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;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
;;;;
;;;; While most of SBCL is derived from the CMU CL system, the test
;;;; files (like this one) were written from scratch after the fork
;;;; from CMU CL.
;;;;
;;;; This software is in the public domain and is provided with
;;;; absolutely no warranty. See the COPYING and CREDITS files for
;;;; more information.
#+interpreter (invoke-restart 'run-tests::skip-file)
(with-test (:name :heap)
(let* ((size 1000)
(heap (make-array size :adjustable t :fill-pointer 0))
(unsorted (loop for i below size collect (random size)))
(sorted (sort (copy-list unsorted) #'>=))
heap-sorted)
(map nil #'(lambda (val) (sb-impl::heap-insert heap val)) unsorted)
(setf heap-sorted (loop for i below size
collect (sb-impl::heap-extract-maximum heap)))
(unless (equal sorted heap-sorted)
(error "Heap sort failure ~S" heap-sorted))))
(sb-alien:define-alien-routine "check_deferrables_blocked_or_lose"
void
(where sb-alien:unsigned-long))
(sb-alien:define-alien-routine "check_deferrables_unblocked_or_lose"
void
(where sb-alien:unsigned-long))
(defun make-limited-timer (fn n &rest args)
(let (timer)
(setq timer
(apply #'sb-ext:make-timer
(lambda ()
(sb-sys:without-interrupts
(decf n)
(cond ((minusp n)
(warn "Unscheduling timer ~A ~
upon reaching run limit. System too slow?"
timer)
(sb-ext:unschedule-timer timer))
(t
(sb-sys:allow-with-interrupts
(funcall fn))))))
args))))
(defun make-and-schedule-and-wait (fn time)
(let ((finishedp nil))
(sb-ext:schedule-timer (sb-ext:make-timer
(lambda ()
(sb-sys:without-interrupts
(unwind-protect
(sb-sys:allow-with-interrupts
(funcall fn))
(setq finishedp t)))))
time)
(loop until finishedp)))
(with-test (:name (:timer :deferrables-blocked))
(make-and-schedule-and-wait (lambda ()
(check-deferrables-blocked-or-lose 0))
(random 0.1))
(check-deferrables-unblocked-or-lose 0))
(with-test (:name (:timer :deferrables-unblocked))
(make-and-schedule-and-wait (lambda ()
(sb-sys:with-interrupts
(check-deferrables-unblocked-or-lose 0)))
(random 0.1))
(check-deferrables-unblocked-or-lose 0))
(with-test (:name (:timer :deferrables-unblocked :unwind))
(catch 'xxx
(make-and-schedule-and-wait (lambda ()
(check-deferrables-blocked-or-lose 0)
(throw 'xxx nil))
(random 0.1))
(sleep 1))
(check-deferrables-unblocked-or-lose 0))
(defmacro raises-timeout-p (&body body)
`(handler-case (progn (progn ,@body) nil)
(sb-ext:timeout () t)))
(with-test (:name (:timer :relative)
:fails-on (and :sparc :linux)
:skipped-on :gc-stress)
(let* ((has-run-p nil)
(timer (make-timer (lambda () (setq has-run-p t))
:name "simple timer")))
(schedule-timer timer 0.5)
(sleep 0.2)
(assert (not has-run-p))
(sleep 0.5)
(assert has-run-p)
(assert (zerop (length (sb-impl::%pqueue-contents sb-impl::*schedule*))))))
(with-test (:name (:timer :absolute)
:fails-on (and :sparc :linux)
:skipped-on :gc-stress)
(let* ((has-run-p nil)
(timer (make-timer (lambda () (setq has-run-p t))
:name "simple timer")))
(schedule-timer timer (+ 1/2 (get-universal-time)) :absolute-p t)
(sleep 0.2)
(assert (not has-run-p))
(sleep 0.5)
(assert has-run-p)
