From: Robert Roessler <roessler@rftp.com>
To: dmitry grebeniuk <gds-mlsts@moldavcable.com>,
Caml-list <caml-list@inria.fr>
Subject: Re: [Caml-list] A pair of "Interfacing with C" questions
Date: Wed, 20 Jul 2005 22:44:04 -0700 [thread overview]
Message-ID: <42DF3624.3000502@rftp.com> (raw)
In-Reply-To: <8210502975.20050721082753@moldavcable.com>
dmitry grebeniuk wrote:
> Shalom, Robert.
> ...
> 2) int32 -- good enough. No limitations and drawbacks of ints/values,
> but it is boxed.
Thanks, dmitry - but this breaks as soon as the software is recompiled
on a 64-bit implementation (AFAICT). :)
> 3) custom blocks with size sizeof(yourpointertype). I think it is the
> best alternative: you can attach finalization function (and others, if
> you will need) to blocks. In this function you can: a) automatically
> deallocate C-side objects, b) write debug info about objects that are
> not closed properly from Caml-side.
Yes, I use custom blocks when their functionality is needed - but here
I really just want "opaque pointers"... I only need to store them in a
Caml "value" and be able to hand them back across the Caml/C interface
on demand.
Robert Roessler
roessler@rftp.com
http://www.rftp.com
next prev parent reply other threads:[~2005-07-21 5:43 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-21 4:53 Robert Roessler
[not found] ` <8210502975.20050721082753@moldavcable.com>
2005-07-21 5:44 ` Robert Roessler [this message]
2005-07-21 10:21 ` [Caml-list] " Jacques Garrigue
2005-07-21 10:29 ` malc
2005-07-21 11:51 ` Jacques Garrigue
2005-07-22 5:26 ` Robert Roessler
2005-07-22 9:31 ` Alexander S. Usov
2005-07-23 12:14 ` Xavier Leroy
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