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annotate src/org/eclipse/jetty/io/nio/ChannelEndPoint.java @ 1061:c880589715c7

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remove JBuffer.setGetIndex()
author Franklin Schmidt <fschmidt@gmail.com>
date Tue, 08 Nov 2016 05:54:53 -0700
parents 4afdf0f0c5bc
children 4a50422596b6
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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.io.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.net.SocketException;
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25 import java.nio.ByteBuffer;
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26 import java.nio.channels.ByteChannel;
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27 import java.nio.channels.GatheringByteChannel;
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28 import java.nio.channels.SocketChannel;
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29
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30 import org.eclipse.jetty.io.JBuffer;
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31 import org.eclipse.jetty.io.EndPoint;
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32 import org.eclipse.jetty.util.StringUtil;
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33 import org.slf4j.Logger;
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34 import org.slf4j.LoggerFactory;
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35
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36 /**
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37 * Channel End Point.
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38 * <p>Holds the channel and socket for an NIO endpoint.
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39 *
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40 */
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41 public class ChannelEndPoint implements EndPoint
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42 {
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43 private static final Logger LOG = LoggerFactory.getLogger(ChannelEndPoint.class);
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44
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45 private final SocketChannel _channel;
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46 private final ByteBuffer[] _gather2 = new ByteBuffer[2];
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47 protected final Socket _socket;
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48 private final InetSocketAddress _local;
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49 private final InetSocketAddress _remote;
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50 protected volatile int _maxIdleTime;
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51 private volatile boolean _ishut = false;
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52 private volatile boolean _oshut = false;
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53
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54 protected ChannelEndPoint(SocketChannel channel, int maxIdleTime) throws IOException
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55 {
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56 this._channel = channel;
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57 _maxIdleTime = maxIdleTime;
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58 _socket = channel.socket();
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59 _local = (InetSocketAddress)_socket.getLocalSocketAddress();
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60 _remote = (InetSocketAddress)_socket.getRemoteSocketAddress();
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61 _socket.setSoTimeout(_maxIdleTime);
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62 }
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63
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64 @Override
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65 public final boolean isBlocking()
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66 {
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67 return _channel.isBlocking();
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68 }
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69
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70 @Override
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71 public boolean blockReadable(long millisecs) throws IOException
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72 {
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73 return true;
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74 }
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75
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76 @Override
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77 public boolean blockWritable(long millisecs) throws IOException
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78 {
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79 return true;
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80 }
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81
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82 @Override
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83 public final boolean isOpen()
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84 {
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85 return _channel.isOpen();
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86 }
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87
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88 @Override
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89 public final void shutdownInput() throws IOException
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90 {
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91 LOG.debug("ishut {}", this);
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92 _ishut = true;
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93 if (_channel.isOpen())
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94 {
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95 try
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96 {
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97 if (!_socket.isInputShutdown())
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98 {
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99 _socket.shutdownInput();
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100 }
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101 }
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102 catch (SocketException e)
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103 {
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104 LOG.debug(e.toString());
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105 LOG.trace("",e);
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106 }
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107 finally
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108 {
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109 if (_oshut)
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110 {
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111 close();
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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 final void shutdownOutput() throws IOException
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119 {
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120 LOG.debug("oshut {}",this);
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121 _oshut = true;
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122 if (_channel.isOpen())
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123 {
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124 try
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125 {
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126 if (!_socket.isOutputShutdown())
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127 {
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128 _socket.shutdownOutput();
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129 }
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130 }
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131 catch (SocketException e)
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132 {
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133 LOG.debug(e.toString());
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134 LOG.trace("",e);
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135 }
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136 finally
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137 {
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138 if (_ishut)
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139 {
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140 close();
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141 }
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142 }
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143 }
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144 }
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145
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146 @Override
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147 public final boolean isOutputShutdown()
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148 {
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149 return _oshut || !_channel.isOpen() || _socket.isOutputShutdown();
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150 }
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151
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152 @Override
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153 public final boolean isInputShutdown()
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154 {
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155 return _ishut || !_channel.isOpen() || _socket.isInputShutdown();
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156 }
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157
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158 @Override
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159 public void close() throws IOException
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160 {
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161 //Thread.dumpStack();
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162 LOG.debug("close {}",this);
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163 _channel.close();
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164 }
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165
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166 @Override
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167 public int fill(JBuffer buffer) throws IOException
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168 {
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169 if (_ishut)
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170 return -1;
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171 int len = 0;
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172 final ByteBuffer bbuf = buffer.getByteBuffer();
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173
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174 //noinspection SynchronizationOnLocalVariableOrMethodParameter
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175 try
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176 {
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177 synchronized(bbuf)
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178 {
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179 try
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180 {
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181 bbuf.position(buffer.putIndex());
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182 len = _channel.read(bbuf);
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183 }
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184 finally
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185 {
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186 buffer.setPutIndex(bbuf.position());
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187 bbuf.position(0);
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188 }
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189 }
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190
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191 if (len<0 && isOpen())
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192 {
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193 if (!isInputShutdown())
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194 shutdownInput();
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195 if (isOutputShutdown())
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196 _channel.close();
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197 }
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198 }
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199 catch (IOException x)
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200 {
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201 LOG.debug("Exception while filling", x);
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202 try
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203 {
