database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-15 11:41:13 +03:00
Code Activity
16,171 Commits 1,608 Branches 185 Tags
20ae3264b81dfb246196c967b922f61ec2ac4e87
Commit Graph

632 Commits

Author SHA1 Message Date
drh
77a3fdc1b0 Add the SQLITE_MINIMUM_FILE_DESCRIPTOR compile-time option, for control over 
exactly which low-numbered file descriptors SQLite will use.

FossilOrigin-Name: ba5190534330a25722eeb7ea9c42da7a6d146014
 2013-08-30 14:24:12 +00:00
drh
5128d009c6 Improvements to the robust_open() logic in the unix VFS so that if an attempt 
is made to open a repository on file descriptors 0, 1, or 2, and blocking
that file descriptor by opening it on /dev/null fails, then the open will
fail.

FossilOrigin-Name: d9c018f8155ab48df8e0e02519bba50588fe49fc
 2013-08-30 06:20:23 +00:00
drh
35a0379a05 Change the unix VFS so that it refuses to open a database file using 
a file descriptor less than 3.

FossilOrigin-Name: 66dddda06898abbf97fe0ac6a10ce1527ca8605e
 2013-08-29 23:34:53 +00:00
drh
0c9a8e345e Never leave an open file descriptor pointing into the middle of the 
database file if the file descriptor number is 2 or less.

FossilOrigin-Name: 3426673e4659eb68dbd14a3e41d4620d748432db
 2013-08-29 21:26:26 +00:00
mistachkin
09b404419a Merge updates from trunk. 
FossilOrigin-Name: 9d6860098f96efc7ea60e2d6116fb7d0e2685a55
 2013-08-26 19:36:18 +00:00
dan
4dd5144366 Fix for builds with both SQLITE_OMIT_WAL and SQLITE_MAX_MMAP_SIZE=0 defined. 
FossilOrigin-Name: edd5dbdc3239fc88799b822941603fcc828ecbb6
 2013-08-26 14:30:25 +00:00
mistachkin
b5ca3cbcd3 Fix a couple compilation issues on Unix. 
FossilOrigin-Name: 25b029d8f32440a94ef8af45153423f6702d7431
 2013-08-24 01:12:03 +00:00
mistachkin
e98844f723 Unify the result of PRAGMA mmap_size when mmap support is disabled. 
FossilOrigin-Name: 032c31593d6f569842830cac6222362be68b2084
 2013-08-24 00:59:24 +00:00
drh
b01e5b59a2 Disable posix_fallocate() for all systems, all the time, unless the 
HAVE_POSIX_FALLOCATE compile-time macro is supplied.

FossilOrigin-Name: b674462243138fcee192ef05d434665e30c681c4
 2013-06-20 14:07:37 +00:00
drh
2daffdf0b5 Only default HAVE_POSIX_FALLOCATE on for linux, and then only if it is not 
previously defined.

FossilOrigin-Name: 2b2ade92788be623af6f57e37d98994be2cec142
 2013-06-19 14:49:14 +00:00
drh
7fb1b30118 Only enable posix_fallocate by default on linux and mac. 
FossilOrigin-Name: b9b30d4f9845d212e2d3206abbf2795099e5d71d
 2013-06-19 14:28:34 +00:00
drh
34e258c942 Cause the mmap_size PRAGMA to immediately change the mmap space if the 
database connection is already active.  In particular, reducing mmap_size
will immediately free up process address space.

FossilOrigin-Name: 761177927cb51e4f5e66061ca39cf37edbe8346b
 2013-05-23 01:40:53 +00:00
dan
ede01a97d3 In os_unix.c and os_win.c, initialize the default mmap-limit of a new file descriptor to the current global default mmap-limit, not the current global maximum allowable mmap-limit. 
FossilOrigin-Name: 1def4ea3a02afc19648f4cd928b247f8fa55da80
 2013-05-17 12:10:52 +00:00
drh
6cf9d8d63a Add assert()s to the implementation of xRead() in the built-in VFSes to 
verify that the offset parameter is always non-negative.

