class QueueElement(IElement):
def __init__(self, id):
super().__init__(id)
self.init()
def init(self):
self.thread = None
self.loop = False
self.buffer = Buffer(self.id)
def start(self):
self.loop = True
self.buffer.start()
self.thread = Thread(target=self.run)
self.thread.start()
def stop(self):
self.loop = False
self.buffer.stop()
self.thread.join()
def run(self):
while(self.loop):
value = self.buffer.pop()
if value is not None:
if self.product is not None:
self.notify(self.product.process(value))
else:
self.notify(value)
def update(self, value):
self.buffer.push(value)
def test_02(self):
buf1 = Buffer("buf1")
for i in range(1, 10):
value = "TEST_{0}".format(i)
buf1.push(value)
self.assertEqual(i, buf1.size())
buf1.clear()
self.assertEqual(0, buf1.size())
class VideoDisplaySubThread(IdentityObject):
def __init__(self, id, logger, params):
self.id = id
self._loop = False
self.buffer = Buffer(id)
self.logger = logger
self.params = params
self.title = params["title"]
self.left = params["left"]
self.top = params["top"]
def start(self):
self.logger.info("VideoDisplaySubThread.start() IN")
self._loop = True
self.buffer.start()
self._thread = threading.Thread(target=self.process)
self._thread.start()
self.logger.info("VideoDisplaySubThread.start() OUT")
def stop(self):
self.logger.info("VideoDisplaySubThread.stop() IN")
self._loop = False
self.buffer.stop()
self._thread.join()
self.logger.info("VideoDisplaySubThread.stop() OUT")
def request(self, request):
self.buffer.push(request)
def process(self):
self.logger.info("VideoDisplaySubThread.process() IN")
while self._loop:
request = self.buffer.pop()
if request.Command == request.command_start:
cv2.namedWindow(self.title,
cv2.WINDOW_AUTOSIZE | cv2.WINDOW_GUI_NORMAL)
cv2.moveWindow(self.title, self.left, self.top)
elif request.Command == request.command_stop:
cv2.destroyWindow(self.title)
elif request.Command == request.command_data:
cv2.imshow(self.title, request.Body)
cv2.waitKey(1)
else:
pass
self.logger.info("VideoDisplaySubThread.process() OUT")
def test_01(self):
buf1 = Buffer("buf1")
buf2 = Buffer("buf2")
buf3 = Buffer("buf3")
buf1.start()
buf2.start()
buf3.start()
expect = "test_test_test"
buf1.push(expect)
self.assertEqual(1, buf1.size())
value2 = buf1.pop()
self.assertEqual(0, buf1.size())
self.assertEqual(expect, value2)
buf2.push(value2)
self.assertEqual(1, buf2.size())
value3 = buf2.pop()
self.assertEqual(0, buf2.size())
self.assertEqual(expect, value3)
buf3.push(value3)
self.assertEqual(1, buf3.size())
actual = buf3.pop()
self.assertEqual(0, buf3.size())
self.assertEqual(expect, actual)