Hi Matt,
On Thu, Jun 13, 2013 at 10:38 AM, Matthew Mondor <mm_li...@pulsar-zone.net>
wrote:
> On Thu, 13 Jun 2013 10:30:33 +0900
> Dietrich Bollmann <dietr...@formgames.org> wrote:
>
> > Is there a way to hook into the CLOS object destruction process initiated
> > by the garbage collector in order to call the C++ destructor when the
> CLOS
> > object is garbage collected?
>
> It is possible to register finalizers, although they may only execute
> when the GC actually discards the objects, thus it cannot execute
> predictably (see http://ecls.sourceforge.net/new-manual/ch28s05.html).
>
Thank you very much for your answer!
And sorry for writing three unnecessary emails! I found your reply just
now - after writing my second email :(
On Thu, Jun 13, 2013 at 10:38 AM, Matthew Mondor <mm_li...@pulsar-zone.net>
wrote:
>
> If you need more performance and predictability, you may want to
> provide some WITH-* style macros internally using UNWIND-PROTECT as well
>
Thanks for this as well!
I will think about it - and thank you for providing this extra information
which gives my question some sense at least :)
All the best, Dietrich
On Thu, Jun 13, 2013 at 10:38 AM, Matthew Mondor
<mm_li...@pulsar-zone.net>wrote:
> On Thu, 13 Jun 2013 10:30:33 +0900
> Dietrich Bollmann <dietr...@formgames.org> wrote:
>
> > CLOS relies on a garbage collector to destruct objects which are not
> > referenced anymore, so no explicit destructor method is foreseen.
> >
> > However, when wrapping a C++ class into a CLOS class, the destructor of
> the
> > C++ object has to be called when the CLOS object is garbage collected to
> > free the foreign object.
> >
> > Is there a way to hook into the CLOS object destruction process initiated
> > by the garbage collector in order to call the C++ destructor when the
> CLOS
> > object is garbage collected?
>
> It is possible to register finalizers, although they may only execute
> when the GC actually discards the objects, thus it cannot execute
> predictably (see http://ecls.sourceforge.net/new-manual/ch28s05.html).
>
> If you need more performance and predictability, you may want to
> provide some WITH-* style macros internally using UNWIND-PROTECT as well
> --
> Matt
>
>
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