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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

Goal: Learn to use SysV IPC semaphores
We will start the lab together in class.
Today's lab is in tvlab5.c
Things to do together on the big-screen...
Compile and run tvlab5.c.
Complete the fib() function.
Run lab5 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
image text in transcribed

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