source: trunk/examples/ipc/localfortuneserver/server.cpp@ 651

Last change on this file since 651 was 651, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.2 sources.

File size: 4.1 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include <QtGui>
43#include <QtNetwork>
44
45#include <stdlib.h>
46
47#include "server.h"
48#include <qlocalserver.h>
49#include <qlocalsocket.h>
50
51Server::Server(QWidget *parent)
52 : QDialog(parent)
53{
54 statusLabel = new QLabel;
55 quitButton = new QPushButton(tr("Quit"));
56 quitButton->setAutoDefault(false);
57
58 server = new QLocalServer(this);
59 if (!server->listen("fortune")) {
60 QMessageBox::critical(this, tr("Fortune Server"),
61 tr("Unable to start the server: %1.")
62 .arg(server->errorString()));
63 close();
64 return;
65 }
66
67 statusLabel->setText(tr("The server is running.\n"
68 "Run the Fortune Client example now."));
69
70 fortunes << tr("You've been leading a dog's life. Stay off the furniture.")
71 << tr("You've got to think about tomorrow.")
72 << tr("You will be surprised by a loud noise.")
73 << tr("You will feel hungry again in another hour.")
74 << tr("You might have mail.")
75 << tr("You cannot kill time without injuring eternity.")
76 << tr("Computers are not intelligent. They only think they are.");
77
78 connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
79 connect(server, SIGNAL(newConnection()), this, SLOT(sendFortune()));
80
81 QHBoxLayout *buttonLayout = new QHBoxLayout;
82 buttonLayout->addStretch(1);
83 buttonLayout->addWidget(quitButton);
84 buttonLayout->addStretch(1);
85
86 QVBoxLayout *mainLayout = new QVBoxLayout;
87 mainLayout->addWidget(statusLabel);
88 mainLayout->addLayout(buttonLayout);
89 setLayout(mainLayout);
90
91 setWindowTitle(tr("Fortune Server"));
92}
93
94void Server::sendFortune()
95{
96 QByteArray block;
97 QDataStream out(&block, QIODevice::WriteOnly);
98 out.setVersion(QDataStream::Qt_4_0);
99 out << (quint16)0;
100 out << fortunes.at(qrand() % fortunes.size());
101 out.device()->seek(0);
102 out << (quint16)(block.size() - sizeof(quint16));
103
104 QLocalSocket *clientConnection = server->nextPendingConnection();
105 connect(clientConnection, SIGNAL(disconnected()),
106 clientConnection, SLOT(deleteLater()));
107
108 clientConnection->write(block);
109 clientConnection->flush();
110 clientConnection->disconnectFromServer();
111}
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