1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the examples of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** BSD License Usage
18** Alternatively, you may use this file under the terms of the BSD license
19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** * Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in
28** the documentation and/or other materials provided with the
29** distribution.
30** * Neither the name of The Qt Company Ltd nor the names of its
31** contributors may be used to endorse or promote products derived
32** from this software without specific prior written permission.
33**
34**
35** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
46**
47** $QT_END_LICENSE$
48**
49****************************************************************************/
50
51#include "ping-common.h"
52#include "complexping.h"
53
54#include <QCoreApplication>
55#include <QDBusReply>
56#include <QDBusServiceWatcher>
57#include <QFile>
58#include <QDebug>
59#include <QProcess>
60
61#include <stdio.h>
62
63void Ping::start(const QString &name)
64{
65 if (name != SERVICE_NAME)
66 return;
67
68 // open stdin for reading
69 qstdin.open(stdin, QIODevice::ReadOnly);
70
71 // find our remote
72 iface = new QDBusInterface(SERVICE_NAME, "/", "org.example.QtDBus.ComplexPong.Pong",
73 QDBusConnection::sessionBus(), this);
74 if (!iface->isValid()) {
75 fprintf(stderr, "%s\n",
76 qPrintable(QDBusConnection::sessionBus().lastError().message()));
77 QCoreApplication::instance()->quit();
78 }
79
80 connect(iface, SIGNAL(aboutToQuit()), QCoreApplication::instance(), SLOT(quit()));
81
82 while (true) {
83 printf("Ask your question: ");
84
85 QString line = QString::fromLocal8Bit(qstdin.readLine()).trimmed();
86 if (line.isEmpty()) {
87 iface->call("quit");
88 return;
89 } else if (line == "value") {
90 QVariant reply = iface->property("value");
91 if (!reply.isNull())
92 printf("value = %s\n", qPrintable(reply.toString()));
93 } else if (line.startsWith("value=")) {
94 iface->setProperty("value", line.mid(6));
95 } else {
96 QDBusReply<QDBusVariant> reply = iface->call("query", line);
97 if (reply.isValid())
98 printf("Reply was: %s\n", qPrintable(reply.value().variant().toString()));
99 }
100
101 if (iface->lastError().isValid())
102 fprintf(stderr, "Call failed: %s\n", qPrintable(iface->lastError().message()));
103 }
104}
105
106int main(int argc, char **argv)
107{
108 QCoreApplication app(argc, argv);
109
110 if (!QDBusConnection::sessionBus().isConnected()) {
111 fprintf(stderr, "Cannot connect to the D-Bus session bus.\n"
112 "To start it, run:\n"
113 "\teval `dbus-launch --auto-syntax`\n");
114 return 1;
115 }
116
117 QDBusServiceWatcher serviceWatcher(SERVICE_NAME, QDBusConnection::sessionBus(),
118 QDBusServiceWatcher::WatchForRegistration);
119
120 Ping ping;
121 QObject::connect(&serviceWatcher, &QDBusServiceWatcher::serviceRegistered,
122 &ping, &Ping::start);
123
124 QProcess pong;
125 pong.start("./complexpong");
126
127 app.exec();
128}
129