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Issue #7194: test_thread could try to release an unacquired mutex (and fail).

This commit is contained in:
Antoine Pitrou 2009-10-23 18:32:15 +00:00
parent d617cba62d
commit b5cf8a059c
1 changed files with 4 additions and 1 deletions
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5
Lib/test/test_thread.py
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@ -26,6 +26,7 @@ class BasicThreadTest(unittest.TestCase):
self.done_mutex.acquire() self.done_mutex.acquire()
self.running_mutex = thread.allocate_lock() self.running_mutex = thread.allocate_lock()
self.random_mutex = thread.allocate_lock() self.random_mutex = thread.allocate_lock()
self.created = 0
self.running = 0 self.running = 0
self.next_ident = 0 self.next_ident = 0
@ -37,6 +38,7 @@ class ThreadRunningTests(BasicThreadTest):
self.next_ident += 1 self.next_ident += 1
verbose_print("creating task %s" % self.next_ident) verbose_print("creating task %s" % self.next_ident)
thread.start_new_thread(self.task, (self.next_ident,)) thread.start_new_thread(self.task, (self.next_ident,))
self.created += 1
self.running += 1 self.running += 1
def task(self, ident): def task(self, ident):
@ -47,7 +49,7 @@ class ThreadRunningTests(BasicThreadTest):
verbose_print("task %s done" % ident) verbose_print("task %s done" % ident)
with self.running_mutex: with self.running_mutex:
self.running -= 1 self.running -= 1
if self.running == 0: if self.created == NUMTASKS and self.running == 0:
self.done_mutex.release() self.done_mutex.release()
def test_starting_threads(self): def test_starting_threads(self):
@ -89,6 +91,7 @@ class ThreadRunningTests(BasicThreadTest):
for tss in (262144, 0x100000): for tss in (262144, 0x100000):
verbose_print("trying stack_size = (%d)" % tss) verbose_print("trying stack_size = (%d)" % tss)
self.next_ident = 0 self.next_ident = 0
self.created = 0
for i in range(NUMTASKS): for i in range(NUMTASKS):
self.newtask() self.newtask()