What are common mistakes with condition variables in C++?

What are some common mistakes developers make with condition variables in C++?

Some common mistakes include forgetting to lock the mutex before waiting, using the wrong condition variable, and not handling spurious wakeups.

Can you explain what spurious wakeups are?

Spurious wakeups occur when a thread is awakened from a wait state without any notification. It's important to always check the condition after waking up.

How can I avoid these mistakes in my code?

To avoid these mistakes, always use a loop to check the condition after waking up, and ensure proper mutex locking before waiting.

Are there any best practices for using condition variables?

Yes, best practices include using RAII for mutexes, keeping the critical section short, and using condition variables only when necessary.