From: "David Engraf" <engraf.david@netcom-sicherheitstechnik.de>
To: "'Ingo Molnar'" <mingo@elte.hu>
Cc: "'Arjan van de Ven'" <arjan@infradead.org>, <linux-kernel@vger.kernel.org>,
       "'Andrew Morton'" <akpm@osdl.org>
Subject: Re: [PATCH] Win32 equivalent to GetTickCount systemcall (i386)
Date: Tue, 6 Dec 2005 13:06:36 +0100
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> * David Engraf <engraf.david@netcom-sicherheitstechnik.de> wrote:
> 
> > > (and.. wait.. isn't that called gettimeofday() )
> >
> > Not really gettimeofday is based on the date and time, but what if the
> > user changes the date, the counter would also change.
> 
> see 'man clock_gettime', and CLOCK_MONOTONIC:
> 
>        CLOCK_MONOTONIC
>               Clock that cannot be set and  represents  monotonic  time
> since
>               some unspecified starting point.
> 
> and it has microsecond resolution.
> 
> 	Ingo

You're right, clock_gettime with CLOCK_MONOTONIC seems to be date/time
independent. For a GetTickCount implementation it is absolutely enough.

Thanks
David Engraf


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