package devices

// [impllnx    dsn~low-level-abstraction~0>>utest]

import "golang.org/x/sys/unix"

// TransmitterLinux is the Linux implementation for the Transmitter interface
type TransmitterLinux struct {
	socket int
}

// Send implements sending packets on Linux
func (tl TransmitterLinux) Send(data []byte) error {
	err := unix.Send(tl.socket, data, 0)
	return err
}

// Close closes the transmitter socket
func (tl TransmitterLinux) Close() error {
	return unix.Close(tl.socket)
}

// CreateTransmitter creates the Transmitter object
func CreateTransmitter(device string) (Transmitter, error) {
	ret := TransmitterLinux{}
	var err error
	ret.socket, err = unix.Socket(unix.AF_PACKET, unix.SOCK_RAW, unix.ETH_P_ALL)
	if err != nil {
		panic(err)
	}
	return ret, err
}

// CreateReceiver creates and starts the Receiver instance
func CreateReceiver(device string) (Receiver, error) {
	//TODO
	return nil, nil
}