Is there a way to ensure atomicity while having a multithreaded program with signal handlers?

Question

If I have a program like this (in pseudocode):

mutex_lock;
func() {
    lock(mutex_lock);
    // Some code (long enough to make a
    // race condition if no pro         


        

Answer 1

You may use the test mutex functions (trylock) in this kind of undefined situations, to be safe. And with this, you don't necessarily need to block too.