1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
#| -*-Scheme-*-
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
2017, 2018, 2019 Massachusetts Institute of Technology
This file is part of MIT/GNU Scheme.
MIT/GNU Scheme 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 2 of the License, or (at
your option) any later version.
MIT/GNU Scheme 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 MIT/GNU Scheme; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301,
USA.
|#
;;;; Tests of thread-queue (mailbox) support
(declare (usual-integrations))
(define test-items '(#\a pause
#\b #\c pause
#\d #\e #\f #\g #\h #\i #\j
end))
(define (test)
;; Sets up a "producer" thread that puts characters into a
;; thread-queue, and a "consumer" thread that waits on the queue,
;; collecting what it reads.
(let* ((queue (make-thread-queue))
(consumer
(create-thread
#f
(lambda ()
(sleep-current-thread 100)
(let loop ((items '()))
(let ((item (thread-queue/dequeue! queue)))
(if (eq? 'end item)
(exit-current-thread (reverse! items))
(loop (cons item items)))))))))
(for-each (lambda (item)
(if (eq? 'pause item)
(sleep-current-thread 100)
(thread-queue/queue! queue item)))
test-items)
(thread-join consumer)))
(define (thread-join thread)
(let ((done? #f) (value))
(with-thread-events-blocked
(lambda ()
(join-thread thread (lambda (thread v)
(declare (ignore thread))
(set! value v)
(set! done? #t)
#f))
(do () (done?) (suspend-current-thread))
value))))
(define-test 'thread-queue
(lambda ()
(assert-equal (test) (filter char? test-items))))
|
