def _get_reply(self, request, timeout=100):
if not self._connected:
return
poll = self.poller
client = self._sock
try:
client.send(request)
except Exception:
return
socks = dict(poll.poll(timeout))
if socks.get(client) == zmq.POLLIN:
reply = client.recv()
return reply
else:
client.setsockopt(zmq.LINGER, 0)
client.close()
poll.unregister(client)
self._no_connection_cnt += 1
if self._no_connection_cnt > 5:
self._connected = False
p = os.path.join(os.path.dirname(__file__), 'no_connection.jpg')
self._cached_image = Image.new_frame(p,
swap_rb=True)
else:
self.reset_connection(clear_connection_count=False)
return self._get_reply(request, timeout)
def _get_reply(self, request, timeout=100):
if not self._connected:
return
poll = self.poller
client = self._sock
try:
client.send(request)
except Exception:
return
socks = dict(poll.poll(timeout))
if socks.get(client) == zmq.POLLIN:
reply = client.recv()
return reply
else:
client.setsockopt(zmq.LINGER, 0)
client.close()
poll.unregister(client)
self._no_connection_cnt += 1
if self._no_connection_cnt > 5:
self._connected = False
p = os.path.join(os.path.dirname(__file__), 'no_connection.jpg')
self._cached_image = Image.new_frame(p,
swap_rb=True)
else:
self.reset_connection(clear_connection_count=False)
return self._get_reply(request, timeout)
def _image_path_changed(self):
if self.image_path:
self._cached_image = Image.new_frame(self.image_path, swap_rb=True)
def _image_path_changed(self):
if self.image_path:
self._cached_image = Image.new_frame(self.image_path, swap_rb=True)