Mercurial > hg > Members > riono > TreeVNC_ja_comment
annotate src/main/java/jp/ac/u_ryukyu/treevnc/TreeRFBProto.java @ 496:1f3f2abc9c1b
fix zrleeBlocking
| author | oshiro |
|---|---|
| date | Mon, 11 Feb 2019 19:24:39 +0900 |
| parents | 11f587612329 |
| children | 62d6e9180a11 |
| rev | line source |
|---|---|
| 32 | 1 package jp.ac.u_ryukyu.treevnc; |
| 28 | 2 |
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3 import com.glavsoft.exceptions.TransportException; |
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4 import com.glavsoft.rfb.client.ClientToServerMessage; |
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5 import com.glavsoft.rfb.encoding.EncodingType; |
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6 import com.glavsoft.rfb.encoding.decoder.FramebufferUpdateRectangle; |
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7 import com.glavsoft.rfb.protocol.Protocol; |
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8 import com.glavsoft.rfb.protocol.ProtocolContext; |
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9 import com.glavsoft.transport.Reader; |
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10 import com.glavsoft.transport.Writer; |
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11 import com.glavsoft.viewer.ConnectionPresenter; |
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12 import com.glavsoft.viewer.ViewerInterface; |
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13 import com.glavsoft.viewer.swing.ConnectionParams; |
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14 |
| 28 | 15 import java.io.IOException; |
| 206 | 16 import java.io.OutputStream; |
|
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17 import java.io.UnsupportedEncodingException; |
| 291 | 18 import java.net.*; |
| 28 | 19 import java.nio.ByteBuffer; |
| 109 | 20 import java.nio.ByteOrder; |
| 369 | 21 import java.util.Enumeration; |
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22 import java.util.Iterator; |
| 28 | 23 import java.util.LinkedList; |
| 24 import java.util.concurrent.atomic.AtomicInteger; | |
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25 import java.util.zip.DataFormatException; |
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26 import java.util.zip.Deflater; |
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27 import java.util.zip.Inflater; |
| 150 | 28 |
| 124 | 29 |
| 207 | 30 public class TreeRFBProto { |
| 231 | 31 |
| 223 | 32 final static int CheckDelay = 11; |
| 33 protected final static int FramebufferUpdate = 0; | |
| 34 protected ProtocolContext context; | |
| 35 private int clients = 0; | |
| 36 public MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MulticastQueue<LinkedList<ByteBuffer>>(); | |
| 37 public int acceptPort = 0; | |
| 174 | 38 private String myAddress; |
| 223 | 39 private long counter = 0; // packet serial number |
|
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40 public ServerSocket servSock; |
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41 private static final int INFLATE_BUFSIZE = 1024 * 100; |
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42 private Inflater inflater = new Inflater(); |
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43 private Deflater deflater = new Deflater(); |
| 174 | 44 ViewerInterface viewer; |
| 341 | 45 private short id = 0; // my tree node id ( = 0 in root ), -1 means no parent |
| 471 | 46 private short sharingId = -1; // VNCServer's id. this is used control visivility |
| 174 | 47 private TreeVncCommandChannelListener acceptThread; |
| 48 private TreeRootFinderListener getCast; | |
| 176 | 49 private CreateConnectionParam cp; |
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50 private ConnectionPresenter connectionPresenter; |
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51 private TreeVNCNetwork nets = new TreeVNCNetwork(); |
| 223 | 52 private TreeVncRootSelectionPanel rootSelectionPanel; |
| 53 private String vncInterface; | |
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54 private TreeManagement treeManager; |
| 231 | 55 public LinkedList<TreeVNCNode> nodeList; |
| 267 | 56 |
| 57 protected boolean readyReconnect = false; | |
| 58 private boolean cuiVersion; | |
| 59 private boolean permitChangeScreen = true; | |
| 60 private boolean leader; | |
| 61 private boolean hasViewer = false; | |
| 62 private boolean normalTermination; | |
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63 |
| 267 | 64 private boolean isTreeManager; |
| 65 public boolean showTreeNode = false; | |
| 240 | 66 public boolean checkDelay = false; |
| 241 | 67 public boolean addSerialNum = false; |
| 257 | 68 public boolean fixingSize = false; |
| 69 public int fixingSizeWidth; | |
| 70 public int fixingSizeHeight; | |
| 293 | 71 private DatagramSocket socket = null; |
| 306 | 72 private byte[] originalInitData = null; |
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73 private boolean childrenMulticast = true; |
| 474 | 74 private static int uniqueNodeId = 0; // uniquenodeid in all trees (less than MAX_UNIQUE_NODE_ID) |
| 492 | 75 private int deflate_size = 65507; |
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76 |
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77 public TreeRFBProto(boolean isTreeManager, ViewerInterface viewer) { |
| 223 | 78 nets.setMyRfb(this); |
| 79 this.isTreeManager = isTreeManager; | |
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80 this.viewer = viewer; |
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81 startTreeRootFindThread(); |
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82 } |
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83 |
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84 public void startTreeRootFindThread() { |
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85 if (isTreeManager()) { |
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86 getCast = new TreeRootFinderListener(viewer); |
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87 Thread treeRootFindThread = new Thread(getCast, "tree-root-find-listener"); |
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88 treeRootFindThread.start(); |
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89 } |
| 223 | 90 } |
| 91 | |
| 92 public boolean isTreeManager() { | |
| 93 return isTreeManager; | |
| 94 } | |
| 207 | 95 |
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96 public void setIsTreeManager(boolean isTreeManager) { |
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97 this.isTreeManager = isTreeManager; |
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98 } |
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99 |
| 378 | 100 public boolean isAddSerialNum() { |
| 101 return addSerialNum; | |
| 102 } | |
| 103 | |
| 223 | 104 public ProtocolContext getContext() { |
| 105 return context; | |
| 106 } | |
| 107 | |
| 108 /** | |
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109 * handle new client accept |
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110 * it also handle TreeVNC Command |
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111 * |
| 223 | 112 * @param os |
| 113 * @param is | |
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114 * @param intf |
| 223 | 115 * @throws IOException |
