[PATCH] Cygwin: nice: align return value and errno with POSIX and Linux

[Corinna Vinschen]

On Nov 27 18:58, Christian Franke wrote:
> No "Fixes:" in comment because the current behavior emulates old Linux
> behavior which is possibly not a bug.
> 
> SUS 1997 to POSIX 2024 require to return the new nice value.
> https://pubs.opengroup.org/onlinepubs/007908799/xsh/nice.html
> https://pubs.opengroup.org/onlinepubs/9799919799/functions/nice.html
> https://man7.org/linux/man-pages/man2/nice.2.html
> 
> FreeBSD still returns 0:
> https://man.freebsd.org/cgi/man.cgi?query=nice&sektion=3
> 
> Ancient Unix returned nothing :-)
> http://man.cat-v.org/unix_10th/2/nice
> 
> -- 
> Regards,
> Christian
> 

> From 40d17d32e4c0a7dc69f39e57f3d0f9f07fca5c75 Mon Sep 17 00:00:00 2001
> From: Christian Franke <christian.franke@t-online.de>
> Date: Wed, 27 Nov 2024 18:54:37 +0100
> Subject: [PATCH] Cygwin: nice: align return value and errno with POSIX and
>  Linux
> 
> Return new nice value instead of 0 on success.
> Set errno to EPERM instead of EACCES on failure.
> 
> Signed-off-by: Christian Franke <christian.franke@t-online.de>
> ---
>  winsup/cygwin/release/3.6.0 |  4 ++++
>  winsup/cygwin/syscalls.cc   | 11 ++++++++++-
>  2 files changed, 14 insertions(+), 1 deletion(-)

Pushed.


Thanks,
Corinna