Mercurial > hg > Applications > TreeVNC
annotate src/main/java/jp/ac/u_ryukyu/treevnc/MyRfbProto.java @ 179:c1b91dd27a13
on going ...
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 23 Jun 2014 10:40:32 +0900 |
parents | 34b7558aeffa |
children | 9c02b5a72bf9 |
rev | line source |
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32 | 1 package jp.ac.u_ryukyu.treevnc; |
28 | 2 |
3 import java.io.IOException; | |
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4 import java.net.BindException; |
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5 import java.net.ServerSocket; |
28 | 6 import java.net.Socket; |
174 | 7 import java.net.UnknownHostException; |
28 | 8 import java.nio.ByteBuffer; |
109 | 9 import java.nio.ByteOrder; |
28 | 10 import java.util.LinkedList; |
11 import java.util.concurrent.atomic.AtomicInteger; | |
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12 import java.util.zip.DataFormatException; |
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13 import java.util.zip.Deflater; |
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14 import java.util.zip.Inflater; |
150 | 15 |
28 | 16 import jp.ac.u_ryukyu.treevnc.server.RequestScreenThread; |
174 | 17 import jp.ac.u_ryukyu.treevnc.server.TreeManagement; |
18 import jp.ac.u_ryukyu.treevnc.server.TreeRootFinderListener; | |
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 |
120 | 31 public abstract class MyRfbProto { |
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32 final static int FramebufferUpdateRequest = 3; |
28 | 33 final static int CheckDelay = 11; |
103 | 34 protected final static int FramebufferUpdate = 0; |
153 | 35 protected ProtocolContext context; |
36 private int clients = 0; | |
98 | 37 public MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MulticastQueue<LinkedList<ByteBuffer>>(); |
28 | 38 private RequestScreenThread rThread; |
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39 public int acceptPort = 0; |
174 | 40 private String myAddress; |
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41 protected boolean readyReconnect = false; |
98 | 42 private boolean cuiVersion; |
107 | 43 private long counter = 0; // packet serial number |
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44 public ServerSocket servSock; |
123 | 45 private boolean permitChangeScreen = true; |
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46 private static final int INFLATE_BUFSIZE = 1024 * 100; |
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47 |
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48 private Inflater inflater = new Inflater(); |
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49 private Deflater deflater = new Deflater(); |
174 | 50 ViewerInterface viewer; |
169 | 51 private short id; |
174 | 52 private boolean leader; |
179 | 53 public TreeManagement treeManager; |
174 | 54 private TreeVncCommandChannelListener acceptThread; |
177 | 55 private boolean firstTime = true; |
174 | 56 private TreeRootFinderListener getCast; |
176 | 57 private CreateConnectionParam cp; |
178
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58 private boolean hasViewer = false; |
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59 |
107 | 60 |
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61 public MyRfbProto() { |
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62 rThread = new RequestScreenThread(this); |
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63 } |
107 | 64 |
120 | 65 abstract public boolean isRoot() ; |
28 | 66 |
164 | 67 public ProtocolContext getContext() { |
68 return context; | |
69 } | |
70 | |
130 | 71 /** |
72 * handle new client accept | |
73 * it also handle TreeVNC Command | |
74 * @param acceptThread | |
75 * @param newCli | |
76 * @param os | |
77 * @param is | |
78 * @throws IOException | |
79 * @throws TransportException | |
80 */ | |
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81 public void newClient(final Socket newCli,final Writer os, final Reader is) { |
124 | 82 |
28 | 83 final int myId = clients; |
84 final MulticastQueue.Client<LinkedList<ByteBuffer>> c = multicastqueue.newClient(); | |
85 final AtomicInteger writerRunning = new AtomicInteger(); | |
86 writerRunning.set(1); | |
87 /** | |
88 * Timeout thread. If a client is suspended, it has top of queue | |
89 * indefinitely, which caused memory overflow. After the timeout, we | |
90 * poll the queue and discard it. Start long wait if writer is running. | |
91 */ | |
92 final Runnable timer = new Runnable() { | |
93 public void run() { | |
94 int count = 0; | |
95 for (;;) { | |
96 long timeout = 50000 / 8; | |
97 try { | |
98 synchronized (this) { | |
99 int state, flag; | |
100 writerRunning.set(0); | |
101 wait(timeout); | |
102 flag = 0; | |
103 while ((state = writerRunning.get()) == 0) { | |
104 c.poll(); // discard, should be timeout | |
105 count++; | |
106 if (flag == 0) { | |
107 System.out.println("Discarding " + myId | |
108 + " count=" + count); | |
109 flag = 1; | |
110 } | |
111 wait(10); // if this is too short, writer cannot | |
112 // take the poll, if this is too | |
113 // long, memory will overflow... | |
114 } | |
115 if (flag == 1) | |
116 System.out.println("Resuming " + myId | |
117 + " count=" + count); | |
118 if (state != 1) { | |
119 System.out.println("Client died " + myId); | |
120 break; | |
121 } | |
122 } | |
123 } catch (InterruptedException e) { | |
124 } | |
125 } | |
126 } | |
127 }; | |
88 | 128 new Thread(timer, "timer-discard-multicastqueue").start(); |
28 | 129 /** |
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130 * handle command from lower node |
28 | 131 */ |
132 final Runnable reader = new Runnable() { | |
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133 |
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134 public void run() { |
28 | 135 for (;;) { |
136 try { | |
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137 final byte b[] = new byte[4096]; |
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138 final int c = is.readByte(b); |
28 | 139 if (c <= 0) |
140 throw new IOException(); | |
