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27,641 Commits 1,623 Branches 186 Tags
0d7f0e49a405484b8fa7fcad76f55b648ad8574b
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758 Commits

Author SHA1 Message Date
dan
8337da6678 Modify the unixShmLock() function to avoid iterating through the (possibly large) set of connections to the same database file. 
FossilOrigin-Name: e0faddf0dfc3a40b6b94408296dd781dd0264ecc9f2129ce4405438433fb00e0
 2020-08-28 19:27:15 +00:00
drh
14f38b3d0a Try to make SQLite easier to compiler for Mac Catalyst. See 
[https://sqlite.org/forum/forumpost/803387a1c5|forum post 803387a1c5].

FossilOrigin-Name: e1595a20d71e61957944cc2b634578968cda8fba08a1f1e75edba20dc9c6080b
 2020-08-19 23:51:54 +00:00
drh
0c52f5a2b0 Fix other potentiall pointer aliasing problems associated with subclassing 
of the sqlite3_file object for various VFS implementations.

FossilOrigin-Name: 270ac1a0f232d75537be40abae559004e950b992cb2c7e94cd6de66e96ae17bd
 2020-07-24 09:17:42 +00:00
dan
5289c51050 Change things so that if SQLITE_ENABLE_SETLK_TIMEOUT is defined as 2 instead of 1, all blocking locks are taken for a single millisecond and the default busy-handler invoked as normal. 
FossilOrigin-Name: ac381e6eb3c9284e65f7aad66d21bee1bca9ef4123684ccaf069b8a6d157a56d
 2020-06-29 18:22:21 +00:00
drh
067b92ba00 Extend the refactoring into extensions. Clean up stray newlines. 
FossilOrigin-Name: 7a876209a678a34c198b54ceef9e3c041f128a14dc73357f6a57cadadaa6cf7b
 2020-06-19 15:24:12 +00:00
drh
ccb2113a62 Refactoring various names. No changes in the resulting machine code. 
FossilOrigin-Name: 7bb08b1bfcf184e4b59c8c9028926a0052612ff6a6731914ccdb8dee07ea4a98
 2020-06-19 11:34:57 +00:00
dan
d31fcd4751 Expand upon a comment in os_unix.c. No changes to code. 
FossilOrigin-Name: 77933dc4dbe0e0af3b13a14293a8bd684edc5056f4ae9291c6f95d4433bf90ce
 2020-05-29 11:07:20 +00:00
dan
7a623e1d25 Fix a problem preventing building without SQLITE_ENABLE_SETLK_TIMEOUT defined. 
FossilOrigin-Name: 98eb54c6d83992886f17a00b6fc8998df230e3b5f45bafc6fae0d15a9ee5a4c6
 2020-05-06 20:45:11 +00:00
dan
7bb8b8a4f7 Add error code SQLITE_BUSY_TIMEOUT, used internally by the OS layer to indicate that a call to xShmLock() has failed due to timeout of a blocking lock. 
FossilOrigin-Name: f3ef9c7c2b4ba3de1057ad569f068b241d5f23e6629d8e0dacf85e57fd13b8aa
 2020-05-06 20:27:18 +00:00
dan
d0e6d13301 Add tests for running recovery when opening a write transaction or performing a checkpoint with blocking locks enabled. Fix some failing assert() statements. 
FossilOrigin-Name: d096ea3fe20f8af90f9e3f798fd0a69527b32ac8e208ade58b9d0af0e831f41b
 2020-05-06 17:18:57 +00:00
dan
58021b237a Unless upgrading an existing read transaction, have ENABLE_SETLK_TIMEOUT builds attempt to use a blocking lock when opening a write transaction on a wal mode database. 
FossilOrigin-Name: d6f819a9e6b35f3fd558bd93255a6a24ad690a0fa15a82b009ca9c641db983c6
 2020-05-05 20:30:07 +00:00
drh
3b9f154bb7 Do not use O_NOFOLLOW when opening a directory just to call fsync() on 
that directory.

