package usrp

import (
	"log"
	"net"
)

func NewClient(addr net.UDPAddr, laddr net.UDPAddr) Client {
	var client Client
	var err error
	client.Sock, err = net.DialUDP("udp4", &laddr, &addr)
	if err != nil {
		log.Fatal(err)
	}
	return client
}

func (c *Client) WriteFrame(buffer []byte, n int) error {
	n, err := c.Sock.Write(buffer[:n])
	if err != nil || n == 0 {
		return err
	}
	return nil
}

func (c *Client) Poll(buffer []byte, callback *func([]byte, int)) {
	go func() {
		for {
			n, err := c.Sock.Read(buffer)
			if err != nil {
				log.Println(err)
			}
			(*callback)(buffer, n)
		}
	}()
}