;;; 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)