[Async-sig] async_stagger: Happy Eyeballs implementation in pure asyncio

[twisteroid ambassador]

Sure, I should be able to massage the code into asyncio. Probably will
need substantial help on writing any tests, though.

On Tue, May 15, 2018 at 2:29 AM, Yury Selivanov <yselivanov at gmail.com> wrote:
> On May 13, 2018, 9:35 AM -0400, Guido van Rossum <guido at python.org>, wrote:
>
> Yury,
>
> This looks like good work.Would it make sense to add this to asyncio in 3.8?
>
>
>
> Yes, it is solid.  I'd like to see this in asyncio; specifically, I suggest
> to add a keyword-only argument to loop.create_connection &
> asyncio.open_connection to use happy eyeballs (off by default). Exposing the
> "staggered_race()" helper function might also be a good idea, I'm just not
> super happy with the name.
>
> Twistero, would you be interested in submitting a PR?
>
> Yury
>