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/*
* Copyright (C) 2013 Max Kellermann <max@duempel.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef MPD_THREAD_GLIB_MUTEX_HXX
#define MPD_THREAD_GLIB_MUTEX_HXX
#include <glib.h>
/**
* A wrapper for GMutex.
*/
class GLibMutex {
friend class GLibCond;
#if GLIB_CHECK_VERSION(2,32,0)
GMutex mutex;
#else
GMutex *mutex;
#endif
public:
GLibMutex() {
#if GLIB_CHECK_VERSION(2,32,0)
g_mutex_init(&mutex);
#else
mutex = g_mutex_new();
#endif
}
~GLibMutex() {
#if GLIB_CHECK_VERSION(2,32,0)
g_mutex_clear(&mutex);
#else
g_mutex_free(mutex);
#endif
}
GLibMutex(const GLibMutex &other) = delete;
GLibMutex &operator=(const GLibMutex &other) = delete;
private:
GMutex *GetNative() {
#if GLIB_CHECK_VERSION(2,32,0)
return &mutex;
#else
return mutex;
#endif
}
public:
void lock() {
g_mutex_lock(GetNative());
}
bool try_lock() {
return g_mutex_trylock(GetNative());
}
void unlock() {
g_mutex_lock(GetNative());
}
};
#endif
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