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Diffstat (limited to 'examples/ipc/localfortuneserver/server.cpp')
| -rw-r--r-- | examples/ipc/localfortuneserver/server.cpp | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/examples/ipc/localfortuneserver/server.cpp b/examples/ipc/localfortuneserver/server.cpp new file mode 100644 index 0000000000..88784d440e --- /dev/null +++ b/examples/ipc/localfortuneserver/server.cpp @@ -0,0 +1,110 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include <QtNetwork> + +#include <stdlib.h> + +#include "server.h" +#include <qlocalserver.h> +#include <qlocalsocket.h> + +Server::Server(QWidget *parent) + : QDialog(parent) +{ + statusLabel = new QLabel; + quitButton = new QPushButton(tr("Quit")); + quitButton->setAutoDefault(false); + + server = new QLocalServer(this); + if (!server->listen("fortune")) { + QMessageBox::critical(this, tr("Fortune Server"), + tr("Unable to start the server: %1.") + .arg(server->errorString())); + close(); + return; + } + + statusLabel->setText(tr("The server is running.\n" + "Run the Fortune Client example now.")); + + fortunes << tr("You've been leading a dog's life. Stay off the furniture.") + << tr("You've got to think about tomorrow.") + << tr("You will be surprised by a loud noise.") + << tr("You will feel hungry again in another hour.") + << tr("You might have mail.") + << tr("You cannot kill time without injuring eternity.") + << tr("Computers are not intelligent. They only think they are."); + + connect(quitButton, SIGNAL(clicked()), this, SLOT(close())); + connect(server, SIGNAL(newConnection()), this, SLOT(sendFortune())); + + QHBoxLayout *buttonLayout = new QHBoxLayout; + buttonLayout->addStretch(1); + buttonLayout->addWidget(quitButton); + buttonLayout->addStretch(1); + + QVBoxLayout *mainLayout = new QVBoxLayout; + mainLayout->addWidget(statusLabel); + mainLayout->addLayout(buttonLayout); + setLayout(mainLayout); + + setWindowTitle(tr("Fortune Server")); +} + +void Server::sendFortune() +{ + QByteArray block; + QDataStream out(&block, QIODevice::WriteOnly); + out.setVersion(QDataStream::Qt_4_0); + out << (quint16)0; + out << fortunes.at(qrand() % fortunes.size()); + out.device()->seek(0); + out << (quint16)(block.size() - sizeof(quint16)); + + QLocalSocket *clientConnection = server->nextPendingConnection(); + connect(clientConnection, SIGNAL(disconnected()), + clientConnection, SLOT(deleteLater())); + + clientConnection->write(block); + clientConnection->flush(); + clientConnection->disconnectFromServer(); +} |