;;;; miscellaneous tests of thread stuff

;;;; 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
;;;; absoluely no warranty. See the COPYING and CREDITS files for
;;;; more information.

(in-package :cl-user)

(defpackage :thread-test
  (:use :cl :sb-thread))

(in-package :thread-test)

(use-package :test-util)

;;; Terminating a thread that's waiting for the terminal.

#+sb-thread
(let ((thread (make-thread (lambda ()
                             (sb-thread::get-foreground)))))
  (sleep 1)
  (assert (thread-alive-p thread))
  (terminate-thread thread)
  (sleep 1)
  (assert (not (thread-alive-p thread))))

;;; Condition-wait should not be interruptible under WITHOUT-INTERRUPTS

#+sb-thread
(with-test (:name without-interrupts+condition-wait
            :fails-on :sb-lutex)
  (let* ((lock (make-mutex))
         (queue (make-waitqueue))
         (thread (make-thread (lambda ()
                                (sb-sys:without-interrupts
                                  (with-mutex (lock)
                                    (condition-wait queue lock)))))))
    (sleep 1)
    (assert (thread-alive-p thread))
    (terminate-thread thread)
    (sleep 1)
    (assert (thread-alive-p thread))
    (condition-notify queue)
    (sleep 1)
    (assert (not (thread-alive-p thread)))))

;;; GET-MUTEX should not be interruptible under WITHOUT-INTERRUPTS

#+sb-thread
(with-test (:name without-interrupts+get-mutex)
  (let* ((lock (make-mutex))
         (bar (progn (get-mutex lock) nil))
         (thread (make-thread (lambda ()
                                (sb-sys:without-interrupts
                                    (with-mutex (lock)
                                      (setf bar t)))))))
    (sleep 1)
    (assert (thread-alive-p thread))
    (terminate-thread thread)
    (sleep 1)
    (assert (thread-alive-p thread))
    (release-mutex lock)
    (sleep 1)
    (assert (not (thread-alive-p thread)))
    (assert (eq :aborted (join-thread thread :default :aborted)))
    (assert bar)))

#+sb-thread
(with-test (:name parallel-find-class)
  (let* ((oops nil)
         (threads (loop repeat 10
                        collect (make-thread (lambda ()
                                               (handler-case
                                                   (loop repeat 10000
                                                         do (find-class (gensym) nil))
                                                 (serious-condition ()
                                                   (setf oops t))))))))
    (mapcar #'sb-thread:join-thread threads)
    (assert (not oops))))