Golang 高性能UDP Server实现

package main

import (
    "net"
    "fmt"
    "os"
)

// 限制goroutine数量
var limitChan = make(chan bool,1000)


// UDP goroutine 实现并发读取UDP数据
func udpProcess(conn *net.UDPConn) {

    // 最大读取数据大小
    data := make([]byte,1024)
    n,_,err := conn.ReadFromUDP(data)
    if err != nil {
        fmt.Println("failed read udp msg,error: " + err.Error())
    }
    str := string(data[:n])
    fmt.Println("receive from client,data:" + str)
    <- limitChan
}


func udpServer(address string) {
    udpAddr,err := net.ResolveUDPAddr("udp",address)
    conn,err := net.ListenUDP("udp",udpAddr)
    defer conn.Close()
    if err != nil {
        fmt.Println("read from connect failed,err:" + err.Error())
        os.Exit(1)
    }

    for {
        limitChan <- true
        go udpProcess(conn)
    }
}

func main() {
    address := "0.0.0.0:8080"
    udpServer(address)
}