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/*
* mplib - a library that enables you to edit ID3 tags
* Copyright (C) 2001,2002 Stefan Podkowinski
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; version 2.1.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <sys/types.h>
#include <stdio.h>
/* define XMALLOC_CHECK 1 */
#include "xmalloc.h"
#ifdef USE_GC
# include <gc.h>
# define malloc(str) GC_MALLOC(str)
#endif
#ifdef XMALLOC_CHECK
typedef struct _xdelem {
void* alloced;
void* freed;
char* descrl;
struct _xdelem* next;
} xdelem;
xdelem* first = NULL;
#endif
#define errmsg "mplib: Memory exhausted: Could not allocate %d bytes\n"
void *
xmalloc(size_t s)
{
return xmallocd(s, NULL);
}
void *
xmallocd(size_t s, char* descrl)
{
void *new = (void*)malloc(s);
#ifdef XMALLOC_CHECK
xdelem* cur = (xdelem*)malloc(sizeof(xdelem));
cur->next = NULL;
cur->freed = NULL;
cur->descrl = descrl;
#endif
if(!new) fprintf(stderr, errmsg, s);
#ifdef XMALLOC_CHECK
cur->alloced = new;
exists:
if(!first) first = cur;
else {
xdelem* last = first;
do {
if(last->alloced == cur->alloced) {
last->freed = NULL;
last->descrl = descrl;
free(cur);
goto exists;
}
} while(last->next && (last = last->next));
last->next = cur;
}
#endif
return new;
}
void *
xmallocd0(size_t s, char* descr)
{
#ifdef XMALLOC_CHECK
void *new = (void*)xmallocd(s, descr);
#else
void *new = (void*)malloc(s);
#endif
if(!new) fprintf(stderr, errmsg, s);
else memset(new, 0, s);
return new;
}
void *
xmalloc0(size_t s)
{
#ifdef XMALLOC_CHECK
void *new = (void*)xmalloc(s);
#else
void *new = (void*)malloc(s);
#endif
if(!new) fprintf(stderr, errmsg, s);
else memset(new, 0, s);
return new;
}
void *
xrealloc(void * ptr, size_t s)
{
void *new;
if(!ptr) return xmalloc(s);
new = (void*)realloc(ptr, s);
if(!new) fprintf(stderr, errmsg, s);
return new;
}
void
xfree(void* ptr) {
if(!ptr) return;
#ifdef XMALLOC_CHECK
if(first) {
xdelem* el = first;
do {
if(el->freed == ptr) {
if(el->descrl)
printf("XMALLOC: (%s) memory allready freed\n", el->descrl);
else
printf("XMALLOC: memory allready freed at %h\n", ptr);
break;
}
if(el->alloced == ptr) {
el->freed = ptr;
break;
}
} while(el->next && (el = el->next));
}
#endif
free(ptr);
}
#ifdef XMALLOC_CHECK
void
xprint_malloc_stat(void) {
long kb_alloc = 0;
long kb_freed = 0;
long kb_used = 0;
int count_used = 0;
xdelem* el = first;
if(!first) {
puts("XMALLOC: No statistic available");
}
puts("xmalloc statistic:");
do {
if(!el->freed) {
if(el->descrl && !strstr(el->descrl, "ignore"))
printf("%s (not freed)\n", el->descrl);
else if(!el->descrl) printf("%p (not freed)\n", el->alloced);
} else {
//if(el->descrl) printf("%s (freed)\n", el->descrl);
//else printf("%p (freed)\n", el->alloced);
}
} while(el->next && (el = el->next));
}
#endif
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