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50 check-ins occurring around 5f4437c0e35c8aa7.

2013-04-03
11:17
In btree.c, save the positions of other cursors open on the same table when writing via an incremental blob handle. Otherwise, they may be left holding an out-of-date xFetch page reference. (check-in: 3f09fba18f user: dan tags: experimental-mmap)
10:50
Initialize the mmap_limit of temporary files to the configured mmap_limit. (check-in: 24bab7596b user: drh tags: experimental-mmap)
03:53
Make use of xFetch, if it is available when doing a VACUUM or a backup. (check-in: 83bc37af07 user: drh tags: experimental-mmap)
01:26
Add the -mmap option to the command-line shell, for setting the default mmap_limit. (check-in: fc30d06c94 user: drh tags: experimental-mmap)
00:42
Fix the unix driver to check defined(_BSD_SOURCE) rather than just the plain _BSD_SOURCE macro. This fixes the build for OpenBSD. (check-in: 1dd42ef414 user: drh tags: experimental-mmap)
2013-04-02
20:55
Fix a resource leak in os_unix.c. (check-in: b29cda03fe user: dan tags: experimental-mmap)
20:29
Adjustments to mmap1.test so that it works better on windows. It still gets some answers wrong, but it no longer crashes. (check-in: ee8d3ceeec user: drh tags: experimental-mmap)
20:19
Fix a bug in mmap2.test that was leaving an invalid sqlite3_log() callback installed, causing a crash. (check-in: c0cdaa0735 user: dan tags: experimental-mmap)
20:13
Add assert to the Windows VFS pertaining to the size of the SIZE_T type. (check-in: 4eeea58354 user: mistachkin tags: experimental-mmap)
18:33
Add test cases to mmap1.test and pagerfault.test. (check-in: 3050136be9 user: dan tags: experimental-mmap)
18:31
Change an assert in pager.c to acknowledge that it is possible for sqlite3PagerRollback() to return SQLITE_CORRUPT. (check-in: d641d3d20d user: dan tags: experimental-mmap)
18:25
Fix the build for Mac. (check-in: d36ce0bbad user: drh tags: experimental-mmap)
15:37
Add new test file btreefault.test. (check-in: 7fe908afeb user: dan tags: experimental-mmap)
14:37
Fix a faulty assert() in the os_win.c VFS. (check-in: fd6ee54969 user: drh tags: experimental-mmap)
13:56
If the SQLITE_TRACE_SIZE_LIMIT compile-time parameter is set to a positive integer then limit the expansion of strings and blobs in trace output to approximately that many bytes. (check-in: e5b710849d user: drh tags: trunk)
12:04
Add test cases for errors in mmap() or mremap() is os_unix.c. (check-in: 3098a3c1e7 user: dan tags: experimental-mmap)
10:29
Proposed template preprocessor magic for activating mmap only on platforms where we know it works. (check-in: d96272f031 user: drh tags: experimental-mmap)
01:45
Reorder two conditions to make coverage testing easier. (check-in: 793ba4e996 user: drh tags: experimental-mmap)
00:41
Remove an unreachable condition from pager.c. (check-in: 3628e86bf1 user: drh tags: experimental-mmap)
00:15
Always send the SQLITE_FCNTL_MMAP_LIMIT pragma to the VFS, even if the limit is zero and even if the VFS does not support xFetch(). (check-in: 01ffdabbad user: drh tags: experimental-mmap)
2013-04-01
22:42
Remove a debugging printf() accidently left in the previous check-in. (check-in: 8198cdd8ac user: drh tags: experimental-mmap)
22:38
Add the SQLITE_CONFIG_MMAP_LIMIT configuration option for overriding the SQLITE_DEFAULT_MMAP_LIMIT compile-time setting. Enhance "PRAGMA mmap_limit" so that without a specific database name, it sets the limit on all database files and changes the default for any future databases that might be added using ATTACH. (check-in: 78141d0a16 user: drh tags: experimental-mmap)
18:25
Add a comment to xUnfetch on windows to say that the call to winUnmapfile() might be unnecessary. (check-in: e3c63c31a2 user: drh tags: experimental-mmap)
18:15
