Calling QThread.wait() from mainthread

[P@u1]

Hello everyone,

I tried code similar to the following (i shortened it a bit):

class WorkerThread : public QThread
{
   Q_OBJECT
   public:
       ~WorkerThread();
   protected:
       void run();
   private slots:
       void update();
   private:
       volatile bool m_isInterrupted;
};
WorkerThread::~Workerthread()
{
    m_isInterrupted = true;
    wait();
}
void WorkerThread::run()
{
    QTimer * timer = new QTimer(this);
    connect(timer, SIGNAL(timeout()), this, SLOT(update()));
    timer->start(80);
    exec();
}
void WorkerThread::update()
{
    if(m_isInterrupted)
    {
         quit();
    }
    //do something
}

class WorkerThread : public QThread
{
   Q_OBJECT
   public:
       ~WorkerThread();
   protected:
       void run();
   private slots:
       void update();
   private:
       volatile bool m_isInterrupted;
};
WorkerThread::~Workerthread()
{
    m_isInterrupted = true;
    wait();
}
void WorkerThread::run()
{
    QTimer * timer = new QTimer(this);
    connect(timer, SIGNAL(timeout()), this, SLOT(update()));
    timer->start(80);
    exec();
}
void WorkerThread::update()
{
    if(m_isInterrupted)
    {
         quit();
    }
    //do something
}

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The wait() call is needed to prevent the main thread from deleting the workerThread object, while it is still running...

Note: I tested it with slightly different code, so I'm not 100% sure if the following statements are accurate, but I think so:
When closing the application, the process does not terminate and the quit() method is never called, which I verified by debugging.

I think this happens because when the mainthread calls wait() somehow the workingthread's event queue is not dispatched anymore, but I don't understand why, I thought the workingthread has a different evene queue.

It would be nice if you can explain me, why this happens and how I can fix it.
Alternative solutions for my problem would be nice, too!

Thanks for help in advance!