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Re: Ephemerons, self-referentality in weak hashtables

From: Maxime Devos
Subject: Re: Ephemerons, self-referentality in weak hashtables
Date: Mon, 21 Jun 2021 19:15:10 +0200
User-agent: Evolution 3.34.2

Maxime Devos schreef op zo 20-06-2021 om 17:01 [+0200]:
> Christopher Lemmer Webber schreef op di 18-05-2021 om 11:46 [-0400]:
> > Hello,
> > 
> > I'm finally taking some time to port Goblins to Guile, in-between other
> > tasks anyway.  In Goblins there is a weak hashtable that maps current
> > actor references to their current behavior.  I found that for
> > self-referential actors, I needed ephemerons for GC stuff to work right.
> [bla bla on how this could be implemented in Guile]

This doesn't work because there is nothing preventing the
'value' from being freed. Trying to fix that now, using
the example implementation of "weak maps" in libgc.


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