2008-08-08 02:37:18 +02:00
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/*
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2011-12-09 06:18:34 +01:00
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* Copyright 2011 The Netty Project
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2008-08-08 02:37:18 +02:00
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*
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2011-12-09 06:18:34 +01:00
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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2008-08-08 02:37:18 +02:00
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*
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2011-12-09 06:18:34 +01:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2008-08-08 03:27:24 +02:00
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*
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2009-08-28 09:15:49 +02:00
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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2011-12-09 06:18:34 +01:00
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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2009-08-28 09:15:49 +02:00
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* License for the specific language governing permissions and limitations
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* under the License.
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2008-08-08 02:37:18 +02:00
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*/
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2011-12-09 04:38:59 +01:00
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package io.netty.channel;
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2008-08-08 02:37:18 +02:00
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2012-05-01 10:19:41 +02:00
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import io.netty.logging.InternalLogger;
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import io.netty.logging.InternalLoggerFactory;
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import io.netty.util.DefaultAttributeMap;
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import io.netty.util.internal.ConcurrentHashMap;
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2012-05-09 16:42:01 +02:00
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import java.io.IOException;
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2008-08-08 02:37:18 +02:00
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import java.net.SocketAddress;
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2012-05-09 15:09:06 +02:00
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import java.nio.channels.ClosedChannelException;
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2012-05-01 10:19:41 +02:00
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import java.util.ArrayList;
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import java.util.List;
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2009-02-16 12:59:33 +01:00
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import java.util.concurrent.ConcurrentMap;
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2008-08-08 02:37:18 +02:00
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/**
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2008-09-02 09:13:20 +02:00
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* A skeletal {@link Channel} implementation.
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2008-08-08 02:37:18 +02:00
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*/
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2012-05-01 10:19:41 +02:00
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public abstract class AbstractChannel extends DefaultAttributeMap implements Channel {
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private static final InternalLogger logger = InternalLoggerFactory.getInstance(AbstractChannel.class);
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2008-08-08 02:37:18 +02:00
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2009-02-16 12:59:33 +01:00
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static final ConcurrentMap<Integer, Channel> allChannels = new ConcurrentHashMap<Integer, Channel>();
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2012-05-09 15:09:06 +02:00
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/**
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* Generates a negative unique integer ID. This method generates only
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* negative integers to avoid conflicts with user-specified IDs where only
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* non-negative integers are allowed.
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*/
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2009-02-16 12:59:33 +01:00
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private static Integer allocateId(Channel channel) {
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2012-05-10 14:56:10 +02:00
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int idVal = System.identityHashCode(channel);
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if (idVal > 0) {
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idVal = -idVal;
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} else if (idVal == 0) {
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2012-05-09 15:09:06 +02:00
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idVal = -1;
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}
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2012-05-10 14:56:10 +02:00
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2012-05-09 15:09:06 +02:00
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Integer id;
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2009-02-16 12:59:33 +01:00
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for (;;) {
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2012-05-09 15:09:06 +02:00
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id = Integer.valueOf(idVal);
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2009-02-16 12:59:33 +01:00
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// Loop until a unique ID is acquired.
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// It should be found in one loop practically.
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if (allChannels.putIfAbsent(id, channel) == null) {
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// Successfully acquired.
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return id;
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} else {
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// Taken by other channel at almost the same moment.
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2012-05-09 15:09:06 +02:00
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idVal --;
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if (idVal >= 0) {
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idVal = -1;
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}
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2009-02-16 12:59:33 +01:00
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}
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}
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}
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2008-08-08 02:37:18 +02:00
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private final Channel parent;
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2012-05-09 15:09:06 +02:00
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private final Integer id;
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2012-05-01 10:19:41 +02:00
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private final Unsafe unsafe;
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2012-05-01 10:48:06 +02:00
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private final ChannelPipeline pipeline = new DefaultChannelPipeline(this);
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2012-05-01 10:19:41 +02:00
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private final List<ChannelFutureListener> closureListeners = new ArrayList<ChannelFutureListener>(4);
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2012-05-01 10:48:06 +02:00
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private final ChannelFuture succeededFuture = new SucceededChannelFuture(this);
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2012-05-01 10:19:41 +02:00
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private volatile EventLoop eventLoop;
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2012-05-02 14:05:53 +02:00
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private volatile boolean registered;
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2012-05-01 10:19:41 +02:00
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private volatile boolean notifiedClosureListeners;
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2012-05-09 15:09:06 +02:00
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/**
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* The future of the current connection attempt. If not null, subsequent
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* connection attempts will fail.
