#f)
(%queue! queue item))))
-(define (thread-queue/dequeue-no-hang queue timeout)
+(define (thread-queue/dequeue-no-hang queue msec)
(guarantee-thread-queue queue 'thread-queue/dequeue-no-hang)
- (guarantee-non-negative-fixnum timeout 'thread-queue/dequeue-no-hang)
- (thread-queue/dequeue-until queue (+ (real-time-clock) timeout)))
+ (guarantee-non-negative-fixnum msec 'thread-queue/dequeue-no-hang)
+ (thread-queue/dequeue-until
+ queue (+ (real-time-clock) (internal-time/seconds->ticks (/ msec 1000)))))
(define (thread-queue/dequeue-until queue time)
(guarantee-thread-queue queue 'thread-queue/dequeue-until)
(list (current-thread))))
(suspend-current-thread)))))
-(define (thread-queue/peek-no-hang queue timeout)
+(define (thread-queue/peek-no-hang queue msec)
(guarantee-thread-queue queue 'thread-queue/peek-no-hang)
- (guarantee-non-negative-fixnum timeout 'thread-queue/peek-no-hang)
- (thread-queue/peek-until queue (+ (real-time-clock) timeout)))
+ (guarantee-non-negative-fixnum msec 'thread-queue/peek-no-hang)
+ (thread-queue/peek-until
+ queue (+ (real-time-clock) (internal-time/seconds->ticks (/ msec 1000)))))
(define (thread-queue/peek-until queue time)
(guarantee-thread-queue queue 'thread-queue/peek-until)
(set-%thread-queue/element-count! queue
(1+ (%thread-queue/element-count queue)))
(%resume-dequeuers queue)
- item))
-
-(define (test)
- ;; Sets up a "producer" thread that puts the letters of the alphabet
- ;; into a thread-queue, one each 2-3 seconds. A "consumer" thread
- ;; waits on the queue, printing what it reads.
- (outf-error ";Thread Queue Test\n")
- (let ((queue (make-thread-queue)))
- (create-thread
- #f
- (lambda ()
- (outf-error "; Consumer: "(current-thread)"\n")
- (let loop ()
- (outf-error "; Consumer reads.\n")
- (let ((item (thread-queue/dequeue! queue)))
- (outf-error "; Consumer read "item"\n")
- (loop)))))
- (create-thread
- #f
- (lambda ()
- (outf-error "; Producer: "(current-thread)"\n")
- (for-each (lambda (item)
- (outf-error "; Producer: sleeping...\n")
- (sleep-current-thread 2000)
- (outf-error "; Producer: queuing "item"...\n")
- (thread-queue/queue! queue item)
- (outf-error "; Producer: queued "item"\n"))
- '(#\a #\b #\c #\d #\e))
- (outf-error "; Producer done.\n")))))
\ No newline at end of file
+ item))
\ No newline at end of file
--- /dev/null
+#| -*-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 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))
+\f
+(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 ((value))
+ (with-thread-events-blocked
+ (lambda ()
+ (join-thread thread (lambda (thread v)
+ (declare (ignore thread))
+ (set! value v)
+ #f))
+ (suspend-current-thread)
+ value))))
+
+(define-test 'thread-queue
+ (lambda ()
+ (assert-equal (test) (filter char? test-items))))
\ No newline at end of file