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d80b233850
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7683 Commits

Author SHA1 Message Date
drh
d80b233850 Do not allow journal_mode=WAL if the underlying VFS does not support xShmOpen. 
FossilOrigin-Name: d1fcccecdc8e9ac5d0d022914e51c545f4e1b04f
 2010-05-01 00:59:37 +00:00
drh
27d52b2b19 Merge in changes from the trunk. 
FossilOrigin-Name: 76bf0eee1fd4003a3f1c39922f8f059611d41dd0
 2010-04-30 22:28:06 +00:00
drh
be837bddad Avoid assertion faults in queries using indices with redundant columns. 
Ticket [3dbdcdb14e7f41].

FossilOrigin-Name: 946e06cd2a2cc209b0786b7e9d28c0746320d646
 2010-04-30 21:03:24 +00:00
drh
6dea3248ae 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.

FossilOrigin-Name: 8660cda6f8ef43bd276897ef3b5fc2376b5684dc
 2010-04-30 17:47:51 +00:00
drh
1b48aa49a4 Remove some obsolete debugging parameters. 
FossilOrigin-Name: a012aed498bf41a5f6f3006182b0c4c2ab0fe1bb
 2010-04-30 17:28:35 +00:00
dan
fe05aa144c Fix a problem with resizing the wal-index mapping after the mapping has been extended by an external process. 
FossilOrigin-Name: 79d356fea6008a8adf8ebd4906571375f3cf5213
 2010-04-30 17:05:23 +00:00
dan
c9d53dbe5a Fix a problem with calculating the required size of the wal-index when appending frames. 
FossilOrigin-Name: 9526b11130f3ed2f5227386a26263c767214603a
 2010-04-30 16:50:00 +00:00
drh
400df2ea70 In the debugging output for SHM-LOCK in os_unix.c, use symbolic names 
for the lock states rather than raw numbers.

FossilOrigin-Name: 2afc33de2b2012d034fb0d2057a5a45e304516ca
 2010-04-30 16:48:19 +00:00
dan
43a56b812c 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 
FossilOrigin-Name: 90119fecbce06c8db82194dfd9d5045be29b1cda
 2010-04-30 16:41:53 +00:00
dan
78daa5a7d9 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. 
FossilOrigin-Name: 55f5af5e174df7a28deeb36faa51138926669897
 2010-04-30 16:38:59 +00:00
dan
30c8629e67 Reapply commits [837d82a929] and [c05e7dca17] that were accidentally overwritten. 
FossilOrigin-Name: 598de52700ba13e3228289220a74fc62073c62d4
 2010-04-30 16:24:46 +00:00
dan
6ddb4bf938 Add xShmXXX() methods to the test VFS in test_devsym.test. 
FossilOrigin-Name: 1d20342424b452ea96aaf161de1f98f26a9155a0
 2010-04-30 16:19:39 +00:00
drh
49156b2b5e Correctly record the fact that the SHM lock reached PENDING if it did so 
but failed to reach CHECKPOINT.

FossilOrigin-Name: d9250e84ac1fc6590f8670e1d801630650c7846a
 2010-04-30 16:12:04 +00:00
drh
d749084ad0 Fix a couple uninitialized variables in the xShmLock method of the unix VFS. 
Improved debugging logic for xShmLock.

FossilOrigin-Name: 69567c5fca9e30b7660e6f56350be929c3890d7e
 2010-04-30 15:54:46 +00:00
dan
a7ad518ef0 When closing a WAL connection, attempt an exclusive lock on the database file. If the lock is obtained, checkpoint the database and delete the wal and wal-index files. 
FossilOrigin-Name: c05e7dca172719f33e245c08d0c0e8ab47e5a537
 2010-04-30 15:49:27 +00:00
dan
6045461eee If a reader attempts to upgrade to a writer, but is not reading the most recent database snapshot, return SQLITE_BUSY. 
FossilOrigin-Name: 837d82a92977cbfa0963411daf8160d286a7ed32
 2010-04-30 15:24:43 +00:00
drh
5530b764a8 Separate the concepts of underlying storage size and mapped size in the 
VFS shared-memory implementation.

