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Overview
| Comment: | When an attempt to change journal_mode fails due to locks, be sure to leave internal structures in a consistent state. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
cf3d1e0b8a739302cf2848ac3e6eaaae |
| User & Date: | drh 2010-05-11 14:00:40 |
Context
|
2010-05-11
| ||
| 16:29 | Have os_unix.c use the suffix "-wal-index" for wal-index files instead of "-wal-inde". check-in: 885e854e user: dan tags: trunk | |
| 14:00 | When an attempt to change journal_mode fails due to locks, be sure to leave internal structures in a consistent state. check-in: cf3d1e0b user: drh tags: trunk | |
| 12:19 | Changes so that WAL and exclusive-locking mode work together. check-in: 71e7b1cf user: dan tags: trunk | |
Changes
Changes to src/pager.c.
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rc = sqlite3OsLock(pPager->fd, SQLITE_LOCK_EXCLUSIVE);
if( rc==SQLITE_OK ){
rc = sqlite3WalClose(pPager->pWal, pPager->fd,
(pPager->noSync ? 0 : pPager->sync_flags),
pPager->pageSize, (u8*)pPager->pTmpSpace
);
pPager->pWal = 0;
}
}
return rc;
}
#endif
#endif /* SQLITE_OMIT_DISKIO */
|
> > > > |
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rc = sqlite3OsLock(pPager->fd, SQLITE_LOCK_EXCLUSIVE);
if( rc==SQLITE_OK ){
rc = sqlite3WalClose(pPager->pWal, pPager->fd,
(pPager->noSync ? 0 : pPager->sync_flags),
pPager->pageSize, (u8*)pPager->pTmpSpace
);
pPager->pWal = 0;
}else{
/* If we cannot get an EXCLUSIVE lock, downgrade the PENDING lock
** that we did get back to SHARED. */
sqlite3OsUnlock(pPager->fd, SQLITE_LOCK_SHARED);
}
}
return rc;
}
#endif
#endif /* SQLITE_OMIT_DISKIO */
|
Changes to src/vdbe.c.
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*/
assert( sqlite3BtreeIsInTrans(pBt)==0 );
if( rc==SQLITE_OK ){
rc = sqlite3BtreeSetVersion(pBt,
(eNew==PAGER_JOURNALMODE_WAL ? 2 : 1));
if( rc==SQLITE_BUSY && pOp->p5==0 ) goto abort_due_to_error;
}else if( rc==SQLITE_BUSY ){
rc = SQLITE_OK;
}
}
}
}
#endif /* ifndef SQLITE_OMIT_WAL */
|
> |
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*/
assert( sqlite3BtreeIsInTrans(pBt)==0 );
if( rc==SQLITE_OK ){
rc = sqlite3BtreeSetVersion(pBt,
(eNew==PAGER_JOURNALMODE_WAL ? 2 : 1));
if( rc==SQLITE_BUSY && pOp->p5==0 ) goto abort_due_to_error;
}else if( rc==SQLITE_BUSY ){
eNew = PAGER_JOURNALMODE_QUERY;
rc = SQLITE_OK;
}
}
}
}
#endif /* ifndef SQLITE_OMIT_WAL */
|