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Overview
Comment: | Add a comment to the openSubjournal() function in pager.c. (CVS 6130) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
04387ae10ab3be24c93497f4af6f48d6 |
User & Date: | danielk1977 2009-01-07 10:52:56.000 |
Context
2009-01-07
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15:18 | Fix for 'truncate file' operations on in-memory databases. (CVS 6131) (check-in: 83d1eafbde user: danielk1977 tags: trunk) | |
10:52 | Add a comment to the openSubjournal() function in pager.c. (CVS 6130) (check-in: 04387ae10a user: danielk1977 tags: trunk) | |
10:35 | Fix a problem with reverting a 'DROP TABLE' command executed inside of a savepoint on an auto-vacuum database. (CVS 6129) (check-in: 3a4bb83235 user: danielk1977 tags: trunk) | |
Changes
Changes to src/pager.c.
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14 15 16 17 18 19 20 | ** 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. ** | | | 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | ** 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 1.537 2009/01/07 10:52:56 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ |
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3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 | Pager *pPager = pPg->pPager; sqlite3PcacheRelease(pPg); pagerUnlockIfUnused(pPager); } return SQLITE_OK; } static int openSubJournal(Pager *pPager){ int rc = SQLITE_OK; if( pPager->journalOpen && !pPager->sjfd->pMethods ){ if( pPager->journalMode==PAGER_JOURNALMODE_MEMORY ){ sqlite3MemJournalOpen(pPager->sjfd); }else{ rc = sqlite3PagerOpentemp(pPager, pPager->sjfd, SQLITE_OPEN_SUBJOURNAL); | > > > > > > > > > | 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 | Pager *pPager = pPg->pPager; sqlite3PcacheRelease(pPg); pagerUnlockIfUnused(pPager); } return SQLITE_OK; } /* ** If the main journal file has already been opened, ensure that the ** sub-journal file is open too. If the main journal is not open, ** this function is a no-op. ** ** SQLITE_OK is returned if everything goes according to plan. An ** SQLITE_IOERR_XXX error code is returned if the call to ** sqlite3OsOpen() fails. */ static int openSubJournal(Pager *pPager){ int rc = SQLITE_OK; if( pPager->journalOpen && !pPager->sjfd->pMethods ){ if( pPager->journalMode==PAGER_JOURNALMODE_MEMORY ){ sqlite3MemJournalOpen(pPager->sjfd); }else{ rc = sqlite3PagerOpentemp(pPager, pPager->sjfd, SQLITE_OPEN_SUBJOURNAL); |
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