package utils

import (
	"net"
	"time"
)

func TcpPing(address string) (n int64, err error) {
	s := time.Now()
	tcpConn, err := net.Dial("tcp", address)
	n = time.Now().Sub(s).Milliseconds()
	if n == 0 {
		n = 1
	}
	if err != nil {
		return
	}
	tcpConn.Close()
	return
}