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13,281 Commits 1,607 Branches 185 Tags
e89b291828b54933bf44f79c142c87061aacdced
Commit Graph

570 Commits

Author SHA1 Message Date
dan
15eac4e48a Fix a typo in unixCurrentTimeInt64() preventing compilation with NO_GETTOD defined. 
FossilOrigin-Name: 3df3e79b56821201b4f5ecd23f94d485745c48c3
 2010-11-22 17:26:07 +00:00
dan
a0c989dde7 Fix os_unix.c so that it works with the test_multiplex module. 
FossilOrigin-Name: 72ba3e368bec34532ec7b5e856a4daa7e1c8cccb
 2010-11-05 18:07:37 +00:00
drh
f7f55edb68 Do not embedded #if inside an assert() statement. 
Fix for check-in [dca8763872a]

FossilOrigin-Name: d7d4a94fc1209fd32d7c8e20ac83eb169b81ee25
 2010-10-05 18:22:47 +00:00
dan
0015739ae5 Fix an assert() failing on OSX. 
FossilOrigin-Name: dca8763872aa6244cb1a0f519167b360a6372d0d
 2010-10-05 11:33:15 +00:00
drh
e8b0c9b4ee Do not call gethostuuid() on MacOS 10.4 and earlier, since it is not 
supported there.

FossilOrigin-Name: 44deaaefeeb95827daeaf84aa5e205b456e75b40
 2010-09-25 14:13:17 +00:00
drh
37e8b5b2cc Fix the computation of the offset on the mmap() for the Nth shared memory 
region.  Because of the way shared memory is accessed, the old computation,
though wrong, still happened to always get the right answer.  Nevertheless,
it is good to do the computation correctly.

FossilOrigin-Name: 36397f62f2e3a62b4d5730b29c197449c6850cac
 2010-09-02 14:00:19 +00:00
drh
d56b121d10 Fix memory allocation in proxy locking so that it works with SQLITE_MEMDEBUG. 
FossilOrigin-Name: f854cbe06355dd3455b8af4ad6366949c412434e
 2010-08-11 06:14:15 +00:00
dan
502019c8bb Support FCNTL_CHUNK_SIZE on windows too. 
FossilOrigin-Name: a038688c991435967b935946c2283707820bb5da
 2010-07-28 14:26:17 +00:00
dan
6e09d69c92 Add experimental unix-only file-control to grow and truncate the database file by a configurable chunk size. 
FossilOrigin-Name: 7cf0e851d4c5e826ea22ed08291b7c91d7b1abc7
 2010-07-27 18:34:15 +00:00
dan
0668f5916e Fix a race condition in os_unix.c that may occur when one thread is opening a connection to a shared-memory block and another is either closing or locking the same shared-memory. 
FossilOrigin-Name: 3b7330c19a5327322068e9460018fe0152b8ac87
 2010-07-20 18:59:00 +00:00
drh
8ab58665bc Previous check-in [534aab837e] accidently reverted some 
changes from [a121cd80c5].  This check-in restores those changes.

FossilOrigin-Name: abff795f38e33d778c8dd494a601bc029237da9e
 2010-07-15 18:38:39 +00:00
drh
a4ced195db Optionally support shared-memory in /dev/shm or other tmpfs directory 
using an unsupported compile-time option.

FossilOrigin-Name: 534aab837e5a34fd58963ab2b505bfbb9da2e8ee
 2010-07-15 18:32:40 +00:00
dan
c74e4ef4c7 When creating a journal file on unix, attempt to create it with the same permissions as the associated database file. 
FossilOrigin-Name: a121cd80c5ac94e5977bc3164d2500e0ea132fed
 2010-07-15 14:59:37 +00:00
drh
f65bc9119c Fix a typo in a comment in os_unix.c. 
FossilOrigin-Name: e1e7312580a8b19825b0c52fa8af6c9382f99f22
 2010-07-14 20:51:34 +00:00
dan
ddb0ac4b9f On unix, try to create the *-wal and *-shm files with the same permissions as the associated database file. 
FossilOrigin-Name: e5d180eed245437b61bfb257ee01e2571c93afe7
 2010-07-14 14:48:58 +00:00
drh
5d4feffe7d Fix the unix driver to return an I/O error if unlink fails for any reason 
other than the file not existing in the first place.

