►Full Series Playlist: ►Find full courses on: ►Join as Member to Support the channel: ►Git Repo: ►Lesson Description: In this lesson I teach you about how to use a condition_variable in C++. This is a relatively old concept that is useful for making sure that cpu time is not wasted attempting to constantly 'try' to acquire a lock. 00:00 Synchronization of threads with locks 1:20 Wasted cpu cycles waiting 1:58 Introduction to condition variable 3:20 What is needed for condition variables 4:21 Worker and reporter thread idea 5:00 Implementation of condition variable 5:45 Setting up condition variable 6:30 Setting up our 2 threads 7:20 Setting up worker thread 8:07 Using a unique_lock 9:20 Doing work in reporter thread and updating condition 10:50 notify with condition variable 11:58 Setting up reporting thread 12:46 Condition variable wait 13:20 wait blocks a thread 14:04 notify wakes up a thread 14:34 Syntax fixes 15:08 Logic fixes 15:40 Successful execution of program 16:10 Explanation again of what we have done ►YouTube Channel: ►Please like and subscribe to help the channel!