Re: [PATCH 1/2] sigaction.2: HISTORY: SA_NOCLDSTOP wasn't added in POSIX.1-2001

[Alejandro Colomar <alx@kernel.org>]

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Hi Thomas,

On Tue, Feb 27, 2024 at 07:12:16PM +0100, Thomas Orgis wrote:
> Am 25. Februar 2024 12:53:15 MEZ schrieb Alejandro Colomar <alx@kernel.org>:
> >It already existed in POSIX.1-1996, according to just a few lines above.
> 
> ... it existing in 1990, not 1996? Or is 

Oops, I misread.  It's my accident in the commit message.  :)

> 
> >@@ -1020,7 +1020,6 @@ .SH HISTORY
> > POSIX.1-1990 specified only
> 
> a typo? I am by no means an expert on POSIX revisions.
> More interesting in this context seems to be the subtle change
> in SA_NOCLDSTOP behaviour with XSI enabled noted in the spec
> 
>   https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigaction.html
> 
>   SA_NOCLDSTOP[CX]  Do not generate SIGCHLD when children
>   stop [XSI] or stopped children continue. 
> 
> Should this detail be documented, too, for this flag? Get SIGCHLD only
> if continuing, not when stopping unless with XSI?

Yup, I also noticed that.  I'm no expert in that, so I would be more
comfortable if you or someone else send a patch.

Have a lovely night!
Alex

-- 
<https://www.alejandro-colomar.es/>
Looking for a remote C programming job at the moment.

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