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annotate src/org/eclipse/jetty/io/nio/SelectChannelEndPoint.java @ 958:fc521d2f098e

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simplify SelectorManager
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 13 Oct 2016 18:48:20 -0600
parents 1094975d013b
children 7b94f5b33c64
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1 //
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2 // ========================================================================
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
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4 // ------------------------------------------------------------------------
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5 // All rights reserved. This program and the accompanying materials
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6 // are made available under the terms of the Eclipse Public License v1.0
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7 // and Apache License v2.0 which accompanies this distribution.
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8 //
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9 // The Eclipse Public License is available at
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10 // http://www.eclipse.org/legal/epl-v10.html
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11 //
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12 // The Apache License v2.0 is available at
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13 // http://www.opensource.org/licenses/apache2.0.php
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14 //
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15 // You may elect to redistribute this code under either of these licenses.
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16 // ========================================================================
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17 //
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18
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19 package org.eclipse.jetty.io.nio;
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20
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21 import java.io.IOException;
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22 import java.io.InterruptedIOException;
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23 import java.nio.channels.ClosedChannelException;
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24 import java.nio.channels.SelectableChannel;
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25 import java.nio.channels.SelectionKey;
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26 import java.nio.channels.SocketChannel;
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27 import java.util.Locale;
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28 import java.util.concurrent.RejectedExecutionException;
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29
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30 import org.eclipse.jetty.io.AsyncEndPoint;
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31 import org.eclipse.jetty.io.Buffer;
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32 import org.eclipse.jetty.io.ConnectedEndPoint;
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33 import org.eclipse.jetty.io.Connection;
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34 import org.eclipse.jetty.io.EofException;
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35 import org.eclipse.jetty.io.nio.SelectorManager.SelectSet;
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36 import org.slf4j.Logger;
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37 import org.slf4j.LoggerFactory;
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38
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39
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40 /* ------------------------------------------------------------ */
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41 /**
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42 * An Endpoint that can be scheduled by {@link SelectorManager}.
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43 */
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44 public final class SelectChannelEndPoint extends ChannelEndPoint implements AsyncEndPoint, ConnectedEndPoint
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45 {
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46 public static final Logger LOG=LoggerFactory.getLogger("org.eclipse.jetty.io.nio");
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47
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48 private final SelectorManager.SelectSet _selectSet;
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49 private final SelectorManager _manager;
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50 private SelectionKey _key;
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51 private final Runnable _handler = new Runnable()
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52 {
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53 public void run() { handle(); }
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54 };
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55
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56 /** The desired value for {@link SelectionKey#interestOps()} */
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57 private int _interestOps;
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58
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59 /**
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60 * The connection instance is the handler for any IO activity on the endpoint.
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61 * There is a different type of connection for HTTP, AJP, WebSocket and
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62 * ProxyConnect. The connection may change for an SCEP as it is upgraded
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63 * from HTTP to proxy connect or websocket.
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64 */
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65 private volatile AsyncConnection _connection;
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66
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67 private static final int STATE_NEEDS_DISPATCH = -1;
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68 private static final int STATE_UNDISPATCHED = 0;
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69 private static final int STATE_DISPATCHED = 1;
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70 private int _state;
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71
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72 /** true if the last write operation succeed and wrote all offered bytes */
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73 private volatile boolean _writable = true;
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74
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75 /** True if a thread has is blocked in {@link #blockReadable(long)} */
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76 private boolean _readBlocked;
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77
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78 /** True if a thread has is blocked in {@link #blockWritable(long)} */
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79 private boolean _writeBlocked;
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80
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81 /** true if {@link SelectSet#destroyEndPoint(SelectChannelEndPoint)} has not been called */
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82 private boolean _open;
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83
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84 private boolean _ishut;
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85
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86 public SelectChannelEndPoint(SocketChannel channel, SelectSet selectSet, SelectionKey key, int maxIdleTime)
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87 throws IOException
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88 {
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89 super(channel, maxIdleTime);
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90
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91 _manager = selectSet.getManager();
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92 _selectSet = selectSet;
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93 _state = STATE_UNDISPATCHED;
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94 _open = true;
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95 _key = key;
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96 }
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97
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98 @Override
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99 public Connection getConnection()
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100 {
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101 return _connection;
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102 }
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103
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104 @Override
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105 public void setConnection(Connection connection)
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106 {
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107 _connection = (AsyncConnection)connection;
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108 }
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109
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110 /* ------------------------------------------------------------ */
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111 /** Called by selectSet to schedule handling
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112 *
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113 */
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114 public synchronized void schedule()
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115 {
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116 // If there is no key, then do nothing
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117 if (_key == null || !_key.isValid())
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118 {
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119 _readBlocked = false;
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120 _writeBlocked = false;
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121 this.notifyAll();
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122 return;
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123 }
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124
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125 // If there are threads dispatched reading and writing
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126 if (_readBlocked || _writeBlocked)
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127 {
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128 // assert _dispatched;
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129 if (_readBlocked && _key.isReadable())
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130 _readBlocked=false;
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131 if (_writeBlocked && _key.isWritable())
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132 _writeBlocked = false;
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133
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134 // wake them up is as good as a dispatched.
