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8,116 Commits 1,607 Branches 185 Tags
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Commit Graph

357 Commits

Author SHA1 Message Date
drh
0dcb0a7d7b Fix a bug in the xCurrentTime() method of the os_unix.c VFS. 
FossilOrigin-Name: 551df11a5613e3edc6c5de44f0ac6abc2d0e6cdf
 2010-05-03 18:22:52 +00:00
dan
76ed3bc044 Fix a couple of errors in WAL code that can occur in an OOM situation. 
FossilOrigin-Name: 9d3f3736be42ef8ab48b099d4712e08dfca97873
 2010-05-03 17:18:24 +00:00
drh
1fbe0f2a8f Change the VFS definition so that all methods take a VFS object pointer as 
their first parameter.

FossilOrigin-Name: 43b5b07f0d996d7ef7426346b1792e9ca898f487
 2010-05-03 16:30:27 +00:00
drh
b7e8ea2015 Use VFS method xCurrentTimeInt64 instead of xCurrentTime when it is available. 
Provide an implementation of xCurrentTimeInt64 for os_unix.c.

FossilOrigin-Name: ab77b3ae6da3370d8bc3b2c9c0edc723b69f5a95
 2010-05-03 14:32:30 +00:00
drh
2d536e187f 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.

FossilOrigin-Name: 94dea5f9c11a68564220cec76ac3fae2ba90e907
 2010-05-01 20:17:30 +00:00
drh
f72a8751c9 Remove the xShmPush and xShmPull methods from the VFS. 
FossilOrigin-Name: 69e07fdbde5054593de948b76dfac157cf5d4058
 2010-05-01 18:23:08 +00:00
drh
bee6f4ebe2 Define an invariant to guarantee deadlock-free operation of SHM in os_unix.c 
and check that invariant with assert() statements.

FossilOrigin-Name: 6af2dca75b8139134ea394c1d71aefc6523f02e9
 2010-05-01 17:57:36 +00:00
drh
77b95a379c Rework mutexes on the SHM implemention for os_unix to avoid a deadlock during 
WAL recovery.

FossilOrigin-Name: 1a0f69bef2c489e81a3d4b910b426972e9ed4054
 2010-05-01 17:50:37 +00:00
dan
5cf53537a8 Support compile-time option SQLITE_OMIT_WAL, for building without WAL support. 
FossilOrigin-Name: 9b230c43dfa112e3e1589f9775926807bd36b36e
 2010-05-01 16:40:20 +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
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
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
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
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
drh
79e6c78ccc The first 6 WAL tests now work. It's a start. 
FossilOrigin-Name: a92c1851da10acf51e7f6f086b8a23bd731940b3
 2010-04-30 02:13:26 +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
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
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
drh
f2424c521b Begin moving WAL-specific I/O into the VFS. This checkin contains VFS 
infrastructure but it is untested and is not yet hooked up to the WAL.
The version number is bumped to 3.7.0 because of the VFS extension.

FossilOrigin-Name: f5e615c28c7035a7e6d896790b51cf9bc7371d5f
 2010-04-26 00:04:55 +00:00
dan
7c24610e64 Import experimental write-ahead-logging code. 
FossilOrigin-Name: 409d61baeb0a19d1700c973f16c8acef7b8506cd
 2010-04-12 19:00:29 +00:00
drh
f8b4d8c682 Adjustments to #ifdefs so that the #include of <sys/mount.h> is not included 
twice, because that confuses the amalgamation builder.

FossilOrigin-Name: 27413fc8dd52b754b4be9344a66bb9e0d752d48e
 2010-03-05 13:53:22 +00:00
drh
84a2bf67d8 Adjust some #ifdefs so that the build works on Mac both with and without 
SQLITE_ENABLE_LOCKING_STYLE.

FossilOrigin-Name: 0cc981f1ccc2c99b87eb968590ad18b2d3ebf37b
 2010-03-05 13:41:06 +00:00
drh
c05a9a8a57 Suppress harmless compiler warnings. 
FossilOrigin-Name: fc2c63ac78ba7d48fe3232f88093e980ea34eaa9
 2010-03-04 16:12:34 +00:00
drh
383d30f483 Avoid incorrect compiler warnings by doing a couple of needless 
variable initializations.

FossilOrigin-Name: 8f29490da62df07ea922b03cab52b6edd2669edb
 2010-02-26 13:07:37 +00:00
drh
413c3d36a2 Continuing improvements to error reporting and the sqlite3_log() routine. 
FossilOrigin-Name: edea3bb740ddd096a46e00678b59d465bb1e2903
 2010-02-23 20:11:56 +00:00
drh
9978c97ec5 Remove the obsolete sqlite3SafetyOn() mechanism. Add additional logging 
output for CORRUPT, and CANTOPEN errors.

