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50 check-ins occurring around 527231bc67285f01.

2013-04-02
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
14:16
In btree.c, save the positions of any open cursors before moving any pages around to auto-vacuum the database on commit. check-in: 30c0a69363 user: dan tags: experimental-mmap
01:07
Previous check-in accidently left mmap turned off by default. This checkin fixes that. Unfortunately, shared.test is now segfaulting. All other veryquick tests appear to work, however. check-in: a850c7319c user: drh tags: experimental-mmap
2013-03-25
23:09
Memory-mapped I/O is now on by default. The "PRAGMA mmap_limit(N)" can be used to issue a hint to the VFS to limit mmap space to N bytes. The VFS is free to ignore that hint if desired. However, if "PRAGMA mmap_limit(0)" is used, xFetch is never called. check-in: 1b37c4effd user: drh tags: experimental-mmap
20:50
Add munmap and mremap to the set of os interfaces that can be overloaded in os_unix.c. check-in: 8776047bd7 user: drh tags: experimental-mmap
20:30
Use mremap() on Linux. check-in: 431aecc860 user: dan tags: experimental-mmap
19:57
Merge all recent trunk changes into the experimental-mmap branch. check-in: a607d63f0b user: drh tags: experimental-mmap
19:05
Add a test that simulates an error in mmap(). check-in: 6ec7367d8e user: dan tags: experimental-mmap
18:25
Simulate OOM errors in the sqlite3OsFetch() function. Run malloc.test as part of the "mmap" permutation. check-in: 77443ef2cd user: dan tags: experimental-mmap
17:00
Change the signature of the xUnfetch method to "int (*xUnfetch)(sqlite3_file*, sqlite3_int64 iOfst, void *p)". check-in: 115b830509 user: dan tags: experimental-mmap
16:28
Remove unnecessary code to round the size of a memory mapping to 4KB from os_unix.c. Rename SQLITE_IOERR_MREMAP to SQLITE_IOERR_MMAP. Fix other small issues in os_unix.c. check-in: dce35c01a5 user: dan tags: experimental-mmap