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*/
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2012-05-02 14:05:53 +02:00
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private ChannelFuture connectFuture;
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2012-05-09 15:09:06 +02:00
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private long writtenAmount;
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2008-08-08 02:37:18 +02:00
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/** Cache for the string representation of this channel */
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2012-05-01 10:19:41 +02:00
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private boolean strValActive;
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2008-08-08 02:37:18 +02:00
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private String strVal;
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2012-05-01 10:19:41 +02:00
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2008-09-02 09:13:20 +02:00
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/**
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* Creates a new instance.
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*
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2012-05-09 15:09:06 +02:00
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* @param id
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* the unique non-negative integer ID of this channel.
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* Specify {@code null} to auto-generate a unique negative integer
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* ID.
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2008-09-02 09:13:20 +02:00
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* @param parent
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* the parent of this channel. {@code null} if there's no parent.
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*/
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2012-05-09 15:09:06 +02:00
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protected AbstractChannel(Channel parent, Integer id) {
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if (id == null) {
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id = allocateId(this);
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} else {
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if (id.intValue() < 0) {
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throw new IllegalArgumentException("id: " + id + " (expected: >= 0)");
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}
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if (allChannels.putIfAbsent(id, this) != null) {
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throw new IllegalArgumentException("duplicate ID: " + id);
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}
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}
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2012-05-01 10:19:41 +02:00
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this.parent = parent;
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2012-05-09 15:09:06 +02:00
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this.id = id;
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2012-05-01 10:19:41 +02:00
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unsafe = new DefaultUnsafe();
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2010-05-19 08:29:43 +02:00
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2012-05-01 10:19:41 +02:00
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closureListeners.add(new ChannelFutureListener() {
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@Override
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public void operationComplete(ChannelFuture future) {
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allChannels.remove(id());
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}
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});
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2010-05-19 08:29:43 +02:00
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-01 10:19:41 +02:00
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public final Integer id() {
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2008-08-08 02:37:18 +02:00
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return id;
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-01 10:19:41 +02:00
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public Channel parent() {
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2008-08-08 02:37:18 +02:00
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return parent;
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-01 10:19:41 +02:00
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public ChannelPipeline pipeline() {
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2008-08-08 02:37:18 +02:00
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return pipeline;
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}
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@Override
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2012-05-01 10:19:41 +02:00
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public EventLoop eventLoop() {
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2012-05-09 15:09:06 +02:00
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if (eventLoop == null) {
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throw new IllegalStateException("channel not registered to an event loop");
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}
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2012-05-01 10:19:41 +02:00
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return eventLoop;
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2008-08-08 02:37:18 +02:00
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}
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2012-05-09 15:09:06 +02:00
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@Override
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public boolean isOpen() {
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return unsafe().ch().isOpen();
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}
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2012-05-02 14:05:53 +02:00
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@Override
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public boolean isRegistered() {
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return registered;
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-09 15:09:06 +02:00
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public ChannelFuture bind(SocketAddress localAddress) {
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2012-05-11 02:00:35 +02:00
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return pipeline().bind(localAddress);
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2008-08-08 02:37:18 +02:00
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-09 15:09:06 +02:00
