goroutine sync

gistfile1.txt

package main

import "fmt"

func gPrint(ch chan<- string, s string, sig chan struct{}) {
	for {
		select {
		case ch <- s:
			{
				// do nothing
			}
		case <-sig:
			{
				return
			}
		}

	}

}

func Sync() {
	cha := make(chan string)
	chb := make(chan string)
	chc := make(chan string)
	sig := make(chan struct{})
	go gPrint(cha, "A", sig)
	go gPrint(chb, "B", sig)
	go gPrint(chc, "C", sig)
	for i := 0; i < 10; i++ {
		fmt.Println(i, ":--")
		fmt.Println(<-cha)
		fmt.Println(<-chb)
		fmt.Println(<-chc)
	}
	close(sig)
}
func main(){
  Sync()
}