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* Have the UNIX VFS issue warnings via sqlite3_log() if a database file isdrh2013-04-11
| | | | | renamed or unlinked or linked to more than one name while the file is open. FossilOrigin-Name: e238dcf9189c029fbdcf89339e21d9cdd8fbf2c5
* Add extra #ifndef statements in os_unix.c and os_win.c to make sure thedrh2013-04-09
| | | | | memory mapped I/O really is disabled when SQLITE_DISABLE_MMAP is set. FossilOrigin-Name: c1e2523c9051782569291fff998140f7e0b70b6d
* Handle the case in os_unix.c where SQLITE_FCNTL_MMAP_LIMIT requests that the ↵dan2013-04-08
| | | | | mmap limit be set to a value smaller than the current mapping. FossilOrigin-Name: 360473493ec1a7094a2b1c5436f3b70914a6dfdd
* Change the mmap_limit pragma to report the new limit, or to report thedrh2013-04-03
| | | | | | | 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
* Initialize the mmap_limit of temporary files to the configured mmap_limit.drh2013-04-03
| | | FossilOrigin-Name: 24bab7596bb7385981a5d331df5eeb05353547f7
* Fix the unix driver to check defined(_BSD_SOURCE) rather than just the plaindrh2013-04-03
| | | | | _BSD_SOURCE macro. This fixes the build for OpenBSD. FossilOrigin-Name: 1dd42ef4144ee08fb4ee1676d934a56a0e34bac2
* Fix a resource leak in os_unix.c.dan2013-04-02
| | | FossilOrigin-Name: b29cda03fe4e8d8f5b5acbbea2d69f284a2bdf23
* Add test cases for errors in mmap() or mremap() is os_unix.c.dan2013-04-02
| | | FossilOrigin-Name: 3098a3c1e7305033904a496ef534cb312a876fab
* Remove a debugging printf() accidently left in the previous check-in.drh2013-04-01
| | | FossilOrigin-Name: 8198cdd8ac5dcc1c677fffa869ac965186b96abf
* Add the SQLITE_CONFIG_MMAP_LIMIT configuration option for overriding thedrh2013-04-01
| | | | | | | | 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
* Attempt to emulate mremap() on non-Linux systems by allocating a second ↵dan2013-04-01
| | | | | mapping immediately following the first in virtual memory. FossilOrigin-Name: 4d67433db8fb4754ae6b192945e479f3d7bad579
* Fix a comment in os_unix.c. No code changes.drh2013-03-26
| | | FossilOrigin-Name: 72813b8ec924b91583c679668f7c4561dff82a02
* Memory-mapped I/O is now on by default. The "PRAGMA mmap_limit(N)" can bedrh2013-03-25
| | | | | | | 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
* Add munmap and mremap to the set of os interfaces that can be overloadeddrh2013-03-25
| | | | | in os_unix.c. FossilOrigin-Name: 8776047bd776bbf266eb9c3b56683badb84ae73e
* Use mremap() on Linux.dan2013-03-25
| | | FossilOrigin-Name: 431aecc8600c29c203546e48d256510510238887
* Merge all recent trunk changes into the experimental-mmap branch.drh2013-03-25
|\ | | | | FossilOrigin-Name: a607d63f0b6a3d3785e9385187d3e6b92e14fc70
| * Many spelling fixes in comments. No changes to code.mistachkin2013-03-21
| | | | | | FossilOrigin-Name: 6f6e2d50941e444ebc83604daddcc034137a05b7
* | Add a test that simulates an error in mmap().dan2013-03-25
| | | | | | FossilOrigin-Name: 6ec7367d8e98425f00eeb8215ca8964313c1d0b7
* | Change the signature of the xUnfetch method to "int ↵dan2013-03-25
| | | | | | | | | | (*xUnfetch)(sqlite3_file*, sqlite3_int64 iOfst, void *p)". FossilOrigin-Name: 115b830509e8f0aa9d5965c1e9cd4f2ed9d01938
* | Remove unnecessary code to round the size of a memory mapping to 4KB from ↵dan2013-03-25
