Websockets newConnect signal doesn't seems to be emitted in my own class

marianexyx

Everything works fine when I wrote code exactly like it is in Websocket Echo Server example: http://doc.qt.io/qt-5/qtwebsockets-echoserver-echoserver-cpp.html. But when I move code to my own "Websokety" class, then it seems that the signal isn't emitted, or I can't catch it. I've made a class only for Webosckets:

main.cpp:

#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow server(1234); 
    server.show();

    return a.exec();
}

mainwindow.h:

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include "websokety.h"

namespace Ui 
{
class MainWindow;
}

class MainWindow : public QMainWindow
{
public:
    explicit MainWindow(quint16 port, QWidget *parent = 0);
    virtual ~MainWindow();

private:
    Ui::MainWindow *ui;

};

#endif // MAINWINDOW_H

mainwindow.cpp:

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(quint16 ws_port, QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    Websokety WebsoketySerwer(ws_port);
}

MainWindow::~MainWindow()
{
    delete ui;
}

websokety.h:

#ifndef WEBSOKETY_H
#define WEBSOKETY_H

#include <QObject>
#include <QtCore/QObject>
#include <QtCore/QList>
#include <QtCore/QByteArray>
#include "QtWebSockets/QWebSocketServer"
#include "QtWebSockets/QWebSocket"

QT_FORWARD_DECLARE_CLASS(QWebSocketServer)
QT_FORWARD_DECLARE_CLASS(QWebSocket)

class Websokety: public QObject
{
    Q_OBJECT

public:
    Websokety(quint16 port);

    QWebSocketServer *m_pWebSocketServer;
    QList<QWebSocket *> m_clients;

public Q_SLOTS:
    void onNewConnection();
};

#endif // WEBSOKETY_H

websokety.cpp:

#include "websokety.h"

Websokety::Websokety(quint16 port):
    m_pWebSocketServer(Q_NULLPTR),
    m_clients()
{
    m_pWebSocketServer = new QWebSocketServer(QStringLiteral("Chat Server"),
                                              QWebSocketServer::NonSecureMode,
                                              this);
    if (m_pWebSocketServer->listen(QHostAddress::Any, port))
    {
        qDebug() << "Server listening on port " << QString::number(port) << "\n";
        connect(m_pWebSocketServer, &QWebSocketServer::newConnection,
                this, &Websokety::onNewConnection);
    }
}

void Websokety::onNewConnection()
{
    qDebug() << "New websocking connection!";
}

Everything works fine when I merge back my own "Websokety" class into Mainwindow, and I receive message on qDebug: "New websocking connection!". What am I doing wrong?

SGaist

Hi,

You declare a local Websokety variable in your MainWindow constructor, it will get out of scope at the end of the constructor and thus get destroyed at that moment.