Files
wordclock/scripts/multicastUDP_receiver.py

53 lines
1.2 KiB
Python

from datetime import datetime
import logging
import queue
import socket
import struct
import sys
from pathlib import Path
LOG_PATH = Path("C:/temp/wordclock_log.txt")
def setup_logging():
FORMAT = "%(asctime)s %(message)s"
logging.basicConfig(format=FORMAT, level=logging.INFO)
logger = logging.getLogger()
handler = logging.FileHandler(LOG_PATH)
handler.setLevel(logging.INFO)
logger.addHandler(handler)
return logger
def get_ip_address():
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(("1.1.1.1", 80))
return s.getsockname()[0]
logger = setup_logging()
multicast_group = "230.120.10.2"
server_address = ("", 8123)
# Create the socket
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
# Bind to the server address
sock.bind(server_address)
logging.info("Start")
# Tell the operating system to add the socket to the multicast group
# on all interfaces.
group = socket.inet_aton(multicast_group)
mreq = struct.pack("4s4s", group, socket.inet_aton(get_ip_address()))
sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
logger.info("Ready")
# Receive/respond loop
while True:
data, address = sock.recvfrom(1024)
data_str = data.decode("utf-8").strip()
logger.info(data_str)