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annotate src/org/eclipse/jetty/io/nio/SelectChannelEndPoint.java @ 918:7b62446899c6
remove unused states in AsyncContinuation
| author | Franklin Schmidt <fschmidt@gmail.com> |
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| date | Sun, 09 Oct 2016 03:37:53 -0600 |
| parents | 65e0fba5861a |
| children | b77d631b9e28 |
| 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.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; |
| 865 | 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 import org.eclipse.jetty.util.thread.Timeout.Task; |
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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 class SelectChannelEndPoint extends ChannelEndPoint implements AsyncEndPoint, ConnectedEndPoint |
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45 { |
| 865 | 46 public static final Logger LOG=LoggerFactory.getLogger("org.eclipse.jetty.io.nio"); |
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47 |
| 865 | 48 private final SelectorManager.SelectSet _selectSet; |
| 49 private final SelectorManager _manager; | |
| 50 private SelectionKey _key; | |
| 51 private final Runnable _handler = new Runnable() | |
| 52 { | |
| 53 public void run() { handle(); } | |
| 54 }; | |
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55 |
| 865 | 56 /** The desired value for {@link SelectionKey#interestOps()} */ |
| 57 private int _interestOps; | |
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58 |
| 865 | 59 /** |
| 60 * The connection instance is the handler for any IO activity on the endpoint. | |
| 61 * There is a different type of connection for HTTP, AJP, WebSocket and | |
| 62 * ProxyConnect. The connection may change for an SCEP as it is upgraded | |
| 63 * from HTTP to proxy connect or websocket. | |
| 64 */ | |
| 65 private volatile AsyncConnection _connection; | |
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66 |
| 865 | 67 private static final int STATE_NEEDS_DISPATCH=-1; |
| 68 private static final int STATE_UNDISPATCHED=0; | |
| 69 private static final int STATE_DISPATCHED=1; | |
| 70 private static final int STATE_ASYNC=2; | |
| 71 private int _state; | |
| 72 | |
| 73 private boolean _onIdle; | |
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74 |
| 865 | 75 /** true if the last write operation succeed and wrote all offered bytes */ |
| 76 private volatile boolean _writable = true; | |
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77 |
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78 |
| 865 | 79 /** True if a thread has is blocked in {@link #blockReadable(long)} */ |
| 80 private boolean _readBlocked; | |
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81 |
| 865 | 82 /** True if a thread has is blocked in {@link #blockWritable(long)} */ |
| 83 private boolean _writeBlocked; | |
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84 |
| 865 | 85 /** true if {@link SelectSet#destroyEndPoint(SelectChannelEndPoint)} has not been called */ |
| 86 private boolean _open; | |
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87 |
| 865 | 88 private volatile long _idleTimestamp; |
| 89 private volatile boolean _checkIdle; | |
| 90 | |
| 91 private boolean _interruptable; | |
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92 |
| 865 | 93 private boolean _ishut; |
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94 |
| 865 | 95 /* ------------------------------------------------------------ */ |
| 96 public SelectChannelEndPoint(SocketChannel channel, SelectSet selectSet, SelectionKey key, int maxIdleTime) | |
| 97 throws IOException | |
| 98 { | |
| 99 super(channel, maxIdleTime); | |
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100 |
| 865 | 101 _manager = selectSet.getManager(); |
| 102 _selectSet = selectSet; | |
| 103 _state=STATE_UNDISPATCHED; | |
| 104 _onIdle=false; | |