FossilOrigin-Name: cf5c3642247fdd34d87f0368594cd7b8f081636a
 2013-05-09 18:12:40 +00:00
dan
32c12fe2bb Minor fixes for compilation with SQLITE_OMIT_WAL defined. 
FossilOrigin-Name: b81e87e72b976e7157a53a50abc5422e2a6c4c39
 2013-05-02 17:37:31 +00:00
drh
c5797545de Untested fix for building on VxWorks. 
FossilOrigin-Name: f14d55cf358b0392d3b8cd61dc85f43a610a8edf
 2013-04-27 12:13:29 +00:00
dan
47a2b4a0b0 Avoid using posix_fallocate() in WAL mode, as it is not supported by all file-systems. 
FossilOrigin-Name: 9c7523dabf4aee609287732ce787c9b9a9087e7f
 2013-04-26 16:09:29 +00:00
drh
da8caa0b2d Fix harmless compiler warnings. 
FossilOrigin-Name: 1a1cf5aa86734c832d845e07780262a178188d56
 2013-04-22 23:38:50 +00:00
drh
9b4c59fa1b Refactoring the mmap interface. The controlling pragma is now "mmap_size" 
instead of "mmap_limit".  Also change SQLITE_CONFIG_MMAP_LIMIT and
SQLITE_FCNTL_MMAP_LIMIT to SQLITE_CONFIG_MMAP_SIZE and
SQLITE_FCNTL_MMAP_SIZE, respecctively.  
The default mmap_size is now always 0, meaning that
memory mapped I/O is off by default.  There is a new compile-time option
SQLITE_MAX_MMAP_SIZE that determines a hard upper bound on the mmap_size.
Setting SQLITE_MAX_MMAP_SIZE to zero disables the memory-mapped I/O logic
and causes it to be omitted from the build.  An extra argument is added
to SQLITE_CONFIG_MMAP_SIZE that can optionally lower the SQLITE_MAX_MMAP_SIZE
at start-time. The SQLITE_MAX_MMAP_SIZE is zero for platforms where we 
know that it does not work, meaning that it cannot be turned on by mistake
on those platforms.

FossilOrigin-Name: ea1404a10abd7f68e1f8e0708c8a3199d1f79665
 2013-04-15 17:03:42 +00:00
drh
fbc7e8845d Have the UNIX VFS issue warnings via sqlite3_log() if a database file is 
renamed or unlinked or linked to more than one name while the file is open.

FossilOrigin-Name: e238dcf9189c029fbdcf89339e21d9cdd8fbf2c5
 2013-04-11 01:16:15 +00:00
drh
6e0b6d52da Add extra #ifndef statements in os_unix.c and os_win.c to make sure the 
memory mapped I/O really is disabled when SQLITE_DISABLE_MMAP is set.

FossilOrigin-Name: c1e2523c9051782569291fff998140f7e0b70b6d
 2013-04-09 16:19:20 +00:00
dan
bcb8a868ce Handle the case in os_unix.c where SQLITE_FCNTL_MMAP_LIMIT requests that the mmap limit be set to a value smaller than the current mapping. 
FossilOrigin-Name: 360473493ec1a7094a2b1c5436f3b70914a6dfdd
 2013-04-08 15:30:41 +00:00
drh
34f7490311 Change the mmap_limit pragma to report the new limit, or to report the 
existing limit if called with no arguments.  Report the default mmap_limit
as part of PRAGMA compile_options.  Set the default mmmap_limit to 0 for
all systems other than linux, mac, windows, and solaris.

FossilOrigin-Name: 2d9f1327fe79e40435ce1e2594d7cd9a5aea0ef2
 2013-04-03 13:09:18 +00:00
drh
2b8246e3e2 Initialize the mmap_limit of temporary files to the configured mmap_limit. 
FossilOrigin-Name: 24bab7596bb7385981a5d331df5eeb05353547f7
 2013-04-03 10:50:02 +00:00
drh
85830a70c2 Fix the unix driver to check defined(_BSD_SOURCE) rather than just the plain 
_BSD_SOURCE macro.  This fixes the build for OpenBSD.

FossilOrigin-Name: 1dd42ef4144ee08fb4ee1676d934a56a0e34bac2
 2013-04-03 00:42:01 +00:00
dan
48ccef8059 Fix a resource leak in os_unix.c. 
FossilOrigin-Name: b29cda03fe4e8d8f5b5acbbea2d69f284a2bdf23
 2013-04-02 20:55:01 +00:00
dan
4ff7bc45c6 Add test cases for errors in mmap() or mremap() is os_unix.c. 
FossilOrigin-Name: 3098a3c1e7305033904a496ef534cb312a876fab
 2013-04-02 12:04:09 +00:00
drh
3861f546e3 Remove a debugging printf() accidently left in the previous check-in. 
FossilOrigin-Name: 8198cdd8ac5dcc1c677fffa869ac965186b96abf
 2013-04-01 22:42:48 +00:00
drh
a1f42c7c32 Add the SQLITE_CONFIG_MMAP_LIMIT configuration option for overriding the 
SQLITE_DEFAULT_MMAP_LIMIT compile-time setting.  Enhance "PRAGMA mmap_limit"
so that without a specific database name, it sets the limit on all database
files and changes the default for any future databases that might be added
using ATTACH.

FossilOrigin-Name: 78141d0a16dd1d56b575fccd149de7fa789cb06c
 2013-04-01 22:38:06 +00:00
dan
e6ecd6630d Attempt to emulate mremap() on non-Linux systems by allocating a second mapping immediately following the first in virtual memory. 
FossilOrigin-Name: 4d67433db8fb4754ae6b192945e479f3d7bad579
 2013-04-01 17:56:59 +00:00
drh
6c5696381e Fix a comment in os_unix.c. No code changes. 
FossilOrigin-Name: 72813b8ec924b91583c679668f7c4561dff82a02
 2013-03-26 18:48:11 +00:00
drh
0d0614bdc6 Memory-mapped I/O is now on by default. The "PRAGMA mmap_limit(N)" can be 
used to issue a hint to the VFS to limit mmap space to N bytes.  The VFS
is free to ignore that hint if desired.  However, if "PRAGMA mmap_limit(0)"
is used, xFetch is never called.

