Mercurial > hg > Applications > TreeVNC
annotate src/main/java/jp/ac/u_ryukyu/treevnc/TreeRFBProto.java @ 244:8cc07511b1d5
small fix checkDelay
| author | oc |
|---|---|
| date | Thu, 16 Oct 2014 11:03:28 +0900 |
| parents | 0ed7719c1800 |
| children | 1819e9c5d0cd |
| rev | line source |
|---|---|
| 32 | 1 package jp.ac.u_ryukyu.treevnc; |
| 28 | 2 |
| 3 import java.io.IOException; | |
| 206 | 4 import java.io.OutputStream; |
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5 import java.io.UnsupportedEncodingException; |
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6 import java.net.BindException; |
| 201 | 7 import java.net.NetworkInterface; |
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8 import java.net.ServerSocket; |
| 28 | 9 import java.net.Socket; |
| 174 | 10 import java.net.UnknownHostException; |
| 28 | 11 import java.nio.ByteBuffer; |
| 109 | 12 import java.nio.ByteOrder; |
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13 import java.util.Iterator; |
| 28 | 14 import java.util.LinkedList; |
| 15 import java.util.concurrent.atomic.AtomicInteger; | |
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16 import java.util.zip.DataFormatException; |
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17 import java.util.zip.Deflater; |
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18 import java.util.zip.Inflater; |
| 150 | 19 |
| 28 | 20 import com.glavsoft.exceptions.TransportException; |
| 107 | 21 import com.glavsoft.rfb.client.ClientToServerMessage; |
| 96 | 22 import com.glavsoft.rfb.encoding.EncodingType; |
| 28 | 23 import com.glavsoft.rfb.protocol.Protocol; |
| 24 import com.glavsoft.rfb.protocol.ProtocolContext; | |
| 25 import com.glavsoft.transport.Reader; | |
| 26 import com.glavsoft.transport.Writer; | |
| 153 | 27 import com.glavsoft.viewer.ViewerInterface; |
| 174 | 28 import com.glavsoft.viewer.swing.ConnectionParams; |
| 28 | 29 |
| 124 | 30 |
| 207 | 31 public class TreeRFBProto { |
| 231 | 32 |
| 223 | 33 final static int FramebufferUpdateRequest = 3; |
| 34 final static int CheckDelay = 11; | |
| 35 protected final static int FramebufferUpdate = 0; | |
| 36 protected ProtocolContext context; | |
| 37 private int clients = 0; | |
| 38 public MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MulticastQueue<LinkedList<ByteBuffer>>(); | |
| 39 private RequestScreenThread rThread; | |
| 40 public int acceptPort = 0; | |
| 174 | 41 private String myAddress; |
| 223 | 42 protected boolean readyReconnect = false; |
| 43 private boolean cuiVersion; | |
| 44 private long counter = 0; // packet serial number | |
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45 public ServerSocket servSock; |
| 123 | 46 private boolean permitChangeScreen = true; |
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47 private static final int INFLATE_BUFSIZE = 1024 * 100; |
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48 private Inflater inflater = new Inflater(); |
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49 private Deflater deflater = new Deflater(); |
| 174 | 50 ViewerInterface viewer; |
| 223 | 51 private short id; // my tree node id ( = 0 in root ) |
| 174 | 52 private boolean leader; |
| 53 private TreeVncCommandChannelListener acceptThread; | |
| 177 | 54 private boolean firstTime = true; |
| 174 | 55 private TreeRootFinderListener getCast; |
| 176 | 56 private CreateConnectionParam cp; |
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57 private boolean hasViewer = false; |
| 223 | 58 public boolean showTreeNode = false; |
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59 private boolean reconnecting; |
| 187 | 60 private short reconnectingId; // Change Server Request to id's node VNC server |
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61 private TreeVNCNetwork nets = new TreeVNCNetwork(); |
| 223 | 62 private boolean normalTermination; |
| 63 private TreeVncRootSelectionPanel rootSelectionPanel; | |
| 64 private boolean isTreeManager; | |
| 65 private String vncInterface; | |
| 231 | 66 public LinkedList<TreeVNCNode> nodeList; |
| 240 | 67 public boolean checkDelay = false; |
| 241 | 68 public boolean addSerialNum = false; |
| 231 | 69 |
| 223 | 70 |
| 71 public TreeRFBProto(boolean isTreeManager) { | |
| 72 rThread = new RequestScreenThread(this); | |
| 73 nets.setMyRfb(this); | |
| 74 this.isTreeManager = isTreeManager; | |
| 75 } | |
| 76 | |
| 77 public boolean isTreeManager() { | |
| 78 return isTreeManager; | |
| 79 } | |
| 207 | 80 |
| 223 | 81 public ProtocolContext getContext() { |
| 82 return context; | |
| 83 } | |
| 84 | |
| 85 /** | |
| 86 * handle new client accept | |
| 87 * it also handle TreeVNC Command | |
| 88 * @param acceptThread | |
| 89 * @param newCli | |
| 90 * @param os | |
| 91 * @param is | |
| 92 * @throws IOException | |
