Messages in this thread | | | Date | Wed, 07 Jan 2009 10:24:34 -0700 (MST) | Subject | Re: [ntpwg] Bug: Status/Summary of slashdot leap-second crash on new years 2008-2009 | From | "M. Warner Losh" <> |
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In message: <49647E0F.9030008@davidnewall.com> David Newall <davidn@davidnewall.com> writes: : Linas Vepstas wrote: : > Currently, the Linux kernel keeps time in UTC. This means : > that it must take special actions to tick twice when a leap : > second comes by. : : Except it doesn't have to tick twice. Refer to : http://lkml.org/lkml/2009/1/7/78 in which I show that a time_t (what : time() returns) counts leap seconds (According to Bernstein this is what : UTC means), and using zoneinfo, the library processes leap seconds : correctly.
This is *NOT* POSIX time_t. In order to be posix compliant, you can't do what Bernstein suggests. You can be non-complaint and deal it with zoneinfo.
: I just realised that the Notes in man 2 time are confusing and probably : unnecessary. Suffice to say that (assuming correctly configured : zoneinfo) time() returns the number of seconds elapsed since start 1970.
That's not POSIX complaint.
Warner
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