[PATCH] Cygwin: pty: Set input_available_event only for cygwin pipe.

[Corinna Vinschen]

On Jan 19 00:00, Takashi Yano via Cygwin-patches wrote:
> Hi Corinna,
> 
> On Fri, 15 Jan 2021 18:26:31 +0900
> Takashi Yano wrote:
> > - cat exits immediately in the following senario.
> >     1) Execute env CYGWIN=disable_pcon script
> >     2) Execute cmd.exe
> >     3) Execute cat in cmd.exe.
> >   This is caused by setting input_available_event for the pipe for
> >   non-cygwin app. This patch fixes the issue.
> > ---
> >  winsup/cygwin/fhandler_tty.cc | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc
> > index e4993bf31..0b9901974 100644
> > --- a/winsup/cygwin/fhandler_tty.cc
> > +++ b/winsup/cygwin/fhandler_tty.cc
> > @@ -394,7 +394,8 @@ fhandler_pty_master::accept_input ()
> >  	}
> >      }
> >  
> > -  SetEvent (input_available_event);
> > +  if (write_to == get_output_handle ())
> > +    SetEvent (input_available_event);
> >    ReleaseMutex (input_mutex);
> >    return ret;
> >  }
> > -- 
> > 2.30.0
> > 
> 
> I would be happy if you could review this patch as well.

Sorry, I missed that one!  Pushed.


Thanks,
Corinna