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()
})
}
func (w *Worker) startProducer() {
// producer (non-blocking)
killable.Go(w, func() error {
defer close(w.ch)
var i int64
for {
select {
case w.ch <- i:
i++
case <-w.Dying():
return killable.ErrDying
}
if i > 100 {
return fmt.Errorf("worker: %s: limit reached", w.name)
}
}
return nil
})
}