Issue #7194: test_thread could try to release an unacquired mutex (and fail).
diff --git a/Lib/test/test_thread.py b/Lib/test/test_thread.py
index ffd5244..66ad22f 100644
--- a/Lib/test/test_thread.py
+++ b/Lib/test/test_thread.py
@@ -26,6 +26,7 @@
self.done_mutex.acquire()
self.running_mutex = thread.allocate_lock()
self.random_mutex = thread.allocate_lock()
+ self.created = 0
self.running = 0
self.next_ident = 0
@@ -37,6 +38,7 @@
self.next_ident += 1
verbose_print("creating task %s" % self.next_ident)
thread.start_new_thread(self.task, (self.next_ident,))
+ self.created += 1
self.running += 1
def task(self, ident):
@@ -47,7 +49,7 @@
verbose_print("task %s done" % ident)
with self.running_mutex:
self.running -= 1
- if self.running == 0:
+ if self.created == NUMTASKS and self.running == 0:
self.done_mutex.release()
def test_starting_threads(self):
@@ -89,6 +91,7 @@
for tss in (262144, 0x100000):
verbose_print("trying stack_size = (%d)" % tss)
self.next_ident = 0
+ self.created = 0
for i in range(NUMTASKS):
self.newtask()