write-ups-challenges-2024-2025/tic-tac-toes/spawner.py
2024-11-25 22:33:42 +01:00

48 lines
1.3 KiB
Python

import socket
from threading import Thread
import subprocess
import sys
import argparse
# How to use:
# Set the host and port above
# Invoke the spawner like this
# python3 spawner.py -h <host> -p <port> <your arguments to spawn here>
def on_new_client(conn, addr, cmd):
print(f"New connection with {addr}")
file = conn.makefile('w')
p = subprocess.Popen(cmd, stdout=file, stdin=file)
conn.close()
def main():
parser = argparse.ArgumentParser(description="Spawn some processes over a socket")
parser.add_argument('--host', type=str, required=True, nargs=1, help='The host ip to listen on')
parser.add_argument('--port', type=int, required=True, nargs=1, help='The host port to listen on')
parser.add_argument('rest', nargs=argparse.REMAINDER)
args = parser.parse_args()
s = socket.socket()
host = args.host[0]
port = args.port[0]
cmd = args.rest
print(f"Command spawn each time: {cmd}")
s.bind((host, port))
s.listen(5)
print(f"Now listening for connections on {host}:{port}")
try:
while True:
conn, addr = s.accept()
t = Thread(target=on_new_client, args=(conn,addr, cmd))
t.run()
except KeyboardInterrupt:
pass
s.close()
print("Goodbye")
if __name__ == '__main__':
main()