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From: Mark H Weaver <mhw@netris.org>
To: Marko Rauhamaa <marko@pacujo.net>
Cc: guile-user@gnu.org
Subject: Re: Guile: passing a file descriptor
Date: Sat, 11 Oct 2014 13:40:38 -0400	[thread overview]
Message-ID: <87r3yeijxl.fsf@yeeloong.lan> (raw)
In-Reply-To: <877g073v5o.fsf@elektro.pacujo.net> (Marko Rauhamaa's message of "Sat, 11 Oct 2014 10:47:15 +0300")

Marko Rauhamaa <marko@pacujo.net> writes:

> A PF_UNIX socket can be used to pass an open file descriptor between
> processes. However, the relevant control message seems to be missing in
> Guile's POSIX facilities (send only accepts a data message).

Indeed, we lack that functionality in core Guile.

> Am I mistaken, and are there any plans to add control message support to
> Guile's library?

I'm not aware of any plans to add it, but if we can agree on an API and
someone contributed a suitable implementation, I don't see why we
couldn't add it.

In the meantime, it's easy to extend Guile with your own bits of C code.

  http://www.gnu.org/software/guile/manual/html_node/C-Extensions.html

You could also probably use our Dynamic FFI to do the job entirely from
Scheme, although we don't have any automatic way of dealing with C
preprocessor macros, so they would probably have to be hard-coded.

  http://www.gnu.org/software/guile/manual/html_node/Foreign-Function-Interface.html

     Mark



  reply	other threads:[~2014-10-11 17:40 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-11  7:47 Guile: passing a file descriptor Marko Rauhamaa
2014-10-11 17:40 ` Mark H Weaver [this message]
2014-10-11 22:20   ` Marko Rauhamaa

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