From 1f917e709ca3fe41cf07fd4bf99a080883521394 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Tue, 6 Feb 2001 14:01:29 -0200
Subject: better use of extra include files (both for tests and for old_ansi)

---
 lmem.c | 115 ++++-------------------------------------------------------------
 1 file changed, 6 insertions(+), 109 deletions(-)

(limited to 'lmem.c')

diff --git a/lmem.c b/lmem.c
index bce76029..f2ccac72 100644
--- a/lmem.c
+++ b/lmem.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lmem.c,v 1.44 2001/01/24 15:45:33 roberto Exp roberto $
+** $Id: lmem.c,v 1.45 2001/02/05 19:08:01 roberto Exp roberto $
 ** Interface to Memory Manager
 ** See Copyright Notice in lua.h
 */
@@ -16,115 +16,12 @@
 
 
 
-
-#ifdef LUA_DEBUG
-/*
-** {======================================================================
-** Controlled version for realloc.
-** =======================================================================
-*/
-
-
-#include <assert.h>
-#include <limits.h>
-#include <string.h>
-
-#define basicrealloc(b, os, s)	debug_realloc(b, os, s)
-#define basicfree(b, s)		debug_realloc(b, s, 0)
-
-
-/* ensures maximum alignment for HEADER */
-#define HEADER	(sizeof(union L_Umaxalign))
-
-#define MARKSIZE	32
-#define MARK		0x55  /* 01010101 (a nice pattern) */
-
-
-#define blocksize(b)	((size_t *)((char *)(b) - HEADER))
-
-unsigned long memdebug_numblocks = 0;
-unsigned long memdebug_total = 0;
-unsigned long memdebug_maxmem = 0;
-unsigned long memdebug_memlimit = ULONG_MAX;
-
-
-static void *checkblock (void *block) {
-  size_t *b = blocksize(block);
-  size_t size = *b;
-  int i;
-  for (i=0;i<MARKSIZE;i++)
-    assert(*(((char *)b)+HEADER+size+i) == MARK+i);  /* corrupted block? */
-  return b;
-}
-
-
-static void freeblock (void *block) {
-  if (block) {
-    size_t size = *blocksize(block);
-    block = checkblock(block);
-    memset(block, -1, size+HEADER+MARKSIZE);  /* erase block */
-    free(block);  /* free original block */
-    memdebug_numblocks--;
-    memdebug_total -= size;
-  }
-}
-
-
-static void *debug_realloc (void *block, size_t oldsize, size_t size) {
-  assert((oldsize == 0) ? block == NULL : oldsize == *blocksize(block));
-  if (size == 0) {
-    freeblock(block);
-    return NULL;
-  }
-  else if (memdebug_total+size > memdebug_memlimit)
-    return NULL;  /* to test memory allocation errors */
-  else {
-    char *newblock;
-    int i;
-    size_t realsize = HEADER+size+MARKSIZE;
-    if (realsize < size) return NULL;  /* overflow! */
-    newblock = (char *)malloc(realsize);  /* alloc a new block */
-    if (newblock == NULL) return NULL;
-    if (oldsize > size) oldsize = size;
-    if (block) {
-      memcpy(newblock+HEADER, block, oldsize);
-      freeblock(block);  /* erase (and check) old copy */
-    }
-    /* initialize new part of the block with something `weird' */
-    memset(newblock+HEADER+oldsize, -MARK, size-oldsize);
-    memdebug_total += size;
-    if (memdebug_total > memdebug_maxmem)
-      memdebug_maxmem = memdebug_total;
-    memdebug_numblocks++;
-    *(size_t *)newblock = size;
-    for (i=0;i<MARKSIZE;i++)
-      *(newblock+HEADER+size+i) = (char)(MARK+i);
-    return newblock+HEADER;
-  }
-}
-
-
-/* }====================================================================== */
-
-#else
-/* no debug */
-
-/*
-** Real ISO (ANSI) systems do not need these tests;
-** but some systems (Sun OS) are not that ISO...
-*/
-#ifdef OLD_ANSI
-#define basicrealloc(b,os,s)	((b) == NULL ? malloc(s) : realloc(b, s))
-#define basicfree(b,s)		if (b) free(b)
-#else
-#define basicrealloc(b,os,s)	realloc(b,s)
-#define basicfree(b,s)		free(b)
-
+#ifndef l_realloc
+#define l_realloc(b,os,s)	realloc(b,s)
+#define l_free(b,s)		free(b)
 #endif
 
 
-#endif
-
 void *luaM_growaux (lua_State *L, void *block, int *size, int size_elems,
                     int limit, const char *errormsg) {
   void *newblock;
@@ -148,13 +45,13 @@ void *luaM_growaux (lua_State *L, void *block, int *size, int size_elems,
 */
 void *luaM_realloc (lua_State *L, void *block, luint32 oldsize, luint32 size) {
   if (size == 0) {
-    basicfree(block, oldsize);  /* block may be NULL; that is OK for free */
+    l_free(block, oldsize);  /* block may be NULL; that is OK for free */
     block = NULL;
   }
   else if (size >= MAX_SIZET)
     luaD_error(L, "memory allocation error: block too big");
   else {
-    block = basicrealloc(block, oldsize, size);
+    block = l_realloc(block, oldsize, size);
     if (block == NULL) {
       if (L)
         luaD_breakrun(L, LUA_ERRMEM);  /* break run without error message */
-- 
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