Add AutoReleasingSemaphore #30
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Similar to `DispatchSemaphore`, `AutoReleasingSemaphore` is a synchronization mechanism that ensures only a set number of threads can concurrently access a protected resource. Unlike `DispatchSemaphore`, `AutoReleasingSemaphore` auto-releases all blocked threads when the semaphore itself is deallocated.
rudro
approved these changes
Feb 20, 2019
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Similar to
DispatchSemaphore,AutoReleasingSemaphoreis a synchronization mechanism that ensures only a set number of threads can concurrently access a protected resource. UnlikeDispatchSemaphore,AutoReleasingSemaphoreauto-releases all blocked threads when the semaphore itself is deallocated.