def init_comms(self, callback=None):
"""
Initialize client comms with the logger process and start a
listener thread.
"""
try:
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# This can be thrown here.
# error: [Errno 61] Connection refused
self.sock.connect((self.host, self.port))
self.sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
self.sock.setblocking(0)
self.listener_thread = Listener(self.sock, self.delim, callback)
self.listener_thread.start()
mi_logger.info(
'LoggerClient.init_comms(): connected to port agent at %s:%i.'
% (self.host, self.port))
except:
raise InstrumentConnectionException(
'Failed to connect to port agent at %s:%i.' %
(self.host, self.port))
def init_comms(self,
user_callback_data=None,
user_callback_raw=None,
listener_callback_error=None,
user_callback_error=None,
heartbeat=0,
max_missed_heartbeats=None,
start_listener=True):
self.user_callback_data = user_callback_data
self.user_callback_raw = user_callback_raw
self.listener_callback_error = listener_callback_error
self.user_callback_error = user_callback_error
self.heartbeat = heartbeat
self.max_missed_heartbeats = max_missed_heartbeats
self.start_listener = start_listener
if False == self._init_comms():
error_string = ' port_agent_client private _init_comms failed.'
log.error(error_string)
raise InstrumentConnectionException(error_string)