Fix last change

* test/src/thread-tests.el (threads-condvar-wait): Revert
previous change.  Make sure no other threads from previous
tests are running, to avoid interfering with our thread counts.
This commit is contained in:
Eli Zaretskii 2017-01-13 18:17:12 +02:00
parent 26b5426de8
commit d018843e0e

View file

@ -257,14 +257,17 @@
(ert-deftest threads-condvar-wait ()
"test waiting on conditional variable"
(let ((cv-mutex (make-mutex))
(nthreads (length (all-threads)))
new-thread)
;; We could have spurious threads from the previous tests still
;; running; wait for them to die.
(while (> (length (all-threads)) 1)
(thread-yield))
(setq threads-condvar (make-condition-variable cv-mutex))
(setq new-thread (make-thread #'threads-test-condvar-wait))
;; Make sure new-thread is alive.
(should (thread-alive-p new-thread))
(should (= (length (all-threads)) (1+ nthreads)))
(should (= (length (all-threads)) 2))
;; Wait for new-thread to become blocked on the condvar.
(while (not (eq (thread--blocker new-thread) threads-condvar))
(thread-yield))
@ -272,21 +275,18 @@
;; Notify the waiting thread.
(with-mutex cv-mutex
(condition-notify threads-condvar t))
;; Allow new-thread to process the notification. Sleeping for too
;; short time here will fail the length test below.
(sleep-for 1)
;; Allow new-thread to process the notification.
(sleep-for 0.1)
;; Make sure the thread is still there. This used to fail due to
;; a bug in thread.c:condition_wait_callback.
(should (thread-alive-p new-thread))
(should (= (length (all-threads)) (1+ nthreads)))
(should (memq new-thread (all-threads)))
;; Make sure the other thread waits at the condition variable again.
(should (= (length (all-threads)) 2))
(should (eq (thread--blocker new-thread) threads-condvar))
;; Signal the thread.
(thread-signal new-thread 'error '("Die, die, die!"))
(sleep-for 0.1)
;; Make sure the thread died.
(should (= (length (all-threads)) nthreads))))
(should (= (length (all-threads)) 1))))
;;; threads.el ends here