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public ChannelFuture connect(SocketAddress remoteAddress) {
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2012-05-11 02:00:35 +02:00
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return pipeline().connect(remoteAddress);
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2008-08-08 02:37:18 +02:00
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-09 15:09:06 +02:00
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public ChannelFuture connect(SocketAddress remoteAddress, SocketAddress localAddress) {
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2012-05-11 02:00:35 +02:00
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return pipeline().connect(remoteAddress, localAddress);
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2008-08-08 02:37:18 +02:00
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-09 15:09:06 +02:00
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public ChannelFuture disconnect() {
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2012-05-11 02:00:35 +02:00
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return pipeline().disconnect();
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2008-10-02 06:40:46 +02:00
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-09 15:09:06 +02:00
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public ChannelFuture close() {
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2012-05-11 02:00:35 +02:00
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return pipeline().close();
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2008-11-26 10:21:00 +01:00
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-09 15:09:06 +02:00
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public ChannelFuture deregister() {
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2012-05-11 02:00:35 +02:00
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return pipeline().deregister();
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2008-08-08 02:37:18 +02:00
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-09 15:09:06 +02:00
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public ChannelFuture flush() {
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2012-05-11 02:00:35 +02:00
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return pipeline().flush();
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2012-05-09 15:09:06 +02:00
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}
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@Override
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public ChannelFuture write(Object message) {
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2012-05-11 02:00:35 +02:00
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return pipeline().write(message);
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2012-05-09 15:09:06 +02:00
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}
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@Override
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public ChannelFuture bind(SocketAddress localAddress, ChannelFuture future) {
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return pipeline().bind(localAddress, future);
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}
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@Override
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public ChannelFuture connect(SocketAddress remoteAddress, ChannelFuture future) {
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return pipeline().connect(remoteAddress, future);
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}
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@Override
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public ChannelFuture connect(SocketAddress remoteAddress, SocketAddress localAddress, ChannelFuture future) {
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return pipeline().connect(remoteAddress, localAddress, future);
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2008-08-08 02:37:18 +02:00
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-09 15:09:06 +02:00
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public ChannelFuture disconnect(ChannelFuture future) {
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return pipeline().disconnect(future);
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2008-08-08 02:37:18 +02:00
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-09 15:09:06 +02:00
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public ChannelFuture close(ChannelFuture future) {
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return pipeline().close(future);
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2008-08-08 02:37:18 +02:00
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}
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2012-05-09 15:09:06 +02:00
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@Override
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public ChannelFuture deregister(ChannelFuture future) {
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return pipeline().deregister(future);
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}
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2012-05-01 10:48:06 +02:00
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2012-05-09 15:09:06 +02:00
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@Override
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public ChannelBufferHolder<Object> out() {
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return pipeline().out();
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}
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@Override
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public ChannelFuture flush(ChannelFuture future) {
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return pipeline().flush(future);
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}
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@Override
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public ChannelFuture write(Object message, ChannelFuture future) {
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return pipeline.write(message, future);
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}
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2012-05-01 10:48:06 +02:00
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@Override
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public ChannelFuture newFuture() {
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return new DefaultChannelFuture(this, false);
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}
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@Override
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public ChannelFuture newSucceededFuture() {
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return succeededFuture;
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}
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@Override
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public ChannelFuture newFailedFuture(Throwable cause) {
