Examples of java.nio.channels.Selector.wakeup()

java.nio.channels.Selector.wakeup()
Causes the first selection operation that has not yet returned to return immediately.
If another thread is currently blocked in an invocation of the {@link #select()} or {@link #select(long)} methods then that invocationwill return immediately. If no selection operation is currently in progress then the next invocation of one of these methods will return immediately unless the {@link #selectNow()} method is invoked in themeantime. In any case the value returned by that invocation may be non-zero. Subsequent invocations of the {@link #select()} or {@link #select(long)} methods will block as usual unless this method is invokedagain in the meantime.
Invoking this method more than once between two successive selection operations has the same effect as invoking it just once.
@return This selector

    }
    
    public void interrupt() {
        Selector selector = currentSelector;
        if (selector != null) {
            selector.wakeup();
        }
        BlockingIO.Condition iowait = blockingIO;
        if (iowait != null) {
            iowait.cancel();
        }

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    void flush(SocketSessionImpl session) {
        if ( scheduleFlush(session) ) {
            Selector selector = this.selector;
            if (selector != null) {
                selector.wakeup();
            }
        }
    }


    void updateTrafficMask(SocketSessionImpl session) {

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    void updateTrafficMask(SocketSessionImpl session) {
        scheduleTrafficControl(session);
        Selector selector = this.selector;
        if (selector != null) {
            selector.wakeup();
        }
    }


    private void scheduleRemove(SocketSessionImpl session) {
        removingSessions.add(session);

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    public void flushSession(DatagramSessionImpl session) {
        if (scheduleFlush(session)) {
            Selector selector = this.selector;
            if (selector != null) {
                selector.wakeup();
            }
        }
    }


    private boolean scheduleFlush(DatagramSessionImpl session) {

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    public void updateTrafficMask(DatagramSessionImpl session) {
        scheduleTrafficControl(session);
        Selector selector = this.selector;
        if (selector != null) {
            selector.wakeup();
        }
    }


    private void scheduleTrafficControl(DatagramSessionImpl session) {
        trafficControllingSessions.add(session);

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                }


                getListeners().fireSessionDestroyed(session);
                session.getCloseFuture().setClosed();
                key.cancel();
                selector.wakeup(); // wake up again to trigger thread death
            }
        }
    }


    private static class RegistrationRequest extends DefaultConnectFuture {

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    public void flushSession(DatagramSessionImpl session) {
        if (scheduleFlush(session)) {
            Selector selector = this.selector;
            if (selector != null) {
                selector.wakeup();
            }
        }
    }


    public void closeSession(DatagramSessionImpl session) {

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                } else {
                    SelectionKey key = ch.keyFor(selector);
                    request.registrationRequest = (RegistrationRequest) key
                            .attachment();
                    key.cancel();
                    selector.wakeup(); // wake up again to trigger thread death
                    ch.disconnect();
                    ch.close();
                }
            } catch (Throwable t) {
                ExceptionMonitor.getInstance().exceptionCaught(t);

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        /* ------------------------------------------------------------ */
        public void wakeup()
        {
            Selector selector = _selector;
            if (selector!=null)
                selector.wakeup();
        }


        /* ------------------------------------------------------------ */
        Selector getSelector()
        {

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                        : "New I/O client worker #") + bossId + '-' + id;


            executor.execute(new NamePreservingRunnable(this, threadName));
        } else {
            synchronized (selectorGuard) {
                selector.wakeup();
                try {
                    channel.socket.register(selector, SelectionKey.OP_READ, channel);
                } catch (ClosedChannelException e) {
                    throw new ChannelException(
                            "Failed to register a socket to the selector.", e);

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