package main

import (
	"fmt"
	"http"
	"os"
)

func fetch(url string, idx, num int, ch chan int) {
	buf := make([]byte, 1<<14)
	i := 0
	for ; i < num; i++ {
		resp, _, err := http.Get(url)
		if err != nil {
			break
		}
		_, err = resp.Body.Read(buf)
		resp.Body.Close()
		if err != nil {
			break
		}
	}
	ch <- i
}

func main() {
	ch := make(chan int)

	n := 20

	for i := 0; i < n; i++ {
		go fetch("http://www.yahoo.com", i, 100, ch)
	}

	sum := 0
	for i := 0; i < n; i++ {
		sum += <-ch
		fmt.Println(sum, "opened")
		_, err := os.Open("main.go")
		if err != nil {
			fmt.Println(err)
		}
	}
	_, _, err := http.Get("http://www.google.com")
	if err != nil {
		fmt.Println(err)
	}
}