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<h1 class="title">server.cpp Example File</h1>
<span class="subtitle">ipc/localfortuneserver/server.cpp</span>
<!-- $$$ipc/localfortuneserver/server.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, 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 The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** $QT_END_LICENSE$
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****************************************************************************/</span>
<span class="preprocessor">#include <QtWidgets></span>
<span class="preprocessor">#include <QtNetwork></span>
<span class="preprocessor">#include <stdlib.h></span>
<span class="preprocessor">#include "server.h"</span>
<span class="preprocessor">#include <qlocalserver.h></span>
<span class="preprocessor">#include <qlocalsocket.h></span>
Server<span class="operator">::</span>Server(<span class="type"><a href="../qtwidgets/qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
: <span class="type"><a href="../qtwidgets/qdialog.html">QDialog</a></span>(parent)
{
statusLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qlabel.html">QLabel</a></span>;
statusLabel<span class="operator">-</span><span class="operator">></span>setWordWrap(<span class="keyword">true</span>);
quitButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qpushbutton.html">QPushButton</a></span>(tr(<span class="string">"Quit"</span>));
quitButton<span class="operator">-</span><span class="operator">></span>setAutoDefault(<span class="keyword">false</span>);
server <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtnetwork/qlocalserver.html">QLocalServer</a></span>(<span class="keyword">this</span>);
<span class="keyword">if</span> (<span class="operator">!</span>server<span class="operator">-</span><span class="operator">></span>listen(<span class="string">"fortune"</span>)) {
<span class="type"><a href="../qtwidgets/qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>critical(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Fortune Server"</span>)<span class="operator">,</span>
tr(<span class="string">"Unable to start the server: %1."</span>)
<span class="operator">.</span>arg(server<span class="operator">-</span><span class="operator">></span>errorString()));
close();
<span class="keyword">return</span>;
}
statusLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"The server is running.\n"</span>
<span class="string">"Run the Fortune Client example now."</span>));
fortunes <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"You've been leading a dog's life. Stay off the furniture."</span>)
<span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"You've got to think about tomorrow."</span>)
<span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"You will be surprised by a loud noise."</span>)
<span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"You will feel hungry again in another hour."</span>)
<span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"You might have mail."</span>)
<span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"You cannot kill time without injuring eternity."</span>)
<span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Computers are not intelligent. They only think they are."</span>);
connect(quitButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(close()));
connect(server<span class="operator">,</span> SIGNAL(newConnection())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(sendFortune()));
<span class="type"><a href="../qtwidgets/qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>buttonLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qhboxlayout.html">QHBoxLayout</a></span>;
buttonLayout<span class="operator">-</span><span class="operator">></span>addStretch(<span class="number">1</span>);
buttonLayout<span class="operator">-</span><span class="operator">></span>addWidget(quitButton);
buttonLayout<span class="operator">-</span><span class="operator">></span>addStretch(<span class="number">1</span>);
<span class="type"><a href="../qtwidgets/qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qvboxlayout.html">QVBoxLayout</a></span>;
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(statusLabel);
mainLayout<span class="operator">-</span><span class="operator">></span>addLayout(buttonLayout);
setLayout(mainLayout);
setWindowTitle(tr(<span class="string">"Fortune Server"</span>));
}
<span class="type">void</span> Server<span class="operator">::</span>sendFortune()
{
<span class="type"><a href="qbytearray.html">QByteArray</a></span> block;
<span class="type"><a href="qdatastream.html">QDataStream</a></span> out(<span class="operator">&</span>block<span class="operator">,</span> <span class="type"><a href="qiodevice.html">QIODevice</a></span><span class="operator">::</span>WriteOnly);
out<span class="operator">.</span>setVersion(<span class="type"><a href="qdatastream.html">QDataStream</a></span><span class="operator">::</span>Qt_4_0);
out <span class="operator"><</span><span class="operator"><</span> (<span class="type"><a href="qtglobal.html#quint32-typedef">quint32</a></span>)<span class="number">0</span>;
out <span class="operator"><</span><span class="operator"><</span> fortunes<span class="operator">.</span>at(qrand() <span class="operator">%</span> fortunes<span class="operator">.</span>size());
out<span class="operator">.</span>device()<span class="operator">-</span><span class="operator">></span>seek(<span class="number">0</span>);
out <span class="operator"><</span><span class="operator"><</span> (<span class="type"><a href="qtglobal.html#quint32-typedef">quint32</a></span>)(block<span class="operator">.</span>size() <span class="operator">-</span> <span class="keyword">sizeof</span>(<span class="type"><a href="qtglobal.html#quint32-typedef">quint32</a></span>));
<span class="type"><a href="../qtnetwork/qlocalsocket.html">QLocalSocket</a></span> <span class="operator">*</span>clientConnection <span class="operator">=</span> server<span class="operator">-</span><span class="operator">></span>nextPendingConnection();
connect(clientConnection<span class="operator">,</span> SIGNAL(disconnected())<span class="operator">,</span>
clientConnection<span class="operator">,</span> SLOT(deleteLater()));
clientConnection<span class="operator">-</span><span class="operator">></span>write(block);
clientConnection<span class="operator">-</span><span class="operator">></span>flush();
clientConnection<span class="operator">-</span><span class="operator">></span>disconnectFromServer();
}
</pre>
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<!-- @@@ipc/localfortuneserver/server.cpp -->
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