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annotate src/org/eclipse/jetty/server/nio/BlockingChannelConnector.java @ 802:3428c60d7cfc

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replace jetty jars with source
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 07 Sep 2016 21:15:48 -0600
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children 8e9db0bbf4f9
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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.server.nio;
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20
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21 import java.io.IOException;
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22 import java.net.InetSocketAddress;
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23 import java.net.Socket;
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24 import java.nio.channels.ByteChannel;
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25 import java.nio.channels.SelectionKey;
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26 import java.nio.channels.ServerSocketChannel;
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27 import java.nio.channels.SocketChannel;
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28 import java.util.Set;
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29
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30 import org.eclipse.jetty.http.HttpException;
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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.EndPoint;
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35 import org.eclipse.jetty.io.EofException;
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36 import org.eclipse.jetty.io.nio.ChannelEndPoint;
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37 import org.eclipse.jetty.server.BlockingHttpConnection;
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38 import org.eclipse.jetty.server.Request;
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39 import org.eclipse.jetty.util.ConcurrentHashSet;
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40 import org.eclipse.jetty.util.log.Log;
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41 import org.eclipse.jetty.util.log.Logger;
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42
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43
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44 /* ------------------------------------------------------------------------------- */
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45 /** Blocking NIO connector.
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46 * This connector uses efficient NIO buffers with a traditional blocking thread model.
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47 * Direct NIO buffers are used and a thread is allocated per connections.
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48 *
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49 * This connector is best used when there are a few very active connections.
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50 *
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51 * @org.apache.xbean.XBean element="blockingNioConnector" description="Creates a blocking NIO based socket connector"
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52 *
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53 *
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54 *
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55 */
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56 public class BlockingChannelConnector extends AbstractNIOConnector
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57 {
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58 private static final Logger LOG = Log.getLogger(BlockingChannelConnector.class);
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59
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60 private transient ServerSocketChannel _acceptChannel;
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61 private final Set<BlockingChannelEndPoint> _endpoints = new ConcurrentHashSet<BlockingChannelEndPoint>();
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62
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63
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64 /* ------------------------------------------------------------ */
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65 /** Constructor.
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66 *
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67 */
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68 public BlockingChannelConnector()
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69 {
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70 }
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71
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72 /* ------------------------------------------------------------ */
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73 public Object getConnection()
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74 {
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75 return _acceptChannel;
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76 }
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77
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78 /* ------------------------------------------------------------ */
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79 /**
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80 * @see org.eclipse.jetty.server.AbstractConnector#doStart()
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81 */
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82 @Override
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83 protected void doStart() throws Exception
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84 {
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85 super.doStart();
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86 getThreadPool().dispatch(new Runnable()
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87 {
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88
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89 public void run()
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90 {
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91 while (isRunning())
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92 {
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93 try
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94 {
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95 Thread.sleep(400);
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96 long now=System.currentTimeMillis();
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97 for (BlockingChannelEndPoint endp : _endpoints)
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98 {
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99 endp.checkIdleTimestamp(now);
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100 }
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101 }
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102 catch(InterruptedException e)
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103 {
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104 LOG.ignore(e);
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105 }
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106 catch(Exception e)
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107 {
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108 LOG.warn(e);
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109 }
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110 }
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111 }
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112
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113 });
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114
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115 }
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116
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117
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118 /* ------------------------------------------------------------ */
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119 public void open() throws IOException
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120 {
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121 // Create a new server socket and set to non blocking mode
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122 _acceptChannel= ServerSocketChannel.open();
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123 _acceptChannel.configureBlocking(true);
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124
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125 // Bind the server socket to the local host and port
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126 InetSocketAddress addr = getHost()==null?new InetSocketAddress(getPort()):new InetSocketAddress(getHost(),getPort());
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127 _acceptChannel.socket().bind(addr,getAcceptQueueSize());
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128 }
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129
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130 /* ------------------------------------------------------------ */
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131 public void close() throws IOException
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132 {
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133 if (_acceptChannel != null)
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134 _acceptChannel.close();
