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Overview
| Comment: | Add a NEVER() macro around a pager.c conditional that must always be false in the current implementation. (CVS 6920) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
1e510d7fc5cc47fe2714dbb1ed3ea7e9 |
| User & Date: | drh 2009-07-22 13:19:20 |
Context
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2009-07-22
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| 14:08 | Fix a double-free that can occur after database corruption is detected. (CVS 6921) check-in: 5260e8b1 user: danielk1977 tags: trunk | |
| 13:19 | Add a NEVER() macro around a pager.c conditional that must always be false in the current implementation. (CVS 6920) check-in: 1e510d7f user: drh tags: trunk | |
| 07:27 | Changes to test code (only) to allow veryquick.test to run with OMIT_UTF16 builsd. Ticket #3985. (CVS 6919) check-in: 7f3fc7f2 user: danielk1977 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 1.611 2009/07/22 02:02:40 drh Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ ................................................................................ ** occurs, an IO error code is returned. Or, if the EXCLUSIVE lock cannot ** be obtained, SQLITE_BUSY is returned. */ static int pager_write_pagelist(PgHdr *pList){ Pager *pPager; /* Pager object */ int rc; /* Return code */ if( pList==0 ) return SQLITE_OK; pPager = pList->pPager; /* At this point there may be either a RESERVED or EXCLUSIVE lock on the ** database file. If there is already an EXCLUSIVE lock, the following ** call is a no-op. ** ** Moving the lock from RESERVED to EXCLUSIVE actually involves going |
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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 1.612 2009/07/22 13:19:20 drh Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ ................................................................................ ** occurs, an IO error code is returned. Or, if the EXCLUSIVE lock cannot ** be obtained, SQLITE_BUSY is returned. */ static int pager_write_pagelist(PgHdr *pList){ Pager *pPager; /* Pager object */ int rc; /* Return code */ if( NEVER(pList==0) ) return SQLITE_OK; pPager = pList->pPager; /* At this point there may be either a RESERVED or EXCLUSIVE lock on the ** database file. If there is already an EXCLUSIVE lock, the following ** call is a no-op. ** ** Moving the lock from RESERVED to EXCLUSIVE actually involves going |