When the semaphore’s ability to count is not needed, a simplified version of the semaphore, called a mutex, is sometimes used. Mutexes are ...

This was the situation in 1965, when E. W. Dijkstra (1965) suggested using an integer variable to count the number of wakeups saved for fu...

Both Peterson’s solution and the solution using TSL are correct, but both have the defect of requiring busy waiting. In essence, what thes...

In this section we will examine various proposals for achieving mutual exclusion, so that while one process is busy updating shared memory ...

How do we avoid race conditions? The key to preventing trouble here and in many other situations involving shared memory, shared files, and...