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To: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Thu, 22 Dec 2011 18:04:14 +0100."
	<86vcp8sfld.fsf@ds4.des.no>
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Date: Thu, 22 Dec 2011 17:08:51 +0000
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Cc: arch@freebsd.org, freebsd-arch@freebsd.org, threads@freebsd.org,
	Hans Petter Selasky <hselasky@c2i.net>
Subject: Re: [Patch] C1X threading support
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In message <86vcp8sfld.fsf@ds4.des.no>, =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= wr
ites:

>There is no such thing as a kernel in the C standard.  All it knows
>about is the implementation and the program.  The best solution would
>probably have been a timescale that counts the time elapsed since the
>start of the program.

That is requiring far more than necessary:  All that is needed is
a monotonic timescale, such as the, precisely named, CLOCK_MONOTONIC
timescale POSIX introduced to solve the exact same kind of issues.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.