| 105 _open=true; | |
| 106 _key = key; | |
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107 |
| 865 | 108 setCheckForIdle(true); |
| 109 } | |
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110 |
| 865 | 111 /* ------------------------------------------------------------ */ |
| 112 public SelectionKey getSelectionKey() | |
| 113 { | |
| 114 synchronized (this) | |
| 115 { | |
| 116 return _key; | |
| 117 } | |
| 118 } | |
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119 |
| 865 | 120 /* ------------------------------------------------------------ */ |
| 121 public SelectorManager getSelectManager() | |
| 122 { | |
| 123 return _manager; | |
| 124 } | |
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125 |
| 865 | 126 /* ------------------------------------------------------------ */ |
| 127 public Connection getConnection() | |
| 128 { | |
| 129 return _connection; | |
| 130 } | |
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131 |
| 865 | 132 /* ------------------------------------------------------------ */ |
| 133 public void setConnection(Connection connection) | |
| 134 { | |
| 135 _connection=(AsyncConnection)connection; | |
| 136 } | |
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137 |
| 865 | 138 /* ------------------------------------------------------------ */ |
| 139 public long getIdleTimestamp() | |
| 140 { | |
| 141 return _idleTimestamp; | |
| 142 } | |
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143 |
| 865 | 144 /* ------------------------------------------------------------ */ |
| 145 /** Called by selectSet to schedule handling | |
| 146 * | |
| 147 */ | |
| 148 public void schedule() | |
| 149 { | |
| 150 synchronized (this) | |
| 151 { | |
| 152 // If there is no key, then do nothing | |
| 153 if (_key == null || !_key.isValid()) | |
| 154 { | |
| 155 _readBlocked=false; | |
| 156 _writeBlocked=false; | |
| 157 this.notifyAll(); | |
| 158 return; | |
| 159 } | |
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160 |
| 865 | 161 // If there are threads dispatched reading and writing |
| 162 if (_readBlocked || _writeBlocked) | |
| 163 { | |
| 164 // assert _dispatched; | |
| 165 if (_readBlocked && _key.isReadable()) | |
| 166 _readBlocked=false; | |
| 167 if (_writeBlocked && _key.isWritable()) | |
| 168 _writeBlocked=false; | |
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169 |
| 865 | 170 // wake them up is as good as a dispatched. |
| 171 this.notifyAll(); | |
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172 |
| 865 | 173 // we are not interested in further selecting |
| 174 _key.interestOps(0); | |
| 175 if (_state<STATE_DISPATCHED) | |
| 176 updateKey(); | |
| 177 return; | |
| 178 } | |
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179 |
| 865 | 180 // Remove writeable op |
| 181 if ((_key.readyOps() & SelectionKey.OP_WRITE) == SelectionKey.OP_WRITE && (_key.interestOps() & SelectionKey.OP_WRITE) == SelectionKey.OP_WRITE) | |
| 182 { | |
| 183 // Remove writeable op | |
| 184 _interestOps = _key.interestOps() & ~SelectionKey.OP_WRITE; | |
| 185 _key.interestOps(_interestOps); | |
| 186 _writable = true; // Once writable is in ops, only removed with dispatch. | |
| 187 } | |
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188 |
| 865 | 189 // If dispatched, then deregister interest |
| 190 if (_state>=STATE_DISPATCHED) | |
| 191 _key.interestOps(0); | |
| 192 else | |
| 193 { | |
| 194 // other wise do the dispatch | |
| 195 dispatch(); | |
| 196 } | |
| 197 } | |
| 198 } | |
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199 |
| 865 | 200 /* ------------------------------------------------------------ */ |
| 201 public void asyncDispatch() | |
| 202 { | |
| 203 synchronized(this) | |
| 204 { | |
| 205 switch(_state) | |
| 206 { | |
| 207 case STATE_NEEDS_DISPATCH: | |
| 208 case STATE_UNDISPATCHED: | |
