bool wait_for_wake = false;std::mutex process_mutex;std::condition_variable_any process_cond;std::unique_lock
     
       lock(process_mutex);auto Timer = [&process_mutex, &process_cond](const int &wait_time) {  std::this_thread::sleep_for(std::chrono::milliseconds(wait_time));  process_cond.notify_one();};// useauto wait_time = 50; std::thread(Timer, wait_time).detach();wait_for_wake = true;while (wait_for_wake) {  process_cond.wait(lock);  wait_for_wake = false;}