FossilOrigin-Name: 4cbe49f13fed288f94ff305bcfd99df907bf7baf
 2010-04-30 14:39:50 +00:00
dan
87bfb51ef8 Add a missing walIndexUnmap() call to the checkpoint code. Change a couple of SQLITE_CANTOPEN constants to SQLITE_CANTOPEN_BKPT. 
FossilOrigin-Name: 1f9e8c5c27ae2c68bc01d8e2bb2c662be7b3f161
 2010-04-30 11:43:28 +00:00
dan
1bc6171c23 Fix an assert() in sqlite3WalRead(). 
FossilOrigin-Name: 2e7a0050e192dd197d4db92393ab120897c14836
 2010-04-30 10:24:54 +00:00
dan
e93808dde2 Add missing mutexes to unixShmClose(). 
FossilOrigin-Name: a4741cb54dd5e753d48fd05ac9dbe27ee4aa1ec0
 2010-04-30 10:06:09 +00:00
dan
4c97b53425 Fix a couple of assert() statements in os_unix.c and wal.c. Combine sqlite3WalIsDirty() with sqlite3WalUndo(). 
FossilOrigin-Name: a8f958be804ee05c4137b3cd110db344713af5f2
 2010-04-30 09:52:17 +00:00
dan
ba51590bcd Add a missing walIndexUnmap() to sqlite3WalSnapshotOpen(). 
FossilOrigin-Name: 72b95fde15dae56390dc8d4168fb2757447e289e
 2010-04-30 09:32:06 +00:00
dan
5047af405b Merge latest bugfix into wal branch. 
FossilOrigin-Name: 265e66e6984c32999bf93981e3b1d19887dfe599
 2010-04-30 06:02:30 +00:00
drh
79e6c78ccc The first 6 WAL tests now work. It's a start. 
FossilOrigin-Name: a92c1851da10acf51e7f6f086b8a23bd731940b3
 2010-04-30 02:13:26 +00:00
dan
6908343c65 Zero the "immediate FK constraint counter" associated with a statement object when sqlite3_reset() is called. Fix for [c39ff61c43]. 
FossilOrigin-Name: f660be615a0c1f4641782a83744533f5d3119218
 2010-04-29 22:57:56 +00:00
drh
7ed91f2344 Refactor wal.c to use the VFS. This check-in compiles and links and works 
ok as long as you leave WAL turned off, but WAL does not work.

FossilOrigin-Name: 62db5fa3b61be885b2d94e9b9ce3877b2c588350
 2010-04-29 22:34:07 +00:00
drh
31cbbbad1c Untested implementation of the shared-memory dead-man-switch. 
FossilOrigin-Name: 706611283ea2575c2942543391026b36061cfc1c
 2010-04-29 16:40:51 +00:00
drh
7b6944047e Progress towards a VFS that will support WAL. Locking code is in place 
but is untested.  Still no support for the DMS.

FossilOrigin-Name: 1bde41cf081570ad257f927b641e752dff4ed014
 2010-04-29 15:17:48 +00:00
dan
185cca609b Close all open database connections at the end of wal.test. 
FossilOrigin-Name: 3cc55a7568daa3796483f632e33478969e381cf5
 2010-04-29 14:58:53 +00:00
dan
31c03907fd Fix a but in the WAL checkpoint code causing SQLite to use an inconsistent cache in a subsequent transaction. 
FossilOrigin-Name: d1cadeed4eea20d8892726cc8c69f4f3f57d0cd4
 2010-04-29 14:51:33 +00:00
dan
b4e3a6f72f Add tests to walthread.test. 
FossilOrigin-Name: 9e891e7543ea4d7dee76deb2456af940f4cac49b
 2010-04-29 08:47:28 +00:00
dan
e45d442692 Add a test to walthread.test for changing between WAL and rollback modes. 
FossilOrigin-Name: da229e44bd4a5d512261da05958d560808c9889f
 2010-04-28 18:17:23 +00:00
dan
f032f5362e Merge two "wal" 
leaves.

