Lecture 7 - Mutual Exclusion in C++

Question 1

What does mutual exclusion mean?

Answer 1

2 threads cannot simultanously enter a critical section

Question 2

Wht is mutual exclusion managed with?

Answer 2

Locks / Mutexes

We need to lock and unlock when accessing a critical section

Question 3

In C++ do we need to unlock? Why?

Answer 3

No

Unlocking is done automatically when block is finished, this is due to the RAll concept, as parent finishes execution.