FossilOrigin-Name: 90d73c66bfa880cdeb688b3016c8b1c58bfcf35f
 2010-07-14 01:45:22 +00:00
drh
e11fedc589 Change the name of the xShmClose VFS method to xShmUnmap, everywhere. 
FossilOrigin-Name: c2d27cf51d33e6f38bab37008d39074051f75274
 2010-07-14 00:14:30 +00:00
drh
6e1f482824 Tweaks to the new shared-memory interface design - mostly comment changes. 
FossilOrigin-Name: 6336de7aa96a6e1e68cc123e5d5f485d790d95a2
 2010-07-13 23:41:40 +00:00
dan
da9fe0c327 Changes so that the xShmOpen VFS method is no longer required. Its job can be done by the first call to xShmMap. Rename xShmClose to xShmUnmap. 
FossilOrigin-Name: f4780bde62c6c19146d2723c101540b8db898d38
 2010-07-13 18:44:03 +00:00
drh
2667be5e3f Remove the unused xRename() method from the sqlite3_vfs object. 
Add better documentation on the xCurrentTimeInt64() method.

FossilOrigin-Name: 51ec0e5432dd6849b83a3d969a018482eb3bb083
 2010-07-03 17:13:31 +00:00
drh
0ab216a6b4 Fix compiler warnings in the proxy locking code. 
FossilOrigin-Name: 26c7689cfedf03e65bcd51df68d128101ed2c1ec
 2010-07-02 17:10:40 +00:00
drh
ff82894faa Suppress various compiler warnings. 
FossilOrigin-Name: e82d008eaffb5522080cad6c69c1b194b78eadbd
 2010-06-26 21:34:06 +00:00
drh
bd9676c19e Adjust the shared-memory locking range to account for the new version number 
values in the wal-index header.

FossilOrigin-Name: a6dc0df304876b51cef5402b0e21330f10aabccf
 2010-06-23 17:58:38 +00:00
dan
248af428ea Merge latest trunk change. 
FossilOrigin-Name: f6d26e07b70965e332b1589804ca938593a5f432
 2010-06-21 06:00:15 +00:00
drh
19515c8da1 Fix an uninitialized variable in os_unix.c. 
FossilOrigin-Name: 822a0283c6bc1c75001f3d1c528a4ff89c6b039c
 2010-06-19 23:53:11 +00:00
drh
7234c6d6f6 Change the unix VFS to always allocate shared-memory using a file in the 
same directory as the database.  Otherwise, a chroot might cause different
processes to use different shared memory files resulting in database
corruption.

FossilOrigin-Name: 2241788bc85fbc48e9cfecb95fe0a858338e37cb
 2010-06-19 15:10:09 +00:00
dan
83acd423a1 Change the implementation of the unix implementation of xAccess() so that it returns 0 (does not exist) to an SQLITE_ACCESS_EXISTS query on a file that exists but is zero bytes in size. 
FossilOrigin-Name: 077b0e5bcd849130c8df373fc2134c4b44351882
 2010-06-18 11:10:06 +00:00
dan
b0ac3e3a17 Fix a memory leak that can occur in os_unix.c if an IO error occurs within the xUnlock method. 
FossilOrigin-Name: 6c5c04eea1f0e8d61883ee8675c249fbf895dc01
 2010-06-16 10:55:42 +00:00
drh
6b017cc6d4 Move the xShmMap method to in between xShmLock and xShmBarrier, since it seems 
to fit in there logically.

FossilOrigin-Name: 58dfd83d8b7905391e2a06bb918ffa209c6de6b5
 2010-06-14 18:01:46 +00:00
dan
9785fc9510 Add the new xShmMap (formerly xShmPage) to os_win.c. 
FossilOrigin-Name: 13e7a8242206bca4b5bf356ef074e66474d39609
 2010-06-14 16:16:33 +00:00
dan
188019153d Remove xShmGet/Size/Release from the sqlite3_vfs structure. Change the name of xShmPage to xShmMap. Remove some code that is now unused from os_unix.c and some of the test VFS implementations. 
FossilOrigin-Name: fc0cabc15c97dde6a852b4f07df6d30f1d2c04bc
 2010-06-14 14:07:50 +00:00
dan
13a3cb82ce Experimental change to the xShmXXX parts of the VFS interface. 
FossilOrigin-Name: ca68472db01c14a899892007d1cbaff5e86ae193
 2010-06-11 19:04:21 +00:00
dan
7df6c2c04b In os_unix.c, call munmap() to unmap a shared-memory region prior to closing the associated file descriptor. 
FossilOrigin-Name: 95cc976f1520bdaedd8f93b0e9fbef94e4e2c8cc
 2010-06-07 19:26:54 +00:00
drh
c11895b808 Make sure the directory used by os_unix.c for shared-memory files is always 
the same, regardless of individual client permissions and environment
variable settings.