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return new FailedChannelFuture(this, cause);
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}
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2010-11-12 01:45:39 +01:00
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@Override
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2012-05-01 10:19:41 +02:00
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public void addClosureListener(final ChannelFutureListener listener) {
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if (listener == null) {
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throw new NullPointerException("listener");
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}
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synchronized (closureListeners) {
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if (notifiedClosureListeners) {
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eventLoop().execute(new Runnable() {
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@Override
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public void run() {
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notifyClosureListener(listener);
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}
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});
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} else {
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closureListeners.add(listener);
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}
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}
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2008-08-08 02:37:18 +02:00
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}
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2012-05-01 10:48:06 +02:00
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@Override
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public void removeClosureListener(ChannelFutureListener listener) {
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if (listener == null) {
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throw new NullPointerException("listener");
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}
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synchronized (closureListeners) {
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if (!notifiedClosureListeners) {
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closureListeners.remove(listener);
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}
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}
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}
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2012-05-02 14:05:53 +02:00
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private void notifyClosureListeners() {
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2012-05-01 10:19:41 +02:00
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final ChannelFutureListener[] array;
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synchronized (closureListeners) {
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if (notifiedClosureListeners) {
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return;
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}
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notifiedClosureListeners = true;
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array = closureListeners.toArray(new ChannelFutureListener[closureListeners.size()]);
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closureListeners.clear();
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}
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2008-08-08 02:37:18 +02:00
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2012-05-01 10:19:41 +02:00
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eventLoop().execute(new Runnable() {
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@Override
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public void run() {
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for (ChannelFutureListener l: array) {
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notifyClosureListener(l);
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}
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}
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});
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2008-08-08 02:37:18 +02:00
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}
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2012-05-01 10:19:41 +02:00
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private void notifyClosureListener(final ChannelFutureListener listener) {
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try {
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2012-05-01 10:48:06 +02:00
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listener.operationComplete(newSucceededFuture());
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2012-05-01 10:19:41 +02:00
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} catch (Exception e) {
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logger.warn("Failed to notify a closure listener.", e);
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2008-08-08 02:37:18 +02:00
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}
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}
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2010-11-12 01:45:39 +01:00
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@Override
|
2012-05-01 10:19:41 +02:00
|
|
|
public Unsafe unsafe() {
|
|
|
|
return unsafe;
|
2008-08-08 02:37:18 +02:00
|
|
|
}
|
|
|
|
|
2012-05-01 10:19:41 +02:00
|
|
|
/**
|
|
|
|
* Returns the {@linkplain System#identityHashCode(Object) identity hash code}
|
|
|
|
* of this channel.
|
|
|
|
*/
|
2010-11-12 01:45:39 +01:00
|
|
|
@Override
|
2012-05-01 10:19:41 +02:00
|
|
|
public final int hashCode() {
|
|
|
|
return System.identityHashCode(this);
|
2008-08-08 02:37:18 +02:00
|
|
|
}
|
|
|
|
|
2012-05-01 10:19:41 +02:00
|
|
|
/**
|
|
|
|
* Returns {@code true} if and only if the specified object is identical
|
|
|
|
* with this channel (i.e: {@code this == o}).
|
|
|
|
*/
|
2011-12-07 07:54:15 +01:00
|
|
|
@Override
|
2012-05-01 10:19:41 +02:00
|
|
|
public final boolean equals(Object o) {
|
|
|
|
return this == o;
|
2011-12-07 07:54:15 +01:00
|
|
|
}
|
|
|
|
|
2012-05-01 10:19:41 +02:00
|
|
|
/**
|
|
|
|
* Compares the {@linkplain #id() ID} of the two channels.
|
|
|
|
*/
|
2011-12-07 07:54:15 +01:00
|
|
|
@Override
|
2012-05-01 10:19:41 +02:00
|
|
|
public final int compareTo(Channel o) {
|
|
|
|
return id().compareTo(o.id());
|
2011-12-07 07:54:15 +01:00
|
|
|
}
|
2012-05-01 10:19:41 +02:00
|
|
|
|
2008-09-02 09:13:20 +02:00
|
|
|
/**
|
|
|
|
* Returns the {@link String} representation of this channel. The returned
|
2012-05-01 10:19:41 +02:00
|
|
|
* string contains the {@linkplain #id() ID}, {@linkplain #localAddress() local address},
|
|
|
|
* and {@linkplain #remoteAddress() remote address} of this channel for
|
2008-09-02 09:13:20 +02:00
|
|
|
* easier identification.
