[Qt-interest] QFile.waitForReadyRead() not working on dev file

[Linus Casassa]

Thanks for the help. I made the code work by putting the device.read() on a
thread and killing the thread when I need to change the device :)

class QJoyStick : public QThread
{
    ...
    void QJoyStick::run( );
    void QJoyStick::close( );
    ...
}

void QJoyStick::run( )
{
    while( runFlag )
    {
        if ( device.read( (char*)&data, sizeof(data) ) == sizeof(data) )
        {
             ...
        }
    }
}

void QJoyStick::close( )
{
    terminate();
    wait();
    device.close();
}

2009/3/18 Thiago Macieira <thiago.macieira at trolltech.com>

> Linus Casassa wrote:
> >waitForReadyRead() always returns 0 without waiting 1 second. It prints
> >thousands of "looping"s.
>
> waitForReadyRead() doesn't do anything in QFile. You have to use
> QSocketNotifier and an event loop if you want to do that. And you must
> understand your code will be non-portable (QSocketNotifier only works on
> sockets on Windows).
>
> --
> Thiago Macieira - thiago.macieira (AT) nokia.com
>  Senior Product Manager - Nokia, Qt Software
>      Sandakerveien 116, NO-0402 Oslo, Norway
>
> _______________________________________________
> Qt-interest mailing list
> Qt-interest at trolltech.com
> http://lists.trolltech.com/mailman/listinfo/qt-interest
>
>


-- 
Linus Casassa
Estudiante Ingeniería Civil Electrónica
Fono: 56-9-97776941
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