[PATCH] Cygwin: pipe: Restore non-blocking mode which was reset for non-cygwin app.

[Corinna Vinschen]

On Mar 12 08:17, Takashi Yano wrote:
> Subject: [PATCH v4] Cygwin: pipe: Make sure to set read pipe non-blocking for
>  cygwin apps.
> 
> If pipe reader is a non-cygwin app first, and cygwin process reads
> the same pipe after that, the pipe has been set to bclocking mode
> for the cygwin app. However, the commit 9e4d308cd592 assumes the
> pipe for cygwin process always is non-blocking mode. With this patch,
> the pipe mode is reset to non-blocking when cygwin app is started.
> 
> Addresses: https://cygwin.com/pipermail/cygwin/2024-March/255644.html
> Fixes: 9e4d308cd592 ("Cygwin: pipe: Adopt FILE_SYNCHRONOUS_IO_NONALERT flag for read pipe.")
> Reported-by: wh <wh9692@protonmail.com>
> Reviewed-by: Corinna Vinschen <corinna@vinschen.de>
> Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
> ---
>  winsup/cygwin/fhandler/pipe.cc          | 63 +++++++++++++++++++++++++
>  winsup/cygwin/local_includes/fhandler.h |  3 ++
>  winsup/cygwin/spawn.cc                  | 34 +------------
>  3 files changed, 68 insertions(+), 32 deletions(-)

Looks good, please push.


Thanks,
Corinna