/*
 *   GRacer
 *
 *   Copyright (C) 1999 Takashi Matsuda <matsu@users.sourceforge.net>
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

#ifndef __GRACER_MEMORY_H__
#define __GRACER_MEMORY_H__

#ifdef __cplusplus
extern "C" {
#endif
#if 0
}
#endif

#include <stdlib.h>

#define gr_new(type,num)	(type *) malloc (sizeof(type) * (num))
#define gr_new0(type,num)	(type *) __malloc0 (sizeof(type) * (num))
#define gr_renew(ptr,type,num)	(type *) realloc (ptr, sizeof(type) * (num))

void*	__malloc0		(size_t size);

typedef struct GrSList {
  struct GrSList *next;
  void *data;
} GrSList;

typedef struct GrDList {
  struct GrDList *prev, *next;
  void *data;
} GrDList;

typedef struct GrRef GrRef;
typedef void (*GrRefFreeFunc) (GrRef *ref);

struct GrRef {
  int count;
  GrRefFreeFunc free_func;
};


GrSList*	gr_slist_prepend	(GrSList *top, void *data);
GrSList*	gr_slist_append		(GrSList *top, void *data);
GrSList*	gr_slist_remove		(GrSList *list);

void	gr_slist_free			(GrSList *list);
void	gr_dlist_free			(GrDList *list);

#define gr_FOREACH(l,p) \
  for (; (l) != NULL && ((p) = (l)->data, 1); (l) = (l)->next) 

void	gr_ref_incr			(GrRef *ref);
void	gr_ref_decr			(GrRef *ref);

#define gr_INCREF(x)		gr_ref_incr ((GrRef *) (x))
#define gr_DECREF(x)		gr_ref_decr ((GrRef *) (x))
#define gr_FREE_FUNC(x,f)	\
  (((GrRef *) (x))->free_func = ((GrRefFreeFunc) f))

#ifdef __cplusplus
}
#endif

#endif /* __GRACER_MEMORY_H__ */