| 93 * @throws TransportException | |
| 94 */ | |
| 95 public void newClient(final Socket newCli,final Writer os, final Reader is) { | |
| 124 | 96 |
| 223 | 97 final int myId = clients; |
| 98 final MulticastQueue.Client<LinkedList<ByteBuffer>> c = multicastqueue.newClient(); | |
| 99 final AtomicInteger writerRunning = new AtomicInteger(); | |
| 100 writerRunning.set(1); | |
| 101 /** | |
| 102 * Timeout thread. If a client is suspended, it has top of queue | |
| 103 * indefinitely, which caused memory overflow. After the timeout, we | |
| 104 * poll the queue and discard it. Start long wait if writer is running. | |
| 105 */ | |
| 106 final Runnable timer = new Runnable() { | |
| 107 public void run() { | |
| 108 int count = 0; | |
| 109 for (;;) { | |
| 110 long timeout = 50000 / 8; | |
| 111 try { | |
| 112 synchronized (this) { | |
| 113 int state, flag; | |
| 114 writerRunning.set(0); | |
| 115 wait(timeout); | |
| 116 flag = 0; | |
| 117 while ((state = writerRunning.get()) == 0) { | |
| 118 c.poll(); // discard, should be timeout | |
| 119 count++; | |
| 120 if (flag == 0) { | |
| 121 System.out.println("Discarding " + myId | |
| 122 + " count=" + count); | |
| 123 flag = 1; | |
| 124 } | |
| 125 wait(10); // if this is too short, writer cannot | |
| 126 // take the poll, if this is too | |
| 127 // long, memory will overflow... | |
| 128 } | |
| 129 if (flag == 1) | |
| 130 System.out.println("Resuming " + myId | |
| 131 + " count=" + count); | |
| 132 if (state != 1) { | |
| 133 System.out.println("Client died " + myId); | |
| 134 break; | |
| 135 } | |
| 136 } | |
| 137 } catch (InterruptedException e) { | |
| 138 } | |
| 139 } | |
| 140 } | |
| 141 }; | |
| 142 new Thread(timer, "timer-discard-multicastqueue").start(); | |
| 143 /** | |
| 144 * handle command from lower node | |
| 145 */ | |
| 146 final Runnable reader = new Runnable() { | |
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147 public void run() { |
| 223 | 148 for (;;) { |
| 149 try { | |
| 150 final byte b[] = new byte[4096]; | |
| 151 final int c = is.readByte(b); | |
| 152 if (c <= 0) | |
| 153 throw new IOException(); | |
| 154 if (isTreeManager()) { | |
| 155 if (b[0] == ClientToServerMessage.SERVER_CHANGE_REQUEST) { | |
| 156 if (permitChangeScreen()) { | |
| 157 ByteBuffer buf = ByteBuffer.wrap(b); | |
| 158 buf.order(ByteOrder.BIG_ENDIAN); | |
| 159 short id = buf.getShort(2); | |
| 160 int length = buf.getInt(4); | |
| 161 if (length == 0) | |
| 162 continue; | |
| 163 String newHostName = new String(b, 8, length); | |
| 164 System.out.println("Root server change request :" + newHostName); | |
| 165 // please remove these numbers. | |
| 166 if (viewer != null) { | |
| 230 | 167 changeVNCServer(viewer, newHostName, 3200, 1980, id); |
| 223 | 168 } |
| 169 } else { | |
| 170 continue; | |
| 171 } | |
| 230 | 172 } else if (b[0] == ClientToServerMessage.CHECK_DELAY_REPLY) { |
| 173 ByteBuffer buf = ByteBuffer.wrap(b); | |
| 174 buf.order(ByteOrder.BIG_ENDIAN); | |
| 233 | 175 // getNodeNum(port, hostname, localhostname); |
| 234 | 176 buf.getShort(); |
| 177 Long time = buf.getLong(); | |
| 178 int port = buf.getInt(); | |
| 179 int addressLength = buf.getInt(); | |
| 180 byte[] byteAddress = new byte[addressLength]; | |
| 181 buf.get(byteAddress); | |
| 182 String address = new String(byteAddress, "UTF-8"); | |
| 235 | 183 int nodeNum = getNodeNum(port, address); |
| 230 | 184 Long delay = System.currentTimeMillis() - time; |
| 244 | 185 double halfDelay = (double) delay / 2; |
| 186 System.out.println("nodeNum" + nodeNum + ", port = " + port + ", address = " + address + ", delay = " + halfDelay); | |
| 239 | 187 |
| 188 // checkNodeNum(); | |
| 189 // readSendData(check); | |
| 190 | |
| 223 | 191 } |
| 192 } else if (b[0] == ClientToServerMessage.SERVER_CHANGE_REQUEST) { | |
| 193 ClientToServerMessage sc = new ClientToServerMessage() { | |
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194 @Override |
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195 public void send(Writer writer) |
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196 throws TransportException { |
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197 writer.write(b,0,c); |
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198 } |
| 223 | 199 }; |
| 200 context.sendMessage(sc); | |
| 230 | 201 } else if (b[0] == ClientToServerMessage.CHECK_DELAY_REPLY) { |
| 202 ClientToServerMessage checkDelayReply = new ClientToServerMessage() { | |
| 203 @Override | |
| 204 public void send(Writer writer) | |
| 205 throws TransportException { | |
| 206 writer.write(b,0,c); | |
| 207 } | |
| 208 }; | |
| 209 context.sendMessage(checkDelayReply); | |
| 223 | 210 } |
| 211 } catch (Exception e) { | |
| 212 try { | |
| 213 writerRunning.set(2); | |
| 214 os.close(); | |
| 215 is.close(); | |
