Operating Systems 1

Lecture 5

Covered...

The need for mutual exclusion
...disabling interrupts
...lock variables and Test-And-Set instruction
...alternation
...Peterson's solution
Summary of low-level IPC primitives
Introduction to high-level IPC primitives
Introduction to semaphores
Using semaphores for mutual exclusion
Introduction to the producer-consumer problem

last updated 17 February 1998