Thanks. I see.
在2021年4月27日星期二 UTC+8 上午5:50:09 写道：
> On Mon, Apr 26, 2021 at 9:59 AM qinggeer Bao wrote:
> >
> > if parentCancelCtx return false, it means no cancellable ancestors
> found, then why do we need run another goroutine to listen for parent's
> cancel signals? How it can happen in wh
On Mon, Apr 26, 2021 at 9:59 AM qinggeer Bao wrote:
>
> if parentCancelCtx return false, it means no cancellable ancestors found,
> then why do we need run another goroutine to listen for parent's cancel
> signals? How it can happen in what kind of cases?
See the documentation of parentCancelCt
For learning purpose, I'm reading the source code of Golang standard
package: context.
Roughly understand the logics with one confusing point in
the propagateCancel below:
func propagateCancel(parent Context, child canceler) {
done := parent.Done()
if done == nil {
return // pare
