Use of Multiple Semaphores

Question

Explain about the use of Multiple Semaphores.

Answer 1

Utilization of Multiples Semaphores:

Notice two semaphores. A task I while executing a critical section notifies the operating system to take the semaphore. Operating system returns information which the semaphore has been taken to l and M. Currently, the task I executes the codes of the critical. The operating system having been notified regarding a take semaphore x from I, doesn’t take and operating system doesn’t release the o task J and M' although the operating system returns a semaphore at a case.

Figure: The use of two semaphores, x and y among the tasks, I to M.