|
|
|
|
*/
|
2008-08-08 02:37:18 +02:00
|
|
|
@Override
|
|
|
|
public String toString() {
|
2012-05-01 10:19:41 +02:00
|
|
|
boolean active = isActive();
|
|
|
|
if (strValActive == active && strVal != null) {
|
2008-08-08 02:37:18 +02:00
|
|
|
return strVal;
|
|
|
|
}
|
|
|
|
|
2012-05-11 03:47:45 +02:00
|
|
|
SocketAddress remoteAddr = remoteAddress();
|
|
|
|
SocketAddress localAddr = localAddress();
|
|
|
|
if (remoteAddr != null) {
|
|
|
|
SocketAddress srcAddr;
|
|
|
|
SocketAddress dstAddr;
|
|
|
|
if (parent == null) {
|
|
|
|
srcAddr = localAddr;
|
|
|
|
dstAddr = remoteAddr;
|
2008-08-08 02:37:18 +02:00
|
|
|
} else {
|
2012-05-11 03:47:45 +02:00
|
|
|
srcAddr = remoteAddr;
|
|
|
|
dstAddr = localAddr;
|
2008-08-08 02:37:18 +02:00
|
|
|
}
|
2012-05-11 03:47:45 +02:00
|
|
|
strVal = String.format("[id: 0x%08x, %s %s %s]", id, srcAddr, active? "=>" : ":>", dstAddr);
|
|
|
|
} else if (localAddr != null) {
|
|
|
|
strVal = String.format("[id: 0x%08x, %s]", id, localAddr);
|
|
|
|
} else {
|
|
|
|
strVal = String.format("[id: 0x%08x]", id);
|
2008-08-08 02:37:18 +02:00
|
|
|
}
|
|
|
|
|
2012-05-01 10:19:41 +02:00
|
|
|
strValActive = active;
|
2009-02-09 09:00:26 +01:00
|
|
|
return strVal;
|
2008-08-08 02:37:18 +02:00
|
|
|
}
|
2009-02-16 15:32:40 +01:00
|
|
|
|
2012-05-01 10:19:41 +02:00
|
|
|
private class DefaultUnsafe implements Unsafe {
|
2010-01-09 06:40:40 +01:00
|
|
|
|
2012-05-10 17:57:42 +02:00
|
|
|
private final ChannelFuture voidFuture = new VoidChannelFuture(AbstractChannel.this);
|
|
|
|
|
2010-01-09 06:40:40 +01:00
|
|
|
@Override
|
2012-05-01 10:19:41 +02:00
|
|
|
public java.nio.channels.Channel ch() {
|
|
|
|
return javaChannel();
|
2010-01-09 06:40:40 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
2012-05-01 10:19:41 +02:00
|
|
|
public ChannelBufferHolder<Object> out() {
|
|
|
|
return firstOut();
|
2010-01-09 06:40:40 +01:00
|
|
|
}
|
|
|
|
|
2012-05-10 17:57:42 +02:00
|
|
|
@Override
|
|
|
|
public ChannelFuture voidFuture() {
|
|
|
|
return voidFuture;
|
|
|
|
}
|
|
|
|
|
2012-05-02 08:01:58 +02:00
|
|
|
@Override
|
|
|
|
public SocketAddress localAddress() {
|
|
|
|
return localAddress0();
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
|
|
|
public SocketAddress remoteAddress() {
|
|
|
|
return remoteAddress0();
|
|
|
|
}
|
|
|
|
|
2012-05-01 16:18:29 +02:00
|
|
|
@Override
|
|
|
|
public void register(EventLoop eventLoop, ChannelFuture future) {
|
|
|
|
if (eventLoop == null) {
|
|
|
|
throw new NullPointerException("eventLoop");
|
|
|
|
}
|
|
|
|
if (AbstractChannel.this.eventLoop != null) {
|
|
|
|
throw new IllegalStateException("registered to an event loop already");
|
|
|
|
}
|
|
|
|
AbstractChannel.this.eventLoop = eventLoop;
|
|
|
|
|
|
|
|
assert eventLoop().inEventLoop();
|
2012-05-09 15:09:06 +02:00
|
|
|
|
|
|
|
if (!ensureOpen(future)) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
try {
|
|
|
|
doRegister();
|
|
|
|
registered = true;
|
|
|
|
future.setSuccess();
|
2012-05-02 14:05:53 +02:00
|
|
|
pipeline().fireChannelRegistered();
|
2012-05-10 16:19:59 +02:00
|
|
|
if (isActive()) {
|
|
|
|
pipeline().fireChannelActive();
|
|
|
|
}
|
2012-05-09 15:09:06 +02:00
|
|
|
} catch (Throwable t) {
|
|
|
|
// Close the channel directly to avoid FD leak.
