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20a9ed1dc6fd63573e49328d27e955969f18470d
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736 Commits

Author SHA1 Message Date
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
drh
a803a2cd98 New result code SQLITE_READONLY_DIRECTORY is returned when an attempt is 
made to write on a database file that is in a read-only directory and hence
the journal file could not be created.  This situation formerly returned
SQLITE_CANTOPEN, which less helpful.

FossilOrigin-Name: 3ec73c38f878d73d278fce99ba10c708dcc475835774f1e17769ff7315be6d7c
 2017-12-13 20:02:29 +00:00
drh
37874b5f74 Minor enhancement to two assert() statements in the default VFSes. 
FossilOrigin-Name: 9cede8a83ca4cd88d504050115e1e89e7b3d3cd3cb2ffb5b8961e311a23ff5e2
 2017-12-13 10:11:09 +00:00
drh
62be1fab6a Fix a harmless API signature mismatch in the unix VFS. 
FossilOrigin-Name: bab9de7fdda20a724f7c21ec2c25b488ece08b685f1e4fd15c9e73b6b4a0133a
 2017-12-09 01:02:33 +00:00
drh
7e45e3a5d7 Change the name of SQLITE_READONLY_CANTLOCK to SQLITE_READONLY_CANTINIT. 
FossilOrigin-Name: 6d7f94faa7e6de62f82bc6cac019508a9c1ffd6fa1d14f52fa93e9c06afdd32f
 2017-11-08 17:32:12 +00:00
dan
f12ba66cf8 On unix, if the *-shm file cannot be opened for read/write access, open it 
read-only and proceed as if the readonly_shm=1 URI option were specified.

FossilOrigin-Name: ba718754fa5ab8596cb84b751051de98afa2706fe6c5df39ad6d925d790719ee
 2017-11-07 15:43:52 +00:00
dan
92c02da33e If a readonly_shm connection cannot map the *-shm file because no other 
process is holding the DMS lock, have it read from the database file only,
ignoring any content in the wal file.

FossilOrigin-Name: ce5d13c2de69b73378637d4f7e109714f7cd17bf1d1ad995e0be442d517ed1b3
 2017-11-01 20:59:28 +00:00
dan
176b2a916b Fix a race condition in os_unix.c that might allow a client to use a *-shm 
file corrupted by a power failure if another client fails between locking the
*-shm file and truncating it to zero bytes.

FossilOrigin-Name: d655bfabd110999b6808073c334869c5b6a8334df56811df883e47e56d3f1cbb
 2017-11-01 06:59:19 +00:00
dan
ab04eff809 Fix an error in the previous commit on this branch. 
FossilOrigin-Name: f71dfee06ce1e0eee760cfca19482bdec7729d6c7d28f10f4cfd21e1f92a04b0
 2017-10-26 17:34:50 +00:00
dan
9181ae990a Instead of extra locks, use F_GETLK to ensure that readonly_shm clients cannot 
connect to a wal-mode database if there are no writers.

FossilOrigin-Name: 5492f457dc7cc5c416de4b4e61e84bd2f10b4e6ce54011b7a60feb47f629c923
 2017-10-26 17:05:22 +00:00
drh
b5039fb7d3 Use extra locks to prevent a readonly_shm=1 process from connecting to a 
WAL-mode database if there are no writers.

FossilOrigin-Name: 35d979082b4ab36d6a8975f8f15a50e69f46b72a173164d2b353377b9f758bd8
 2017-10-25 23:28:13 +00:00
drh
b5d013edd1 Do not reference the ioctl() system call in the unix backend unless it 
is actually needed by the Batch Atomic Write extension.  This should allow
the build to work on VxWorks.

FossilOrigin-Name: adfa7ed2de3e833fff65935455e71236a59602aaf7b97ece667ab300dca9f673
 2017-10-25 16:14:12 +00:00
dan
3ed0f1c936 Add another test case for the problem fixed by the previous commit. 
FossilOrigin-Name: 1a7e0b61c8a6bdd3ed105b9bc8a3732668fd7a897d2ed16c99445498e3c87089
 2017-09-14 21:12:07 +00:00
dan
629ec14abc Avoid an out-of-bounds read that can be caused by a specially constructed 
journal file.

FossilOrigin-Name: cf5bf42cad6e019a38dc0a36ff1f53ada619eef5259e175c3554a16669e03202
 2017-09-14 20:41:17 +00:00
drh
2e2338101a Fix error tests in seldom-used compile-time branches of the unix backend. 
FossilOrigin-Name: 885c2b44a44f8d054014e4079b2cac8279c11d13206d5b5215189ef75b9c5254
 2017-08-22 15:21:54 +00:00
drh
c68886bb9e For the unix VFS, avoid an unnecessary stat() system call prior to opening 
any file in the common case where there are no unused file descriptors.

FossilOrigin-Name: 3075cfa07489eaf13cb9a2760e2391e79dd73181fe1730fae7bdcd6ad66d2a1f
 2017-08-18 16:09:52 +00:00
mistachkin
e35395a45a On Windows, avoid casting a value larger than 2^31 to a (SIZE_T) on systems where it is a 32-bit type. 
FossilOrigin-Name: f08d63b413601b22726e8b96ff8eb779857321b9df30db0333f71e50ffb5077d
 2017-08-07 19:06:54 +00:00
dan
089df50687 Fix a problem with handling SQLITE_FCNTL_MMAP_SIZE requests with a negative 
parameter in os_unix.c.

FossilOrigin-Name: 4249fcf7b0c0233f9b3ba5139702738d5221c5309240e6e91dc139eff59471fe
 2017-08-07 18:54:10 +00:00
dan
43c1e622cd Avoid casting a value larger than 2^31 to a (size_t) on systems where it 
is a 32-bit type.

FossilOrigin-Name: 46c3085dcad6372ac20eff499e17fe11680fdf4adb9186bf8b12221a5047e485
 2017-08-07 18:13:28 +00:00
drh
344f763f72 Add new extended error codes for the atomic write file-controls. 
FossilOrigin-Name: 94a2004756ffe027b3495be91366750135c294a9c460edc9a1b4b9422dcc33bd
 2017-07-28 13:18:35 +00:00
dan
77b4f528fa Do not set device-capabilities flags SEQUENTIAL or SAFE_APPEND for f2fs 
file-systems.

FossilOrigin-Name: 4477e60cd801dab7a8aec12c5bc5e81e774bedbfed38abbc8eb8b37336141a44
 2017-07-27 18:34:00 +00:00
drh
d76dba7eb5 Omit unused batch-atomic-write code if SQLITE_ENABLE_BATCH_ATOMIC_WRITE is 
not defined.

FossilOrigin-Name: a89b62c4966cd297326e8712da40e0962d2328d7ba1f201d5abcec911eeef347
 2017-07-22 16:00:34 +00:00
dan
9d70954094 Use ioctl(F2FS_IOC_GET_FEATURES) to determine whether or not atomic batch 
writes are available.

FossilOrigin-Name: 532bbf1f2b1028db4e581c756533aa660e482d833caaed4eafb299ef9b584f3a
 2017-07-21 21:06:24 +00:00