Ping-pong goroutine pattern

goroutine_ping_pong.go

package main

import (
	"time"
	"fmt"
)

func main() {
	var ball int
	ch := make(chan int)
	for i:= 0; i < 10; i++ {
		go func(){
			go PingPong(ch)
		}()
	}
		
	ch <- ball
	time.Sleep(1 * time.Second)	
	<-ch
}

func PingPong(ch chan int) {
	for {	
		ball := <-ch
		ball++
		fmt.Println(ball)
		time.Sleep(1 * time.Second)
		ch <- ball
	}
}