30 lines
1.3 KiB
Python
30 lines
1.3 KiB
Python
#!/usr/bin/env python3
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from re import T
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import socket
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import time
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server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
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# Enable port reusage so we will be able to run multiple clients and servers on single (host, port).
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# Do not use socket.SO_REUSEADDR except you using linux(kernel<3.9): goto https://stackoverflow.com/questions/14388706/how-do-so-reuseaddr-and-so-reuseport-differ for more information.
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# For linux hosts all sockets that want to share the same address and port combination must belong to processes that share the same effective user ID!
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# So, on linux(kernel>=3.9) you have to run multiple servers and clients under one user to share the same (host, port).
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# Thanks to @stevenreddie
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# server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
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# Enable broadcasting mode
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server.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
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server.bind(("192.168.1.101", 5555))
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# Set a timeout so the socket does not block
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# indefinitely when trying to receive data.
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server.settimeout(0.2)
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message = "count: "
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count = 0
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while True:
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count = count + 1
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# msg = message.join(str(count)).encode("utf8")
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msg = f"{message} {count}".encode("utf8")
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server.sendto(msg, ("255.255.255.255", 37020))
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# print("message sent!", flush=True)
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time.sleep(1) |