From: Jacob Repp <jacobrepp@...>
Date: 2006-02-19T03:59:53+09:00
Subject: Hello, and a question about finding a defined Class from C

First of all I would like to say Hello! I am new to Ruby programming
having just started a few days ago. I have been watching the ruby
language with interest for a number of years now but finally got the
interest to dive in. I must say it has been an absolute joy.

If this is the wrong list for a question of this type I would be happy
to post it elsewhere.

My first project was a UDP client/server which went well up until I
ran the problem of blocking kernel calls. I have used the 'io/wait'
extension which works nicely for simple purposes but for fun I've
written an extension for Win32 IO Completion Ports.

I have the binding code written but currently I cannot get a VALUE
representing the TCPSocket Class object. I'm trying to define the
methods async_send and async_read in the TCPSocket class currently as
a test.


    id = rb_intern("TCPSocket");
    if (rb_const_defined(rb_cObject, id))
    {
         cTCPSocket = rb_const_get(rb_cObject, id);
         if (TYPE(cTCPSocket) != T_CLASS) {
             rb_raise(rb_eTypeError, "%s is not a class", "TCPSocket");
         }

         rb_define_method(cTCPSocket, "async_send", rb_async_send, 2);
         rb_define_method(cTCPSocket, "async_recv", rb_async_recv, 2);
    }
    else
    {
        rb_raise(rb_eTypeError, "class 'TCPSocket' was not defined you
must require 'socket'");
    }



When I execute the code:

require 'socket'
puts Object.constants

I see the constant TCPSocket is defined.