This repository contains my solutions to the exercises in The Little Book of Semaphores, written in C.
Just run make.
It only builds on macOS, since I am using Apple's Dispatch framework for the semaphores. I would have used POSIX semaphores, but they are not fully implemented in macOS.
Run bin/semaphores --help to see the instructions:
usage: semaphores [options]
Default
semaphores -p 5 -n 5 -j 1
Test options
-t N Test only problem N (1 to 15), not all problems
-p N Test success with semaphores (positive case), N iterations
-n N Test failure without semaphores (negative case), N iterations
Use -p0 to disable positive tests and -n0 to disable negative tests
Other options
-j N Run N jobs in parallel
-i Use interactive mode (display updates in alternate screen)
Try running bin/semaphores -p 100 -n 100 -j 16 -i :)
© 2016 Mitchell Kember
Semaphores is available under the MIT License; see LICENSE for details.