Re: Hack the (init) system!

[Christopher Allan Webber <cwebber@dustycloud.org>]

Andy Wingo writes:

> On Fri 25 Sep 2015 23:04, Christopher Allan Webber <cwebber@dustycloud.org> writes:
>
>> I wonder if it's about time that Guile get something along the lines of
>> a well-supported, general event loop system?
>
> I think Guile needs user-space threads, implemented on top of delimited
> continuations.  With threads, you don't need to invert control in your
> program.  Racket takes this approach as well.
>
> To get there we need to expose port buffers to Scheme, mark all file
> descriptors as nonblocking, and cause EWOULDBLOCK to suspend the current
> green thread.  I had a prototype working a while back on the
> wip-ethreads branch, but you don't want to introduce a separate port
> type -- really you want to have this work on all ports, so that's the
> hacking that's needed.
>
> I'll try to get out a 2.2 prerelease in the next week or so --
> everything is up to date now, finally, I just have a pending patch to
> make the stack grow down instead of up so we can use native CALL
> instructions in some future.  Works in progress...
>
> A

Sounds great!  I'm looking forward to this and Guile 2.2 :)