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Overview
| Comment: | Avoid calling sqlite3OsDelete() on a file that is open, since this causes Windows to run *very* slowly. Comes up on error recovery in journal_mode=PERSIST. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
fdc651e2ec7a0babee669e24fd56632e |
| User & Date: | mistachkin 2014-03-07 02:29:56 |
Context
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2014-03-07
| ||
| 03:31 | Revise change from the previous check-in to clarify the situation when handling open journal files, regardless of journal mode. check-in: 1c318ef3 user: mistachkin tags: trunk | |
| 02:29 | Avoid calling sqlite3OsDelete() on a file that is open, since this causes Windows to run *very* slowly. Comes up on error recovery in journal_mode=PERSIST. check-in: fdc651e2 user: mistachkin tags: trunk | |
|
2014-03-06
| ||
| 18:16 | Do not run corruptH.test in mmap mode. check-in: c0d54b4e user: dan tags: trunk | |
Changes
Changes to src/pager.c.
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** in fact there is none. This results in a false-positive which will
** be dealt with by the playback routine. Ticket #3883.
*/
rc = sqlite3OsCheckReservedLock(pPager->fd, &locked);
if( rc==SQLITE_OK && !locked ){
Pgno nPage; /* Number of pages in database file */
/* Check the size of the database file. If it consists of 0 pages,
** then delete the journal file. See the header comment above for
** the reasoning here. Delete the obsolete journal file under
** a RESERVED lock to avoid race conditions and to avoid violating
** [H33020].
*/
rc = pagerPagecount(pPager, &nPage);
if( rc==SQLITE_OK ){
if( nPage==0 ){
sqlite3BeginBenignMalloc();
if( pagerLockDb(pPager, RESERVED_LOCK)==SQLITE_OK ){
sqlite3OsDelete(pVfs, pPager->zJournal, 0);
if( !pPager->exclusiveMode ) pagerUnlockDb(pPager, SHARED_LOCK);
}
sqlite3EndBenignMalloc();
}else{
|
| > | | | < | |
4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895 4896 4897 4898 4899 4900 4901 4902 4903 4904 4905 4906 4907 |
** in fact there is none. This results in a false-positive which will
** be dealt with by the playback routine. Ticket #3883.
*/
rc = sqlite3OsCheckReservedLock(pPager->fd, &locked);
if( rc==SQLITE_OK && !locked ){
Pgno nPage; /* Number of pages in database file */
/* Check the size of the database file. If it consists of 0 pages
** and the journal is not being persisted, then delete the journal
** file. See the header comment above for the reasoning here.
** Delete the obsolete journal file under a RESERVED lock to avoid
** race conditions and to avoid violating [H33020].
*/
rc = pagerPagecount(pPager, &nPage);
if( rc==SQLITE_OK ){
if( nPage==0 && pPager->journalMode!=PAGER_JOURNALMODE_PERSIST ){
sqlite3BeginBenignMalloc();
if( pagerLockDb(pPager, RESERVED_LOCK)==SQLITE_OK ){
sqlite3OsDelete(pVfs, pPager->zJournal, 0);
if( !pPager->exclusiveMode ) pagerUnlockDb(pPager, SHARED_LOCK);
}
sqlite3EndBenignMalloc();
}else{
|
Changes to test/uri.test.
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#
ifcapable wal {
testvfs tvfs1
tvfs1 filter {xOpen xDelete xAccess xFullPathname}
tvfs1 script tvfs1_callback
proc tvfs1_callback {method filename args} {
set ::T1([file tail $filename]) 1
}
testvfs tvfs2
tvfs2 filter {xOpen xDelete xAccess xFullPathname}
tvfs2 script tvfs2_callback
proc tvfs2_callback {method filename args} {
set ::T2([file tail $filename]) 1
}
catch {db close}
eval forcedelete [glob test.db*]
do_test 5.1.1 {
sqlite3 db file:test.db1?vfs=tvfs1
execsql {
|
> > |
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#
ifcapable wal {
testvfs tvfs1
tvfs1 filter {xOpen xDelete xAccess xFullPathname}
tvfs1 script tvfs1_callback
proc tvfs1_callback {method filename args} {
set ::T1([file tail $filename]) 1
return SQLITE_OK
}
testvfs tvfs2
tvfs2 filter {xOpen xDelete xAccess xFullPathname}
tvfs2 script tvfs2_callback
proc tvfs2_callback {method filename args} {
set ::T2([file tail $filename]) 1
return SQLITE_OK
}
catch {db close}
eval forcedelete [glob test.db*]
do_test 5.1.1 {
sqlite3 db file:test.db1?vfs=tvfs1
execsql {
|