def close(self):
"""Ends the background threads, and prevent this instance from
servicing further queries."""
if globals()['_GLOBAL_DONE'] == 0:
globals()['_GLOBAL_DONE'] = 1
self.notifyAll()
self.engine.notify()
self.unregisterAllServices()
mcastsocket.leave_group( self.socket, dns._MDNS_ADDR )
self.socket.close()
def main(ip):
"""Create a multicast socket, send a message, check it comes back"""
port = PORT
sock = mcastsocket.create_socket( (ip,port), loop=False )
mcastsocket.join_group( sock, GROUP )
try:
payload = query % locals()
while True:
sock.sendto( payload, 0, (GROUP,PORT))
#print 'Waiting for responses'
rs,wr,xs = select.select( [sock],[],[], 20.0 )
if rs:
data, addr = sock.recvfrom( 2000 )
handle( sock, data, addr )
return 1
finally:
mcastsocket.leave_group( sock, GROUP )