f73e3669b3
The function toStdString() is only available when QT was compiled with STL support. The configure script does not check STL support and might build the QT examples even if toStdString() is not available. Fix this, by not using the function. https://bugzilla.gnome.org/show_bug.cgi?id=727608 Signed-off-by: Thomas Haller <thaller@redhat.com>
90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* vim: set ft=c ts=4 sts=4 sw=4 expandtab smartindent: */
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* (C) Copyright 2012 Red Hat, Inc.
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*/
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/*
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* This example monitors whether NM is running by checking if
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* "org.freedesktop.NetworkManager" is owned by a process on D-Bus.
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* It uses QDBusServiceWatcher class.
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*
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* Standalone compilation:
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* moc-qt4 monitor-nm-running.cpp -o monitor-nm-running.moc
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* g++ -Wall `pkg-config --libs --cflags QtCore QtDBus` monitor-nm-running.cpp -o monitor-nm-running
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*
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* You don't need to have NetworkManager devel package installed.
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*/
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#include <iostream>
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#include <QObject>
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#include <QCoreApplication>
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#include <QtDBus/QDBusServiceWatcher>
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#include <QtDBus/QDBusConnection>
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#include <QtCore/QDebug>
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const QString NM_DBUS_SERVICE = "org.freedesktop.NetworkManager";
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// Define a class with slots
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class NMWatcher: public QObject {
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Q_OBJECT;
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public slots:
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void serviceRegistered(const QString& name);
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void serviceUnregistered(const QString& name);
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};
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void NMWatcher::serviceRegistered(const QString& name)
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{
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std::cout << "Name '" << name.constData() << "' registered"
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<< " => NM is running" << std::endl;
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}
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void NMWatcher::serviceUnregistered(const QString& name)
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{
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std::cout << "Name '" << name.constData() << "' unregistered"
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<< " => NM is not running" << std::endl;
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}
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int main(int argc, char *argv[])
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{
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QCoreApplication app (argc, argv);
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qDebug() << "Monitor 'org.freedesktop.NetworkManager' D-Bus name";
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qDebug() << "===================================================";
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NMWatcher nm_watcher;
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// Watch all changes of D-Bus NM_DBUS_SERVICE name
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QDBusServiceWatcher *watcher = new QDBusServiceWatcher(NM_DBUS_SERVICE,
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QDBusConnection::systemBus());
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QObject::connect(watcher, SIGNAL(serviceRegistered(const QString&)),
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&nm_watcher, SLOT(serviceRegistered(const QString&)));
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QObject::connect(watcher, SIGNAL(serviceUnregistered(const QString&)),
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&nm_watcher, SLOT(serviceUnregistered(const QString&)));
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app.exec();
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delete watcher;
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return 0;
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}
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#include "monitor-nm-running.moc"
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