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Overview
| Comment: | When an OOM fault occurs while moving a page for autovacuum in an in-memory database, be sure to undo the page move prior to returning the error, to avoid corrupting the in-memory database file. (CVS 6883) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
d0964b93669123e228e7ce1890167447 |
| User & Date: | drh 2009-07-12 02:31:37 |
Context
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2009-07-12
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| 02:32 | Simplifications to btree.c to help facilitate coverage testing. (CVS 6884) (check-in: dfb146ef user: drh tags: trunk) | |
| 02:31 | When an OOM fault occurs while moving a page for autovacuum in an in-memory database, be sure to undo the page move prior to returning the error, to avoid corrupting the in-memory database file. (CVS 6883) (check-in: d0964b93 user: drh tags: trunk) | |
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2009-07-11
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| 18:26 | Remove an unused parameter from the accessPayload() function in btree.c. (CVS 6882) (check-in: 7deb6568 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 1.605 2009/07/07 13:56:24 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ ................................................................................ ** to exist, in case the transaction needs to roll back. We allocate ** the page now, instead of at rollback, because we can better deal ** with an out-of-memory error now. Ticket #3761. */ if( MEMDB ){ DbPage *pNew; rc = sqlite3PagerAcquire(pPager, origPgno, &pNew, 1); if( rc!=SQLITE_OK ) return rc; sqlite3PagerUnref(pNew); } return SQLITE_OK; } #endif |
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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 1.606 2009/07/12 02:31:37 drh Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ ................................................................................ ** to exist, in case the transaction needs to roll back. We allocate ** the page now, instead of at rollback, because we can better deal ** with an out-of-memory error now. Ticket #3761. */ if( MEMDB ){ DbPage *pNew; rc = sqlite3PagerAcquire(pPager, origPgno, &pNew, 1); if( rc!=SQLITE_OK ){ sqlite3PcacheMove(pPg, origPgno); return rc; } sqlite3PagerUnref(pNew); } return SQLITE_OK; } #endif |