def __init__(self):
self.cb_set = dict()<EOL>self.cb_args = dict()<EOL>self.cb_err = None<EOL>self.cb_err_arg = None<EOL>self.cb_recvmsgs_ow = None<EOL>self.cb_recv_ow = None<EOL>self.cb_send_ow = None<EOL>self.cb_active = None<EOL>
Constructor.