qt5base-lts/examples/dbus/complexpingpong/complexpong.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "ping-common.h"
#include "complexpong.h"
#include <QCoreApplication>
#include <QDBusConnection>
#include <QDBusError>
#include <QTimer>
#include <stdio.h>
#include <stdlib.h>
// the property
QString Pong::value() const
{
return m_value;
}
void Pong::setValue(const QString &newValue)
{
m_value = newValue;
}
void Pong::quit()
{
QTimer::singleShot(0, QCoreApplication::instance(), &QCoreApplication::quit);
}
QDBusVariant Pong::query(const QString &query)
{
QString q = query.toLower();
if (q == "hello")
return QDBusVariant("World");
if (q == "ping")
return QDBusVariant("Pong");
if (q.indexOf("the answer to life, the universe and everything") != -1)
return QDBusVariant(42);
if (q.indexOf("unladen swallow") != -1) {
if (q.indexOf("european") != -1)
return QDBusVariant(11.0);
return QDBusVariant(QByteArray("african or european?"));
}
return QDBusVariant("Sorry, I don't know the answer");
}
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
QObject obj;
Pong *pong = new Pong(&obj);
QObject::connect(&app, &QCoreApplication::aboutToQuit, pong, &Pong::aboutToQuit);
pong->setProperty("value", "initial value");
QDBusConnection::sessionBus().registerObject("/", &obj);
if (!QDBusConnection::sessionBus().registerService(SERVICE_NAME)) {
fprintf(stderr, "%s\n",
qPrintable(QDBusConnection::sessionBus().lastError().message()));
exit(1);
}
app.exec();
return 0;
}