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Overview
| Comment: | Avoid changing the pager journal-mode once a write-transaction is open, even if no database pages have been modified. (CVS 6554) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
ad8aba3eff90d42b936e3644f10cbbd4 |
| User & Date: | danielk1977 2009-04-28 05:27:20 |
Context
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2009-04-28
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| 11:10 | Fix an assert that could fail after a parse error in expr.c. (CVS 6555) check-in: a37d1174 user: danielk1977 tags: trunk | |
| 05:27 | Avoid changing the pager journal-mode once a write-transaction is open, even if no database pages have been modified. (CVS 6554) check-in: ad8aba3e user: danielk1977 tags: trunk | |
| 04:51 | Add test cases for sqlite3_complete with an EXPLAIN QUERY PLAN on a CREATE TRIGGER statement. Ticket #3828. (CVS 6553) check-in: 6b86b40e 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 1.582 2009/04/20 17:43:03 drh Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ ................................................................................ || eMode==PAGER_JOURNALMODE_OFF || eMode==PAGER_JOURNALMODE_MEMORY ); assert( PAGER_JOURNALMODE_QUERY<0 ); if( eMode>=0 && (!MEMDB || eMode==PAGER_JOURNALMODE_MEMORY || eMode==PAGER_JOURNALMODE_OFF) && !pPager->dbModified ){ if( isOpen(pPager->jfd) ){ sqlite3OsClose(pPager->jfd); } pPager->journalMode = (u8)eMode; } return (int)pPager->journalMode; |
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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 1.583 2009/04/28 05:27:20 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ ................................................................................ || eMode==PAGER_JOURNALMODE_OFF || eMode==PAGER_JOURNALMODE_MEMORY ); assert( PAGER_JOURNALMODE_QUERY<0 ); if( eMode>=0 && (!MEMDB || eMode==PAGER_JOURNALMODE_MEMORY || eMode==PAGER_JOURNALMODE_OFF) && !pPager->dbModified && (!isOpen(pPager->jfd) || 0==pPager->journalOff) ){ if( isOpen(pPager->jfd) ){ sqlite3OsClose(pPager->jfd); } pPager->journalMode = (u8)eMode; } return (int)pPager->journalMode; |