From: Manfred Spraul <manfred@colorfullife.com>
To: Alex Riesen <fork0@users.sourceforge.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: POSIX message queues, libmqueue: mq_open, mq_unlink
Date: Sat, 17 Apr 2004 12:49:08 +0200 [thread overview]
Message-ID: <40810BA4.50803@colorfullife.com> (raw)
Alex wrote:
>Ok. It's just that every provider of the _kernel_ interface to user
>space has now to take care of being posix-compliant. Write the code for
>checks, iow. That is not the case for "open", for instance.
>And besides, with the patch applied the kernel is also posix compliant,
>isn't it?
>
No. E.g. mq_notify(,&{.sigev_notify=SIGEV_THREAD) cannot be implemented
in kernel space. And sys_mq_getsetattr isn't posix compliant either -
the user space library must implement mq_getattr and mq_setattr on top
of the kernel API.
The kernel API was designed to be simple and flexible. Perhaps we want
to extend the kernel implementation in the future, and then a leading
slash could be used to indicate that we are using the new features.
--
Manfred
next reply other threads:[~2004-04-17 10:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-17 10:49 Manfred Spraul [this message]
2004-04-17 11:16 ` POSIX message queues, libmqueue: mq_open, mq_unlink Alex Riesen
-- strict thread matches above, loose matches on Subject: below --
2004-04-16 8:11 Alex Riesen
2004-04-16 16:13 ` Ulrich Drepper
2004-04-16 21:38 ` Alex Riesen
2004-04-16 22:17 ` Ulrich Drepper
2004-04-16 22:22 ` Chris Wright
2004-04-16 23:43 ` Alex Riesen
2004-04-16 23:56 ` Chris Wright
2004-04-17 8:20 ` Alex Riesen
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