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Overview
| Comment: | Avoid unnecessary xUnlock operations on temp file. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | win32-none |
| Files: | files | file ages | folders |
| SHA1: |
1829c38c3233c8cb194fae6d560d35a8 |
| User & Date: | drh 2014-05-01 01:20:05.808 |
Context
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2014-05-01
| ||
| 01:49 | Take out the special handling of nolock=true in os_win.c and add it to pager.c, so that it works for all VFSes. Add the pPager->noLock boolean for clarity. (check-in: 725c1c14be user: drh tags: win32-none) | |
| 01:20 | Avoid unnecessary xUnlock operations on temp file. (check-in: 1829c38c32 user: drh tags: win32-none) | |
| 01:13 | Add the immutable=TRUE query parameter and SQLITE_IOCAP_IMMUTABLE, either of which prevents locking of the database and omits tests for existance of journal files. (check-in: 71f152c85d user: drh tags: win32-none) | |
Changes
Changes to src/pager.c.
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*/
static int pagerUnlockDb(Pager *pPager, int eLock){
int rc = SQLITE_OK;
assert( !pPager->exclusiveMode || pPager->eLock==eLock );
assert( eLock==NO_LOCK || eLock==SHARED_LOCK );
assert( eLock!=NO_LOCK || pagerUseWal(pPager)==0 );
| | | 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 |
*/
static int pagerUnlockDb(Pager *pPager, int eLock){
int rc = SQLITE_OK;
assert( !pPager->exclusiveMode || pPager->eLock==eLock );
assert( eLock==NO_LOCK || eLock==SHARED_LOCK );
assert( eLock!=NO_LOCK || pagerUseWal(pPager)==0 );
if( isOpen(pPager->fd) && !pPager->tempFile ){
assert( pPager->eLock>=eLock );
rc = sqlite3OsUnlock(pPager->fd, eLock);
if( pPager->eLock!=UNKNOWN_LOCK ){
pPager->eLock = (u8)eLock;
}
IOTRACE(("UNLOCK %p %d\n", pPager, eLock))
}
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