107 | 141 if (isRoot()) { |
142 if (b[0] == ClientToServerMessage.SERVER_CHANGE_REQUEST) { | |
143 if (permitChangeScreen()) { | |
109 | 144 ByteBuffer buf = ByteBuffer.wrap(b); |
145 buf.order(ByteOrder.BIG_ENDIAN); | |
170 | 146 short id = buf.getShort(2); |
109 | 147 int length = buf.getInt(4); |
107 | 148 if (length == 0) |
149 continue; | |
150 String newHostName = new String(b, 8, length); | |
111 | 151 System.out.println("Root server change request :" + newHostName); |
107 | 152 // please remove these numbers. |
153 if (viewer != null) { | |
177 | 154 changeVNCServer(viewer, newHostName, 3200, 1980, id); |
107 | 155 } |
156 } else { | |
157 continue; | |
158 } | |
159 } | |
110 | 160 } else if (b[0] == ClientToServerMessage.SERVER_CHANGE_REQUEST) { |
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161 ClientToServerMessage sc = new ClientToServerMessage() { |
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162 @Override |
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163 public void send(Writer writer) |
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164 throws TransportException { |
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165 writer.write(b,0,c); |
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166 } |
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167 }; |
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168 context.sendMessage(sc); |
107 | 169 } |
28 | 170 // System.out.println("client read "+c); |
89 | 171 } catch (Exception e) { |
28 | 172 try { |
173 writerRunning.set(2); | |
174 os.close(); | |
175 is.close(); | |
36 | 176 break; |
28 | 177 } catch (IOException e1) { |
178 } catch (TransportException e1) { | |
179 e1.printStackTrace(); | |
180 } | |
181 return; | |
182 } | |
183 } | |
184 } | |
107 | 185 |
28 | 186 }; |
187 /** | |
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188 * send packets to a client (one thread for each client ) |
28 | 189 */ |
190 Runnable sender = new Runnable() { | |
191 public void run() { | |
192 writerRunning.set(1); | |
193 try { | |
194 requestThreadNotify(); | |
195 | |
88 | 196 // after this, we discard upward packet. |
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197 new Thread(reader, "upward-packet-processing").start(); |
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198 |
28 | 199 for (;;) { |
200 LinkedList<ByteBuffer> bufs = c.poll(); | |
201 int inputIndex = 0; | |
202 ByteBuffer header = bufs.get(inputIndex); | |
203 if (header == null) | |
204 continue; | |
205 else if (header.get(0) == CheckDelay) { | |
206 writeToClient(os, bufs, inputIndex); | |
207 continue; | |
208 } else if (header.get(0) == FramebufferUpdate) { | |
63 | 209 //System.out.println("client "+ myId); |
28 | 210 } |
211 /* | |
212 * if(i%20==0){ sendDataCheckDelay(); } i++; | |
213 */ | |
214 writeToClient(os, bufs, inputIndex); | |
215 writerRunning.set(1); // yes my client is awaking. | |
216 } | |
89 | 217 } catch (Exception e) { |
28 | 218 try { |
219 writerRunning.set(2); | |
220 os.close(); | |
221 } catch (IOException e1) { | |
160 | 222 System.out.println("root writer close faild :" + e1); |
28 | 223 } |
160 | 224 System.out.println("root writer faild :" + e); |
28 | 225 /* if socket closed cliList.remove(newCli); */ |
226 } | |
227 } | |
228 | |
229 public void writeToClient(final Writer os, | |
230 LinkedList<ByteBuffer> bufs, int inputIndex) | |
231 throws TransportException { | |
232 while (inputIndex < bufs.size()) { | |
233 ByteBuffer b = bufs.get(inputIndex++); | |
234 os.write(b.array(), b.position(), b.limit()); | |
235 } | |
236 os.flush(); | |
74 | 237 bufs = null; |
238 multicastqueue.heapAvailable(); | |
28 | 239 } |
240 }; | |
241 clients++; | |
88 | 242 new Thread(sender, "writer-to-lower-node").start(); |
28 | 243 |
244 } | |
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245 |
28 | 246 |
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247 |
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248 public boolean permitChangeScreen() { |
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249 return permitChangeScreen; |
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250 } |
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251 |
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252 |
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253 public void setPermitChangeScreen(boolean v) { |
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254 permitChangeScreen = v; |
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255 } |
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256 |
88 | 257 public void requestThreadNotify() { |
28 | 258 rThread.reStart(); |
259 } | |
260 | |
261 | |
262 public void setProtocolContext(Protocol workingProtocol) { | |
263 context = workingProtocol; | |
264 } | |
29 | 265 |
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266 public Socket accept() throws IOException { |
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267 return servSock.accept(); |
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268 } |
31 | 269 |
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270 public int selectPort(int p) { |
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271 int port = p; |
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272 while (true) { |
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273 try { |
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274 servSock = new ServerSocket(port); |
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275 acceptPort = port; |
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276 break; |
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277 } catch (BindException e) { |
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278 port++; |
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279 continue; |
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280 } catch (IOException e) { |
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281 |
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282 } |
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283 } |
