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19,138 Commits 1,607 Branches 185 Tags
98b677f2cb15b1dff79920237b9961d7b5c05a5a
Commit Graph

103 Commits

Author SHA1 Message Date
drh
f759bb83d4 Further updates to the sqlite3_pcache_methods documentation, plus the addition 
of a few evidence marks related to pcache.

FossilOrigin-Name: 34edb54bb03ad4e54f2e4de12d767e6fa8822ba4
 2010-09-09 18:25:34 +00:00
dan
026e598d0f Store the MemPage structure in memory following, instead of preceding, the page data for cached pages. This reduces the likelihood of a corrupt database page image causing SQLite to read past the end of a buffer. 
FossilOrigin-Name: 0ce42e76654d9ba52dac74c940d38b17866016ba
 2010-06-10 06:53:26 +00:00
drh
f3609eeba7 Put an ALWAYS() around a condition in pcache.c that must always be true in 
the current implementation.

FossilOrigin-Name: 88810cd091b33f2c56f842e32cafbac5d34d7412
 2010-03-19 19:23:51 +00:00
drh
2ec050c5b1 When TEMP files are in memory, also put the massive TEMP file used by 
the VACUUM command in memory.

FossilOrigin-Name: 9daf4e7d07769f25b3a579d80e7fada4e52344b1
 2010-03-02 23:34:54 +00:00
drh
a963896796 Fix a performance glitch that appears for large transactions. 
FossilOrigin-Name: 26cb1df73504d5d883cf0967e57b46aa062d0b00
 2010-02-04 17:38:31 +00:00
drh
c81c11f62c Remove the obsolete "$Id:$" RCS identifier strings from the source code. 
FossilOrigin-Name: f6c045f649036958078cb15cd9d5453680c82b0c
 2009-11-10 01:30:52 +00:00
danielk1977
750e87df2e Add files that should have gone in with the previous checkin. (CVS 6935) 
FossilOrigin-Name: 64c7afc704e95e13fb3315be402525d277a0d8d8
 2009-07-25 11:46:48 +00:00
danielk1977
89bc4bc645 Change getAndInitPage() (btree.c) to use only PagerAcquire(), not PagerLookup() and PagerAcquire(). (CVS 6916) 
FossilOrigin-Name: 0b41dfc066b60ccabbf1a9ab4db41ebcb73a2799
 2009-07-21 19:25:24 +00:00
drh
e64ca7ba11 Code simplifications and comment improvements in support of structural 
coverage testing. (CVS 6899)

FossilOrigin-Name: 945251798144110787b197f9eb552a2dd4a25cb4
 2009-07-16 18:21:17 +00:00
drh
8711c7d62e Remove two unused lines from pcache.c. (CVS 6415) 
FossilOrigin-Name: d5cab05c9ecbc5cb5e9ed658a55c35434717e969
 2009-03-31 01:32:18 +00:00
danielk1977
e1fd508a28 Optimization: When loading a new page into the cache, avoid redundant memset() calls to zero it. (CVS 6201) 
FossilOrigin-Name: 9c0b9f881367871105965d4268e2f2cde7f4d884
 2009-01-23 16:45:00 +00:00
danielk1977
bea2a94850 Big change to make pager.c easier to follow. Unused variables removed, comments improved, etc. (CVS 6197) 
FossilOrigin-Name: 12f7346c13c180ed73d7a2e3b590be457360254a
 2009-01-20 17:06:27 +00:00
danielk1977
45d6882fd9 Revert (6187). (CVS 6188) 
FossilOrigin-Name: a353c1ab376b159c4d12532412365318cdbdcc60
 2009-01-16 16:23:38 +00:00
danielk1977
443c0597fe This commit is an error. Reverted by (6188). (CVS 6187) 
FossilOrigin-Name: aa67fd0cdb4f53a0c6e15c001d37554d15006718
 2009-01-16 15:21:05 +00:00
drh
3d4501e573 Replace the VDBE Fifo object with the new RowSet object. (CVS 5977) 
FossilOrigin-Name: 39a0750b49cf55e9c0927169ca47db909f5c16ea
 2008-12-04 20:40:10 +00:00
danielk1977
f3d3c27a0c Fix some compiler warnings that show up when building the amalgamation only. (CVS 5927) 
FossilOrigin-Name: d1abe8a1c9a990b02c71d6c249436381c9fde443
 2008-11-19 16:52:44 +00:00
danielk1977
bc2ca9eb39 Add an API to support custom page cache implementations. (CVS 5899) 
FossilOrigin-Name: 47866d6708e9b69e367937fd85f93580fd025447
 2008-11-13 14:28:28 +00:00
danielk1977
95338ab70c Remove some asserts that refer to variables removed in (5830). (CVS 5884) 
FossilOrigin-Name: 9d880a6fd244fb73d0fce7e8180177c54d95cde2
 2008-11-11 18:43:00 +00:00
drh
4d01aeedbb When an assignment occurs in a boolean, always test the result using "!=0" 
to avoid confusion and make it clear that assignment is intended, not
an equality test.  Ticket #3491. (CVS 5879)

