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longer marks when controling memory leaks

This commit is contained in:
Roberto Ierusalimschy 1999-05-20 17:43:06 -03:00
parent c8d219798a
commit 48326500d0
1 changed files with 7 additions and 5 deletions
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12
lmem.c
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@ -1,5 +1,5 @@
/*
** $Id: lmem.c,v 1.14 1999/03/01 17:49:13 roberto Exp roberto $
** $Id: lmem.c,v 1.15 1999/05/11 14:18:40 roberto Exp roberto $
** Interface to Memory Manager
** See Copyright Notice in lua.h
*/
@ -83,6 +83,7 @@ void *luaM_growaux (void *block, unsigned long nelems, int inc, int size,
#define HEADER (sizeof(double))
#define MARKSIZE 32
#define MARK 55
@ -93,8 +94,9 @@ unsigned long totalmem = 0;
static void *checkblock (void *block) {
unsigned long *b = (unsigned long *)((char *)block - HEADER);
unsigned long size = *b;
LUA_ASSERT(*(((char *)b)+size+HEADER) == MARK,
"corrupted block");
int i;
for (i=0;i<MARKSIZE;i++)
LUA_ASSERT(*(((char *)b)+size+HEADER+i) == MARK+i, "corrupted block");
numblocks--;
totalmem -= size;
return b;
@ -102,7 +104,7 @@ static void *checkblock (void *block) {
void *luaM_realloc (void *block, unsigned long size) {
unsigned long realsize = HEADER+size+1;
unsigned long realsize = HEADER+size+MARKSIZE;
if (realsize != (size_t)realsize)
lua_error("memory allocation error: block too big");
if (size == 0) {
@ -122,7 +124,7 @@ void *luaM_realloc (void *block, unsigned long size) {
totalmem += size;
numblocks++;
*(unsigned long *)block = size;
*(((char *)block)+size+HEADER) = MARK;
{ int i; for (i=0;i<MARKSIZE;i++) *(((char *)block)+size+HEADER+i) = MARK+i; }
return (unsigned long *)((char *)block+HEADER);
}