| 116 * @throws TransportException | |
| 117 */ | |
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118 public void newClient(final Writer os, final Reader is, final String intf) { |
| 223 | 119 final int myId = clients; |
| 120 final MulticastQueue.Client<LinkedList<ByteBuffer>> c = multicastqueue.newClient(); | |
| 121 final AtomicInteger writerRunning = new AtomicInteger(); | |
| 122 writerRunning.set(1); | |
| 123 /** | |
| 124 * Timeout thread. If a client is suspended, it has top of queue | |
| 125 * indefinitely, which caused memory overflow. After the timeout, we | |
| 126 * poll the queue and discard it. Start long wait if writer is running. | |
| 127 */ | |
| 128 final Runnable timer = new Runnable() { | |
| 129 public void run() { | |
| 130 int count = 0; | |
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131 for (; ; ) { |
| 223 | 132 long timeout = 50000 / 8; |
| 133 try { | |
| 134 synchronized (this) { | |
| 135 int state, flag; | |
| 136 writerRunning.set(0); | |
| 137 wait(timeout); | |
| 138 flag = 0; | |
| 139 while ((state = writerRunning.get()) == 0) { | |
| 140 c.poll(); // discard, should be timeout | |
| 141 count++; | |
| 142 if (flag == 0) { | |
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143 // System.out.println("Discarding " + myId + " count=" + count); |
| 223 | 144 flag = 1; |
| 145 } | |
| 146 wait(10); // if this is too short, writer cannot | |
| 147 // take the poll, if this is too | |
| 148 // long, memory will overflow... | |
| 149 } | |
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150 // if (flag == 1) |
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151 // System.out.println("Resuming " + myId + " count=" + count); |
| 223 | 152 if (state != 1) { |
| 153 System.out.println("Client died " + myId); | |
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154 // System.out.println("task stop"); |
| 330 | 155 String rootHostName = null; |
| 156 int rootHostPort = 0; | |
| 157 String myHostName = null; | |
| 158 int myHostPort = 0; | |
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159 clients = myId; |
| 385 | 160 if (!isTreeManager) { |
| 330 | 161 rootHostName = getConnectionParam().getHostName(); |
| 162 rootHostPort = getConnectionParam().getPort(); | |
| 163 myHostName = getMyAddress(); | |
| 164 myHostPort = getAcceptPort(); | |
| 385 | 165 TreeVncProtocol echo = new TreeVncProtocol(rootHostName, rootHostPort); |
| 166 echo.lostChild(myHostName, myHostPort, myId); | |
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167 } else { |
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168 getTreeManager(intf).fixLostChild1(myId + 1); |
| 330 | 169 } |
| 223 | 170 break; |
| 171 } | |
| 172 } | |
| 173 } catch (InterruptedException e) { | |
| 325 | 174 e.printStackTrace(); |
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175 System.out.println("timer thread interrupted."); |
| 223 | 176 } |
| 177 } | |
| 178 } | |
| 179 }; | |
| 180 new Thread(timer, "timer-discard-multicastqueue").start(); | |
| 181 /** | |
| 182 * handle command from lower node | |
| 183 */ | |
| 184 final Runnable reader = new Runnable() { | |
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185 public void run() { |
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186 for (; ; ) { |
| 223 | 187 try { |
| 188 final byte b[] = new byte[4096]; | |
| 189 final int c = is.readByte(b); | |
| 190 if (c <= 0) | |
| 191 throw new IOException(); | |
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192 // case of root node. |
| 223 | 193 if (isTreeManager()) { |
| 194 if (b[0] == ClientToServerMessage.SERVER_CHANGE_REQUEST) { | |
| 195 if (permitChangeScreen()) { | |
| 196 ByteBuffer buf = ByteBuffer.wrap(b); | |
| 197 buf.order(ByteOrder.BIG_ENDIAN); | |
| 325 | 198 buf.get(); // padding |
| 257 | 199 buf.get(); |
| 200 short id = buf.getShort(); | |
| 201 int length = buf.getInt(); | |
| 325 | 202 if (length == 0) |
| 203 continue; | |
| 257 | 204 byte[] byteAddress = new byte[length]; |
| 205 buf.get(byteAddress); | |
| 325 | 206 String newHostName = new String(byteAddress, "UTF-8"); |
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207 int x = buf.getInt(); |
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208 int y = buf.getInt(); |
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209 int singleWidth = buf.getInt(); |
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210 int singleHeight = buf.getInt(); |
| 340 | 211 int port = buf.getInt(); |
| 410 | 212 int scale = buf.getInt(); |
| 476 | 213 System.out.println("Root server change request :" + newHostName + " : " + port + " id:" + id); |
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214 changeVNCServer(viewer, newHostName, port, x, y, singleWidth, singleHeight, scale, id, is, os); |
| 223 | 215 } else { |
| 216 continue; | |
| 217 } | |
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218 } else if (b[0] == ClientToServerMessage.READY_SHARE_SOUND) { |
| 293 | 219 int rtpPort = selectPort(ConnectionParams.DEFAULT_RTP_PORT); |
| 220 InetAddress hostname = InetAddress.getLocalHost(); | |
| 221 ReceiveSound receiveSound = new ReceiveSound(socket); | |
| 222 Thread receiveSoundThread = new Thread(receiveSound, "receive-sound"); | |
| 223 receiveSoundThread.start(); | |
| 230 | 224 } else if (b[0] == ClientToServerMessage.CHECK_DELAY_REPLY) { |
| 225 ByteBuffer buf = ByteBuffer.wrap(b); | |
| 226 buf.order(ByteOrder.BIG_ENDIAN); | |
| 234 | 227 buf.getShort(); |
| 228 Long time = buf.getLong(); | |
| 229 int port = buf.getInt(); | |
| 230 int addressLength = buf.getInt(); | |
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231 int dataLen = buf.getInt(); |
| 234 | 232 byte[] byteAddress = new byte[addressLength]; |
| 233 buf.get(byteAddress); | |
| 234 String address = new String(byteAddress, "UTF-8"); | |
| 235 | 235 int nodeNum = getNodeNum(port, address); |
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236 if (nodeNum != 0) { |
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237 Long delay = System.currentTimeMillis() - time; |
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238 if (delay > 3000) { |
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239 getTreeManager(intf).fixLostChild1(nodeNum); |
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240 } |
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241 System.out.println(System.currentTimeMillis() + " : receive checkDelay : nodeNum" + nodeNum + ", port : " + port + ", address : " + address + ", delay : " + delay + ", size : " + dataLen); |
|
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242 } |
| 223 | 243 } |
| 325 | 244 // case of client node. |
| 223 | 245 } else if (b[0] == ClientToServerMessage.SERVER_CHANGE_REQUEST) { |
| 295 | 246 ClientToServerMessage serverChangeRequest = new ClientToServerMessage() { |
|
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247 @Override |
|
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248 public void send(Writer writer) |
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249 throws TransportException { |
| 325 | 250 writer.write(b, 0, c); |
|
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251 } |
| 223 | 252 }; |
| 295 | 253 context.sendMessage(serverChangeRequest); |
|