| 209 dispatch(); | |
| 210 break; | |
| 211 | |
| 212 case STATE_DISPATCHED: | |
| 213 case STATE_ASYNC: | |
| 214 _state=STATE_ASYNC; | |
| 215 break; | |
| 216 } | |
| 217 } | |
| 218 } | |
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219 |
| 865 | 220 /* ------------------------------------------------------------ */ |
| 221 public void dispatch() | |
| 222 { | |
| 223 synchronized(this) | |
| 224 { | |
| 225 if (_state<=STATE_UNDISPATCHED) | |
| 226 { | |
| 227 if (_onIdle) | |
| 228 _state = STATE_NEEDS_DISPATCH; | |
| 229 else | |
| 230 { | |
| 231 _state = STATE_DISPATCHED; | |
| 232 try { | |
| 233 _manager.execute(_handler); | |
| 234 } catch(RejectedExecutionException e) { | |
| 235 _state = STATE_NEEDS_DISPATCH; | |
| 236 LOG.warn("Dispatched Failed! "+this+" to "+_manager); | |
| 237 updateKey(); | |
| 238 } | |
| 239 } | |
| 240 } | |
| 241 } | |
| 242 } | |
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243 |
| 865 | 244 /* ------------------------------------------------------------ */ |
| 245 /** | |
| 246 * Called when a dispatched thread is no longer handling the endpoint. | |
| 247 * The selection key operations are updated. | |
| 248 * @return If false is returned, the endpoint has been redispatched and | |
| 249 * thread must keep handling the endpoint. | |
| 250 */ | |
| 251 protected boolean undispatch() | |
| 252 { | |
| 253 synchronized (this) | |
| 254 { | |
| 255 switch(_state) | |
| 256 { | |
| 257 case STATE_ASYNC: | |
| 258 _state=STATE_DISPATCHED; | |
| 259 return false; | |
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260 |
| 865 | 261 default: |
| 262 _state=STATE_UNDISPATCHED; | |
| 263 updateKey(); | |
| 264 return true; | |
| 265 } | |
| 266 } | |
| 267 } | |
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268 |
| 865 | 269 /* ------------------------------------------------------------ */ |
| 270 public void cancelTimeout(Task task) | |
| 271 { | |
| 272 getSelectSet().cancelTimeout(task); | |
| 273 } | |
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274 |
| 865 | 275 /* ------------------------------------------------------------ */ |
| 276 public void scheduleTimeout(Task task, long timeoutMs) | |
| 277 { | |
| 278 getSelectSet().scheduleTimeout(task,timeoutMs); | |
| 279 } | |
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280 |
| 865 | 281 /* ------------------------------------------------------------ */ |
| 282 public void setCheckForIdle(boolean check) | |
| 283 { | |
| 284 if (check) | |
| 285 { | |
| 286 _idleTimestamp=System.currentTimeMillis(); | |
| 287 _checkIdle=true; | |
| 288 } | |
| 289 else | |
| 290 _checkIdle=false; | |
| 291 } | |
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292 |
| 865 | 293 /* ------------------------------------------------------------ */ |
| 294 public boolean isCheckForIdle() | |
| 295 { | |
| 296 return _checkIdle; | |
| 297 } | |
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298 |
| 865 | 299 /* ------------------------------------------------------------ */ |
| 300 protected void notIdle() | |
| 301 { | |
| 302 _idleTimestamp=System.currentTimeMillis(); | |
| 303 } | |
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304 |
| 865 | 305 /* ------------------------------------------------------------ */ |
| 306 public void checkIdleTimestamp(long now) | |
| 307 { | |
| 308 if (isCheckForIdle() && _maxIdleTime>0) | |
| 309 { | |
| 310 final long idleForMs=now-_idleTimestamp; | |
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311 |
| 865 | 312 if (idleForMs>_maxIdleTime) |
| 313 { | |
| 314 // Don't idle out again until onIdleExpired task completes. | |
| 315 setCheckForIdle(false); | |
| 316 _manager.execute(new Runnable() | |
| 317 { | |
| 318 public void run() | |
| 319 { | |
| 320 try | |
| 321 { | |
| 322 onIdleExpired(idleForMs); | |
| 323 } | |
| 324 finally | |
| 325 { | |
| 326 setCheckForIdle(true); | |
