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Make use of sqlite3DbMallocSize to maximize the size of growable buffers

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after each reallocation.  Added new comments and testcase() macros to
where.c. (CVS 5981)

FossilOrigin-Name: 46f2d08959423e130a5b346138311649d92f0fde
This commit is contained in:
drh
2008-12-05 15:24:15 +00:00
parent 165be38b82
commit 6a1e071f3d
7 changed files with 52 additions and 29 deletions
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6
src/malloc.c
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@@ -12,7 +12,7 @@
**
** Memory allocation functions used throughout sqlite.
**
** $Id: malloc.c,v 1.48 2008/11/19 09:05:27 danielk1977 Exp $
** $Id: malloc.c,v 1.49 2008/12/05 15:24:17 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
@@ -505,7 +505,9 @@ int sqlite3MallocSize(void *p){
return sqlite3GlobalConfig.m.xSize(p);
}
int sqlite3DbMallocSize(sqlite3 *db, void *p){
if( isLookaside(db, p) ){
if( p==0 ){
return 0;
}else if( isLookaside(db, p) ){
return db->lookaside.sz;
}else{
return sqlite3GlobalConfig.m.xSize(p);