Function tcping

utils/tcping.go:49–57

(ipport string)

}

func tcping(ipport string) (int64, error) {
	t := time.Now().UnixMilli()
	conn, err := net.DialTimeout("tcp", ipport, time.Second*10)
	if err != nil {
		return 9999, err
	}
	_ = conn.Close()
	return time.Now().UnixMilli() - t, nil
}