| 327 } | |
| 328 } | |
| 329 }); | |
| 330 } | |
| 331 } | |
| 332 } | |
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333 |
| 865 | 334 /* ------------------------------------------------------------ */ |
| 335 public void onIdleExpired(long idleForMs) | |
| 336 { | |
| 337 try | |
| 338 { | |
| 339 synchronized (this) | |
| 340 { | |
| 341 _onIdle=true; | |
| 342 } | |
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343 |
| 865 | 344 _connection.onIdleExpired(idleForMs); |
| 345 } | |
| 346 finally | |
| 347 { | |
| 348 synchronized (this) | |
| 349 { | |
| 350 _onIdle=false; | |
| 351 if (_state==STATE_NEEDS_DISPATCH) | |
| 352 dispatch(); | |
| 353 } | |
| 354 } | |
| 355 } | |
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356 |
| 865 | 357 /* ------------------------------------------------------------ */ |
| 358 @Override | |
| 359 public int fill(Buffer buffer) throws IOException | |
| 360 { | |
| 361 int fill=super.fill(buffer); | |
| 362 if (fill>0) | |
| 363 notIdle(); | |
| 364 return fill; | |
| 365 } | |
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366 |
| 865 | 367 /* ------------------------------------------------------------ */ |
| 368 @Override | |
| 369 public int flush(Buffer header, Buffer buffer, Buffer trailer) throws IOException | |
| 370 { | |
| 371 int l = super.flush(header, buffer, trailer); | |
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372 |
| 865 | 373 // If there was something to write and it wasn't written, then we are not writable. |
| 374 if (l==0 && ( header!=null && header.hasContent() || buffer!=null && buffer.hasContent() || trailer!=null && trailer.hasContent())) | |
| 375 { | |
| 376 synchronized (this) | |
| 377 { | |
| 378 _writable=false; | |
| 379 if (_state<STATE_DISPATCHED) | |
| 380 updateKey(); | |
| 381 } | |
| 382 } | |
| 383 else if (l>0) | |
| 384 { | |
| 385 _writable=true; | |
| 386 notIdle(); | |
| 387 } | |
| 388 return l; | |
| 389 } | |
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390 |
| 865 | 391 /* ------------------------------------------------------------ */ |
| 392 /* | |
| 393 */ | |
| 394 @Override | |
| 395 public int flush(Buffer buffer) throws IOException | |
| 396 { | |
| 397 int l = super.flush(buffer); | |
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398 |
| 865 | 399 // If there was something to write and it wasn't written, then we are not writable. |
| 400 if (l==0 && buffer!=null && buffer.hasContent()) | |
| 401 { | |
| 402 synchronized (this) | |
| 403 { | |
| 404 _writable=false; | |
| 405 if (_state<STATE_DISPATCHED) | |
| 406 updateKey(); | |
| 407 } | |
| 408 } | |
| 409 else if (l>0) | |
| 410 { | |
| 411 _writable=true; | |
| 412 notIdle(); | |
| 413 } | |
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414 |
| 865 | 415 return l; |
| 416 } | |
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417 |
| 865 | 418 /* ------------------------------------------------------------ */ |
| 419 /* | |
| 420 * Allows thread to block waiting for further events. | |
| 421 */ | |
| 422 @Override | |
| 423 public boolean blockReadable(long timeoutMs) throws IOException | |
| 424 { | |
| 425 synchronized (this) | |
| 426 { | |
| 427 if (isInputShutdown()) | |
| 428 throw new EofException(); | |
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429 |
| 865 | 430 long now=_selectSet.getNow(); |
| 431 long end=now+timeoutMs; | |
| 432 boolean check=isCheckForIdle(); | |
| 433 setCheckForIdle(true); | |
| 434 try | |
| 435 { | |
| 436 _readBlocked=true; | |
| 437 while (!isInputShutdown() && _readBlocked) | |
| 438 { | |
| 439 try | |
| 440 { | |
| 441 updateKey(); | |
| 442 this.wait(timeoutMs>0?(end-now):10000); | |
| 443 } | |
| 444 catch (final InterruptedException e) | |
| 445 { | |
| 446 LOG.warn("",e); | |
| 447 if (_interruptable) | |
| 448 throw new InterruptedIOException(){{this.initCause(e);}}; | |
