On Wednesday 27 November 2002 07:05 am, Martin Drautzburg wrote:
> goran.hultgren at bluefish.se writes:
> > "...is because processes are partially preemptive. A running
> > process will not be interrupted by another process of equal or
> > lesser priority. A process will keep running until it does a time
> > consuming operation such as waiting on a socket read or on an
> > instance of Delay, or the process explicitly gives up control, or
> > a higher priority process is ready to run."
>
> Does that mean if all a process does it loop, then there is no way
> to interrupt it ?  If I run
>         [true] whileTrue: [nil]
> it locks up the UI but I can still gain control with Alt-.

It locks up the UI because you're doing it in the UI thread.

If you do this:

	[[true] whileTrue ] fork

then you'll get another Process at the same priority as the UI. But 
you can still operate the UI, though very slowly.

-- 
Ned Konz
http://bike-nomad.com
GPG key ID: BEEA7EFE