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Overview
| Comment: | Catch an obscure case of database corruption. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
0f9b17a6da42b4da667bbbc00f713eff |
| User & Date: | dan 2009-12-05 18:03:51 |
Context
|
2009-12-05
| ||
| 18:16 | Add test case for the obscure corruption detection added by the previous commit. (check-in: f221f31e user: dan tags: trunk) | |
| 18:03 | Catch an obscure case of database corruption. (check-in: 0f9b17a6 user: dan tags: trunk) | |
| 14:29 | Fix another bug in 3-way NEAR queries. (check-in: 3bb13a06 user: dan tags: trunk) | |
Changes
Changes to src/btree.c.
5589 5590 5591 5592 5593 5594 5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606 5607 |
/* Copy the b-tree node content from page pFrom to page pTo. */
iData = get2byte(&aFrom[iFromHdr+5]);
memcpy(&aTo[iData], &aFrom[iData], pBt->usableSize-iData);
memcpy(&aTo[iToHdr], &aFrom[iFromHdr], pFrom->cellOffset + 2*pFrom->nCell);
/* Reinitialize page pTo so that the contents of the MemPage structure
** match the new data. The initialization of pTo "cannot" fail, as the
** data copied from pFrom is known to be valid. */
pTo->isInit = 0;
TESTONLY(rc = ) btreeInitPage(pTo);
assert( rc==SQLITE_OK );
/* If this is an auto-vacuum database, update the pointer-map entries
** for any b-tree or overflow pages that pTo now contains the pointers to.
*/
if( ISAUTOVACUUM ){
*pRC = setChildPtrmaps(pTo);
}
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| | > > | | > > > |
5589 5590 5591 5592 5593 5594 5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606 5607 5608 5609 5610 5611 5612 |
/* Copy the b-tree node content from page pFrom to page pTo. */
iData = get2byte(&aFrom[iFromHdr+5]);
memcpy(&aTo[iData], &aFrom[iData], pBt->usableSize-iData);
memcpy(&aTo[iToHdr], &aFrom[iFromHdr], pFrom->cellOffset + 2*pFrom->nCell);
/* Reinitialize page pTo so that the contents of the MemPage structure
** match the new data. The initialization of pTo can actually fail under
** fairly obscure circumstances, even though it is a copy of initialized
** page pFrom.
*/
pTo->isInit = 0;
rc = btreeInitPage(pTo);
if( rc!=SQLITE_OK ){
*pRC = rc;
return;
}
/* If this is an auto-vacuum database, update the pointer-map entries
** for any b-tree or overflow pages that pTo now contains the pointers to.
*/
if( ISAUTOVACUUM ){
*pRC = setChildPtrmaps(pTo);
}
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