4.11 timeout

package main

import (
	"fmt"
	"time"
)

func main() {

	to := time.After(3 * time.Second)
	list := make([]string, 0)
	done := make(chan bool, 1)

	fmt.Println("Starting to insert items")
	go func() {
		defer fmt.Println("Exiting goroutine")
		for {
			select {
			case <-to:
				fmt.Println("The time is up")
				done <- true
				return
			default:
				list = append(list, time.Now().String())
			}
		}
	}()

	<-done
	fmt.Printf("Managed to insert %d items
", len(list))

}

/*

Starting to insert items
The time is up
Exiting goroutine
Managed to insert 1866573 items

*/