Goal: Learn to use SysV IPC semaphores

We will start the lab together in class.

Today's lab is in tvlab$5.$c

Things to do together on the big$-$screen...

Compile and run tvlab$5.$c$.$

Complete the fib$()$ function.

Run lab$5$ to see it fail.

Identify the critical section or sections.

Identify a race condition happening.

Add comments where the semaphore activity belongs. $($around the critical section$)$

Look at the functions needed in sem$\_$ctrl$.$c$.$

Start your work on the lab.

Synchronization with SysV Semaphores

SysV IPC v$.$ Posix

Dave's IPC: semaphores

week$-5$ example code

semop manpage