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Overview
| Comment: | Discard the pager-cache when the page-size is changed. (CVS 3719) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
e4209f7193d160709b0d8b5cd358df56 |
| User & Date: | danielk1977 2007-03-26 15:46:01 |
Context
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2007-03-26
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| 16:13 | Run some malloc() tests with exclusive-access mode. (CVS 3720) check-in: 9ebba469 user: danielk1977 tags: trunk | |
| 15:46 | Discard the pager-cache when the page-size is changed. (CVS 3719) check-in: e4209f71 user: danielk1977 tags: trunk | |
| 13:48 | Avoid unnecessary calls to pager_unwritelock() when in exclusive-access mode. Add the speed2.test script to the test suite. (CVS 3718) check-in: ab53f508 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 1.298 2007/03/26 13:48:13 drh Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" #include "os.h" #include "pager.h" #include <assert.h> #include <string.h> ................................................................................ /* ** Set the page size. Return the new size. If the suggest new page ** size is inappropriate, then an alternative page size is selected ** and returned. */ int sqlite3PagerSetPagesize(Pager *pPager, int pageSize){ assert( pageSize>=512 && pageSize<=SQLITE_MAX_PAGE_SIZE ); if( !pPager->memDb ){ pPager->pageSize = pageSize; sqlite3ReallocOrFree((void **)&pPager->pTmpSpace, pageSize); } return pPager->pageSize; } /* |
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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 1.299 2007/03/26 15:46:01 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" #include "os.h" #include "pager.h" #include <assert.h> #include <string.h> ................................................................................ /* ** Set the page size. Return the new size. If the suggest new page ** size is inappropriate, then an alternative page size is selected ** and returned. */ int sqlite3PagerSetPagesize(Pager *pPager, int pageSize){ assert( pageSize>=512 && pageSize<=SQLITE_MAX_PAGE_SIZE ); if( !pPager->memDb && pPager->nRef==0 ){ pager_reset(pPager); pPager->pageSize = pageSize; sqlite3ReallocOrFree((void **)&pPager->pTmpSpace, pageSize); } return pPager->pageSize; } /* |