SSDP is now a proper protocol, and doesn't require things too be

setup immediately..  This does mean we have to queue up packets...

This means our caller doesn't have to know about SSDP_ADDR anymore...

Though we should still provide a function to start us up..

[git-p4: depot-paths = "//depot/": change = 1270]

SSDP.py

@@ -39,6 +39,20 @@ class SSDPServer(DatagramProtocol):
 	known = {}
 	maxage = 7 * 24 * 60 * 60
 
+	def __init__(self):
+		# XXX - no init?
+		#DatagramProtocol.__init__(self)
+		self.__notifyqueue = []
+
+	def startProtocol(self):
+		self.transport.joinGroup(SSDP_ADDR)
+		# so we don't get our own sends
+		self.transport.setLoopbackMode(0)
+		self.doNotify = self.realdoNotify
+		for i in self.__notifyqueue:
+			self.doNotify(i)
+		self.__notifyqueue = None
+
 	def doStop(self):
 		'''Make sure we send out the byebye notifications.'''
 
@@ -142,7 +156,12 @@ class SSDPServer(DatagramProtocol):
 		self.transport.write(resp, (SSDP_ADDR, SSDP_PORT))
 		self.transport.write(resp, (SSDP_ADDR, SSDP_PORT))
 
-	def doNotify(self, st):
+	def queueDoNotify(self, st):
+		self.__notifyqueue.append(st)
+
+	doNotify = queueDoNotify
+
+	def realdoNotify(self, st):
 		"""Do notification"""
 
 		log.msg('Sending alive notification for %s' % st)