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"""The display part of a simply two process chat app."""
# This file has been placed in the public domain.
from __future__ import print_function
import zmq
from zmq.utils.win32 import allow_interrupt
def main(addrs):
context = zmq.Context()
control = context.socket(zmq.PUB)
control.bind('inproc://control')
updates = context.socket(zmq.SUB)
updates.setsockopt(zmq.SUBSCRIBE, "")
updates.connect('inproc://control')
for addr in addrs:
print("Connecting to: ", addr)
updates.connect(addr)
def interrupt_polling():
"""Fix CTRL-C on Windows using "self pipe trick"."""
control.send_multipart(['', 'quit'])
with allow_interrupt(interrupt_polling):
message = ''
while message != 'quit':
message = updates.recv_multipart()
if len(message) < 2:
print('Invalid message.')
continue
account = message[0]
message = ' '.join(message[1:])
if message == 'quit':
print('Killed by "%s".' % account)
break
print('%s: %s' % (account, message))
if __name__ == '__main__':
import sys
if len(sys.argv) < 2:
print("usage: display.py <address> [,<address>...]")
raise SystemExit
main(sys.argv[1:])
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