刚刚面试官问了这个问题，没答上来，百度也没找到。
This topic created in 2397 days ago, the information mentioned may be changed or developed.
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lhx2008Apr 12, 2020 via Android
1
应该是说说 AQS 的东西
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Reentrantlock 主要是基于 AQS，而 AQS 继承一个抽象类 AbstractOwnableSynchronizer，有个变量 exclusiveOwnerThread，用来存储锁持有的线程，然后比较，比如源码中你会看到这个
(current == getExclusiveOwnerThread()) |
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coerApr 12, 2020
3
从 lock()进去走几步就能看到 nonfairTryAcquire(int acquires)中的 else if (current == getExclusiveOwnerThread()).....
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