From: Richard Dale <Richard_Dale@...>
Date: 2004-10-04T21:34:53+09:00
Subject: Re: Trapping 'exit from ruby world' in a C extension

Richard Dale wrote:

> I've looking into a problem with the QtRuby extension when it occasionally
> crashes on exit. I think it's caused be ruby finalizing the objects in an
> arbitrary order. What I'd like to be able to do is to have a hook so that
> I can call the C++ destructor on the top level application instance,
> KApplication while the ruby world is still complete. I've found a function
> called 'rb_trap_exit()', but I'm not sure if that's intended for this use.
> 
> Here is the top of the crash trace. rb_gc_call_finalizer_at_exit() has
> probably deleted some things already before ~x_KApplication() is called
> and which were still needed.
I've actually managed to solve this problem a different way now, by deleting
the QApplication or KApplication C++ instance after they return from the
top level exec() call and before the ruby program exits.

-- Richard