What are common synchronization primitives in C++?

What are common synchronization primitives in C++?

Common synchronization primitives in C++ include mutexes, condition variables, and semaphores. They help manage access to shared resources.

Can you explain how a mutex works?

A mutex (mutual exclusion) is a locking mechanism that prevents multiple threads from accessing a shared resource simultaneously. When a thread locks a mutex, other threads trying to lock it will be blocked until it is unlocked.

What about condition variables?

Condition variables allow threads to wait for certain conditions to be true before continuing execution. They are often used in conjunction with mutexes to synchronize access to shared data.

Are semaphores different from mutexes?

Yes, semaphores are used to control access to a resource pool. Unlike mutexes, which allow only one thread to access a resource, semaphores can allow multiple threads to access a limited number of resources.