qt 6.5.1 original

examples/dbus/pingpong/CMakeLists.txt

@@ -0,0 +1,41 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(pingpong LANGUAGES CXX)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/dbus/pingpong")
+
+find_package(Qt6 REQUIRED COMPONENTS Core DBus)
+
+qt_standard_project_setup()
+
+qt_add_executable(ping
+    ping.cpp
+    ping-common.h
+)
+
+target_link_libraries(ping PRIVATE
+    Qt6::Core
+    Qt6::DBus
+)
+
+qt_add_executable(pong
+    ping-common.h
+    pong.cpp
+)
+
+target_link_libraries(pong PRIVATE
+    Qt6::Core
+    Qt6::DBus
+)
+
+install(TARGETS ping pong
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)

examples/dbus/pingpong/ping-common.h

@@ -0,0 +1,4 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#define SERVICE_NAME            "org.example.QtDBus.PingExample"

examples/dbus/pingpong/ping.cpp

@@ -0,0 +1,40 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "ping-common.h"
+
+#include <QCoreApplication>
+#include <QDBusConnection>
+#include <QDBusInterface>
+#include <QDBusReply>
+
+#include <iostream>
+
+int main(int argc, char **argv)
+{
+    QCoreApplication app(argc, argv);
+
+    auto connection = QDBusConnection::sessionBus();
+
+    if (!connection.isConnected()) {
+        qWarning("Cannot connect to the D-Bus session bus.\n"
+                 "To start it, run:\n"
+                 "\teval `dbus-launch --auto-syntax`\n");
+        return 1;
+    }
+
+    QDBusInterface iface(SERVICE_NAME, "/");
+    if (iface.isValid()) {
+        QDBusReply<QString> reply = iface.call("ping", argc > 1 ? argv[1] : "");
+        if (reply.isValid()) {
+            std::cout << "Reply was: " << qPrintable(reply.value()) << std::endl;
+            return 0;
+        }
+
+        qWarning("Call failed: %s\n", qPrintable(reply.error().message()));
+        return 1;
+    }
+
+    qWarning("%s\n", qPrintable(connection.lastError().message()));
+    return 1;
+}

examples/dbus/pingpong/ping.pro

@@ -0,0 +1,8 @@
+QT -= gui
+QT += dbus
+
+HEADERS += ping-common.h
+SOURCES += ping.cpp
+
+target.path = $$[QT_INSTALL_EXAMPLES]/dbus/pingpong
+INSTALLS += target

examples/dbus/pingpong/pingpong.pro

@@ -0,0 +1,3 @@
+TEMPLATE = subdirs
+win32:CONFIG += console
+SUBDIRS = ping.pro pong.pro

examples/dbus/pingpong/pong.cpp

@@ -0,0 +1,49 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "ping-common.h"
+
+#include <QObject>
+#include <QCoreApplication>
+#include <QDBusConnection>
+#include <QDBusError>
+
+class Pong : public QObject
+{
+    Q_OBJECT
+public slots:
+    QString ping(const QString &arg);
+};
+
+QString Pong::ping(const QString &arg)
+{
+    QMetaObject::invokeMethod(QCoreApplication::instance(), &QCoreApplication::quit);
+    return QString("ping(\"%1\") got called").arg(arg);
+}
+
+int main(int argc, char **argv)
+{
+    QCoreApplication app(argc, argv);
+
+    auto connection = QDBusConnection::sessionBus();
+
+    if (!connection.isConnected()) {
+        qWarning("Cannot connect to the D-Bus session bus.\n"
+                 "To start it, run:\n"
+                 "\teval `dbus-launch --auto-syntax`\n");
+        return 1;
+    }
+
+    if (!connection.registerService(SERVICE_NAME)) {
+        qWarning("%s\n", qPrintable(connection.lastError().message()));
+        exit(1);
+    }
+
+    Pong pong;
+    connection.registerObject("/", &pong, QDBusConnection::ExportAllSlots);
+
+    app.exec();
+    return 0;
+}
+
+#include "pong.moc"

examples/dbus/pingpong/pong.pro

@@ -0,0 +1,8 @@
+QT -= gui
+QT += dbus
+
+HEADERS += ping-common.h
+SOURCES += pong.cpp
+
+target.path = $$[QT_INSTALL_EXAMPLES]/dbus/pingpong
+INSTALLS += target