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284 System.out.println("accept port = " + port); |
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285 return port; |
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286 } |
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287 |
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288 |
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289 |
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290 public void writeFramebufferUpdateRequest(int x, int y, int w, int h, |
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291 boolean incremental) throws TransportException { |
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292 byte[] b = new byte[10]; |
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293 |
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294 b[0] = (byte) FramebufferUpdateRequest; // 3 is FrameBufferUpdateRequest |
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295 b[1] = (byte) (incremental ? 1 : 0); |
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296 b[2] = (byte) ((x >> 8) & 0xff); |
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297 b[3] = (byte) (x & 0xff); |
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298 b[4] = (byte) ((y >> 8) & 0xff); |
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299 b[5] = (byte) (y & 0xff); |
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300 b[6] = (byte) ((w >> 8) & 0xff); |
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301 b[7] = (byte) (w & 0xff); |
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302 b[8] = (byte) ((h >> 8) & 0xff); |
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303 b[9] = (byte) (h & 0xff); |
35 | 304 } |
305 | |
153 | 306 public void setViewer(ViewerInterface v) { |
174 | 307 viewer = v; |
36 | 308 } |
309 | |
153 | 310 public ViewerInterface getViewer() { |
174 | 311 return viewer; |
65 | 312 } |
43 | 313 |
314 public void setTerminationType(boolean setType) { | |
315 /*nop*/ | |
316 } | |
317 | |
318 public boolean getTerminationType() { | |
319 /*nop*/ | |
320 return true; | |
321 } | |
45 | 322 |
134
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323 public void close() { |
102
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324 // none |
52 | 325 } |
45 | 326 |
60 | 327 public int getAcceptPort() { |
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328 return acceptPort; |
60 | 329 } |
330 | |
61
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331 public boolean getReadyReconnect() { |
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332 return readyReconnect; |
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333 } |
65 | 334 |
335 | |
336 public boolean getCuiVersion() { | |
337 return cuiVersion; | |
61
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338 } |
65 | 339 |
340 public void setCuiVersion(boolean flag) { | |
341 cuiVersion = flag; | |
342 } | |
66 | 343 |
344 public void readCheckDelay(Reader reader) throws TransportException { | |
345 | |
346 } | |
134
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347 |
94
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348 public synchronized void setReadyReconnect(boolean ready) { |
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349 readyReconnect = ready; |
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350 if (ready) { |
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351 notifyAll(); |
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352 } |
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353 } |
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354 |
174 | 355 public synchronized void waitForReady(ViewerInterface vncProxyService) throws InterruptedException { |
94
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356 while (!readyReconnect) { |
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357 wait(); |
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358 } |
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359 } |
96 | 360 |
361 | |
170 | 362 public void sendDesktopSizeChange(short id) { |
96 | 363 LinkedList<ByteBuffer> desktopSize = new LinkedList<ByteBuffer>(); |
97 | 364 int width = context.getFbWidth(); |
365 int height = context.getFbHeight(); | |
169 | 366 desktopSize.add(new UpdateRectangleMessage(width, height, EncodingType.INIT_DATA, context.getInitData(),id).getMessage()); |
99 | 367 addSerialNumber(desktopSize); |
96 | 368 multicastqueue.put(desktopSize); |
369 } | |
98 | 370 |
371 | |
372 public void addSerialNumber(LinkedList<ByteBuffer> bufs) { | |
373 ByteBuffer serialNum = multicastqueue.allocate(8); | |
374 serialNum.putLong(counter++); | |
375 serialNum.flip(); | |
376 bufs.addFirst(serialNum); | |
377 } | |
102
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378 |
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379 |
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380 public void resetDecoder() { |
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381 context.resetDecoder(); |
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382 } |
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383 |
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384 public void stopReceiverTask() { |
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385 if (context!=null) |
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386 context.cleanUpSession(null); |
118
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387 // cleanup zlib decoder for new VNCServer |
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388 if (isRoot()) |
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389 inflater = new Inflater(); |
102
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390 } |
113
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391 |
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392 public String getMyAddress() { |
174 | 393 return myAddress; |
113
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394 } |
118
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395 |
