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50 check-ins occurring around 11a85b821abff1ec.

2010-05-05
03:39
Do not attempt to modify the page_size when running VACUUM on a WAL database. (check-in: 58a1a59be8 user: drh tags: trunk)
00:22
Get the previous mutex fix working with SQLITE_DEBUG and with the amalgamation. (check-in: df19928f7e user: drh tags: trunk)
00:05
When the in single-threaded mode, the sqlite3_mutex_alloc() interface still returns a non-NULL value. The mutex doesn't do anything, but it tests non-NULL. This way, extensions (or VFSes) that use sqlite3_mutex_alloc() can tell the difference between an OOM error and mutexes being disabled. (check-in: 451fd17575 user: drh tags: trunk)
2010-05-04
18:50
When sqlite3PagerPagecount() is called without any locks, always return the physical file size, not the logical file size. (check-in: 4016b42228 user: drh tags: trunk)
17:38
Be sure to release all wal-index locks before closing the wal-index. (check-in: b15b67fa14 user: drh tags: trunk)
17:20
Relax an over-zealous assert() in sqlite3WalUndo(). (check-in: 8f9d22d58c user: drh tags: trunk)
16:33
Take care not to invoke the xShmClose method of the VFS with a NULL shared memory object. (check-in: 1465d3842c user: drh tags: trunk)
15:20
Add a test case to verify that log files containing pages that are not a power-of-two bytes in size are handled correctly. (check-in: c2bf693f93 user: dan tags: trunk)
14:47
Fix problems with recovering wal files that use a page-size other than the default. (check-in: 1a391f3c55 user: dan tags: trunk)
11:06
Fix a typo in walfault.test. (check-in: 232dbe8ece user: dan tags: trunk)
10:36
Test that the correct number of padding frames are appended to the log file after committing a transaction in synchronous=FULL mode. (check-in: a60104aa7e user: dan tags: trunk)
2010-05-03
19:20
Unset some global TCL variables prior to use in test where prior tests can have those same variables set to an array value. (check-in: 49bef00e5c user: drh tags: trunk)
19:17
Fix a bug in the computation of the current time for the alternative CURRENT_TIMESTAMP functions used when SQLITE_OMIT_DATETIME is defined. (check-in: e7ded46b5e user: drh tags: trunk)
18:51
Documentation stubs for sqlite3_wal_autocheckpoint and sqlite3_wal_checkpoint. (check-in: 313762427d user: drh tags: trunk)
18:22
Fix a bug in the xCurrentTime() method of the os_unix.c VFS. (check-in: 551df11a56 user: drh tags: trunk)
18:01
Add a test to simulate an OOM during log recovery to walfault.test. (check-in: 7ed85e87dd user: dan tags: trunk)
17:24
Clear global variable "seconds" before use in walthread.test. (check-in: a35551a530 user: drh tags: trunk)
17:18
Fix a couple of errors in WAL code that can occur in an OOM situation. (check-in: 9d3f3736be user: dan tags: trunk)
16:36
Update the crash-test VFS in test6.c to pass-through the shared-memory methods to the real underlying VFS. This fixes the walcrash.test script. (check-in: ea09ff3791 user: drh tags: trunk)
16:30
Change the VFS definition so that all methods take a VFS object pointer as their first parameter. (check-in: 43b5b07f0d user: drh tags: trunk)
15:58
Have sqlite3_wal_checkpoint() handle a zero-length string in the same way as a NULL pointer. Fix "PRAGMA wal_checkpoint" so that it checkpoints all attached databases. (check-in: 7fecd21f45 user: dan tags: trunk)
14:32
Use VFS method xCurrentTimeInt64 instead of xCurrentTime when it is available. Provide an implementation of xCurrentTimeInt64 for os_unix.c. (check-in: ab77b3ae6d user: drh tags: trunk)
14:08
Merge the write-ahead-logging changes into the trunk. (check-in: de9ae443cc user: drh tags: trunk)
14:05
If the sqlite3_wal_checkpoint() API is passed a NULL pointer in place of a database name, attempt to checkpoint all attached databases. (Closed-Leaf check-in: 27a5c09ce8 user: dan tags: wal)
13:37
