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To: John Polstra <jdp@polstra.com>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 29 Nov 2005 13:42:56 PST."
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Date: Tue, 29 Nov 2005 23:02:21 +0100
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Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/sys/sys time.h src/sys/kern kern_time.c 
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In message <XFMail.20051129134256.jdp@polstra.com>, John Polstra writes:
>On 28-Nov-2005 Poul-Henning Kamp wrote:
>> I've looked a lot at this in the ISC eventlib (bind8) but there is
>> no way to save one timestamp per iteration without getting creeping
>> imprecision in the timer controlled events.
>
>Would it help if we had something like select/poll that took an
>absolute time (a deadline) instead of a timeout -- as is done by
>pthread_cond_timedwait?

There are indeed many ways this could be done, but it won't help
much in practice when libisc is written to be portable over a wide
range of operating systems.

-- 
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.