1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** All rights reserved.
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5 | ** Contact: Nokia Corporation ([email protected])
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6 | **
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7 | ** This file is part of the examples of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:LGPL$
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10 | ** Commercial Usage
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11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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12 | ** accordance with the Qt Commercial License Agreement provided with the
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13 | ** Software or, alternatively, in accordance with the terms contained in
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14 | ** a written agreement between you and Nokia.
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15 | **
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16 | ** GNU Lesser General Public License Usage
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17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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18 | ** General Public License version 2.1 as published by the Free Software
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19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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20 | ** packaging of this file. Please review the following information to
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21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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23 | **
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24 | ** In addition, as a special exception, Nokia gives you certain additional
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25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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27 | **
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28 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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30 | ** General Public License version 3.0 as published by the Free Software
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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32 | ** packaging of this file. Please review the following information to
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33 | ** ensure the GNU General Public License version 3.0 requirements will be
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34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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35 | **
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36 | ** If you have questions regarding the use of this file, please contact
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37 | ** Nokia at [email protected].
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38 | ** $QT_END_LICENSE$
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39 | **
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40 | ****************************************************************************/
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41 |
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42 | #include <QtGui>
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43 | #include <QtNetwork>
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44 |
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45 | #include <stdlib.h>
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46 |
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47 | #include "server.h"
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48 | #include <qlocalserver.h>
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49 | #include <qlocalsocket.h>
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50 |
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51 | Server::Server(QWidget *parent)
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52 | : QDialog(parent)
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53 | {
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54 | statusLabel = new QLabel;
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55 | quitButton = new QPushButton(tr("Quit"));
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56 | quitButton->setAutoDefault(false);
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57 |
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58 | server = new QLocalServer(this);
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59 | if (!server->listen("fortune")) {
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60 | QMessageBox::critical(this, tr("Fortune Server"),
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61 | tr("Unable to start the server: %1.")
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62 | .arg(server->errorString()));
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63 | close();
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64 | return;
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65 | }
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66 |
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67 | statusLabel->setText(tr("The server is running.\n"
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68 | "Run the Fortune Client example now."));
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69 |
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70 | fortunes << tr("You've been leading a dog's life. Stay off the furniture.")
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71 | << tr("You've got to think about tomorrow.")
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72 | << tr("You will be surprised by a loud noise.")
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73 | << tr("You will feel hungry again in another hour.")
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74 | << tr("You might have mail.")
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75 | << tr("You cannot kill time without injuring eternity.")
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76 | << tr("Computers are not intelligent. They only think they are.");
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77 |
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78 | connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
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79 | connect(server, SIGNAL(newConnection()), this, SLOT(sendFortune()));
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80 |
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81 | QHBoxLayout *buttonLayout = new QHBoxLayout;
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82 | buttonLayout->addStretch(1);
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83 | buttonLayout->addWidget(quitButton);
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84 | buttonLayout->addStretch(1);
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85 |
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86 | QVBoxLayout *mainLayout = new QVBoxLayout;
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87 | mainLayout->addWidget(statusLabel);
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88 | mainLayout->addLayout(buttonLayout);
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89 | setLayout(mainLayout);
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90 |
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91 | setWindowTitle(tr("Fortune Server"));
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92 | }
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93 |
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94 | void Server::sendFortune()
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95 | {
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96 | QByteArray block;
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97 | QDataStream out(&block, QIODevice::WriteOnly);
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98 | out.setVersion(QDataStream::Qt_4_0);
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99 | out << (quint16)0;
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100 | out << fortunes.at(qrand() % fortunes.size());
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101 | out.device()->seek(0);
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102 | out << (quint16)(block.size() - sizeof(quint16));
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103 |
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104 | QLocalSocket *clientConnection = server->nextPendingConnection();
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105 | connect(clientConnection, SIGNAL(disconnected()),
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106 | clientConnection, SLOT(deleteLater()));
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107 |
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108 | clientConnection->write(block);
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109 | clientConnection->flush();
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110 | clientConnection->disconnectFromServer();
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111 | }
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