+(defun alloc-stuff () (copy-list '(1 2 3 4 5)))
+
+(let ((c (test-interrupt (lambda () (loop (alloc-stuff))))))
+ ;; NB this only works on x86: other ports don't have a symbol for
+ ;; pseudo-atomic atomicity
+ (format t "new thread ~A~%" c)
+ (dotimes (i 100)
+ (sleep (random 1d0))
+ (interrupt-thread c
+ (lambda ()
+ (princ ".") (force-output)
+ (assert (zerop SB-KERNEL:*PSEUDO-ATOMIC-ATOMIC*)))))
+ (terminate-thread c))
+(terpri)
+
+(defparameter *interrupt-count* 0)
+
+(declaim (notinline check-interrupt-count))
+(defun check-interrupt-count (i)
+ (declare (optimize (debug 1) (speed 1)))
+ ;; This used to lose if eflags were not restored after an interrupt.
+ (unless (typep i 'fixnum)
+ (error "!!!!!!!!!!!")))
+
+(let ((c (make-thread
+ (lambda ()
+ (handler-bind ((error #'(lambda (cond)
+ (princ cond)
+ (sb-debug:backtrace
+ most-positive-fixnum))))
+ (loop (check-interrupt-count *interrupt-count*)))))))
+ (let ((func (lambda ()
+ (princ ".")
+ (force-output)
+ (sb-impl::atomic-incf/symbol *interrupt-count*))))
+ (sb-sys:with-pinned-objects (func)
+ (setq *interrupt-count* 0)
+ (dotimes (i 100)
+ (sleep (random 1d0))
+ (interrupt-thread c func))
+ (sleep 1)
+ (assert (= 100 *interrupt-count*))
+ (terminate-thread c))))
+
+(format t "~&interrupt test done~%")
+
+(let (a-done b-done)
+ (make-thread (lambda ()
+ (dotimes (i 100)
+ (sb-ext:gc) (princ "\\") (force-output) )
+ (setf a-done t)))
+ (make-thread (lambda ()
+ (dotimes (i 25)
+ (sb-ext:gc :full t)
+ (princ "/") (force-output))
+ (setf b-done t)))
+ (loop
+ (when (and a-done b-done) (return))
+ (sleep 1)))
+
+(terpri)
+
+(defun waste (&optional (n 100000))
+ (loop repeat n do (make-string 16384)))
+
+(loop for i below 100 do
+ (princ "!")
+ (force-output)
+ (sb-thread:make-thread
+ #'(lambda ()
+ (waste)))
+ (waste)
+ (sb-ext:gc))
+
+(terpri)
+
+(defparameter *aaa* nil)
+(loop for i below 100 do
+ (princ "!")
+ (force-output)
+ (sb-thread:make-thread
+ #'(lambda ()
+ (let ((*aaa* (waste)))
+ (waste))))
+ (let ((*aaa* (waste)))
+ (waste))
+ (sb-ext:gc))
+
+(format t "~&gc test done~%")
+
+;; this used to deadlock on session-lock
+(sb-thread:make-thread (lambda () (sb-ext:gc)))
+;; expose thread creation races by exiting quickly
+(sb-thread:make-thread (lambda ()))
+
+(defun exercise-syscall (fn reference-errno)
+ (sb-thread:make-thread
+ (lambda ()
+ (loop do
+ (funcall fn)
+ (let ((errno (sb-unix::get-errno)))
+ (sleep (random 1.0))
+ (unless (eql errno reference-errno)
+ (format t "Got errno: ~A (~A) instead of ~A~%"
+ errno
+ (sb-unix::strerror)
+ reference-errno)
+ (force-output)
+ (sb-ext:quit :unix-status 1)))))))
+
+(let* ((nanosleep-errno (progn
+ (sb-unix:nanosleep -1 0)
+ (sb-unix::get-errno)))
+ (open-errno (progn
+ (open "no-such-file"
+ :if-does-not-exist nil)
+ (sb-unix::get-errno)))
+ (threads
+ (list
+ (exercise-syscall (lambda () (sb-unix:nanosleep -1 0)) nanosleep-errno)
+ (exercise-syscall (lambda () (open "no-such-file"
+ :if-does-not-exist nil))
+ open-errno)
+ (sb-thread:make-thread (lambda () (loop (sb-ext:gc) (sleep 1)))))))
+ (sleep 10)
+ (princ "terminating threads")
+ (dolist (thread threads)
+ (sb-thread:terminate-thread thread)))
+
+(format t "~&errno test done~%")
+
+(loop repeat 100 do
+ (let ((thread (sb-thread:make-thread (lambda () (sleep 0.1)))))
+ (sb-thread:interrupt-thread
+ thread
+ (lambda ()
+ (assert (find-restart 'sb-thread:terminate-thread))))))
+
+(sb-ext:gc :full t)
+
+(format t "~&thread startup sigmask test done~%")
+
+#| ;; a cll post from eric marsden
+| (defun crash ()
+| (setq *debugger-hook*
+| (lambda (condition old-debugger-hook)
+| (debug:backtrace 10)
+| (unix:unix-exit 2)))
+| #+live-dangerously
+| (mp::start-sigalrm-yield)
+| (flet ((roomy () (loop (with-output-to-string (*standard-output*) (room)))))
+| (mp:make-process #'roomy)
+| (mp:make-process #'roomy)))
+|#
+
+;; give the other thread time to die before we leave, otherwise the
+;; overall exit status is 0, not 104
+(sleep 2)
+