From: matz@... (Yukihiro Matsumoto)
Date: 2001-05-16T17:25:21+09:00
Subject: [ruby-talk:15260] Re: c-api-question.

Hi,

In message "[ruby-talk:15259] c-api-question."
    on 01/05/16, Erik B�gfors <erik@bagfors.nu> writes:

|So.   How would I call A in ruby and how would the ruby-api-wrapping
|look??  Would it include Proc objects?

It depends on what and how you want to show to Ruby world.
One possibility is something like:

  struct A {
    void (*funcA)();
    void (*funcB)();
  }

  VALUE
  foo_foo()
  {
      struct A *a;
      VALUE obj = Data_Make_Struct(rb_cFoo, struct A, 0, 0, a);

      a->funcA = funcA;
      a->funcB = funcB;

      return obj;
  }

  VALUE
  foo_call(obj)
      VALUE obj;
  {
      struct A *a;
      VALUE obj = Data_Get_Struct(obj, struct A, a);

      if (something)
        funcA(param);
      else
        funcB(param);

  }

							matz.