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common/os/Mutex.h

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+/* Copyright 2015 Pierre Ossman for Cendio AB
+ * 
+ * This 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 software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifndef __OS_MUTEX_H__
+#define __OS_MUTEX_H__
+
+namespace os {
+  class Condition;
+
+  class Mutex {
+  public:
+    Mutex();
+    ~Mutex();
+
+    void lock();
+    void unlock();
+
+  private:
+    friend class Condition;
+
+    void* systemMutex;
+  };
+
+  class AutoMutex {
+  public:
+    AutoMutex(Mutex* mutex) { m = mutex; m->lock(); }
+    ~AutoMutex() { m->unlock(); }
+  private:
+    Mutex* m;
+  };
+
+  class Condition {
+  public:
+    Condition(Mutex* mutex);
+    ~Condition();
+
+    void wait();
+
+    void signal();
+    void broadcast();
+
+  private:
+    Mutex* mutex;
+    void* systemCondition;
+  };
+
+}
+
+#endif