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Overview
| Comment: | Avoid excess syncs when padding a transaction in a WAL. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
1f24ae716df6232de768e245ea990049 |
| User & Date: | drh 2011-12-23 13:32:07 |
Context
|
2011-12-23
| ||
| 20:49 | Documentation updates. No changes to code. check-in: a8a1a639 user: drh tags: trunk | |
| 13:32 | Avoid excess syncs when padding a transaction in a WAL. check-in: 1f24ae71 user: drh tags: trunk | |
| 02:07 | Merge the POWERSAFE_OVERWRITE features and the use of statvfs() from the statvfs branch into trunk. check-in: 2370d70e user: drh tags: trunk | |
Changes
Changes to src/wal.c.
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w.iSyncPoint = ((iOffset+sectorSize-1)/sectorSize)*sectorSize;
while( iOffset<w.iSyncPoint ){
rc = walWriteOneFrame(&w, pLast, nTruncate, iOffset);
if( rc ) return rc;
iOffset += szFrame;
nExtra++;
}
}
rc = sqlite3OsSync(w.pFd, sync_flags & SQLITE_SYNC_MASK);
}
/* If this frame set completes the first transaction in the WAL and
** if PRAGMA journal_size_limit is set, then truncate the WAL to the
** journal size limit, if possible.
*/
if( isCommit && pWal->truncateOnCommit && pWal->mxWalSize>=0 ){
|
| | > |
2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 |
w.iSyncPoint = ((iOffset+sectorSize-1)/sectorSize)*sectorSize;
while( iOffset<w.iSyncPoint ){
rc = walWriteOneFrame(&w, pLast, nTruncate, iOffset);
if( rc ) return rc;
iOffset += szFrame;
nExtra++;
}
}else{
rc = sqlite3OsSync(w.pFd, sync_flags & SQLITE_SYNC_MASK);
}
}
/* If this frame set completes the first transaction in the WAL and
** if PRAGMA journal_size_limit is set, then truncate the WAL to the
** journal size limit, if possible.
*/
if( isCommit && pWal->truncateOnCommit && pWal->mxWalSize>=0 ){
|