;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (test-workers)
  #:use-module (guix workers)
  #:use-module (ice-9 threads)
  #:use-module (srfi srfi-64))

(test-begin "workers")

(test-equal "enqueue"
  4242
  (let* ((pool   (make-pool))
         (result 0)
         (1+!    (let ((lock (make-mutex)))
                   (lambda ()
                     (with-mutex lock
                       (set! result (+ result 1)))))))
    (let loop ((i 4242))
      (unless (zero? i)
        (pool-enqueue! pool 1+!)
        (loop (- i 1))))
    (let poll ()
      (unless (pool-idle? pool)
        (pk 'busy result)
        (sleep 1)
        (poll)))
    result))

;; Same as above, but throw exceptions within the workers and make sure they
;; remain alive.
(test-equal "exceptions"
  4242
  (let* ((pool   (make-pool 10))
         (result 0)
         (1+!    (let ((lock (make-mutex)))
                   (lambda ()
                     (with-mutex lock
                       (set! result (+ result 1)))))))
    (let loop ((i 10))
      (unless (zero? i)
        (pool-enqueue! pool (lambda ()
                              (throw 'whatever)))
        (loop (- i 1))))
    (let loop ((i 4242))
      (unless (zero? i)
        (pool-enqueue! pool 1+!)
        (loop (- i 1))))
    (let poll ()
      (unless (pool-idle? pool)
        (pk 'busy result)
        (sleep 1)
        (poll)))
    result))

(test-end)
class='path'>path: <a href='/guix/log/?id=56734df9574c228f4975a0862b1a65e83ecc3a68&amp;showmsg=1'>root</a>/<a href='/guix/log/gnu?id=56734df9574c228f4975a0862b1a65e83ecc3a68&amp;showmsg=1'>gnu</a>/<a href='/guix/log/gnu/packages?id=56734df9574c228f4975a0862b1a65e83ecc3a68&amp;showmsg=1'>packages</a>/<a href='/guix/log/gnu/packages/entr.scm?id=56734df9574c228f4975a0862b1a65e83ecc3a68&amp;showmsg=1'>entr.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/entr.scm?id=56734df9574c228f4975a0862b1a65e83ecc3a68'>Collapse</a>)</th><th class='left'>Author</th></tr>
<tr class='logheader'><td><span title='2020-10-08 15:57:32 +0200'>2020-10-08</span></td><td class='logsubject'><a href='/guix/commit/gnu/packages/entr.scm?id=6ad8fc65d4baf5ac624021175dfa625c8fd35fd9'>gnu: entr: Remove erroneous use of DESTDIR.</a></td><td>Tobias Geerinckx-Rice</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/entr.scm (entr)[arguments]: Correctly set PREFIXes.


</td></tr>
<tr class='logheader'><td><span title='2020-10-07 03:21:44 +0200'>2020-10-07</span></td><td class='logsubject'><a href='/guix/commit/gnu/packages/entr.scm?id=a5ed8e0e7ce251f0c0f0f60159c30632c0354b56'>gnu: entr: Cross-compile.</a></td><td>Tobias Geerinckx-Rice</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/entr.scm (entr)[arguments]: Use CC-FOR-TARGET.
Use INPUTS instead of WHICH.
[inputs]: Add non-native bash and coreutils packages.


</td></tr>
<tr class='logheader'><td><span title='2020-10-07 03:21:44 +0200'>2020-10-07</span></td><td class='logsubject'><a href='/guix/commit/gnu/packages/entr.scm?id=16d3630bf4126c8976f6c671b92d1257aa0f3b45'>gnu: entr: Update to 4.6.</a></td><td>Tobias Geerinckx-Rice</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/entr.scm (entr): Update to 4.6.


</td></tr>
<tr class='logheader'><td><span title='2020-01-12 00:19:10 +0100'>2020-01-12</span></td><td class='logsubject'><a href='/guix/commit/gnu/packages/entr.scm?id=489703898380ab1a0db86f82c4861a33bf97b5fd'>gnu: entr: Fix references to external programs.</a></td><td>Jakub Kądziołka</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/entr.scm (entr)[arguments](remove-fhs-file-names): Use 'which'
instead of relying on the runtime PATH.  Patch /bin/sh too.
[inputs]: Add NCURSES.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;


</td></tr>