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Implement the "lookaside" memory allocation cache. Use of this cache makes

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the speed1.test script run about 15% faster.  Added new interfaces to
control the cache. (CVS 5488)

FossilOrigin-Name: e48f9697e9fea339e150ddc32940760027dd07d9
This commit is contained in:
drh
2008-07-28 19:34:53 +00:00
parent 78bd9ca86f
commit 633e6d57d9
50 changed files with 999 additions and 624 deletions
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12
src/callback.c
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@@ -13,7 +13,7 @@
** This file contains functions used to access the internal hash tables
** of user defined functions and collation sequences.
**
** $Id: callback.c,v 1.25 2008/07/08 14:52:10 drh Exp $
** $Id: callback.c,v 1.26 2008/07/28 19:34:53 drh Exp $
*/
#include "sqliteInt.h"
@@ -30,7 +30,7 @@ static void callCollNeeded(sqlite3 *db, const char *zName, int nName){
char *zExternal = sqlite3DbStrNDup(db, zName, nName);
if( !zExternal ) return;
db->xCollNeeded(db->pCollNeededArg, db, (int)ENC(db), zExternal);
sqlite3_free(zExternal);
sqlite3DbFree(db, zExternal);
}
#ifndef SQLITE_OMIT_UTF16
if( db->xCollNeeded16 ){
@@ -182,7 +182,7 @@ static CollSeq *findCollSeqEntry(
assert( pDel==0 || pDel==pColl );
if( pDel!=0 ){
db->mallocFailed = 1;
sqlite3_free(pDel);
sqlite3DbFree(db, pDel);
pColl = 0;
}
}
@@ -312,7 +312,7 @@ FuncDef *sqlite3FindFunction(
pBest->zName[nName] = 0;
if( pBest==sqlite3HashInsert(&db->aFunc,pBest->zName,nName,(void*)pBest) ){
db->mallocFailed = 1;
sqlite3_free(pBest);
sqlite3DbFree(db, pBest);
return 0;
}
}
@@ -325,7 +325,7 @@ FuncDef *sqlite3FindFunction(
/*
** Free all resources held by the schema structure. The void* argument points
** at a Schema struct. This function does not call sqlite3_free() on the
** at a Schema struct. This function does not call sqlite3DbFree(db, ) on the
** pointer itself, it just cleans up subsiduary resources (i.e. the contents
** of the schema hash tables).
**
@@ -343,7 +343,7 @@ void sqlite3SchemaFree(void *p){
sqlite3HashClear(&pSchema->aFKey);
sqlite3HashClear(&pSchema->idxHash);
for(pElem=sqliteHashFirst(&temp2); pElem; pElem=sqliteHashNext(pElem)){
sqlite3DeleteTrigger((Trigger*)sqliteHashData(pElem));
sqlite3DeleteTrigger(0, (Trigger*)sqliteHashData(pElem));
}
sqlite3HashClear(&temp2);
sqlite3HashInit(&pSchema->tblHash, SQLITE_HASH_STRING, 0);