def lock_getter1(lock_dir, lock_id, qs2m, qm2s):
l = Lock(lock_dir, lock_id)
got_lock = l.acquire_if_available()
qs2m.put(got_lock)
l.acquire()
qs2m.put(True)
d = qm2s.get()
l.release()
def test_multiproc1(self):
l = Lock(self.dir, "id1")
l.acquire()
qs2m = Queue()
qm2s = Queue()
p = Process(target=lock_getter1, args=(self.dir, "id1", qs2m, qm2s))
p.start()
r = qs2m.get()
self.assertFalse(r, "Slave process was able to get lock!")
l.release()
d = qs2m.get()
got_lock = l.acquire_if_available()
self.assertFalse(got_lock)
qm2s.put(True)
l.acquire()
l.release()
l.cleanup()
def test_sequential_locking(self):
l = Lock(self.dir, "id1")
self.assertFalse(l.is_locked())
l.acquire()
self.assertTrue(l.is_locked())
l.release()
self.assertFalse(l.is_locked())
got_lock = l.acquire_if_available()
self.assertTrue(got_lock)
got_exception = False
try:
l.acquire()
except LockError:
got_exception = True
self.assertTrue(got_exception)
l.release()
l.cleanup()
self.assertFalse(os.path.exists(l.path))
