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Overview
| Comment: | Remove two more overzealous assert() statements. (CVS 6932) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 788aa9dde9e76f67f22c07a904faf03e |
| User & Date: | drh 2009-07-25 00:13:59 |
Context
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2009-07-25
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| 04:12 | Add assert() statements to more tightly constrain the state of pager.c. Remove the three pager*.test scripts since they violate the constraints asserted above by modifying the state of the system in ways that it cannot be modified in a live system. (CVS 6933) check-in: 3b6d370e user: drh tags: trunk | |
| 00:13 | Remove two more overzealous assert() statements. (CVS 6932) check-in: 788aa9dd user: drh tags: trunk | |
| 00:10 | Remove an overzealous assert() from pager.c. (CVS 6931) check-in: 4a924b47 user: drh tags: trunk | |
Changes
Changes to src/pager.c.
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** 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 */ ................................................................................ ** 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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** 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 1.619 2009/07/25 00:13:59 drh Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ ................................................................................ ** 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 ){ |