ioslave terminating mechanism

[aleXXX]

On Wednesday 17 April 2002 17:11, Malte Starostik wrote:
> Hi,
>
> kio_thumbnail sometimes keeps hanging around after receiving SIGTERM and
> has to be KILLed. This happens when a HTML preview is being generated while
> the slave is killed, e.g. when you go to somewhere else in konq during
> preview generation.
> I've seen different bt's, mostly:
> * KHTMLPart's dtor result in XFlush() due to the (actually already hidden
> widget being hidden) => ~90% CPU, most of it system

The following code ?

HTMLCreator::~HTMLCreator()
{
    delete m_html;
}

bool HTMLCreator::create(const QString &path, int width, int height, QImage 
&img)
{
    if (!m_html)
    {
        m_html = new KHTMLPart;

You create a qobject with parent 0 and delete it in the dtor of the class 
which owns the pointer. I did the same and always had a crash in the dtor 
when I tried to hide() (or was it delete ?) the widgets when exiting the app 
normally (i.e. not due to signals). So deleting or accessing 0-parent widgets 
in the dtor of the owning class when exiting the app seems to be a bad idea, 
not only in ioslaves.

Bye
Alex