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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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11
src/util.c
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@@ -14,7 +14,7 @@
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
** $Id: util.c,v 1.240 2008/07/24 17:06:48 drh Exp $
** $Id: util.c,v 1.241 2008/07/28 19:34:54 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
@@ -98,7 +98,7 @@ void sqlite3Error(sqlite3 *db, int err_code, const char *zFormat, ...){
va_start(ap, zFormat);
z = sqlite3VMPrintf(db, zFormat, ap);
va_end(ap);
sqlite3ValueSetStr(db->pErr, -1, z, SQLITE_UTF8, sqlite3_free);
sqlite3ValueSetStr(db->pErr, -1, z, SQLITE_UTF8, SQLITE_DYNAMIC);
}else{
sqlite3ValueSetStr(db->pErr, 0, 0, SQLITE_UTF8, SQLITE_STATIC);
}
@@ -124,10 +124,11 @@ void sqlite3Error(sqlite3 *db, int err_code, const char *zFormat, ...){
*/
void sqlite3ErrorMsg(Parse *pParse, const char *zFormat, ...){
va_list ap;
sqlite3 *db = pParse->db;
pParse->nErr++;
sqlite3_free(pParse->zErrMsg);
sqlite3DbFree(db, pParse->zErrMsg);
va_start(ap, zFormat);
pParse->zErrMsg = sqlite3VMPrintf(pParse->db, zFormat, ap);
pParse->zErrMsg = sqlite3VMPrintf(db, zFormat, ap);
va_end(ap);
if( pParse->rc==SQLITE_OK ){
pParse->rc = SQLITE_ERROR;
@@ -138,7 +139,7 @@ void sqlite3ErrorMsg(Parse *pParse, const char *zFormat, ...){
** Clear the error message in pParse, if any
*/
void sqlite3ErrorClear(Parse *pParse){
sqlite3_free(pParse->zErrMsg);
sqlite3DbFree(pParse->db, pParse->zErrMsg);
pParse->zErrMsg = 0;
pParse->nErr = 0;
}