From: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: GC crashes
Date: 07 Dec 2003 21:52:11 -0500 [thread overview]
Message-ID: <jwvfzfw3tzm.fsf-monnier+emacs/devel@vor.iro.umontreal.ca> (raw)
In-Reply-To: <200312080231.LAA12773@etlken.m17n.org>
>> No, it just means we have to change init_fns.
> Then, it seems that moving this:
> Vweak_hash_tables = Qnil;
> to syms_of_fns is the easiest solution.
Sounds right. And we should rename it as well because it's not
a lisp variable so it shouldn't start with `V'.
>> No, it shouldn't. [ Side note: whether an integer should
>> be considered as "always live" or as "always GC-able" from
>> the point of view of weakness is not obvious. ]
> Ah! I blindly believed that an integer is always GC-able,
> but survives_gc_p (obj) returns 1 if obj is an integer. So
> if we make a composition hash table with :weak t, an element
> of the table always survives GC, thus is never removed. It
That's right.
> doesn't fit my intuition but, I'd like to avoid discussing
> on it for the momemnt.
There's nothing useful to discuss indeed. It's just interesting that it's
a case where the nice theory of "remove if GC-able" needs to be adjusted
for a particular case. We could also decide that int does not
survive_gc_p, but it would be less useful.
> I'll try :weak `key' and check if it really works locally.
> It seems that we can't commit anything for a while anyway.
It shouldn't make any difference in practice.
Stefan
next prev parent reply other threads:[~2003-12-08 2:52 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-24 10:09 GC crashes Werner LEMBERG
2003-11-26 2:03 ` Kenichi Handa
2003-11-28 9:31 ` [mew-int 01653] " Werner LEMBERG
2003-12-01 12:40 ` [mew-int 01661] " Kenichi Handa
2003-12-02 8:31 ` [mew-int 01666] " Werner LEMBERG
2003-12-02 16:25 ` Stefan Monnier
2003-12-02 23:37 ` [mew-int 01671] " Kenichi Handa
2003-12-03 17:25 ` Stefan Monnier
2003-12-03 23:19 ` Kenichi Handa
2003-12-03 23:58 ` [mew-int 01678] " Stefan Monnier
2003-12-04 0:29 ` Stefan Monnier
2003-12-04 1:12 ` Kenichi Handa
2003-12-04 2:21 ` Kenichi Handa
2003-12-04 15:48 ` Stefan Monnier
2003-12-08 2:31 ` Kenichi Handa
2003-12-08 2:52 ` Stefan Monnier [this message]
2003-12-08 5:01 ` Kenichi Handa
2003-12-08 5:16 ` Stefan Monnier
2003-12-08 6:05 ` Kenichi Handa
2003-12-08 6:25 ` Stefan Monnier
2003-12-08 7:14 ` Kenichi Handa
2003-11-26 14:24 ` Stefan Monnier
2003-12-02 7:01 ` Eli Zaretskii
-- strict thread matches above, loose matches on Subject: below --
2004-12-06 14:32 Items in FOR-RELEASE Stefan
2004-12-06 19:52 ` Juri Linkov
2004-12-06 20:12 ` Stefan Monnier
2004-12-06 21:12 ` Juri Linkov
2004-12-06 21:45 ` Stefan Monnier
2004-12-06 22:47 ` GC crashes (Was: Items in FOR-RELEASE) Juri Linkov
2004-12-07 9:37 ` GC crashes Kim F. Storm
2004-12-07 15:54 ` Paul Pogonyshev
2004-12-07 20:46 ` Jan D.
2004-12-07 20:53 ` Nick Roberts
2004-12-08 0:17 ` Paul Pogonyshev
2004-12-08 6:04 ` Jan D.
2004-12-08 7:31 ` Nick Roberts
2004-12-08 17:39 ` Eli Zaretskii
2004-12-08 19:27 ` Nick Roberts
2004-12-08 22:15 ` Richard Stallman
2005-12-14 21:49 Chong Yidong
2005-12-14 23:18 ` David Kastrup
2005-12-14 23:24 ` Chong Yidong
2005-12-14 23:28 ` David Kastrup
2005-12-17 19:52 ` Chong Yidong
2005-12-18 17:15 ` Richard M. Stallman
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