From: matz@... (Yukihiro Matsumoto)
Date: 2001-03-16T12:11:44+09:00
Subject: [ruby-talk:12707] Re: RCR: Public C APIs for accessing File objects

Hi,

In message "[ruby-talk:12702] RCR: Public C APIs for accessing File objects"
    on 01/03/16, "Lyle Johnson" <ljohnson@resgen.com> writes:

|Since there was no response to my question a few days back I'm assuming that
|there is no officially approved way for C/C++ extension code to get at the
|FILE* pointer(s) embedded in a Ruby file object. So consider this an
|official request for the same ;)

It's OK for you to use the stuffs from <rubyio.h>.

  #include "ruby.h"
  #include "rubyio.h"

  foo(VALUE obj)
  {
      OpenFile *fptr;
      FILE *f;

      Check_Type(obj, T_FILE);
      GetOpenFile(obj, fptr);
      rb_io_check_readable(fptr);
      f = GetReadFile(fptr);

      ....
  }

							matz.