From: Han-Wen <hanwen@cs.uu.nl>
Cc: guile-devel@gnu.org
Subject: Re: gen gc
Date: Thu, 18 Jul 2002 01:12:38 +0200 [thread overview]
Message-ID: <15669.63974.973133.308661@blauw.xs4all.nl> (raw)
In-Reply-To: <871ya2ezjo.fsf@zagadka.ping.de>
mvo@zagadka.ping.de writes:
> Han-Wen <hanwen@cs.uu.nl> writes:
>
> > How is this supposed to portable to GenGC?
> >
> > SCM_DEFINE (scm_object_address, "object-address", 1, 0, 0,
> > (SCM obj),
> > "Return an integer that for the lifetime of @var{obj} is uniquely\n"
> > "returned by this function for @var{obj}")
> >
> > This is used in some of the goops code -- should I retain it?
>
> It would be cool if you could fake it. It doesn't need to be the real
> memory address of the object, just a unique integer.
?
What if I can't? Memory cells are going to move around. I don't see a
way to generate a unique number without making some kind of table for
objects subjected to object-address.
Btw, I can imagine that internal hash tables might use the address of
a cell as a source for a hash index. Does that happen anywhere?
--
Han-Wen Nienhuys | hanwen@cs.uu.nl | http://www.cs.uu.nl/~hanwen
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next prev parent reply other threads:[~2002-07-17 23:12 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-17 21:59 gen gc Han-Wen
2002-07-17 22:54 ` Marius Vollmer
2002-07-17 23:12 ` Han-Wen [this message]
2002-07-18 12:08 ` Miroslav Silovic
2002-07-18 12:08 ` Han-Wen Nienhuys
2002-07-19 3:59 ` Rob Browning
2002-07-19 9:39 ` Han-Wen
2002-07-19 15:40 ` Rob Browning
2002-07-19 19:07 ` Tom Lord
2002-07-19 21:07 ` Han-Wen Nienhuys
2002-07-19 21:32 ` Rob Browning
2002-07-19 22:33 ` Han-Wen
2002-07-19 23:31 ` Rob Browning
2002-07-19 22:58 ` Marius Vollmer
2002-07-18 16:00 ` Dirk Herrmann
2002-07-18 16:21 ` Han-Wen Nienhuys
2002-07-19 22:55 ` Marius Vollmer
2002-07-20 8:06 ` Neil Jerram
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