In windows, round down the size of the memory mapped region to the next smaller multiple of the page size. (check-in: 0e44ed1bad user: drh tags: experimental-mmap)
17:58
Merge accidental fork. (check-in: 5f4437c0e3 user: dan tags: experimental-mmap)
17:56
Attempt to emulate mremap() on non-Linux systems by allocating a second mapping immediately following the first in virtual memory. (check-in: 4d67433db8 user: dan tags: experimental-mmap)
17:56
Bug fix in the winMapfile() subroutine: Be sure to record the map object handle in the sqlite3_file object. (check-in: ee4d188e20 user: drh tags: experimental-mmap)
17:22
Add xFetch and xUnfetch methods to the os_win.c VFS. (check-in: a1653a257d user: drh tags: experimental-mmap)
16:56
Ensure that a checkpoint does not use an out-of-date mapping. (check-in: a1040f0397 user: dan tags: experimental-mmap)
14:35
Fix a typo in a log message in wal.c. (check-in: 83fc48d165 user: dan tags: experimental-mmap)
14:29
Fix a problem in btree.c that could cause a crash following an OOM. (check-in: b724aa5889 user: dan tags: experimental-mmap)
14:20
Minor changes to unixMapfile() function. (Leaf check-in: 80c63443c4 user: dan tags: two-mappings)
2013-03-29
19:52
For the clean target, tidy up a couple more generated (or copied) source files. (check-in: 5687e5ee7b user: mistachkin tags: trunk)
19:38
Further fixes for test scripts. (check-in: 23ffa4f9fb user: dan tags: two-mappings)
18:52
Fix a problem in btree.c that could cause a crash following an OOM. Also various test script problems. (check-in: e8bcdf938e user: dan tags: two-mappings)
13:44
Version 3.7.16.1 (check-in: 527231bc67 user: drh tags: trunk, release, version-3.7.16.1)
11:24
Avoid assuming the page-size is 4096 bytes in os_unix.c. (check-in: 3b7ec8d79e user: dan tags: two-mappings)
2013-03-28
11:40
Adjustment to an extreme corner case in the sqlite3Atoi64() routine. (check-in: 39534b4baa user: drh tags: trunk)
01:19
Merge the changes for the 3.7.16.1 release candidate into the sessions branch. (check-in: ee35a89712 user: drh tags: sessions)
2013-03-27
20:41
Fix harmless compiler warnings coming from MSVC64 in test code. No changes to the core. (check-in: 274d2a2266 user: drh tags: trunk)
19:53
Modify various test cases so that they work if the file is extended in units of the system page-size. (check-in: 0e3d511927 user: dan tags: two-mappings)
19:46
Increment the version number to 3.7.16.1. (check-in: 7e32eb7b66 user: drh tags: trunk)
17:20
In order to optimize out the ORDER BY clause, outer loops must generate values for ORDER BY terms that are unique or else the inner loops must generate no more than a single row. Fix for ticket [a179fe7465]. (check-in: 2936f7466e user: drh tags: trunk)
16:42
Restore additional ORDER BY optimizations that where broken by the recent ORDER BY fix. (Closed-Leaf check-in: c77ee6e20d user: drh tags: orderby-fix)
16:05
Improved optimization of ORDER BY. (check-in: 97e5c70f2f user: drh tags: orderby-fix)
15:04
A fix and test-case for the ORDER BY problem identified by ticket [a179fe7465]. This change causes sorting to occur in some cases where it is not strictly necessary. Further work is needed to avoid those extra sorts. (check-in: 488089e615 user: drh tags: orderby-fix)
03:15
Candidate fix for ticket [6bfb98dfc0c]: Make sure invalid cursors drop all references to database pages prior to doing any insert or update. (check-in: 322a5f086d user: drh tags: trunk)
2013-03-26
20:32
Change os_unix.c to use either one or two mappings internally. (check-in: e7698cba9b user: dan tags: two-mappings)
18:48
Fix a comment in os_unix.c. No code changes. (check-in: 72813b8ec9 user: drh tags: experimental-mmap)
14:36
Change the name of the Pager.pFree field to Pager.pMmapFreelist. (check-in: 611bd824c2 user: drh tags: experimental-mmap)