def ping(self):
"""
Execute PING request.
Send empty request and receive empty response from server.
:return: response time in seconds
:rtype: float
"""
t0 = time.time()
self._socket.sendall(struct_LLL.pack(0xff00, 0, 0))
request_type, body_length, request_id = struct_LLL.unpack(
self._socket.recv(12))
t1 = time.time()
assert request_type == 0xff00
assert body_length == 0
return t1 - t0
def header(cls, body_length):
return struct_LLL.pack(cls.request_type, body_length, 0)
def __init__(self, conn):
super(RequestPing, self).__init__(conn)
self._bytes = struct_LLL.pack(REQUEST_TYPE_PING, 0, 0)
