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Overview
| Comment: | When closing a WAL database, if the exclusive lock on the database file is obtained and the database successfully checkpointed, delete the wal-index file from the file system. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
2ac5d96c8e5831b392d83c86491d9ed8 |
| User & Date: | dan 2010-05-05 15:33:05 |
Context
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2010-05-05
| ||
| 16:23 | Prohibit backup if the destination is using WAL and has a different page size from the source. check-in: 7bd44794 user: drh tags: trunk | |
| 15:33 | When closing a WAL database, if the exclusive lock on the database file is obtained and the database successfully checkpointed, delete the wal-index file from the file system. check-in: 2ac5d96c user: dan tags: trunk | |
| 04:11 | Make sure the page size of the main database is fixed following a failed VACUUM attempt. Otherwise, two consecutive failed VACUUM attempts with attempted page_size changes on encrypted or WAL databases could result in database corruption. check-in: 208e7d5d user: drh tags: trunk | |
Changes
Changes to src/wal.c.
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finished:
walIndexWriteHdr(pWal, &hdr);
return rc;
}
/*
** Close an open wal-index
*/
static void walIndexClose(Wal *pWal){
sqlite3_shm *pWIndex = pWal->pWIndex;
if( pWIndex ){
sqlite3_vfs *pVfs = pWal->pVfs;
int notUsed;
pVfs->xShmLock(pVfs, pWIndex, SQLITE_SHM_UNLOCK, ¬Used);
pVfs->xShmClose(pVfs, pWIndex, 0);
}
}
/*
** Open a connection to the log file associated with database zDb. The
** database file does not actually have to exist. zDb is used only to
** figure out the name of the log file to open. If the log file does not
................................................................................
/* Open file handle on the write-ahead log file. */
if( rc==SQLITE_OK ){
flags = (SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_MAIN_JOURNAL);
rc = sqlite3OsOpen(pVfs, zWal, pRet->pFd, flags, &flags);
}
if( rc!=SQLITE_OK ){
walIndexClose(pRet);
sqlite3OsClose(pRet->pFd);
sqlite3_free(pRet);
}else{
*ppWal = pRet;
}
return rc;
}
................................................................................
rc = walCheckpoint(pWal, pFd, sync_flags, nBuf, zBuf);
if( rc==SQLITE_OK ){
isDelete = 1;
}
walIndexUnmap(pWal);
}
walIndexClose(pWal);
sqlite3OsClose(pWal->pFd);
if( isDelete ){
sqlite3OsDelete(pWal->pVfs, pWal->zName, 0);
}
sqlite3_free(pWal);
}
return rc;
|
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finished: walIndexWriteHdr(pWal, &hdr); return rc; } /* ** Close an open wal-index. */ static void walIndexClose(Wal *pWal, int isDelete){ sqlite3_shm *pWIndex = pWal->pWIndex; if( pWIndex ){ sqlite3_vfs *pVfs = pWal->pVfs; int notUsed; pVfs->xShmLock(pVfs, pWIndex, SQLITE_SHM_UNLOCK, ¬Used); pVfs->xShmClose(pVfs, pWIndex, isDelete); } } /* ** Open a connection to the log file associated with database zDb. The ** database file does not actually have to exist. zDb is used only to ** figure out the name of the log file to open. If the log file does not ................................................................................ /* Open file handle on the write-ahead log file. */ if( rc==SQLITE_OK ){ flags = (SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_MAIN_JOURNAL); rc = sqlite3OsOpen(pVfs, zWal, pRet->pFd, flags, &flags); } if( rc!=SQLITE_OK ){ walIndexClose(pRet, 0); sqlite3OsClose(pRet->pFd); sqlite3_free(pRet); }else{ *ppWal = pRet; } return rc; } ................................................................................ rc = walCheckpoint(pWal, pFd, sync_flags, nBuf, zBuf); if( rc==SQLITE_OK ){ isDelete = 1; } walIndexUnmap(pWal); } walIndexClose(pWal, isDelete); sqlite3OsClose(pWal->pFd); if( isDelete ){ sqlite3OsDelete(pWal->pVfs, pWal->zName, 0); } sqlite3_free(pWal); } return rc; |