Remove third_party/twisted_8_1

third_party/twisted_8_1/twisted/pair/rawudp.py

-# -*- test-case-name: twisted.pair.test.test_rawudp -*-
-# Copyright (c) 2001-2004 Twisted Matrix Laboratories.
-# See LICENSE for details.
-
-#
-
-"""Implementation of raw packet interfaces for UDP"""
-
-import struct
-
-from twisted.internet import protocol
-from twisted.pair import raw
-from zope.interface import implements
-
-class UDPHeader:
-    def __init__(self, data):
-
-        (self.source, self.dest, self.len, self.check) \
-                 = struct.unpack("!HHHH", data[:8])
-
-class RawUDPProtocol(protocol.AbstractDatagramProtocol):
-    implements(raw.IRawDatagramProtocol)
-    def __init__(self):
-        self.udpProtos = {}
-
-    def addProto(self, num, proto):
-        if not isinstance(proto, protocol.DatagramProtocol):
-            raise TypeError, 'Added protocol must be an instance of DatagramProtocol'
-        if num < 0:
-            raise TypeError, 'Added protocol must be positive or zero'
-        if num >= 2**16:
-            raise TypeError, 'Added protocol must fit in 16 bits'
-        if num not in self.udpProtos:
-            self.udpProtos[num] = []
-        self.udpProtos[num].append(proto)
-
-    def datagramReceived(self,
-                         data,
-                         partial,
-                         source,
-                         dest,
-                         protocol,
-                         version,
-                         ihl,
-                         tos,
-                         tot_len,
-                         fragment_id,
-                         fragment_offset,
-                         dont_fragment,
-                         more_fragments,
-                         ttl):
-        header = UDPHeader(data)
-        for proto in self.udpProtos.get(header.dest, ()):
-            proto.datagramReceived(data[8:],
-                                   (source, header.source))