From: Lyle Johnson <lyle@...>
Date: 2003-11-26T07:42:11+09:00
Subject: Question about finalizers for extension objects

I'm trying to debug an FXRuby-related problem that only occurs when the 
Ruby interpreter is shutting down.

During this process, the function rb_gc_call_finalizer_at_exit() loops 
over all of the data objects and, for each of those Ruby instances, 
calls the associated C/C++ object's freefunc (or plain old free() if no 
freefunc was defined).

My question is: at the time that this is going on, should I assume that 
the Ruby instances themselves are basically garbage at this point (even 
if their freefunc() hasn't been called yet)? In other words if I'm in 
the freefunc for C++ object A, can I call instance methods on some other 
Ruby object?