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98aa1d735eb80f90b4523f50c17fc965ce967c79
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330 Commits

Author SHA1 Message Date
dan
f26a1549ac Add the SQLITE_CHECKPOINT_TRUNCATE option. 
FossilOrigin-Name: 8e20a43419e46b6b9d1f60ec7ea420bbfb3ef358
 2014-12-02 19:04:54 +00:00
drh
664f85dd59 Add an ALWAYS on an always-true branch in wal.c. 
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
drh
47b7fc7843 Experimental changes that permit read operations to continue after a 
ROLLBACK, as long as the schema is unchanged.

FossilOrigin-Name: fa6e6a9ae276cad60e9a4abc1bc23cf2809ea786
 2014-11-11 01:33:57 +00:00
drh
cbd55b0362 Change the definition of SQLITE_CONFIG_SCRATCH so that at most one scratch 
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
peter.d.reid
60ec914c74 Fix typos in comments. No code changes. 
FossilOrigin-Name: e62aab5e9290503869e1f4d5e0fefd2b4dee0a69
 2014-09-06 16:39:46 +00:00
drh
5b6e3b9781 Increase the WAL-mode SQLITE_PROTOCOL timeout to 10 seconds. 
FossilOrigin-Name: 2aeacf81df92b4fe5d1825c1dc1cd176b8af8bd9
 2014-06-12 17:10:18 +00:00
dan
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. 
FossilOrigin-Name: 48c821fd97a8f03757c90560c37a46bd0843570e
 2014-02-13 19:27:08 +00:00
dan
e5b6ea797e Avoid passing a flags argument with the internal WAL_SYNC_TRANSACTIONS bit set when calling sqlite3OsSync(). 
FossilOrigin-Name: e3b79e920c298a39613631d689d1a2f182d00496
 2014-02-13 18:46:59 +00:00
dan
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. 
FossilOrigin-Name: 361c22969aa75340ed696e00e3dc5d17d5493bee
 2013-06-27 11:46:27 +00:00
drh
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
dan
f55a4cf80c Ensure that a checkpoint does not use an out-of-date mapping. 
FossilOrigin-Name: a1040f0397d57855500926494c978623286ddc77
 2013-04-01 16:56:41 +00:00
dan
0943f0bdc8 Fix a typo in a log message in wal.c. 
FossilOrigin-Name: 83fc48d16572443373e5de62adbd4cd53c2f7786
 2013-04-01 14:35:01 +00:00
dan
f23da96636 Replace the sqlite3_io_methods.xMremap interface with sqlite3_io_methods.xFetch and xUnfetch. 
FossilOrigin-Name: 1431be95579160fb70408d43e17fc23c7b69ab4a
 2013-03-23 21:00:41 +00:00
dan
e5586a1a79 Improve a comment in wal.c. No code changes. 
FossilOrigin-Name: 60b9f5e4dd2af54975ba78437239f0bebd472fd2
 2013-03-23 17:29:06 +00:00
dan
99bd10979a Allow the database file to be memory mapped in wal mode. 
FossilOrigin-Name: d190ddabc386bc9654b99e33fb81b2f6e67b54d6
 2013-03-22 18:20:14 +00:00
dan
7eb0575287 Fix a failing assert() in wal.c. 
FossilOrigin-Name: 8745530b9a877db77fe2ca3ea9c6bc99ce033055
 2012-10-15 11:28:24 +00:00
dan
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. 
FossilOrigin-Name: 6b4ff83bff07d427af585c9fd03be90abf2fc82f
 2012-10-01 06:50:55 +00:00
mistachkin
d5578433ff Fix all known instances of 'repeated the' style typos in comments. No changes to code. 
FossilOrigin-Name: 9b19b847533f944f289d93dcdba29c0d67bf251c
 2012-08-25 10:01:29 +00:00
dan
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. 
FossilOrigin-Name: e4163596339c2166f9c4356ab824fff8bda8d0b0
 2012-07-17 14:37:12 +00:00
drh
610b8d8578 Amplification of a comment in wal.c. Change the aReadMark[] processing so 
that one read mark is left at zero when a WAL resets.