FossilOrigin-Name: 89ee5295bdea6f2c093eb6a44d69917dcc8459e3
 2008-11-11 00:36:16 +00:00
danielk1977
b3175389c7 Add "pragma journal_mode=memory". Change the way rollback works for in-memory databases so that it reuses the journal_mode=memory code. (CVS 5830) 
FossilOrigin-Name: 39ebf01addf9d0867daafd06a38719e725128f9c
 2008-10-17 18:51:52 +00:00
danielk1977
71d5d2cd49 Instead of storing a pointer to the parent page in the MemPage structure, have each B-Tree cursor keep track of the ancestry of the current page. (CVS 5747) 
FossilOrigin-Name: 40425e93421286cca1965d7a5769084526210c7a
 2008-09-29 11:49:47 +00:00
danielk1977
0afae93fa4 Fix some function declarations (change "int foo()" to "int foo(void)"). Ticket #3399. (CVS 5740) 
FossilOrigin-Name: 0fb98c35353d8c0a8d669bbe45fe84e3a5060621
 2008-09-24 09:12:46 +00:00
drh
0db8ac43b5 Give file scope to non-API routines in pcache. Ticket #3392. (CVS 5727) 
FossilOrigin-Name: 6521f98ac3a5cd2d959a9672cd07b1d25b82d559
 2008-09-21 15:14:04 +00:00
danielk1977
eaa06f6970 Avoid parsing the structure of b-tree pages (in sqlite3BtreeInitPage) more than is necessary. (CVS 5720) 
FossilOrigin-Name: 6b998f3066754e219c266501327e5578c9406b63
 2008-09-18 17:34:44 +00:00
drh
b3df2e1cfe Speed improvements for in-memory databases by omitting flag clearing on pages 
where it is impossible for the flag to be set and by avoiding assert()s on
non-debugging builds.  Ticket #3384. (CVS 5715)

FossilOrigin-Name: a7fd9e622bc1050e78f227ec42b6ba90c87c865a
 2008-09-17 20:06:26 +00:00
danielk1977
e598bb4639 Add a type identifier to argument sz to sqlite3PageMalloc() in pcache.c. Ticket #3383. (CVS 5713) 
FossilOrigin-Name: 94fde77b9a4efde5f7fb2a84fedaf38b0ebbac70
 2008-09-17 11:02:57 +00:00
drh
b5774cfa8f Adjust the page recycling algorithm so that the number of pages allocated 
to each connection does not exceed its cache_size limit. (CVS 5701)

