From: Eli Zaretskii <eliz@gnu.org>
To: Noam Postavsky <npostavs@gmail.com>
Cc: michael.albinus@gmx.de, emacs-devel@gnu.org
Subject: Re: Return value of finished threads
Date: Fri, 20 Jul 2018 20:31:52 +0300 [thread overview]
Message-ID: <83tvotzud3.fsf@gnu.org> (raw)
In-Reply-To: <CAM-tV--6J8ynCoZ19tQAfPdvkGWOVbNeLfTOrYwnc_BCF9+ULQ@mail.gmail.com> (message from Noam Postavsky on Fri, 20 Jul 2018 12:17:46 -0400)
> From: Noam Postavsky <npostavs@gmail.com>
> Date: Fri, 20 Jul 2018 12:17:46 -0400
> Cc: Emacs developers <emacs-devel@gnu.org>
>
> (require 'thunk)
> (defmacro thunk-delay-in-thread (&rest body)
> (declare (debug body))
> (let ((result-var (make-symbol "result")))
> `(let* ((,result-var nil)
> (thread (make-thread
> (lambda ()
> (setq ,result-var ,(macroexp-progn body))))))
> (thunk-delay (progn (thread-join thread) ,result-var)))))
>
> (let ((thunks
> (mapcar
> (lambda (x) (thunk-delay-in-thread
> (message "computing square of %d" x) (* x x)))
> (number-sequence 1 10))))
> ;; Run this thread first, just to make things more interesting.
> (thunk-force (nth 5 thunks))
> ;; Get all the values.
> (mapcar #'thunk-force thunks))
This sounds gross to me, FWIW.
next prev parent reply other threads:[~2018-07-20 17:31 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-20 14:56 Return value of finished threads Michael Albinus
2018-07-20 15:08 ` Eli Zaretskii
2018-07-20 15:15 ` Michael Albinus
2018-07-20 16:17 ` Clément Pit-Claudel
2018-07-20 17:25 ` Eli Zaretskii
2018-07-20 16:17 ` Noam Postavsky
2018-07-20 17:31 ` Eli Zaretskii [this message]
2018-07-21 9:28 ` Michael Albinus
2018-07-20 18:14 ` Tom Tromey
2018-07-21 9:39 ` Michael Albinus
2018-07-21 13:07 ` Tom Tromey
2018-07-21 13:16 ` Michael Albinus
2018-07-21 14:19 ` Tom Tromey
2018-07-21 14:33 ` Michael Albinus
2018-07-21 18:16 ` Tom Tromey
2018-07-21 19:33 ` Michael Albinus
2018-07-21 21:39 ` Tom Tromey
2018-07-22 10:02 ` Michael Albinus
2018-07-21 22:49 ` Brett Gilio
2018-07-22 2:18 ` Tom Tromey
2018-07-23 18:02 ` Brett Gilio
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