快速安全 CoAP 客户端范例

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#include "qmlcoapsecureclient.h"
#include <QGuiApplication>
#include <QNetworkInterface>
#include <QQmlApplicationEngine>
#include <QQmlContext>
static QStringList availableHosts()
{
    QStringList hosts;
    const auto networkInterfaces = QNetworkInterface::allInterfaces();
    for (const auto &interface : networkInterfaces)
        for (const auto &address : interface.addressEntries())
            hosts.push_back(address.ip().toString());
    return hosts;
}
int main(int argc, char *argv[])
{
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QCoreApplication::setOrganizationName("Qt CoAP Example");
    QGuiApplication app(argc, argv);
    QQmlApplicationEngine engine;
    qmlRegisterType<QmlCoapSecureClient>("CoapSecureClient", 1, 0, "CoapSecureClient");
    // Register the QtCoap namespace
    qmlRegisterUncreatableMetaObject(QtCoap::staticMetaObject, "qtcoap.example.namespace", 1, 0,
                                     "QtCoap", "Access to enums is read-only");
    const QUrl url(QStringLiteral("qrc:/main.qml"));
    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
                     &app, [url](QObject *obj, const QUrl &objUrl) {
        // Exit with error, if the object for main.qml could not be loaded.
        if (!obj && url == objUrl)
            QCoreApplication::exit(-1);
    }, Qt::QueuedConnection);
    engine.rootContext()->setContextProperty("hostsModel", availableHosts());
    engine.load(url);
    return app.exec();
}