cygwin 3.3.x: another problem that may be related to pipes

[Takashi Yano]

On Mon, 15 Nov 2021 11:37:30 -0500
Ken Brown wrote:
> On 11/15/2021 11:08 AM, Corinna Vinschen wrote:
> > The idea was to do change to synchronous pipes only for 3.4.  I have a
> > bit of headaches to change the pipes to synchronous as bug fix on the
> > 3.3 branch.  Your first ideas might be better there...
> 
> I agree.  I'd rather fix the bugs with asynchronous pipes on the 3.3 branch and 
> only switch to synchronous pipes for 3.4.

I also agree with you.

So, currently we have three options.

1) Call CancelIo() immediately after STATUS_PENDING like my patch.
2) Wait for pipe handle after STATUS_PENDING for nonblocking mode
   like Ken's patch.
3) Create evt event even for nonblocking mode as Corinna mentioned.

Which is the best solution, do you think?

-- 
Takashi Yano <takashi.yano@nifty.ne.jp>