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;; Fibers: cooperative, event-driven user-space threads.
;;;; Copyright (C) 2016 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library 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
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;;;;
(define-module (tests cml)
#:use-module (fibers)
#:use-module (fibers channels))
(define failed? #f)
(define-syntax-rule (assert-equal expected actual)
(let ((x expected))
(format #t "assert ~s equal to ~s: " 'actual x)
(force-output)
(let ((y actual))
(cond
((equal? x y) (format #t "ok\n"))
(else
(format #t "no (got ~s)\n" y)
(set! failed? #t))))))
(define-syntax-rule (assert-run-fibers-terminates exp)
(begin
(format #t "assert run-fibers on ~s terminates: " 'exp)
(force-output)
(let ((start (get-internal-real-time)))
(call-with-values (lambda () (run-fibers (lambda () exp)))
(lambda vals
(format #t "ok (~a s)\n" (/ (- (get-internal-real-time) start)
1.0 internal-time-units-per-second))
(apply values vals))))))
(define-syntax-rule (assert-run-fibers-returns (expected ...) exp)
(begin
(call-with-values (lambda () (assert-run-fibers-terminates exp))
(lambda run-fiber-return-vals
(assert-equal '(expected ...) run-fiber-return-vals)))))
(define-syntax-rule (do-times n exp)
(let lp ((count n))
(let ((count (1- count)))
exp
(unless (zero? count) (lp count)))))
(define-syntax-rule (rpc exp)
(let ((ch (make-channel)))
(spawn-fiber (lambda () (put-message ch exp)))
(get-message ch)))
(assert-run-fibers-returns (1) (rpc 1))
(define (rpc-fib n)
(rpc (if (< n 2)
1
(+ (rpc-fib (- n 1)) (rpc-fib (- n 2))))))
(assert-run-fibers-returns (75025) (rpc-fib 24))
;; timed channel wait
;; multi-channel wait
;; cross-thread calls
(exit (if failed? 1 0))
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