package helper

import (
	"log"
	"net"
)

// CreateListen 监听
func CreateListen(serverAddr string) (*net.TCPListener, error) {
	tcpAddr, err := net.ResolveTCPAddr("tcp", serverAddr)
	if err != nil {
		log.Println("创建监听出错:" + serverAddr)
		return nil, err
	}
	tcpListen, err := net.ListenTCP("tcp", tcpAddr)
	return tcpListen, err
}

// CreateConn 创建连接
func CreateConn(serverAddr string) (*net.TCPConn, error) {
	tcpAddr, err := net.ResolveTCPAddr("tcp", serverAddr)
	if err != nil {
		log.Println("创建连接出错:" + serverAddr)
		return nil, err
	}
	conn, err := net.DialTCP("tcp", nil, tcpAddr)
	return conn, err
}