def __init__(self, clock, serverKey, factory):
self._clock = clock
self._serverKey = serverKey
self._factory = factory
self._received = IntervalSet()
self._weAcked = IntervalSet()
self._sent = IntervalSet()
self._theyAcked = IntervalSet()
self._sentMessages = set()
self._previousID = 0
self._fragment = []
self._congestion = Chicago()
self._sentMessageAt = {}
self._delayedCalls = {}
self._messageQueue = []
self._enqueuedMessages = set()
self._deferred = defer.Deferred()
self._nonce = 0
self._theirLastNonce = 0
self._counter = 1
self._ourStreamEnd = None
self._theirStreamEnd = None
self._reads = self._writes = None
self._done = False
self._outstandingMessages = 0
self._onDone = []