| 449 } | |
| 450 finally | |
| 451 { | |
| 452 now=_selectSet.getNow(); | |
| 453 } | |
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454 |
| 865 | 455 if (_readBlocked && timeoutMs>0 && now>=end) |
| 456 return false; | |
| 457 } | |
| 458 } | |
| 459 finally | |
| 460 { | |
| 461 _readBlocked=false; | |
| 462 setCheckForIdle(check); | |
| 463 } | |
| 464 } | |
| 465 return true; | |
| 466 } | |
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467 |
| 865 | 468 /* ------------------------------------------------------------ */ |
| 469 /* | |
| 470 * Allows thread to block waiting for further events. | |
| 471 */ | |
| 472 @Override | |
| 473 public boolean blockWritable(long timeoutMs) throws IOException | |
| 474 { | |
| 475 synchronized (this) | |
| 476 { | |
| 477 if (isOutputShutdown()) | |
| 478 throw new EofException(); | |
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479 |
| 865 | 480 long now=_selectSet.getNow(); |
| 481 long end=now+timeoutMs; | |
| 482 boolean check=isCheckForIdle(); | |
| 483 setCheckForIdle(true); | |
| 484 try | |
| 485 { | |
| 486 _writeBlocked=true; | |
| 487 while (_writeBlocked && !isOutputShutdown()) | |
| 488 { | |
| 489 try | |
| 490 { | |
| 491 updateKey(); | |
| 492 this.wait(timeoutMs>0?(end-now):10000); | |
| 493 } | |
| 494 catch (final InterruptedException e) | |
| 495 { | |
| 496 LOG.warn("",e); | |
| 497 if (_interruptable) | |
| 498 throw new InterruptedIOException(){{this.initCause(e);}}; | |
| 499 } | |
| 500 finally | |
| 501 { | |
| 502 now=_selectSet.getNow(); | |
| 503 } | |
| 504 if (_writeBlocked && timeoutMs>0 && now>=end) | |
| 505 return false; | |
| 506 } | |
| 507 } | |
| 508 finally | |
| 509 { | |
| 510 _writeBlocked=false; | |
| 511 setCheckForIdle(check); | |
| 512 } | |
| 513 } | |
| 514 return true; | |
| 515 } | |
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516 |
| 865 | 517 /* ------------------------------------------------------------ */ |
| 518 /** Set the interruptable mode of the endpoint. | |
| 519 * If set to false (default), then interrupts are assumed to be spurious | |
| 520 * and blocking operations continue unless the endpoint has been closed. | |
| 521 * If true, then interrupts of blocking operations result in InterruptedIOExceptions | |
| 522 * being thrown. | |
| 523 * @param interupable | |
| 524 */ | |
| 525 public void setInterruptable(boolean interupable) | |
| 526 { | |
| 527 synchronized (this) | |
| 528 { | |
| 529 _interruptable=interupable; | |
| 530 } | |
| 531 } | |
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532 |
| 865 | 533 /* ------------------------------------------------------------ */ |
| 534 public boolean isInterruptable() | |
| 535 { | |
| 536 return _interruptable; | |
| 537 } | |
| 538 | |
| 539 /* ------------------------------------------------------------ */ | |
| 540 /** | |
| 541 * @see org.eclipse.jetty.io.AsyncEndPoint#scheduleWrite() | |
| 542 */ | |
| 543 public void scheduleWrite() | |
| 544 { | |
| 545 if (_writable) | |
| 546 LOG.debug("Required scheduleWrite {}",this); | |
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547 |
| 865 | 548 _writable=false; |
| 549 updateKey(); | |
| 550 } | |
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551 |
| 865 | 552 /* ------------------------------------------------------------ */ |
| 553 public boolean isWritable() | |
| 554 { | |
| 555 return _writable; | |
| 556 } | |
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557 |
| 865 | 558 /* ------------------------------------------------------------ */ |
| 559 public boolean hasProgressed() | |
| 560 { | |
| 561 return false; | |
| 562 } | |
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563 |
| 865 | 564 /* ------------------------------------------------------------ */ |
| 565 /** | |
| 566 * Updates selection key. Adds operations types to the selection key as needed. No operations | |
