class Broadcast(object):
"""
A zeroconf listener that broadcasts the address for the printing service
"""
def __init__(self, address, port):
self.address = address
self.port = port
self.properties = {
'nickname': u'Printer Nickname',
'service': u'Tryton POS'
}
self.service = Zeroconf()
self._service_info = None
@property
def service_info(self):
if self._service_info is None:
self._service_info = ServiceInfo(
"_trytonpos._tcp.local.",
"%s._trytonpos._tcp.local." % socket.gethostname(),
socket.inet_aton(self.address), self.port, 0, 0,
self.properties
)
return self._service_info
def register_zeroconf(self):
"""
Register a new service for printing
"""
print("Registration of service @ %s:%s" % (self.address, self.port))
self.service.registerService(self.service_info)
def unregister_zeroconf(self):
"""
Unregister the given service
"""
print("Unregistering...")
self.service.unregisterService(self.service_info)
self.service.close()