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396 /** |
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397 * gzip byte arrays |
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398 * |
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399 * @param deflater |
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400 * @param inputs |
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401 * byte data[] |
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402 * @param inputIndex |
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403 * @param outputs |
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404 * byte data[] |
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405 * @return byte length in last byte array |
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406 * @throws IOException |
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407 */ |
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408 public int zip(Deflater deflater, LinkedList<ByteBuffer> inputs, |
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409 int inputIndex, LinkedList<ByteBuffer> outputs) throws IOException { |
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410 int len = 0; |
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411 ByteBuffer c1 = multicastqueue.allocate(INFLATE_BUFSIZE); |
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412 while (inputIndex < inputs.size()) { |
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413 ByteBuffer b1 = inputs.get(inputIndex++); |
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414 deflater.setInput(b1.array(), b1.position(), b1.remaining()); |
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415 /** |
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416 * If we finish() stream and reset() it, Deflater start new gzip |
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417 * stream, this makes continuous zlib reader unhappy. if we remove |
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418 * finish(), Deflater.deflate() never flushes its output. The |
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419 * original zlib deflate has flush flag. I'm pretty sure this a kind |
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420 * of bug of Java library. |
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421 */ |
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422 if (inputIndex == inputs.size()) |
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423 deflater.finish(); |
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424 int len1 = 0; |
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425 do { |
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426 len1 = deflater.deflate(c1.array(), c1.position(), |
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427 c1.remaining()); |
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428 if (len1 > 0) { |
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429 len += len1; |
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430 c1.position(c1.position() + len1); |
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431 if (c1.remaining() == 0) { |
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432 c1.flip(); |
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433 outputs.addLast(c1); |
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434 c1 = multicastqueue.allocate(INFLATE_BUFSIZE); |
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435 } |
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436 } |
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437 } while (len1 > 0 || !deflater.needsInput()); // &&!deflater.finished()); |
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438 } |
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439 if (c1.position() != 0) { |
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440 c1.flip(); |
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441 outputs.addLast(c1); |
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442 } |
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443 deflater.reset(); |
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444 return len; |
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445 } |
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446 |
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447 /** |
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448 * gunzip byte arrays |
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449 * |
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450 * @param inflater |
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451 * @param inputs |
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452 * byte data[] |
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453 * @param outputs |
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454 * byte data[] |
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455 * @return number of total bytes |
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456 * @throws IOException |
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457 */ |
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458 public int unzip(Inflater inflater, LinkedList<ByteBuffer> inputs, |
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459 int inputIndex, LinkedList<ByteBuffer> outputs, int bufSize) |
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460 throws DataFormatException { |
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461 int len = 0; |
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462 ByteBuffer buf = multicastqueue.allocate(bufSize); |
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463 while (inputIndex < inputs.size()) { |
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464 ByteBuffer input = inputs.get(inputIndex++); |
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465 inflater.setInput(input.array(), input.position(), input.limit()); |
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466 // if (inputIndex==inputs.size()) if inflater/deflater has symmetry, |
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467 // we need this |