FossilOrigin-Name: 3bc221b940565133ae8d95f59b3b120e57df0124
 2008-09-15 15:36:57 +00:00
danielk1977
5b775295f0 Modify pcache.c to work with OMIT_WSD. (CVS 5659) 
FossilOrigin-Name: 44def90d1bd4e37ab162e16f83e23d32e86b78ab
 2008-09-02 09:38:06 +00:00
danielk1977
075c23af26 Begin adding support for the SQLITE_OMIT_WSD macro. Some (many) WSD variables still need wrappers added to them. (CVS 5652) 
FossilOrigin-Name: 573d92abb9adb1c321ebc2fcadcf14374213b093
 2008-09-01 18:34:20 +00:00
danielk1977
062d4cb0ae If a page is made eligible for recycling when more than the configured maximum number of pages are allocated, free it immediately instead of adding it to the LRU list. (CVS 5638) 
FossilOrigin-Name: 4b12922dcb4547bf3a7276d0542b2e1d12ad338d
 2008-08-29 09:10:02 +00:00
drh
570f5c7d70 Partial fix for a bug in recovery from xStress failures in pcache. (CVS 5635) 
FossilOrigin-Name: 44193b92770062271711570d8532fa5af5f5da54
 2008-08-28 17:46:18 +00:00
danielk1977
29e2d6a5e6 Fix mutex related bug in pcache.c to do with handling IO errors. (CVS 5632) 
FossilOrigin-Name: 5e304fed275137f98be56f475504422d1f5113a4
 2008-08-28 11:12:09 +00:00
danielk1977
f599a1994c Enable the disabled asserts added by (5629). Add extra tests to thread003.test. And the required modifications to pcache.c. (CVS 5631) 
FossilOrigin-Name: 473c09fac22ed2f56ea86150a60b9f0f2263c889
 2008-08-28 10:21:16 +00:00
danielk1977
51d2d03636 Fix a threads/mutex problem in pcache.c. (CVS 5630) 
FossilOrigin-Name: 1928f15b78eee0fbf0a8ecdbbdd38dbbde2942b8
 2008-08-28 08:31:48 +00:00
drh
a85f7e36e8 Miscellaneous cleanup in the new pcache code. (CVS 5629) 
FossilOrigin-Name: da1777259f53c2e20c7ced06bf6f2a550f0ea0fc
 2008-08-28 02:26:07 +00:00
danielk1977
468c82bc50 Modifications to malloc5.test to account for the fact that sqlite3_release_memory() no longer reclaims dirty pages. (CVS 5625) 
FossilOrigin-Name: b01c65b065c62e3dd71e88866a953668b5e2f25f
 2008-08-27 16:38:56 +00:00
danielk1977
a1fa00d95f Use a bitvec object to store the set of pages with the 'always-rollback' property for a transaction. (CVS 5622) 
FossilOrigin-Name: 9e9325997e11a0368721ed7860f4c37de3502a9b
 2008-08-27 15:16:33 +00:00
danielk1977
4abdfa45db Remove unreachable branches from pcache.c. (CVS 5620) 
FossilOrigin-Name: 7de32498b349e046c5c886de255bbdefd6a7e8f7
 2008-08-27 09:44:39 +00:00
danielk1977
29f55ae1e4 Disable some very expensive asserts in pcache.c that are too slow for all.test. (CVS 5616) 
FossilOrigin-Name: 555dad900fad874099556d44c464ea9f64687ca0
 2008-08-26 19:07:59 +00:00
danielk1977
d491e1bfd1 Simplify the pcache module by only recycling clean pages from 'other' caches. This commit causes errors in test files ioerr5.test and malloc5.test because they test recycling dirty pages from other caches. (CVS 5615) 
FossilOrigin-Name: 9e511e161bcb077450d31fca5dd20c2557f103b3
 2008-08-26 18:05:48 +00:00
danielk1977
502b74309a Pick up a small performance increase by eliminating the pcacheRef() function. (CVS 5609) 
FossilOrigin-Name: e3840fbf0adf824941a4b9b3cac3a869f195d6f8
 2008-08-25 14:49:42 +00:00
danielk1977
8c20014a0a If the sector size is greater than the database page size, SQLite journals all pages that lie within a sector before writing to any of them. This change ensure that a journal sync does not occur halfway through journalling the set of pages that belong to a single sector. (CVS 5605) 
FossilOrigin-Name: 16f612d61e00938f29ecae4ebfe598be7a8709a8
 2008-08-25 07:12:28 +00:00
danielk1977
33e3216a3d Instead of marking a page as clean when sqlite3PagerDontWrite() is called, set a dedictated flag - PGHDR_DONT_WRITE. (CVS 5604) 
FossilOrigin-Name: a323bd29a600abddbcc2cc9961ab84d82cccc5e5
 2008-08-23 18:53:08 +00:00
drh
ee76c61657 Remove dead code. (CVS 5601) 
FossilOrigin-Name: 6de9c084fc533fbb22af6a4cd3e4e9a461b13876
 2008-08-22 17:34:45 +00:00
danielk1977
ed2781e3c8 Relinquish the pcache mutex before calling an xStress callback. This ensures that the pcache mutex is never held while IO is performed. (CVS 5599) 
FossilOrigin-Name: 8fe234b2ca1292955162d38922a45c93004fb6ae
 2008-08-22 17:09:49 +00:00
danielk1977
a858aa2e8c When recycling a page, try to find one that does not require a call to xSync() on the journal file. Also simplify some of the mutex related things in pcache. (CVS 5597) 
FossilOrigin-Name: 93dbc5427bebaa0b3d726731027caad3f70611c7
 2008-08-22 16:22:17 +00:00
drh
777c5386c3 Move date+time functions to start-time initialization. Additional 
start-time function cleanup. (CVS 5585)

FossilOrigin-Name: 80d6a31cb3851704c09ac9d99fe4bc241df3c180
 2008-08-21 20:21:34 +00:00
danielk1977
801880f66c Fix soft-heap-limit related test suite failures. (CVS 5582) 
FossilOrigin-Name: 2091d9a5260b1d7e27ff5ca93e60dae1e3b12081
 2008-08-21 15:54:01 +00:00
drh
69556698e0 Patch to mkfunction to try and detect miscompiles. Add an unimportant 
assert back to pcache.c. (CVS 5577)

FossilOrigin-Name: a2f375fffb49b6f6adbfd59d24e9c6a170fd5ebb
 2008-08-21 12:32:11 +00:00
danielk1977
67e3da7ad4 Fix the functionality associated with sqlite3_release_memory() and sqlite3_soft_heap_limit(). It is automatically disabled if the SQLITE_CONFIG_PAGECACHE option is used. (CVS 5576) 
FossilOrigin-Name: d025866b09352b32a6d35b97144eaad2fafb7165
 2008-08-21 12:19:44 +00:00