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History for src/mutex_unix.c

2020-06-19
11:34
[dd2b3f1c] part of check-in [7bb08b1b] Refactoring various names. No changes in the resulting machine code. (check-in: [7bb08b1b] user: drh branch: trunk, size: 12648)
2019-02-08
20:55
[38abc2b7] part of check-in [df66fec9] Use a fast compiler-provided memory barrier exclusively, if such a memory barrier is available. (check-in: [df66fec9] user: drh branch: faster-memory-barrier, size: 12694)
2018-02-17
07:38
[aaf9ebc3] part of check-in [f53b8a57] Fix a data race causing a tsan complaint with SQLITE_ENABLE_API_ARMOR builds on unix. The race condition is not dangerous in practice, it just upsets tsan. (check-in: [f53b8a57] user: dan branch: trunk, size: 12650)
2017-08-27
10:55
[78d1d635] part of check-in [c93298d5] Instrumentation and changes in an effort to reduce thread contention. (check-in: [c93298d5] user: drh branch: reduced-thread-contention, size: 12703)
2017-02-14
23:58
[68ced9b5] part of check-in [80481754] Experimental enhancements to mutex debugging. (check-in: [80481754] user: mistachkin branch: mutexDbg2, size: 13003)
2016-08-04
14:08
[543aab0a] part of check-in [491f1ef3] Add extra logging calls to this branch. (check-in: [491f1ef3] user: dan branch: debug, size: 11959)
2016-07-30
03:33
[5cbf63bc] part of check-in [92b9fead] A new version of the slow mutex log that uses gettimeofday() instead of trying to access the hardware timer. (check-in: [92b9fead] user: drh branch: debug, size: 12169)
2016-07-29
14:31
[3a24b5f2] part of check-in [e60cb6d8] Enhance a debugging log message to better identify a mutex. (check-in: [e60cb6d8] user: dan branch: debug, size: 12031)
14:10
[9af77da8] part of check-in [33c7ef7a] Add calls to sqlite3_log() when sqlite3_mutex_enter() takes more than 100,000 CPU cycles. (check-in: [33c7ef7a] user: drh branch: debug, size: 11839)
2015-12-23
16:42
[27bb6cc4] part of check-in [5d44d4a6] Fix some harmless gcc compiler warnings. Mostly in fts5, but also two in the core code. (check-in: [5d44d4a6] user: dan branch: trunk, size: 12373)
2015-11-21
17:27
[fc54f25b] part of check-in [198d191b] Fix over-length source code lines. No logic changes. (check-in: [198d191b] user: drh branch: trunk, size: 12267)
2015-10-15
21:12
[77d84839] part of check-in [a447cf90] Merge updates from trunk. (check-in: [a447cf90] user: mistachkin branch: mutexInitSimpleCmpSwap, size: 13191)
2015-09-26
03:23
[a94b46f3] part of check-in [b89495ae] Expand the header comment to clarify the purpose for the sqlite3MemoryBarrier() function. (check-in: [b89495ae] user: drh branch: trunk, size: 12273)
2015-09-12
18:57
[8cfa6e83] part of check-in [334720c0] Import common changes from the mutex initialization branch. (check-in: [334720c0] user: mistachkin branch: trunk, size: 12164)
2015-09-11
05:06
[a72043f2] part of check-in [f6a8f577] Enhance mutex initialization to prevent possible race conditions between sqlite3_initialize() and sqlite3_config(). Also, re-check sqlite3GlobalConfig.isInit after the mutex subsystem has been initialized. (check-in: [f6a8f577] user: mistachkin branch: mutexInitCmpSwap, size: 13082)
2015-09-06
10:31
[7762c8ec] part of check-in [47dc24bd] Improved memory barrier that should work with MinGW on older versions of Windows. (check-in: [47dc24bd] user: drh branch: trunk, size: 12140)
02:51
