On Wed, 01 Feb 2017 13:11:21 -0800, j...@gellyfish.co.uk wrote:
> With 6.d.PREVIEW the simplest code for IO::Socket::Async mis-behaves:
>
> use v6.d.PREVIEW;
>
> react {
> whenever IO::Socket::Async.listen('localhost', 3333) -> $conn {
> whenever $conn.Supply(:bin) -> $buf {
> await $conn.write: $buf;
> $conn.close;
> }
> }
> }
>
> Gives rise to:
>
> Unhandled exception in code scheduled on thread 7
> Attempt to unlock mutex by thread not holding it
>
> After the second connection every time. I noticed this when testing
> HTTP::Server::Tiny.
>
> This is Rakudo version 2017.01-132-g97359ae built on MoarVM version
> 2017.01-25-g70d4bd5
Fixed now, and test coverage of this, and the deeper underlying issue, is in
S17-promise/nonblocking-await.t.
