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Re: entering and leaving guile mode, and GC stack protection

From: Ludovic Courtès
Subject: Re: entering and leaving guile mode, and GC stack protection
Date: Fri, 14 Aug 2009 09:58:18 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux)


Andy Wingo <address@hidden> writes:

> On Thu 06 Aug 2009 18:30, Ken Raeburn <address@hidden> writes:
>> On Aug 5, 2009, at 10:06, I wrote:
>>> (3) My four-year-old comments on scm_enter/leave_guile, recorded in
>>> threads.c around line 300, still stand....  Those functions really
>>> ought to go away.  At least they're confined to one file, now.  Some
>>> of it looks a little messy, but I can probably get rid of some of  the
>>> uses....
>> I've made a bit of progress on this.
> The patches look good to me; my only wonder is what relation they have
> to the BDW-GC branch Ludovic was working on. If BDW will land before
> 2.0, then perhaps all this mess can go away (wishful thinking);
> otherwise we should apply it now (after the release). Ludovic? :)

Exactly.  I've been meaning to reply to this thread because of this.

These functions don't do much in the BDW-GC branch:

Likewise, `scm_without_guile ()' does a `GC_do_blocking ()', but in many
cases `scm_without_guile ()' is not needed because BDW-GC doesn't rely
on cooperation from all threads to work.

And yes, I do hope to have it part of 2.0, but I haven't taken the time
to update it lately.


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