def reg_msg_handler(self, msg_info, reply=None):
try:
logger.debug("Registration msg handler called.")
if reply:
for single_response in reply.payloads:
if single_response.return_value == 0:
logger.info("\t\tRegistration ACK received.")
# change status to YES in config file
config = ConfigObj(config_file_name)
config["Registered"] = "YES"
config["UTC Time"] = single_response.output
bashit("date -s@"+str(single_response.output))
config.write()
start_communication_with_nc_event.set()
logger.info("Start_communication_with_nc_event is set.")
else:
logger.critical("ERROR: Unknown ACK received: Discarding..")
return
# handle failure
logger.critical("Registration timeout.............")
msg_info[2] = self.calculate_expiration_time(registration_type, None)
self.add_to_sent_msgs_bfr(msg_info)
self.send_msg_to_nc(msg_info[3])
logger.critical("Registration msg resent.............")
except Exception as inst:
logger.critical("ERROR: Exception in reg_msg_handler: " + str(inst))
def data_msg_handler(self, msg_info, reply=None):
try:
logger.debug("Data msg handler called.")
if reply:
for single_response in reply.payloads:
if single_response.output == acknowledgment and not single_response.return_value:
logger.info("\t\tData ACK received.")
else:
logger.critical("Unknown ACK received: Discarding..")
return
# handle failure
logger.critical("Data Packet timeout.............")
msg_info[2] = self.calculate_expiration_time(data_type, None)
self.add_to_sent_msgs_bfr(msg_info)
self.send_msg_to_nc(msg_info[3])
logger.critical("Data msg resent.............")
except Exception as inst:
logger.critical("ERROR: Exception in data_msg_handler: " + str(inst))
def run(self):
try:
nc_ip = self.get_nc_ip()
logger.debug("Starting " + self.thread_name + "\n\n")
self.shutdown = 0
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.connect( (nc_ip, self.nc_port) )
logger.info("CONNECTED............."+"\n\n")
while True:
# Starts the loop which polls the open socket for *count* times,
# comes out of the asyncore loop and then repeats after 0.01s
# Performance widely varies based on sleep time and count's value
# When count=0/None control will never come out of the asyncore loop
asyncore.loop(timeout=0.01, use_poll=True, map=None) # , count=n) can be added. n>=1
time.sleep(0.01)
except Exception as inst:
logger.critical("Exception in run: " + str(inst) + "\n\n")
self.shutdown = 1
self.handle_close()
logger.critical("Error in connecting with the NC.\n\n")
time.sleep(10)
self.run()
def close(self):
for thread in sensor_thread_list:
thread.join(1)
logger.info("All per sensor threads exited."+ "\n\n")