|
|
|
|
try {
|
|
|
|
doClose();
|
|
|
|
} catch (Throwable t2) {
|
|
|
|
logger.warn("Failed to close a channel", t2);
|
|
|
|
}
|
|
|
|
|
|
|
|
future.setFailure(t);
|
|
|
|
pipeline().fireExceptionCaught(t);
|
2012-05-02 14:05:53 +02:00
|
|
|
}
|
2012-05-01 16:18:29 +02:00
|
|
|
}
|
|
|
|
|
2012-05-01 10:19:41 +02:00
|
|
|
@Override
|
|
|
|
public void bind(final SocketAddress localAddress, final ChannelFuture future) {
|
|
|
|
if (eventLoop().inEventLoop()) {
|
2012-05-09 15:09:06 +02:00
|
|
|
if (!ensureOpen(future)) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
try {
|
|
|
|
boolean wasActive = isActive();
|
|
|
|
doBind(localAddress);
|
|
|
|
future.setSuccess();
|
|
|
|
if (!wasActive && isActive()) {
|
|
|
|
pipeline().fireChannelActive();
|
|
|
|
}
|
|
|
|
} catch (Throwable t) {
|
|
|
|
future.setFailure(t);
|
|
|
|
pipeline().fireExceptionCaught(t);
|
|
|
|
closeIfClosed();
|
|
|
|
}
|
2012-05-01 10:19:41 +02:00
|
|
|
} else {
|
|
|
|
eventLoop().execute(new Runnable() {
|
|
|
|
@Override
|
|
|
|
public void run() {
|
2012-05-09 15:09:06 +02:00
|
|
|
bind(localAddress, future);
|
2012-05-01 10:19:41 +02:00
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
|
|
|
public void connect(final SocketAddress remoteAddress, final SocketAddress localAddress, final ChannelFuture future) {
|
|
|
|
if (eventLoop().inEventLoop()) {
|
2012-05-09 15:09:06 +02:00
|
|
|
if (!ensureOpen(future)) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
try {
|
|
|
|
if (connectFuture != null) {
|
|
|
|
throw new IllegalStateException("connection attempt already made");
|
|
|
|
}
|
|
|
|
|
|
|
|
boolean wasActive = isActive();
|
|
|
|
if (doConnect(remoteAddress, localAddress)) {
|
|
|
|
future.setSuccess();
|
|
|
|
if (!wasActive && isActive()) {
|
|
|
|
pipeline().fireChannelActive();
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
connectFuture = future;
|
|
|
|
}
|
|
|
|
} catch (Throwable t) {
|
|
|
|
future.setFailure(t);
|
|
|
|
pipeline().fireExceptionCaught(t);
|
|
|
|
closeIfClosed();
|
2012-05-02 14:05:53 +02:00
|
|
|
}
|
2012-05-01 10:19:41 +02:00
|
|
|
} else {
|
|
|
|
eventLoop().execute(new Runnable() {
|
|
|
|
@Override
|
|
|
|
public void run() {
|
2012-05-09 15:09:06 +02:00
|
|
|
connect(remoteAddress, localAddress, future);
|
2012-05-01 10:19:41 +02:00
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-05-02 14:05:53 +02:00
|
|
|
@Override
|
|
|
|
public void finishConnect() {
|
|
|
|
assert eventLoop().inEventLoop();
|
|
|
|
assert connectFuture != null;
|
2012-05-09 15:09:06 +02:00
|
|
|
try {
|
|
|
|
doFinishConnect();
|
|
|
|
connectFuture.setSuccess();
|
|
|
|
} catch (Throwable t) {
|
|
|
|
connectFuture.setFailure(t);
|
|
|
|
pipeline().fireExceptionCaught(t);
|
|
|
|
closeIfClosed();
|
|
|
|
} finally {
|
|
|
|
connectFuture = null;
|
|
|
|
}
|
2012-05-02 14:05:53 +02:00
|
|
|
}
|
|
|
|
|
2012-05-01 10:19:41 +02:00
|
|
|
@Override
|
|
|
|
public void disconnect(final ChannelFuture future) {
|
|
|
|
if (eventLoop().inEventLoop()) {
|
2012-05-09 15:09:06 +02:00
|
|
|
try {
|
|
|
|
boolean wasActive = isActive();
|
|
|
|
doDisconnect();
|
|
|
|
future.setSuccess();
|
|
|
|
if (wasActive && !isActive()) {
|
|
|
|
pipeline().fireChannelInactive();
|
|
|
|
}
|
|
|
|
} catch (Throwable t) {
|
|
|
|
future.setFailure(t);
|
|
|
|
closeIfClosed();
|
|
|
|
}
|
2012-05-01 10:19:41 +02:00
|
|
|
} else {
|
|
|
|
eventLoop().execute(new Runnable() {
