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/*
* Copyright (C) 2003-2011 The Music Player Daemon Project
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/** \file
*
* Support for locking data structures from the database, for safe
* multi-threading.
*/
#ifndef MPD_DB_LOCK_H
#define MPD_DB_LOCK_H
#include "check.h"
#include <glib.h>
#include <assert.h>
extern GStaticMutex db_mutex;
/**
* Obtain the global database lock. This is needed before
* dereferencing a #song or #directory. It is not recursive.
*/
static inline void
db_lock(void)
{
g_static_mutex_lock(&db_mutex);
}
/**
* Release the global database lock.
*/
static inline void
db_unlock(void)
{
g_static_mutex_unlock(&db_mutex);
}
#endif
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