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468 // inflater.end(); but this won't work |
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469 do { |
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470 int len0 = inflater.inflate(buf.array(), buf.position(), |
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471 buf.remaining()); |
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472 if (len0 > 0) { |
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473 buf.position(buf.position() + len0); |
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474 len += len0; |
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475 if (buf.remaining() == 0) { |
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476 buf.flip(); |
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477 outputs.addLast(buf); |
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478 buf = multicastqueue.allocate(bufSize); |
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479 } |
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480 } |
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481 } while (!inflater.needsInput()); |
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482 } |
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483 if (buf.position() != 0) { |
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484 buf.flip(); |
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485 outputs.addLast(buf); |
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486 } |
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487 return len; |
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488 } |
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489 |
135
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490 /** |
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491 * read FrameBuffferUpdate. If it is ZLE, make it ZLEE which is self contained compressed packet. |
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492 * put the packet to the multicastqueue. Then normal rendering engine read the same stream using is.reset(). |
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493 * @param dataLen |
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494 * @param reader |
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495 * @throws TransportException |
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496 */ |
118
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497 public void readSendData(int dataLen, Reader reader) |
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498 throws TransportException { |
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499 LinkedList<ByteBuffer> bufs = new LinkedList<ByteBuffer>(); |
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500 ByteBuffer header = multicastqueue.allocate(16); |
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501 ByteBuffer serial = multicastqueue.allocate(8); |
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502 if (!isRoot()) { |
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503 reader.mark(dataLen+8); // +8 is serialnum |
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504 reader.readBytes(serial.array(),0,8); |
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505 serial.limit(8); |
120 | 506 } |
118
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507 reader.readBytes(header.array(), 0, 16); |
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508 header.limit(16); |
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509 if (header.get(0) == FramebufferUpdate) { |
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510 int encoding = header.getInt(12); |
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511 if (encoding == EncodingType.ZRLE.getId() |
120 | 512 || encoding == EncodingType.ZLIB.getId()) { // ZRLEE is already compressed |
118
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513 ByteBuffer len = multicastqueue.allocate(4); |
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514 reader.readBytes(len.array(), 0, 4); |
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515 len.limit(4); |
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516 ByteBuffer inputData = multicastqueue.allocate(dataLen - 20); |
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517 reader.readBytes(inputData.array(), 0, inputData.capacity()); |
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518 inputData.limit(dataLen - 20); |
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519 LinkedList<ByteBuffer> inputs = new LinkedList<ByteBuffer>(); |
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520 inputs.add(inputData); |
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521 |
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522 header.putInt(12, EncodingType.ZRLEE.getId()); // means |
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523 // recompress |
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524 // every time |
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525 // using new Deflecter every time is incompatible with the |
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526 // protocol, clients have to be modified. |
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527 Deflater nDeflater = deflater; // new Deflater(); |
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528 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); |
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529 try { |
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530 unzip(inflater, inputs, 0, out, INFLATE_BUFSIZE); |
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531 // dump32(inputs); |
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532 int len2 = zip(nDeflater, out, 0, bufs); |
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533 ByteBuffer blen = multicastqueue.allocate(4); |
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534 blen.putInt(len2); |
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535 blen.flip(); |
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536 bufs.addFirst(blen); |
