Java多线程reentrantreadwritelock 的相关内容

java多线程：并发包中ReentrantReadWriteLock读写锁的锁降级模板

写锁降级为读锁，但读锁不可升级或降级为写锁。锁降级是为了让当前线程感知到数据的变化。 1 //读写锁 2 private ReentrantReadWriteLock lock=new ReentrantReadWriteLock(); 3 //读锁 4 private ReadLock read...

java多线程：并发包中ReentrantReadWriteLock读写锁的原理

一：读写锁解决的场景问题--->数据的读取频率远远大于写的频率的场景，就可以使用读写锁。二：读写锁的结构--->用state一个变量。将其转化成二进制，前16位为高位，标记读线程获取锁的次数。后16位为低位，标记写线程获取锁的次数。--->读写锁需要解决的冲突：读/写冲突，写/写冲...

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Java多线程之ReentrantReadWriteLock

一、锁的种类和含义 Java的concurrent并发包中，存在两种类型的锁，即共享锁和排它锁，后者也叫做独占锁。 &...

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更新时间 2023-01-13 18:16:33

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