mirror of
https://github.com/uhi22/pyPLC.git
synced 2024-11-10 01:05:42 +00:00
43 lines
No EOL
1.3 KiB
Python
43 lines
No EOL
1.3 KiB
Python
|
|
# explanation of socket handling:
|
|
# https://realpython.com/python-sockets/
|
|
#
|
|
|
|
import socket
|
|
import select
|
|
|
|
|
|
|
|
print("Press Ctrl-Break for aborting")
|
|
|
|
TCP_IP = 'fe80::e0ad:99ac:52eb:85d3'
|
|
TCP_PORT = 15118 # The port for CCS
|
|
BUFFER_SIZE = 1024 # Normally 1024
|
|
|
|
ourSocket = socket.socket(socket.AF_INET6, socket.SOCK_STREAM, 0)
|
|
ourSocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
|
|
ourSocket.bind((TCP_IP, TCP_PORT))
|
|
ourSocket.listen(1)
|
|
print("listening on port " + str(TCP_PORT))
|
|
|
|
# example from https://stackoverflow.com/questions/5308080/python-socket-accept-nonblocking
|
|
read_list = [ourSocket]
|
|
while True:
|
|
# The select() function will block until one of the socket states has changed.
|
|
# We specify a timeout, to be able to run it in the main loop.
|
|
print("before select")
|
|
readable, writable, errored = select.select(read_list, [], [], 0.5)
|
|
for s in readable:
|
|
if s is ourSocket:
|
|
client_socket, address = ourSocket.accept()
|
|
read_list.append(client_socket)
|
|
print("Connection from", address)
|
|
else:
|
|
data = s.recv(1024)
|
|
if data:
|
|
print("received data:", data)
|
|
else:
|
|
print("connection closed")
|
|
s.close()
|
|
read_list.remove(s) |