Upon exiting the critical section, send a release message to every process.

In other words we need a way to execute a critical section with mutual exclusion.

If they are the same, the thread is permitted to enter the critical section.

This permits the next waiting thread to enter the critical section.

It uses N different levels - each represents another 'waiting room', before the critical section.

The sampling system is a critical section during flow measurement.

Next to the opening of a short story, the ending is the most critical section.

Processes with priority will break from the while loop and enter their critical section.

As a result, two processes can enter the critical section at the same time.

The length of any critical section that needs to be interrupted.