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254 } else if (b[0] == ClientToServerMessage.READY_SHARE_SOUND) { |
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255 ClientToServerMessage readyShareSound = new ClientToServerMessage() { |
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256 @Override |
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257 public void send(Writer writer) |
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258 throws TransportException { |
| 325 | 259 writer.write(b, 0, c); |
|
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260 } |
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261 }; |
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262 context.sendMessage(readyShareSound); |
| 230 | 263 } else if (b[0] == ClientToServerMessage.CHECK_DELAY_REPLY) { |
| 264 ClientToServerMessage checkDelayReply = new ClientToServerMessage() { | |
| 265 @Override | |
| 266 public void send(Writer writer) | |
| 267 throws TransportException { | |
| 325 | 268 writer.write(b, 0, c); |
| 230 | 269 } |
| 270 }; | |
| 271 context.sendMessage(checkDelayReply); | |
| 223 | 272 } |
| 273 } catch (Exception e) { | |
| 274 try { | |
| 275 writerRunning.set(2); | |
| 276 os.close(); | |
| 277 is.close(); | |
| 278 break; | |
| 367 | 279 } catch (Exception e1) { |
|
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280 System.out.println("cannot close ClientToServerMessage " + e1); |
| 367 | 281 |
| 223 | 282 } |
|
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283 System.out.println("cannot read ClientToServerMessage " + e); |
| 367 | 284 |
| 223 | 285 return; |
| 286 } | |
| 325 | 287 |
| 288 /* | |
| 289 // あとで検討 | |
| 290 } catch (TransportException e) { | |
| 291 | |
| 292 } | |
| 293 */ | |
| 223 | 294 } |
| 295 } | |
| 296 }; | |
| 297 /** | |
| 298 * send packets to a client (one thread for each client ) | |
| 299 */ | |
| 300 Runnable sender = new Runnable() { | |
| 301 public void run() { | |
| 302 writerRunning.set(1); | |
| 303 try { | |
|
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304 requestThreadNotify(); // send full screen request via fullScreenRequestThread |
| 384 | 305 |
| 223 | 306 // after this, we discard upward packet. |
| 239 | 307 new Thread(reader, "upward-packet-processing").start(); |
|
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308 |
|
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309 for (; ; ) { |
| 223 | 310 LinkedList<ByteBuffer> bufs = c.poll(); |
| 311 int inputIndex = 0; | |
| 312 ByteBuffer header = bufs.get(inputIndex); | |
| 313 if (header == null) | |
| 314 continue; | |
| 315 writeToClient(os, bufs, inputIndex); | |
| 316 writerRunning.set(1); // yes my client is awaking. | |
|
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317 if (!childrenMulticast) { |
|
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318 for (; ; ) { |
|
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319 LinkedList<ByteBuffer> flag = c.poll(); |
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320 if (flag.size() == 0) { |
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321 break; |
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322 } |
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323 } |
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324 } |
| 223 | 325 } |
| 326 } catch (Exception e) { | |
| 327 try { | |
| 328 writerRunning.set(2); | |
| 329 os.close(); | |
| 330 } catch (IOException e1) { | |
|
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331 System.out.println("root writer close failed :" + e1); |
| 223 | 332 } |
|
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333 System.out.println("root writer failed :" + e); |
| 223 | 334 /* if socket closed cliList.remove(newCli); */ |
| 335 } | |
| 336 } | |
|
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337 |
| 223 | 338 public void writeToClient(final Writer os, |
|
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339 LinkedList<ByteBuffer> bufs, int inputIndex) |
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340 throws TransportException { |
| 354 | 341 while (inputIndex < bufs.size()) { |
| 223 | 342 ByteBuffer b = bufs.get(inputIndex++); |
| 343 os.write(b.array(), b.position(), b.limit()); | |
| 344 } | |
| 345 os.flush(); | |
| 346 multicastqueue.heapAvailable(); | |
| 347 } | |
| 348 }; | |
| 349 clients++; | |
| 350 new Thread(sender, "writer-to-lower-node").start(); | |
| 351 } | |
|
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352 |
|
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353 public boolean permitChangeScreen() { |
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354 return permitChangeScreen; |
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355 } |
| 223 | 356 |
|
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357 |
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358 public void setPermitChangeScreen(boolean v) { |
| 223 | 359 permitChangeScreen = v; |
|
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360 } |
| 223 | 361 |
| 362 public void requestThreadNotify() { | |
|
448
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363 // send full screen update |
| 223 | 364 } |
| 365 | |
| 366 | |
| 28 | 367 public void setProtocolContext(Protocol workingProtocol) { |
| 368 context = workingProtocol; | |
| 369 } | |
| 29 | 370 |
|
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371 public Socket accept() throws IOException { |
|
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372 return servSock.accept(); |
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373 } |
| 31 | 374 |
|
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375 public int selectPort(int p) { |
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376 int port = p; |
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377 while (true) { |
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378 try { |
|
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379 servSock = new ServerSocket(port); |
|
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380 acceptPort = port; |
| 181 | 381 myAddress = "127.0.0.1"; |
| 207 | 382 nets.getNetworkInterfaces(); |
|
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383 break; |
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384 } catch (BindException e) { |
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385 port++; |
|
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386 continue; |
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387 } catch (IOException e) { |
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388 |
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389 } |
|
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390 } |
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391 System.out.println("accept port = " + port); |
|
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392 return port; |
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393 } |
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394 |
| 223 | 395 public void setViewer(ViewerInterface v) { |
| 396 viewer = v; | |
| 397 } | |
| 398 | |
| 399 public ViewerInterface getViewer() { | |
| 400 return viewer; | |
| 401 } | |
| 402 | |
| 403 | |
| 404 void sendInitData(OutputStream os) throws IOException { | |
| 405 os.write(context.getInitData()); | |
| 406 } | |