| 567 * are removed as this is only done during dispatch. This method records the new key and | |
| 568 * schedules a call to doUpdateKey to do the keyChange | |
| 569 */ | |
| 570 private void updateKey() | |
| 571 { | |
| 572 final boolean changed; | |
| 573 synchronized (this) | |
| 574 { | |
| 575 int current_ops=-1; | |
| 576 if (getChannel().isOpen()) | |
| 577 { | |
| 578 boolean read_interest = _readBlocked || (_state<STATE_DISPATCHED && !_connection.isSuspended()); | |
| 579 boolean write_interest= _writeBlocked || (_state<STATE_DISPATCHED && !_writable); | |
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580 |
| 865 | 581 _interestOps = |
| 582 ((!_socket.isInputShutdown() && read_interest ) ? SelectionKey.OP_READ : 0) | |
| 583 | ((!_socket.isOutputShutdown()&& write_interest) ? SelectionKey.OP_WRITE : 0); | |
| 584 try | |
| 585 { | |
| 586 current_ops = ((_key!=null && _key.isValid())?_key.interestOps():-1); | |
| 587 } | |
| 588 catch(Exception e) | |
| 589 { | |
| 590 _key=null; | |
| 591 LOG.trace("",e); | |
| 592 } | |
| 593 } | |
| 594 changed=_interestOps!=current_ops; | |
| 595 } | |
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596 |
| 865 | 597 if(changed) |
| 598 { | |
| 599 _selectSet.addChange(this); | |
| 600 _selectSet.wakeup(); | |
| 601 } | |
| 602 } | |
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603 |
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604 |
| 865 | 605 /* ------------------------------------------------------------ */ |
| 606 /** | |
| 607 * Synchronize the interestOps with the actual key. Call is scheduled by a call to updateKey | |
| 608 */ | |
| 609 void doUpdateKey() | |
| 610 { | |
| 611 synchronized (this) | |
| 612 { | |
| 613 if (getChannel().isOpen()) | |
| 614 { | |
| 615 if (_interestOps>0) | |
| 616 { | |
| 617 if (_key==null || !_key.isValid()) | |
| 618 { | |
| 619 SelectableChannel sc = (SelectableChannel)getChannel(); | |
| 620 if (sc.isRegistered()) | |
| 621 { | |
| 622 updateKey(); | |
| 623 } | |
| 624 else | |
| 625 { | |
| 626 try | |
| 627 { | |
| 628 _key=((SelectableChannel)getChannel()).register(_selectSet.getSelector(),_interestOps,this); | |
| 629 } | |
| 630 catch (Exception e) | |
| 631 { | |
| 632 LOG.trace("",e); | |
| 633 if (_key!=null && _key.isValid()) | |
| 634 { | |
| 635 _key.cancel(); | |
| 636 } | |
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637 |
| 865 | 638 if (_open) |
| 639 { | |
| 640 _selectSet.destroyEndPoint(this); | |
| 641 } | |
| 642 _open=false; | |
| 643 _key = null; | |
| 644 } | |
| 645 } | |
| 646 } | |
| 647 else | |
| 648 { | |
| 649 _key.interestOps(_interestOps); | |
| 650 } | |
| 651 } | |
| 652 else | |
| 653 { | |
| 654 if (_key!=null && _key.isValid()) | |
| 655 _key.interestOps(0); | |
| 656 else | |
| 657 _key=null; | |
| 658 } | |
| 659 } | |
| 660 else | |
| 661 { | |
| 662 if (_key!=null && _key.isValid()) | |
| 663 _key.cancel(); | |
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664 |
| 865 | 665 if (_open) |
| 666 { | |
| 667 _open=false; | |
| 668 _selectSet.destroyEndPoint(this); | |
| 669 } | |
| 670 _key = null; | |
| 671 } | |
| 672 } | |
| 673 } | |
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674 |
| 865 | 675 /* ------------------------------------------------------------ */ |
| 676 /* | |
| 677 */ | |
| 678 protected void handle() | |
| 679 { | |
| 680 boolean dispatched=true; | |
| 681 try | |
| 682 { | |
| 683 while(dispatched) | |
| 684 { | |
| 685 try | |
| 686 { | |
| 687 while(true) | |
| 688 { | |
| 689 final AsyncConnection next = (AsyncConnection)_connection.handle(); | |
| 690 if (next!=_connection) | |
| 691 { | |
| 692 LOG.debug("{} replaced {}",next,_connection); | |
| 693 _connection=next; | |
| 694 continue; | |
| 695 } | |
| 696 break; | |
| 697 } | |
| 698 } | |
| 699 catch (ClosedChannelException e) | |
| 700 { | |
