What are the best practices for using condition variables in C++11?

What are the best practices for using condition variables in C++11?

When using condition variables in C++11, ensure to always use a mutex to protect shared data. Also, prefer using std::unique_lock for better flexibility.

Can you explain why std::unique_lock is preferred over std::lock_guard?

std::unique_lock allows for more control, such as the ability to unlock and relock the mutex, which is essential when waiting on a condition variable.

What are some common pitfalls to avoid with condition variables?

Common pitfalls include forgetting to notify waiting threads, using condition variables without a proper mutex, and not checking the condition in a loop.

How do I properly signal a condition variable?

You can signal a condition variable using notify_one() or notify_all() methods after changing the shared state, while holding the associated mutex.