| 407 | |
| 408 | |
| 409 public void setTerminationType(boolean setType) { | |
| 410 normalTermination = setType; | |
| 411 } | |
| 412 | |
| 413 public boolean getTerminationType() { | |
| 414 return normalTermination; | |
| 415 } | |
| 43 | 416 |
| 206 | 417 |
|
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diff
changeset
|
418 public void addHostToSelectionPanel(int port, String hostname, String myHostName) { |
| 223 | 419 if (rootSelectionPanel != null) { |
| 420 rootSelectionPanel.checkBox(Integer.toString(port) + ":" + hostname + ":" + myHostName); | |
| 384 | 421 rootSelectionPanel.visible(); |
| 223 | 422 } |
| 423 } | |
| 43 | 424 |
|
399
28d67bbfa9f1
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diff
changeset
|
425 public void createRootSelectionPanel(CreateConnectionParam cp, FindRoot getBcast) { |
|
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diff
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|
426 rootSelectionPanel = new TreeVncRootSelectionPanel(getBcast); |
| 223 | 427 rootSelectionPanel.setCp(cp); |
|
399
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428 rootSelectionPanel.visible(); |
| 223 | 429 } |
| 430 | |
|
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431 public void close() { |
| 223 | 432 // none |
| 433 } | |
| 434 | |
| 435 public int getAcceptPort() { | |
| 436 return acceptPort; | |
| 437 } | |
| 438 | |
| 439 public boolean getReadyReconnect() { | |
| 440 return readyReconnect; | |
| 441 } | |
| 65 | 442 |
| 443 | |
| 223 | 444 public boolean getCuiVersion() { |
| 445 return cuiVersion; | |
| 384 | 446 } |
| 66 | 447 |
|
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448 public void setCuiVersion(boolean flag) { |
| 223 | 449 cuiVersion = flag; |
| 450 } | |
| 451 | |
| 452 public void readCheckDelay(Reader reader) throws TransportException { | |
| 453 | |
| 454 } | |
|
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455 |
| 223 | 456 public synchronized void vncConnected(boolean ready) { |
|
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457 enableChildrenTransmission(); |
| 369 | 458 readyReconnect = ready; |
| 459 if (ready) { | |
| 460 notifyAll(); | |
| 223 | 461 } |
|
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462 } |
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463 |
| 369 | 464 public void printNetworkInterface() { |
|
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465 Socket vncSocket = viewer.getVNCSocket(); |
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466 NetworkInterface ni = nets.getInterface(vncSocket); |
|
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467 if (ni != null) { |
|
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468 vncInterface = ni.getName(); |
| 369 | 469 System.out.print("VNCNetworkInterface :" + vncInterface); |
|
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470 if (false) { |
| 370 | 471 Enumeration<InetAddress> addresses = ni.getInetAddresses(); |
| 472 while (addresses.hasMoreElements()) { | |
| 473 InetAddress adr = addresses.nextElement(); | |
| 474 System.out.print(" " + adr); | |
| 475 } | |
| 369 | 476 } |
| 477 System.out.println(); | |
|
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478 } |
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479 } |
|
94
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synchronized wait for Rfb initialization in change server.
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diff
changeset
|
480 |
| 223 | 481 public void sendDesktopSizeChange(short id) { |
| 482 LinkedList<ByteBuffer> desktopSize = new LinkedList<ByteBuffer>(); | |
|
454
432e2967eaab
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diff
changeset
|
483 int singleWidth = connectionPresenter.getSingleWidth(); |
|
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diff
changeset
|
484 int singleHeight = connectionPresenter.getSingleHeight(); |
|
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diff
changeset
|
485 int x = connectionPresenter.getX(); |
|
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diff
changeset
|
486 int y = connectionPresenter.getY(); |
|
448
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487 desktopSize.add(new ChangeDesktopSize(context.getFbWidth(), context.getFbHeight(), singleWidth,singleHeight, x, y, EncodingType.INIT_DATA, context.getInitData(), id).getMessage()); |
| 380 | 488 if (addSerialNum) { |
| 489 addSerialNumber(desktopSize); | |
| 490 } | |
| 223 | 491 multicastqueue.put(desktopSize); |
| 492 } | |
| 98 | 493 |
| 490 | 494 //public byte[] createOriginalInitData(int singleWidth, int singleHeight, String remoteDesktopName) { |
| 495 // TreeVncCommandChannelListener treeVncCommandChannelListener = new TreeVncCommandChannelListener(this, acceptPort); | |
| 496 // byte[] originalInitData = treeVncCommandChannelListener.createOriginalInitData(singleWidth, singleHeight, remoteDesktopName); | |
| 497 // return originalInitData; | |
| 498 //} | |
| 306 | 499 |
| 223 | 500 public void addSerialNumber(LinkedList<ByteBuffer> bufs) { |
|
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501 ByteBuffer serialNum = multicastqueue.allocate(4 + 8); // addSerialNum flag + SerialNum |
| 380 | 502 serialNum.putInt(1); |
| 223 | 503 serialNum.putLong(counter++); |
| 504 serialNum.flip(); | |
| 505 bufs.addFirst(serialNum); | |
| 506 } | |
|
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507 |
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508 |
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509 public void resetDecoder() { |
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510 context.resetDecoder(); |
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511 } |
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512 |
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513 public void stopReceiverTask() { |
|
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514 if (context != null) { |
|
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515 context.cleanUpSession(null); |
|
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516 context.getRfb().clearChildrenTransmission(); |
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517 } |
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518 // cleanup zlib decoder for new VNCServer |
| 202 | 519 if (isTreeManager()) |
|
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520 inflater = new Inflater(); |
|
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521 } |
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522 |
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523 public void clearChildrenTransmission() { |
| 355 | 524 // discarding does not work now. |
| 525 | |
| 526 /* | |
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527 // set discard flag |
| 354 | 528 childrenMulticast = false; |
|
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529 // put gurd erement to restart multicastqueue. |
| 354 | 530 multicastqueue.put(new LinkedList<ByteBuffer>()); |
| 355 | 531 */ |
|
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532 } |
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533 |
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534 public void enableChildrenTransmission() { |
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535 // a child senderTask may skip this flag |
