Examples of java.util.concurrent.Delayed

java.util.concurrent.Delayed
A mix-in style interface for marking objects that should be acted upon after a given delay.
An implementation of this interface must define a compareTo method that provides an ordering consistent with its getDelay method. @since 1.5 @author Doug Lea

     * This may occur if a task is eligible to be dequeued, but has
     * not yet been, while some other task is added with a delay of
     * Long.MAX_VALUE.
     */
    private long overflowFree(long delay) {
        Delayed head = workQueue.peek();
        if (head != null) {
            long headDelay = head.getDelay(NANOSECONDS);
            if (headDelay < 0 && (delay - headDelay < 0))
                delay = Long.MAX_VALUE + headDelay;
        }
        return delay;
    }

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     * This may occur if a task is eligible to be dequeued, but has
     * not yet been, while some other task is added with a delay of
     * Long.MAX_VALUE.
     */
    private long overflowFree(long delay) {
        Delayed head = workQueue.peek();
        if (head != null) {
            long headDelay = head.getDelay(NANOSECONDS);
            if (headDelay < 0 && (delay - headDelay < 0))
                delay = Long.MAX_VALUE + headDelay;
        }
        return delay;
    }

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        if (runlock.isLocked()) {
            return true;
        }
        EventLoop eventloop = this.eventloop;
        if (eventloop != null) {
            Delayed task = (Delayed)eventloop.getQueue().peek();
            if (task != null && task.getDelay(TimeUnit.MILLISECONDS) < 1l) {
                return true;
            }
        }
        return false;
    }

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     * This may occur if a task is eligible to be dequeued, but has
     * not yet been, while some other task is added with a delay of
     * Long.MAX_VALUE.
     */
    private long overflowFree(long delay) {
        Delayed head = workQueue.peek();
        if (head != null) {
            long headDelay = head.getDelay(NANOSECONDS);
            if (headDelay < 0 && (delay - headDelay < 0))
                delay = Long.MAX_VALUE + headDelay;
        }
        return delay;
    }

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        currentNodes = nodes;// 切换引用，需设置为volatile保证线程安全&可见性
        // 处理下dead node
        if (deadNodes.size() > 0) {
            for (Long nid : deadNodes) {
                Delayed delayed = new DeadNodeDelayed(nid, checkTime);
                if (!queue.contains(delayed)) {// 不重复添加
                    queue.add(new DeadNodeDelayed(nid, checkTime));
                }
            }
        }

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     * This may occur if a task is eligible to be dequeued, but has
     * not yet been, while some other task is added with a delay of
     * Long.MAX_VALUE.
     */
    private long overflowFree(long delay) {
        Delayed head = workQueue.peek();
        if (head != null) {
            long headDelay = head.getDelay(NANOSECONDS);
            if (headDelay < 0 && (delay - headDelay < 0))
                delay = Long.MAX_VALUE + headDelay;
        }
        return delay;
    }

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     * This may occur if a task is eligible to be dequeued, but has
     * not yet been, while some other task is added with a delay of
     * Long.MAX_VALUE.
     */
    private long overflowFree(long delay) {
        Delayed head = workQueue.peek();
        if (head != null) {
            long headDelay = head.getDelay(NANOSECONDS);
            if (headDelay < 0 && (delay - headDelay < 0))
                delay = Long.MAX_VALUE + headDelay;
        }
        return delay;
    }

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     * This may occur if a task is eligible to be dequeued, but has
     * not yet been, while some other task is added with a delay of
     * Long.MAX_VALUE.
     */
    private long overflowFree(long delay) {
        Delayed head = workQueue.peek();
        if (head != null) {
            long headDelay = head.getDelay(NANOSECONDS);
            if (headDelay < 0 && (delay - headDelay < 0))
                delay = Long.MAX_VALUE + headDelay;
        }
        return delay;
    }

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     * This may occur if a task is eligible to be dequeued, but has
     * not yet been, while some other task is added with a delay of
     * Long.MAX_VALUE.
     */
    private long overflowFree(long delay) {
        Delayed head = workQueue.peek();
        if (head != null) {
            long headDelay = head.getDelay(NANOSECONDS);
            if (headDelay < 0 && (delay - headDelay < 0))
                delay = Long.MAX_VALUE + headDelay;
        }
        return delay;
    }

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     * This may occur if a task is eligible to be dequeued, but has
     * not yet been, while some other task is added with a delay of
     * Long.MAX_VALUE.
     */
    private long overflowFree(long delay) {
        Delayed head = workQueue.peek();
        if (head != null) {
            long headDelay = head.getDelay(NANOSECONDS);
            if (headDelay < 0 && (delay - headDelay < 0))
                delay = Long.MAX_VALUE + headDelay;
        }
        return delay;
    }

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