From: Andy Wingo <wingo@pobox.com>
To: Chris Vine <chris@cvine.freeserve.co.uk>
Cc: guile-devel@gnu.org
Subject: Re: wip-ports-refactor
Date: Tue, 10 May 2016 16:30:30 +0200 [thread overview]
Message-ID: <87h9e6q92x.fsf@pobox.com> (raw)
In-Reply-To: <20160424120519.2a44127e@bother.homenet> (Chris Vine's message of "Sun, 24 Apr 2016 12:05:19 +0100")
Hi :)
On Sun 24 Apr 2016 13:05, Chris Vine <chris@cvine.freeserve.co.uk> writes:
> on the question of guile's thread implementation, it seems to me to be
> basically sound if you avoid obvious global state. I have had test
> code running for hours, indeed days, without any appearance of data
> races or other incorrect behaviour on account of guile's thread
> implementation. Global state is an issue. Module loading (which you
> mention) is an obvious one, but other things like setting load paths
> don't look to be thread safe either.
I think we have no plans for giving up pthreads. The problem is that
like you say, if there is no shared state, and your architecture has a
reasonable memory model (Intel's memory model is really great to
program), then you're fine. But if you don't have a good mental model
on what is shared state, or your architecture doesn't serialize loads
and stores... well there things are likely to break.
I like to recommend solutions that will absolutely work and never crash.
(They could throw errors, but that doesn't crash Guile.) I can't do
that with threads -- not right now anyway. If you know what you're
doing though, go ahead and use them :)
Andy
next prev parent reply other threads:[~2016-05-10 14:30 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-06 20:46 wip-ports-refactor Andy Wingo
2016-04-07 4:16 ` wip-ports-refactor Christopher Allan Webber
2016-04-12 8:52 ` wip-ports-refactor Andy Wingo
2016-04-13 14:27 ` wip-ports-refactor Christopher Allan Webber
2016-04-12 9:33 ` wip-ports-refactor Andy Wingo
2016-04-14 14:03 ` wip-ports-refactor Ludovic Courtès
2016-04-17 8:49 ` wip-ports-refactor Andy Wingo
2016-04-17 10:44 ` wip-ports-refactor Ludovic Courtès
2016-04-19 8:00 ` wip-ports-refactor Andy Wingo
2016-04-19 14:15 ` wip-ports-refactor Ludovic Courtès
2016-05-10 15:02 ` wip-ports-refactor Andy Wingo
2016-05-10 16:53 ` wip-ports-refactor Andy Wingo
2016-05-11 14:00 ` wip-ports-refactor Christopher Allan Webber
2016-05-11 14:23 ` wip-ports-refactor Ludovic Courtès
2016-05-12 8:15 ` wip-ports-refactor Andy Wingo
2016-04-24 11:05 ` wip-ports-refactor Chris Vine
2016-05-10 14:30 ` Andy Wingo [this message]
2016-05-11 10:42 ` wip-ports-refactor Chris Vine
2016-05-12 6:16 ` wip-ports-refactor Andy Wingo
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