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https://github.com/qt/qtmqtt.git
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edd6855344
Replace the current license disclaimer in files by a SPDX-License-Identifier. License files are organized under LICENSES directory. Pick-to: 6.4 Task-number: QTBUG-67283 Change-Id: Ie4309963c8e17d4e7dad602f61a660246d5e23cb Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
// Copyright (C) 2018 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "configuration.h"
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#include <QCoreApplication>
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#include <QMqttClient>
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#include <QSslSocket>
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#include <QTimer>
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int main(int argc, char *argv[])
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{
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QCoreApplication a(argc, argv);
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QCoreApplication::setApplicationName(QStringLiteral("qtmqtt_sub"));
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QCoreApplication::setApplicationVersion(QStringLiteral("1.0"));
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// Create the client
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Configuration description;
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auto *client = createClientWithConfiguration(&a, &description, false);
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if (!client)
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return -1;
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a.connect(client, &QMqttClient::errorChanged, [&client](const QMqttClient::ClientError e) {
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if (e == QMqttClient::NoError)
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return;
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qWarning() << "Error Occurred:" << e << " Client state:" << client->state();
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client->disconnectFromHost();
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});
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a.connect(client, &QMqttClient::stateChanged, [&client] (QMqttClient::ClientState s) {
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if (s == QMqttClient::Disconnected) {
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client->deleteLater();
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qApp->quit();
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}
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});
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a.connect(client, &QMqttClient::connected, [&client, description]() {
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auto sub = client->subscribe(description.topic, description.qos);
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client->connect(sub, &QMqttSubscription::stateChanged, [&client](QMqttSubscription::SubscriptionState s) {
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qInfo() << "Subscription state:" << s;
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if (s == QMqttSubscription::Unsubscribed)
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client->disconnectFromHost();
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});
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client->connect(sub, &QMqttSubscription::messageReceived, [](const QMqttMessage &msg) {
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qInfo() << "ID:" << msg.id()
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<< "Topic:" << msg.topic().name()
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<< "QoS:" << msg.qos()
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<< "Retain:" << msg.retain()
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<< "Duplicate:" << msg.duplicate()
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<< "Payload:" << msg.payload().left(50) << (msg.payload().size() > 50 ? "..." : "");
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});
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});
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#ifndef QT_NO_SSL
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if (description.useEncryption)
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client->connectToHostEncrypted(description.sslConfiguration);
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else
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#endif
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client->connectToHost();
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return a.exec();
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}
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