4 4 2 Test and Set Synchronization Primitive

[@dohyeonlee7862]

I love this lecture. Thank you professor!

[@bat-amgalanbat-erdene2621]

Amazingly good explanations! Thank you! I'm actually studying for my exam at TU Munich haha

[@reductor_]

Should probably also call out that last example is double check locking not just "Test and Test-and-Set"