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135 _acceptChannel=null;
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136 }
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137
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138 /* ------------------------------------------------------------ */
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139 @Override
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140 public void accept(int acceptorID)
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141 throws IOException, InterruptedException
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142 {
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143 SocketChannel channel = _acceptChannel.accept();
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144 channel.configureBlocking(true);
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145 Socket socket=channel.socket();
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146 configure(socket);
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147
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148 BlockingChannelEndPoint connection=new BlockingChannelEndPoint(channel);
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149 connection.dispatch();
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150 }
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151
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152 /* ------------------------------------------------------------------------------- */
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153 @Override
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154 public void customize(EndPoint endpoint, Request request)
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155 throws IOException
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156 {
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157 super.customize(endpoint, request);
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158 endpoint.setMaxIdleTime(_maxIdleTime);
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159 configure(((SocketChannel)endpoint.getTransport()).socket());
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160 }
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161
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162
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163 /* ------------------------------------------------------------------------------- */
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164 public int getLocalPort()
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165 {
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166 if (_acceptChannel==null || !_acceptChannel.isOpen())
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167 return -1;
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168 return _acceptChannel.socket().getLocalPort();
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169 }
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170
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171 /* ------------------------------------------------------------------------------- */
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172 /* ------------------------------------------------------------------------------- */
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173 /* ------------------------------------------------------------------------------- */
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174 private class BlockingChannelEndPoint extends ChannelEndPoint implements Runnable, ConnectedEndPoint
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175 {
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176 private Connection _connection;
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177 private int _timeout;
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178 private volatile long _idleTimestamp;
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179
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180 BlockingChannelEndPoint(ByteChannel channel)
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181 throws IOException
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182 {
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183 super(channel,BlockingChannelConnector.this._maxIdleTime);
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184 _connection = new BlockingHttpConnection(BlockingChannelConnector.this,this,getServer());
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185 }
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186
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187 /* ------------------------------------------------------------ */
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188 /** Get the connection.
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189 * @return the connection
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190 */
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191 public Connection getConnection()
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192 {
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193 return _connection;
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194 }
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195
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196 /* ------------------------------------------------------------ */
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197 public void setConnection(Connection connection)
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198 {
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199 _connection=connection;
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200 }
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201
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202 /* ------------------------------------------------------------ */
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203 public void checkIdleTimestamp(long now)
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204 {
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205 if (_idleTimestamp!=0 && _timeout>0 && now>(_idleTimestamp+_timeout))
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206 {
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207 idleExpired();
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208 }
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209 }
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210
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211 /* ------------------------------------------------------------ */
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212 protected void idleExpired()
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213 {
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214 try
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215 {
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216 super.close();
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217 }
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218 catch (IOException e)
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219 {
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220 LOG.ignore(e);
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221 }
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222 }
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223
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224 /* ------------------------------------------------------------ */
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225 void dispatch() throws IOException
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226 {
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227 if (!getThreadPool().dispatch(this))
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228 {
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229 LOG.warn("dispatch failed for {}",_connection);
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230 super.close();
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231 }
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232 }
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233
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234 /* ------------------------------------------------------------ */
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235 /**
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236 * @see org.eclipse.jetty.io.nio.ChannelEndPoint#fill(org.eclipse.jetty.io.Buffer)
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237 */
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238 @Override
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239 public int fill(Buffer buffer) throws IOException
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240 {
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241 _idleTimestamp=System.currentTimeMillis();
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242 return super.fill(buffer);
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243 }
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244
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245 /* ------------------------------------------------------------ */
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246 /**
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247 * @see org.eclipse.jetty.io.nio.ChannelEndPoint#flush(org.eclipse.jetty.io.Buffer)
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248 */
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249 @Override
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250 public int flush(Buffer buffer) throws IOException
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251 {
