What are some common thread safety mistakes in C++?

What are some common thread safety mistakes in C++?

Some common mistakes include not using mutexes for shared data, failing to lock resources properly, and ignoring data races.

Can you explain what a data race is?

A data race occurs when two or more threads access shared data simultaneously, and at least one thread modifies it without proper synchronization.

How can I prevent data races in my code?

You can prevent data races by using synchronization mechanisms like mutexes, locks, or atomic operations to control access to shared data.

What are mutexes and how do they work?

Mutexes are mutual exclusion objects that prevent multiple threads from accessing a resource simultaneously. You lock a mutex before accessing shared data and unlock it afterward.

Are there any tools to help detect thread safety issues?

Yes, tools like ThreadSanitizer and Valgrind can help detect thread safety issues and data races in your C++ code.