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204 if (_channel.isOpen())
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205 _channel.close();
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206 }
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207 catch (Exception xx)
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208 {
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209 LOG.trace("",xx);
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210 }
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211
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212 if (len>0)
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213 throw x;
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214 len = -1;
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215 }
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216
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217 return len;
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218 }
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219
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220 @Override
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221 public int flush(JBuffer buffer) throws IOException
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222 {
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223 int len=0;
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224 final ByteBuffer bbuf = buffer.getByteBuffer().asReadOnlyBuffer();
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225 try
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226 {
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227 bbuf.position(buffer.getIndex());
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228 bbuf.limit(buffer.putIndex());
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229 len=_channel.write(bbuf);
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230 }
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231 finally
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232 {
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233 if (len>0)
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234 buffer.skip(len);
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235 }
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236 return len;
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237 }
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238
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diff changeset
239 @Override
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240 public int flush(JBuffer header, JBuffer buffer, JBuffer trailer) throws IOException
873
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241 {
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242 int length=0;
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243
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244 if (_channel instanceof GatheringByteChannel &&
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245 header!=null && header.remaining()!=0 &&
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246 buffer!=null && buffer.remaining()!=0)
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247 {
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diff changeset
248 length = gatheringFlush(header,header.getByteBuffer(),buffer,buffer.getByteBuffer());
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249 }
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250 else
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251 {
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252 // flush header
1038
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253 if (header!=null && header.remaining()>0)
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254 length=flush(header);
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255
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diff changeset
256 // flush buffer
1038
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257 if ((header==null || header.remaining()==0) &&
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258 buffer!=null && buffer.remaining()>0)
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259 length+=flush(buffer);
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260
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261 // flush trailer
1038
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262 if ((header==null || header.remaining()==0) &&
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diff changeset
263 (buffer==null || buffer.remaining()==0) &&
b71ad168fe34 rename Buffer.length() to remaining()
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264 trailer!=null && trailer.remaining()>0)
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265 length+=flush(trailer);
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266 }
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267
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268 return length;
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269 }
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270
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271 private int gatheringFlush(JBuffer header, ByteBuffer bbuf0, JBuffer buffer, ByteBuffer bbuf1) throws IOException
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272 {
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273 int length;
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274
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275 synchronized(this)
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276 {
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277 // Adjust position indexs of buf0 and buf1
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diff changeset
278 bbuf0=bbuf0.asReadOnlyBuffer();
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279 bbuf0.position(header.getIndex());
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280 bbuf0.limit(header.putIndex());
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281 bbuf1=bbuf1.asReadOnlyBuffer();
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282 bbuf1.position(buffer.getIndex());
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283 bbuf1.limit(buffer.putIndex());
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284
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285 _gather2[0]=bbuf0;
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286 _gather2[1]=bbuf1;
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287
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288 // do the gathering write.
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diff changeset
289 length=(int)((GatheringByteChannel)_channel).write(_gather2);
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290
1038
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diff changeset
291 int hl=header.remaining();
873
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292 if (length>hl)
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293 {
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diff changeset
294 header.clear();
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295 buffer.skip(length-hl);
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diff changeset
296 }
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297 else if (length>0)
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298 {
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diff changeset
299 header.skip(length);
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300 }
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301 }
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302 return length;
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diff changeset
303 }
802
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304
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diff changeset
305 public final SocketChannel getChannel()
873
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diff changeset
306 {
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diff changeset
307 return _channel;
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diff changeset
308 }
802
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309
978
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diff changeset
310 @Override
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diff changeset
311 public final String getLocalAddr()
873
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diff changeset
312 {
978
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diff changeset
313 if (_local.getAddress()==null || _local.getAddress().isAnyLocalAddress())
873
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diff changeset
314 return StringUtil.ALL_INTERFACES;
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diff changeset
315 return _local.getAddress().getHostAddress();
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diff changeset
316 }
802
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317
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diff changeset
318 @Override
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diff changeset
319 public final String getLocalHost()
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diff changeset
320 {
978
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diff changeset
321 if (_local.getAddress()==null || _local.getAddress().isAnyLocalAddress())
873
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diff changeset
322 return StringUtil.ALL_INTERFACES;
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diff changeset
323 return _local.getAddress().getCanonicalHostName();
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diff changeset
324 }
802
3428c60d7cfc replace jetty jars with source
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diff changeset
325
978
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diff changeset
326 @Override
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diff changeset
327 public final int getLocalPort()
873
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diff changeset
328 {
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diff changeset
329 return _local.getPort();
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diff changeset
330 }
802
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diff changeset
331
978
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diff changeset
332 @Override
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diff changeset
333 public final String getRemoteAddr()
873
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diff changeset
334 {
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diff changeset
335 return _remote.getAddress().getHostAddress();
220ad4853cda remove StreamEndPoint
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diff changeset
336 }
802
3428c60d7cfc replace jetty jars with source
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diff changeset
337
978
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parents: 965
diff changeset
338 @Override
bdb6eb0fbf93 simplify ChannelEndPoint
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diff changeset
339 public final String getRemoteHost()
873
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diff changeset
340 {
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diff changeset
341 return _remote.getAddress().getCanonicalHostName();
220ad4853cda remove StreamEndPoint
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342 }
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343
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344 @Override
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345 public final int getRemotePort()
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346 {
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347 return _remote.getPort();
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348 }
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349
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350 @Override
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351 public void flush()
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352 throws IOException
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353 {
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354 }
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355
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356 @Override
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357 public final int getMaxIdleTime()
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358 {
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359 return _maxIdleTime;
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360 }
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361
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362 @Override
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363 public void setMaxIdleTime(int timeMs) throws IOException
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364 {
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365 if (timeMs!=_maxIdleTime)
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366 _socket.setSoTimeout(timeMs>0?timeMs:0);
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367 _maxIdleTime=timeMs;
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368 }
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369 }