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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