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Overview
| Comment: | Updates to a comment to keep it in alignment to the changes on this branch. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | deferred-free-space |
| Files: | files | file ages | folders |
| SHA3-256: |
7499f74351415e601eb48eff6b6fccd3 |
| User & Date: | drh 2019-02-11 12:51:39 |
Context
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2019-02-11
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| 17:22 | Fix test cases. Avoid unnecessary tests for MemPage.nFree less than zero. check-in: 480a5090 user: drh tags: deferred-free-space | |
| 12:51 | Updates to a comment to keep it in alignment to the changes on this branch. check-in: 7499f743 user: drh tags: deferred-free-space | |
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2019-02-09
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| 22:33 | Fix a page-cache reference leak in the btree balancer when there is a corrupt database. check-in: 92858991 user: drh tags: deferred-free-space | |
Changes
Changes to src/btree.c.
1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 |
** or fewer fragmented bytes. In this case it is faster to move the
** two (or one) blocks of cells using memmove() and add the required
** offsets to each pointer in the cell-pointer array than it is to
** reconstruct the entire page. */
if( (int)data[hdr+7]<=nMaxFrag ){
int iFree = get2byte(&data[hdr+1]);
/* If the initial freeblock offset were out of bounds, that would
** have been detected by btreeInitPage() when it was computing the
** number of free bytes on the page. */
assert( iFree<=usableSize-4 );
if( iFree ){
int iFree2 = get2byte(&data[iFree]);
if( iFree2>usableSize-4 ) return SQLITE_CORRUPT_PAGE(pPage);
if( 0==iFree2 || (data[iFree2]==0 && data[iFree2+1]==0) ){
u8 *pEnd = &data[cellOffset + nCell*2];
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1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 |
** or fewer fragmented bytes. In this case it is faster to move the
** two (or one) blocks of cells using memmove() and add the required
** offsets to each pointer in the cell-pointer array than it is to
** reconstruct the entire page. */
if( (int)data[hdr+7]<=nMaxFrag ){
int iFree = get2byte(&data[hdr+1]);
/* If the initial freeblock offset were out of bounds, that would have
** been detected by btreeComputeFreeSpace() when it was computing the
** number of free bytes on the page. */
assert( iFree<=usableSize-4 );
if( iFree ){
int iFree2 = get2byte(&data[iFree]);
if( iFree2>usableSize-4 ) return SQLITE_CORRUPT_PAGE(pPage);
if( 0==iFree2 || (data[iFree2]==0 && data[iFree2+1]==0) ){
u8 *pEnd = &data[cellOffset + nCell*2];
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