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Re: [RFC] automatically retrying network connections

From: Jimmy Yuen Ho Wong
Subject: Re: [RFC] automatically retrying network connections
Date: Mon, 23 Jul 2018 00:24:19 +0100

On Sun, Jul 22, 2018 at 5:44 PM, Michael Albinus <address@hidden> wrote:
> Jimmy Yuen Ho Wong <address@hidden> writes:
>> The latter, parellel requests, and then join the results when they all
>> come back. I've come up with some bastardization of MapReduce now, but
>> this would be a lot nicer if Emacs had something like
>> https://github.com/chuntaro/emacs-promise built in, so I can combine
>> it with a generator to emulate async/await semantics.
> Emacs has threads. So you might do something like
> (let (threads result)
>   ;; Create a thread per request.
>   (setq threads
>         (mapcar
>          (lambda (request)
>            (make-thread
>             (lambda () <do your request>))))
>          <all-requests>)
>   ;; Collect the results.
>   (thread-yield)
>   (dolist (thread threads result)
>     (setq result (cons (thread-join thread) result))))
> Best regards, Michael.

Every `thread-join` blocks, isn't it basically the same as a generator?

If nobody objects, I'm just going to use a generator for now, and see
if I can get the emacs-promise author to donate it to the core.

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