From: Charles Oliver Nutter <charles.nutter@...>
Date: 2007-08-28T00:17:53+09:00
Subject: Re: Fibers in Ruby 1.9?

Yukihiro Matsumoto wrote:
> Hi,
> 
> In message "Re: Fibers in Ruby 1.9?"
>     on Wed, 22 Aug 2007 16:12:09 +0900, David Flanagan <david@davidflanagan.com> writes:
> 
> |Can anyone (Sasada-san?, Matz?) explain Fiber?  How likely is this to 
> |remain in the final version?  And what about these new external iterator 
> |  methods that have appeared in Enumerator?
> 
> It is still hot topic among core developers.  But fibers (and external
> iterators) are likely to remain in the final 1.9, more likely than
> continuations.

Is there any documented specification for Fibers yet? I've got basic 
Fibers working in JRuby using native threads (first two tests in your 
test_fiber pass), but I'm not clear on the semantics of a few methods. I 
also don't have it working for a "normal" thread to participate as a 
fiber (i.e. Fiber.current only works within an explicitly-created fiber 
at the moment).

There are also some interesting questions I have to resolve regarding 
fibers in a concurrent native-threaded VM.

Pointers to documentation would be appreciated :)

- Charlie