0.8.3.59:

[sbcl.git] / tests / threads.impure.lisp

diff --git a/tests/threads.impure.lisp b/tests/threads.impure.lisp
index 36111ea..8d00ae7 100644 (file)
--- a/tests/threads.impure.lisp
+++ b/tests/threads.impure.lisp
@@ -100,7 +100,8 @@
     child))
 
 ;;; separate tests for (a) interrupting Lisp code, (b) C code, (c) a syscall,
-;;; (d) waiting on a lock
+;;; (d) waiting on a lock, (e) some code which we hope is likely to be
+;;; in pseudo-atomic
 
 (let ((child (test-interrupt (lambda () (loop)))))  (terminate-thread child))
 
@@ -120,9 +121,36 @@
                 (lambda ()
                   (with-mutex (lock)
                     (assert (eql (mutex-value lock) (current-thread-id))))
-                  (assert (not (eql (mutex-value lock) (current-thread-id)))))))
+                  (assert (not (eql (mutex-value lock) (current-thread-id))))
+                  (sleep 60))))
     ;;hold onto lock for long enough that child can't get it immediately
-    (sleep 5))
+    (sleep 20)
+    (interrupt-thread child (lambda () (format t "l ~A~%" (mutex-value lock))))
+    (format t "parent releasing lock~%"))
   (terminate-thread child))
 
-(sb-ext:quit :unix-status 104)
+(defun alloc-stuff () (copy-list '(1 2 3 4 5)))
+(let ((c (test-interrupt (lambda () (loop (alloc-stuff))))))
+  ;; NB this only works on x86
+  (loop
+    (sleep (random 1d0))
+    (interrupt-thread c
+                     (lambda ()
+                       (princ ".") (force-output)
+                       (assert (zerop SB-KERNEL:*PSEUDO-ATOMIC-ATOMIC*)))))
+  (terminate-thread c))
+
+;; I'm not sure that this one is always successful.  Note race potential:
+;; I haven't checked if decf is atomic here
+(let ((done 2))
+  (make-thread (lambda () (dotimes (i 100) (sb-ext:gc)) (decf done)))
+  (make-thread (lambda () (dotimes (i 25) (sb-ext:gc :full t)) (decf done)))
+  (loop
+   (when (zerop done) (return))
+   (sleep 1)))
+
+;; give the other thread time to die before we leave, otherwise the
+;; overall exit status is 0, not 104
+(sleep 2) 
+
+;(sb-ext:quit :unix-status 104)