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536 // durling write waiting. in this case, remaining bufferes are sent. |
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537 childrenMulticast = true; |
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538 } |
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539 |
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540 public String getMyAddress() { |
| 174 | 541 return myAddress; |
|
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542 } |
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543 |
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544 /** |
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545 * gzip byte arrays |
| 384 | 546 * |
|
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547 * @param deflater |
|
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548 * @param inputs byte data[] |
|
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549 * @param inputIndex |
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550 * @param outputs byte data[] |
|
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551 * @return byte length in last byte array |
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552 * @throws IOException |
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553 */ |
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554 public int zip(Deflater deflater, LinkedList<ByteBuffer> inputs, |
|
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555 int inputIndex, LinkedList<ByteBuffer> outputs) throws IOException { |
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556 int len = 0; |
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557 ByteBuffer c1 = multicastqueue.allocate(INFLATE_BUFSIZE); |
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558 while (inputIndex < inputs.size()) { |
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559 ByteBuffer b1 = inputs.get(inputIndex++); |
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560 deflater.setInput(b1.array(), b1.position(), b1.remaining()); |
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561 /** |
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562 * If we finish() stream and reset() it, Deflater start new gzip |
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563 * stream, this makes continuous zlib reader unhappy. if we remove |
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564 * finish(), Deflater.deflate() never flushes its output. The |
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565 * original zlib deflate has flush flag. I'm pretty sure this a kind |
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566 * of bug of Java library. |
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567 */ |
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568 if (inputIndex == inputs.size()) |
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569 deflater.finish(); |
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570 int len1 = 0; |
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571 do { |
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572 len1 = deflater.deflate(c1.array(), c1.position(), |
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573 c1.remaining()); |
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574 if (len1 > 0) { |
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575 len += len1; |
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576 c1.position(c1.position() + len1); |
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577 if (c1.remaining() == 0) { |
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578 c1.flip(); |
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579 outputs.addLast(c1); |
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580 c1 = multicastqueue.allocate(INFLATE_BUFSIZE); |
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581 } |
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582 } |
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583 } while (len1 > 0 || !deflater.needsInput()); // &&!deflater.finished()); |
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584 } |
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585 if (c1.position() != 0) { |
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586 c1.flip(); |
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587 outputs.addLast(c1); |
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588 } |
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589 deflater.reset(); |
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590 return len; |
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591 } |
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592 |
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593 /** |
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594 * gunzip byte arrays |
| 384 | 595 * |
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596 * @param inflater |
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597 * @param inputs byte data[] |
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598 * @param bytes byte data[] |
|
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599 * @return number of total bytes |
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600 * @throws IOException |
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601 */ |
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602 public int unzip(Inflater inflater, LinkedList<ByteBuffer> inputs, |
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603 int inputIndex, byte[] bytes, int bufSize) throws DataFormatException { |
| 182 | 604 int position = 0; |
| 605 int limit = bytes.length; | |
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606 while (inputIndex < inputs.size()) { |
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607 ByteBuffer input = inputs.get(inputIndex++); |
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608 inflater.setInput(input.array(), input.position(), input.limit()); |
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609 // if (inputIndex==inputs.size()) if inflater/deflater has symmetry, |
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610 // we need this |
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611 // inflater.end(); but this won't work |
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612 do { |
| 318 | 613 int len0; |
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614 len0 = inflater.inflate(bytes, position, limit - position); |
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615 if (len0 > 0) { |
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616 position += len0; |
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617 if (position > limit) throw new DataFormatException(); |
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618 } |
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619 } while (!inflater.needsInput()); |
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620 } |
| 182 | 621 return position; |
|
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622 } |
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623 |
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624 /** |
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625 * Multicast framebufferUpdate to children. |