|
|
|
|
@Override
|
|
|
|
public void run() {
|
2012-05-09 15:09:06 +02:00
|
|
|
disconnect(future);
|
2012-05-01 10:19:41 +02:00
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
|
|
|
public void close(final ChannelFuture future) {
|
|
|
|
if (eventLoop().inEventLoop()) {
|
2012-05-09 15:09:06 +02:00
|
|
|
if (isOpen()) {
|
|
|
|
boolean wasActive = isActive();
|
|
|
|
try {
|
|
|
|
doClose();
|
|
|
|
future.setSuccess();
|
|
|
|
} catch (Throwable t) {
|
|
|
|
future.setFailure(t);
|
|
|
|
}
|
2012-05-10 16:19:59 +02:00
|
|
|
|
|
|
|
notifyClosureListeners();
|
2012-05-09 15:09:06 +02:00
|
|
|
if (wasActive && !isActive()) {
|
|
|
|
pipeline().fireChannelInactive();
|
|
|
|
}
|
2012-05-10 16:19:59 +02:00
|
|
|
|
2012-05-10 17:57:42 +02:00
|
|
|
deregister(voidFuture());
|
2012-05-09 15:09:06 +02:00
|
|
|
} else {
|
|
|
|
// Closed already.
|
|
|
|
future.setSuccess();
|
|
|
|
}
|
2012-05-01 10:19:41 +02:00
|
|
|
} else {
|
|
|
|
eventLoop().execute(new Runnable() {
|
|
|
|
@Override
|
|
|
|
public void run() {
|
2012-05-09 15:09:06 +02:00
|
|
|
close(future);
|
2012-05-01 10:19:41 +02:00
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
|
|
|
public void deregister(final ChannelFuture future) {
|
|
|
|
if (eventLoop().inEventLoop()) {
|
2012-05-01 16:19:31 +02:00
|
|
|
try {
|
2012-05-09 15:09:06 +02:00
|
|
|
doDeregister();
|
|
|
|
} catch (Throwable t) {
|
|
|
|
logger.warn("Unexpected exception occurred while deregistering a channel.", t);
|
2012-05-01 16:19:31 +02:00
|
|
|
} finally {
|
2012-05-09 15:09:06 +02:00
|
|
|
future.setSuccess();
|
2012-05-02 14:05:53 +02:00
|
|
|
registered = false;
|
|
|
|
pipeline().fireChannelUnregistered();
|
2012-05-01 16:19:31 +02:00
|
|
|
eventLoop = null;
|
|
|
|
}
|
2012-05-01 10:19:41 +02:00
|
|
|
} else {
|
|
|
|
eventLoop().execute(new Runnable() {
|
|
|
|
@Override
|
|
|
|
public void run() {
|
2012-05-09 15:09:06 +02:00
|
|
|
deregister(future);
|
2012-05-01 10:19:41 +02:00
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
2012-05-09 15:09:06 +02:00
|
|
|
public void read() {
|
2012-05-01 10:19:41 +02:00
|
|
|
assert eventLoop().inEventLoop();
|
2012-05-09 15:09:06 +02:00
|
|
|
long readAmount = 0;
|
|
|
|
try {
|
2012-05-09 16:42:01 +02:00
|
|
|
boolean closed = false;
|
2012-05-09 15:09:06 +02:00
|
|
|
for (;;) {
|
|
|
|
int localReadAmount = doRead();
|
|
|
|
if (localReadAmount > 0) {
|
|
|
|
readAmount += localReadAmount;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
if (localReadAmount == 0) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (localReadAmount < 0) {
|
2012-05-09 16:42:01 +02:00
|
|
|
closed = true;
|
2012-05-09 15:09:06 +02:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (readAmount > 0) {
|
|
|
|
pipeline.fireInboundBufferUpdated();
|
|
|
|
}
|
|
|
|
|
2012-05-09 16:42:01 +02:00
|
|
|
if (closed) {
|
2012-05-10 17:57:42 +02:00
|
|
|
close(voidFuture());
|
2012-05-09 15:09:06 +02:00
|
|
|
}
|
|
|
|
} catch (Throwable t) {
|
|
|
|
pipeline().fireExceptionCaught(t);
|
2012-05-09 16:42:01 +02:00
|
|
|
if (t instanceof IOException) {
|
2012-05-10 17:57:42 +02:00
|
|
|
close(voidFuture());
|
2012-05-09 16:42:01 +02:00
|
|
|
}
|
2012-05-09 15:09:06 +02:00
|
|
|
}
|
2012-05-01 10:19:41 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
2012-05-09 15:09:06 +02:00
|
|
|
public void flush(final ChannelFuture future) {
|
|
|
|
// FIXME: Notify future properly using writtenAmount.
