This session starts with introduction to POSIX semaphores by giving a comparison between mutex, condition variable and semaphore. The implementation of named and unnamed semaphores and their API is discussed. Sample codes are discussed which gives a CSP solution using semaphores among threads and processes. The solution of serialization is also discussed among threads and processes using semaphores. Finally, the use of counting semaphores is also explained

Email: arif@pucit.edu.pk Example Codes: https://bitbucket.org/arifpucit/spvl-repo/src

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