Date: Sun, 15 Oct 2006 15:30:31 GMT From: Bruce Evans <bde@zeta.org.au> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/104436: [PATCH] sys/sem.h should include sys/types.h Message-ID: <200610151530.k9FFUVkP015105@freefall.freebsd.org>
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The following reply was made to PR kern/104436; it has been noted by GNATS.
From: Bruce Evans <bde@zeta.org.au>
To: Cheng-Lung Sung <clsung@FreeBSD.org>
Cc: FreeBSD-gnats-submit@FreeBSD.org, freebsd-hackers@FreeBSD.org,
freebsd-current@FreeBSD.org, freebsd-bugs@FreeBSD.org
Subject: Re: kern/104436: [PATCH] sys/sem.h should include sys/types.h
Date: Mon, 16 Oct 2006 01:21:59 +1000 (EST)
On Sun, 15 Oct 2006, Cheng-Lung Sung wrote:
> System: FreeBSD.csie.nctu.edu.tw 6.1-STABLE FreeBSD 6.1-STABLE #9: Thu May 11 14:31:45 CST 2006 root@FreeBSD.csie.nctu.edu.tw:/home/usr.obj/usr/src/sys/FREEBSD i386
>
>> Description:
> - sys/sem.h has included sys/ipc.h, which includes sys/_types.h
> but it (and its including files) does not include sys/types.h
> - therefore, in sys/sem.h struct semid_ds declares "time_t sem_otime;" ...etc
> - if we only compile a program which do not include sys/types.h, it will fail.
Including sys/types.h would add lots of namespace pollution which
sys/ipc.h and sys/sem.h are trying hard to avoid. sem.h is trying too
hard -- POSIX requires it to declare time_t (and pid_t, key_t and size_t,
which it already declares).
Bruce
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