Fill in sem.c and sem.h, using the
pseudocode in the notes.
WARNING: the pseudocode in the notes contains a deliberate
error which you will have to find and remove, either by
examination of the code or by debugging. I recommend the
former.
2.
Compile and run sem.
3.
Compile and run array.
4.
Once you get those working, how confident do you feel
that your implementation of semaphores is correct? Which
gives you more confidence, examination of the code or testing?