| | | | | | | | | | os_unix.c. Rename SQLITE_IOERR_MREMAP to SQLITE_IOERR_MMAP. Fix other small issues in os_unix.c. FossilOrigin-Name: dce35c01a5fe66d2970075b1e3f0376026485e4c
* | Fix a case in the pager where an xFetch() reference was being leaked ↵dan2013-03-25
| | | | | | | | | | following an OOM error. FossilOrigin-Name: 5885ba6ce768658ec25b60747430d147b315b55c
* | Replace the sqlite3_io_methods.xMremap interface with ↵dan2013-03-23
| | | | | | | | | | sqlite3_io_methods.xFetch and xUnfetch. FossilOrigin-Name: 1431be95579160fb70408d43e17fc23c7b69ab4a
* | Add a fix for the assert() statements added by the previous commit.dan2013-03-22
| | | | | | FossilOrigin-Name: 19345416ed5e1ab5b0b35993b0b9069c2fb1683b
* | Add assert statements to os_unix.c to ensure that any mapped region of the ↵dan2013-03-22
| | | | | | | | | | database file is not being read or written using the xRead() or xWrite() methods. FossilOrigin-Name: 765615f9fba7c1765eb741cb98a09a28b464ee55
* | Do not use the Linux mremap() call. Use the same strategy for xMremap() as ↵dan2013-03-21
| | | | | | | | | | on OSX instead. FossilOrigin-Name: 5ed8ad780c991d2ca44003ee84350fb5e95ad58e
* | Optimize the xMremap method in os_unix.c some.dan2013-03-20
| | | | | | FossilOrigin-Name: 9529ed88a71fee02fae72dc86f0669bd6856ff92
* | When possible, use memory mapping when appending new pages to a database file.dan2013-03-20
| | | | | | FossilOrigin-Name: 14135da3cdbafd699563a29608f32347cda28338
* | Add the sqlite3_io_methods.xMremap() method to the VFS interface. Also ↵dan2013-03-19
| | | | | | | | | | "PRAGMA mmap_size". FossilOrigin-Name: 6183f1bd86ceed76d22d9762f3d7eb33262c62d1
* | Use mmap() to read from the database file in rollback mode. This branch is ↵dan2013-03-14
|/ | | | | unix only for now. FossilOrigin-Name: 6f21d9cbf5d457e63a7282015a89ae785526cf6d
* Fix an operator precedence problem on the [1d8086902e] check-in.drh2013-03-06
| | | FossilOrigin-Name: 4f5f3aebe81c3cbe539db3e33ec38fa3de47e90b
* Do not attempt to set the permissions on an existing journal or wal file. Do ↵dan2013-03-05
| | | | | this only immediately after creating a new file (or opening one zero bytes in size). FossilOrigin-Name: 1d8086902ee96347491bce5ec04dc92ccd42efa1
* Always use strncmp() rather than memcmp() when comparing strings where onedrh2013-03-01
| | | | | | | or other string might be less than the length parameter, since optimized versions of memcmp() might read past the first difference and in so doing generate an access violation. FossilOrigin-Name: d73435587ba7459e2e2c32980d0e17abdeceb4bc
* Do not use umask() since it change the umask for the entire process, not justdrh2013-01-04
| | | | | | the thread using SQLite. Make whatever permission changes are needed using fchmod() after the file is created, instead. FossilOrigin-Name: 6c4c2b7dbadedac384d380efd54f12f6ccbf4ca9
* Add the SQLITE_FCNTL_TEMPFILENAME file control that asks the underlying VFSdrh2012-12-06
| | | | | to return a new temporary filename. Per request from NSS team at Mozilla. FossilOrigin-Name: 1a63b1d5fa5d79f96eddbda6d94bc10248863710
* Use preprocessor macros to automatically detect whether or notdrh2012-11-13
| | | | | | posix_allocate() is available. (It is generally available on Linux but not on Mac.) Ticket [5eaa61ea1881040b17449ca043b6f8fd9ca55dc3] FossilOrigin-Name: 597333f1024092b94bcd8772541e19a0f707bd40
* When available, use posix_fallocate() rather than ftruncate() to allocatedrh2012-11-13
