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Overview
| Comment: | Add the SQLITE_EXTRA_DURABLE compile-time option. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
30671345b1c1ee55a2d1aa17273213f1 |
| User & Date: | drh 2016-01-25 13:55:47 |
Context
|
2016-01-25
| ||
| 15:57 | Replace the OP_SetIfNotPos operator with OP_OffsetLimit in the VDBE, for simpler and smaller code. (check-in: 7ac017a4 user: drh tags: trunk) | |
| 13:55 | Add the SQLITE_EXTRA_DURABLE compile-time option. (check-in: 30671345 user: drh tags: trunk) | |
| 02:15 | Small simplification to the prepare statement opcode memory reuse logic. Easier to read, and slightly smaller and faster. (check-in: 8a1deae4 user: drh tags: trunk) | |
Changes
Changes to src/pager.c.
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423 424 425 426 427 428 429 430 431 432 433 434 435 436 | /* ** The maximum allowed sector size. 64KiB. If the xSectorsize() method ** returns a value larger than this, then MAX_SECTOR_SIZE is used instead. ** This could conceivably cause corruption following a power failure on ** such a system. This is currently an undocumented limit. */ #define MAX_SECTOR_SIZE 0x10000 /* ** An instance of the following structure is allocated for each active ** savepoint and statement transaction in the system. All such structures ** are stored in the Pager.aSavepoint[] array, which is allocated and ** resized using sqlite3Realloc(). ** | > > > > > > > > > > > > > > | 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 | /* ** The maximum allowed sector size. 64KiB. If the xSectorsize() method ** returns a value larger than this, then MAX_SECTOR_SIZE is used instead. ** This could conceivably cause corruption following a power failure on ** such a system. This is currently an undocumented limit. */ #define MAX_SECTOR_SIZE 0x10000 /* ** If the option SQLITE_EXTRA_DURABLE option is set at compile-time, then ** SQLite will do extra fsync() operations when synchronous==FULL to help ** ensure that transactions are durable across a power failure. Most ** applications are happy as long as transactions are consistent across ** a power failure, and are perfectly willing to lose the last transaction ** in exchange for the extra performance of avoiding directory syncs. ** And so the default SQLITE_EXTRA_DURABLE setting is off. */ #ifndef SQLITE_EXTRA_DURABLE # define SQLITE_EXTRA_DURABLE 0 #endif /* ** An instance of the following structure is allocated for each active ** savepoint and statement transaction in the system. All such structures ** are stored in the Pager.aSavepoint[] array, which is allocated and ** resized using sqlite3Realloc(). ** |
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1979 1980 1981 1982 1983 1984 1985 |
int bDelete = (!pPager->tempFile && sqlite3JournalExists(pPager->jfd));
assert( pPager->journalMode==PAGER_JOURNALMODE_DELETE
|| pPager->journalMode==PAGER_JOURNALMODE_MEMORY
|| pPager->journalMode==PAGER_JOURNALMODE_WAL
);
sqlite3OsClose(pPager->jfd);
if( bDelete ){
| | > | 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 |
int bDelete = (!pPager->tempFile && sqlite3JournalExists(pPager->jfd));
assert( pPager->journalMode==PAGER_JOURNALMODE_DELETE
|| pPager->journalMode==PAGER_JOURNALMODE_MEMORY
|| pPager->journalMode==PAGER_JOURNALMODE_WAL
);
sqlite3OsClose(pPager->jfd);
if( bDelete ){
rc = sqlite3OsDelete(pPager->pVfs, pPager->zJournal,
pPager->fullSync && SQLITE_EXTRA_DURABLE);
}
}
}
#ifdef SQLITE_CHECK_PAGES
sqlite3PcacheIterateDirty(pPager->pPCache, pager_set_pagehash);
if( pPager->dbSize==0 && sqlite3PcacheRefCount(pPager->pPCache)>0 ){
|
| ︙ | ︙ |