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135 this.notifyAll();
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136
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137 // we are not interested in further selecting
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138 _key.interestOps(0);
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139 if (_state<STATE_DISPATCHED)
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140 updateKey();
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141 return;
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142 }
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143
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144 // Remove writeable op
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145 if ((_key.readyOps() & SelectionKey.OP_WRITE) == SelectionKey.OP_WRITE && (_key.interestOps() & SelectionKey.OP_WRITE) == SelectionKey.OP_WRITE)
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146 {
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147 // Remove writeable op
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148 _interestOps = _key.interestOps() & ~SelectionKey.OP_WRITE;
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149 _key.interestOps(_interestOps);
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150 _writable = true; // Once writable is in ops, only removed with dispatch.
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151 }
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152
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153 // If dispatched, then deregister interest
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154 if (_state>=STATE_DISPATCHED)
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155 _key.interestOps(0);
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156 else
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157 {
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158 // other wise do the dispatch
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159 dispatch();
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160 }
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161 }
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162
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163 @Override
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164 public synchronized void dispatch()
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165 {
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166 if (_state<=STATE_UNDISPATCHED)
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167 {
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168 _state = STATE_DISPATCHED;
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169 try {
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170 _manager.execute(_handler);
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171 } catch(RejectedExecutionException e) {
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172 _state = STATE_NEEDS_DISPATCH;
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173 LOG.warn("Dispatched Failed! "+this+" to "+_manager);
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174 updateKey();
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175 }
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176 }
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177 }
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178
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179 /* ------------------------------------------------------------ */
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180 /**
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181 * Called when a dispatched thread is no longer handling the endpoint.
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182 * The selection key operations are updated.
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183 * @return If false is returned, the endpoint has been redispatched and
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184 * thread must keep handling the endpoint.
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185 */
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186 private synchronized void undispatch()
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187 {
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188 _state = STATE_UNDISPATCHED;
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189 updateKey();
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190 }
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191
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192 @Override
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193 public int fill(Buffer buffer) throws IOException
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194 {
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195 int fill=super.fill(buffer);
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196 return fill;
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197 }
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198
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199 @Override
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200 public int flush(Buffer header, Buffer buffer, Buffer trailer) throws IOException
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201 {
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202 int l = super.flush(header, buffer, trailer);
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203
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204 // If there was something to write and it wasn't written, then we are not writable.
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205 if (l==0 && ( header!=null && header.hasContent() || buffer!=null && buffer.hasContent() || trailer!=null && trailer.hasContent()))
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206 {
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207 synchronized (this)
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208 {
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209 _writable = false;
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210 if (_state<STATE_DISPATCHED)
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211 updateKey();
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212 }
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213 }
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214 else if (l>0)
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215 {
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216 _writable = true;
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217 }
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218 return l;
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219 }
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220
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221 @Override
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222 public int flush(Buffer buffer) throws IOException
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223 {
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224 int l = super.flush(buffer);
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225
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226 // If there was something to write and it wasn't written, then we are not writable.
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227 if (l==0 && buffer!=null && buffer.hasContent())
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228 {
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229 synchronized (this)
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230 {
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231 _writable = false;
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232 if (_state<STATE_DISPATCHED)
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233 updateKey();
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234 }
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235 }
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236 else if (l>0)
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237 {
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238 _writable = true;
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239 }
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240
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241 return l;
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242 }
802
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243
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244 /* ------------------------------------------------------------ */
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245 /*
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246 * Allows thread to block waiting for further events.