[c3f415eb] part of check-in [11a9a786] Add a memory barrier to the mutex initialization logic, try to work around an issue reported by WebKit. (check-in: [11a9a786] user: drh branch: trunk, size: 12139)
2015-07-03
21:38
[b0d28008] part of check-in [b202e2a1] Add static mutexes for use by the built-in / third-party VFSs and use the built-in VFS mutex where appropriate. (check-in: [b202e2a1] user: mistachkin branch: trunk, size: 11905)
2015-02-13
16:36
[5cf67646] part of check-in [823ad40c] Improvements to SQLITE_ENABLE_API_ARMOR. (check-in: [823ad40c] user: drh branch: trunk, size: 11710)
2014-10-24
00:35
[551e2f25] part of check-in [c297a84b] Add the SQLITE_ENABLE_API_ARMOR compile-time option. This is a work in progress and is not yet completely functional. (check-in: [c297a84b] user: drh branch: api-armor, size: 11587)
2014-08-15
22:37
[837e3d96] part of check-in [c8ade949] Aborted merge. (check-in: [c8ade949] user: numist branch: obsolete, size: 11389)
2014-05-09
11:15
[1b10d541] part of check-in [ee0ab09c] Add new static mutex SQLITE_MUTEX_STATIC_APP3. (check-in: [ee0ab09c] user: dan branch: threads, size: 11511)
2014-05-03
12:00
[56e22c1b] part of check-in [13686035] Add two new static mutexes, SQLITE_MUTEX_STATIC_APP1 and _APP2, for use by the application program. First intended use is in test programs for the memory allocation logic where one does not want to allocating a _FAST or _RECURSIVE mutex since that would involve using the memory allocation system under test. (check-in: [13686035] user: drh branch: threads, size: 11446)
2012-01-04
12:57
[c3a4e00f] part of check-in [e9d05cbb] Fix typos and comments and make minor changes to a few function names, as suggested by readership. (check-in: [e9d05cbb] user: drh branch: trunk, size: 11316)
2011-01-26
07:25
[b4f4e923] part of check-in [456bd5c6] Update mutex1.test so that it works with the memsubsys1 permutation (pagecache memory). Change a few instances of SQLITE_MUTEX_STATIC_LRU2 in comments and test code to STATIC_PMEM. (check-in: [456bd5c6] user: dan branch: trunk, size: 11315)
2010-08-10
07:12
[abb8c98a] part of check-in [e82e32bd] Changes to debugging code in mutex_unix.c and mutex_w32.c to make an assert() statement threadsafe. (check-in: [e82e32bd] user: dan branch: trunk, size: 11315)
2010-06-02
05:53
[cf84466b] part of check-in [e7073e23] Add some 'const' markers to static data that is really constant. (check-in: [e7073e23] user: dan branch: trunk, size: 11244)
2010-05-13
20:19
[becb8c4e] part of check-in [e823c60c] Make debugging elements of the sqlite3_mutex object volatile and make them only appear when compiling with SQLITE_DEBUG. Ticket [51914f6acd2cb462]. (check-in: [e823c60c] user: drh branch: trunk, size: 11232)
2009-11-10
01:30
[04a25238] part of check-in [f6c045f6] Remove the obsolete "$Id:$" RCS identifier strings from the source code. (check-in: [f6c045f6] user: drh branch: trunk, size: 10702)
2009-08-17
15:31
[aff26c77] part of check-in [32509bc7] More documentation and comment updates for sqlite3_initialize/shutdown interface changes to handle failures. (check-in: [32509bc7] user: shane branch: trunk, size: 10763)
2008-12-08
18:19
[2f936339] part of check-in [73c7302c] The amalgamation now compiles cleanly on GCC with options -pedantic-errors -Wno-long-long. (CVS 5991) (check-in: [73c7302c] user: drh branch: trunk, size: 10731)
2008-11-17
19:18