| 216 break; | |
| 217 } catch (IOException e1) { | |
| 218 } catch (TransportException e1) { | |
| 219 e1.printStackTrace(); | |
| 220 } | |
| 221 return; | |
| 222 } | |
| 223 } | |
| 224 } | |
| 107 | 225 |
| 223 | 226 }; |
| 227 /** | |
| 228 * send packets to a client (one thread for each client ) | |
| 229 */ | |
| 230 Runnable sender = new Runnable() { | |
| 231 public void run() { | |
| 232 writerRunning.set(1); | |
| 233 try { | |
| 234 requestThreadNotify(); | |
| 239 | 235 |
| 223 | 236 // after this, we discard upward packet. |
| 239 | 237 new Thread(reader, "upward-packet-processing").start(); |
| 238 | |
| 223 | 239 for (;;) { |
| 240 LinkedList<ByteBuffer> bufs = c.poll(); | |
| 239 | 241 |
| 223 | 242 int inputIndex = 0; |
| 243 ByteBuffer header = bufs.get(inputIndex); | |
| 244 if (header == null) | |
| 245 continue; | |
| 246 writeToClient(os, bufs, inputIndex); | |
| 247 writerRunning.set(1); // yes my client is awaking. | |
| 248 } | |
| 249 } catch (Exception e) { | |
| 250 try { | |
| 251 writerRunning.set(2); | |
| 252 os.close(); | |
| 253 } catch (IOException e1) { | |
| 254 System.out.println("root writer close faild :" + e1); | |
| 255 } | |
| 256 System.out.println("root writer faild :" + e); | |
| 257 /* if socket closed cliList.remove(newCli); */ | |
| 258 } | |
| 259 } | |
| 28 | 260 |
| 223 | 261 public void writeToClient(final Writer os, |
| 262 LinkedList<ByteBuffer> bufs, int inputIndex) | |
| 263 throws TransportException { | |
| 264 while (inputIndex < bufs.size()) { | |
| 265 ByteBuffer b = bufs.get(inputIndex++); | |
| 266 os.write(b.array(), b.position(), b.limit()); | |
| 267 } | |
| 268 os.flush(); | |
| 269 bufs = null; | |
| 270 multicastqueue.heapAvailable(); | |
| 271 } | |
| 272 }; | |
| 273 clients++; | |
| 274 new Thread(sender, "writer-to-lower-node").start(); | |
| 28 | 275 |
| 223 | 276 } |
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277 |
| 223 | 278 |
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279 |
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280 public boolean permitChangeScreen() { |
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281 return permitChangeScreen; |
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282 } |
| 223 | 283 |
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284 |
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285 public void setPermitChangeScreen(boolean v) { |
| 223 | 286 permitChangeScreen = v; |
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287 } |
| 223 | 288 |
| 289 public void requestThreadNotify() { | |
| 290 rThread.reStart(); | |
| 291 } | |
| 292 | |
| 293 | |
| 28 | 294 public void setProtocolContext(Protocol workingProtocol) { |
| 295 context = workingProtocol; | |
| 296 } | |
| 29 | 297 |
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298 public Socket accept() throws IOException { |
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299 return servSock.accept(); |
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300 } |
| 31 | 301 |
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302 public int selectPort(int p) { |
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303 int port = p; |
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304 while (true) { |
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305 try { |
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306 servSock = new ServerSocket(port); |
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307 acceptPort = port; |
| 181 | 308 myAddress = "127.0.0.1"; |
| 207 | 309 nets.getNetworkInterfaces(); |
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310 break; |
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311 } catch (BindException e) { |
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312 port++; |
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313 continue; |
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314 } catch (IOException e) { |
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315 |
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316 } |
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317 } |
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318 System.out.println("accept port = " + port); |
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319 return port; |
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320 } |
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321 |
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322 |
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323 |
| 223 | 324 public void writeFramebufferUpdateRequest(int x, int y, int w, int h, |
| 325 boolean incremental) throws TransportException { | |
| 326 byte[] b = new byte[10]; | |
| 327 | |
| 328 b[0] = (byte) FramebufferUpdateRequest; // 3 is FrameBufferUpdateRequest | |