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247 */
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248 @Override
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249 public boolean blockReadable(long timeoutMs) throws IOException
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250 {
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251 synchronized (this)
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252 {
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253 if (isInputShutdown())
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254 throw new EofException();
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255
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256 long now = _selectSet.getNow();
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257 long end = now+timeoutMs;
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258 try
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259 {
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260 _readBlocked = true;
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261 while (!isInputShutdown() && _readBlocked)
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262 {
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263 try
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264 {
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265 updateKey();
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266 this.wait(timeoutMs>0?(end-now):10000);
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267 }
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268 catch (final InterruptedException e)
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269 {
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270 LOG.warn("",e);
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271 }
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272 finally
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273 {
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274 now=_selectSet.getNow();
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275 }
802
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276
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277 if (_readBlocked && timeoutMs>0 && now>=end)
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278 return false;
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279 }
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280 }
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281 finally
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282 {
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283 _readBlocked = false;
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284 }
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285 }
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286 return true;
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287 }
802
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288
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289 /* ------------------------------------------------------------ */
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290 /*
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291 * Allows thread to block waiting for further events.
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292 */
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293 @Override
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294 public boolean blockWritable(long timeoutMs) throws IOException
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295 {
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296 synchronized (this)
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297 {
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298 if (isOutputShutdown())
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299 throw new EofException();
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300
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301 long now=_selectSet.getNow();
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diff changeset
302 long end=now+timeoutMs;
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diff changeset
303 try
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304 {
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305 _writeBlocked = true;
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diff changeset
306 while (_writeBlocked && !isOutputShutdown())
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diff changeset
307 {
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diff changeset
308 try
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diff changeset
309 {
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diff changeset
310 updateKey();
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diff changeset
311 this.wait(timeoutMs>0?(end-now):10000);
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312 }
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diff changeset
313 catch (final InterruptedException e)
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diff changeset
314 {
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315 LOG.warn("",e);
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diff changeset
316 }
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diff changeset
317 finally
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diff changeset
318 {
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diff changeset
319 now=_selectSet.getNow();
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diff changeset
320 }
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diff changeset
321 if (_writeBlocked && timeoutMs>0 && now>=end)
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322 return false;
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diff changeset
323 }
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diff changeset
324 }
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diff changeset
325 finally
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326 {
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diff changeset
327 _writeBlocked = false;
865
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diff changeset
328 }
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329 }
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330 return true;
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diff changeset
331 }
802
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332
955
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diff changeset
333 @Override
865
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diff changeset
334 public boolean hasProgressed()
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diff changeset
335 {
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diff changeset
336 return false;
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diff changeset
337 }
802
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338
865
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diff changeset
339 /* ------------------------------------------------------------ */
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diff changeset
340 /**
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diff changeset
341 * Updates selection key. Adds operations types to the selection key as needed. No operations
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diff changeset
342 * are removed as this is only done during dispatch. This method records the new key and
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
343 * schedules a call to doUpdateKey to do the keyChange
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parents: 820
diff changeset
344 */
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parents: 820
diff changeset
345 private void updateKey()
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diff changeset
346 {
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diff changeset
347 final boolean changed;
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parents: 820
diff changeset
348 synchronized (this)
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diff changeset
349 {
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diff changeset
350 int current_ops=-1;
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parents: 820
diff changeset
351 if (getChannel().isOpen())
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parents: 820
diff changeset
352 {
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parents: 820
diff changeset
353 boolean read_interest = _readBlocked || (_state<STATE_DISPATCHED && !_connection.isSuspended());
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parents: 820
diff changeset
354 boolean write_interest= _writeBlocked || (_state<STATE_DISPATCHED && !_writable);
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
355
865
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diff changeset
356 _interestOps =
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
357 ((!_socket.isInputShutdown() && read_interest ) ? SelectionKey.OP_READ : 0)
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parents: 820
diff changeset
358 | ((!_socket.isOutputShutdown()&& write_interest) ? SelectionKey.OP_WRITE : 0);
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parents: 820
diff changeset
359 try
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parents: 820
