golang buffer reuse test

main.go

// vim:set sw=4 sts=4:
package main

import (
    "fmt"
    "net"
    "os"
    "time"

    "github.com/hshimamoto/go-session"
)

func recv() {
    serv, err := session.NewServer(":9999", func(conn net.Conn) {
	defer conn.Close()
	buf := make([]byte, 10)
	n := 0
	for {
	    r, err := conn.Read(buf[n:])
	    if err != nil {
		break
	    }
	    if r == 0 {
		break
	    }
	    fmt.Println("recv")
	    fmt.Println(buf[n:n+r])
	    n += r
	    if n == len(buf) {
		fmt.Println("reach limit")
		break
	    }
	}
	fmt.Println("all")
	fmt.Println(buf[0:n])
	fmt.Println("done")
    })
    if err != nil {
	fmt.Println(err)
	os.Exit(1)
    }
    serv.Run()
}

func send() {
    time.Sleep(100 * time.Millisecond)
    conn, err := session.Dial("127.0.0.1:9999")
    if err != nil {
	fmt.Println(err)
	os.Exit(1)
    }
    defer conn.Close()
    for i := 0; i < 20; i++ {
	conn.Write([]byte{byte(i)})
	time.Sleep(100 * time.Millisecond)
    }
}

func main() {
    go recv()
    send()
    time.Sleep(100 * time.Millisecond)
}