FossilOrigin-Name: f97bd520f06a16c61ccdd9ebeda7e138896b9ac2
 2010-06-02 15:59:05 +00:00
drh
aab4c02e47 Changes to make WAL more robust against SHM locking failures and OOM errors. 
FossilOrigin-Name: ebf4041383c3cdddb5861960359abd209d4a1028
 2010-06-02 14:45:51 +00:00
drh
8b3cf82ddf The shared-memory used by WAL on linux now really is shared memory in /dev/shm. 
On other unix flavors, the file is in a temporary directory rather than in the
same directory as the database.

FossilOrigin-Name: fc18c4aadb908c3b6f9b6481a2efca6a0daadc64
 2010-06-01 21:02:51 +00:00
dan
72bcac9ca7 Do not hold the shared-memory mutex in os_unix.c if returning NULL. 
FossilOrigin-Name: 9622dd468c8914262e9d8bd8dbca9e22ec6ee75c
 2010-06-01 11:08:56 +00:00
drh
b29ad8502e Fix os_unix.c so that it will compile and build on a Mac. 
FossilOrigin-Name: bc707c83e5f9849d9d201d695d0d071ca9ed93cb
 2010-06-01 00:03:57 +00:00
drh
61e4acecf4 Fix issues with locking_mode=EXCLUSIVE in WAL. 
FossilOrigin-Name: 8deba0cebd135a18da68530fab9e7d19dc21ddcb
 2010-05-31 20:28:37 +00:00
drh
15d6809222 Fix an inconsistent #ifdef in wal.c. Fix os_unix.c so that it does not allow 
moving an SHM lock directly exclusive to shared without going through unlocked.

FossilOrigin-Name: 552658da2845c2323167b6c7db6e5c00090f280c
 2010-05-31 16:56:14 +00:00
drh
20e1f08e0b Get the new xShmLock interface design working on os_win.c. 
FossilOrigin-Name: 149a7082e266edf0dc25c23823a9e240f5285215
 2010-05-31 16:10:12 +00:00
drh
4222441dee Remove the tests that enable tracing based on the existance of the "vdbe_*" 
files when in SQLITE_DEBUG mode.

FossilOrigin-Name: cdbb4e7ca7ec27e7e80dd66529d9d565f547887a
 2010-05-31 14:28:25 +00:00
drh
c99597ca10 WAL runs but quickly deadlocks. 
FossilOrigin-Name: ace58acbf1fad13d2be96cafebc3a22875098d03
 2010-05-31 01:41:15 +00:00
drh
73b64e4d2e Initial code for incremental checkpoint in WAL mode. This check-in compiles 
on unix and runs as long as you do not engage WAL mode.  WAL mode crashes and
burns.  Consider this check-in a baseline implementation for getting the new
capability up and running.

FossilOrigin-Name: ef3ba7a17ff90674d702e5694b9e792851ab6998
 2010-05-30 19:55:15 +00:00
drh
026ac28b28 Change the semantics of xShmGet() such that it will never increase the size 
of shared memory.  xShmSize() must be used to grow the size of shared memory.
A shared memory segment size cannot be shrunk (except by dropping it).

FossilOrigin-Name: 72de00731245277b2209103ec0a76e3d4f56530e
 2010-05-26 15:06:38 +00:00
drh
1b78eaf0ba Update header comments in wal.c to correctly describe the WAL file format. 
Update the locking region offsets in os_unix.c and os_win.c and add assert()
statement to verify that the locking region offsets are correct.

FossilOrigin-Name: 40030c0739f821ea8ee188c28c579507f10448bc
 2010-05-25 13:40:03 +00:00
drh
c527669df5 Comment out the SQLITE_FCNTL_SIZE_HINT from os_unix.c since it does not 
seem to provide any performance gain there.

FossilOrigin-Name: 7d01309da658d6b658c1b2e53bbdc5112fb0a4d9
 2010-05-21 18:24:06 +00:00
drh
286a288493 Add a new xShmBarrier method to the VFS - a shared-memory fence operation. 
Implement the same in both unix and win32.  Use it to make the WAL subsystem
more robust.

FossilOrigin-Name: 1bd011c9fed5ef29fb616b4d0a52df3b82221b1f
 2010-05-20 23:51:06 +00:00
drh
9ff27ecdb2 Add the SQLITE_FCNTL_SIZE_HINT operator to sqlite3_file_control() and use it 
to give the VFS hints about the ultimate size of a database file when the
file is growing.

FossilOrigin-Name: 2b7e3b4a30d6a7c4a8a4b8e7dd2ed728b565c96d
 2010-05-19 19:26:05 +00:00
drh
5939f44375 Mark the shared-memory in the WAL implementation as volatile. 
FossilOrigin-Name: 0a6787908e989bd5e6af25acbdc59ebc8fa61d6d
 2010-05-18 13:27:12 +00:00