Timer in thread's worker Qt - c++

Question

I'm trying to use timer in worker class. This is my Worker class:
Worker.h
class Worker : public QObject
{
Q_OBJECT
public:
explicit Worker(QObject *parent = nullptr);
signals:
void finished(void);
public slots:
void process(void);
void test(void);
private:
QMutex m_mutex;
};
Worker.cpp
void Worker::process(void)
{
qDebug() << "worker process"; //This works
QTimer *timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(test()));
forever
{
}
}
void Worker::test(void)
{
qDebug() << "test123"; //This does not work
}
I start this worker class in new thread:
QThread *thread = new QThread;
Worker *worker = new Worker;
worker->moveToThread(thread);
QObject::connect(thread, SIGNAL(started()), worker, SLOT(process()), Qt::QueuedConnection);
QObject::connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()));
QObject::connect(worker, SIGNAL(finished()), thread, SLOT(quit()));
QObject::connect(worker, SIGNAL(finished()), worker, SLOT(deleteLater()));
thread->start();
The problem is that timer from Worker::process does not work. Do I need to initialize this timer in new thread in special way?

Answer 1

You need to call void QTimer::start(int msec) or void QTimer::start() after you create the timer. You also don't need "forever" in your process() slot.
Try this instead:
void Worker::process(void)
{
qDebug() << "worker process"; //This works
QTimer *timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(test()));
timer->start(1000); // Fire timer timeout each 1000ms.
}