| 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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| 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation (qt-info@nokia.com)
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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 | ** $QT_BEGIN_LICENSE:BSD$
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| 10 | ** You may use this file under the terms of the BSD license as follows:
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| 11 | **
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| 12 | ** "Redistribution and use in source and binary forms, with or without
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| 13 | ** modification, are permitted provided that the following conditions are
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| 14 | ** met:
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| 15 | ** * Redistributions of source code must retain the above copyright
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| 16 | ** notice, this list of conditions and the following disclaimer.
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| 17 | ** * Redistributions in binary form must reproduce the above copyright
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| 18 | ** notice, this list of conditions and the following disclaimer in
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| 19 | ** the documentation and/or other materials provided with the
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| 20 | ** distribution.
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| 21 | ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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| 22 | ** the names of its contributors may be used to endorse or promote
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| 23 | ** products derived from this software without specific prior written
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| 24 | ** permission.
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| 25 | **
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| 26 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 27 | ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 28 | ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| 29 | ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| 30 | ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 31 | ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 32 | ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 33 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 34 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 35 | ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 36 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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| 37 | ** $QT_END_LICENSE$
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| 38 | **
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| 39 | ****************************************************************************/
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| 40 |
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| 41 | #include <QtGui>
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| 42 | #include <QtNetwork>
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| 43 |
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| 44 | #include <stdlib.h>
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| 45 |
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| 46 | #include "server.h"
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| 47 | #include <qlocalserver.h>
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| 48 | #include <qlocalsocket.h>
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| 49 |
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| 50 | Server::Server(QWidget *parent)
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| 51 | : QDialog(parent)
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| 52 | {
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| 53 | statusLabel = new QLabel;
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| 54 | quitButton = new QPushButton(tr("Quit"));
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| 55 | quitButton->setAutoDefault(false);
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| 56 |
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| 57 | server = new QLocalServer(this);
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| 58 | if (!server->listen("fortune")) {
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| 59 | QMessageBox::critical(this, tr("Fortune Server"),
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| 60 | tr("Unable to start the server: %1.")
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| 61 | .arg(server->errorString()));
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| 62 | close();
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| 63 | return;
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| 64 | }
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| 65 |
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| 66 | statusLabel->setText(tr("The server is running.\n"
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| 67 | "Run the Fortune Client example now."));
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| 68 |
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| 69 | fortunes << tr("You've been leading a dog's life. Stay off the furniture.")
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| 70 | << tr("You've got to think about tomorrow.")
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| 71 | << tr("You will be surprised by a loud noise.")
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| 72 | << tr("You will feel hungry again in another hour.")
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| 73 | << tr("You might have mail.")
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| 74 | << tr("You cannot kill time without injuring eternity.")
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| 75 | << tr("Computers are not intelligent. They only think they are.");
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| 76 |
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| 77 | connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
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| 78 | connect(server, SIGNAL(newConnection()), this, SLOT(sendFortune()));
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| 79 |
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| 80 | QHBoxLayout *buttonLayout = new QHBoxLayout;
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| 81 | buttonLayout->addStretch(1);
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| 82 | buttonLayout->addWidget(quitButton);
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| 83 | buttonLayout->addStretch(1);
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| 84 |
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| 85 | QVBoxLayout *mainLayout = new QVBoxLayout;
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| 86 | mainLayout->addWidget(statusLabel);
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| 87 | mainLayout->addLayout(buttonLayout);
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| 88 | setLayout(mainLayout);
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| 89 |
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| 90 | setWindowTitle(tr("Fortune Server"));
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| 91 | }
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| 92 |
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| 93 | void Server::sendFortune()
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| 94 | {
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| 95 | QByteArray block;
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| 96 | QDataStream out(&block, QIODevice::WriteOnly);
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| 97 | out.setVersion(QDataStream::Qt_4_0);
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| 98 | out << (quint16)0;
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| 99 | out << fortunes.at(qrand() % fortunes.size());
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| 100 | out.device()->seek(0);
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| 101 | out << (quint16)(block.size() - sizeof(quint16));
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| 102 |
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| 103 | QLocalSocket *clientConnection = server->nextPendingConnection();
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| 104 | connect(clientConnection, SIGNAL(disconnected()),
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| 105 | clientConnection, SLOT(deleteLater()));
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| 106 |
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| 107 | clientConnection->write(block);
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| 108 | clientConnection->flush();
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| 109 | clientConnection->disconnectFromServer();
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| 110 | }
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