[190590] in North American Network Operators' Group
Re: Leap Second planned for 2016
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Sat Jul 9 17:12:48 2016
X-Original-To: nanog@nanog.org
To: Saku Ytti <saku@ytti.fi>
From: Valdis.Kletnieks@vt.edu
In-Reply-To: <CAAeewD9LXBngWYT-RZJhC-oP7O2=BEDDjiQMmqWYJeKyyTgiUw@mail.gmail.com>
Date: Sat, 09 Jul 2016 17:12:29 -0400
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
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On Sat, 09 Jul 2016 12:14:03 +0300, Saku Ytti said:
> Check the implementation on your PC. This is why code is broken and
> people don't even know it's broken. You have to use monotonic time to
> measure passage of time, which is not particularly easy to do
> portable, in some languages.
It doesn't help that the POSIX standard doesn't represent leap seconds
anyplace, so any elapsed time calculation that crosses a leap second
is guaranteed to be wrong....
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