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252 _idleTimestamp=System.currentTimeMillis();
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253 return super.flush(buffer);
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254 }
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255
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256 /* ------------------------------------------------------------ */
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257 /**
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258 * @see org.eclipse.jetty.io.nio.ChannelEndPoint#flush(org.eclipse.jetty.io.Buffer, org.eclipse.jetty.io.Buffer, org.eclipse.jetty.io.Buffer)
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259 */
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260 @Override
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diff changeset
261 public int flush(Buffer header, Buffer buffer, Buffer trailer) throws IOException
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262 {
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263 _idleTimestamp=System.currentTimeMillis();
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264 return super.flush(header,buffer,trailer);
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265 }
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266
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267 /* ------------------------------------------------------------ */
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268 public void run()
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269 {
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270 try
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271 {
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272 _timeout=getMaxIdleTime();
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273 connectionOpened(_connection);
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diff changeset
274 _endpoints.add(this);
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275
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diff changeset
276 while (isOpen())
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277 {
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278 _idleTimestamp=System.currentTimeMillis();
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diff changeset
279 if (_connection.isIdle())
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280 {
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diff changeset
281 if (getServer().getThreadPool().isLowOnThreads())
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diff changeset
282 {
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diff changeset
283 int lrmit = getLowResourcesMaxIdleTime();
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diff changeset
284 if (lrmit>=0 && _timeout!= lrmit)
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285 {
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286 _timeout=lrmit;
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287 }
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288 }
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289 }
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diff changeset
290 else
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291 {
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diff changeset
292 if (_timeout!=getMaxIdleTime())
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diff changeset
293 {
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diff changeset
294 _timeout=getMaxIdleTime();
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295 }
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296 }
3428c60d7cfc replace jetty jars with source
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297
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298 _connection = _connection.handle();
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299
3428c60d7cfc replace jetty jars with source
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300 }
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diff changeset
301 }
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diff changeset
302 catch (EofException e)
3428c60d7cfc replace jetty jars with source
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diff changeset
303 {
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304 LOG.debug("EOF", e);
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diff changeset
305 try{BlockingChannelEndPoint.this.close();}
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diff changeset
306 catch(IOException e2){LOG.ignore(e2);}
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diff changeset
307 }
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diff changeset
308 catch (HttpException e)
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diff changeset
309 {
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diff changeset
310 LOG.debug("BAD", e);
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diff changeset
311 try{super.close();}
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diff changeset
312 catch(IOException e2){LOG.ignore(e2);}
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313 }
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diff changeset
314 catch(Throwable e)
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diff changeset
315 {
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316 LOG.warn("handle failed",e);
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diff changeset
317 try{super.close();}
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diff changeset
318 catch(IOException e2){LOG.ignore(e2);}
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diff changeset
319 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
320 finally
3428c60d7cfc replace jetty jars with source
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diff changeset
321 {
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parents:
diff changeset
322 connectionClosed(_connection);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
323 _endpoints.remove(this);
3428c60d7cfc replace jetty jars with source
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diff changeset
324
3428c60d7cfc replace jetty jars with source
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diff changeset
325 // wait for client to close, but if not, close ourselves.
3428c60d7cfc replace jetty jars with source
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diff changeset
326 try
3428c60d7cfc replace jetty jars with source
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diff changeset
327 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
328 if (!_socket.isClosed())
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parents:
diff changeset
329 {
3428c60d7cfc replace jetty jars with source
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diff changeset
330 long timestamp=System.currentTimeMillis();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
331 int max_idle=getMaxIdleTime();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
332
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
333 _socket.setSoTimeout(getMaxIdleTime());
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
334 int c=0;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
335 do
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
336 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
337 c = _socket.getInputStream().read();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
338 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
339 while (c>=0 && (System.currentTimeMillis()-timestamp)<max_idle);
3428c60d7cfc replace jetty jars with source
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parents:
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340 if (!_socket.isClosed())
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341 _socket.close();
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342 }
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343 }
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344 catch(IOException e)
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345 {
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346 LOG.ignore(e);
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347 }
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348 }
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349 }
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350
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351 /* ------------------------------------------------------------ */
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352 @Override
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353 public String toString()
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354 {
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355 return String.format("BCEP@%x{l(%s)<->r(%s),open=%b,ishut=%b,oshut=%b}-{%s}",
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356 hashCode(),
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357 _socket.getRemoteSocketAddress(),
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358 _socket.getLocalSocketAddress(),
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359 isOpen(),
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360 isInputShutdown(),
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361 isOutputShutdown(),
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362 _connection);
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363 }
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364
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365 }
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366 }