Initial commit.

This code based on mana client http://www.gitorious.org/mana/mana
and my private repository.

1 files changed, 97 insertions, 0 deletions

diff --git a/src/utils/mutex.h b/src/utils/mutex.h
new file mode 100644
index 000000000..f98bcdfec
--- /dev/null
+++ b/src/utils/mutex.h
@@ -0,0 +1,97 @@
+/*
+ *  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 "log.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()
+{
+    if (SDL_mutexP(mMutex) == -1)
+        logger->log("Mutex locking failed: %s", SDL_GetError());
+}
+
+inline void Mutex::unlock()
+{
+    if (SDL_mutexV(mMutex) == -1)
+        logger->log("Mutex unlocking failed: %s", SDL_GetError());
+}
+
+
+inline MutexLocker::MutexLocker(Mutex *mutex):
+    mMutex(mutex)
+{
+    mMutex->lock();
+}
+
+inline MutexLocker::~MutexLocker()
+{
+    mMutex->unlock();
+}
+
+#endif // MUTEX_H