0f308f5d47
Add a new assert() statement to the snapshot-specific part of sqlite3WalBeginReadTrans().
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FossilOrigin-Name: d8a12023be32bdc6df18b0a5f38b917799854342
2015-12-11 14:59:49 +00:00
c49e960d41
Fix a variable type mismatch problem in the snapshot logic.
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FossilOrigin-Name: 93fb8010e4999b6b832d63a7c5a152f65d4415a3
2015-12-11 03:16:54 +00:00
71b62fa456
Fix a bad assert related to snapshots.
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FossilOrigin-Name: 767ee30efa5dd469e3a51d4e44cbe473061819b9
2015-12-11 01:22:22 +00:00
e230a8994e
Snapshot documentation updates. Comment changes only - no changes to code.
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FossilOrigin-Name: ef51a398a04963508389ffe2f9d8359c1ec48261
2015-12-10 22:48:22 +00:00
a7aeb39836
Return SQLITE_BUSY (not SQLITE_BUSY_SNAPSHOT) if sqlite3_snapshot_open() fails to obtain the shared checkpointer lock.
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FossilOrigin-Name: 5343060bcc6c99029f731f8020d2cba3f405f207
2015-12-10 19:11:34 +00:00
3bf83ccd70
Have sqlite3_snapshot_open() avoid a race condition by taking a shared CHECKPOINTER lock while checking pInfo->nBackfillAttempted.
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FossilOrigin-Name: 8084eae0bc4f6513b1147fb890a6b2813f1c0a09
2015-12-10 15:45:15 +00:00
c9fb38e7ad
Fix spacing typo in comment. No changes to code.
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FossilOrigin-Name: 3a18526fc2253658dad84c5e600481c8a62efe40
2015-12-10 03:16:47 +00:00
998147ec38
Add the nBackfillAttempted field in formerly unused space in WalCkptInfo and
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use that field to close the race condition on opening a snapshot.
FossilOrigin-Name: cb68e9d0738fc7db7316947b4d2aab91aae819f2
2015-12-10 02:15:03 +00:00
65127cd57d
Update sqlite3_snapshot_open() to reduce the chances of reading a corrupt snapshot created by a checkpointer process exiting unexpectedly.
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FossilOrigin-Name: 7315f7cbf4179aadda0f1a0baa1526a9b9f9729f
2015-12-09 20:05:27 +00:00
818b11aebb
Add tests for snapshot_get(), _open() and _free().
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FossilOrigin-Name: 502cc6f353358946080d9bcd335aed526825b88a
2015-12-07 14:33:07 +00:00
fc1acf33b8
Add untested implementations of experimental APIs sqlite3_snapshot_get(), _open() and _free().
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FossilOrigin-Name: 0715eb00aa8891400cd50a15509d3d7b13789626
2015-12-05 20:51:54 +00:00
ab37277367
Remove more (dead) SQLITE_FCNTL_WAL_BLOCK logic from wal.c - code that was
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missed during the [e1d5320ca08933] check-in.
FossilOrigin-Name: 58c15c6af964563ac7ece8606d16730ccf9ee72b
2015-12-02 16:10:16 +00:00
5c472d0860
Fix an assert() enabled by SQLITE_ENABLE_EXPENSIVE_ASSERT in wal.c.
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FossilOrigin-Name: 8d2ed150a7a15626965cf994ef48c3ab61eca6ec
2015-09-09 19:44:33 +00:00
b8c7cfb834
When searching the wal file for a frame, do not search that part that was already checkpointed when the snapshot being read was at the head of the wal file.
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FossilOrigin-Name: 90760e72327eb0593cbfa6d7058b554198cd8044
2015-08-13 20:23:46 +00:00
6df003c7a5
Avoid reading frames that have already been checkpointed from the wal file.
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FossilOrigin-Name: 5669ac4a40429abc3f44540fc9d2f3b79b404bdf
2015-08-12 19:42:08 +00:00
6b67a8ae03
Fix harmless compiler warning in MSVC 2015.
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FossilOrigin-Name: 01c8b9ccfa0f336dfead7c004de3de571753f707
2015-07-21 19:22:35 +00:00
f6bff3f5d6
Avoid a harmless compiler warning.
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FossilOrigin-Name: 2288842b8f191ff05a157db7f77af867bfa83c4f
2015-07-17 01:16:10 +00:00
f4fa0b8073
Fix some harmless compiler warnings.
