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Overview
Comment: | Remove an overzealous assert() from pager.c. (CVS 6931) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
4a924b475aa0f7f2f69caed0adc2e60d |
User & Date: | drh 2009-07-25 00:10:46.000 |
Context
2009-07-25
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00:13 | Remove two more overzealous assert() statements. (CVS 6932) (check-in: 788aa9dde9 user: drh tags: trunk) | |
00:10 | Remove an overzealous assert() from pager.c. (CVS 6931) (check-in: 4a924b475a user: drh tags: trunk) | |
2009-07-24
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21:23 | Fix an issue with the previous check-in, (6929). (CVS 6930) (check-in: e5165c80ab user: drh tags: trunk) | |
Changes
Changes to src/pager.c.
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14 15 16 17 18 19 20 | ** The pager is used to access a database disk file. It implements ** atomic commit and rollback through the use of a journal file that ** is separate from the database file. The pager also implements file ** locking to prevent two processes from writing the same database ** file simultaneously, or one process from reading the database while ** another is writing. ** | | | 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | ** The pager is used to access a database disk file. It implements ** atomic commit and rollback through the use of a journal file that ** is separate from the database file. The pager also implements file ** locking to prevent two processes from writing the same database ** file simultaneously, or one process from reading the database while ** another is writing. ** ** @(#) $Id: pager.c,v 1.618 2009/07/25 00:10:46 drh Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ |
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2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 | ** If the page size is not changed, either because one of the enumerated ** conditions above is not true, the pager was in error state when this ** function was called, or because the memory allocation attempt failed, ** then *pPageSize is set to the old, retained page size before returning. */ int sqlite3PagerSetPagesize(Pager *pPager, u16 *pPageSize, int nReserve){ int rc = pPager->errCode; if( rc==SQLITE_OK ){ u16 pageSize = *pPageSize; assert( pageSize==0 || (pageSize>=512 && pageSize<=SQLITE_MAX_PAGE_SIZE) ); if( pageSize && pageSize!=pPager->pageSize && (pPager->memDb==0 || pPager->dbSize==0) && sqlite3PcacheRefCount(pPager->pPCache)==0 ){ | > > | 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 | ** If the page size is not changed, either because one of the enumerated ** conditions above is not true, the pager was in error state when this ** function was called, or because the memory allocation attempt failed, ** then *pPageSize is set to the old, retained page size before returning. */ int sqlite3PagerSetPagesize(Pager *pPager, u16 *pPageSize, int nReserve){ int rc = pPager->errCode; assert( pPager->dbSize==0 ); assert( sqlite3PcacheRefCount(pPager->pPCache)==0 ); if( rc==SQLITE_OK ){ u16 pageSize = *pPageSize; assert( pageSize==0 || (pageSize>=512 && pageSize<=SQLITE_MAX_PAGE_SIZE) ); if( pageSize && pageSize!=pPager->pageSize && (pPager->memDb==0 || pPager->dbSize==0) && sqlite3PcacheRefCount(pPager->pPCache)==0 ){ |
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4105 4106 4107 4108 4109 4110 4111 | ** sub-journal. If the subjInMemory argument is zero, then any required ** sub-journal is implemented in-memory if pPager is an in-memory database, ** or using a temporary file otherwise. */ int sqlite3PagerBegin(Pager *pPager, int exFlag, int subjInMemory){ int rc = SQLITE_OK; assert( pPager->state!=PAGER_UNLOCK ); | < | 4107 4108 4109 4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 | ** sub-journal. If the subjInMemory argument is zero, then any required ** sub-journal is implemented in-memory if pPager is an in-memory database, ** or using a temporary file otherwise. */ int sqlite3PagerBegin(Pager *pPager, int exFlag, int subjInMemory){ int rc = SQLITE_OK; assert( pPager->state!=PAGER_UNLOCK ); pPager->subjInMemory = (u8)subjInMemory; if( pPager->state==PAGER_SHARED ){ assert( pPager->pInJournal==0 ); assert( !MEMDB && !pPager->tempFile ); /* Obtain a RESERVED lock on the database file. If the exFlag parameter ** is true, then immediately upgrade this to an EXCLUSIVE lock. The |
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