| 701 LOG.trace("",e); | |
| 702 } | |
| 703 catch (EofException e) | |
| 704 { | |
| 705 LOG.debug("EOF", e); | |
| 706 try{close();} | |
| 707 catch(IOException e2){LOG.trace("",e2);} | |
| 708 } | |
| 709 catch (IOException e) | |
| 710 { | |
| 711 LOG.warn(e.toString()); | |
| 712 try{close();} | |
| 713 catch(IOException e2){LOG.trace("",e2);} | |
| 714 } | |
| 715 catch (Throwable e) | |
| 716 { | |
| 717 LOG.warn("handle failed", e); | |
| 718 try{close();} | |
| 719 catch(IOException e2){LOG.trace("",e2);} | |
| 720 } | |
| 721 finally | |
| 722 { | |
| 723 if (!_ishut && isInputShutdown() && isOpen()) | |
| 724 { | |
| 725 _ishut=true; | |
| 726 try | |
| 727 { | |
| 728 _connection.onInputShutdown(); | |
| 729 } | |
| 730 catch(Throwable x) | |
| 731 { | |
| 732 LOG.warn("onInputShutdown failed", x); | |
| 733 try{close();} | |
| 734 catch(IOException e2){LOG.trace("",e2);} | |
| 735 } | |
| 736 finally | |
| 737 { | |
| 738 updateKey(); | |
| 739 } | |
| 740 } | |
| 741 dispatched=!undispatch(); | |
| 742 } | |
| 743 } | |
| 744 } | |
| 745 finally | |
| 746 { | |
| 747 if (dispatched) | |
| 748 { | |
| 749 dispatched=!undispatch(); | |
| 750 while (dispatched) | |
| 751 { | |
| 752 LOG.warn("SCEP.run() finally DISPATCHED"); | |
| 753 dispatched=!undispatch(); | |
| 754 } | |
| 755 } | |
| 756 } | |
| 757 } | |
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758 |
| 865 | 759 /* ------------------------------------------------------------ */ |
| 760 /* | |
| 761 * @see org.eclipse.io.nio.ChannelEndPoint#close() | |
| 762 */ | |
| 763 @Override | |
| 764 public void close() throws IOException | |
| 765 { | |
| 766 try | |
| 767 { | |
| 768 super.close(); | |
| 769 } | |
| 770 catch (IOException e) | |
| 771 { | |
| 772 LOG.trace("",e); | |
| 773 } | |
| 774 finally | |
| 775 { | |
| 776 updateKey(); | |
| 777 } | |
| 778 } | |
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779 |
| 865 | 780 /* ------------------------------------------------------------ */ |
| 781 @Override | |
| 782 public String toString() | |
| 783 { | |
| 784 // Do NOT use synchronized (this) | |
| 785 // because it's very easy to deadlock when debugging is enabled. | |
| 786 // We do a best effort to print the right toString() and that's it. | |
| 787 SelectionKey key = _key; | |
| 788 String keyString = ""; | |
| 789 if (key != null) | |
| 790 { | |
| 791 if (key.isValid()) | |
| 792 { | |
| 793 if (key.isReadable()) | |
| 794 keyString += "r"; | |
| 795 if (key.isWritable()) | |
| 796 keyString += "w"; | |
| 797 } | |
| 798 else | |
| 799 { | |
| 800 keyString += "!"; | |
| 801 } | |
| 802 } | |
| 803 else | |
| 804 { | |
| 805 keyString += "-"; | |
| 806 } | |
| 807 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}", | |
| 808 hashCode(), | |
| 809 _socket.getRemoteSocketAddress(), | |
| 810 _socket.getLocalSocketAddress(), | |
| 811 _state, | |
| 812 isOpen(), | |
| 813 isInputShutdown(), | |
| 814 isOutputShutdown(), | |
| 815 _readBlocked, | |
| 816 _writeBlocked, | |
| 817 _writable, | |
| 818 _interestOps, | |
| 819 keyString, | |
| 820 _connection); | |
| 821 } | |
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822 |
| 865 | 823 /* ------------------------------------------------------------ */ |
| 824 public SelectSet getSelectSet() | |
| 825 { | |
| 826 return _selectSet; | |
| 827 } | |
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828 |
| 865 | 829 /* ------------------------------------------------------------ */ |
| 830 /** | |
| 831 * Don't set the SoTimeout | |
| 832 * @see org.eclipse.jetty.io.nio.ChannelEndPoint#setMaxIdleTime(int) | |
| 833 */ | |
| 834 @Override | |
| 835 public void setMaxIdleTime(int timeMs) throws IOException | |
| 836 { | |
| 837 _maxIdleTime=timeMs; | |
| 838 } | |
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839 |
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840 } |