FossilOrigin-Name: 2fc80ef16ce5878311ab88a0c64631813572ffbb71f75363b4619c9667e0926b
 2020-04-20 17:35:32 +00:00
dan
97ccc1bd11 Modifications to the way blocking locks are used in SQLITE_ENABLE_SETLK_TIMEOUT builds so that multiple processes or threads may not deadlock when operating on a single database. 
FossilOrigin-Name: c516027d5fd876b7d0bf566435667d554db29ded30ad6fc1165caa4a93d015a0
 2020-03-27 17:23:17 +00:00
drh
0ba3621592 Omit O_NOFOLLOW from the open() call when opening /dev/null, since /dev/null 
is a symlink on Solaris, we are told.

FossilOrigin-Name: 0c683c43a62fe25c6cb765e4a31556ec91a7c21af79349b3d7eeb13f73dd1cdc
 2020-02-13 13:45:04 +00:00
drh
09bee5743d Follow-up to check-in [c8c6dd0e6582ec91] - change the xAccess() method to 
return true if the file exists and it is anything other than a regular file,
or if it is a regular file with a non-zero file size.

FossilOrigin-Name: 8a39803ef8db4d8cb0d231e66299525fad4e61266ca29b3704aebb88df1c745b
 2019-12-27 13:30:46 +00:00
drh
96e8eebf96 In the xAccess() method of the unix VFS, return true if the named object 
is a directory, regardless of what stat() reports as the st_size for the
object.  Different filesystems report st_size differently for directories.
Problem reported on the mailing list by Stefan Brüns.

FossilOrigin-Name: c8c6dd0e6582ec9103d007b294c42bb1820be1fa7dab85d873b04e0b90571626
 2019-12-26 00:56:50 +00:00
drh
c398c65bee Revise the SQLITE_OPEN_NOFOLLOW so that it actually uses O_NOFOLLOW in the 
open() system call.  This backs out the SQLITE_ACCESS_SYMLINK value but adds
the new SQLITE_OK_SYMLINK return code from the xFullPathname method of 
sqlite3_vfs when that routine resolves symbolic links. O_NOFOLLOW is always
included in open() system calls for journal files.

FossilOrigin-Name: 6a64fb6a2da6c98f1e87b55ad5689967e1db4eae2e08345471d95e28cd567e0f
 2019-11-22 00:42:01 +00:00
drh
0933aad72c Add support for SQLITE_OPEN_NOFOLLOW. 
FossilOrigin-Name: cb79c828496a703f1410f61458ebc1e15a92a63412b36f51945b2b5a32ec6e88
 2019-11-18 17:46:38 +00:00
drh
e4079e1fc5 Allow compile-time options -DHAVE_GETHOSTUUID=0 and -DHAVE_GETHOSTUUID=1. 
FossilOrigin-Name: 3bcb9cc104e0265a600b03415ad955187fc6445ea8e46dc656412cba5bc1d621
 2019-09-27 16:33:27 +00:00
drh
edf8a7bf57 In the previous check-in, the variable should be openMode, not openFlags. 
FossilOrigin-Name: 77b0db22d6c7a031f332bfcf1c8fcd94e464de9f2396f0327ee761a30ebc8b60
 2019-09-25 11:49:36 +00:00
drh
1116b1785c In the unix VFS layer, do not attempt to chown() the journal to be the same 
as the database if running in 8+3 filename mode.  Also, update the comments
on the chown() attempt to be more precise.

FossilOrigin-Name: ab853724a7e01ca32167d294c3c80d6632e805bdf39b6d56db82226a00ad72dc
 2019-09-25 10:36:31 +00:00
drh
55220a6c70 Improved reuse of file descriptors for which close() is delayed to prevent 
clearly of posix advisory locks.

FossilOrigin-Name: 509c1ba26a4c12c63ecf04ddfa2f175eaf4dd9b96ab7be15faebd36deb0a0a31
 2019-08-06 20:55:06 +00:00
dan
ec9b2a132b Call ioctl() with the correct signature on both Android and stock Linux. 
FossilOrigin-Name: 68e12e063fe41bcd65cf8a120f838b9b1723ed803ea85240fe0f2145b78df2d7
 2019-07-15 07:58:28 +00:00
drh
8616cff6c8 Remove unreachable "break" statements to silence harmless compiler warnings 
from ICC.

FossilOrigin-Name: 0d7287e1bfdd5a392bf2fb17699e7cfd0b08bf61fab6cbf4b4bb347b3c4b4610
 2019-07-13 16:15:23 +00:00
drh
aadf8327be Back out the change to support Fuchsia, since it turns out fuchsia does not 
like dot-file locks.

