[swift-evolution] [Concurrency] Reactive streams as building blocks for actors etc.

[Howard Lovatt]

I think this is what you mean by parallel forEach, I have just expanded the
wording below to be clearer (for myself primarily).

The Java equivalent of a `LazySequenceProtocol` has a parallel method that
returns a parallel lazy sequence, so that operations like map, reduce,
filter, and forEach all run in parallel. I have used this a lot to speed up
code and it would be another great addition.

  -- Howard.

On 29 August 2017 at 16:14, Chris Lattner <clattner at nondot.org> wrote:

>
> On Aug 28, 2017, at 6:56 PM, Howard Lovatt via swift-evolution <
> swift-evolution at swift.org> wrote:
>
> Many of the currently popular server side frameworks are switching to
> Reactive Streams:
>
>     http://en.wikipedia.org/wiki/Reactive_Streams#Adoption
>
> for their underlying communication, including Akka. Reactive Streams are
> also to become builtin to Java, as the Flow class, in version 9.
>
> Would it be wise if Swift 5 also builtin Reactive Stream protocols and
> built its Actor implementation etc. on top of this protocol?
>
>
> In MHO, yes, it would be great to build a reactive stream abstraction as
> well.   I agree with you that this is an effectively “obvious” part of the
> eventual model, and that we will almost certainly end up building it.  It
> would also make sense to have foreach over an async sequence be itself
> implicitly async.  I haven’t sketched that out, but it seems like a few
> straight-forward steps beyond what is in the manifesto doc.
>
> I’ve added a mention of these to the doc, thanks!
> https://gist.github.com/lattner/31ed37682ef1576b16bca1432ea9f7
> 82#further-extensions
>
> -Chris
>
>
>
>   -- Howard.
>
> More info on Reactive streams:
>
>     https://github.com/reactive-streams/reactive-streams-jvm/
> blob/v1.0.1/README.md#specification
>
>     http://bryangilbert.com/post/code/scala/akka-reactive-streams/
>
>
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>
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