|
2012-05-01 10:19:41 +02:00
|
|
|
if (eventLoop().inEventLoop()) {
|
2012-05-09 15:09:06 +02:00
|
|
|
try {
|
|
|
|
writtenAmount += doFlush();
|
|
|
|
} catch (Exception e) {
|
|
|
|
future.setFailure(e);
|
|
|
|
}
|
2012-05-01 10:19:41 +02:00
|
|
|
} else {
|
|
|
|
eventLoop().execute(new Runnable() {
|
|
|
|
@Override
|
|
|
|
public void run() {
|
2012-05-09 15:09:06 +02:00
|
|
|
try {
|
|
|
|
writtenAmount += doFlush();
|
|
|
|
} catch (Exception e) {
|
|
|
|
future.setFailure(e);
|
|
|
|
}
|
2012-05-01 10:19:41 +02:00
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
2010-01-09 06:40:40 +01:00
|
|
|
}
|
2012-05-09 15:09:06 +02:00
|
|
|
|
|
|
|
private boolean ensureOpen(ChannelFuture future) {
|
|
|
|
if (isOpen()) {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
Exception e = new ClosedChannelException();
|
|
|
|
future.setFailure(e);
|
|
|
|
pipeline().fireExceptionCaught(e);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
private void closeIfClosed() {
|
|
|
|
if (isOpen()) {
|
|
|
|
return;
|
|
|
|
}
|
2012-05-10 17:57:42 +02:00
|
|
|
close(voidFuture());
|
2012-05-09 15:09:06 +02:00
|
|
|
}
|
2010-01-09 06:40:40 +01:00
|
|
|
}
|
2012-05-01 10:19:41 +02:00
|
|
|
|
|
|
|
protected abstract java.nio.channels.Channel javaChannel();
|
|
|
|
protected abstract ChannelBufferHolder<Object> firstOut();
|
|
|
|
|
2012-05-02 08:01:58 +02:00
|
|
|
protected abstract SocketAddress localAddress0();
|
|
|
|
protected abstract SocketAddress remoteAddress0();
|
|
|
|
|
2012-05-09 15:09:06 +02:00
|
|
|
protected abstract void doRegister() throws Exception;
|
|
|
|
protected abstract void doBind(SocketAddress localAddress) throws Exception;
|
|
|
|
protected abstract boolean doConnect(SocketAddress remoteAddress, SocketAddress localAddress) throws Exception;
|
|
|
|
protected abstract void doFinishConnect() throws Exception;
|
|
|
|
protected abstract void doDisconnect() throws Exception;
|
|
|
|
protected abstract void doClose() throws Exception;
|
|
|
|
protected abstract void doDeregister() throws Exception;
|
2012-05-01 10:19:41 +02:00
|
|
|
|
2012-05-09 15:09:06 +02:00
|
|
|
protected abstract int doRead() throws Exception;
|
|
|
|
protected abstract int doFlush() throws Exception;
|
2008-08-08 02:37:18 +02:00
|
|
|
}
|