FossilOrigin-Name: 8c9ee1d78f99394eef73a177141ca9e1c67e4e07
 2012-07-17 02:56:05 +00:00
dan
f602963dbc Fix spurious errors that may occur if an empty database is opened and then initialized as a WAL database by a second connection. 
FossilOrigin-Name: 16330a2f7262173a32ae48a72c0ee2522b6dc554
 2012-02-28 17:57:34 +00:00
drh
70708600b5 Add #ifdef SQLITE_ENABLE_ZIPVFS around those bits of code that are only 
used by ZIPVFS.

FossilOrigin-Name: 3130275c64a60c5cfacbd11123305e6d99ea866d
 2012-02-24 14:33:28 +00:00
dan
bf24261b7b Fix a typo made inside an assert() statement in the previous commit. 
FossilOrigin-Name: f0640615f25ebe8bf2eed0e1a0f2e309471889fe
 2012-02-23 16:45:42 +00:00
dan
b3bdc72ded Add the sqlite3PagerWalFramesize() function to pager.c. This is used by zipvfs. 
FossilOrigin-Name: 786e24dc56504d1958db0618e645610f2600a087
 2012-02-23 15:35:49 +00:00
drh
c02372ce6f Refactor sqlite3OsFileControlNoFail() into sqlite3FileControlHint(). 
FossilOrigin-Name: 722735a4f316630c907149f08d3d7dccc0facd9a
 2012-01-10 17:59:59 +00:00
dan
6f2f19a154 Add function sqlite3OsFileControlNoFail(), which is the same as sqlite3OsFileControl() except that it does not simulate OOM errors. This saves adding calls to the BenignMalloc() functions around each of the invocations of sqliteOsFileControl() that ignore the return code. 
FossilOrigin-Name: af59b182d797642e5ec3ddf291cf62662a136bd1
 2012-01-10 16:56:39 +00:00
drh
92c45cf0fe Remove the BenignMalloc() from around the call to FCNTL_OVERWRITE. Add 
new ones around sqlite3OsDelete().  Fix an assert that causes problems for
the nx-devkit.

FossilOrigin-Name: 38bc4236d5a9d9f22a525bf9308d90cd4d9ce5a4
 2012-01-10 00:24:59 +00:00
drh
20e226d979 Tweaks to improve testability. 
FossilOrigin-Name: e3a929e43180f41095cc2cd00c6b0781856a4474
 2012-01-01 13:58:53 +00:00
drh
4e5e108e83 Avoid excess syncs when padding a transaction in a WAL. 
FossilOrigin-Name: 1f24ae716df6232de768e245ea990049deee3c22
 2011-12-23 13:32:07 +00:00
drh
cc8d10a0fd Merge the POWERSAFE_OVERWRITE features and the use of statvfs() from the 
statvfs branch into trunk.

FossilOrigin-Name: 2370d70eb51d2259aaa8073d861ab79d6637cbd9
 2011-12-23 02:07:10 +00:00
drh
cb15f35f3b Change the name ZERO_DAMAGE to the more descriptive POWERSAFE_OVERWRITE. 
The query parameter used to control this device characteristic is now "psow".

FossilOrigin-Name: 6191c5e45175f5c6040e891843b0725a929d6dd7
 2011-12-23 01:04:17 +00:00
drh
3b5b351b65 Remove a redundant assignment operator. 
FossilOrigin-Name: 19a6852a1e5905b35bc69b309951c5ec8ecd0bef
 2011-12-22 01:46:04 +00:00
drh
f694aa6454 Remove the code that tries to detect OOO header writes on a WAL recovery. 
The code is made obsolete by syncing the WAL header.

FossilOrigin-Name: 7ac713a14e24c48651c2a97acc9839850fa7f3c3
 2011-12-20 22:18:51 +00:00
drh
d992b150c7 Refactor the sqlite3WalFrames() routine for clarity of presentation. 
Do the padded transaction sync as the write pointer crosses the final
sector boundary instead of at the end, for efficiency.  Always sync
the WAL header immediately after it is written.

FossilOrigin-Name: 92c73b421b6242b09247dfb759777a531a107523
 2011-12-20 20:13:25 +00:00
drh
4120994fdf Assert that the isCommit parameter to sqlite3WalFrames() is zero if and 
only if the nTruncate parameter is zero.

FossilOrigin-Name: 979daf92e09305665d943e197b93b81139197c5b
 2011-12-20 13:13:09 +00:00
drh
374f4a0447 For improved clarity of presentation, 
refactor some of the code associated with ZERO_DAMAGE and sector-size.

