From: "John Zhou" <zjzhou@newrocktech.com>
To: "'Wolfgang Denk'" <wd@denx.de>, "'Dale Harris'" <rodmur@maybe.org>
Cc: "'Mailing List: linuxppc-dev'" <linuxppc-dev@lists.linuxppc.org>
Subject: RE: A question on kernel clock:
Date: Wed, 31 Dec 2003 12:15:50 +0800 [thread overview]
Message-ID: <000201c3cf54$c70bd5f0$b702a8c0@newrock2> (raw)
In-Reply-To: <20031230214037.77A1CC12DD@atlas.denx.de>
Sorry! It should be usleep() used in user space!
Best Regards,
John
> run on the board. But, my "nsleep()" is not exactly. So, I want to
> realize the timer mechanism of Linux used.
> (1) which timer is used for nsleep?
I have not the slightest idea. I don't know of any standard funtion
with that name - neither in user space nor in kernel code.
-----Original Message-----
From: Wolfgang Denk
Sent: Wednesday, December 31, 2003 5:41 AM
Subject: Re: A question on kernel clock:
In message <20031230210713.GC5005@maybe.org> you wrote:
>
> > > (1) which timer is used for nsleep?
> >
> > I have not the slightest idea. I don't know of any standard funtion
> > with that name - neither in user space nor in kernel code.
>
> Perhaps he means nanosleep().
Perhaps. But then the definition of nanosleep() says that it will cause
a delay of "at least the time specified in *req", i. e. the upper bound
is not even specified. But the OP seemed to assume a strict timing, so
maybe it was yet another function.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2003-12-31 4:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-23 14:46 NULL-pointer dereference in ELF core dump, and proposed fix John Whitney
2003-12-24 3:51 ` Benjamin Herrenschmidt
2003-12-30 6:34 ` A question on kernel clock: John Zhou
2003-12-30 10:22 ` Wolfgang Denk
2003-12-30 10:45 ` John Zhou
2003-12-30 18:49 ` Wolfgang Denk
2003-12-30 21:07 ` Dale Harris
2003-12-30 21:40 ` Wolfgang Denk
2003-12-31 4:15 ` John Zhou [this message]
2003-12-31 2:44 ` John Zhou
2003-12-31 2:44 ` about small dhcp client/server and http client/server John Zhou
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