def handle_pipe(self):
# Get just the commands off the pipe
request = self.pipe.recv_multipart()
command = request.pop(0).decode('UTF-8')
if not command:
return -1 # Interrupted
if self.verbose:
logger.debug("zbeacon: API command={0}".format(command))
if command == "VERBOSE":
self.verbose = True
elif command == "CONFIGURE":
port = struct.unpack('I', request.pop(0))[0]
self.configure(port)
elif command == "PUBLISH":
self.transmit = request.pop(0)
if self.interval == 0:
self.interval = INTERVAL_DFLT
# Start broadcasting immediately
self.ping_at = time.time()
elif command == "SILENCE":
self.transmit = None
elif command == "SUBSCRIBE":
self.filter = request.pop(0)
elif command == "UNSUBSCRIBE":
self.filter = None
elif command == "SEND BEACON":
self.send_beacon(request.pop(0))
elif command == "$TERM":
self.terminated = True
else:
logger.error("zbeacon: - invalid command: {0}".format(command))
def handle_pipe(self):
# Get just the commands off the pipe
request = self.pipe.recv_multipart()
command = request.pop(0).decode('UTF-8')
if not command:
return -1 # Interrupted
if self.verbose:
logger.debug("zbeacon: API command={0}".format(command))
if command == "VERBOSE":
self.verbose = True
elif command == "CONFIGURE":
port = struct.unpack('I', request.pop(0))[0]
self.configure(port)
elif command == "PUBLISH":
self.transmit = request.pop(0)
if self.interval == 0:
self.interval = INTERVAL_DFLT
# Start broadcasting immediately
self.ping_at = time.time()
elif command == "SILENCE":
self.transmit = None
elif command == "SUBSCRIBE":
self.filter = request.pop(0)
elif command == "UNSUBSCRIBE":
self.filter = None
elif command == "SEND BEACON":
self.send_beacon(request.pop(0))
elif command == "$TERM":
self.terminated = True
else:
logger.error("zbeacon: - invalid command: {0}".format(command))
def send_beacon(self, data=None):
if data is None:
data = self.transmit
try:
self.udpsock.sendto(data, (str(self.broadcast_address),
self.port_nbr))
except OSError:
logger.debug("Network seems gone, exiting zbeacon")
self.terminated = True
def send_beacon(self, data=None):
if data is None:
data = self.transmit
try:
self.udpsock.sendto(data, (str(self.broadcast_address), self.port_nbr))
except OSError as e:
# network down, just wait, it could come back up again.
# socket call errors 50 and 51 relate to the network being
# down or unreachable, the recommended action to take is to
# try again so we don't terminate in these cases.
if e.errno in [ENETDOWN, ENETUNREACH]:
pass
# all other cases, we'll terminate
else:
logger.debug("Network seems gone, exiting zbeacon")
self.terminated = True
except socket.error:
logger.debug("Network seems gone, exiting zbeacon")
self.terminated = True
