Re: Ruby Fibers (was: threads?)

[Stefan O'Rear]

On Fri, Oct 15, 2010 at 01:42:06PM +0200, Leon Timmermans wrote:
> On Wed, Oct 13, 2010 at 1:20 AM, Tim Bunce <tim.bu...@pobox.com> wrote:
> > I've not used them, but Ruby 1.9 Fibers (continuations) and the
> > EventMachine Reactor pattern seem interesting.
> 
> Continuations and fibers are incredibly useful and should be easy to
> implement on parrot/rakudo

Forget Parrot, fibers can be implemented in pure Perl 6.

module Fibers;

my @runq;

sub spawn(&entry) is export {
    push @runq, $( gather entry() );
}

sub yield() is export {
    take True;
}

sub scheduler() is export {
    while @runq {
        my $task = shift @runq;
        if $task {
            $task.shift;
            push @runq, $task;
        }
    }
}

-sorear

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