drawing-machine/startBluetooth.py

#!/usr/bin/env python3
"""
Starts the Bluetooth server for the drawing machine. Taken from the
multiserver example in the nOBEX git repo.
"""
import os
import sys
import signal
import traceback
from threading import Thread

from opp import OPPServer

def thread_serve(serv_class, arg):
	t = Thread(target=serve, args=(serv_class, arg), daemon=True)
	t.start()
	return t

def serve(serv_class, *args, **kwargs):
	server = serv_class(*args, **kwargs)
	socket = server.start_service()
	while True:
		try:
			server.serve(socket)
		except:
			traceback.print_exc()

def signal_handler(signal, frame):
	print() # newline to move ^C onto its own line on display
	sys.exit(0)

def main():
	opp_conf = "./received"

	signal.signal(signal.SIGINT, signal_handler)

	# obexd conflicts with our own OBEX servers
	os.system("killall obexd")

	t = thread_serve(OPPServer, opp_conf)

	# wait for completion (never)
	t.join()

	return 0


if __name__ == "__main__":
	sys.exit(main())