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Add the slightly faster sqlite3DbMallocRawNN(db,n) routine for the majority

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cases where db is guaranteed to be not NULL.

FossilOrigin-Name: 0a802e96ab06e2643834b83671fa8353da1a348d
This commit is contained in:
drh
2016-02-05 13:38:36 +00:00
parent 98c7a12c00
commit 575fad6500
22 changed files with 125 additions and 102 deletions
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6
src/where.c
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@@ -1735,7 +1735,7 @@ static int whereLoopResize(sqlite3 *db, WhereLoop *p, int n){
WhereTerm **paNew;
if( p->nLSlot>=n ) return SQLITE_OK;
n = (n+7)&~7;
paNew = sqlite3DbMallocRaw(db, sizeof(p->aLTerm[0])*n);
paNew = sqlite3DbMallocRawNN(db, sizeof(p->aLTerm[0])*n);
if( paNew==0 ) return SQLITE_NOMEM;
memcpy(paNew, p->aLTerm, sizeof(p->aLTerm[0])*p->nLSlot);
if( p->aLTerm!=p->aLTermSpace ) sqlite3DbFree(db, p->aLTerm);
@@ -2032,7 +2032,7 @@ static int whereLoopInsert(WhereLoopBuilder *pBuilder, WhereLoop *pTemplate){
#endif
if( p==0 ){
/* Allocate a new WhereLoop to add to the end of the list */
*ppPrev = p = sqlite3DbMallocRaw(db, sizeof(WhereLoop));
*ppPrev = p = sqlite3DbMallocRawNN(db, sizeof(WhereLoop));
if( p==0 ) return SQLITE_NOMEM;
whereLoopInit(p);
p->pNextLoop = 0;
@@ -3529,7 +3529,7 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){
/* Allocate and initialize space for aTo, aFrom and aSortCost[] */
nSpace = (sizeof(WherePath)+sizeof(WhereLoop*)*nLoop)*mxChoice*2;
nSpace += sizeof(LogEst) * nOrderBy;
pSpace = sqlite3DbMallocRaw(db, nSpace);
pSpace = sqlite3DbMallocRawNN(db, nSpace);
if( pSpace==0 ) return SQLITE_NOMEM;
aTo = (WherePath*)pSpace;
aFrom = aTo+mxChoice;