| 329 b[1] = (byte) (incremental ? 1 : 0); | |
| 330 b[2] = (byte) ((x >> 8) & 0xff); | |
| 331 b[3] = (byte) (x & 0xff); | |
| 332 b[4] = (byte) ((y >> 8) & 0xff); | |
| 333 b[5] = (byte) (y & 0xff); | |
| 334 b[6] = (byte) ((w >> 8) & 0xff); | |
| 335 b[7] = (byte) (w & 0xff); | |
| 336 b[8] = (byte) ((h >> 8) & 0xff); | |
| 337 b[9] = (byte) (h & 0xff); | |
| 338 } | |
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339 |
| 223 | 340 public void setViewer(ViewerInterface v) { |
| 341 viewer = v; | |
| 342 } | |
| 343 | |
| 344 public ViewerInterface getViewer() { | |
| 345 return viewer; | |
| 346 } | |
| 347 | |
| 348 | |
| 349 void sendInitData(OutputStream os) throws IOException { | |
| 350 os.write(context.getInitData()); | |
| 351 } | |
| 352 | |
| 353 | |
| 354 public void setTerminationType(boolean setType) { | |
| 355 normalTermination = setType; | |
| 356 } | |
| 357 | |
| 358 public boolean getTerminationType() { | |
| 359 return normalTermination; | |
| 360 } | |
| 43 | 361 |
| 206 | 362 |
| 223 | 363 public void addHostToSelectionPanel(int port, String hostname,String myHostName) { |
| 364 if (rootSelectionPanel != null) { | |
| 365 rootSelectionPanel.checkBox(Integer.toString(port) + ":" + hostname + ":" + myHostName); | |
| 366 rootSelectionPanel.setButton(); | |
| 367 rootSelectionPanel.visible(); | |
| 368 } | |
| 369 } | |
| 43 | 370 |
| 223 | 371 public void createRootSelectionPanel(CreateConnectionParam cp) { |
| 372 rootSelectionPanel = new TreeVncRootSelectionPanel(); | |
| 373 rootSelectionPanel.setCp(cp); | |
| 374 } | |
| 375 | |
|
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376 public void close() { |
| 223 | 377 // none |
| 378 } | |
| 379 | |
| 380 public int getAcceptPort() { | |
| 381 return acceptPort; | |
| 382 } | |
| 383 | |
| 384 public boolean getReadyReconnect() { | |
| 385 return readyReconnect; | |
| 386 } | |
| 65 | 387 |
| 388 | |
| 223 | 389 public boolean getCuiVersion() { |
| 390 return cuiVersion; | |
| 391 } | |
| 66 | 392 |
| 223 | 393 public void setCuiVersion(boolean flag) { |
| 394 cuiVersion = flag; | |
| 395 } | |
| 396 | |
| 397 public void readCheckDelay(Reader reader) throws TransportException { | |
| 398 | |
| 399 } | |
|
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400 |
| 223 | 401 public synchronized void vncConnected(boolean ready) { |
| 402 if (ready && reconnecting) { | |
| 403 Socket vncSocket = viewer.getVNCSocket(); | |
| 404 NetworkInterface ni = nets.getInterface(vncSocket); | |
| 405 if (ni!=null) { | |
| 406 vncInterface = ni.getName(); | |
| 407 System.out.println("VNCNetworkInterface :" + vncInterface); | |
| 408 } | |
| 409 sendDesktopSizeChange(reconnectingId); | |
| 410 reconnecting = false; | |
| 411 if (reconnectingId == 0) { | |
| 412 viewer.setVisible(false); | |
| 413 } | |
| 414 } | |
| 415 if (reconnectingId!=0) { | |
| 416 readyReconnect = ready; | |
| 417 if (ready) { | |
| 418 notifyAll(); | |
| 419 } | |
| 420 } | |
| 421 } | |
|
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422 |
| 202 | 423 |
| 223 | 424 public synchronized void waitForVNCConnection() throws InterruptedException { |
| 425 if (reconnectingId!=0) { | |
| 426 while (!readyReconnect) { | |
| 427 wait(); | |
| 428 } | |
| 429 } | |
| 430 } | |
| 96 | 431 |
| 432 | |
| 223 | 433 public void sendDesktopSizeChange(short id) { |
| 434 LinkedList<ByteBuffer> desktopSize = new LinkedList<ByteBuffer>(); | |
| 435 int width = context.getFbWidth(); | |
| 436 int height = context.getFbHeight(); | |
| 437 desktopSize.add(new UpdateRectangleMessage(width, height, EncodingType.INIT_DATA, context.getInitData(),id).getMessage()); | |
| 242 | 438 addSerialNumber(desktopSize); |
| 223 | 439 multicastqueue.put(desktopSize); |
| 440 } | |
| 98 | 441 |
| 442 | |
| 223 | 443 public void addSerialNumber(LinkedList<ByteBuffer> bufs) { |
| 242 | 444 ByteBuffer serialNum = multicastqueue.allocate(4+8); // addSerialNum flag + SerialNum |
| 243 | 445 if (this.addSerialNum) { |
| 446 serialNum.putInt(1); | |
| 447 } else { | |
| 448 serialNum.putInt(0); | |
| 449 } | |
| 223 | 450 serialNum.putLong(counter++); |
| 451 serialNum.flip(); | |
| 452 bufs.addFirst(serialNum); | |
| 453 } | |
|
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454 |
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455 |
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456 public void resetDecoder() { |
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457 context.resetDecoder(); |
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458 } |
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459 |
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460 public void stopReceiverTask() { |
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461 if (context!=null) |
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462 context.cleanUpSession(null); |
