func main() {
var (
w1 = NewWorker("Worker 1")
w2 = NewWorker("Worker 2")
w3 = NewWorker("Worker 3")
g = killable.New(w1, w2, w3)
)
killable.Defer(g, func() {
fmt.Println("All workers are dead")
})
w1.Start()
w2.Start()
w3.Start()
go func() {
time.Sleep(2 * time.Second)
fmt.Println("Killing the worker group")
g.Kill(fmt.Errorf("time to die!"))
}()
if err := g.Err(); err != nil {
log.Println(err)
}
// wait for the deferreds to run
<-g.Dead()
time.Sleep(time.Second)
}
func (w *Worker) Start() {
killable.Defer(w, func() {
fmt.Printf("worker: %s: all processes complete, cleaning up\n", w.name)
})
killable.Go(w, func() error {
w.startProducer()
return w.consumer()
})
}