[3b1c895a] part of check-in [8009220c] Modifications to avoid unsigned/signed comparisons in various files. (CVS 5914) (check-in: [8009220c] user: danielk1977 branch: trunk, size: 10720)
08:05
[0c256ff1] part of check-in [f45a1493] Added support for vxworks >= 6.4; RTP mode tested, kernel mode untested. (CVS 5910) (check-in: [f45a1493] user: chw branch: trunk, size: 10734)
2008-07-16
12:33
[29049a61] part of check-in [9af2514c] Fix a bug in the HOMEGROWN_RECURSIVE_MUTEX implementation for unix. Ticket #3224. (CVS 5420) (check-in: [9af2514c] user: drh branch: trunk, size: 10703)
2008-06-19
16:07
[c1526811] part of check-in [7d38da3e] Fix some minor compile problems. (CVS 5248) (check-in: [7d38da3e] user: drh branch: trunk, size: 10700)
08:51
[630a3860] part of check-in [9cd7f866] Shuffle some of the mutex related documentation in sqlite.h.in to match the new sqlite3_mutex_methods based API. (CVS 5244) (check-in: [9cd7f866] user: danielk1977 branch: trunk, size: 10682)
2008-06-18
09:45
[469a35c1] part of check-in [262baee9] Add some test infrastructure and cases for the new mutex api. (CVS 5230) (check-in: [262baee9] user: danielk1977 branch: trunk, size: 10682)
2008-06-17
17:21
[74a67559] part of check-in [59728363] Change the mutex interface to be pluggable. This is an incremental checkin, there are still changes to come. (CVS 5227) (check-in: [59728363] user: danielk1977 branch: trunk, size: 10683)
2008-06-13
18:24
[28588d08] part of check-in [a03c5af1] Progress toward implementation of sqlite3_config() and a rework of the mutex and memory allocation subsystems. This is an incremental check-in. (CVS 5218) (check-in: [a03c5af1] user: drh branch: trunk, size: 10424)
2008-03-29
12:47
[466d2037] part of check-in [d6a34d98] eliminate compile-time warnings related to missing field initializations (CVS 4936) (check-in: [d6a34d98] user: rse branch: trunk, size: 10230)
2008-03-26
18:34
[c5427552] part of check-in [8c2f6952] Changes to delay freeing buffers associated with vdbe memory cells until either sqlite3_finalize() or sqlite3_release_memory() is called. (CVS 4922) (check-in: [8c2f6952] user: danielk1977 branch: trunk, size: 10065)
2007-11-28
14:04
[a6e11194] part of check-in [542e11f9] Reorganize the code for the homegrown recursive mutexes. Fix a place in the previous check-in where the #ifdef label was incorrect. Ticket #2804. (CVS 4576) (check-in: [542e11f9] user: drh branch: trunk, size: 10021)
13:55
[94da6981] part of check-in [80299eeb] Clarify the conditions under which homegrown recursive mutexes work (they require a coherent cache) and only enable them if there is an explicit #define so as to avoid accidental use on platforms that do not meet the constraints. Ticket #2805. (CVS 4575) (check-in: [80299eeb] user: drh branch: trunk, size: 10015)
00:51
[69e996b7] part of check-in [f366a776] Add an implementation of recursive mutexes for unix systems that lack pthreads recursive mutexes (ex: Solaris 2.6). Modern unix systems continue to use the recursive mutexes provided by pthreads. (CVS 4573) (check-in: [f366a776] user: drh branch: trunk, size: 9549)
2007-08-28
22:24
[ff776502] part of check-in [967ab229] Clean up the locking in the btree logic. (CVS 4316) (check-in: [967ab229] user: drh branch: trunk, size: 7624)
16:34
[84ae0344] part of check-in [fc5cd71a] Break up the mutex implementation into separate source files, one each for unix, w32, and os2. (CVS 4312) (check-in: [fc5cd71a] user: drh branch: trunk, size: 7171) Added