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Overview
| Comment: | Do not return SQLITE_IOERR when the user attempts to open a small file that is not a database with mmap enabled. Instead return SQLITE_NOTADB. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | experimental-mmap |
| Files: | files | file ages | folders |
| SHA1: |
bbcaab3e80d0ff776d8567094b137d14 |
| User & Date: | dan 2013-03-25 14:31:39 |
Context
|
2013-03-25
| ||
| 16:28 | Remove unnecessary code to round the size of a memory mapping to 4KB from os_unix.c. Rename SQLITE_IOERR_MREMAP to SQLITE_IOERR_MMAP. Fix other small issues in os_unix.c. check-in: dce35c01 user: dan tags: experimental-mmap | |
| 14:31 | Do not return SQLITE_IOERR when the user attempts to open a small file that is not a database with mmap enabled. Instead return SQLITE_NOTADB. check-in: bbcaab3e user: dan tags: experimental-mmap | |
| 13:50 | Fix a case in the pager where an xFetch() reference was being leaked following an OOM error. check-in: 5885ba6c user: dan tags: experimental-mmap | |
Changes
Changes to src/pager.c.
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|| (pPager->exclusiveMode && pPager->eLock>SHARED_LOCK)
);
}
if( !pPager->tempFile && (
pPager->pBackup
|| sqlite3PcachePagecount(pPager->pPCache)>0
|| pPager->bUseFetch /* TODO: Currently required for xUnfetch(0) only. */
)){
/* The shared-lock has just been acquired on the database file
** and there are already pages in the cache (from a previous
** read or write transaction). Check to see if the database
** has been modified. If the database has changed, flush the
** cache.
**
................................................................................
rc = pagerPagecount(pPager, &nPage);
if( rc ) goto failed;
if( nPage>0 ){
IOTRACE(("CKVERS %p %d\n", pPager, sizeof(dbFileVers)));
rc = sqlite3OsRead(pPager->fd, &dbFileVers, sizeof(dbFileVers), 24);
if( rc!=SQLITE_OK ){
goto failed;
}
}else{
memset(dbFileVers, 0, sizeof(dbFileVers));
}
if( memcmp(pPager->dbFileVers, dbFileVers, sizeof(dbFileVers))!=0 ){
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|| (pPager->exclusiveMode && pPager->eLock>SHARED_LOCK)
);
}
if( !pPager->tempFile && (
pPager->pBackup
|| sqlite3PcachePagecount(pPager->pPCache)>0
|| pPager->bUseFetch
)){
/* The shared-lock has just been acquired on the database file
** and there are already pages in the cache (from a previous
** read or write transaction). Check to see if the database
** has been modified. If the database has changed, flush the
** cache.
**
................................................................................
rc = pagerPagecount(pPager, &nPage);
if( rc ) goto failed;
if( nPage>0 ){
IOTRACE(("CKVERS %p %d\n", pPager, sizeof(dbFileVers)));
rc = sqlite3OsRead(pPager->fd, &dbFileVers, sizeof(dbFileVers), 24);
if( rc!=SQLITE_OK && rc!=SQLITE_IOERR_SHORT_READ ){
goto failed;
}
}else{
memset(dbFileVers, 0, sizeof(dbFileVers));
}
if( memcmp(pPager->dbFileVers, dbFileVers, sizeof(dbFileVers))!=0 ){
|