template <class T>
class threadSafe {
public:
	threadSafe() 		{}
	threadSafe(T v) 	{val = v;}
	void operator=(T v)	{BarrierWrite(val, v);}
	operator T() 		{return ReadWithBarrier(val);}
   
private:
	volatile T val;
};

threadSafe<int> val = 23;
double d = val + 3.5;

// Main thread
threadSafe<bool> thread1Busy;

// Thread 1
thread1Busy = true;
...
thread1Busy = false;

// Thread 2
...
while (thread1Busy)
	Sleep(100);
...