def _SendAck(self):
"""Send an ACK back to server."""
if self._total_bytes_received > self._total_bytes_received_and_acked:
bytes_received = self._total_bytes_received
try:
ack_data = utils.CreateSubprotocolAckFrame(bytes_received)
self._websocket_helper.Send(ack_data)
self._total_bytes_received_and_acked = bytes_received
except helper.WebSocketConnectionClosed:
pass
except EnvironmentError as e:
log.info('Unable to send WebSocket ack [%s]', str(e))
except: # pylint: disable=bare-except
if not self._IsClosed():
log.info('Error while attempting to ack [%d] bytes', bytes_received,
exc_info=True)
def testCreateSubprotocolAckFrame(self, ack_bytes, expected_bytes):
self.assertEqual(utils.CreateSubprotocolAckFrame(ack_bytes),
expected_bytes)
def testCreateSubprotocolAckFrameInvalidInput(self, ack_bytes,
expected_error):
with self.AssertRaisesExceptionMatches(expected_error, ''):
utils.CreateSubprotocolAckFrame(ack_bytes)
def _SendAck(self):
if self._total_bytes_received:
ack_data = utils.CreateSubprotocolAckFrame(
self._total_bytes_received)
self._SendBytes(ack_data)