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/*
* Copyright (C) 2000-2004 the xine project
*
* This file is part of xine, a free video player.
*
* xine 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.
*
* xine 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
*
* $Id: refcounter.c,v 1.2 2006/09/26 05:19:49 dgp85 Exp $
*
*/
#define LOG_MODULE "refcounter"
#define LOG_VERBOSE
/*
#define LOG
*/
#include "xine_internal.h"
#include "refcounter.h"
refcounter_t* _x_new_refcounter(void *object, void (*destructor)(void *))
{
refcounter_t *new_refcounter;
new_refcounter = (refcounter_t *) xine_xmalloc (sizeof (refcounter_t));
new_refcounter->count = 1;
new_refcounter->object = object;
new_refcounter->destructor = destructor;
pthread_mutex_init (&new_refcounter->lock, NULL);
lprintf("new referenced object %p\n", object);
return new_refcounter;
}
int _x_refcounter_inc(refcounter_t *refcounter)
{
int res;
pthread_mutex_lock(&refcounter->lock);
if (!refcounter->count)
_x_abort();
res = ++refcounter->count;
pthread_mutex_unlock(&refcounter->lock);
return res;
}
int _x_refcounter_dec(refcounter_t *refcounter)
{
int res;
pthread_mutex_lock(&refcounter->lock);
res = --refcounter->count;
pthread_mutex_unlock(&refcounter->lock);
if (!res) {
lprintf("calling destructor of object %p\n", refcounter->object);
refcounter->destructor(refcounter->object);
}
return res;
}
void _x_refcounter_dispose(refcounter_t *refcounter)
{
pthread_mutex_destroy (&refcounter->lock);
free(refcounter);
}
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