What are some synchronization techniques in C++?

What are some synchronization techniques in C++?

In C++, synchronization techniques are used to manage access to shared resources in concurrent programming. Common techniques include mutexes, condition variables, and semaphores.

Can you explain how mutexes work?

Mutexes, or mutual exclusions, are used to prevent 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 proceeding. They are often used in conjunction with mutexes to avoid busy waiting.

Are there any performance considerations with these techniques?

Yes, using synchronization techniques can introduce overhead. It's important to minimize the time a mutex is held and to avoid unnecessary locking to improve performance.