Example #1
0
func ListenUDP(address v2net.Address, port v2net.Port, option ListenOption) (*UDPHub, error) {
	if option.Concurrency < 1 {
		option.Concurrency = 1
	}
	udpConn, err := net.ListenUDP("udp", &net.UDPAddr{
		IP:   address.IP(),
		Port: int(port),
	})
	if err != nil {
		return nil, err
	}
	if option.ReceiveOriginalDest {
		fd, err := internal.GetSysFd(udpConn)
		if err != nil {
			log.Warning("UDP|Listener: Failed to get fd: ", err)
			return nil, err
		}
		err = SetOriginalDestOptions(fd)
		if err != nil {
			log.Warning("UDP|Listener: Failed to set socket options: ", err)
			return nil, err
		}
	}
	hub := &UDPHub{
		conn:   udpConn,
		queue:  NewUDPPayloadQueue(option),
		option: option,
		cancel: signal.NewCloseSignal(),
	}
	go hub.start()
	return hub, nil
}
Example #2
0
func NewTimedUserValidator(hasher protocol.IDHash) protocol.UserValidator {
	tus := &TimedUserValidator{
		validUsers: make([]*protocol.User, 0, 16),
		userHash:   make(map[[16]byte]*indexTimePair, 512),
		ids:        make([]*idEntry, 0, 512),
		hasher:     hasher,
		running:    true,
		cancel:     signal.NewCloseSignal(),
	}
	go tus.updateUserHash(updateIntervalSec * time.Second)
	return tus
}
Example #3
0
func NewFileLogWriter(path string) (*FileLogWriter, error) {
	file, err := os.OpenFile(path, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
	if err != nil {
		return nil, err
	}
	logger := &FileLogWriter{
		queue:  make(chan string, 16),
		logger: log.New(file, "", log.Ldate|log.Ltime),
		file:   file,
		cancel: signal.NewCloseSignal(),
	}
	go logger.run()
	return logger, nil
}
Example #4
0
func NewStdOutLogWriter() LogWriter {
	return &StdOutLogWriter{
		logger: log.New(os.Stdout, "", log.Ldate|log.Ltime),
		cancel: signal.NewCloseSignal(),
	}
}