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626 * read FrameBuffferUpdate. If it is ZLE, make it ZLEE which is self contained compressed packet. |
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627 * put the packet to the multicastqueue. Then normal rendering engine read the same stream using is.reset(). |
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628 * |
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629 * @param dataLen |
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630 * @param reader |
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631 * @throws TransportException |
| 384 | 632 * @throws UnsupportedEncodingException |
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633 */ |
| 264 | 634 public void readSendData(int dataLen, Reader reader, byte[] bytes, FramebufferUpdateRectangle rect) |
| 496 | 635 throws TransportException,UnsupportedEncodingException { |
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636 LinkedList<ByteBuffer> bufs = new LinkedList<ByteBuffer>(); |
|
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637 int BLOCKSIZE = 64 * 1024; |
|
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638 int headerLen = rect.getEncodingType() == EncodingType.CHECK_DELAY ? 24 : 16; |
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639 ByteBuffer header = multicastqueue.allocate(headerLen); |
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640 ByteBuffer serial = multicastqueue.allocate(4 + 8); |
| 378 | 641 if (!isTreeManager() && addSerialNum) { |
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642 reader.readBytes(serial.array(), 0, 4 + 8); |
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643 serial.limit(4 + 8); |
| 182 | 644 } |
| 185 | 645 reader.mark(dataLen); |
|
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646 reader.readBytes(header.array(), 0, headerLen); |
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647 header.limit(headerLen); |
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648 if (header.get(0) == FramebufferUpdate) { |
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649 int encoding = header.getInt(12); |
| 384 | 650 |
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651 if (encoding == EncodingType.ZRLE.getId() |
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652 || encoding == EncodingType.ZLIB.getId()) { |
| 494 | 653 if (true) { |
| 496 | 654 try { |
| 655 zrleeBlocking(dataLen, reader, bytes, rect, context.getPixelFormat().bitsPerPixel/8, bufs, header); | |
| 656 } catch (DataFormatException e) { | |
| 657 e.printStackTrace(); | |
| 658 } | |
| 494 | 659 return; |
| 660 } | |
|
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661 // recompress into ZREE |
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662 // uncompressed result is remain in bytes |
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663 ByteBuffer len = multicastqueue.allocate(4); |
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664 reader.readBytes(len.array(), 0, 4); |
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665 len.limit(4); |
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666 ByteBuffer inputData = multicastqueue.allocate(dataLen - 20); |
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667 reader.readBytes(inputData.array(), 0, inputData.capacity()); |
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668 inputData.limit(dataLen - 20); |
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669 LinkedList<ByteBuffer> inputs = new LinkedList<ByteBuffer>(); |
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670 inputs.add(inputData); |
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671 header.putInt(12, EncodingType.ZRLEE.getId()); // means |
| 223 | 672 // recompress |
| 673 // every time | |
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674 // using new Deflecter every time is incompatible with the |
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675 // protocol, clients have to be modified. |
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676 Deflater nDeflater = deflater; // new Deflater(); |
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677 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); |
| 380 | 678 try { |
| 182 | 679 unzip(inflater, inputs, 0, bytes, INFLATE_BUFSIZE); |
|
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680 // dump32(inputs); |
| 182 | 681 out.add(ByteBuffer.wrap(bytes)); |
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682 int len2 = zip(nDeflater, out, 0, bufs); |
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683 ByteBuffer blen = multicastqueue.allocate(4); |
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684 blen.putInt(len2); |
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685 blen.flip(); |
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686 bufs.addFirst(blen); |
|
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687 if (checkDelay) { |
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688 bufs = createCheckDelayHeader(bufs, header); |
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689 } else { |
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690 bufs.addFirst(header); |
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691 } |
| 380 | 692 if (addSerialNum) { |
| 693 addSerialNumber(bufs); | |
| 694 } | |
| 492 | 695 multicastqueue.waitput(bufs); |
| 696 } catch (IOException | InterruptedException e) { | |
| 697 throw new TransportException(e); | |
| 698 } catch (DataFormatException e) { | |
| 699 throw new TransportException(e); | |
| 700 } | |
| 701 return; | |
| 702 } | |
| 703 | |
| 704 // ZRLEE is already compressed | |
| 705 bufs.add(header); | |
| 706 if (addSerialNum) { | |
| 707 this.addSerialNumber(bufs); | |
| 708 } | |
| 709 if (dataLen > headerLen) { | |
| 710 ByteBuffer b = multicastqueue.allocate(dataLen - headerLen); | |
| 711 reader.readBytes(b.array(), 0, dataLen - headerLen); | |
| 712 b.limit(dataLen - headerLen); | |
| 713 bufs.add(b); | |
| 714 } | |
| 715 multicastqueue.put(bufs); | |
| 716 | |
| 717 return; | |
| 718 } | |
| 719 // It may be compressed. We can inflate here to avoid repeating clients | |
| 720 // decompressing here, | |
| 721 // but it may generate too many large data. It is better to do it in | |
| 722 // each client. | |
| 723 // But we have do inflation for all input data, so we have to do it | |
| 724 // here. | |
| 725 } | |
| 726 | |
| 727 /** | |
| 728 * Multicast framebufferUpdate to children. | |
| 729 * read FrameBuffferUpdate. If it is ZLE, make it ZLEE which is self contained compressed packet. | |
| 730 * put the packet to the multicastqueue. Then normal rendering engine read the same stream using is.reset(). | |
| 731 * | |
| 732 * @param dataLen | |
| 733 * @param reader | |
| 734 * @throws TransportException | |
| 735 * @throws UnsupportedEncodingException | |
| 736 */ | |
| 494 | 737 |
| 738 | |
| 496 | 739 private void zrleeBlocking(int dataLen, Reader reader, byte[] bytes, FramebufferUpdateRectangle rect, int bytePerPixel, LinkedList<ByteBuffer> bufs, ByteBuffer header) throws TransportException, DataFormatException { |
| 494 | 740 ByteBuffer len = multicastqueue.allocate(4); |
| 741 reader.readBytes(len.array(), 0, 4); | |
| 742 len.limit(4); | |