FossilOrigin-Name: 1dde96c9ee88af1c4e37c2e65acb7c0fe6a20e2a
 2011-12-17 20:02:11 +00:00
drh
8bbaa89d8d Add SQLITE_IOCAP_ZERO_DAMAGE and enable it for both unix and windows. Use 
this device characteristic to reduce the required work in journaling.
A side effect is that this changes the default page exists back to 1024
even with the use of statvfs().

FossilOrigin-Name: a0be6ea464695fdf1eaf2b7cf0652778617814f2
 2011-12-17 19:49:02 +00:00
drh
fe6163d7cf Merge in changes that cause the first sector of the WAL file to be synced 
when the WAL restarts.  This is a fix for the power-loss corruption
problem described in ticket [ff5be73dee086]

FossilOrigin-Name: 44ca4d123385d759c11919865525c998c2e35bdb
 2011-12-17 13:45:28 +00:00
drh
d2980310d0 Make sure the Salt-1 value in the WAL file is sequentially numbered at 
each checkpoint, as it says it should be in the documentation.

FossilOrigin-Name: 7b63b11b93396079131686abb36c4221354fa50e
 2011-12-17 01:31:44 +00:00
drh
4eb02a4556 Enhance the WAL header sync so that it honors the various synchronous 
pragmas, settings, and device characteristics.

FossilOrigin-Name: 9799241f7de952c4d1ea8bf6508b577d2b57a370
 2011-12-16 21:26:26 +00:00
drh
88f975a7a4 Proposed changes that ensure that the WAL header is written prior to the 
first commit mark.

FossilOrigin-Name: 91d0437c0702904d27f0ef7b1b52d0797efe1826
 2011-12-16 19:34:36 +00:00
drh
eed4250598 Merge the fix for [a1fa75cbdd02] from the experimental branch. Also 
fix the persistent-wal mode feature of truncating the WAL on close so that
it always truncates the WAL to zero bytes.

FossilOrigin-Name: 09ccc4a1be7ba81890f10aac6623dd90dab4f990
 2011-12-16 15:38:52 +00:00
dan
f60b7f36c1 Experimental fix for [a1fa75cbdd]. 
FossilOrigin-Name: 6492af76ea6585a1b377d69751af930c0ccfe688
 2011-12-16 13:24:27 +00:00
drh
8dd4afadd8 In persistent WAL mode, truncate the WAL file to the size specified by the 
journal_size_limit pragma when disconnecting from the WAL.

FossilOrigin-Name: 9687b305c2320109a8649612181eecd2e0da7c7b
 2011-12-08 19:50:32 +00:00
drh
d515660523 Remove a couple of incorrect assert statements so that the test suite will 
run with -DSQLITE_DEFAULT_CACHE_SIZE=0.

FossilOrigin-Name: 87614b62ace530761e0e1170ec5840b212735ec6
 2011-11-12 16:46:55 +00:00
drh
b07028f71c Add assert() statements and eliminate needless variable assignments in order 
to get the clang scan-build utility to report zero problems against the
SQLite core.  Clang's static analysis did find one real problem - but it was
in the command-line shell, not in the SQLite core.

FossilOrigin-Name: 60fee9574b0125705787e33c16f116cf188c8323
 2011-10-14 21:49:18 +00:00
drh
f0b190d94c Prototype change for a new sqlite3_file_control() that will cause the 
-wal and -shm files to persist after the last database connection closes.

FossilOrigin-Name: e34c553bf04761e86f3bd72f91439c05886caa5c
 2011-07-26 16:03:07 +00:00
drh
5bf3934652 Fix a faulty assert() in the WAL-mode logic for read-only shared memory. 
FossilOrigin-Name: a13cfe616284f4ee86f0406e7b8fe8f9ba6e6990
 2011-06-02 17:24:49 +00:00
drh
66dfec8b7a Simplify the wal-readonly branch so that it does not require changes to 
anything other than os_unix.c and wal.c and a couple of new error codes.

FossilOrigin-Name: d6b4709de4d1f8af001f58938247f00a652a616e
 2011-06-01 20:01:49 +00:00
drh
bdd0f3bc0e Merge the latest trunk changes into the wal-readonly branch. 
FossilOrigin-Name: 2c6b5a28e3f6b7cb96b944d0a254f3707885f1ce
 2011-05-31 17:08:32 +00:00