(assert (zerop (length (sb-impl::%pqueue-contents sb-impl::*schedule*))))))
(with-test (:name (:timer :other-thread) :skipped-on (not :sb-thread))
(let* ((sem (sb-thread:make-semaphore))
(thread (sb-thread:make-thread (lambda () (sb-thread:wait-on-semaphore sem))))
(timer (make-timer (lambda ()
(assert (eq thread sb-thread:*current-thread*)))
:thread thread)))
(schedule-timer timer 0.1)
(sb-thread:signal-semaphore sem)
(assert (sb-thread:join-thread thread))))
(with-test (:name (:timer :new-thread) :skipped-on (not :sb-thread))
(let* ((original-thread sb-thread:*current-thread*)
(timer (make-timer
(lambda ()
(assert (not (eq original-thread
sb-thread:*current-thread*))))
:thread t)))
(schedule-timer timer 0.1)))
(with-test (:name (:timer :repeat-and-unschedule)
:fails-on (and :sparc :linux))
(let* ((run-count 0)
timer)
(setq timer
(make-timer (lambda ()
(when (= 5 (incf run-count))
(unschedule-timer timer)))))
(schedule-timer timer 0 :repeat-interval 0.2)
(assert (timer-scheduled-p timer :delta 0.3))
(sleep 1.3)
(assert (= 5 run-count))
(assert (not (timer-scheduled-p timer)))
(assert (zerop (length (sb-impl::%pqueue-contents sb-impl::*schedule*))))))
(with-test (:name (:timer :reschedule))
(let* ((has-run-p nil)
(timer (make-timer (lambda ()
(setq has-run-p t)))))
(schedule-timer timer 0.2)
(schedule-timer timer 0.3)
(sleep 0.5)
(assert has-run-p)
(assert (zerop (length (sb-impl::%pqueue-contents sb-impl::*schedule*))))))
(with-test (:name (:timer :stress))
(let ((time (1+ (get-universal-time))))
(loop repeat 200 do
(schedule-timer (make-timer (lambda ())) time :absolute-p t))
(sleep 2)
(assert (zerop (length (sb-impl::%pqueue-contents sb-impl::*schedule*))))))
(with-test (:name (:timer :stress2))
(let ((time (1+ (get-universal-time)))
(n 0))
(loop for time-n from time upto (+ 1/10 time) by (/ 1/10 200)
do (schedule-timer (make-timer (lambda ())) time-n :absolute-p t)
(incf n))
(sleep 2)
(assert (zerop (length (sb-impl::%pqueue-contents sb-impl::*schedule*))))))
(with-test (:name (:with-timeout :timeout))
(assert (raises-timeout-p
(sb-ext:with-timeout 0.2
(sleep 1)))))
(with-test (:name (:with-timeout :fall-through)
:skipped-on :gc-stress)
(assert (not (raises-timeout-p
(sb-ext:with-timeout 0.3
(sleep 0.1))))))
(with-test (:name (:with-timeout :nested-timeout-smaller))
(assert(raises-timeout-p
(sb-ext:with-timeout 10
(sb-ext:with-timeout 0.5
(sleep 2))))))
(with-test (:name (:with-timeout :nested-timeout-bigger))
(assert(raises-timeout-p
(sb-ext:with-timeout 0.5
(sb-ext:with-timeout 2
(sleep 2))))))
(with-test (:name (:with-timeout :many-at-the-same-time)
:skipped-on (not :sb-thread))
(let ((ok t))
(let ((threads (loop repeat 10 collect
(sb-thread:make-thread
(lambda ()
(handler-case
(sb-ext:with-timeout 0.5
(sleep 5)
(setf ok nil)
(format t "~%not ok~%"))
(timeout ())))))))
(assert (not (raises-timeout-p
(sb-ext:with-timeout 20
(mapc #'sb-thread:join-thread threads)))))
(assert ok))))
;;; Used to hang occasionally at least on x86. Two bugs caused it:
;;; running out of stack (due to repeating timers being rescheduled
;;; before they ran) and dying threads were open interrupts.