FossilOrigin-Name: 1d801a3b2c48dc8a918d6da047bc877acf033d5f5c4e1d4b412ba7678ed6f8b3
 2019-03-15 19:08:23 +00:00
drh
6a1bfc9a6d Changes to the unix VFS that allegedly enable it to build of Fuchsia. 
We have no way of testing this.

FossilOrigin-Name: be21a6416d47ff7db995006a0422b745044d9b8bb5bad3c53342aa6e2e524771
 2019-02-20 19:20:16 +00:00
drh
f7f2a82aa0 On the first connection to a WAL-mode database that was not cleanly shut down 
and contains a left-over -shm file, truncate the -shm file to 3 bytes instead
of to 0 bytes. Avoiding a truncation to 0 means that system monitoring tools
can better detect if a process illegitimately tries to truncate a -shm file.
Such a rogue process might think it is being helpful by cleaning up old files,
but there is a race condition that can cause damage to the database.

FossilOrigin-Name: 90cf32cde072a305f30c75a71665d1f9e23e805c0a49f5306f015c056dd70f0c
 2018-10-11 13:51:48 +00:00
drh
b6c4d59e89 In the unix VFS, fix the heap shm allocator (used for unix-excl) 
so that it works even on systems where the page size is larger than 32KB.

FossilOrigin-Name: 7fbb083c5cf0948af3624b7538ffa086f77de27a3e84a7039ae7d6574f1a3a54
 2018-10-11 02:39:11 +00:00
drh
9b7e8e10f2 Add an additional assert() verifying mutex invariants on the 
unixShmSystemLock() routine in the unix VFS.

FossilOrigin-Name: cb1511065d5348c5b3015dc9d690fc5d519a14ffdfa7164bb552a4fa686ad142
 2018-10-02 20:16:41 +00:00
drh
8820c8d3ee Additional field name changes and commit fixes associated with shared-memory 
locking in the unix VFS, to improve maintainability.  No logic changes.

FossilOrigin-Name: 9280774a4bbc665d70f346d258768cbcca3e0e77791473aecfd7d0e87810ab31
 2018-10-02 19:58:08 +00:00
drh
24efa5444d Fix comments and refactor some names associated with shared-memory locking 
in the Unix VFS.  No logical changes.

FossilOrigin-Name: 3e9f1635271c92dce5324728b4ee1cc1a1856ec3c60b1b512a652c21e010e63e
 2018-10-02 19:36:40 +00:00
dan
16f39b6e5d Fix a problem building on Android with SQLITE_ENABLE_BATCH_ATOMIC_WRITE set. 
FossilOrigin-Name: e41e50fe7430cb79f67369fe81ac9938665bfc5db59c4faaf429ceb8ca03f584
 2018-09-18 19:40:18 +00:00
dan
a86acc2132 Fix an assert() in os_unix.c that is not true when using RBU. 
FossilOrigin-Name: 028ed8618af012b51104a06cc155b45d98bc4ff833d4431b9c38fd6851a74e82
 2018-09-12 20:32:19 +00:00
drh
cb4e4b00b3 Fix a harmless compiler warning in os_unix.c. 
FossilOrigin-Name: b9d1fb5d44e0a6ffc00ee987f178e448d7516e579beecdeeb387e69aef588921
 2018-09-06 19:36:29 +00:00
drh
3fcef1a3f9 Fix a harmless unused-variable compiler warning that only came up in certain 
compile-time configurations.

FossilOrigin-Name: 456842924bb33c0af8af29402f06e5f25b6791f698a0d12a080258b20b0cfb61
 2018-08-16 16:24:24 +00:00
drh
ef52b36a6b Stop requiring the global VFS mutex to access the unixInodeInfo.pUnused field. 
The unixInodeInfo mutex is sufficient.

FossilOrigin-Name: e3ea43dabf099dc2954c23d348638e7b2a8b9122d2994154bc649a2c09260c46
 2018-08-13 22:50:34 +00:00
drh
095908e1c7 Take extra precautions to ensure access to unixInodeInfo.pUnused is protected 
by all necessary mutexes.

