QThread and QEventLoop - Idle Processing

[kloffy]

After reading the documentation, I'm still not quite clear on how to use a QEventLoop to do idle processing in a QThread. Basically I want to have a thread that connects a device. Once a device is connected I want to use idle processing to poll the device. The user can terminate the thread using the quit function (which disconnects the device if necessary). As far as I understand, this is how you make your thread enter an event loop when it is started.

void MyThread::run()
 {
    exec();
 }

void MyThread::run()
 {
    exec();
 }

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So my question basically is: where do I put the code that does the polling of the device?

To make your application perform idle processing (i.e. executing a
special function whenever there are no pending events), use a
QTimer with 0 timeout. More sophisticated idle processing schemes
can be achieved using processEvents().

Can someone post an example for this? What are the " sophisticated idle processing schemes"?

Here is a rough overview of how my run function would look without an event loop:

void MyThread::run()
 {
    connect_device();
 
    done = false;
 
    while(!done)
    {
        poll_device();
    }
 
    disconnect_device();
 }
 
void MyThread::quit()
 {
    done = true;
 }

void MyThread::run()
 {
    connect_device();

    done = false;

    while(!done)
    {
        poll_device();
    }

    disconnect_device();
 }

void MyThread::quit()
 {
    done = true;
 }

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