FossilOrigin-Name: 1b37c4effdd03aa2ea938a71b4f22ed27391689b
 2013-03-25 23:09:28 +00:00
drh
d1ab8065c1 Add munmap and mremap to the set of os interfaces that can be overloaded 
in os_unix.c.

FossilOrigin-Name: 8776047bd776bbf266eb9c3b56683badb84ae73e
 2013-03-25 20:50:25 +00:00
dan
b7e3a326fe Use mremap() on Linux. 
FossilOrigin-Name: 431aecc8600c29c203546e48d256510510238887
 2013-03-25 20:30:13 +00:00
drh
dee6554811 Merge all recent trunk changes into the experimental-mmap branch. 
FossilOrigin-Name: a607d63f0b6a3d3785e9385187d3e6b92e14fc70
 2013-03-25 19:57:26 +00:00
dan
893c0ffc29 Add a test that simulates an error in mmap(). 
FossilOrigin-Name: 6ec7367d8e98425f00eeb8215ca8964313c1d0b7
 2013-03-25 19:05:07 +00:00
dan
df737fe6f5 Change the signature of the xUnfetch method to "int (*xUnfetch)(sqlite3_file*, sqlite3_int64 iOfst, void *p)". 
FossilOrigin-Name: 115b830509e8f0aa9d5965c1e9cd4f2ed9d01938
 2013-03-25 17:00:24 +00:00
dan
aef49d7141 Remove unnecessary code to round the size of a memory mapping to 4KB from os_unix.c. Rename SQLITE_IOERR_MREMAP to SQLITE_IOERR_MMAP. Fix other small issues in os_unix.c. 
FossilOrigin-Name: dce35c01a5fe66d2970075b1e3f0376026485e4c
 2013-03-25 16:28:54 +00:00
dan
a1afc7425a Fix a case in the pager where an xFetch() reference was being leaked following an OOM error. 
FossilOrigin-Name: 5885ba6ce768658ec25b60747430d147b315b55c
 2013-03-25 13:50:49 +00:00
dan
f23da96636 Replace the sqlite3_io_methods.xMremap interface with sqlite3_io_methods.xFetch and xUnfetch. 
FossilOrigin-Name: 1431be95579160fb70408d43e17fc23c7b69ab4a
 2013-03-23 21:00:41 +00:00
dan
c00033125d Add a fix for the assert() statements added by the previous commit. 
FossilOrigin-Name: 19345416ed5e1ab5b0b35993b0b9069c2fb1683b
 2013-03-22 17:46:11 +00:00
dan
6101d50471 Add assert statements to os_unix.c to ensure that any mapped region of the database file is not being read or written using the xRead() or xWrite() methods. 
FossilOrigin-Name: 765615f9fba7c1765eb741cb98a09a28b464ee55
 2013-03-22 08:58:38 +00:00
mistachkin
48864df97d Many spelling fixes in comments. No changes to code. 
FossilOrigin-Name: 6f6e2d50941e444ebc83604daddcc034137a05b7
 2013-03-21 21:20:32 +00:00
dan
c71b45e619 Do not use the Linux mremap() call. Use the same strategy for xMremap() as on OSX instead. 
FossilOrigin-Name: 5ed8ad780c991d2ca44003ee84350fb5e95ad58e
 2013-03-21 14:47:47 +00:00
dan
d306e1a3a1 Optimize the xMremap method in os_unix.c some. 
FossilOrigin-Name: 9529ed88a71fee02fae72dc86f0669bd6856ff92
 2013-03-20 18:25:49 +00:00
dan
eb97b29345 When possible, use memory mapping when appending new pages to a database file. 
FossilOrigin-Name: 14135da3cdbafd699563a29608f32347cda28338
 2013-03-20 14:26:59 +00:00
dan
5d8a137218 Add the sqlite3_io_methods.xMremap() method to the VFS interface. Also "PRAGMA mmap_size". 
FossilOrigin-Name: 6183f1bd86ceed76d22d9762f3d7eb33262c62d1
 2013-03-19 19:28:06 +00:00
dan
b2d3de3bf4 Use mmap() to read from the database file in rollback mode. This branch is unix only for now. 
FossilOrigin-Name: 6f21d9cbf5d457e63a7282015a89ae785526cf6d
 2013-03-14 18:34:37 +00:00
drh
cfc176973e Fix an operator precedence problem on the [1d8086902e] check-in. 
FossilOrigin-Name: 4f5f3aebe81c3cbe539db3e33ec38fa3de47e90b
 2013-03-06 01:41:53 +00:00
dan
b83c21e600 Do not attempt to set the permissions on an existing journal or wal file. Do this only immediately after creating a new file (or opening one zero bytes in size). 
FossilOrigin-Name: 1d8086902ee96347491bce5ec04dc92ccd42efa1
 2013-03-05 15:27:34 +00:00