Hi Joachim,

    the Behavior>>flushCache method, primitive 89, flushes the entire cache,
so its all you need. There are alternative primitives that flush
selectively, i.e. Symbol>>flushCache, primitive 119, and
CompiledMethod>>flushCache, primitive 116, flush only entries for the
receivers.

HTH
Eliot

On Thu, May 20, 2010 at 10:52 AM, Stéphane Ducasse <
stephane.ducasse at inria.fr> wrote:

>
>
> Begin forwarded message:
>
> > From: Joachim Geidel <joachim.geidel at onlinehome.de>
> > Date: May 20, 2010 6:31:51 PM GMT+02:00
> > To: <pharo-users at lists.gforge.inria.fr>
> > Subject: [Pharo-users] Flushing the VM method cache?
> > Reply-To: A friendly place where any question about pharo is welcome <
> pharo-users at lists.gforge.inria.fr>
> >
> > Hello all,
> >
> > The software I am working on generates classes on the fly, and discards
> > those classes when they are no longer needed. The class library is
> > cross-platform, i.e. it exists for Dolphin and VisualWorks, and I am
> > currently porting it to Pharo.
> >
> > In Dolphin, it is necessary to flush the VM's method cache after
> discarding
> > all the dynamically generated classes, because the method cache holds
> > references to the classes which prevent them from being garbage
> collected.
> > For VisualWorks, I have adopted this, although I am not quite sure if
> it's
> > actually needed there.
> >
> > In the Pharo 1.0 image, I haven't found a method for flushing the VM's
> > method cache in one go, there only seems to be Behavior>>flushCache.
> >
> > What I would like to know is:
> > - Does the VM method cache of the Squeak VM hold references to classes
> which
> > prevent an obsolete class from being garbage collected? If this is not
> the
> > case, I don't need to flush anything.
> > - If flushing the cache is advisable, is Behavior>>flushCache the only
> way
> > to do this? I would have to pick up all the obsolete classes and iterate
> > over them in that case.
> >
> > Thanks in advance!
> > Joachim Geidel
> >
> >
> >
> > _______________________________________________
> > Pharo-users mailing list
> > Pharo-users at lists.gforge.inria.fr
> > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users
>
>
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