|
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463 // cleanup zlib decoder for new VNCServer |
| 202 | 464 if (isTreeManager()) |
|
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465 inflater = new Inflater(); |
|
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466 } |
|
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467 |
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468 public String getMyAddress() { |
| 174 | 469 return myAddress; |
|
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470 } |
|
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471 |
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472 /** |
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473 * gzip byte arrays |
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474 * |
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475 * @param deflater |
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476 * @param inputs |
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477 * byte data[] |
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478 * @param inputIndex |
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479 * @param outputs |
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480 * byte data[] |
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481 * @return byte length in last byte array |
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482 * @throws IOException |
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483 */ |
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484 public int zip(Deflater deflater, LinkedList<ByteBuffer> inputs, |
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485 int inputIndex, LinkedList<ByteBuffer> outputs) throws IOException { |
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486 int len = 0; |
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487 ByteBuffer c1 = multicastqueue.allocate(INFLATE_BUFSIZE); |
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488 while (inputIndex < inputs.size()) { |
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489 ByteBuffer b1 = inputs.get(inputIndex++); |
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490 deflater.setInput(b1.array(), b1.position(), b1.remaining()); |
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491 /** |
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492 * If we finish() stream and reset() it, Deflater start new gzip |
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493 * stream, this makes continuous zlib reader unhappy. if we remove |
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494 * finish(), Deflater.deflate() never flushes its output. The |
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495 * original zlib deflate has flush flag. I'm pretty sure this a kind |
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496 * of bug of Java library. |
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497 */ |
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498 if (inputIndex == inputs.size()) |
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499 deflater.finish(); |
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500 int len1 = 0; |
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501 do { |
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502 len1 = deflater.deflate(c1.array(), c1.position(), |
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503 c1.remaining()); |
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504 if (len1 > 0) { |
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505 len += len1; |
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506 c1.position(c1.position() + len1); |
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507 if (c1.remaining() == 0) { |
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508 c1.flip(); |
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509 outputs.addLast(c1); |
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510 c1 = multicastqueue.allocate(INFLATE_BUFSIZE); |
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511 } |
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512 } |
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513 } while (len1 > 0 || !deflater.needsInput()); // &&!deflater.finished()); |
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514 } |
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515 if (c1.position() != 0) { |
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516 c1.flip(); |
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517 outputs.addLast(c1); |
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518 } |
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519 deflater.reset(); |
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520 return len; |