| 743 ByteBuffer inputData = multicastqueue.allocate(dataLen - 20); | |
| 744 reader.readBytes(inputData.array(), 0, inputData.capacity()); | |
| 745 inputData.limit(dataLen - 20); | |
| 746 LinkedList<ByteBuffer> inputs = new LinkedList<ByteBuffer>(); | |
| 747 inputs.add(inputData); | |
| 748 header.putInt(12, EncodingType.ZRLEE.getId()); // means | |
| 749 // recompress | |
| 750 // every time | |
| 751 // using new Deflecter every time is incompatible with the | |
| 752 // protocol, clients have to be modified. | |
| 753 Deflater nDeflater = deflater; // new Deflater(); | |
| 754 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); | |
| 755 int inflate_size = rect.width * rect.height * bytePerPixel; | |
| 492 | 756 |
| 494 | 757 unzip(inflater, inputs, 0, bytes, inflate_size); |
| 758 // dump32(inputs); | |
| 759 out.add(ByteBuffer.wrap(bytes)); | |
| 760 int inputIndex = 0; | |
| 761 ByteBuffer c1 = multicastqueue.allocate(deflate_size); | |
| 496 | 762 int x = rect.x, y = rect.y, w = 0, h = 0, w0 = 0, h0 = 0; |
| 495 | 763 int span = rect.width; |
| 494 | 764 while (inputIndex < inflate_size) { |
| 495 | 765 deflater.setInput(bytes,inputIndex,span * bytePerPixel); |
| 496 | 766 if (c1.remaining() < span * bytePerPixel || inputIndex >= inflate_size - span * bytePerPixel) { |
| 494 | 767 deflater.deflate(c1,Deflater.FULL_FLUSH); |
| 768 c1.flip(); | |
| 496 | 769 try { |
| 770 writeUpdateRectangleWithHeader(c1,header,c1.remaining(),x+w,y+h,rect.width,h-h0); | |
| 771 } catch (InterruptedException e) { | |
| 772 e.printStackTrace(); | |
| 773 } | |
| 495 | 774 h0 = h; |
| 775 w0 = w; | |
| 776 c1.reset(); | |
| 494 | 777 } else { |
| 496 | 778 deflater.deflate(c1,Deflater.SYNC_FLUSH); |
| 494 | 779 } |
| 495 | 780 w += span; |
| 781 if (w >= rect.width ) { | |
| 782 h++; | |
| 783 w = 0; | |
| 784 w0 = 0; | |
| 785 } | |
| 494 | 786 inputIndex += rect.width * bytePerPixel; |
| 787 } | |
| 788 return; | |
| 789 } | |
| 492 | 790 |
| 495 | 791 private void writeUpdateRectangleWithHeader(ByteBuffer c1, ByteBuffer header, int len2, int x, int y, int w, int h) throws InterruptedException { |
| 494 | 792 LinkedList<ByteBuffer> bufs = new LinkedList<ByteBuffer>(); |
| 793 bufs.add(c1); | |
| 794 deflater.reset(); | |
| 233 | 795 |
| 494 | 796 ByteBuffer blen = multicastqueue.allocate(4); |
| 797 blen.putInt(len2); | |
| 798 blen.flip(); | |
| 799 bufs.addFirst(blen); | |
| 495 | 800 ByteBuffer hdr = multicastqueue.allocate(header.array().length); |
| 801 hdr.put(header.array()); | |
| 802 hdr.putShort(4,(short) x); | |
| 803 hdr.putShort(6,(short) y); | |
| 804 hdr.putShort(8,(short) w); | |
| 805 hdr.putShort(10,(short) h); | |
| 494 | 806 if (checkDelay) { |
| 495 | 807 bufs = createCheckDelayHeader(bufs, hdr); |
| 494 | 808 } else { |
| 495 | 809 bufs.addFirst(hdr); |
|
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810 } |
| 494 | 811 if (addSerialNum) { |
| 812 addSerialNumber(bufs); | |
| 813 } | |
| 814 multicastqueue.waitput(bufs); | |
|
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815 } |
| 124 | 816 |
|
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817 public LinkedList<ByteBuffer> createCheckDelayHeader(LinkedList<ByteBuffer> checkDelay, ByteBuffer header) { |
|
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818 int x = (int) header.getShort(4); |
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819 int y = (int) header.getShort(6); |
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820 int width = (int) header.getShort(8); |
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821 int height = (int) header.getShort(10); |
|
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822 long time = System.currentTimeMillis(); |
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823 checkDelay.addFirst(new CheckDelay(x, y, width, height, time, EncodingType.CHECK_DELAY).getMessage()); |
|
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824 return checkDelay; |
|
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825 } |
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826 |
| 223 | 827 public void setId(short id) { |
| 828 this.id = id; | |
| 829 } | |
| 169 | 830 |
| 223 | 831 public short getId() { |
| 832 return id; | |
| 833 } | |
| 169 | 834 |
| 174 | 835 public void setMyAddress(String myHostName) { |
| 836 this.myAddress = myHostName; | |
| 223 | 837 |
| 174 | 838 } |
| 839 | |
| 840 public void setLeader(boolean leader) { | |
| 841 this.leader = leader; | |
| 842 } | |
| 843 | |
| 844 public boolean isLeader() { | |
| 845 return leader; | |
| 846 } | |
| 847 | |
| 203 | 848 public void setTreeManager(String intf, TreeManagement clients) { |
| 223 | 849 nets.setTreeManager(intf, clients); |
| 174 | 850 } |
| 223 | 851 |
| 203 | 852 public TreeManagement getTreeManager(String intf) { |
|
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853 this.treeManager = nets.getTreeManager(intf); |
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854 this.nodeList = treeManager.getList(); |
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855 return treeManager; |
| 174 | 856 } |
| 857 | |
| 470 | 858 public int getNewNodeId () { |
| 471 | 859 return ++uniqueNodeId; |
| 860 } // 0 is reserved for root | |
| 470 | 861 |
| 174 | 862 /** |
|
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863 * change VNCServer is called when host change. |
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864 * |
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865 * @param vncProxyService |
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866 * @param hostName HostAddress |
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867 * @param x |
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868 * @param y |
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869 * @param width FrameWidth |
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870 * @param height FrameHeight |
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871 * @param scale |
| 351 | 872 * @param newVNCServerId |
| 382 | 873 * @param is |
| 874 * @param os | |
| 174 | 875 */ |
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876 public void changeVNCServer(ViewerInterface vncProxyService, String hostName, int port, int x, int y, int width, int height, int scale, short newVNCServerId, Reader is, Writer os) |
| 325 | 877 throws IOException { |
| 351 | 878 if (newVNCServerId == -1) { |
|
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879 // change to the tree vnc root on other network. |
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880 vncProxyService.changeToDirectConnectedServer(hostName, is, os, x, y, width, height, scale); |
|
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881 return; |
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882 } |
| 342 | 883 // serverChangeの処理 |
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884 vncProxyService.inhelitClients(hostName, newVNCServerId, x, y, width, height, scale); |
| 317 | 885 // after connecting VNC server, rfb send SEND_INIT_DATA command and wakes me up if necessary |
| 322 | 886 // stop reader stop |
| 174 | 887 } |
| 888 | |
| 889 /** | |
| 890 * start accepting children | |
| 891 * run rootFinderListener if necessary | |
| 892 */ | |
| 176 | 893 public void createConnectionAndStart(ViewerInterface v) { |
