Not sure if it's relevant here but last time I checked there is an issues
with await and Proc::Async on Mac.
RT #125758 for example which looks similar to this.
On Wed, 27 Apr 2016 at 7:08 AM, Will Coleda via RT <
perl6-bugs-follo...@perl.org> wrote:
> On Fri Sep 05 14:44:06 2014, elizabeth wrote:
> > (since leont has been so busy with other stuff, I thought to report
> > the problem he found)
> >
> > 12:11 * leont suspects he's observing Promise.allof spinlocking or
> > some such. 100% CPU usage, but no input is coming in :-/
> > 12:19 lizmat leont: could you gist that ?
> > 12:22 leont Would need to reduce it first, but sure
> > 13:14 leont My spinlock seems to have gone away when I await()ed
> > in the same thread that created the Proc::Async…
> > 13:16 lizmat leont: interesting datapoint :-)
> > 13:16 wonder what jnthn would want to say about that :-)
> > 13:22 leont perl6 -e 'my $waiter =
> > Proc::Async.new(:path($*EXECUTABLE), :args(["helper.pl"])).start;
> > await start { await $waiter };'
> > 13:23 Let's make that easier: perl6 -e 'my $waiter =
> > Proc::Async.new(:path("echo"), :args(<Hello World>)).start; await
> > start { await $waiter };'
> > 13:29 moritz leont++ # golfing
> > 13:30 leont: could you please submit that to
> > rakudobugperl.org?
> > 13:30 leont Sure
>
> This seems to work with no issue here. Is this ticket closable?
>
> $ perl6 -e 'my $waiter = Proc::Async.new(:path("echo"), :args(<Hello
> World>)).start; await start { await $waiter };'
> Hello World
>
> --
> Will "Coke" Coleda
>
