From: Nobuyoshi Nakada <nobu@...>
Date: 2007-04-10T09:29:20+09:00
Subject: Re: rb_yield(), break, and C extensions

Hi,

At Mon, 9 Apr 2007 09:40:07 +0900,
Noah Easterly wrote in [ruby-talk:247204]:
> So the original definition of func (which allocated memory, used the
> callback, freed memory, and didn't use ruby.h) won't work, I need to
> divide that into 3 parts (one to alloc, one that uses the callback,
> and one to free), and do something like:

You can use rb_protect() and rb_jump_tag() too.

> static VALUE
> my_meth(VALUE self)
> {
>   MyType * my_type = AllocMyType();
    int status;
    VALUE result = rb_protect(DoStuff, (VALUE)my_type, &status);
    FreeMyType(my_type);
    if (status) rb_jump_tag(status);
    return result;
> }

The way to do all in one function is not provieded.

-- 
Nobu Nakada