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From: Andy Wingo <wingo@pobox.com>
To: Ken Raeburn <raeburn@raeburn.org>
Cc: guile-devel Development <guile-devel@gnu.org>
Subject: Re: thread safe functions
Date: Mon, 23 May 2011 22:38:36 +0200	[thread overview]
Message-ID: <m3k4dhp2yb.fsf@unquote.localdomain> (raw)
In-Reply-To: <293BAADA-EF04-4983-A628-1355BDF964ED@raeburn.org> (Ken Raeburn's message of "Tue, 15 Feb 2011 12:18:50 -0500")

On Tue 15 Feb 2011 18:18, Ken Raeburn <raeburn@raeburn.org> writes:

> On Feb 10, 2011, at 17:19, Andy Wingo wrote:
>>> procproc.c: There's a mutex to protect overrides, but it looks like
>>> set-procedure-property! doesn't use it correctly; it should look more
>>> like set-object-property! does.
>> 
>> I'm going to punt on this one, since it cannot access the hash table
> in
>> an inconsistent state, and I don't care enough about what happens when
>> multiple threads start changing the same procedure property (a fairly
>> legacy interface) at once.  Furthermore there is always (assq-set!
>> (procedure-properties foo) 'bar) to contend with...
>
> It doesn't need to be the same property; I think different threads
> setting different new properties on a procedure in parallel may lose.

Indeed.  Fixed.

Andy
-- 
http://wingolog.org/



  reply	other threads:[~2011-05-23 20:38 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20100805112743.GA1671@securactive.net>
     [not found] ` <m3vd77vrs0.fsf@unquote.localdomain>
2010-08-22  0:57   ` thread safe functions Ken Raeburn
2010-08-28 19:20     ` Andy Wingo
2010-08-29  1:33       ` Ken Raeburn
2011-02-10 22:19         ` Andy Wingo
2011-02-15 16:00           ` Ken Raeburn
2011-05-23 20:25             ` Andy Wingo
2011-02-15 17:18           ` Ken Raeburn
2011-05-23 20:38             ` Andy Wingo [this message]
2011-05-24 20:57           ` Andy Wingo

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