Make sure the mutex is held while calling sqlite3ApiExit() in sqlite3_wal_checkpoint(). Other cleanup of WAL logic. (check-in: 11a85b821a user: drh tags: wal)
12:14
Have sqlite3_wal_checkpoint() populate the database handle error message and error code (as returned by sqlite3_errmsg() and sqlite3_errcode()). (check-in: ff234cf574 user: dan tags: wal)
11:05
Add the "PRAGMA wal_autocheckpoint" command. Rename "PRAGMA checkpoint" to "PRAGMA wal_checkpoint". (check-in: 714e594726 user: dan tags: wal)
08:19
Merge two wal leaves. (check-in: 23c0e6c3f3 user: dan tags: wal)
08:04
Add the sqlite3_wal_checkpoint() and sqlite3_wal_autocheckpoint() APIs. (check-in: 9803196dec user: dan tags: wal)
2010-05-01
20:17
Change the SHM interface so that it does not take the name of the shared object but rather the name of the WAL file and derives its own name from that. Remove the xShmDelete method from the VFS and replace it with a delete flag on xShmClose. (check-in: 94dea5f9c1 user: drh tags: wal)
18:23
Remove the xShmPush and xShmPull methods from the VFS. (check-in: 69e07fdbde user: drh tags: wal)
17:57
Define an invariant to guarantee deadlock-free operation of SHM in os_unix.c and check that invariant with assert() statements. (check-in: 6af2dca75b user: drh tags: wal)
17:50
Rework mutexes on the SHM implemention for os_unix to avoid a deadlock during WAL recovery. (check-in: 1a0f69bef2 user: drh tags: wal)
16:40
Support compile-time option SQLITE_OMIT_WAL, for building without WAL support. (check-in: 9b230c43df user: dan tags: wal)
11:33
Fix a typo in the walmode.test test script introducted yesterday. (check-in: dcabc90ca5 user: drh tags: wal)
11:19
Fix the sqlite3_mutex_alloc() interface to return NULL (not segfault) when operating in threadsafe mode. (This is a general-purpose bug fix which really ought to be ported to trunk.) (check-in: 64840a3caf user: drh tags: wal)
08:30
Add test case demonstrating deadlock during recovery of very large log files. No fix yet. (check-in: 63ea318eb1 user: dan tags: wal)
00:59
Do not allow journal_mode=WAL if the underlying VFS does not support xShmOpen. (check-in: d1fcccecdc user: drh tags: wal)
2010-04-30
22:28
Merge in changes from the trunk. (check-in: 76bf0eee1f user: drh tags: wal)
21:03
Avoid assertion faults in queries using indices with redundant columns. Ticket [3dbdcdb14e7f41]. (check-in: 946e06cd2a user: drh tags: trunk)
17:47
Change the SHM VFS logic in os_unix.c so that it does not hold an exclusive lock n the mapped memory when also holding a CHECKPOINT lock. This improves concurrency between readers and checkpointers. (check-in: 8660cda6f8 user: drh tags: wal)
17:28
Remove some obsolete debugging parameters. (check-in: a012aed498 user: drh tags: wal)
17:05
Fix a problem with resizing the wal-index mapping after the mapping has been extended by an external process. (check-in: 79d356fea6 user: dan tags: wal)
16:50
Fix a problem with calculating the required size of the wal-index when appending frames. (check-in: 9526b11130 user: dan tags: wal)
16:48
In the debugging output for SHM-LOCK in os_unix.c, use symbolic names for the lock states rather than raw numbers. (check-in: 2afc33de2b user: drh tags: wal)
16:41
Fix a problem in the previous commit. Both unixShm.lockState and unixShm.readLock should be set to READ when downgrading from a WRITE to a READ lock (check-in: 90119fecbc user: dan tags: wal)
16:38
Fix a bug whereby upgrading from a READ_FULL to a WRITE lock, and then back to a read lock was dropping all WAL locks. (check-in: 55f5af5e17 user: dan tags: wal)
16:24
Reapply commits [837d82a929] and [c05e7dca17] that were accidentally overwritten. (check-in: 598de52700 user: dan tags: wal)
16:19
Add xShmXXX() methods to the test VFS in test_devsym.test. (check-in: 1d20342424 user: dan tags: wal)
16:12
Correctly record the fact that the SHM lock reached PENDING if it did so but failed to reach CHECKPOINT. (check-in: d9250e84ac user: drh tags: wal)