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/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* Copyright (C) 2008 Max Kellermann <max@duempel.org>
* This project's homepage is: http://www.musicpd.org
*
* 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
*/
#include "condition.h"
#include "utils.h"
#include "log.h"
#include <sys/time.h>
#include <string.h>
void cond_init(struct condition *cond)
{
cond->mutex = g_mutex_new();
if (cond->mutex == NULL)
FATAL("g_mutex_new failed");
cond->cond = g_cond_new();
if (cond->cond == NULL)
FATAL("g_cond_new() failed");
}
void cond_enter(struct condition *cond)
{
g_mutex_lock(cond->mutex);
}
void cond_leave(struct condition *cond)
{
g_mutex_unlock(cond->mutex);
}
void cond_wait(struct condition *cond)
{
g_cond_wait(cond->cond, cond->mutex);
}
int cond_timedwait(struct condition *cond, const long sec)
{
GTimeVal t;
g_get_current_time(&t);
g_time_val_add(&t, sec * 1000000);
if (g_cond_timed_wait(cond->cond, cond->mutex, &t) == FALSE)
return ETIMEDOUT;
return 0;
}
int cond_signal_async(struct condition *cond)
{
if (g_mutex_trylock(cond->mutex) == FALSE) {
g_cond_signal(cond->cond);
g_mutex_unlock(cond->mutex);
return 0;
}
return EBUSY;
}
void cond_signal_sync(struct condition *cond)
{
g_cond_signal(cond->cond);
}
void cond_destroy(struct condition *cond)
{
g_mutex_free(cond->mutex);
g_cond_free(cond->cond);
}
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