QThread events not ocurring as expected

Drazz

Hello,
I've got this code:

worker.h

class Worker : public QObject
{
public:
    Worker() {}

public slots:
    void operate() {

        while(!QThread::currentThread()->isInterruptionRequested()) {
            qDebug() << "Operating";
        }

    }
};

Core.h

class Core : public QObject
{
public:
    Core() {

        worker.moveToThread(&myThread);

        connect(&myThread, &QThread::started, &worker, &Worker::operate);

        connect(&myThread, &QThread::started, this, [=] {
           qDebug() << "thread started";
        });

        connect(&myThread, &QThread::finished, this, [=] {
            qDebug() << "thread finished";
        });

        QTimer::singleShot(1000, this, [=] {
            myThread.requestInterruption();
            myThread.quit();
        });

        myThread.start();

    }

private:
    QThread myThread;
    Worker worker;

};

main.cpp

#include <QCoreApplication>


#include "core.h"

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    Core core;

    return a.exec();
}

And output is:

Operating
Operating
...
Operating
thread started
thread finished

I'm expecting this output:

thread started
Operating
...
Operating
thread finished

What I'am missing?

VRonin

Slots are executed in the order of connection. if you simply move connect(&myThread, &QThread::started, &worker, &Worker::operate); below connect(&myThread, &QThread::started, this, [=] { qDebug() << "thread started";}); then the output should be what you expect.

P.S.
Allocating worker on the stack can create problems as it can go out of scope in the main thread and get deleted while the secondary thread is still working on it

VRonin

Slots are executed in the order of connection. if you simply move connect(&myThread, &QThread::started, &worker, &Worker::operate); below connect(&myThread, &QThread::started, this, [=] { qDebug() << "thread started";}); then the output should be what you expect.

P.S.
Allocating worker on the stack can create problems as it can go out of scope in the main thread and get deleted while the secondary thread is still working on it

Drazz

Worked. I was looking solution in wrong direction.

Thanks for advice!

Solved QThread events not ocurring as expected