[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: FFI again
From: |
Stephen J. Turnbull |
Subject: |
Re: FFI again |
Date: |
Mon, 07 Oct 2013 13:34:03 +0900 |
Stefan Monnier writes:
> > libxml, maybe. libgnutls I would continue to provide a dedicated
> > wrapper for. It's very tricky to get the Lisp-to-C type matching
> > robust in an FFI, and if there's a problem in the FFI you probably
> > break all existing modules by fixing it. In the meantime, if the FFI
>
> IIUC this is the kind of problem I was referring to, which would be
> mostly avoided by using an FFI system based on hand-written C wrappers:
> you don't have to export to Lisp all the C-level details.
That's not FFI. Are you confusing runtime loading of DSOs with a
foreign function interface (FFI)? FFI means you can write bindings to
non-Lisp libraries in Lisp, rather than providing the ABI Lisp expects
using code in some other language. The library called need not be
dynamically loaded, but in a dynamic language like Lisp, that's
obviously a very useful property.
XEmacs (and I believe SXEmacs) also has a *separate* facility for
dynamically loading C (and maybe C++?) modules (conventionally given
the extension .ell) with hand-written wrappers, written by J. Johnston
with loads of additional work by Jerry James and a few others. This
integrates such modules with the feature system (`provide' and
`require').
Both facilities are useful but they are different, serving somewhat
different use cases.
- FFI again, Stefan Monnier, 2013/10/05
- Re: FFI again, joakim, 2013/10/05
- Re: FFI again, Stefan Monnier, 2013/10/05
- Re: FFI again, joakim, 2013/10/05
- Re: FFI again, Stefan Monnier, 2013/10/06
- Re: FFI again, Eli Zaretskii, 2013/10/06
- Re: FFI again, Stefan Monnier, 2013/10/06
- Re: FFI again, Eli Zaretskii, 2013/10/06
- Re: FFI again, Stephen J. Turnbull, 2013/10/06
- Re: FFI again, Stefan Monnier, 2013/10/06
- Re: FFI again,
Stephen J. Turnbull <=
- Re: FFI again, Stefan Monnier, 2013/10/07
- Re: FFI again, Andy Moreton, 2013/10/07
- Re: FFI again, Stefan Monnier, 2013/10/07
- Re: FFI again, Eli Zaretskii, 2013/10/08
- Re: FFI again, Stephen J. Turnbull, 2013/10/07
- Re: FFI again, Richard Stallman, 2013/10/07
- Re: FFI again, Stephen J. Turnbull, 2013/10/08
- Re: FFI again, Eli Zaretskii, 2013/10/08
Re: FFI again, Eli Zaretskii, 2013/10/05
Re: FFI again, Daniel Colascione, 2013/10/05