FossilOrigin-Name: 8b1e0010b9e0b548a90087f4d25843d2b40f7e9551722ac587fa925d37b510c2
 2018-08-13 20:46:18 +00:00
drh
3e2c842e46 Fix an incorrect comment on the unix-nolock VFS object. No functional 
code changes.

FossilOrigin-Name: 90f7c193b42f0d8120a8e429bdea5e1cec5d3f45b901db8fc5a5c2ca3e69cba8
 2018-08-13 11:32:07 +00:00
drh
6886d6dbc4 Return an SQLITE_NOMEM error if the locking mutex fails to allocate. 
FossilOrigin-Name: 1c94834879be0601ac40ef3c4fb1b140f7737e89af7808f2f1db4ceb3daae19f
 2018-07-23 22:55:10 +00:00
drh
da6dc2404a First attempt at reducing mutex contention in the unix VFS by providing 
a separate mutex for each unixInodeInfo object.

FossilOrigin-Name: f69afaf00a659cd768a863c5f4a1d527f01187e037240da0ada527cb52c5afe8
 2018-07-23 21:10:37 +00:00
drh
789df14b11 Proposed fix for the use of posix_fallocate() so that it handles EINVAL 
returns correctly.

FossilOrigin-Name: ab3a5539db82814cafb832cdaebd1e14566139306453ef9cdba6b244a994fe0b
 2018-06-02 14:37:39 +00:00
drh
fd72563d0a Avoid a race condition that might cause a busy_timeout to last longer than 
it should.

FossilOrigin-Name: b81960561b47a1b49646f2f8870dd0684dc4ca7c0b9e11076fd713de66b75972
 2018-03-26 20:43:05 +00:00
drh
f0119b2e1b Add infrastructure to support for using F_SETLKW with a timeout on system 
that support that functionality.  Requires SQLITE_ENABLE_SETLK_TIMEOUT.

FossilOrigin-Name: 2e54a7433ece4eb27e71bda6f2d121d5aa46ddd5a481357d8543d1432aaad689
 2018-03-26 17:40:53 +00:00
drh
4f4e49a98b Remove an unnecessary memset(). 
FossilOrigin-Name: e7b7f5884a78630c6ba6a217c36247397e62f1928d4b480df929efcfc4a01893
 2018-02-21 00:48:02 +00:00
drh
26f625fbf4 Only try to use the geteuid() interface on unix if HAVE_FCHOWN is defined. 
This fixes the build for vxWorks, we are told.

FossilOrigin-Name: 38f654dc117bb11d61407327884b5c913cfaf920547bebc4ce5a4cf983e5c20e
 2018-02-19 16:34:31 +00:00
drh
561158937b Allocation the mutex used by the unix VFS only once at initialization, instead 
of every time it is needed.

FossilOrigin-Name: 5764dc160783f5c4017204b3e26a89d31240c868484ced8214c9ad872bd77bd4
 2018-02-05 16:39:12 +00:00
drh
a9be508a97 Fix an error in the setDeviceCharacteristics() procedure for the 
(unsupported) QNX code in os_unix.c.

FossilOrigin-Name: 8151913a3987f4dd2d6efee046727f5fa9b6f11d5d3867ea8f512c03a212ac2b
 2018-01-15 14:32:37 +00:00
dan
a688ca5ea9 Fix a problem in os_unix.c causing it to return SQLITE_CANTOPEN instead of 
SQLITE_READONLY_RECOVERY.

FossilOrigin-Name: 6a16f554f027ba268276b728588b5eaea837cbed85358a06a2f6da3b70e834ad
 2018-01-10 11:56:03 +00:00
dan
9898c4a0c4 In the os_unix.c implementation of xOpen(), do not return 
SQLITE_READONLY_DIRECTORY in cases where the file cannot be opened for reasons
other than a readonly directory, such as the process running out of file
descriptors.

FossilOrigin-Name: fa8b80bb967792de99808712ac03e37ace0f11eb8fbe444aacd3d19184c425ea
 2018-01-09 20:34:53 +00:00
drh
258dfe48cf An improved way of generating the SQLITE_READONLY_DIRECTORY error. 
The error message submitted to sqlite3_log() is still correct this way.

FossilOrigin-Name: 1c0aa919ee429cd194820ec9c54084563f39e63fd399b23f859fc6703b429b15
 2017-12-13 20:35:34 +00:00