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From: Xavier Leroy <xavier.leroy@inria.fr>
To: Jakob Lichtenberg <jl@itu.dk>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] camlidl - finalizing cows without COM!
Date: Fri, 26 Apr 2002 10:20:58 +0200	[thread overview]
Message-ID: <20020426102058.B24598@pauillac.inria.fr> (raw)
In-Reply-To: <000901c1e5c1$f47cc130$5ba4389d@redmond.corp.microsoft.com>; from jl@itu.dk on Tue, Apr 16, 2002 at 08:42:53PM -0700

> Hi,
> 
> I have just started hacking in camlidl and for now had a really pleasant
> experience.
> 
> However I really can't find out how to create a finalized object without
> going into COM interfaces.
> 
> Say my underlying C library for manipulating ..... hmmm.. cows  has a
> function that creates and references a new cow, and a function that is used
> to de-reference the cows when they no longer are live:
> 
> typedef int cow;
> cow createAndReferenceCow(void);
> void freeCow(cow);
> 
> Now, when the OCaml structures for some reason decide to garbage collect my
> cow the finalized object should call freeCow......  I have done this a bunch
> of times without the idl interface, but have no clue how to specify this in
> an idl file.  Help!!!

There's a new release of CamlIDL at http://caml.inria.fr/camlidl/
that supports a "finalize" attribute to do just this, e.g.

        typedef [abstract,finalize(freeCow)] int cow;

The release also fixes some minor bugs with error reporting in
presence of import files, and with "const" qualifiers.  (Thanks for
Dmitry Bely for his extensive testing and bug hunting!)

- Xavier Leroy
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      parent reply	other threads:[~2002-04-26  8:22 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-04-17  3:42 Jakob Lichtenberg
2002-04-18 15:30 ` Christopher Quinn
2002-04-19  3:13   ` Jakob Lichtenberg
2002-04-26  8:20 ` Xavier Leroy [this message]

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