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50 descendants of b387e2f9d24dccac
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2013-04-01
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| 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| 16:56 | Ensure that a checkpoint does not use an out-of-date mapping.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) | |
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2013-03-29
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| 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) | |
| 11:24 | Avoid assuming the page-size is 4096 bytes in os_unix.c. (check-in: 3b7ec8d79e user: dan tags: two-mappings) | |
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2013-03-27
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| 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) | |
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2013-03-26
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| 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) | |
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2013-03-25
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| 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) | |
| 14:31 | Do not return SQLITE_IOERR when the user attempts to open a small file that is not a database with mmap enabled. Instead return SQLITE_NOTADB. (check-in: bbcaab3e80 user: dan tags: experimental-mmap) | |
| 13:50 | Fix a case in the pager where an xFetch() reference was being leaked following an OOM error. (check-in: 5885ba6ce7 user: dan tags: experimental-mmap) | |
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2013-03-23
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| 21:00 | Replace the sqlite3_io_methods.xMremap interface with sqlite3_io_methods.xFetch and xUnfetch. (check-in: 1431be9557 user: dan tags: experimental-mmap) | |
| 17:29 | Improve a comment in wal.c. No code changes. (check-in: 60b9f5e4dd user: dan tags: experimental-mmap) | |
| 14:20 | Fix a case where a checkpoint operation could write to an invalid part of a memory mapped region. (check-in: 8dbe89d05c user: dan tags: experimental-mmap) | |
| 12:15 | In the winMremap VFS function, unmap the region prior to attempting to truncate the file. (check-in: 8870c4cc6c user: mistachkin tags: experimental-mmap) | |
| 10:09 | Do not unmap the mapped file region in winTruncate as there may be outstanding pointers to it. (check-in: f57a9c91e9 user: mistachkin tags: experimental-mmap) | |
| 09:56 | Preliminary changes to support the xMremap VFS method on Windows. (check-in: 75a85a1c6a user: mistachkin tags: experimental-mmap) | |
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2013-03-22
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| 20:15 | Update wal mode tests so that they work with the mmap test permutation. (check-in: f7295872a3 user: dan tags: experimental-mmap) | |
| 19:56 | Fix a potential NULL-pointer dereference in btreeSwapOutMmap(). (check-in: e81ccdcd87 user: drh tags: experimental-mmap) | |
| 19:17 | Fix a case where the mapped part of a database file may be written during a backup operation. (check-in: c8d67aefff user: dan tags: experimental-mmap) | |
| 18:20 | Allow the database file to be memory mapped in wal mode. (check-in: d190ddabc3 user: dan tags: experimental-mmap) | |
| 17:46 | Add a fix for the assert() statements added by the previous commit. (check-in: 19345416ed user: dan tags: experimental-mmap) | |
| 08:58 | Add assert statements to os_unix.c to ensure that any mapped region of the database file is not being read or written using the xRead() or xWrite() methods. (check-in: 765615f9fb user: dan tags: experimental-mmap) | |
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2013-03-21
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| 20:39 | Fix cases where xRead() was being used to read from a memory mapped part of the database file. (check-in: 5c9e9df27b user: dan tags: experimental-mmap) | |
| 20:00 | Avoid calling xRead() on a part of the database file that is memory mapped. (check-in: c8eac290a7 user: dan tags: experimental-mmap) | |
| 15:57 | Fix a problem when opening a write-transaction while there exist read-only b-tree cursors in mmap mode. (check-in: 32e0bbb736 user: dan tags: experimental-mmap) | |
| 14:47 | Do not use the Linux mremap() call. Use the same strategy for xMremap() as on OSX instead. (check-in: 5ed8ad780c user: dan tags: experimental-mmap) | |
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2013-03-20
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| 18:25 | Optimize the xMremap method in os_unix.c some. (check-in: 9529ed88a7 user: dan tags: experimental-mmap) | |
| 14:26 | When possible, use memory mapping when appending new pages to a database file. (check-in: 14135da3cd user: dan tags: experimental-mmap) | |
| 10:07 | Add test file mmap1.test. (check-in: aee1f53a74 user: dan tags: experimental-mmap) | |
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2013-03-19
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| 19:28 | Add the sqlite3_io_methods.xMremap() method to the VFS interface. Also "PRAGMA mmap_size". (check-in: 6183f1bd86 user: dan tags: experimental-mmap) | |
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2013-03-16
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| 20:19 | When possible, use memcpy() to and from the mapped region instead of xWrite() and xRead(). (check-in: f8ca5622d9 user: dan tags: experimental-mmap) | |
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2013-03-15
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| 19:13 | Fix a dropped error code in pager.c. (check-in: 022fdc986b user: dan tags: experimental-mmap) | |
| 18:29 | Allow read-only cursors to use mmap pages even if there is an open write transaction. (check-in: b387e2f9d2 user: dan tags: experimental-mmap) | |