From: Matthew Metnetsky <met@...>
Date: 2008-02-21T02:04:52+09:00
Subject: embedding ruby | marking and sweeping wrapped structs


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All,

I've managed to get ruby embedded and executing everything the way I need f=
or
the most part without much problem. But I am currently hitting a wall and
merely trying different methods isn't getting me anywhere. Each script that=
 I
load needs to be run in as fresh a state as possible, and once it's done I
need to make sure everything is released before loading the next script.=20

The ruby file is being loaded like so:

	rb_load_protect("test.rb", 0, &status);

On success I look for the class I'm trying to instantiate and grab a copy of
it and then register it.

	VALUE obj =3D rb_class_new_instance(...)

	rb_gc_register_address(&obj);

After I've called the appropriate methods, I unregister it and tell the GC =
to
run:

	rb_gc_unregister_address(&obj);

At this point I would like to force "obj" to be marked, and freed. But I am
not sure what to do as rb_gc() does mark it, but it never gets freed.

It's important to note that `TYPE(obj) =3D=3D T_DATA`, and I cannot get it =
to be
called until ruby_finalize() is issued at the VERY end of the program.=20

As such, is there a way to force the sweeping of this object now that I know
it is done? In fact I would like to loop back to rb_load_protect(..) to
knowing that as much of the data as possible has been removed, but how?

Any and all help will be greatly appreciated!

Thanks in advance,

~ Matthew

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