Re: RFC 178 (v2) Lightweight Threads

[Steven W McDougall]

> I think there may be a necessity for more than just a work area to be
> non-shared.  There has been no meaningful discussion so far related to
> the fact that the vast majority of perl6 modules will *NOT* be threaded,
> but that people will want to use them in threaded programs.  That is a
> non-trivial problem that may best be solved by keeping the entirety of
> such modules private to a single thread.  In that case the optree might
> also have to be private, and with that and private work area it looks
> very much like a full interpreter to me. 

RFC 1 proposes this model, and there was some discussion of it on
perl6-language-flow. 

RFC 178 argues against it, under DISCUSSION, Globals and Reentrancy.


- SWM