ssdp.py 文件源码

def run(self):
        self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        if hasattr(socket, "SO_REUSEPORT"):
            try:
                self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
            except socket.error as le:
                # RHEL6 defines SO_REUSEPORT but it doesn't work
                if le.errno == ENOPROTOOPT:
                    pass
                else:
                    raise

        addr = socket.inet_aton(SSDP_ADDR)
        interface = socket.inet_aton('0.0.0.0')
        cmd = socket.IP_ADD_MEMBERSHIP
        self.sock.setsockopt(socket.IPPROTO_IP, cmd, addr + interface)
        self.sock.bind(('0.0.0.0', SSDP_PORT))
        self.sock.settimeout(1)

        while True:
            try:
                data, addr = self.sock.recvfrom(1024)
                self.datagram_received(data, addr)
            except socket.timeout:
                continue
        self.shutdown()