/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            debug.h
 *
 *  Tue Apr 12 14:34:20 CEST 2005
 *  Copyright  2005 Bent Bisballe
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *    This file is part of MIaV.
 *
 *    MIaV is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    MIaV 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 General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with MIaV; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "config.h"
#ifndef __MIAV_DEBUG_H__
#define __MIAV_DEBUG_H__

//#define DEBUG_ALLOC

#ifdef DEBUG_ALLOC
typedef struct _A_{
  struct _A_* prev;
  struct _A_* next;
  char name[32];
  void *addr;
} __debug__;

__debug__ *debug_first = NULL;

inline void debugAlloc(void *p, char* name)
{
  __debug__ *d = debug_first;
  
  fprintf(stderr, "Adding %d - %s\n", p, name);

  debug_first = (__debug__*)malloc(sizeof(__debug__));
  debug_first->prev = NULL;
  debug_first->next = d;
  if(d) d->prev = debug_first;
  debug_first->addr = p;
  strcpy(debug_first->name, name);
}

inline void debugFree(void *p)
{
  __debug__ *d = debug_first;

  while(d && d->addr != p) {
    d = d->next;
  }
    
  if(!d) {
    fprintf(stderr, "ERROR: memory address not found %d - perhaps already freed!\n", p);
    exit(1);
  }

  fprintf(stderr, "Removing %d - %s\n", p, d->name);
  __debug__ *next = d->next;
  __debug__ *prev = d->prev;
  if(prev) prev->next = d->next;
  if(next) next->prev = d->prev;
  if(debug_first == d) debug_first = next;
  free(d);
}

inline void debugPrint()
{
  __debug__ *d = debug_first;
  
  fprintf(stderr, "Alloc List:\n");

  while(d) {
    fprintf(stderr, "\t[%d] %s\n", d->addr, d->name);
    d = d->next;
  }
}

#define FREE(x) debugFree(x) 
#define ALLOC(x, y) debugAlloc(x, y)
#define PRINT() debugPrint()

#else/*DEBUG_ALLOC*/

#define FREE(x) {}
#define ALLOC(x, y) {}
#define PRINT() {}

#endif/*DEBUG_ALLOC*/

#endif/*__MIAV_DEBUG_H__*/