Counting semaphores - PowerPoint PPT Presentation

Interprocess Communication

Interprocess Communication. Interprocess communication Deadlocks Classic IPC Problems. Produce . Get from buffer. Put in buffer. Consume . Producer - Consumer Problem. Producer Process. Consumer Process. Buffer is shared (ie., it is a shared variable). BUFFER. p1. 1. p2. 2. p3. 3.

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CS 311- Fall 2010

CS 311- Fall 2010. Semaphores. Semaphores – General Idea. Allows two or more concurrent threads to coordinate through signaling/waiting Has four main operations initialize, getvalue , increment ( signal ), decrement ( wait )

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