPT 64 /* "s" flag */ #define REDIS_CMD_RANDOM 128 /* "R" flag */ #define REDIS_CMD_SORT_FOR_SCRIPT 256 /* "S" flag */ #define REDIS_CMD_LOADING 512 /* "l" flag */ #define REDIS_CMD_STALE 1024 /* "t" flag */ #define REDIS_CMD_SKIP_MONITOR 2048 /* "M" flag */ /* Object types */ #define REDIS_STRING 0 #define REDIS_LIST 1 #define REDIS_SET 2 #define REDIS_ZSET 3 #define REDIS_HASH 4 /* Objects encoding. Some kind of objects like Strings and Hashes can be * internally represented in multiple ways. The 'encoding' field of the object * is set to one of this fields for this object. */ #define REDIS_ENCODING_RAW 0 /* Raw representation */ #define REDIS_ENCODING_INT 1 /* Encoded as integer */ #define REDIS_ENCODING_HT 2 /* Encoded as hash table */ #define REDIS_ENCODING_ZIPMAP 3 /* Encoded as zipmap */ #define REDIS_ENCODING_LINKEDLIST 4 /* Encoded as regular linked list */ #define REDIS_ENCODING_ZIPLIST 5 /* Encoded as ziplist */ #define REDIS_ENCODING_INTSET 6 /* Encoded as intset */ #define REDIS_ENCODING_SKIPLIST 7 /* Encoded as skiplist */ /* Defines related to the dump file format. To store 32 bits lengths for short * keys requires a lot of space, so we check the most significant 2 bits of * the first byte to interpreter the length: * * 00|000000 => if the two MSB are 00 the len is the 6 bits of this byte * 01|000000 00000000 => 01, the len is 14 byes, 6 bits + 8 bits of next byte * 10|000000 [32 bit integer] => if it's 10, a full 32 bit len will follow * 11|000000 this means: specially encoded object will follow. The six bits * number specify the kind of object that follows. * See the REDIS_RDB_ENC_* defines. * * Lengths up to 63 are stored using a single byte, most DB keys, and may * values, will fit inside. */ #define REDIS_RDB_6BITLEN 0 #define REDIS_RDB_14BITLEN 1 #define REDIS_RDB_32BITLEN 2 #define REDIS_RDB_ENCVAL 3 #define REDIS_RDB_LENERR UINT_MAX /* When a length of a string object stored on disk has the first two bits * set, the remaining two bits specify a special encoding for the object * accordingly to the following defines: */ #define REDIS_RDB_ENC_INT8 0 /* 8 bit signed integer */ #define REDIS_RDB_ENC_INT16 1 /* 16 bit signed integer */ #define REDIS_RDB_ENC_INT32 2 /* 32 bit signed integer */ #define REDIS_RDB_ENC_LZF 3 /* string compressed with FASTLZ */ /* AOF states */ #define REDIS_AOF_OFF 0 /* AOF is off */ #define REDIS_AOF_ON 1 /* AOF is on */ #define REDIS_AOF_WAIT_REWRITE 2 /* AOF waits rewrite to start appending */ /* Client flags */ #define REDIS_SLAVE (1<<0) /* This client is a slave server */ #define REDIS_MASTER (1<<1) /* This client is a master server */ #define REDIS_MONITOR (1<<2) /* This client is a slave monitor, see MONITOR */ #define REDIS_MULTI (1<<3) /* This client is in a MULTI context */ #define REDIS_BLOCKED (1<<4) /* The client is waiting in a blocking operation */ #define REDIS_DIRTY_CAS (1<<5) /* Watched keys modified. EXEC will fail. */ #define REDIS_CLOSE_AFTER_REPLY (1<<6) /* Close after writing entire reply. */ #define REDIS_UNBLOCKED (1<<7) /* This client was unblocked and is stored in server.unblocked_clients */ #define REDIS_LUA_CLIENT (1<<8) /* This is a non connected client used by Lua */ #define REDIS_ASKING (1<<9) /* Client issued the ASKING command */ #define REDIS_CLOSE_ASAP (1<<10)/* Close this client ASAP */ #define REDIS_UNIX_SOCKET (1<<11) /* Client connected via Unix domain socket */ #define REDIS_DIRTY_EXEC (1<<12) /* EXEC will fail for errors while queueing */ /* Client request types */ #define REDIS_REQ_INLINE 1 #define REDIS_REQ_MULTIBULK 2 /* Client classes for client limits, currently used only for * the max-client-output-buffer limit implementation. */ #define REDIS_CLIENT_LIMIT_CLASS_NORMAL 0 #define REDIS_CLIENT_LIMIT_CLASS_SLAVE 1 #define REDIS_CLIENT_LIMIT_CLASS_PUBSUB 2 #define REDIS_CLIENT_LIMIT_NUM_CLASSES 3 /* Slave replication state - slave side */ #define REDIS_REPL_NONE 0 /* No active replication */ #define REDIS_REPL_CONNECT 1 /* Must connect to master */ #define REDIS_REPL_CONNECTING 2 /* Connecting to master */ #define REDIS_REPL_RECEIVE_PONG 3 /* Wait for PING reply */ #define REDIS_REPL_TRANSFER 4 /* Receiving .rdb from master */ #define REDIS_REPL_CONNECTED 5 /* Connected to master */ /* Synchronous read timeout - slave side */ #define REDIS_REPL_SYNCIO_TIMEOUT 5 /* Slave replication state - from the point of view of master * Note that in SEND_BULK and ONLINE state the slave receives new updates * in its output queue. In the WAIT_BGSAVE state instead the server is waiting * to start the next background saving in order to send updates to it. */ #define REDIS_REPL_WAIT_BGSAVE_START 3 /* master waits bgsave to start feeding it */ #define REDIS_REPL_WAIT_BGSAVE_END 4 /* master waits bgsave to start bulk DB transmission */ #define REDIS_REPL_SEND_BULK 5 /* master is sending the bulk DB */ #define REDIS_REPL_ONLINE 6 /* bulk DB already transmitted, receive updates */ /* List related stuff */ #define REDIS_HEAD 0 #define REDIS_TAIL 1 /* Sort operations */ #define REDIS_SORT_GET 0 #define REDIS_SORT_ASC 1 #define REDIS_SORT_DESC 2 #define REDIS_SORTKEY_MAX 1024 /* Log levels */ #define REDIS_DEBUG 0 #define REDIS_VERBOSE 1 #define REDIS_NOTICE 2 #define REDIS_WARNING 3 #define REDIS_LOG_RAW (1<<10) /* Modifier to log without timestamp */ /* Anti-warning macro... */ #define REDIS_NOTUSED(V) ((void) V) #define ZSKIPLIST_MAXLEVEL 32 /* Should be enough for 2^32 elements */ #define ZSKIPLIST_P 0.25 /* Skiplist P = 1/4 */ /* Append only defines */ #define AOF_FSYNC_NO 0 #define AOF_FSYNC_ALWAYS 1 #define AOF_FSYNC_EVERYSEC 2 /* Zip structure related defaults */ #define REDIS_HASH_MAX_ZIPLIST_ENTRIES 512 #define REDIS_HASH_MAX_ZIPLIST_VALUE 64 #define REDIS_LIST_MAX_ZIPLIST_ENTRIES 512 #define REDIS_LIST_MAX_ZIPLIST_VALUE 64 #define REDIS_SET_MAX_INTSET_ENTRIES 512 #define REDIS_ZSET_MAX_ZIPLIST_ENTRIES 128 #define REDIS_ZSET_MAX_ZIPLIST_VALUE 64 /* Sets operations codes */ #define REDIS_OP_UNION 0 #define REDIS_OP_DIFF 1 #define REDIS_OP_INTER 2 /* Redis maxmemory strategies */ #define REDIS_MAXMEMORY_VOLATILE_LRU 0 #define REDIS_MAXMEMORY_VOLATILE_TTL 1 #define REDIS_MAXMEMORY_VOLATILE_RANDOM 2 #define REDIS_MAXMEMORY_ALLKEYS_LRU 3 #define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4 #define REDIS_MAXMEMORY_NO_EVICTION 5 /* Scripting */ #define REDIS_LUA_TIME_LIMIT 5000 /* milliseconds */ /* Units */ #define UNIT_SECONDS 0 #define UNIT_MILLISECONDS 1 /* SHUTDOWN flags */ #define REDIS_SHUTDOWN_SAVE 1 /* Force SAVE on SHUTDOWN even if no save points are configured. */ #define REDIS_SHUTDOWN_NOSAVE 2 /* Don't SAVE on SHUTDOWN. */ /* Command call flags, see call() function */ #define REDIS_CALL_NONE 0 #define REDIS_CALL_SLOWLOG 1 #define REDIS_CALL_STATS 2 #define REDIS_CALL_PROPAGATE 4 #define REDIS_CALL_FULL (REDIS_CALL_SLOWLOG | REDIS_CALL_STATS | REDIS_CALL_PROPAGATE) /* Command propagation flags, see propagate() function */ #define REDIS_PROPAGATE_NONE 0 #define REDIS_PROPAGATE_AOF 1 #define REDIS_PROPAGATE_REPL 2 /* Using the following macro you can run code inside serverCron() with the * specified period, specified in milliseconds. * The actual resolution depends on server.hz. */ #define run_with_period(_ms_) if ((_ms_ <= 1000/server.hz) || !(server.cronloops%((_ms_)/(1000/server.hz)))) /* We can print the stacktrace, so our assert is defined this way: */ #define redisAssertWithInfo(_c,_o,_e) ((_e)?(void)0 : (_redisAssertWithInfo(_c,_o,#_e,__FILE__,__LINE__),_exit(1))) #define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1))) #define redisPanic(_e) _redisPanic(#_e,__FILE__,__LINE__),_exit(1) /*----------------------------------------------------------------------------- * Data types *----------------------------------------------------------------------------*/ /* A redis object, that is a type able to hold a string / list / set */ /* The actual Redis Object */ #define REDIS_LRU_CLOCK_MAX ((1<<21)-1) /* Max value of obj->lru */ #define REDIS_LRU_CLOCK_RESOLUTION 10 /* LRU clock resolution in seconds */ typedef struct redisObject { unsigned type:4; unsigned notused:2; /* Not used */ unsigned encoding:4; unsigned lru:22; /* lru time (relative to server.lruclock) */ int refcount; void *ptr; } robj; /* Macro used to initialize a Redis object allocated on the stack. * Note that this macro is taken near the structure definition to make sure * we'll update it when the structure is changed, to avoid bugs like * bug #85 introduced exactly in this way. */ #define initStaticStringObject(_var,_ptr) do { \ _var.refcount = 1; \ _var.type = REDIS_STRING; \ _var.encoding = REDIS_ENCODING_RAW; \ _var.ptr = _ptr; \ } while(0); typedef struct redisDb { dict *dict; /* The keyspace for this DB */ dict *expires; /* Timeout of keys with a timeout set */ dict *blocking_keys; /* Keys with clients waiting for data (BLPOP) */ dict *ready_keys; /* Blocked keys that received a PUSH */ dict *watched_keys; /* WATCHED keys for MULTI/EXEC CAS */ int id; long long avg_ttl; /* Average TTL, just for stats */ } redisDb; /* Client MULTI/EXEC state */ typedef struct multiCmd { robj **argv; int argc; struct redisCommand *cmd; } multiCmd; typedef struct multiState { multiCmd *commands; /* Array of MULTI commands */ int count; /* Total number of MULTI commands */ } multiState; typedef struct blockingState { dict *keys; /* The keys we are waiting to terminate a blocking * operation such as BLPOP. Otherwise NULL. */ time_t timeout; /* Blocking operation timeout. If UNIX current time * is >= timeout then the operation timed out. */ robj *target; /* The key that should receive the element, * for BRPOPLPUSH. */ } blockingState; /* The following structure represents a node in the server.ready_keys list, * where we accumulate all the keys that had clients blocked with a blocking * operation such as B[LR]POP, but received new data in the context of the * last executed command. * * After the execution of every command or script, we run this list to check * if as a result we should serve data to clients blocked, unblocking them. * Note that server.ready_keys will not have duplicates as there dictionary * also called ready_keys in every structure representing a Redis database, * where we make sure to remember if a given key was already added in the * server.ready_keys list. */ typedef struct readyList { redisDb *db; robj *key; } readyList; /* With multiplexing we need to take per-client state. * Clients are taken in a liked list. */ typedef struct redisClient { int fd; redisDb *db; int dictid; robj *name; /* As set by CLIENT SETNAME */ sds querybuf; size_t querybuf_peak; /* Recent (100ms or more) peak of querybuf size */ int argc; robj **argv; struct redisCommand *cmd, *lastcmd; int reqtype; int multibulklen; /* number of multi bulk arguments left to read */ long bulklen; /* length of bulk argument in multi bulk request */ list *reply; unsigned long reply_bytes; /* Tot bytes of objects in reply list */ int sentlen; time_t ctime; /* Client creation time */ time_t lastinteraction; /* time of the last interaction, used for timeout */ time_t obuf_soft_limit_reached_time; int flags; /* REDIS_SLAVE | REDIS_MONITOR | REDIS_MULTI ... */ int slaveseldb; /* slave selected db, if this client is a slave */ int authenticated; /* when requirepass is non-NULL */ int replstate; /* replication state if this is a slave */ int repldbfd; /* replication DB file descriptor */ long repldboff; /* replication DB file offset */ off_t repldbsize; /* replication DB file size */ int slave_listening_port; /* As configured with: SLAVECONF listening-port */ multiState mstate; /* MULTI/EXEC state */ blockingState bpop; /* blocking state */ list *io_keys; /* Keys this client is waiting to be loaded from the * swap file in order to continue. */ list *watched_keys; /* Keys WATCHED for MULTI/EXEC CAS */ dict *pubsub_channels; /* channels a client is interested in (SUBSCRIBE) */ list *pubsub_patterns; /* patterns a client is interested in (SUBSCRIBE) */ /* Response buffer */ int bufpos; char buf[REDIS_REPLY_CHUNK_BYTES]; } redisClient; struct saveparam { time_t seconds; int changes; }; struct sharedObjectsStruct { robj *crlf, *ok, *err, *emptybulk, *czero, *cone, *cnegone, *pong, *space, *colon, *nullbulk, *nullmultibulk, *queued, *emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr, *outofrangeerr, *noscripterr, *loadingerr, *slowscripterr, *bgsaveerr, *masterdownerr, *roslaveerr, *execaborterr, *oomerr, *plus, *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, *psubscribebulk, *punsubscribebulk, *del, *rpop, *lpop, *lpush, *select[REDIS_SHARED_SELECT_CMDS], *integers[REDIS_SHARED_INTEGERS], *mbulkhdr[REDIS_SHARED_BULKHDR_LEN], /* "*\r\n" */ *bulkhdr[REDIS_SHARED_BULKHDR_LEN]; /* "$\r\n" */ }; /* ZSETs use a specialized version of Skiplists */ typedef struct zskiplistNode { robj *obj; double score; struct zskiplistNode *backward; struct zskiplistLevel { struct zskiplistNode *forward; unsigned int span; } level[]; } zskiplistNode; typedef struct zskiplist { struct zskiplistNode *header, *tail; unsigned long length; int level; } zskiplist; typedef struct zset { dict *dict; zskiplist *zsl; } zset; typedef struct clientBufferLimitsConfig { unsigned long long hard_limit_bytes; unsigned long long soft_limit_bytes; time_t soft_limit_seconds; } clientBufferLimitsConfig; /* The redisOp structure defines a Redis Operation, that is an instance of * a command with an argument vector, database ID, propagation target * (REDIS_PROPAGATE_*), and command pointer. * * Currently only used to additionally propagate more commands to AOF/Replication * after the propagation of the executed command. */ typedef struct redisOp { robj **argv; int argc, dbid, target; struct redisCommand *cmd; } redisOp; /* Defines an array of Redis operations. There is an API to add to this * structure in a easy way. * * redisOpArrayInit(); * redisOpArrayAppend(); * redisOpArrayFree(); */ typedef struct redisOpArray { redisOp *ops; int numops; } redisOpArray; /*----------------------------------------------------------------------------- * Global server state *----------------------------------------------------------------------------*/ struct redisServer { /* General */ int hz; /* serverCron() calls frequency in hertz */ redisDb *db; dict *commands; /* Command table */ dict *orig_commands; /* Command table before command renaming. */ aeEventLoop *el; unsigned lruclock:22; /* Clock incrementing every minute, for LRU */ unsigned lruclock_padding:10; int shutdown_asap; /* SHUTDOWN needed ASAP */ int activerehashing; /* Incremental rehash in serverCron() */ char *requirepass; /* Pass for AUTH command, or NULL */ char *pidfile; /* PID file path */ int arch_bits; /* 32 or 64 depending on sizeof(long) */ int cronloops; /* Number of times the cron function run */ char runid[REDIS_RUN_ID_SIZE+1]; /* ID always different at every exec. */ int sentinel_mode; /* True if this instance is a Sentinel. */ /* Networking */ int port; /* TCP listening port */ char *bindaddr; /* Bind address or NULL */ char *unixsocket; /* UNIX socket path */ mode_t unixsocketperm; /* UNIX socket permission */ int ipfd; /* TCP socket file descriptor */ int sofd; /* Unix socket file descriptor */ list *clients; /* List of active clients */ list *clients_to_close; /* Clients to close asynchronously */ list *slaves, *monitors; /* List of slaves and MONITORs */ redisClient *current_client; /* Current client, only used on crash report */ char neterr[ANET_ERR_LEN]; /* Error buffer for anet.c */ /* RDB / AOF loading information */ int loading; /* We are loading data from disk if true */ off_t loading_total_bytes; off_t loading_loaded_bytes; time_t loading_start_time; /* Fast pointers to often looked up command */ struct redisCommand *delCommand, *multiCommand, *lpushCommand, *lpopCommand, *rpopCommand; /* Fields used only for stats */ time_t stat_starttime; /* Server start time */ long long stat_numcommands; /* Number of processed commands */ long long stat_numconnections; /* Number of connections received */ long long stat_expiredkeys; /* Number of expired keys */ long long stat_evictedkeys; /* Number of evicted keys (maxmemory) */ long long stat_keyspace_hits; /* Number of successful lookups of keys */ long long stat_keyspace_misses; /* Number of failed lookups of keys */ size_t stat_peak_memory; /* Max used memory record */ long long stat_fork_time; /* Time needed to perform latest fork() */ long long stat_rejected_conn; /* Clients rejected because of maxclients */ list *slowlog; /* SLOWLOG list of commands */ long long slowlog_entry_id; /* SLOWLOG current entry ID */ long long slowlog_log_slower_than; /* SLOWLOG time limit (to get logged) */ unsigned long slowlog_max_len; /* SLOWLOG max number of items logged */ /* The following two are used to track instantaneous "load" in terms * of operations per second. */ long long ops_sec_last_sample_time; /* Timestamp of last sample (in ms) */ long long ops_sec_last_sample_ops; /* numcommands in last sample */ long long ops_sec_samples[REDIS_OPS_SEC_SAMPLES]; int ops_sec_idx; /* Configuration */ int verbosity; /* Loglevel in redis.conf */ int maxidletime; /* Client timeout in seconds */ int tcpkeepalive; /* Set SO_KEEPALIVE if non-zero. */ int active_expire_enabled; /* Can be disabled for testing purposes. */ size_t client_max_querybuf_len; /* Limit for client query buffer length */ int dbnum; /* Total number of configured DBs */ int daemonize; /* True if running as a daemon */ clientBufferLimitsConfig client_obuf_limits[REDIS_CLIENT_LIMIT_NUM_CLASSES]; /* AOF persistence */ int aof_state; /* REDIS_AOF_(ON|OFF|WAIT_REWRITE) */ int aof_fsync; /* Kind of fsync() policy */ char *aof_filename; /* Name of the AOF file */ int aof_no_fsync_on_rewrite; /* Don't fsync if a rewrite is in prog. */ int aof_rewrite_perc; /* Rewrite AOF if % growth is > M and... */ off_t aof_rewrite_min_size; /* the AOF file is at least N bytes. */ off_t aof_rewrite_base_size; /* AOF size on latest startup or rewrite. */ off_t aof_current_size; /* AOF current size. */ int aof_rewrite_scheduled; /* Rewrite once BGSAVE terminates. */ pid_t aof_child_pid; /* PID if rewriting process */ list *aof_rewrite_buf_blocks; /* Hold changes during an AOF rewrite. */ sds aof_buf; /* AOF buffer, written before entering the event loop */ int aof_fd; /* File descriptor of currently selected AOF file */ int aof_selected_db; /* Currently selected DB in AOF */ time_t aof_flush_postponed_start; /* UNIX time of postponed AOF flush */ time_t aof_last_fsync; /* UNIX time of last fsync() */ time_t aof_rewrite_time_last; /* Time used by last AOF rewrite run. */ time_t aof_rewrite_time_start; /* Current AOF rewrite start time. */ int aof_lastbgrewrite_status; /* REDIS_OK or REDIS_ERR */ unsigned long aof_delayed_fsync; /* delayed AOF fsync() counter */ int