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阻塞队列BlockingQueue 源码解析（ArrayBQ和LinkedBQ）
2022-07-24 08:33:00 【trigger333】
目录
BlockingQueue的实现有很多，下面主要介绍下ArrayBQ和LinkedBQ。
构造方法
公平锁就是先来拉取元素的线程如果进入了等待，那么一旦有元素被添加到队列中，就会由这个线程首先去获取元素。添加也是同理。 而linkedBQ不支持。
linkedBQ里面是用的Node
添加元素
put
ArrayBQ
LinkedBQ
offer
ArrayBQ
add元素调用的是offer
LinkedBQ和ArrayBQ差不多
带超时时间的offer
spinForTimeoutThreshold
自旋时间段 是1微妙。
拉取
和添加相对应
poll对应offer， take对应put。
LinkedBQ
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