def __init__(self, certificatesDirectory=None):
"""
Initializes the NetworkManager's state.
Args:
certificatesDirectory: the directory where the files server.crt and server.key are.
"""
self.__connectionPool = GenericThreadSafeDictionary()
self.__outgoingDataQueue = GenericThreadSafePriorityQueue()
if (not reactor.running):
self.__networkThread = TwistedReactorThread()
else:
self.__networkThread = None
self.__outgoingDataThread = OutgoingDataThread(
self.__outgoingDataQueue)
self.__connectionThread = ConnectionMonitoringThread(
self.__connectionPool)
self.__certificatesDirectory = certificatesDirectory
def __allocateConnectionResources(self, callbackObject):
"""
Allocates the resources associated to a new connection (only if necessary)
Args:
callbackObject: The object that will process all the incoming packages.
Returns:
a tuple (queue, thread), where queue and thread are the incoming data queue
and the incoming data processing thread assigned to this new connection.
"""
c = None
for connection in self.__connectionPool.values():
if (connection.getCallback() == callbackObject):
# Everything is allocated. Let's reuse it.
c = connection
break
if c != None:
return (c.getQueue(), c.getThread())
else:
queue = GenericThreadSafePriorityQueue()
thread = IncomingDataThread(queue, callbackObject)
return (queue, thread)
