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Overview
| Comment: | Add assert() statements to verify that u16 pointers associated with the enhancement in [897f56a158] are always 2-byte aligned. |
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| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
98ccfa930e8e5f10808a518e3e22e85e |
| User & Date: | drh 2011-06-06 13:38:11.704 |
Context
|
2011-06-07
| ||
| 18:31 | Fix a comment type on the description of the Schema object. (check-in: 095cd9a6ec user: drh tags: trunk) | |
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2011-06-06
| ||
| 18:14 | Merge the latest trunk changes into the fts3-prefix-search branch. (check-in: 567dd84359 user: drh tags: fts3-prefix-search) | |
| 13:38 | Add assert() statements to verify that u16 pointers associated with the enhancement in [897f56a158] are always 2-byte aligned. (check-in: 98ccfa930e user: drh tags: trunk) | |
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2011-06-04
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| 01:43 | Performance improvement to the btree search routine. (check-in: 65db822f20 user: drh tags: trunk) | |
Changes
Changes to src/btree.c.
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}
rc = freeSpace(pPage, pc, sz);
if( rc ){
*pRC = rc;
return;
}
endPtr = &data[pPage->cellOffset + 2*pPage->nCell - 2];
while( ptr<endPtr ){
*(u16*)ptr = *(u16*)&ptr[2];
ptr += 2;
}
pPage->nCell--;
put2byte(&data[hdr+3], pPage->nCell);
pPage->nFree += 2;
| > | 5417 5418 5419 5420 5421 5422 5423 5424 5425 5426 5427 5428 5429 5430 5431 |
}
rc = freeSpace(pPage, pc, sz);
if( rc ){
*pRC = rc;
return;
}
endPtr = &data[pPage->cellOffset + 2*pPage->nCell - 2];
assert( (SQLITE_PTR_TO_INT(ptr)&1)==0 ); /* ptr is always 2-byte aligned */
while( ptr<endPtr ){
*(u16*)ptr = *(u16*)&ptr[2];
ptr += 2;
}
pPage->nCell--;
put2byte(&data[hdr+3], pPage->nCell);
pPage->nFree += 2;
|
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pPage->nFree -= (u16)(2 + sz);
memcpy(&data[idx+nSkip], pCell+nSkip, sz-nSkip);
if( iChild ){
put4byte(&data[idx], iChild);
}
ptr = &data[end];
endPtr = &data[ins];
while( ptr>endPtr ){
*(u16*)ptr = *(u16*)&ptr[-2];
ptr -= 2;
}
put2byte(&data[ins], idx);
put2byte(&data[pPage->hdrOffset+3], pPage->nCell);
#ifndef SQLITE_OMIT_AUTOVACUUM
| > | 5513 5514 5515 5516 5517 5518 5519 5520 5521 5522 5523 5524 5525 5526 5527 |
pPage->nFree -= (u16)(2 + sz);
memcpy(&data[idx+nSkip], pCell+nSkip, sz-nSkip);
if( iChild ){
put4byte(&data[idx], iChild);
}
ptr = &data[end];
endPtr = &data[ins];
assert( (SQLITE_PTR_TO_INT(ptr)&1)==0 ); /* ptr is always 2-byte aligned */
while( ptr>endPtr ){
*(u16*)ptr = *(u16*)&ptr[-2];
ptr -= 2;
}
put2byte(&data[ins], idx);
put2byte(&data[pPage->hdrOffset+3], pPage->nCell);
#ifndef SQLITE_OMIT_AUTOVACUUM
|
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