FossilOrigin-Name: 7c4cca6d1a23a6d1591b62f58c3716a944969947
 2010-02-23 17:36:32 +00:00
dan
2b0ef4725f Change a C++ style comment in os_unix.c to use normal C style commenting. 
FossilOrigin-Name: 7a1933097f2a95bd495c1621fca99e8952a1b25a
 2010-02-16 12:18:47 +00:00
drh
309e6555a5 Make sure file descriptors are closed before unlinking in VxWorks. 
FossilOrigin-Name: f64b81f13de4875343c752e7183bf61032dc9594
 2010-02-05 18:00:26 +00:00
drh
7ed97b9de9 Move the Apple OS-X VFS changes into the trunk. 
FossilOrigin-Name: 571594bfbe89d9949bdb8b07712e96d0a3467c6e
 2010-01-20 13:07:21 +00:00
drh
9061ad10bc Fix a case in os_unix.c where two structures that might have uninitialized 
padding bytes are compared using memcmp().

FossilOrigin-Name: e02f25560216c7c96c5e1c7e71a8531650b3a96f
 2010-01-05 00:14:49 +00:00
drh
476bda7de4 In the OSTRACE debugging macros in os_unix.c, identify the VFS currently 
in use.

FossilOrigin-Name: 082b8da005128f47f63e95b6b702bf4517221b2a
 2009-12-04 14:25:18 +00:00
drh
3313b14f46 Fix the backup API so that a backup from an empty database to a non-empty 
database works.  Ticket [0bf974bdf9].  The only changes are in assert()
statements.

FossilOrigin-Name: ddb71cd9ed395804a13dc136bb7688a7627c798f
 2009-11-06 04:13:18 +00:00
drh
1d452e1de0 Fix compiler warnings. Better comments on some variables associated with 
LIKE/GLOB processing in the query planner.

FossilOrigin-Name: cfa2db0ff7a94e7f66c35f672ee41cadd45a6dd7
 2009-11-01 19:26:59 +00:00
drh
9b5db1dbd6 Use memcpy() rather than structure assignment so that memcmp() can later 
be used for comparison.  Ticket [8550ecca70]

FossilOrigin-Name: 56f609da4bfcc794e1f8573652dcde8515e87098
 2009-10-07 23:42:25 +00:00
drh
08da4bb16e Make sure the threadsOverrideEachOthersLocks variable is only referenced by 
linux systems on a threadsafe compile.

FossilOrigin-Name: e9d064bd9318c2bc9248df948f71fd30f24525eb
 2009-09-10 19:20:03 +00:00
dan
11b3879b18 Trying to open a transaction in one thread and close it in another is a misuse with LinuxThreads. Doing so may cause memory and file-descriptors to be leaked. Update an assert() and some test cases to account for this. 
FossilOrigin-Name: ef99eb57c536d82e7c19fd3d990c17793cc64a3f
 2009-09-09 18:46:52 +00:00
drh
3f022189dd Suppress some harmless compiler warnings. 
FossilOrigin-Name: f0c72a53c5d57d7487b48a06a40816153f47aaac
 2009-09-09 16:10:50 +00:00
drh
0c2694b744 Add the "unix-wfl" VFS that does whole-file locking in order to help NFS 
do better cache coherency.

FossilOrigin-Name: 2aeab80e5b84f5e94c5c99b4adeca805601c844b
 2009-09-03 16:23:44 +00:00
drh
2238dcccc7 Patch to the named semaphore locking mechanism used by VxWorks. 
FossilOrigin-Name: 609c5341bea16e4e8bcd15388b209c753ca9e0bb
 2009-08-27 17:56:20 +00:00
dan
15edd587fd Fix a bad interaction between "proxy-locking" and [http://www.sqlite.org/src/vdiff/aa6acfa8caa2ef59b4c16dfe42c4b5644da96905|aa6acfa8ca]. 
FossilOrigin-Name: 2a5c9e1dbf7f5f4b2081c964450a9305a4516f5b
 2009-08-25 05:57:47 +00:00
dan
6aa657f76b Fix some errors in [http://www.sqlite.org/src/vdiff/aa6acfa8caa2ef59b4c16dfe42c4b5644da96905|aa6acfa8ca]. 
FossilOrigin-Name: 82d1934a428a34c292a612fb67bbcea262990e0f
 2009-08-24 18:57:58 +00:00
dan
e946c3966a Fix a problem in os_unix.c where a malloc failure could lead to a leaked file descriptor. 
FossilOrigin-Name: aa6acfa8caa2ef59b4c16dfe42c4b5644da96905
 2009-08-22 11:39:46 +00:00
dan
08da86a68e When a database file is opened, try to find an unused file descriptor to reuse. This change affects unix (and other systems that use os_unix.c) only. Fix for cvstrac ticket [http://www.sqlite.org/cvstrac/tktview?tn=4018|#4018]. 
FossilOrigin-Name: 9b4d9ab62d687289837b13b07885e72cc3abe8a9
 2009-08-21 17:18:03 +00:00