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FossilOrigin-Name: 110cd84f5e842c4dcd9b9398cea211e25f36b3aa
2015-07-15 18:35:54 +00:00
f3cdcdccbe
Use sqlite3_malloc64() in place of sqlite3_malloc() internally.
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FossilOrigin-Name: 48f553b05c05373c0af4b9c3a542979db3a2ee19
2015-04-29 16:50:28 +00:00
1fe0af200d
Add a comment to wal.c to explain why a race condition is safe.
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FossilOrigin-Name: bc33af866403c23d548dd4705675315810d52d7f
2015-04-13 17:43:43 +00:00
bbf76eec34
Arrange for some of the transient locks in WAL mode to block, as a single
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to the OS to fix priority inversions.
FossilOrigin-Name: c6e6d5f4e06c3ac0bfb620c0c728fbc7230c4a02
2015-03-10 20:22:35 +00:00
976b003344
Ensure that "PRAGMA wal_checkpoint = TRUNCATE|FULL|RESTART" block on other connections and truncate the database file as required even if the entire wal file has already been checkpointed.
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FossilOrigin-Name: 53429689d4fcf472edbc89cc50b5e69ba3270634
2015-01-29 19:12:12 +00:00
622a53d54a
Reinstate an assert() by adding an "|| CORRUPT_DB" term.
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FossilOrigin-Name: 95ce20348d9b868a0407adccdb222a0e4c762945
2014-12-29 11:50:39 +00:00
a25165fa68
Add an implementation mark and fix a comment describing the OP_Checkpoint
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opcode.
FossilOrigin-Name: 7475b90c558157802b036162376fceacc1b9ab4a
2014-12-04 04:50:59 +00:00
dd90d7ee81
Add evidence marks and assert()s used as evidence for checkpoint requirements.
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FossilOrigin-Name: b2da8afc7657266fbe8e683c6e50fe18216cbcf3
2014-12-03 19:25:41 +00:00
0fe8c1b967
When attempting to restart a wal file, make any required calls to sqlite3_randomness() before waiting on or checking for wal file readers. This restores the behaviour exhibited by the trunk.
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FossilOrigin-Name: 6ee08769f0ffbb3d620c66b89180ece7782dc820
2014-12-02 19:35:09 +00:00
f26a1549ac
Add the SQLITE_CHECKPOINT_TRUNCATE option.
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FossilOrigin-Name: 8e20a43419e46b6b9d1f60ec7ea420bbfb3ef358
2014-12-02 19:04:54 +00:00
664f85dd59
Add an ALWAYS on an always-true branch in wal.c.
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Fix the ANALYZE command so that it resets the "unordered" and "noskipscan"
flags on indices when reloading the sqlite_stat1 table.
FossilOrigin-Name: 9ed97a85feee6593faefa2b54cc4cf9a60f515f9
2014-11-19 14:05:41 +00:00
47b7fc7843
Experimental changes that permit read operations to continue after a
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ROLLBACK, as long as the schema is unchanged.
FossilOrigin-Name: fa6e6a9ae276cad60e9a4abc1bc23cf2809ea786
2014-11-11 01:33:57 +00:00
cbd55b0362
Change the definition of SQLITE_CONFIG_SCRATCH so that at most one scratch
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buffer is used per thread. Use the generic heap memory allocator for the
WalIterator object when running a checkpoint.
FossilOrigin-Name: 391c9b85abcb5ba300fb2e116384639310c69ed2
2014-11-04 14:22:27 +00:00
60ec914c74
Fix typos in comments. No code changes.
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FossilOrigin-Name: e62aab5e9290503869e1f4d5e0fefd2b4dee0a69
2014-09-06 16:39:46 +00:00
5b6e3b9781
Increase the WAL-mode SQLITE_PROTOCOL timeout to 10 seconds.
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FossilOrigin-Name: 2aeacf81df92b4fe5d1825c1dc1cd176b8af8bd9
2014-06-12 17:10:18 +00:00
dd973548f1
Ensure that if the "psow=0" URI option or FCNTL_POWERSAFE_OVERWRITE file-control is used to clear the power-safe overwrite flag, extra padding frames are added to the WAL file.
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FossilOrigin-Name: 48c821fd97a8f03757c90560c37a46bd0843570e
2014-02-13 19:27:08 +00:00
e5b6ea797e
Avoid passing a flags argument with the internal WAL_SYNC_TRANSACTIONS bit set when calling sqlite3OsSync().