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521 } |
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522 |
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523 /** |
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524 * gunzip byte arrays |
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525 * |
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526 * @param inflater |
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527 * @param inputs |
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528 * byte data[] |
| 182 | 529 * @param bytes |
|
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530 * byte data[] |
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531 * @return number of total bytes |
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532 * @throws IOException |
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533 */ |
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534 public int unzip(Inflater inflater, LinkedList<ByteBuffer> inputs, |
| 182 | 535 int inputIndex, byte[] bytes, int bufSize) |
| 223 | 536 throws DataFormatException { |
| 182 | 537 int position = 0; |
| 538 int limit = bytes.length; | |
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539 while (inputIndex < inputs.size()) { |
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540 ByteBuffer input = inputs.get(inputIndex++); |
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541 inflater.setInput(input.array(), input.position(), input.limit()); |
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542 // if (inputIndex==inputs.size()) if inflater/deflater has symmetry, |
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543 // we need this |
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544 // inflater.end(); but this won't work |
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545 do { |
| 182 | 546 int len0 = inflater.inflate(bytes, position, |
| 547 limit-position); | |
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548 if (len0 > 0) { |
| 223 | 549 position += len0; |
| 182 | 550 if (position > limit) { |
| 223 | 551 throw new DataFormatException(); |
|
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552 } |
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553 } |
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554 } while (!inflater.needsInput()); |
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555 } |
| 182 | 556 return position; |
|
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557 } |
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558 |
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559 /** |
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560 * read FrameBuffferUpdate. If it is ZLE, make it ZLEE which is self contained compressed packet. |
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561 * put the packet to the multicastqueue. Then normal rendering engine read the same stream using is.reset(). |
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562 * @param dataLen |
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563 * @param reader |
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564 * @throws TransportException |
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565 * @throws UnsupportedEncodingException |
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566 */ |
| 182 | 567 public void readSendData(int dataLen, Reader reader, byte[] bytes) |
|
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568 throws TransportException, UnsupportedEncodingException { |
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569 LinkedList<ByteBuffer> bufs = new LinkedList<ByteBuffer>(); |
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570 ByteBuffer header = multicastqueue.allocate(16); |
| 242 | 571 ByteBuffer serial = multicastqueue.allocate(4+8); |
| 202 | 572 if (!isTreeManager()) { |
| 242 | 573 reader.readBytes(serial.array(),0,4+8); |
| 574 serial.limit(4+8); | |
| 182 | 575 } |
| 185 | 576 reader.mark(dataLen); |
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577 reader.readBytes(header.array(), 0, 16); |
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578 header.limit(16); |
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579 if (header.get(0) == FramebufferUpdate) { |
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580 int encoding = header.getInt(12); |
| 239 | 581 |
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582 if (encoding == EncodingType.ZRLE.getId() |
|
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583 || encoding == EncodingType.ZLIB.getId()) { |
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584 // recompress into ZREE |
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585 // uncompressed result is remain in bytes |
