What is the best way to wait on multiple condition variables in C++11?

Question

First a little context: I\'m in the process of learning about threading in C++11 and for this purpose, I\'m trying to build a small actor class

Answer 1

Maybe this can works:

get rid of interrupt.

 message wait_and_pop(std::condition_variable& interrupt) {
    std::unique_lock lock(mutex);
    {
        new_msg_notification.wait(lock,[&]{
            return !queue.empty() || stop;
        });

        if( !stop )
        {
            auto msg(std::move(queue.front()));
            queue.pop();
            return msg;
        }
        else
        {
            return NULL; //or some 'terminate' message
        }
}

In destructor, replace interrupt.notify_all() with new_msg_notification.notify_all()