59b860450f
- Use QDBusServiceWatcher to detect that pong service became available (QDBusConnectionInterface::serviceOwnerChanged() signal is deprecated). - Use new connection syntax. Task-number: QTBUG-28082 Change-Id: I7b93b961ee6d45aaeefab77fa1d1943e38b4a4c0 Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
118 lines
4.3 KiB
C++
118 lines
4.3 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2015 The Qt Company Ltd.
|
|
** Contact: http://www.qt.io/licensing/
|
|
**
|
|
** 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 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.
|
|
**
|
|
**
|
|
** 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 <stdio.h>
|
|
|
|
#include <QtCore/QCoreApplication>
|
|
#include <QtCore/QFile>
|
|
#include <QtCore/QDebug>
|
|
#include <QtCore/QProcess>
|
|
#include <QtDBus/QtDBus>
|
|
|
|
#include "ping-common.h"
|
|
#include "complexping.h"
|
|
|
|
void Ping::start(const QString &name)
|
|
{
|
|
if (name != SERVICE_NAME)
|
|
return;
|
|
|
|
// open stdin for reading
|
|
qstdin.open(stdin, QIODevice::ReadOnly);
|
|
|
|
// find our remote
|
|
iface = new QDBusInterface(SERVICE_NAME, "/", "org.example.QtDBus.ComplexPong.Pong",
|
|
QDBusConnection::sessionBus(), this);
|
|
if (!iface->isValid()) {
|
|
fprintf(stderr, "%s\n",
|
|
qPrintable(QDBusConnection::sessionBus().lastError().message()));
|
|
QCoreApplication::instance()->quit();
|
|
}
|
|
|
|
connect(iface, SIGNAL(aboutToQuit()), QCoreApplication::instance(), SLOT(quit()));
|
|
|
|
while (true) {
|
|
printf("Ask your question: ");
|
|
|
|
QString line = QString::fromLocal8Bit(qstdin.readLine()).trimmed();
|
|
if (line.isEmpty()) {
|
|
iface->call("quit");
|
|
return;
|
|
} else if (line == "value") {
|
|
QVariant reply = iface->property("value");
|
|
if (!reply.isNull())
|
|
printf("value = %s\n", qPrintable(reply.toString()));
|
|
} else if (line.startsWith("value=")) {
|
|
iface->setProperty("value", line.mid(6));
|
|
} else {
|
|
QDBusReply<QDBusVariant> reply = iface->call("query", line);
|
|
if (reply.isValid())
|
|
printf("Reply was: %s\n", qPrintable(reply.value().variant().toString()));
|
|
}
|
|
|
|
if (iface->lastError().isValid())
|
|
fprintf(stderr, "Call failed: %s\n", qPrintable(iface->lastError().message()));
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
QCoreApplication app(argc, argv);
|
|
|
|
if (!QDBusConnection::sessionBus().isConnected()) {
|
|
fprintf(stderr, "Cannot connect to the D-Bus session bus.\n"
|
|
"To start it, run:\n"
|
|
"\teval `dbus-launch --auto-syntax`\n");
|
|
return 1;
|
|
}
|
|
|
|
QDBusServiceWatcher serviceWatcher(SERVICE_NAME, QDBusConnection::sessionBus(),
|
|
QDBusServiceWatcher::WatchForRegistration);
|
|
|
|
Ping ping;
|
|
QObject::connect(&serviceWatcher, &QDBusServiceWatcher::serviceRegistered,
|
|
&ping, &Ping::start);
|
|
|
|
QProcess pong;
|
|
pong.start("./complexpong");
|
|
|
|
app.exec();
|
|
}
|