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annotate src/org/eclipse/jetty/server/nio/BlockingChannelConnector.java @ 974:7422ca1ae146

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remove Connection.isIdle()
author Franklin Schmidt <fschmidt@gmail.com>
date Sat, 15 Oct 2016 23:27:08 -0600
parents 5ee36654b383
children 53b3f7d9714c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 import java.util.concurrent.ConcurrentHashMap;
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30 import java.util.concurrent.RejectedExecutionException;
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31
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32 import org.eclipse.jetty.http.HttpException;
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33 import org.eclipse.jetty.io.Buffer;
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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.Connector;
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39 import org.eclipse.jetty.server.Request;
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40 import org.eclipse.jetty.server.Server;
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41 import org.slf4j.Logger;
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42 import org.slf4j.LoggerFactory;
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43
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44
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45 /* ------------------------------------------------------------------------------- */
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46 /** Blocking NIO connector.
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47 * This connector uses efficient NIO buffers with a traditional blocking thread model.
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48 * Direct NIO buffers are used and a thread is allocated per connections.
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49 *
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50 * This connector is best used when there are a few very active connections.
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51 *
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52 * @org.apache.xbean.XBean element="blockingNioConnector" description="Creates a blocking NIO based socket connector"
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53 *
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54 *
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55 *
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56 */
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57 public final class BlockingChannelConnector extends Connector
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58 {
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59 private static final Logger LOG = LoggerFactory.getLogger(BlockingChannelConnector.class);
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60
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61 private final Set<BlockingChannelEndPoint> _endpoints = new ConcurrentHashMap<BlockingChannelEndPoint,Boolean>().newKeySet();
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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(Server server,int port)
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69 {
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70 super(server,port);
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71 }
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72
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73
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74 @Override
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75 protected void doStart() throws Exception
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76 {
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77 // Create a new server socket and set to non blocking mode
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78 _acceptChannel= ServerSocketChannel.open();
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79 _acceptChannel.configureBlocking(true);
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80
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81 // Bind the server socket to the local host and port
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82 InetSocketAddress addr = getHost()==null?new InetSocketAddress(port):new InetSocketAddress(getHost(),port);
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83 _acceptChannel.bind(addr);
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84
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85 super.doStart();
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86 server.threadPool.execute(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.trace("",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 @Override
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118 public void accept()
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119 throws IOException, InterruptedException
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120 {
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121 SocketChannel channel = _acceptChannel.accept();
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122 channel.configureBlocking(true);
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123 Socket socket = channel.socket();
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124 configure(socket);
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125
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126 BlockingChannelEndPoint connection=new BlockingChannelEndPoint(channel);
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127 connection.dispatch();
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128 }
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129
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130 @Override
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131 public void customize(EndPoint endpoint, Request request)
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132 throws IOException
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133 {
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134 super.customize(endpoint, request);
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135 endpoint.setMaxIdleTime(_maxIdleTime);
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136 configure(((SocketChannel)endpoint.getTransport()).socket());
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137 }
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138
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139
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140 private class BlockingChannelEndPoint extends ChannelEndPoint implements Runnable
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141 {
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142 private final BlockingHttpConnection _connection;
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143 private int _timeout;
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144 private volatile long _idleTimestamp;
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145
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146 BlockingChannelEndPoint(ByteChannel channel)
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147 throws IOException
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148 {
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149 super(channel,BlockingChannelConnector.this._maxIdleTime);
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150 _connection = new BlockingHttpConnection(BlockingChannelConnector.this,this);
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151 }
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152
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153 public void checkIdleTimestamp(long now)
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154 {
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155 if (_idleTimestamp!=0 && _timeout>0 && now>(_idleTimestamp+_timeout))
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156 {
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157 idleExpired();
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158 }
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159 }
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160
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161 protected void idleExpired()
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162 {
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163 try
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164 {
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165 super.close();
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166 }
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167 catch (IOException e)
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168 {
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169 LOG.trace("",e);
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170 }
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171 }
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172
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173 void dispatch() throws IOException
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174 {
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175 try {
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176 server.threadPool.execute(this);
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177 } catch(RejectedExecutionException e) {
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178 LOG.warn("dispatch failed for {}",_connection);
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179 super.close();
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180 }
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181 }
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182
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183 /* ------------------------------------------------------------ */
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184 /**
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185 * @see org.eclipse.jetty.io.nio.ChannelEndPoint#fill(org.eclipse.jetty.io.Buffer)
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186 */
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187 @Override
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188 public int fill(Buffer buffer) throws IOException
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189 {
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190 _idleTimestamp=System.currentTimeMillis();
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191 return super.fill(buffer);
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192 }
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193
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194 /* ------------------------------------------------------------ */
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195 /**
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196 * @see org.eclipse.jetty.io.nio.ChannelEndPoint#flush(org.eclipse.jetty.io.Buffer)
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197 */
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198 @Override
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199 public int flush(Buffer buffer) throws IOException
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200 {
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201 _idleTimestamp=System.currentTimeMillis();
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202 return super.flush(buffer);
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203 }
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204
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205 /* ------------------------------------------------------------ */
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206 /**
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207 * @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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208 */
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209 @Override
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210 public int flush(Buffer header, Buffer buffer, Buffer trailer) throws IOException
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211 {
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212 _idleTimestamp=System.currentTimeMillis();
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213 return super.flush(header,buffer,trailer);
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214 }
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215
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216 /* ------------------------------------------------------------ */
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217 public void run()
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218 {
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219 try
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220 {
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221 _timeout=getMaxIdleTime();
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222 _endpoints.add(this);
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223
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224 while (isOpen())
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225 {
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226 _idleTimestamp=System.currentTimeMillis();
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227 _connection.handle();
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228
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229 }
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230 }
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231 catch (EofException e)
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232 {
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233 LOG.debug("EOF", e);
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234 try{BlockingChannelEndPoint.this.close();}
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235 catch(IOException e2){LOG.trace("",e2);}
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236 }
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237 catch (HttpException e)
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238 {
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239 LOG.debug("BAD", e);
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240 try{super.close();}
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241 catch(IOException e2){LOG.trace("",e2);}
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242 }
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243 catch(Throwable e)
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244 {
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245 LOG.warn("handle failed",e);
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246 try{super.close();}
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247 catch(IOException e2){LOG.trace("",e2);}
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248 }
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249 finally
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250 {
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251 _endpoints.remove(this);
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252
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253 // wait for client to close, but if not, close ourselves.
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254 try
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255 {
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256 if (!_socket.isClosed())
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257 {
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258 long timestamp=System.currentTimeMillis();
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259 int max_idle=getMaxIdleTime();
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260
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261 _socket.setSoTimeout(getMaxIdleTime());
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262 int c=0;
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263 do
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264 {
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265 c = _socket.getInputStream().read();
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266 }
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267 while (c>=0 && (System.currentTimeMillis()-timestamp)<max_idle);
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268 if (!_socket.isClosed())
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269 _socket.close();
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270 }
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271 }
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272 catch(IOException e)
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273 {
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274 LOG.trace("",e);
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275 }
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276 }
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277 }
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278
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279 /* ------------------------------------------------------------ */
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280 @Override
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281 public String toString()
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282 {
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283 return String.format("BCEP@%x{l(%s)<->r(%s),open=%b,ishut=%b,oshut=%b}-{%s}",
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284 hashCode(),
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285 _socket.getRemoteSocketAddress(),
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286 _socket.getLocalSocketAddress(),
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287 isOpen(),
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288 isInputShutdown(),
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289 isOutputShutdown(),
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290 _connection);
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291 }
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292
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293 }
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294 }