tile38/vendor/github.com/tidwall/evio/benchmarks/net-echo-server/main.go

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// Copyright 2017 Joshua J Baker. All rights reserved.
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package main
import (
"flag"
"fmt"
"log"
"net"
)
func main() {
var port int
flag.IntVar(&port, "port", 5000, "server port")
flag.Parse()
ln, err := net.Listen("tcp4", fmt.Sprintf(":%d", port))
if err != nil {
log.Fatal(err)
}
defer ln.Close()
log.Printf("echo server started on port %d", port)
var id int
for {
conn, err := ln.Accept()
if err != nil {
log.Fatal(err)
}
id++
go func(id int, conn net.Conn) {
defer func() {
//log.Printf("closed: %d", id)
conn.Close()
}()
//log.Printf("opened: %d: %s", id, conn.RemoteAddr().String())
var packet [0xFFF]byte
for {
n, err := conn.Read(packet[:])
if err != nil {
return
}
conn.Write(packet[:n])
}
}(id, conn)
}
}