Re: boost.spawn: review requested

From: Glen Fernandes (glen.fernandes_at_[hidden])
Date: 2021-11-29 17:08:34

On Mon, Nov 29, 2021 at 11:30 AM Vinnie Falco wrote:
> Upon reviewing Boost.Coroutine2, Boost.Fiber, and taking another look
> at Boost.Spawn, I believe you are correct.
>
> We have a problem with not being able to deprecate Boost.Coroutine
> because of Asio. The Asio author is silent on pull requests and
> emails. Boost.Spawn appears to be a mechanism for facilitating
> progress on this matter, in a fashion similar to adding an improved
> string_view to Boost.Utility.
>
> In light of this, I endorse Boost.Spawn for review.

Boost.Coroutine is deprecated, but cannot be removed because of Asio.
The discussion above implies that Boost.Spawn allows Boost.Coroutine
to be removed  - but I don't understand how because Boost.Asio still
depends on Boost.Coroutine

And Boost.Asio cannot depend on Boost.Spawn since the latter depends
on Boost.Asio, no? According to Oliver's e-mail above Spawn uses
io_context from Asio, and that would result in a dependency cycle.

What am I missing?

Glen