AbstractQueuedSynchronizer is a masterpiece java class authored by Doug Lea. It is the underlying data structure that provides the acquire, tryAcquire, release, tryRelease … interface to CountDownLatch, Semaphore, ReentrantLock, and ReadWriteLock. So AbstractQueuedSynchronizer is basically the backbone of java.util.concurrent package.
I did a short presentation on AQS and try to explain how the simple acquire and release work, hope you will enjoy it.
Here is the code of the Mutex implemented using AQS:
In this video, I explained how this class works and the underlying mechanisms in AQS.
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