Merged branch threadingengine with master - Added a threading engine

include/threadengine.h

@@ -0,0 +1,116 @@
+#ifdef _WIN32
+typedef HANDLE ThreadHandle;
+typedef CRITICAL_SECTION MutexHandle;
+typedef HANDLE CondHandle;
+#else
+# include <pthread.h>
+typedef pthread_t ThreadHandle;
+typedef pthread_mutex_t MutexHandle;
+typedef pthread_cond_t CondHandle;
+#endif
+
+class ThreadEngine;
+class Thread;
+
+extern CoreExport ThreadEngine threadEngine;
+
+class ThreadEngine
+{
+ public:
+	/** Threadengines constructor
+	 */
+	ThreadEngine();
+
+	/** Threadengines destructor
+	 */
+	~ThreadEngine();
+
+	/** Start a new thread
+	 * @param thread A pointer to a newley allocated thread
+	 */
+	void Start(Thread *thread);
+};
+
+class Thread : public Extensible
+{
+ private:
+	/* Set to true to tell the thread to finish and we are waiting for it */
+	bool Exit; 
+
+	/** Join to the thread, sets the exit state to true
+	 */
+	void Join();
+ public:
+ 	/* Handle for this thread */
+	ThreadHandle Handle;
+
+	/** Threads constructor
+	 */
+	Thread();
+
+	/** Threads destructor
+	 */
+	virtual ~Thread();
+
+	/** Sets the exit state as true informing the thread we want it to shut down
+	 */
+	void SetExitState();
+
+	/** Returns the exit state of the thread
+	 * @return true if we want to exit
+	 */
+	bool GetExitState() const;
+
+	/** Called to run the thread, should be overloaded
+	 */
+	virtual void Run();
+};
+
+class Mutex
+{
+ protected:
+	/* A mutex, used to keep threads in sync */
+	MutexHandle mutex;
+
+ public:
+	/** Constructor
+	 */
+ 	Mutex();
+
+	/** Destructor
+	 */
+	~Mutex();
+
+	/** Attempt to lock the mutex, will hang until a lock can be achieved
+	 */
+	void Lock();
+
+	/** Unlock the mutex, it must be locked first
+	 */
+	void Unlock();
+};
+
+class Condition : public Mutex
+{
+ private:
+	/* A condition */
+	CondHandle cond;
+
+ public:
+	/** Constructor
+	 */
+	Condition();
+
+	/** Destructor
+	 */
+	~Condition();
+
+	/** Called to wakeup the waiter
+	 */
+	void Wakeup();
+
+	/** Called to wait for a Wakeup() call
+	 */
+	void Wait();
+};
+