guile-1.8 question

guile-1.8 question

[Stanislav Ievlev]

Greetings!

There are several functions exists to convert file descriptor into guile port:
* scm_fdes_to_ports - search for fdes in already opened ports
* scm_fdes_to_port - looks like internal function, not documented, but
exists in header files.
* scm_fdopen - looks like public function.

What is the difference between scm_fdes_to_port and scm_fdopen? What
function should I use?

Have you any plans to made this API simpler?

--
With best regards
Stanislav Ievlev.

Re: guile-1.8 question

[Stanislav Ievlev]

As I understand you should mark scm_fdes_to_port as a deprecated and
don't use it in own code (e.g. in socket.c).


2009/10/14 Stanislav Ievlev <stanislav.ievlev@gmail.com>:
> Greetings!
>
> There are several functions exists to convert file descriptor into guile port:
> * scm_fdes_to_ports - search for fdes in already opened ports
> * scm_fdes_to_port - looks like internal function, not documented, but
> exists in header files.
> * scm_fdopen - looks like public function.
>
> What is the difference between scm_fdes_to_port and scm_fdopen? What
> function should I use?
>
> Have you any plans to made this API simpler?
>
> --
> With best regards
> Stanislav Ievlev.
>

Re: guile-1.8 question

[Stanislav Ievlev]

2009/10/14 Stanislav Ievlev <stanislav.ievlev@gmail.com>:
> As I understand you should mark scm_fdes_to_port as a deprecated and
> don't use it in own code (e.g. in socket.c).
Ooops, I'm wrong.
scm_fdes_to_port works is like "scm_C_fdopen", however function name
is not good ;)

Re: guile-1.8 question

[Andy Wingo]

On Wed 14 Oct 2009 09:33, Stanislav Ievlev <stanislav.ievlev@gmail.com> writes:

> 2009/10/14 Stanislav Ievlev <stanislav.ievlev@gmail.com>:
>> As I understand you should mark scm_fdes_to_port as a deprecated and
>> don't use it in own code (e.g. in socket.c).
> Ooops, I'm wrong.
> scm_fdes_to_port works is like "scm_C_fdopen", however function name
> is not good ;)

The ports C interface is rather crufty, as you have found :) Do you have
any suggestions, or a patch? Keep in mind that we need to maintain
backwards compatibility with these interfaces.

Cheers,

Andy
-- 
http://wingolog.org/

Re: guile-1.8 question

[Stanislav Ievlev]

2009/10/15 Andy Wingo <wingo@pobox.com>:
> The ports C interface is rather crufty, as you have found :) Do you have
> any suggestions, or a patch? Keep in mind that we need to maintain
> backwards compatibility with these interfaces.

What do you think about documented additional function like this?
--
SCM
scm_c_fdopen(int fdes, const char* modes)
{
 return scm_i_fdes_to_port (fdes, scm_mode_bits (modes), SCM_BOOL_F);
}
--

You can also use in libguile source files scm_i_fdes_to_port  instead
of scm_i_fdes_to_port, and mark scm_fdes_to_port as a deprecated.