diff changeset
360 {
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parents: 820
diff changeset
361 current_ops = ((_key!=null && _key.isValid())?_key.interestOps():-1);
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
362 }
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parents: 820
diff changeset
363 catch(Exception e)
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
364 {
953
7db4a488fc82 simplify SelectorManager
Franklin Schmidt <fschmidt@gmail.com>
parents: 952
diff changeset
365 _key = null;
865
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
366 LOG.trace("",e);
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parents: 820
diff changeset
367 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
368 }
955
6f49b8dfffe6 simplify SelectChannelEndPoint
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parents: 953
diff changeset
369 changed = _interestOps!=current_ops;
865
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
370 }
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
371
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
372 if(changed)
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parents: 820
diff changeset
373 {
949
e9088af3787f remove SelectSet._changes
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parents: 948
diff changeset
374 doUpdateKey();
950
a778413aefc0 add SaneSelector
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parents: 949
diff changeset
375 _selectSet.getSelector().update();
865
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
376 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
377 }
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
378
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
379
865
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
380 /* ------------------------------------------------------------ */
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Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
381 /**
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
382 * Synchronize the interestOps with the actual key. Call is scheduled by a call to updateKey
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
383 */
949
e9088af3787f remove SelectSet._changes
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parents: 948
diff changeset
384 synchronized void doUpdateKey()
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
385 {
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
386 if (getChannel().isOpen())
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
387 {
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
388 if (_interestOps>0)
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
389 {
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
390 if (_key==null || !_key.isValid())
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
391 {
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
392 SelectableChannel sc = (SelectableChannel)getChannel();
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
393 if (sc.isRegistered())
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
394 {
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
395 updateKey();
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
396 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
397 else
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
398 {
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
399 try
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
400 {
953
7db4a488fc82 simplify SelectorManager
Franklin Schmidt <fschmidt@gmail.com>
parents: 952
diff changeset
401 _key = _selectSet.getSelector().register(sc,_interestOps,this);
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
402 }
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
403 catch (Exception e)
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
404 {
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
405 LOG.trace("",e);
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
406 if (_key!=null && _key.isValid())
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
407 {
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
408 _key.cancel();
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
409 }
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
410
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
411 if (_open)
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
412 {
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
413 _selectSet.destroyEndPoint(this);
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
414 }
955
6f49b8dfffe6 simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 953
diff changeset
415 _open = false;
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
416 _key = null;
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
417 }
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
418 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
419 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
420 else
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
421 {
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
422 _key.interestOps(_interestOps);
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
423 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
424 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
425 else
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
426 {
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
427 if (_key!=null && _key.isValid())
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
428 _key.interestOps(0);
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
429 else
953
7db4a488fc82 simplify SelectorManager
Franklin Schmidt <fschmidt@gmail.com>
parents: 952
diff changeset
430 _key = null;
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
431 }
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
432 }
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
433 else
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
434 {
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
435 if (_key!=null && _key.isValid())
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
436 _key.cancel();
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
437
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
438 if (_open)
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
439 {
955
6f49b8dfffe6 simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 953
diff changeset
440 _open = false;
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
441 _selectSet.destroyEndPoint(this);
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
442 }
949
e9088af3787f remove SelectSet._changes
Franklin Schmidt <fschmidt@gmail.com>
parents: 948
diff changeset
443 _key = null;
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
444 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
445 }
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
446
955
6f49b8dfffe6 simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 953
diff changeset
447 private void handle()
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
448 {
947
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
449 boolean dispatched = true;
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
450 try
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
451 {
947
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
452 try
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
453 {
947
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
454 while(true)
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
455 {
947
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
456 final AsyncConnection next = (AsyncConnection)_connection.handle();
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
457 if (next!=_connection)
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
458 {
947
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
459 LOG.debug("{} replaced {}",next,_connection);
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
460 _connection=next;
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
461 continue;
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
462 }
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
463 break;
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
464 }
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
465 }
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
466 catch (ClosedChannelException e)
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
467 {
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
468 LOG.trace("",e);
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
469 }
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
470 catch (EofException e)
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
471 {
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
472 LOG.debug("EOF", e);
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
473 try{close();}
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
474 catch(IOException e2){LOG.trace("",e2);}
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
475 }
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
476 catch (IOException e)
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
477 {
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
478 LOG.warn(e.toString());
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
479 try{close();}
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
480 catch(IOException e2){LOG.trace("",e2);}
