Exit a method if another thread is executing it

Question

I have a method in a multi-threaded application and I\'d like the following behavior when this method is invoked:

1. If no other threads are currently executing the m

Answer 1

I suppose I don't understand... if it should only be called by one thread at a time, why are multiple threads calling it to begin with?

Anyway, you can use Monitor.TryEnter(). It doesn't block and returns false if it fails to acquire a lock. In that case you can just return from the function.