Explain how to implement barriers using semaphores

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Reference no: EM1363060

1. A barrier is a synchronization primitive. When created or reset with CreateBarrier(n) or SetBarrier(n), it waits for n processes to call WaitAtBarrier() before the barrier falls. Until the barrier falls, processes that call WaitAtBarrier() must wait; once the barrier falls, all processes waiting at this barrier are allowed to proceed unconditionally. Show how to implement barriers using semaphores. Your solution should avoid busy-waiting. Be explicit about any initializations that you need to assume.

Reference no: EM1363060

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