events/main.cpp

#include <QApplication>
#include <QTextStream>
#include <QDebug>

#include <qxtglobalshortcut.h>

#include "qamqpclient.h"
#include "qamqpexchange.h"
#include "qamqpqueue.h"

class Receiver : public QObject
{
    Q_OBJECT
public:
    Receiver(QObject *parent = 0) : QObject(parent) {
        m_client.setAutoReconnect(true);
    }

public Q_SLOTS:
    void start() {
        connect(&m_client, SIGNAL(connected()), this, SLOT(clientConnected()));
        m_client.connectToHost();
    }

    void OneShot(void) {
        m_client.connectToHost();
    }

private Q_SLOTS:
    void clientConnected() {
        QAmqpQueue *queue = m_client.createQueue("hello");
        disconnect(queue, 0, 0, 0); // in case this is a reconnect
        connect(queue, SIGNAL(declared()), this, SLOT(queueDeclared()));
        queue->declare();
    }

    void queueDeclared() {
        QAmqpQueue *queue = qobject_cast<QAmqpQueue*>(sender());
        if (!queue)
            return;

        connect(queue, SIGNAL(messageReceived()), this, SLOT(messageReceived()));

        // queue->consume(QAmqpQueue::coNoAck);
        // queue->consume(QAmqpQueue::coNoLocal);

        qint32 sizeQueue = queue->messageCount();
        while (sizeQueue--) {
            queue->get(false);
        }

        qDebug() << Qt::endl << " [*] Waiting for messages. To exit press CTRL+C";

        // queue->ack(3, false);  // Acknowledgement the 3rd message.

        // queue->reopen();

        m_client.disconnectFromHost();
    }

    void messageReceived() {
        QAmqpQueue *queue = qobject_cast<QAmqpQueue*>(sender());
        if (!queue)
            return;

        QAmqpMessage message = queue->dequeue();
        qDebug() << " [x] Received in" << message.payload();

        int input=0;
        // std::scanf("%d", &input);
        qDebug() << " [x] Received out, " << message.deliveryTag() << " | " <<  message.payload() << "  ,   input = " << input;
    }

private:
    QAmqpClient m_client;

};

int main(int argc, char **argv)
{
    qDebug() << " " << Qt::endl;
    QApplication app(argc, argv);

    QTextStream out(stdout);
    QTextStream err(stderr);

    const QKeySequence shortcut("Ctrl+Shift+Z");
    const QxtGlobalShortcut globalShortcut(shortcut);

    if ( !globalShortcut.isValid() ) {
        err << QString("Error: Failed to set shortcut %1")
        .arg(shortcut.toString()) << Qt::endl;
        return 1;
    }

    out << QString("Press shortcut %1 (or CTRL+C to exit)").arg(shortcut.toString()) << Qt::endl;

    Receiver receiver;

    QObject::connect(
        &globalShortcut, &QxtGlobalShortcut::activated, &globalShortcut,
        [&]{
            // out << QLatin1String("Shortcut pressed!") << Qt::endl;
            receiver.OneShot();
            // QApplication::quit();
        });


    receiver.start();

    return app.exec();
}

#include "main.moc"