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Update reentrantlock.md

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guide 2021-12-06 19:52:34 +08:00
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docs/java/concurrent/reentrantlock.md
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@ -167,7 +167,7 @@ AQS使用一个Volatile的int类型的成员变量来表示同步状态，通过
waitStatus 有下面几个枚举值：
| 枚举 | 含义 |
| :-------- | :--------------------------------------------- |
| :-------- | :----------------------------------------------- |
| 0 | 当一个 Node 被初始化的时候的默认值 |
| CANCELLED | 为 1，表示线程获取锁的请求已经取消了 |
| CONDITION | 为-2，表示节点在等待队列中，节点线程等待唤醒 |
@ -187,7 +187,7 @@ private volatile int state;
下面提供了几个访问这个字段的方法：
| 方法名 | 描述 |
| :----------------------------------------------------------- | :------------------- |
| :----------------------------------------------------------- | :---------------------- |
| protected final int getState() | 获取 State 的值 |
| protected final void setState(int newState) | 设置 State 的值 |
| protected final boolean compareAndSetState(int expect, int update) | 使用 CAS 方式更新 State |