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Overview
| Comment: | Add a new assert() statement to the snapshot-specific part of sqlite3WalBeginReadTrans(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
d8a12023be32bdc6df18b0a5f38b9177 |
| User & Date: | dan 2015-12-11 14:59:49 |
Context
|
2015-12-14
| ||
| 19:42 | Add a missing memAboutToChange() macro to vdbe.c, the lack of which was causing an assert() to fail incorrectly. Problem found by libfuzzer. check-in: 1a247911 user: dan tags: trunk | |
|
2015-12-11
| ||
| 14:59 | Add a new assert() statement to the snapshot-specific part of sqlite3WalBeginReadTrans(). check-in: d8a12023 user: dan tags: trunk | |
| 13:51 | Simplified alignment constraints in the memory reuse logic of sqlite3VdbeMakeReady(). check-in: e998513e user: drh tags: trunk | |
Changes
Changes to src/wal.c.
2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 |
** frames beyond pSnapshot->mxFrame. If either of these conditions are
** true, return SQLITE_BUSY_SNAPSHOT. Otherwise, overwrite pWal->hdr
** with *pSnapshot and set *pChanged as appropriate for opening the
** snapshot. */
if( !memcmp(pSnapshot->aSalt, pWal->hdr.aSalt, sizeof(pWal->hdr.aSalt))
&& pSnapshot->mxFrame>=pInfo->nBackfillAttempted
){
memcpy(&pWal->hdr, pSnapshot, sizeof(WalIndexHdr));
*pChanged = bChanged;
}else{
rc = SQLITE_BUSY_SNAPSHOT;
}
/* Release the shared CKPT lock obtained above. */
|
> |
2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 |
** frames beyond pSnapshot->mxFrame. If either of these conditions are
** true, return SQLITE_BUSY_SNAPSHOT. Otherwise, overwrite pWal->hdr
** with *pSnapshot and set *pChanged as appropriate for opening the
** snapshot. */
if( !memcmp(pSnapshot->aSalt, pWal->hdr.aSalt, sizeof(pWal->hdr.aSalt))
&& pSnapshot->mxFrame>=pInfo->nBackfillAttempted
){
assert( pWal->readLock>0 );
memcpy(&pWal->hdr, pSnapshot, sizeof(WalIndexHdr));
*pChanged = bChanged;
}else{
rc = SQLITE_BUSY_SNAPSHOT;
}
/* Release the shared CKPT lock obtained above. */
|