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537 bufs.addFirst(header); |
146 | 538 addSerialNumber(bufs); |
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539 multicastqueue.put(bufs); |
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540 if (!isRoot()) reader.reset(); |
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541 } catch (DataFormatException e) { |
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542 throw new TransportException(e); |
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543 } catch (IOException e) { |
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544 throw new TransportException(e); |
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545 } |
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546 return; |
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547 } |
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548 bufs.add(header); |
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549 if (dataLen > 16) { |
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550 ByteBuffer b = multicastqueue.allocate(dataLen - 16); |
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551 reader.readBytes(b.array(), 0, dataLen - 16); |
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552 b.limit(dataLen - 16); |
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553 bufs.add(b); |
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554 } |
120 | 555 this.addSerialNumber(bufs); |
118
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556 multicastqueue.put(bufs); |
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557 return; |
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558 } |
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559 // It may be compressed. We can inflate here to avoid repeating clients |
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560 // decompressing here, |
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561 // but it may generate too many large data. It is better to do it in |
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562 // each client. |
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563 // But we have do inflation for all input data, so we have to do it |
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564 // here. |
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565 } |
124 | 566 |
145
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567 public abstract void addHostToSelectionPanel(int port, String hostname,String myHostName) ; |
143 | 568 |
144 | 569 public void createRootSelectionPanel(CreateConnectionParam createConnectionParam) { |
143 | 570 |
571 } | |
572 | |
169 | 573 public void setId(short id) { |
574 this.id = id; | |
575 } | |
576 | |
577 public short getId() { | |
578 return id; | |
579 } | |
580 | |
174 | 581 public void setMyAddress(String myHostName) { |
582 this.myAddress = myHostName; | |
583 | |
584 } | |
585 | |
586 public void setLeader(boolean leader) { | |
587 this.leader = leader; | |
588 } | |
589 | |
590 public boolean isLeader() { | |
591 return leader; | |
592 } | |
593 | |
594 public void setTreeManager(TreeManagement clients) { | |
595 treeManager = clients; | |
596 } | |
597 | |
598 public TreeManagement getTreeManger() { | |
599 return treeManager; | |
600 } | |
601 | |
602 /** | |
603 * chnageVNCServer is called when host change. | |
604 * | |
605 * @param vncProxyService | |
606 * @param hostName | |
607 * HostAddress | |
608 * @param width | |
609 * FrameWidth | |
610 * @param height | |
611 * FrameHeight | |
612 * @param id | |
613 * @throws InterruptedException | |
614 */ | |
615 public void changeVNCServer(ViewerInterface vncProxyService, String hostName, int width, int height, short id) | |
616 throws UnknownHostException, IOException, InterruptedException { | |
617 // stop reader stop | |
618 stopReceiverTask(); | |
619 vncProxyService.inhelitClients(vncProxyService, hostName); | |
620 orderRecconection(vncProxyService, hostName, id); | |
621 } | |
622 | |
623 public void orderRecconection(ViewerInterface vncProxyService, String hostName, short id) throws UnknownHostException, IOException, InterruptedException { | |
624 waitForReady(vncProxyService); | |
625 sendDesktopSizeChange(id); | |
626 } | |
627 | |
628 /** | |
629 * start accepting children | |
630 * run rootFinderListener if necessary | |
631 */ | |
176 | 632 public void createConnectionAndStart(ViewerInterface v) { |
174 | 633 selectPort(ConnectionParams.DEFAULT_VNC_ROOT); |
634 if (treeManager!=null) { | |
635 treeManager.getList().getFirst().setPort(getAcceptPort()); | |
636 } | |
176 | 637 startTreeVncCommandListener(); |
638 if(isRoot() && firstTime) { | |
639 getCast = new TreeRootFinderListener(v); | |
640 Thread thread = new Thread(getCast, "tree-root-find-listener"); | |
174 | 641 thread.start(); |
642 firstTime = false; | |
643 } | |
644 } | |
645 | |
176 | 646 public void startTreeVncCommandListener() { |
647 acceptThread = new TreeVncCommandChannelListener(this, getAcceptPort()); | |
648 Thread thread = new Thread(acceptThread, "TreeVNC-accept"); | |
649 thread.start(); | |
650 } | |
651 | |
174 | 652 public TreeVncCommandChannelListener getAcceptThread() { |
653 return acceptThread; | |
654 } | |
655 | |
176 | 656 public void setConnectionParam(CreateConnectionParam createConnectionParam) { |
657 cp = createConnectionParam; | |
658 } | |
659 | |
660 public CreateConnectionParam getConnectionParam() { | |
661 return cp; | |
662 } | |
663 | |
178
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664 public boolean hasViewer() { |
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665 return hasViewer; |
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666 } |
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667 |
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668 public void setHasViewer(boolean b) { |
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669 hasViewer = b; |
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670 } |
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671 |
164 | 672 |
28 | 673 } |