htx.py 文件源码

def _startSSDPNotifier(addr):
    msgHeader = [
            'NOTIFY * HTTP/1.1\r\n',
            'HOST: 239.255.255.250:1900\r\n',
            "NTS: ssdp:alive\r\n"
        ]

    msg = ''.join(msgHeader) + gen_ssdp_content(addr, 'NT')

    while True:
        print "Sending M-NOTIFY..."
        sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
        sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 32)
        sock.sendto(msg, (ssdp_addr, ssdp_port))
        sock.close()
        del sock

        time.sleep(6)