What is semaphore usage in multithreading?

What is semaphore usage in multithreading?

Semaphore is a synchronization primitive that controls access to a common resource in a concurrent system.

How does a semaphore differ from a mutex?

A semaphore allows multiple threads to access a resource up to a limit, while a mutex allows only one thread at a time.

Can you give an example of semaphore usage?

Sure! In a print queue, a semaphore can limit the number of printers available, allowing only a set number of print jobs to be processed simultaneously.

What are the advantages of using semaphores?

Semaphores help prevent race conditions, manage resource allocation, and improve performance in multithreaded applications.