What are the differences between mutexes, queues, and semaphores?

What are the differences between mutexes, queues, and semaphores?

Mutexes are used for mutual exclusion, ensuring that only one thread can access a resource at a time. Queues are data structures that store messages or tasks for processing, while semaphores are signaling mechanisms that control access to shared resources.

Can you give me an example of when to use a semaphore?

Sure! Use a semaphore when you want to limit the number of threads that can access a particular resource, like a database connection pool.

What about mutexes? When should I use them?

Use a mutex when you need to protect shared data from being accessed by multiple threads simultaneously, preventing race conditions.

Are there scenarios where I should prefer queues over mutexes?

Yes, use queues when you need to manage tasks or messages between threads, allowing for asynchronous processing without direct locking.

Can you summarize the best use cases for each?

Certainly! Use mutexes for exclusive access, semaphores for limiting access, and queues for task management and communication.