'@type sock_addr: (str, int)
@type circuit_id: int
@return:'

def __init__(self, circuit_id, sock_addr, rendezvous_relay=False, mid=None):

    self.sock_addr = sock_addr
    self.circuit_id = circuit_id
    self.creation_time = time.time()
    self.last_incoming = time.time()
    self.bytes_up = self.bytes_down = 0
    self.rendezvous_relay = rendezvous_relay
    self.mid = mid