aof_rewrite_incremental_fsync;/* fsync incrementally while rewriting? */ /* RDB persistence */ long long dirty; /* Changes to DB from the last save */ long long dirty_before_bgsave; /* Used to restore dirty on failed BGSAVE */ pid_t rdb_child_pid; /* PID of RDB saving child */ struct saveparam *saveparams; /* Save points array for RDB */ int saveparamslen; /* Number of saving points */ char *rdb_filename; /* Name of RDB file */ int rdb_compression; /* Use compression in RDB? */ int rdb_checksum; /* Use RDB checksum? */ time_t lastsave; /* Unix time of last successful save */ time_t lastbgsave_try; /* Unix time of last attempted bgsave */ time_t rdb_save_time_last; /* Time used by last RDB save run. */ time_t rdb_save_time_start; /* Current RDB save start time. */ int lastbgsave_status; /* REDIS_OK or REDIS_ERR */ int stop_writes_on_bgsave_err; /* Don't allow writes if can't BGSAVE */ /* Propagation of commands in AOF / replication */ redisOpArray also_propagate; /* Additional command to propagate. */ /* Logging */ char *logfile; /* Path of log file */ int syslog_enabled; /* Is syslog enabled? */ char *syslog_ident; /* Syslog ident */ int syslog_facility; /* Syslog facility */ /* Slave specific fields */ char *masterauth; /* AUTH with this password with master */ char *masterhost; /* Hostname of master */ int masterport; /* Port of master */ int repl_ping_slave_period; /* Master pings the slave every N seconds */ int repl_timeout; /* Timeout after N seconds of master idle */ redisClient *master; /* Client that is master for this slave */ int repl_syncio_timeout; /* Timeout for synchronous I/O calls */ int repl_state; /* Replication status if the instance is a slave */ off_t repl_transfer_size; /* Size of RDB to read from master during sync. */ off_t repl_transfer_read; /* Amount of RDB read from master during sync. */ off_t repl_transfer_last_fsync_off; /* Offset when we fsync-ed last time. */ int repl_transfer_s; /* Slave -> Master SYNC socket */ int repl_transfer_fd; /* Slave -> Master SYNC temp file descriptor */ char *repl_transfer_tmpfile; /* Slave-> master SYNC temp file name */ time_t repl_transfer_lastio; /* Unix time of the latest read, for timeout */ int repl_serve_stale_data; /* Serve stale data when link is down? */ int repl_slave_ro; /* Slave is read only? */ time_t repl_down_since; /* Unix time at which link with master went down */ int repl_disable_tcp_nodelay; /* Disable TCP_NODELAY after SYNC? */ int slave_priority; /* Reported in INFO and used by Sentinel. */ /* Limits */ unsigned int maxclients; /* Max number of simultaneous clients */ unsigned long long maxmemory; /* Max number of memory bytes to use */ int maxmemory_policy; /* Policy for key eviction */ int maxmemory_samples; /* Pricision of random sampling */ /* Blocked clients */ unsigned int bpop_blocked_clients; /* Number of clients blocked by lists */ list *unblocked_clients; /* list of clients to unblock before next loop */ list *ready_keys; /* List of readyList structures for BLPOP & co */ /* Sort parameters - qsort_r() is only available under BSD so we * have to take this state global, in order to pass it to sortCompare() */ int sort_desc; int sort_alpha; int sort_bypattern; /* Zip structure config, see redis.conf for more information */ size_t hash_max_ziplist_entries; size_t hash_max_ziplist_value; size_t list_max_ziplist_entries; size_t list_max_ziplist_value; size_t set_max_intset_entries; size_t zset_max_ziplist_entries; size_t zset_max_ziplist_value; time_t unixtime; /* Unix time sampled every cron cycle. */ long long mstime; /* Like 'unixtime' but with milliseconds resolution. */ /* Pubsub */ dict *pubsub_channels; /* Map channels to list of subscribed clients */ list *pubsub_patterns; /* A list of pubsub_patterns */ /* Scripting */ lua_State *lua; /* The Lua interpreter. We use just one for all clients */ redisClient *lua_client; /* The "fake client" to query Redis from Lua */ redisClient *lua_caller; /* The client running EVAL right now, or NULL */ dict *lua_scripts; /* A dictionary of SHA1 -> Lua scripts */ long long lua_time_limit; /* Script timeout in seconds */ long long lua_time_start; /* Start time of script */ int lua_write_dirty; /* True if a write command was called during the execution of the current script. */ int lua_random_dirty; /* True if a random command was called during the execution of the current script. */ int lua_timedout; /* True if we reached the time limit for script execution. */ int lua_kill; /* Kill the script if true. */ /* Assert & bug reporting */ char *assert_failed; char *assert_file; int assert_line; int bug_report_start; /* True if bug report header was already logged. */ int watchdog_period; /* Software watchdog period in ms. 0 = off */ }; typedef struct pubsubPattern { redisClient *client; robj *pattern; } pubsubPattern; typedef void redisCommandProc(redisClient *c); typedef int *redisGetKeysProc(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags); struct redisCommand { char *name; redisCommandProc *proc; int arity; char *sflags; /* Flags as string representation, one char per flag. */ int flags; /* The actual flags, obtained from the 'sflags' field. */ /* Use a function to determine keys arguments in a command line. */ redisGetKeysProc *getkeys_proc; /* What keys should be loaded in background when calling this command? */ int firstkey; /* The first argument that's a key (0 = no keys) */ int lastkey; /* The last argument that's a key */ int keystep; /* The step between first and last key */ long long microseconds, calls; }; struct redisFunctionSym { char *name; unsigned long pointer; }; typedef struct _redisSortObject { robj *obj; union { double score; robj *cmpobj; } u; } redisSortObject; typedef struct _redisSortOperation { int type; robj *pattern; } redisSortOperation; /* Structure to hold list iteration abstraction. */ typedef struct { robj *subject; unsigned char encoding; unsigned char direction; /* Iteration direction */ unsigned char *zi; listNode *ln; } listTypeIterator; /* Structure for an entry while iterating over a list. */ typedef struct { listTypeIterator *li; unsigned char *zi; /* Entry in ziplist */ listNode *ln; /* Entry in linked list */ } listTypeEntry; /* Structure to hold set iteration abstraction. */ typedef