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FossilOrigin-Name: e3b79e920c298a39613631d689d1a2f182d00496
2014-02-13 18:46:59 +00:00
f73819af05
Add extended error code SQLITE_BUSY_SNAPSHOT - returned in WAL mode when a read-transaction cannot be upgraded to a write-transaction because it is reading from a snapshot other than the most recently committed.
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FossilOrigin-Name: 361c22969aa75340ed696e00e3dc5d17d5493bee
2013-06-27 11:46:27 +00:00
d040e76442
Add new primary error codes SQLITE_NOTICE and SQLITE_WARNING for use with
...
sqlite3_log(). Add new extended error codes SQLITE_NOTICE_RECOVER_WAL and
SQLITE_NOTICE_RECOVER_ROLLBACK to use with sqlite3_log() messages that occur
on each recovery.
FossilOrigin-Name: be7d2c5482c41baf000d7fb5dccc31b974e91064
2013-04-10 23:48:37 +00:00
f55a4cf80c
Ensure that a checkpoint does not use an out-of-date mapping.
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FossilOrigin-Name: a1040f0397d57855500926494c978623286ddc77
2013-04-01 16:56:41 +00:00
0943f0bdc8
Fix a typo in a log message in wal.c.
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FossilOrigin-Name: 83fc48d16572443373e5de62adbd4cd53c2f7786
2013-04-01 14:35:01 +00:00
f23da96636
Replace the sqlite3_io_methods.xMremap interface with sqlite3_io_methods.xFetch and xUnfetch.
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FossilOrigin-Name: 1431be95579160fb70408d43e17fc23c7b69ab4a
2013-03-23 21:00:41 +00:00
e5586a1a79
Improve a comment in wal.c. No code changes.
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FossilOrigin-Name: 60b9f5e4dd2af54975ba78437239f0bebd472fd2
2013-03-23 17:29:06 +00:00
99bd10979a
Allow the database file to be memory mapped in wal mode.
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FossilOrigin-Name: d190ddabc386bc9654b99e33fb81b2f6e67b54d6
2013-03-22 18:20:14 +00:00
7eb0575287
Fix a failing assert() in wal.c.
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FossilOrigin-Name: 8745530b9a877db77fe2ca3ea9c6bc99ce033055
2012-10-15 11:28:24 +00:00
c9a5326974
Ensure that the value returned by xSectorSize() is reasonable (currently defined as between 2^5 and 2^16 bytes) before using it to calculate the amount of padding to add to a wal file.
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FossilOrigin-Name: 6b4ff83bff07d427af585c9fd03be90abf2fc82f
2012-10-01 06:50:55 +00:00
d5578433ff
Fix all known instances of 'repeated the' style typos in comments. No changes to code.
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FossilOrigin-Name: 9b19b847533f944f289d93dcdba29c0d67bf251c
2012-08-25 10:01:29 +00:00
5373b76bdc
Ensure that there is always at least one aReadMark slot usable by an unprivileged reader while a checkpoint is running. Also, if one or more transactions are recovered from a log file, initialize one of the aReadMark slots to contain mxFrame as part of the recovery process.
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FossilOrigin-Name: e4163596339c2166f9c4356ab824fff8bda8d0b0
2012-07-17 14:37:12 +00:00
610b8d8578
Amplification of a comment in wal.c. Change the aReadMark[] processing so
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that one read mark is left at zero when a WAL resets.
FossilOrigin-Name: 8c9ee1d78f99394eef73a177141ca9e1c67e4e07
2012-07-17 02:56:05 +00:00
f602963dbc
Fix spurious errors that may occur if an empty database is opened and then initialized as a WAL database by a second connection.
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FossilOrigin-Name: 16330a2f7262173a32ae48a72c0ee2522b6dc554
2012-02-28 17:57:34 +00:00
70708600b5
Add #ifdef SQLITE_ENABLE_ZIPVFS around those bits of code that are only
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used by ZIPVFS.
FossilOrigin-Name: 3130275c64a60c5cfacbd11123305e6d99ea866d
2012-02-24 14:33:28 +00:00
bf24261b7b
Fix a typo made inside an assert() statement in the previous commit.
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FossilOrigin-Name: f0640615f25ebe8bf2eed0e1a0f2e309471889fe
2012-02-23 16:45:42 +00:00
b3bdc72ded
Add the sqlite3PagerWalFramesize() function to pager.c. This is used by zipvfs.
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FossilOrigin-Name: 786e24dc56504d1958db0618e645610f2600a087
2012-02-23 15:35:49 +00:00
