Under what conditions will BlockingQueue.take throw interrupted exception?

最新推荐文章于 2024-07-13 15:18:53 发布

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最新推荐文章于 2024-07-13 15:18:53 发布

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分类专栏： Java 文章标签： java.util.concurrent exception

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本文探讨了使用毒丸(Poison Pill)模式作为线程终止信号的有效方法。通过向阻塞队列中插入特殊标记来指示关闭状态，确保队列行为符合预期。文章还提供了实现这一模式的具体代码示例。

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Poison Pill:A good way to signal termination of a blocking queue is to submit a 'poison' value into the queue that indicates a shutdown has occurred. This ensures that the expected behavior of the queue is honored. Calling Thread.interupt() is probably not a good idea if you care about clearing the queue.

To provide some code:

boolean shutdown = false;while (!shutdown) {
    try {
        WorkItem w = inQueue.take();
        if (w == QUEUE_IS_DEAD)
          shutdown = true;
        else
          w.consume();
    } catch (InterruptedException e) { 
        // possibly submit QUEUE_IS_DEAD to the queue
    }}