Method completeTask

parallel_download.go:38–48

(task *downloadTask)

}

func (pd *ParallelDownload) completeTask(task *downloadTask) {
	pd.mu.Lock()
	pd.taskMap[task.index] = task
	pd.mu.Unlock()
	go func() {
		select {
		case pd.taskNotifyCh <- task:
		case <-pd.doneCh:
		}
	}()
}

func (pd *ParallelDownload) popTask(index int) *downloadTask {
	pd.mu.Lock()