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Overview
| Comment: | Three times faster sqlite3SrcListAppend() in the common case by avoiding the call to sqlite3SrcListEnlarge() for the first allocation. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
0ea2762f1d8f6a93ae2ee3b7b835927a |
| User & Date: | drh 2016-12-14 11:14:13 |
Context
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2016-12-14
| ||
| 11:23 | Adjust the unix makefiles so that "make test" runs fuzzcheck prior to even attempting to build the other test programs. (check-in: bb48f7a5 user: drh tags: trunk) | |
| 11:14 | Three times faster sqlite3SrcListAppend() in the common case by avoiding the call to sqlite3SrcListEnlarge() for the first allocation. (check-in: 0ea2762f user: drh tags: trunk) | |
| 10:30 | Fix the optimization that prevents writing freelist pages to the journal. (check-in: 6aa9b265 user: drh tags: trunk) | |
Changes
Changes to src/build.c.
3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 |
struct SrcList_item *pItem;
assert( pDatabase==0 || pTable!=0 ); /* Cannot have C without B */
assert( db!=0 );
if( pList==0 ){
pList = sqlite3DbMallocRawNN(db, sizeof(SrcList) );
if( pList==0 ) return 0;
pList->nAlloc = 1;
pList->nSrc = 0;
}
pList = sqlite3SrcListEnlarge(db, pList, 1, pList->nSrc);
if( db->mallocFailed ){
sqlite3SrcListDelete(db, pList);
return 0;
}
pItem = &pList->a[pList->nSrc-1];
if( pDatabase && pDatabase->z==0 ){
pDatabase = 0;
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| < > > > | > |
3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 |
struct SrcList_item *pItem;
assert( pDatabase==0 || pTable!=0 ); /* Cannot have C without B */
assert( db!=0 );
if( pList==0 ){
pList = sqlite3DbMallocRawNN(db, sizeof(SrcList) );
if( pList==0 ) return 0;
pList->nAlloc = 1;
pList->nSrc = 1;
memset(&pList->a[0], 0, sizeof(pList->a[0]));
pList->a[0].iCursor = -1;
}else{
pList = sqlite3SrcListEnlarge(db, pList, 1, pList->nSrc);
}
if( db->mallocFailed ){
sqlite3SrcListDelete(db, pList);
return 0;
}
pItem = &pList->a[pList->nSrc-1];
if( pDatabase && pDatabase->z==0 ){
pDatabase = 0;
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