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
481 }
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
482 catch (Throwable e)
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
483 {
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
484 LOG.warn("handle failed", e);
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
485 try{close();}
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
486 catch(IOException e2){LOG.trace("",e2);}
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
487 }
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
488 finally
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
489 {
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
490 if (!_ishut && isInputShutdown() && isOpen())
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
491 {
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
492 _ishut = true;
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
493 try
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
494 {
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
495 _connection.onInputShutdown();
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
496 }
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
497 catch(Throwable x)
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
498 {
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
499 LOG.warn("onInputShutdown failed", x);
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
500 try{close();}
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
501 catch(IOException e2){LOG.trace("",e2);}
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
502 }
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
503 finally
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
504 {
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
505 updateKey();
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
506 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
507 }
947
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
508 undispatch();
64f3d8dae31d simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 946
diff changeset
509 dispatched = false;
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
510 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
511 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
512 finally
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
513 {
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
514 if (dispatched)
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
515 {
947
64f3d8dae31d simplify SelectChannelEndPoint
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parents: 946
diff changeset
516 undispatch();
865
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parents: 820
diff changeset
517 }
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parents: 820
diff changeset
518 }
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parents: 820
diff changeset
519 }
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
520
865
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
521 /* ------------------------------------------------------------ */
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diff changeset
522 /*
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parents: 820
diff changeset
523 * @see org.eclipse.io.nio.ChannelEndPoint#close()
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parents: 820
diff changeset
524 */
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parents: 820
diff changeset
525 @Override
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parents: 820
diff changeset
526 public void close() throws IOException
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parents: 820
diff changeset
527 {
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diff changeset
528 try
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diff changeset
529 {
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parents: 820
diff changeset
530 super.close();
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parents: 820
diff changeset
531 }
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parents: 820
diff changeset
532 catch (IOException e)
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parents: 820
diff changeset
533 {
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parents: 820
diff changeset
534 LOG.trace("",e);
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parents: 820
diff changeset
535 }
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parents: 820
diff changeset
536 finally
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parents: 820
diff changeset
537 {
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
538 updateKey();
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
539 }
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
540 }
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
541
865
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parents: 820
diff changeset
542 @Override
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parents: 820
diff changeset
543 public String toString()
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parents: 820
diff changeset
544 {
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parents: 820
diff changeset
545 // Do NOT use synchronized (this)
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
546 // because it's very easy to deadlock when debugging is enabled.
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
547 // We do a best effort to print the right toString() and that's it.
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parents: 820
diff changeset
548 SelectionKey key = _key;
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
549 String keyString = "";
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
550 if (key != null)
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parents: 820
diff changeset
551 {
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parents: 820
diff changeset
552 if (key.isValid())
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parents: 820
diff changeset
553 {
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parents: 820
diff changeset
554 if (key.isReadable())
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
555 keyString += "r";
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
556 if (key.isWritable())
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
557 keyString += "w";
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
558 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
559 else
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
560 {
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
561 keyString += "!";
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
562 }
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
563 }
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
564 else
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
565 {
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
566 keyString += "-";
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
567 }
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
568 return String.format("SCEP@%x{l(%s)<->r(%s),s=%d,open=%b,ishut=%b,oshut=%b,rb=%b,wb=%b,w=%b,i=%d%s}-{%s}",
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
569 hashCode(),
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
570 _socket.getRemoteSocketAddress(),
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
571 _socket.getLocalSocketAddress(),
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
572 _state,
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
573 isOpen(),
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
574 isInputShutdown(),
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
575 isOutputShutdown(),
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
576 _readBlocked,
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
577 _writeBlocked,
6b210bb66c63 remove ThreadPool
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parents: 820
diff changeset
578 _writable,
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
579 _interestOps,
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
580 keyString,
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
581 _connection);
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
582 }
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
583
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
584 /* ------------------------------------------------------------ */
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
585 /**
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
586 * Don't set the SoTimeout
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
587 * @see org.eclipse.jetty.io.nio.ChannelEndPoint#setMaxIdleTime(int)
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
588 */
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
589 @Override
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
590 public void setMaxIdleTime(int timeMs) throws IOException
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
591 {
955
6f49b8dfffe6 simplify SelectChannelEndPoint
Franklin Schmidt <fschmidt@gmail.com>
parents: 953
diff changeset
592 _maxIdleTime = timeMs;
865
6b210bb66c63 remove ThreadPool
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
593 }
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
594
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
595 }