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+/*
+ *  The Mana Client
+ *  Copyright (C) 2008-2009  The Mana World Development Team
+ *  Copyright (C) 2009-2010  The Mana Developers
+ *
+ *  This file is part of The Mana Client.
+ *
+ *  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
+ *  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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MUTEX_H
+#define MUTEX_H
+
+#include <SDL_thread.h>
+
+/**
+ * A mutex provides mutual exclusion of access to certain data that is
+ * accessed by multiple threads.
+ */
+class Mutex
+{
+public:
+    Mutex();
+    ~Mutex();
+
+    void lock();
+    void unlock();
+
+private:
+    Mutex(const Mutex&);  // prevent copying
+    Mutex& operator=(const Mutex&);
+
+    SDL_mutex *mMutex;
+};
+
+/**
+ * A convenience class for locking a mutex.
+ */
+class MutexLocker
+{
+public:
+    MutexLocker(Mutex *mutex);
+    ~MutexLocker();
+
+private:
+    Mutex *mMutex;
+};
+
+
+inline Mutex::Mutex()
+{
+    mMutex = SDL_CreateMutex();
+}
+
+inline Mutex::~Mutex()
+{
+    SDL_DestroyMutex(mMutex);
+}
+
+inline void Mutex::lock()
+{
+}
+
+inline void Mutex::unlock()
+{
+}
+
+
+inline MutexLocker::MutexLocker(Mutex *mutex):
+    mMutex(mutex)
+{
+    mMutex->lock();
+}
+
+inline MutexLocker::~MutexLocker()
+{
+    mMutex->unlock();
+}
+
+#endif // MUTEX_H