| 223 | 894 selectPort(ConnectionParams.DEFAULT_VNC_ROOT); |
| 176 | 895 acceptThread = new TreeVncCommandChannelListener(this, getAcceptPort()); |
| 223 | 896 Thread thread = new Thread(acceptThread, "TreeVNC-accept"); |
| 897 thread.start(); | |
| 176 | 898 } |
| 899 | |
| 174 | 900 public TreeVncCommandChannelListener getAcceptThread() { |
| 901 return acceptThread; | |
| 902 } | |
| 903 | |
| 176 | 904 public void setConnectionParam(CreateConnectionParam createConnectionParam) { |
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905 cp = createConnectionParam; |
| 176 | 906 } |
| 907 | |
| 908 public CreateConnectionParam getConnectionParam() { | |
| 909 return cp; | |
| 910 } | |
| 911 | |
|
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912 public boolean hasViewer() { |
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913 return hasViewer; |
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914 } |
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915 |
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916 public void setHasViewer(boolean b) { |
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917 hasViewer = b; |
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918 } |
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919 |
| 223 | 920 public void setShowTree(boolean showTree) { |
| 240 | 921 this.showTreeNode = showTree; |
| 922 } | |
| 923 | |
| 924 public void setCheckDelay(boolean checkDelay) { | |
| 925 this.checkDelay = checkDelay; | |
| 223 | 926 } |
| 194 | 927 |
| 241 | 928 public void setAddSerialNum(boolean addSerialNum) { |
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929 this.addSerialNum = addSerialNum; |
| 241 | 930 } |
| 931 | |
| 235 | 932 public int getNodeNum(int port, String address) { |
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933 int nodeNum = 0; |
| 384 | 934 |
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935 for (Iterator<TreeVNCNode> i = nodeList.iterator(); i.hasNext(); ) { |
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936 TreeVNCNode tvn = (TreeVNCNode) i.next(); |
| 235 | 937 if (port == tvn.port && address.equals(tvn.hostname)) { |
| 938 nodeNum = tvn.treeNum; | |
| 939 return nodeNum; | |
| 940 } | |
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941 } |
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942 return nodeNum; |
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943 } |
| 241 | 944 |
| 257 | 945 public void setFixingSize(boolean fixingSize) { |
| 946 this.fixingSize = fixingSize; | |
| 256 | 947 } |
| 267 | 948 |
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949 public boolean hasParent() { |
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950 return id != -1; |
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951 } |
| 384 | 952 |
| 953 /** | |
| 954 * server change to directed connected server | |
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955 * server maybe on the different network |
| 384 | 956 * so can not in whereToConnect message |
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957 * reuse dynamic connect socket us a new client |
| 384 | 958 * reother server exchange socket when serverChangeRequest with id -1 |
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959 * |
| 384 | 960 * @param previousReader |
| 961 * @param previousWriter | |
| 962 */ | |
| 963 public void exchangeDirectConnectedServer(Reader previousReader, Writer previousWriter) { | |
| 964 String adr = viewer.getRfb().getMyAddress(); | |
|
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965 ConnectionPresenter cp1 = viewer.getConnectionPresenter(); |
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966 int scale = cp1.getRetinaScale(); |
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967 int singleWidth = cp1.getSingleWidth(); |
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968 int singleHeight = cp1.getSingleHeight(); |
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969 int x = cp1.getX(); |
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970 int y = cp1.getY(); |
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971 ScreenChangeRequest scr = new ScreenChangeRequest(adr, ConnectionParams.DEFAULT_VNC_ROOT, (short) -1, x, y, singleWidth, singleHeight, scale); |
| 384 | 972 try { |
| 973 scr.send(previousWriter); | |
| 974 } catch (TransportException e) { | |
| 975 e.printStackTrace(); | |
| 976 return; | |
| 977 } | |
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978 // newClient(previousWriter, previousReader, null); |
| 384 | 979 } |
| 389 | 980 |
| 981 /** | |
| 982 * Requested server is connected. stop old connection, replace old connection parameter such as | |
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983 * context (PROTOCOL) |
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984 * start new connection and send INIT_DATA |
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985 * |
| 389 | 986 * @param workingProtocol |
| 987 * @param connectionPresenter | |
| 988 */ | |
| 989 public synchronized void newVNCConnection(Protocol workingProtocol, ConnectionPresenter connectionPresenter) { | |
| 990 ProtocolContext previousContext = getContext(); | |
| 991 stopReceiverTask(); | |
| 992 setProtocolContext(workingProtocol); | |
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993 this.connectionPresenter = connectionPresenter; |
| 389 | 994 connectionPresenter.viewer.setConnectionPresenter(connectionPresenter); |
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995 connectionPresenter.addModel("ConnectionParamsModel", connectionPresenter.getConnectionParams()); |
| 389 | 996 if (previousContext != null && isTreeManager() && hasParent()) { |
| 997 Reader previousReader = previousContext.getReader(); | |
| 998 Writer previousWriter = previousContext.getWriter(); | |
| 424 | 999 // exchangeDirectConnectedServer(previousReader, previousWriter); |
| 389 | 1000 } |
| 1001 enableChildrenTransmission(); | |
| 1002 printNetworkInterface(); | |
| 476 | 1003 System.out.println("newVNCConenction reconnectingId: " + connectionPresenter.getReconnectingId()); |
| 1004 if (isTreeManager()) { | |
| 1005 sharingId = connectionPresenter.getReconnectingId(); | |
| 1006 } | |
| 389 | 1007 sendDesktopSizeChange(connectionPresenter.getReconnectingId()); |
| 1008 } | |
| 412 | 1009 |
| 1010 public void sendErrorAnnounce(short reconnectingId, String message) { | |
| 1011 LinkedList<ByteBuffer> errorAnnounce = new LinkedList<ByteBuffer>(); | |
| 1012 errorAnnounce.add(new ChildNodeAnnounce(EncodingType.ERROR_ANNOUNCE, message.getBytes(), reconnectingId).getMessage()); | |
| 1013 if (addSerialNum) { | |
| 1014 addSerialNumber(errorAnnounce); | |
| 1015 } | |
| 1016 multicastqueue.put(errorAnnounce); | |
| 1017 } | |
| 441 | 1018 |
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1019 public void setConnectionPresenter(ConnectionPresenter connectionPresenter) { |
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1020 this.connectionPresenter = connectionPresenter; |
| 441 | 1021 } |
| 471 | 1022 |
| 1023 public short getSharingId() { | |
| 1024 return sharingId; | |
| 1025 } | |
| 1026 | |
| 1027 public void setSharingId(short sharingId) { | |
| 1028 this.sharingId = sharingId; | |
| 1029 } | |
| 1030 | |
| 240 | 1031 } |