struct { robj *subject; int encoding; int ii; /* intset iterator */ dictIterator *di; } setTypeIterator; /* Structure to hold hash iteration abstraction. Note that iteration over * hashes involves both fields and values. Because it is possible that * not both are required, store pointers in the iterator to avoid * unnecessary memory allocation for fields/values. */ typedef struct { robj *subject; int encoding; unsigned char *fptr, *vptr; dictIterator *di; dictEntry *de; } hashTypeIterator; #define REDIS_HASH_KEY 1 #define REDIS_HASH_VALUE 2 /*----------------------------------------------------------------------------- * Extern declarations *----------------------------------------------------------------------------*/ extern struct redisServer server; extern struct sharedObjectsStruct shared; extern dictType setDictType; extern dictType zsetDictType; extern dictType dbDictType; extern dictType shaScriptObjectDictType; extern double R_Zero, R_PosInf, R_NegInf, R_Nan; extern dictType hashDictType; /*----------------------------------------------------------------------------- * Functions prototypes *----------------------------------------------------------------------------*/ /* Utils */ long long ustime(void); long long mstime(void); void getRandomHexChars(char *p, unsigned int len); uint64_t crc64(uint64_t crc, const unsigned char *s, uint64_t l); void exitFromChild(int retcode); /* networking.c -- Networking and Client related operations */ redisClient *createClient(int fd); void closeTimedoutClients(void); void freeClient(redisClient *c); void resetClient(redisClient *c); void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask); void addReply(redisClient *c, robj *obj); void *addDeferredMultiBulkLength(redisClient *c); void setDeferredMultiBulkLength(redisClient *c, void *node, long length); void addReplySds(redisClient *c, sds s); void processInputBuffer(redisClient *c); void acceptTcpHandler(aeEventLoop *el, int fd, void *privdata, int mask); void acceptUnixHandler(aeEventLoop *el, int fd, void *privdata, int mask); void readQueryFromClient(aeEventLoop *el, int fd, void *privdata, int mask); void addReplyBulk(redisClient *c, robj *obj); void addReplyBulkCString(redisClient *c, char *s); void addReplyBulkCBuffer(redisClient *c, void *p, size_t len); void addReplyBulkLongLong(redisClient *c, long long ll); void acceptHandler(aeEventLoop *el, int fd, void *privdata, int mask); void addReply(redisClient *c, robj *obj); void addReplySds(redisClient *c, sds s); void addReplyError(redisClient *c, char *err); void addReplyStatus(redisClient *c, char *status); void addReplyDouble(redisClient *c, double d); void addReplyLongLong(redisClient *c, long long ll); void addReplyMultiBulkLen(redisClient *c, long length); void copyClientOutputBuffer(redisClient *dst, redisClient *src); void *dupClientReplyValue(void *o); void getClientsMaxBuffers(unsigned long *longest_output_list, unsigned long *biggest_input_buffer); sds getClientInfoString(redisClient *client); sds getAllClientsInfoString(void); void rewriteClientCommandVector(redisClient *c, int argc, ...); void rewriteClientCommandArgument(redisClient *c, int i, robj *newval); unsigned long getClientOutputBufferMemoryUsage(redisClient *c); void freeClientsInAsyncFreeQueue(void); void asyncCloseClientOnOutputBufferLimitReached(redisClient *c); int getClientLimitClassByName(char *name); char *getClientLimitClassName(int class); void flushSlavesOutputBuffers(void); void disconnectSlaves(void); #ifdef __GNUC__ void addReplyErrorFormat(redisClient *c, const char *fmt, ...) __attribute__((format(printf, 2, 3))); void addReplyStatusFormat(redisClient *c, const char *fmt, ...) __attribute__((format(printf, 2, 3))); #else void addReplyErrorFormat(redisClient *c, const char *fmt, ...); void addReplyStatusFormat(redisClient *c, const char *fmt, ...); #endif /* List data type */ void listTypeTryConversion(robj *subject, robj *value); void listTypePush(robj *subject, robj *value, int where); robj *listTypePop(robj *subject, int where); unsigned long listTypeLength(robj *subject); listTypeIterator *listTypeInitIterator(robj *subject, long index, unsigned char direction); void listTypeReleaseIterator(listTypeIterator *li); int listTypeNext(listTypeIterator *li, listTypeEntry *entry); robj *listTypeGet(listTypeEntry *entry); void listTypeInsert(listTypeEntry *entry, robj *value, int where); int listTypeEqual(listTypeEntry *entry, robj *o); void listTypeDelete(listTypeEntry *entry); void listTypeConvert(robj *subject, int enc); void unblockClientWaitingData(redisClient *c); void handleClientsBlockedOnLists(void); void popGenericCommand(redisClient *c, int where); /* MULTI/EXEC/WATCH... */ void unwatchAllKeys(redisClient *c); void initClientMultiState(redisClient *c); void freeClientMultiState(redisClient *c); void queueMultiCommand(redisClient *c); void touchWatchedKey(redisDb *db, robj *key); void touchWatchedKeysOnFlush(int dbid); void discardTransaction(redisClient *c); void flagTransaction(redisClient *c); /* Redis object implementation */ void decrRefCount(void *o); void incrRefCount(robj *o); robj *resetRefCount(robj *obj); void freeStringObject(robj *o); void freeListObject(robj *o); void freeSetObject(robj *o); void freeZsetObject(robj *o); void freeHashObject(robj *o); robj *createObject(int type, void *ptr); robj *createStringObject(char *ptr, size_t len); robj *dupStringObject(robj *o); int isObjectRepresentableAsLongLong(robj *o, long long *llongval); robj *tryObjectEncoding(robj *o); robj *getDecodedObject(robj *o); size_t stringObjectLen(robj *o); robj *createStringObjectFromLongLong(long long value); robj *createStringObjectFromLongDouble(long double value); robj *createListObject(void); robj *createZiplistObject(void); robj *createSetObject(void); robj *createIntsetObject(void); robj *createHashObject(void); robj *createZsetObject(void); robj *createZsetZiplistObject(void); int getLongFromObjectOrReply(redisClient *c, robj *o, long *target, const char *msg); int checkType(redisClient *c, robj *o, int type); int getLongLongFromObjectOrReply(redisClient *c, robj *o, long long *target, const char *msg); int getDoubleFromObjectOrReply(redisClient *c, robj *o, double *target, const char *msg); int getLongLongFromObject(robj *o, long long *target); int getLongDoubleFromObject(robj *o, long double *target); int getLongDoubleFromObjectOrReply(redisClient *c, robj *o, long double *target, const char *msg); char *strEncoding(int encoding); int compareStringObjects(robj *a, robj *b); int equalStringObjects(robj *a, robj *b); unsigned long estimateObjectIdleTime(robj *o); /* Synchronous I/O with timeout */ ssize_t syncWrite(int fd, char *ptr, ssize_t size, long long timeout); ssize_t syncRead(int fd, char *ptr, ssize_t size, long long timeout); ssize_t syncReadLine(int fd, char *ptr, ssize_t size, long long timeout); /* Replication */ void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc); void replicationFeedMonitors(redisClient *c, list *monitors, int dictid, robj **argv, int argc); void updateSlavesWaitingBgsave(int bgsaveerr); void replicationCron(void); /* Generic persistence functions */ void startLoading(FILE *fp); void loadingProgress(off_t pos); void stopLoading(void); /* RDB persistence */ #include "rdb.h" /* AOF persistence */ void flushAppendOnlyFile(int force); void feedAppendOnlyFile(struct redisCommand *cmd, int dictid, robj **argv, int argc); void aofRemoveTempFile(pid_t childpid); int rewriteAppendOnlyFileBackground(void); int loadAppendOnlyFile(char *filename); void stopAppendOnly(void); int startAppendOnly(void); void backgroundRewriteDoneHandler(int exitcode, int bysignal); void aofRewriteBufferReset(void); unsigned long aofRewriteBufferSize(void); /* Sorted sets data type */ /* Struct to hold a inclusive/exclusive range spec. */ typedef struct { double min, max; int minex, maxex; /* are min or max exclusive? */ } zrangespec; zskiplist *zslCreate(void); void zslFree(zskiplist *zsl); zskiplistNode *zslInsert(zskiplist *zsl, double score, robj *obj); unsigned char *zzlInsert(unsigned char *zl, robj *ele, double score); int zslDelete(zskiplist *zsl, double score, robj *obj); zskiplistNode *zslFirstInRange(zskiplist *zsl, zrangespec range); double zzlGetScore(unsigned char *sptr); void zzlNext(unsigned char *zl, unsigned char **eptr, unsigned char **sptr); void zzlPrev(unsigned char *zl, unsigned char **eptr, unsigned char **sptr); unsigned int zsetLength(robj *zobj); void zsetConvert(robj *zobj, int encoding); /* Core functions */ int freeMemoryIfNeeded(void); int processCommand(redisClient *c); void setupSignalHandlers(void); struct redisCommand *lookupCommand(sds name); struct redisCommand *lookupCommandByCString(char *s); struct redisCommand *lookupCommandOrOriginal(sds name); void call(redisClient *c, int flags); void propagate(struct redisCommand *cmd, int dbid, robj **argv, int argc, int flags); void alsoPropagate(struct redisCommand *cmd, int dbid, robj **argv, int argc, int target); int prepareForShutdown(); void redisLog(int level, const char *fmt, ...); void redisLogRaw(int level, const char *msg); void redisLogFromHandler(int level, const char *msg); void usage(); void updateDictResizePolicy(void); int htNeedsResize(dict *dict); void oom(const char *msg); void populateCommandTable(void); void resetCommandTableStats(void); /* Set data type */ robj *setTypeCreate(robj *value); int setTypeAdd(robj *subject, robj *value); int setTypeRemove(robj *subject, robj *value); int setTypeIsMember(robj *subject, robj *value); setTypeIterator *setTypeInitIterator(robj *subject); void setTypeReleaseIterator(setTypeIterator *si); int setTypeNext(setTypeIterator *si, robj **objele, int64_t *llele); robj *setTypeNextObject(setTypeIterator *si); int setTypeRandomElement(robj *setobj, robj **objele, int64_t *llele); unsigned long setTypeSize(robj *subject); void setTypeConvert(robj *subject, int enc); /* Hash data type */ void hashTypeConvert(robj *o, int enc); void hashTypeTryConversion(robj *subject, robj **argv, int start, int end); void hashTypeTryObjectEncoding(robj *subject, robj **o1, robj **o2); robj *hashTypeGetObject(robj *o, robj *key); int hashTypeExists(robj *o, robj *key); int hashTypeSet(robj *o, robj *key, robj *value); int hashTypeDelete(robj *o, robj *key); unsigned long hashTypeLength(robj *o); hashTypeIterator *hashTypeInitIterator(robj *subject); void hashTypeReleaseIterator(hashTypeIterator *hi); int hashTypeNext(hashTypeIterator *hi); void hashTypeCurrentFromZiplist(hashTypeIterator *hi, int what, unsigned char **vstr, unsigned int *vlen, long long *vll); void hashTypeCurrentFromHashTable(hashTypeIterator *hi, int what, robj **dst); robj *hashTypeCurrentObject(hashTypeIterator *hi, int what); robj *hashTypeLookupWriteOrCreate(redisClient *c, robj *key); /* Pub / Sub */ int pubsubUnsubscribeAllChannels(redisClient *c, int notify); int pubsubUnsubscribeAllPatterns(redisClient *c, int notify); void freePubsubPattern(void *p); int listMatchPubsubPattern(void *a, void *b); int pubsubPublishMessage(robj *channel, robj *message); /* Configuration */ void loadServerConfig(char *filename, char *options); void appendServerSaveParams(time_t seconds, int changes); void resetServerSaveParams(); /* db.c -- Keyspace access API */ int removeExpire(redisDb *db, robj *key); void propagateExpire(redisDb *db, robj *key); int expireIfNeeded(redisDb *db, robj *key); long long getExpire(redisDb *db, robj *key); void setExpire(redisDb *db, robj *key, long long when); robj *lookupKey(redisDb *db, robj *key); robj *lookupKeyRead(redisDb *db, robj *key); robj *lookupKeyWrite(redisDb *db, robj *key); robj *lookupKeyReadOrReply(redisClient *c, robj *key, robj *reply); robj *lookupKeyWriteOrReply(redisClient *c, robj *key, robj *reply); void dbAdd(redisDb *db, robj *key, robj *val); void dbOverwrite(redisDb *db, robj *key, robj *val); void setKey(redisDb *db, robj *key, robj *val); int dbExists(redisDb *db, robj *key); robj *dbRandomKey(redisDb *db); int dbDelete(redisDb *db, robj *key); long long emptyDb(); int selectDb(redisClient *c, int id); void signalModifiedKey(redisDb *db, robj *key); void signalFlushedDb(int dbid); unsigned int GetKeysInSlot(unsigned int hashslot, robj **keys, unsigned int count); /* API to get key arguments from commands */ #define REDIS_GETKEYS_ALL 0 #define REDIS_GETKEYS_PRELOAD 1 int *getKeysFromCommand(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags); void getKeysFreeResult(int *result); int *noPreloadGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags); int *renameGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags); int *zunionInterGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags); /* Sentinel */ void initSentinelConfig(void); void initSentinel(void); void sentinelTimer(void); char *sentinelHandleConfiguration(char **argv, int argc); /* Scripting */ void scriptingInit(void); /* Git SHA1 */ char *redisGitSHA1(void); char *redisGitDirty(void); /* Commands prototypes */ void authCommand(redisClient *c); void pingCommand(redisClient *c); void echoCommand(redisClient *c); void setCommand(redisClient *c); void setnxCommand(redisClient *c); void setexCommand(redisClient *c); void psetexCommand(redisClient *c); void getCommand(redisClient *c); void delCommand(redisClient *c); void existsCommand(redisClient *c); void setbitCommand(redisClient *c); void getbitCommand(redisClient *c); void setrangeCommand(redisClient *c); void getrangeCommand(redisClient *c); void incrCommand(redisClient *c); void decrCommand(redisClient *c); void incrbyCommand(redisClient *c); void decrbyCommand(redisClient *c); void incrbyfloatCommand(redisClient *c); void selectCommand(redisClient *c); void randomkeyCommand(redisClient *c); void keysCommand(redisClient *c); void dbsizeCommand(redisClient *c); void lastsaveCommand(redisClient *c); void saveCommand(redisClient *c); void bgsaveCommand(redisClient *c); void bgrewriteaofCommand(redisClient *c); void shutdownCommand(redisClient *c); void moveCommand(redisClient *c); void renameCommand(redisClient *c); void renamenxCommand(redisClient *c); void lpushCommand(redisClient *c); void rpushCommand(redisClient *c); void lpushxCommand(redisClient *c); void rpushxCommand(redisClient *c); void linsertCommand(redisClient *c); void lpopCommand(redisClient *c); void rpopCommand(redisClient *c); void llenCommand(redisClient *c); void lindexCommand(redisClient *c); void lrangeCommand(redisClient *c); void ltrimCommand(redisClient *c); void typeCommand(redisClient *c); void lsetCommand(redisClient *c); void saddCommand(redisClient *c); void sremCommand(redisClient *c); void smoveCommand(redisClient *c); void sismemberCommand(redisClient *c); void scardCommand(redisClient *c); void spopCommand(redisClient *c); void srandmemberCommand(redisClient *c); void sinterCommand(redisClient *c); void sinterstoreCommand(redisClient *c); void sunionCommand(redisClient *c); void sunionstoreCommand(redisClient *c); void sdiffCommand(redisClient *c); void sdiffstoreCommand(redisClient *c); void syncCommand(redisClient *c); void flushdbCommand(redisClient *c); void flushallCommand(redisClient *c); void sortCommand(redisClient *c); void lremCommand(redisClient *c); void rpoplpushCommand(redisClient *c); void infoCommand(redisClient *c); void mgetCommand(redisClient *c); void monitorCommand(redisClient *c); void expireCommand(redisClient *c); void expireatCommand(redisClient *c); void pexpireCommand(redisClient *c); void pexpireatCommand(redisClient *c); void getsetCommand(redisClient *c); void ttlCommand(redisClient *c); void pttlCommand(redisClient *c); void persistCommand(redisClient *c); void slaveofCommand(redisClient *c); void debugCommand(redisClient *c); void msetCommand(redisClient *c); void msetnxCommand(redisClient *c); void zaddCommand(redisClient *c); void zincrbyCommand(redisClient *c); void zrangeCommand(redisClient *c); void zrangebyscoreCommand(redisClient *c); void zrevrangebyscoreCommand(redisClient *c); void zcountCommand(redisClient *c); void zrevrangeCommand(redisClient *c); void zcardCommand(redisClient *c); void zremCommand(redisClient *c); void zscoreCommand(redisClient *c); void zremrangebyscoreCommand(redisClient *c); void multiCommand(redisClient *c); void execCommand(redisClient *c); void discardCommand(redisClient *c); void blpopCommand(redisClient *c); void brpopCommand(redisClient *c); void brpoplpushCommand(redisClient *c); void appendCommand(redisClient *c); void strlenCommand(redisClient *c); void zrankCommand(redisClient *c); void zrevrankCommand(redisClient *c); void hsetCommand(redisClient *c); void hsetnxCommand(redisClient *c); void hgetCommand(redisClient *c); void hmsetCommand(redisClient *c); void hmgetCommand(redisClient *c); void hdelCommand(redisClient *c); void hlenCommand(redisClient *c); void zremrangebyrankCommand(redisClient *c); void zunionstoreCommand(redisClient *c); void zinterstoreCommand(redisClient *c); void hkeysCommand(redisClient *c); void hvalsCommand(redisClient *c); void hgetallCommand(redisClient *c); void hexistsCommand(redisClient *c); void configCommand(redisClient *c); void hincrbyCommand(redisClient *c); void hincrbyfloatCommand(redisClient *c); void subscribeCommand(redisClient *c); void unsubscribeCommand(redisClient *c); void psubscribeCommand(redisClient *c); void punsubscribeCommand(redisClient *c); void publishCommand(redisClient *c); void watchCommand(redisClient *c); void unwatchCommand(redisClient *c); void restoreCommand(redisClient *c); void migrateCommand(redisClient *c); void dumpCommand(redisClient *c); void objectCommand(redisClient *c); void clientCommand(redisClient *c); void evalCommand(redisClient *c); void evalShaCommand(redisClient *c); void scriptCommand(redisClient *c); void timeCommand(redisClient *c); void bitopCommand(redisClient *c); void bitcountCommand(redisClient *c); void replconfCommand(redisClient *c); #if defined(__GNUC__) void *calloc(size_t count, size_t size) __attribute__ ((deprecated)); void free(void *ptr) __attribute__ ((deprecated)); void *malloc(size_t size) __attribute__ ((deprecated)); void *realloc(void *ptr, size_t size) __attribute__ ((deprecated)); #endif /* Debugging stuff */ void _redisAssertWithInfo(redisClient *c, robj *o, char *estr, char *file, int line); void _redisAssert(char *estr, char *file, int line); void _redisPanic(char *msg, char *file, int line); void bugReportStart(void); void redisLogObjectDebugInfo(robj *o); void sigsegvHandler(int sig, siginfo_t *info, void *secret); sds genRedisInfoString(char *section); void enableWatchdog(int period); void disableWatchdog(void); void watchdogScheduleSignal(int period); void redisLogHexDump(int level, char *descr, void *value, size_t len); #define redisDebug(fmt, ...) \ printf("DEBUG %s:%d > " fmt "\n", __FILE__, __LINE__, __VA_ARGS__) #define redisDebugMark() \ printf("-- MARK %s:%d --\n", __FILE__, __LINE__) #endif redis-2.6.16/src/redisassert.h000066400000000000000000000043421220734223100162030ustar00rootroot00000000000000/* redisassert.h -- Drop in replacemnet assert.h that prints the stack trace * in the Redis logs. * * This file should be included instead of "assert.h" inside libraries used by * Redis that are using assertions, so instead of Redis disappearing with * SIGABORT, we get the details and stack trace inside the log file. * * ---------------------------------------------------------------------------- * * Copyright (c) 2006-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __REDIS_ASSERT_H__ #define __REDIS_ASSERT_H__ #include /* for _exit() */ #define assert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1))) void _redisAssert(char *estr, char *file, int line); #endif redis-2.6.16/src/release.c000066400000000000000000000036071220734223100152710ustar00rootroot00000000000000/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* Every time the Redis Git SHA1 or Dirty status changes only this small * file is recompiled, as we access this information in all the other * files using this functions. */ #include "release.h" char *redisGitSHA1(void) { return REDIS_GIT_SHA1; } char *redisGitDirty(void) { return REDIS_GIT_DIRTY; } redis-2.6.16/src/replication.c000066400000000000000000000761571220734223100161740ustar00rootroot00000000000000/* Asynchronous replication implementation. * * Copyright (c) 2009-2012, Salvatore Sanfilippo * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Redis nor the names of its contributors may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "redis.h" #include #include #include #include #include /* ---------------------------------- MASTER -------------------------------- */ void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc) { listNode *ln; listIter li; int j; listRewind(slaves,&li); while((ln = listNext(&li))) { redisClient *slave = ln->value; /* Don't feed slaves that are still waiting for BGSAVE to start */ if (slave->replstate == REDIS_REPL_WAIT_BGSAVE_START) continue; /* Feed slaves that are waiting for the initial SYNC (so these commands * are queued in the output buffer until the initial SYNC completes), * or are already in sync with the master. */ if (slave->slaveseldb != dictid) { robj *selectcmd; if (dictid >= 0 && dictid < REDIS_SHARED_SELECT_CMDS) { selectcmd = shared.select[dictid]; incrRefCount(selectcmd); } else { selectcmd = createObject(REDIS_STRING, sdscatprintf(sdsempty(),"select %d\r\n",dictid)); } addReply(slave,selectcmd); decrRefCount(selectcmd); slave->slaveseldb = dictid; } addReplyMultiBulkLen(slave,argc); for (j = 0; j < argc; j++) addReplyBulk(slave,argv[j]); } } void replicationFeedMonitors(redisClient *c, list *monitors, int dictid, robj **argv, int argc) { listNode *ln; listIter li; int j, port; sds cmdrepr = sdsnew("+"); robj *cmdobj; char ip[32]; struct timeval tv; gettimeofday(&tv,NULL); cmdrepr = sdscatprintf(cmdrepr,"%ld.%06ld ",(long)tv.tv_sec,(long)tv.tv_usec); if (c->flags & REDIS_LUA_CLIENT) { cmdrepr = sdscatprintf(cmdrepr,"[%d lua] ",dictid); } else if (c->flags & REDIS_UNIX_SOCKET) { cmdrepr = sdscatprintf(cmdrepr,"[%d unix:%s] ",dictid,server.unixsocket); } else { anetPeerToString(c->fd,ip,&port); cmdrepr = sdscatprintf(cmdrepr,"[%d %s:%d] ",dictid,ip,port); } for (j = 0; j < argc; j++) { if (argv[j]->encoding == REDIS_ENCODING_INT) { cmdrepr = sdscatprintf(cmdrepr, "\"%ld\"", (long)argv[j]->ptr); } else { cmdrepr = sdscatrepr(cmdrepr,(char*)argv[j]->ptr, sdslen(argv[j]->ptr)); } if (j != argc-1) cmdrepr = sdscatlen(cmdrepr," ",1); } cmdrepr = sdscatlen(cmdrepr,"\r\n",2); cmdobj = createObject(REDIS_STRING,cmdrepr); listRewind(monitors,&li); while((ln = listNext(&li))) { redisClient *monitor = ln->value; addReply(monitor,cmdobj); } decrRefCount(cmdobj); } void syncCommand(redisClient *c) { /* ignore SYNC if already slave or in monitor mode */ if (c->flags & REDIS_SLAVE) return; /* Refuse SYNC requests if we are a slave but the link with our master * is not ok... */ if (server.masterhost && server.repl_state != REDIS_REPL_CONNECTED) { addReplyError(c,"Can't SYNC while not connected with my master"); return; } /* SYNC can't be issued when the server has pending data to send to * the client about already issued commands. We need a fresh reply * buffer registering the differences between the BGSAVE and the current * dataset, so that we can copy to other slaves if needed. */ if (listLength(c->reply) != 0) { addReplyError(c,"SYNC is invalid with pending input"); return; } redisLog(REDIS_NOTICE,"Slave ask for synchronization"); /* Here we need to check if there is a background saving operation * in progress, or if it is required to start one */ if (server.rdb_child_pid != -1) { /* Ok a background save is in progress. Let's check if it is a good * one for replication, i.e. if there is another slave that is * registering differences since the server forked to save */ redisClient *slave; listNode *ln; listIter li; listRewind(server.slaves,&li); while((ln = listNext(&li))) { slave = ln->value; if (slave->replstate == REDIS_REPL_WAIT_BGSAVE_END) break; } if (ln) { /* Perfect, the server is already registering differences for * another slave. Set the right state, and copy the buffer. */ copyClientOutputBuffer(c,slave); c->replstate = REDIS_REPL_WAIT_BGSAVE_END; redisLog(REDIS_NOTICE,"Waiting for end of BGSAVE for SYNC"); } else { /* No way, we need to wait for the next BGSAVE in order to * register differences */ c->replstate = REDIS_REPL_WAIT_BGSAVE_START; redisLog(REDIS_NOTICE,"Waiting for next BGSAVE for SYNC"); } } else { /* Ok we don't have a BGSAVE in progress, let's start one */ redisLog(REDIS_NOTICE,"Starting BGSAVE for SYNC"); if (rdbSaveBackground(server.rdb_filename) != REDIS_OK) { redisLog(REDIS_NOTICE,"Replication failed, can't BGSAVE"); addReplyError(c,"Unable to perform background save"); return; } c->replstate = REDIS_REPL_WAIT_BGSAVE_END; } if (server.repl_disable_tcp_nodelay) anetDisableTcpNoDelay(NULL, c->fd); /* Non critical if it fails. */ c->repldbfd = -1; c->flags |= REDIS_SLAVE; c->slaveseldb = 0; listAddNodeTail(server.slaves,c); return; } /* REPLCONF