When should I use mutexes in programming?

When should I use mutexes in programming?

Mutexes are used to prevent data races by ensuring that only one thread can access a resource at a time. You should use them when multiple threads might modify shared data.

Can you give me an example of a situation where a mutex is necessary?

Sure! If you have a bank account object that multiple threads can access to update the balance, using a mutex ensures that only one thread can modify the balance at a time, preventing inconsistencies.

What are the downsides of using mutexes?

The main downsides include potential deadlocks if not managed properly, and they can introduce latency since threads may have to wait for access to the resource.

Are there alternatives to mutexes?

Yes, alternatives include read-write locks, semaphores, and lock-free programming techniques, depending on your specific use case.