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Overview
| Comment: | Fix an error introduced by (5346). The list could become corrupted when the database was truncated. (CVS 5356) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
fbd320ed27dc8910f5035b41171576b4 |
| User & Date: | danielk1977 2008-07-07 18:42:41 |
Context
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2008-07-07
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| 19:52 | Make check-in (5356) compatible with builds that do not enable memory management. Remove unnecessary code from main.c. Add out-of-memory tests for sqlite3_complete16(). (CVS 5357) check-in: 28f8b6bf user: drh tags: trunk | |
| 18:42 | Fix an error introduced by (5346). The list could become corrupted when the database was truncated. (CVS 5356) check-in: fbd320ed user: danielk1977 tags: trunk | |
| 17:55 | Fix a problem in shared_err.test preventing it from running properly and add a test to corrupt2.test to cover another corruption detection case. (CVS 5355) check-in: 2dcd5287 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 1.461 2008/07/07 11:18:28 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" #include <assert.h> #include <string.h> /* ................................................................................ if( pPg->pgno<=dbSize ){ ppPg = &pPg->pNextAll; }else if( pPg->nRef>0 ){ memset(PGHDR_TO_DATA(pPg), 0, pPager->pageSize); ppPg = &pPg->pNextAll; }else{ *ppPg = pPg->pNextAll; IOTRACE(("PGFREE %p %d\n", pPager, pPg->pgno)); PAGER_INCR(sqlite3_pager_pgfree_count); unlinkPage(pPg); makeClean(pPg); sqlite3PageFree(pPg->pData); sqlite3_free(pPg); pPager->nPage--; |
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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 1.462 2008/07/07 18:42:41 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" #include <assert.h> #include <string.h> /* ................................................................................ if( pPg->pgno<=dbSize ){ ppPg = &pPg->pNextAll; }else if( pPg->nRef>0 ){ memset(PGHDR_TO_DATA(pPg), 0, pPager->pageSize); ppPg = &pPg->pNextAll; }else{ *ppPg = pPg->pNextAll; if( *ppPg ){ (*ppPg)->pPrevAll = pPg->pPrevAll; } IOTRACE(("PGFREE %p %d\n", pPager, pPg->pgno)); PAGER_INCR(sqlite3_pager_pgfree_count); unlinkPage(pPg); makeClean(pPg); sqlite3PageFree(pPg->pData); sqlite3_free(pPg); pPager->nPage--; |