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586 ByteBuffer len = multicastqueue.allocate(4); |
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587 reader.readBytes(len.array(), 0, 4); |
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588 len.limit(4); |
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589 ByteBuffer inputData = multicastqueue.allocate(dataLen - 20); |
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590 reader.readBytes(inputData.array(), 0, inputData.capacity()); |
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591 inputData.limit(dataLen - 20); |
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592 LinkedList<ByteBuffer> inputs = new LinkedList<ByteBuffer>(); |
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593 inputs.add(inputData); |
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594 header.putInt(12, EncodingType.ZRLEE.getId()); // means |
| 223 | 595 // recompress |
| 596 // every time | |
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597 // using new Deflecter every time is incompatible with the |
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598 // protocol, clients have to be modified. |
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599 Deflater nDeflater = deflater; // new Deflater(); |
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600 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); |
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601 try { |
| 182 | 602 unzip(inflater, inputs, 0, bytes, INFLATE_BUFSIZE); |
|
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603 // dump32(inputs); |
| 182 | 604 out.add(ByteBuffer.wrap(bytes)); |
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605 int len2 = zip(nDeflater, out, 0, bufs); |
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606 ByteBuffer blen = multicastqueue.allocate(4); |
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607 blen.putInt(len2); |
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608 blen.flip(); |
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609 bufs.addFirst(blen); |
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610 bufs.addFirst(header); |
| 242 | 611 addSerialNumber(bufs); |
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612 multicastqueue.put(bufs); |
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613 } catch (DataFormatException e) { |
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614 throw new TransportException(e); |
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615 } catch (IOException e) { |
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616 throw new TransportException(e); |
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617 } |
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618 return; |
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619 } |
| 233 | 620 |
|
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621 // ZRLEE is already compressed |
|
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622 bufs.add(header); |
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623 if (dataLen > 16) { |
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624 ByteBuffer b = multicastqueue.allocate(dataLen - 16); |
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625 reader.readBytes(b.array(), 0, dataLen - 16); |
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626 b.limit(dataLen - 16); |
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627 bufs.add(b); |
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628 } |
| 242 | 629 this.addSerialNumber(bufs); |
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630 multicastqueue.put(bufs); |
| 233 | 631 |
|
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632 return; |
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633 } |
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634 // It may be compressed. We can inflate here to avoid repeating clients |
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635 // decompressing here, |
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636 // but it may generate too many large data. It is better to do it in |
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637 // each client. |
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638 // But we have do inflation for all input data, so we have to do it |
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639 // here. |
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640 } |
| 124 | 641 |
| 223 | 642 public void setId(short id) { |
| 643 this.id = id; | |
| 644 } | |
| 169 | 645 |
| 223 | 646 public short getId() { |
| 647 return id; | |
| 648 } | |
| 169 | 649 |
| 174 | 650 public void setMyAddress(String myHostName) { |
| 651 this.myAddress = myHostName; | |
| 223 | 652 |
| 174 | 653 } |
| 654 | |
| 655 public void setLeader(boolean leader) { | |