FossilOrigin-Name: 13d2d5a66e9eaa81aa6314354201ee1fbd2b3824
 2010-04-28 17:49:57 +00:00
dan
5e0ce87a3f Change walthread.test so that tests can be run with either multiple threads or multiple processes. 
FossilOrigin-Name: 25f85f68723e56c18e44b094d85f67b99912dc86
 2010-04-28 17:48:44 +00:00
drh
9beb1584bd Changes to the interface design for the xShmLock method of the VFS. 
FossilOrigin-Name: 348409de26eafe12f5cb1236e8e167a4183d4051
 2010-04-28 17:21:33 +00:00
drh
833bf968e3 Rename the sqlite3_log_hook() to sqlite3_wal_hook(). Added comments to 
wal.h.

FossilOrigin-Name: bbc385111b19071e20fe963fab814262c815b3e9
 2010-04-28 14:42:19 +00:00
dan
4b64c1e365 Merge two "wal" leaves. 
FossilOrigin-Name: 8c2d43babd61fe2225d5c402174253f412604092
 2010-04-27 18:49:54 +00:00
dan
8b348af860 Add a test to check that a checkpointer releases its locks before returning, even if it has been prevented by a conflicting lock from checkpointing the database. 
Add a test to check that a checkpointer releases its locks before returning, even if it has been prevented by a conflicting lock from checkpointing the database.

FossilOrigin-Name: be44349d2b790fb470fcc9fb6a12e8b1076dc645
 2010-04-27 18:43:16 +00:00
dan
8b5444bfae Fix a problem with identifying a corrupt database in WAL mode. 
FossilOrigin-Name: c8658da44671e9c43c90ee4857bbe82c55d40f25
 2010-04-27 14:37:47 +00:00
drh
af75c8695b Add the xShmRelease() method to the VFS. The os_unix.c implementation of 
the shared memory logic is still non-functional.

FossilOrigin-Name: ed715b47c5f7657fbf901805981867898054b14d
 2010-04-27 11:49:27 +00:00
dan
e106de6317 Run trans.test and avtrans.test as part of the "wal" permutation. 
FossilOrigin-Name: c8893310510148f7e71ede5691606b6fc1c3df4d
 2010-04-27 06:49:34 +00:00
dan
31f98fc8e4 Fix a problem that occurs when one process causes the log-summary file to grow and then a second process attempts to read the database. 
FossilOrigin-Name: b51a5f8bc660616aa264025dd7ad4bdab458814b
 2010-04-27 05:42:32 +00:00
drh
29d4beccc0 Merge in recent changes from the trunk 
FossilOrigin-Name: 7a0ac682c3bffcb345321fe97434563350ac90f9
 2010-04-27 01:56:21 +00:00
drh
8c6f666b26 Optimization: Convert an ORDER BY clause into a no-op if the query also 
contains a GROUP BY clause that will force the same output order.

FossilOrigin-Name: ca9d86baf70f210d331ce93102177c8005c494cb
 2010-04-26 19:17:26 +00:00
dan
e180c296ea Do not attempt to set journal_mode=wal on :memory: or temp file databases. 
FossilOrigin-Name: 30d0134454734fd9335896372c30a903e9adcc64
 2010-04-26 17:42:56 +00:00
drh
93791ea0ba Change the default_cache_size pragma to always store a positive value. 
FossilOrigin-Name: 36fb2cae75b5dfe1fe818895f03c0b4f4190a722
 2010-04-26 17:36:35 +00:00
drh
c6d2b4a365 Identify the SQLite version meta-value entry in the db-header output of 
showdb.

FossilOrigin-Name: 245d934b72cbc6e897193e7892195b6561995939
 2010-04-26 17:30:52 +00:00
dan
4cd78b4d89 Fixes for problems with small caches and SAVEPOINT rollback in WAL mode. 
FossilOrigin-Name: 6a944f028d4a070bef29e1fbc6fbef481ebcd34c
 2010-04-26 16:57:10 +00:00
drh
7ecc14761e Further enhancements to the showdb utility: A page number followed by "b" 
causes a btree decoding to occur on the page.

FossilOrigin-Name: 2ff824e58ce8b8f605c809ac960dcbfc51c30e30
 2010-04-26 16:47:12 +00:00
drh
562cedb185 Enhancements to the showdb.c utility program. Automatically detect the 
page size and adjust the display accordingly.  Add the "dbheader" display
option.

FossilOrigin-Name: 23eb408b5d08b89b41aaf245a7be8e235f30af8a
 2010-04-26 15:44:07 +00:00