async def decode_remaining_length():
"""
Decode message length according to MQTT specifications
:return:
"""
multiplier = 1
value = 0
buffer = bytearray()
while True:
encoded_byte = await reader.read(1)
int_byte = unpack('!B', encoded_byte)
buffer.append(int_byte[0])
value += (int_byte[0] & 0x7f) * multiplier
if (int_byte[0] & 0x80) == 0:
break
else:
multiplier *= 128
if multiplier > 128 * 128 * 128:
raise MQTTException(
"Invalid remaining length bytes:%s, packet_type=%d"
% (bytes_to_hex_str(buffer), msg_type))
return value
def decode_remaining_length():
"""
Decode message length according to MQTT specifications
:return:
"""
multiplier = 1
value = 0
buffer = bytearray()
while True:
encoded_byte = yield from reader.read(1)
int_byte = unpack('!B', encoded_byte)
buffer.append(int_byte[0])
value += (int_byte[0] & 0x7f) * multiplier
if (int_byte[0] & 0x80) == 0:
break
else:
multiplier *= 128
if multiplier > 128 * 128 * 128:
raise MQTTException("Invalid remaining length bytes:%s, packet_type=%d" % (bytes_to_hex_str(buffer), msg_type))
return value
def test_bytes_to_hex_str(self):
ret = bytes_to_hex_str(b'\x7f')
self.assertEqual(ret, '0x7f')
def test_bytes_to_hex_str(self):
ret = bytes_to_hex_str(b"\x7f")
self.assertEqual(ret, "0x7f")