| 656 this.leader = leader; | |
| 657 } | |
| 658 | |
| 659 public boolean isLeader() { | |
| 660 return leader; | |
| 661 } | |
| 662 | |
| 203 | 663 public void setTreeManager(String intf, TreeManagement clients) { |
| 223 | 664 nets.setTreeManager(intf, clients); |
| 174 | 665 } |
| 223 | 666 |
| 203 | 667 public TreeManagement getTreeManager(String intf) { |
| 231 | 668 TreeManagement tm = nets.getTreeManager(intf); |
| 669 this.nodeList = tm.getList(); | |
| 670 return tm; | |
| 174 | 671 } |
| 672 | |
| 673 /** | |
| 674 * chnageVNCServer is called when host change. | |
| 675 * | |
| 676 * @param vncProxyService | |
| 677 * @param hostName | |
| 678 * HostAddress | |
| 679 * @param width | |
| 680 * FrameWidth | |
| 681 * @param height | |
| 682 * FrameHeight | |
| 683 * @param id | |
| 684 * @throws InterruptedException | |
| 685 */ | |
| 686 public void changeVNCServer(ViewerInterface vncProxyService, String hostName, int width, int height, short id) | |
| 223 | 687 throws UnknownHostException, IOException, InterruptedException { |
| 688 // stop reader stop | |
| 174 | 689 stopReceiverTask(); |
| 192 | 690 reconnectingId = id; |
| 223 | 691 vncProxyService.inhelitClients(vncProxyService, hostName); |
| 187 | 692 // after connecting VNC server, rfb send SEND_INIT_DATA command and wakes me up if necessary |
| 223 | 693 reconnecting = true; |
| 694 if (reconnectingId!=0) { | |
| 695 waitForVNCConnection(); | |
| 696 } | |
| 174 | 697 } |
| 698 | |
| 699 /** | |
| 700 * start accepting children | |
| 701 * run rootFinderListener if necessary | |
| 702 */ | |
| 176 | 703 public void createConnectionAndStart(ViewerInterface v) { |
| 223 | 704 selectPort(ConnectionParams.DEFAULT_VNC_ROOT); |
| 176 | 705 startTreeVncCommandListener(); |
| 223 | 706 if(isTreeManager() && firstTime) { |
| 707 getCast = new TreeRootFinderListener(v); | |
| 239 | 708 Thread treeRootFindThread = new Thread(getCast, "tree-root-find-listener"); |
| 709 treeRootFindThread.start(); | |
| 223 | 710 firstTime = false; |
| 711 } | |
| 174 | 712 } |
| 713 | |
| 223 | 714 public void startTreeVncCommandListener() { |
| 176 | 715 acceptThread = new TreeVncCommandChannelListener(this, getAcceptPort()); |
| 223 | 716 Thread thread = new Thread(acceptThread, "TreeVNC-accept"); |
| 717 thread.start(); | |
| 176 | 718 } |
| 719 | |
| 174 | 720 public TreeVncCommandChannelListener getAcceptThread() { |
| 721 return acceptThread; | |
| 722 } | |
| 723 | |
| 176 | 724 public void setConnectionParam(CreateConnectionParam createConnectionParam) { |
| 725 cp = createConnectionParam; | |
| 726 } | |
| 727 | |
| 728 public CreateConnectionParam getConnectionParam() { | |
| 729 return cp; | |
| 730 } | |
| 731 | |
|
178
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732 public boolean hasViewer() { |
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733 return hasViewer; |
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734 } |
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735 |
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736 public void setHasViewer(boolean b) { |
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737 hasViewer = b; |
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738 } |
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739 |
|
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740 public void setReconnecting(boolean b) { |
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741 reconnecting = b; |
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742 } |
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743 |
| 223 | 744 public int getReconnectingId() { |
| 745 return reconnectingId; | |
| 746 } | |
| 747 | |
| 748 public void setShowTree(boolean showTree) { | |
| 240 | 749 this.showTreeNode = showTree; |
| 750 } | |
| 751 | |
| 752 public void setCheckDelay(boolean checkDelay) { | |
| 753 this.checkDelay = checkDelay; | |
| 223 | 754 } |
| 194 | 755 |
| 241 | 756 public void setAddSerialNum(boolean addSerialNum) { |
| 757 this.addSerialNum = addSerialNum; | |
| 758 } | |
| 759 | |
| 235 | 760 public int getNodeNum(int port, String address) { |
|
232
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761 int nodeNum = 0; |
| 235 | 762 |
|
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763 for (Iterator<TreeVNCNode> i = nodeList.iterator(); i.hasNext();) { |
|
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764 TreeVNCNode tvn = (TreeVNCNode)i.next(); |
| 235 | 765 if (port == tvn.port && address.equals(tvn.hostname)) { |
| 766 nodeNum = tvn.treeNum; | |
| 767 return nodeNum; | |
| 768 } | |
|
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769 } |
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770 return nodeNum; |
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771 } |
| 241 | 772 |
| 240 | 773 } |