pingponggo

gistfile1.txt

package main

import (
	"fmt"
	"math/rand"
	"time"
)

type Ball struct{}

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

	go func() {
		for b := range ch {
			fmt.Println("PING...")
			pause := rand.Intn(5)
			time.Sleep(time.Duration(pause) * time.Second)
			ch <- b
		}
	}()

	c := 0
	ball := Ball{}
	go func() {
		for {
			ch <- ball
			fmt.Println("PONG")
			pause := rand.Intn(5)
			time.Sleep(time.Duration(pause) * time.Second)
			ball = <-ch
			c++
		}
	}()

	for {
		time.Sleep(10 * time.Second)
		if c == 10 {
			return
		}
	}

}