udp.py 文件源码

python
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项目:llama 作者: dropbox 项目源码 文件源码
def tos_reflect(self, bufsize=512):
        """Intended to be the sole operation on a LLAMA reflector.

        Args:
            bufsize: (int) number of bytes to read from socket
                     It's not advisable to change this.
        """
        data, addr = self.recvfrom(bufsize)
        try:
            udpdata = UdpData._make(struct.unpack(self.FORMAT, data))
        except struct.error:
            logging.warn('Received malformed datagram of %s bytes. '
                         'Discarding.', len(data))
            # Don't reflect invalid data
            return
        self.setsockopt(socket.IPPROTO_IP, socket.IP_TOS, udpdata.tos)
        self.sendto(data, addr)
        self.processed += 1
        if self.processed % 512 == 0:
            logging.info('Processed packets: %s', self.processed)
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