| | | | | | | | space for mmap()ed -shm files, since posix_fallocate() gives an error if no disk space is available whereas ftruncate() is silent and leaves the system vulnerable to a SIGBUS upon first write to the mmap()ed region. Ticket [5eaa61ea1881040b17449ca043b6f8fd9ca55dc3] FossilOrigin-Name: 356259617cfad04492a02912fdf781f54a2b4494
* Only log unlink() errors if the error is something other thandrh2012-11-09
| | | | | | SQLITE_IOERR_DELETE_NOENT. The error is still reported up the stack, it is simply not added to the sqlite3_log(). FossilOrigin-Name: 5a3b07f0f5dfae7eea870303f52f37d6a17f1da2
* Change os_unix.c to propagate ENOENT errors back to sqlite as ↵dan2012-11-09
| | | | | SQLITE_IOERR_DELETE_NOENT. Have SQLite ignore these where they are benign and propagate them back to the caller where they may indicate a file-system malfunction of some description. FossilOrigin-Name: bed9c172ce624ab7b5b9de9ad42444891717ad9a
* Add QNX-specific performance tweaks to the unix VFS. (Cherry-pick merge ofdrh2012-10-26
| | | | | [b02849e7bde458].) FossilOrigin-Name: 63a7dd75e61afb3d05a1434f66ad6a5f08352aad
* Attempt to suppress warnings generated by Coverity.drh2012-10-09
| | | FossilOrigin-Name: 7b1a6e6cb5099076bf19db142b17c99044a869cd
* Make sure the size parameter to read and write VFS methods in the unix VFSdrh2012-10-01
| | | | | | | do not become too big or go negative. This was not actually possible in the current code. The checks are added to make sure some future bug does not make it possible. FossilOrigin-Name: daebe3bd2d9bd7b6f876a8110cf5045eb3fee078
* Fix all known instances of 'repeated the' style typos in comments. No ↵mistachkin2012-08-25
| | | | | changes to code. FossilOrigin-Name: 9b19b847533f944f289d93dcdba29c0d67bf251c
* Remove tab characters from source code files. Replace them with spaces.drh2012-08-20
| | | FossilOrigin-Name: 7edd10a960d5ff121e470b0549b0aa9fb7760022
* Avoid calling fchown() if the process is not running as root.drh2012-05-31
| | | FossilOrigin-Name: 70c419a434be77b042a23174483d6a411899eb5d
* Changes some NDEBUG macros to SQLITE_DEBUG in os_unix.c. The is a notationaldrh2012-05-29
| | | | | change only and really should not effect the code. FossilOrigin-Name: 8e3025709e4954803919c84f3a810c7c63c60601
* In the unix VFS, always set every open file to close-on-exec using eitherdrh2012-04-14
| | | | | | O_CLOEXEC at open (preferred) or FD_CLOEXEC in an ioctl after opening. Before this changes, many files were done this way, but not all. FossilOrigin-Name: 9efbeb11ae0d480a13ff1353820c12f3a8bff452
* Ignore the value of SQLITE_FCNTL_CHUNK_SIZE if it is negative.drh2012-04-05
| | | FossilOrigin-Name: 1b08fef9451f4d59148548faed115d1a5d0bcd98
* Fix a harmless compiler warning introduced by the previous check-in.drh2012-02-13
| | | FossilOrigin-Name: a8a042a751557d06bf04455ed7629cb29adcd87f
* On unix, ignore the umask when creating journal files. That way, journal filesdrh2012-02-13
| | | | | | | will have exactly the same permissions as the original database and any process that has permission to write to the database can also recover hot journals. FossilOrigin-Name: 84b324606adc8437338c086404eb157f30f04130
* Fix a typo in the type of the fchown() function in os_unix.c.dan2012-02-13
| | | FossilOrigin-Name: bfbfe05b81919ecc3d6e7be4c24994f795f16582
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