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50
51#include "server.h"
52
53#include <QtWidgets>
54#include <QtNetwork>
55
56Server::Server(QWidget *parent)
57 : QDialog(parent)
58{
59 setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
60
61 server = new QLocalServer(this);
62 if (!server->listen(name: "fortune")) {
63 QMessageBox::critical(parent: this, title: tr(s: "Local Fortune Server"),
64 text: tr(s: "Unable to start the server: %1.")
65 .arg(a: server->errorString()));
66 close();
67 return;
68 }
69
70 QLabel *statusLabel = new QLabel;
71 statusLabel->setWordWrap(true);
72 statusLabel->setText(tr(s: "The server is running.\n"
73 "Run the Local Fortune Client example now."));
74
75 fortunes << tr(s: "You've been leading a dog's life. Stay off the furniture.")
76 << tr(s: "You've got to think about tomorrow.")
77 << tr(s: "You will be surprised by a loud noise.")
78 << tr(s: "You will feel hungry again in another hour.")
79 << tr(s: "You might have mail.")
80 << tr(s: "You cannot kill time without injuring eternity.")
81 << tr(s: "Computers are not intelligent. They only think they are.");
82
83 QPushButton *quitButton = new QPushButton(tr(s: "Quit"));
84 quitButton->setAutoDefault(false);
85 connect(sender: quitButton, signal: &QPushButton::clicked, receiver: this, slot: &Server::close);
86 connect(sender: server, signal: &QLocalServer::newConnection, receiver: this, slot: &Server::sendFortune);
87
88 QHBoxLayout *buttonLayout = new QHBoxLayout;
89 buttonLayout->addStretch(stretch: 1);
90 buttonLayout->addWidget(quitButton);
91 buttonLayout->addStretch(stretch: 1);
92
93 QVBoxLayout *mainLayout = new QVBoxLayout(this);
94 mainLayout->addWidget(statusLabel);
95 mainLayout->addLayout(layout: buttonLayout);
96
97 setWindowTitle(QGuiApplication::applicationDisplayName());
98}
99
100void Server::sendFortune()
101{
102 QByteArray block;
103 QDataStream out(&block, QIODevice::WriteOnly);
104 out.setVersion(QDataStream::Qt_5_10);
105 const int fortuneIndex = QRandomGenerator::global()->bounded(lowest: 0, highest: fortunes.size());
106 const QString &message = fortunes.at(i: fortuneIndex);
107 out << quint32(message.size());
108 out << message;
109
110 QLocalSocket *clientConnection = server->nextPendingConnection();
111 connect(sender: clientConnection, signal: &QLocalSocket::disconnected,
112 receiver: clientConnection, slot: &QLocalSocket::deleteLater);
113
114 clientConnection->write(data: block);
115 clientConnection->flush();
116 clientConnection->disconnectFromServer();
117}
118

source code of qtbase/examples/corelib/ipc/localfortuneserver/server.cpp