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Date:      Thu, 29 Jun 2006 21:02:58 +0800
From:      David Xu <davidxu@freebsd.org>
To:        freebsd-standards@freebsd.org
Subject:   Re: standards/99517: Missing SIGRTMIN and SIGRTMAX signals
Message-ID:  <200606292102.58497.davidxu@freebsd.org>
In-Reply-To: <1151374371.6337@timur.home.bat.ru>
References:  <1151374371.6337@timur.home.bat.ru>

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On Tuesday 27 June 2006 10:12, Timur I. Bakeyev wrote:
> >Number:         99517
> >Category:       standards
> >Synopsis:       Missing SIGRTMIN and SIGRTMAX signals
> >Confidential:   no
> >Severity:       non-critical
> >Priority:       medium
> >Responsible:    freebsd-standards
> >State:          open
> >Quarter:
> >Keywords:
> >Date-Required:
> >Class:          change-request
> >Submitter-Id:   current-users
> >Arrival-Date:   Tue Jun 27 02:20:15 GMT 2006
> >Closed-Date:
> >Last-Modified:
> >Originator:     Timur I. Bakeyev
> >Release:        FreeBSD 6.1-STABLE i386
> >Organization:
> >Environment:
>
> System: FreeBSD 6.1-STABLE #0: Tue Jun 20 02:38:12 CEST 2006
>     root@timur.home.bat.ru:/usr/src/sys/i386/compile/COMMON
>
> >Description:
>
> It was a great surprise to me to find out that signal.h (or, in fact,
> sys/signal.h) doesn't contain definition of such a basic POSIX signal
> related constants as SIGRTMIN and SIGRTMAX.
>
> They described for example here: http://en.wikipedia.org/wiki/SIGRTMIN
>
> Moreover it's even mentioned in file itself:
>
> /*
>  * XXX missing SIGRTMIN, SIGRTMAX.
>  */
>
> Absence of this variables makes porting of POSIX-compliant applications
> harder as well as lowers general POSIX-compliance of FreeBSD.
>
> Actually, signal.h looks quite scary with all that:
> /*
>  * XXX missing SIG_HOLD.
>  */
>
> /*
>  * XXX missing SIGEV_THREAD.
>  */
>
> >How-To-Repeat:
>
>  less /usr/include/sys/signal.h
>
> >Fix:
>
> It'll be nice if that definitions were added to the signal.h ASAP. I don't
> see any strong reason not to have them.
>
> With regards,
> Timur Bakeyev.
>

6.1 does not support realtime signal, only -CURRENT supports it, if
you define it, and kernel is not functional, won't this break application
too ?

David Xu




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