(with-test (:name (:timer :parallel-unschedule)
:skipped-on (not :sb-thread)
:broken-on :ppc)
(let ((timer (sb-ext:make-timer (lambda () 42) :name "parallel schedulers"))
(other nil))
(flet ((flop ()
(sleep (random 0.01))
(loop repeat 10000
do (sb-ext:unschedule-timer timer))))
(sb-sys:with-deadline (:seconds 30)
(loop repeat 5
do (mapcar #'sb-thread:join-thread
(loop for i from 1 upto 10
collect (let* ((thread (sb-thread:make-thread #'flop
:name (format nil "scheduler ~A" i)))
(ticker (make-limited-timer (lambda () 13)
1000
:thread (or other thread)
:name (format nil "ticker ~A" i))))
(setf other thread)
(sb-ext:schedule-timer ticker 0 :repeat-interval 0.00001)
thread)))))
(sb-ext:unschedule-timer timer))))
;;;; FIXME: OS X 10.4 doesn't like these being at all, and gives us a SIGSEGV
;;;; instead of using the Mach expection system! 10.5 on the other tends to
;;;; lose() here with interrupt already pending. :/
;;;;
;;;; Used to have problems in genereal, see comment on (:TIMER
;;;; :PARALLEL-UNSCHEDULE).
(with-test (:name (:timer :schedule-stress))
(flet ((test ()
(let* ((slow-timers
(loop for i from 1 upto 1
collect (make-limited-timer
(lambda () 13)
1000
:name (format nil "slow ~A" i))))
(fast-timer (make-limited-timer (lambda () 42) 1000
:name "fast")))
(sb-ext:schedule-timer fast-timer 0.0001 :repeat-interval 0.0001)
(dolist (timer slow-timers)
(sb-ext:schedule-timer timer (random 0.1)
:repeat-interval (random 0.1)))
(dolist (timer slow-timers)
(sb-ext:unschedule-timer timer))
(sb-ext:unschedule-timer fast-timer))))
#+sb-thread
(mapcar #'sb-thread:join-thread
(loop repeat 10 collect (sb-thread:make-thread #'test)))
#-sb-thread
(loop repeat 10 do (test))))
(with-test (:name (:timer :threaded-stress)
:skipped-on (not :sb-thread)
:broken-on :sbcl)
(let ((barrier (sb-thread:make-semaphore))
(goal 100))
(flet ((wait-for-goal ()
(let ((*n* 0))
(declare (special *n*))
(sb-thread:signal-semaphore barrier)
(loop until (eql *n* goal))))
(one ()
(declare (special *n*))
(incf *n*)))
(let ((threads (list (sb-thread:make-thread #'wait-for-goal)
(sb-thread:make-thread #'wait-for-goal)
(sb-thread:make-thread #'wait-for-goal))))
(sb-thread:wait-on-semaphore barrier)
(sb-thread:wait-on-semaphore barrier)
(sb-thread:wait-on-semaphore barrier)
(flet ((sched (thread)
(sb-thread:make-thread (lambda ()
(loop repeat goal
do (sb-ext:schedule-timer (make-timer #'one :thread thread) 0.001))))))
(dolist (thread threads)
(sched thread)))
(loop for thread in threads
do (sb-thread:join-thread thread :timeout 40))))))
;; A timer with a repeat interval can be configured to "catch up" in
;; case of missed calls.
(with-test (:name (:timer :catch-up))
(flet ((test (&rest args)
(let ((timer (make-timer (lambda ()))))
(apply #'schedule-timer timer .01 args)
(unschedule-timer timer))))
;; :CATCH-UP does not make sense without :REPEAT-INTERVAL.
(assert-error (test :catch-up nil))
(assert-error (test :catch-up t))
;; These combinations are allowed.
(test :repeat-interval .01 :catch-up nil)
(test :repeat-interval .01 :catch-up t)))
|
