From: Olivier Dion via General Guile related discussions <guile-user@gnu.org>
To: Chris Vine <vine24683579@gmail.com>, guile-user@gnu.org
Subject: Re: Question about an error with ports
Date: Fri, 11 Mar 2022 12:47:26 -0500 [thread overview]
Message-ID: <874k44bcup.fsf@laura> (raw)
In-Reply-To: <20220311172650.aeab7bf504b38992196e0141@gmail.com>
On Fri, 11 Mar 2022, Chris Vine <vine24683579@gmail.com> wrote:
> On Fri, 11 Mar 2022 09:58:59 -0500
> Olivier Dion <olivier.dion@polymtl.ca> wrote:
>> I'm not sure this is related to the functions themself but instead the
>> underlying filedescriptor opened iwth ON_NONBLOCK?
>
> The problem I am referring to is different: it is that delimited
> continuations cannot capture C code and ports are written in C.
> Suspendable specializations, written in pure scheme, of some of
> guile's i/o procedures are therefore provided in
> modules/ice-9/suspendable-ports.scm, which is a file worth reading on
> its own account, and which are brought into effect (by suppressing the
> C-based equivalents) by applying the install-suspendable-ports!
> procedure. If your i/o steps out of this set of primitives (see in
> particular the port-bindings variable in that file) then it is not
> suspendable.
Oh okay! I understand now!
--
Olivier Dion
Polymtl
next prev parent reply other threads:[~2022-03-11 17:47 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-10 1:26 Question about an error with ports Zelphir Kaltstahl
2022-03-10 15:05 ` Olivier Dion via General Guile related discussions
2022-03-10 22:32 ` Zelphir Kaltstahl
2022-03-10 23:46 ` Olivier Dion via General Guile related discussions
2022-03-11 12:05 ` Chris Vine
2022-03-11 14:58 ` Olivier Dion via General Guile related discussions
2022-03-11 17:26 ` Chris Vine
2022-03-11 17:47 ` Olivier Dion via General Guile related discussions [this message]
2022-03-11 18:13 ` Chris Vine
2022-03-11 19:48 ` Maxime Devos
2022-03-11 19:49 ` Maxime Devos
2022-03-12 0:10 ` Chris Vine
2022-03-12 0:27 ` Chris Vine
2022-03-11 12:11 ` Maxime Devos
2022-03-11 15:06 ` Olivier Dion via General Guile related discussions
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