Add ScopedMutex to automatically lock/unlock a whole scope

engine/CMakeLists.txt

@@ -323,6 +323,7 @@ set (OS_HEADERS
 	os/OsEventQueue.h
 	os/NetAddress.h
 	os/OsTypes.h
+	os/ScopedMutex.h
 )
 
 set (LUA_SRC

engine/Crown.h

@@ -116,6 +116,7 @@ OTHER DEALINGS IN THE SOFTWARE.
 // Engine/Os
 #include "OsThread.h"
 #include "Mutex.h"
+#include "ScopedMutex.h"
 #include "Cond.h"
 #include "OsFile.h"
 #include "OsWindow.h"

engine/os/ScopedMutex.h

@@ -0,0 +1,62 @@
+/*
+Copyright (c) 2013 Daniele Bartolini, Michele Rossi
+Copyright (c) 2012 Daniele Bartolini, Simone Boscaratto
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#pragma once
+
+#include "Mutex.h"
+
+namespace crown
+{
+
+class ScopedMutex
+{
+public:
+
+	//-------------------------------------------------------------------------
+	ScopedMutex(Mutex& m)
+		: m_mutex(m)
+	{
+		m_mutex.lock();
+	}
+
+	//-------------------------------------------------------------------------
+	~ScopedMutex()
+	{
+		m_mutex.unlock();
+	}
+
+private:
+
+	Mutex& m_mutex;
+
+private:
+
+	// Disable copying
+	ScopedMutex(const ScopedMutex&);
+	ScopedMutex& operator=(const ScopedMutex&);
+};
+
+} // namespace crown