Twisted: UDP socket not closed.

Hi.

I have to send UDP packets very often. Approx twice in a second.
But socket is not closed after sending packet. So soon i bump into
open sockets\files limit.
How to close socket after sending data?

Python 2.5, Twisted

class DataClient(DatagramProtocol):

def __init__(self, address, datagram = "PONG"):
self.address, self.datagram = address, datagram

def startProtocol(self):
self.transport.socket.setsockopt(socket.SOL_SOCKET, \
socket.SO_BROADCAST, True)
self.transport.connect(self.address[0], self.address[1])
self.sendDatagram()

def sendDatagram(self):
self.transport.write(self.datagram)
debug("Data client: Sending to %s" % repr(self.address))

while True:
clientprotocol = DataClient(("255.255.255.255", 5999), data)
reactor.listenUDP(0, clientprotocol).stopListening()

knight@rknb:~$ ls -la /proc/15429/fd/ | wc -l
43
knight@rknb:~$ ls -la /proc/15429/fd/ | wc -l
44
knight@rknb:~$ ls -la /proc/15429/fd/ | wc -l
44
knight@rknb:~$ ls -la /proc/15429/fd/ | wc -l
44
knight@rknb:~$ ls -la /proc/15429/fd/ | wc -l
45
knight@rknb:~$ ls -la /proc/15429/fd/ | wc -l
45
knight@rknb:~$ ls -la /proc/15429/fd/ | wc -l
46

Thanks in advance.
.

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