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Overview
| Comment: | Avoid unnecessary calls to memset() for a small performance improvement. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
9e8c23acf74944a165c733682a956948 |
| User & Date: | drh 2016-01-18 13:18:54.021 |
Context
|
2016-01-18
| ||
| 17:48 | Add tests for fts5. Fix a crash that can occur in fts5 if the database content is corrupted. (check-in: acaf426449 user: dan tags: trunk) | |
| 13:18 | Avoid unnecessary calls to memset() for a small performance improvement. (check-in: 9e8c23acf7 user: drh tags: trunk) | |
| 09:08 | Add a debugging function to print human-readable versions of fts5 detail=none leaf pages. (check-in: 8358af3658 user: dan tags: trunk) | |
Changes
Changes to src/build.c.
| ︙ | ︙ | |||
3706 3707 3708 3709 3710 3711 3712 |
SrcList *pList, /* Append to this SrcList. NULL creates a new SrcList */
Token *pTable, /* Table to append */
Token *pDatabase /* Database of the table */
){
struct SrcList_item *pItem;
assert( pDatabase==0 || pTable!=0 ); /* Cannot have C without B */
if( pList==0 ){
| | > | 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 |
SrcList *pList, /* Append to this SrcList. NULL creates a new SrcList */
Token *pTable, /* Table to append */
Token *pDatabase /* Database of the table */
){
struct SrcList_item *pItem;
assert( pDatabase==0 || pTable!=0 ); /* Cannot have C without B */
if( pList==0 ){
pList = sqlite3DbMallocRaw(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];
|
| ︙ | ︙ |
Changes to src/expr.c.
| ︙ | ︙ | |||
1131 1132 1133 1134 1135 1136 1137 |
ExprList *sqlite3ExprListAppend(
Parse *pParse, /* Parsing context */
ExprList *pList, /* List to which to append. Might be NULL */
Expr *pExpr /* Expression to be appended. Might be NULL */
){
sqlite3 *db = pParse->db;
if( pList==0 ){
| | > | 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 |
ExprList *sqlite3ExprListAppend(
Parse *pParse, /* Parsing context */
ExprList *pList, /* List to which to append. Might be NULL */
Expr *pExpr /* Expression to be appended. Might be NULL */
){
sqlite3 *db = pParse->db;
if( pList==0 ){
pList = sqlite3DbMallocRaw(db, sizeof(ExprList) );
if( pList==0 ){
goto no_mem;
}
pList->nExpr = 0;
pList->a = sqlite3DbMallocRaw(db, sizeof(pList->a[0]));
if( pList->a==0 ) goto no_mem;
}else if( (pList->nExpr & (pList->nExpr-1))==0 ){
struct ExprList_item *a;
assert( pList->nExpr>0 );
a = sqlite3DbRealloc(db, pList->a, pList->nExpr*2*sizeof(pList->a[0]));
if( a==0 ){
|
| ︙ | ︙ |
Changes to src/select.c.
| ︙ | ︙ | |||
1001 1002 1003 1004 1005 1006 1007 |
}
/*
** Allocate a KeyInfo object sufficient for an index of N key columns and
** X extra columns.
*/
KeyInfo *sqlite3KeyInfoAlloc(sqlite3 *db, int N, int X){
| > | < > | 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 |
}
/*
** Allocate a KeyInfo object sufficient for an index of N key columns and
** X extra columns.
*/
KeyInfo *sqlite3KeyInfoAlloc(sqlite3 *db, int N, int X){
int nExtra = (N+X)*(sizeof(CollSeq*)+1);
KeyInfo *p = sqlite3Malloc(sizeof(KeyInfo) + nExtra);
if( p ){
p->aSortOrder = (u8*)&p->aColl[N+X];
p->nField = (u16)N;
p->nXField = (u16)X;
p->enc = ENC(db);
p->db = db;
p->nRef = 1;
memset(&p[1], 0, nExtra);
}else{
db->mallocFailed = 1;
}
return p;
}
/*
|
| ︙ | ︙ |