Mercurial > hg > Applications > TightVNC_orginal
annotate src/main/java/com/glavsoft/rfb/protocol/SenderTask.java @ 52:472a9bcacb21 draft default tip
TightVNC 2.7.1.0
author | you@cr.ie.u-ryukyu.ac.jp |
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date | Wed, 07 Aug 2013 19:01:17 +0900 |
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52 | 1 // Copyright (C) 2010, 2011, 2012, 2013 GlavSoft LLC. |
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2 // All rights reserved. |
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3 // |
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4 //------------------------------------------------------------------------- |
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5 // This file is part of the TightVNC software. Please visit our Web site: |
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6 // |
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7 // http://www.tightvnc.com/ |
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8 // |
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9 // This program is free software; you can redistribute it and/or modify |
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10 // it under the terms of the GNU General Public License as published by |
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11 // the Free Software Foundation; either version 2 of the License, or |
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12 // (at your option) any later version. |
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13 // |
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14 // This program is distributed in the hope that it will be useful, |
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15 // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 // GNU General Public License for more details. |
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18 // |
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19 // You should have received a copy of the GNU General Public License along |
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20 // with this program; if not, write to the Free Software Foundation, Inc., |
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21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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22 //------------------------------------------------------------------------- |
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23 // |
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24 |
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25 package com.glavsoft.rfb.protocol; |
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26 |
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27 import com.glavsoft.exceptions.TransportException; |
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28 import com.glavsoft.rfb.client.ClientToServerMessage; |
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29 import com.glavsoft.transport.Writer; |
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30 |
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31 import java.io.PrintWriter; |
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32 import java.io.StringWriter; |
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33 import java.util.logging.Logger; |
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34 |
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35 public class SenderTask implements Runnable { |
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36 |
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37 private final MessageQueue queue; |
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38 private final Writer writer; |
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39 private final ProtocolContext protocolContext; |
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40 private volatile boolean isRunning = false; |
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41 |
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42 /** |
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43 * Create sender task |
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44 * Task runs as thread, receive messages from queue and sends them to writer. |
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45 * When no messages appears in queue longer than timeout period, sends FramebufferUpdate |
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46 * request |
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47 * @param messageQueue queue to poll messages |
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48 * @param writer writer to send messages out |
52 | 49 * @param protocolContext protocol |
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50 */ |
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51 public SenderTask(MessageQueue messageQueue, Writer writer, ProtocolContext protocolContext) { |
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52 this.queue = messageQueue; |
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53 this.writer = writer; |
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54 this.protocolContext = protocolContext; |
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55 } |
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56 |
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57 @Override |
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58 public void run() { |
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59 isRunning = true; |
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60 while (isRunning) { |
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61 ClientToServerMessage message; |
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62 try { |
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63 message = queue.get(); |
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64 if (message != null) { |
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65 message.send(writer); |
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66 } |
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67 } catch (InterruptedException e) { |
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68 // nop |
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69 } catch (TransportException e) { |
52 | 70 Logger.getLogger(getClass().getName()).severe("Close session: " + e.getMessage()); |
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71 if (isRunning) { |
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72 protocolContext.cleanUpSession("Connection closed"); |
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73 } |
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74 stopTask(); |
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75 } catch (Throwable te) { |
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76 StringWriter sw = new StringWriter(); |
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77 PrintWriter pw = new PrintWriter(sw); |
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78 te.printStackTrace(pw); |
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79 if (isRunning) { |
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80 protocolContext.cleanUpSession(te.getMessage() + "\n" + sw.toString()); |
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81 } |
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82 stopTask(); |
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83 } |
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84 } |
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85 } |
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86 |
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87 public void stopTask() { |
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88 isRunning = false; |
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89 } |
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90 |
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91 } |