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Overview
| Comment: | Candidate fix for a pager bug associated with sqlite3PagerMovepage(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
8c046eb6d16682d5e755624deb4f76f5 |
| User & Date: | drh 2010-04-09 15:34:06 |
Context
|
2010-04-09
| ||
| 23:05 | Add a test case for the OOM-fault corruption issue. Ticket [9d68c883132c8]. (check-in: 0a64a937 user: drh tags: trunk) | |
| 15:34 | Candidate fix for a pager bug associated with sqlite3PagerMovepage(). (check-in: 8c046eb6 user: drh tags: trunk) | |
| 09:14 | Avoid unnecessary calls to sqlite3_step() with null prepared statements while parsing the schema. (check-in: ae04d2d1 user: drh tags: trunk) | |
Changes
Changes to src/pager.c.
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pPg = pager_lookup(pPager, pgno);
assert( pPg || !MEMDB );
PAGERTRACE(("PLAYBACK %d page %d hash(%08x) %s\n",
PAGERID(pPager), pgno, pager_datahash(pPager->pageSize, (u8*)aData),
(isMainJrnl?"main-journal":"sub-journal")
));
if( (pPager->state>=PAGER_EXCLUSIVE)
&& (pPg==0 || 0==(pPg->flags&PGHDR_NEED_SYNC))
&& isOpen(pPager->fd)
&& !isUnsync
){
i64 ofst = (pgno-1)*(i64)pPager->pageSize;
rc = sqlite3OsWrite(pPager->fd, (u8*)aData, pPager->pageSize, ofst);
if( pgno>pPager->dbFileSize ){
pPager->dbFileSize = pgno;
}
if( pPager->pBackup ){
CODEC1(pPager, aData, pgno, 3, rc=SQLITE_NOMEM);
sqlite3BackupUpdate(pPager->pBackup, pgno, (u8*)aData);
|
| > |
1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 |
pPg = pager_lookup(pPager, pgno);
assert( pPg || !MEMDB );
PAGERTRACE(("PLAYBACK %d page %d hash(%08x) %s\n",
PAGERID(pPager), pgno, pager_datahash(pPager->pageSize, (u8*)aData),
(isMainJrnl?"main-journal":"sub-journal")
));
if( (pPager->state>=PAGER_EXCLUSIVE)
&& (!isSavepnt || pPg==0 || 0==(pPg->flags&PGHDR_NEED_SYNC))
&& isOpen(pPager->fd)
&& !isUnsync
){
i64 ofst = (pgno-1)*(i64)pPager->pageSize;
testcase( !isSavepnt && pPg!=0 && (pPg->flags&PGHDR_NEED_SYNC)!=0 );
rc = sqlite3OsWrite(pPager->fd, (u8*)aData, pPager->pageSize, ofst);
if( pgno>pPager->dbFileSize ){
pPager->dbFileSize = pgno;
}
if( pPager->pBackup ){
CODEC1(pPager, aData, pgno, 3, rc=SQLITE_NOMEM);
sqlite3BackupUpdate(pPager->pBackup, pgno, (u8*)aData);
|