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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Inserting Calendar.Time in a database
Date: 08 Aug 2004 12:03:34 +0100
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Date: 2004-08-08T12:03:34+01:00
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"Martin Dowie" <martin.dowie@btopenworld.com> writes:

> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message
> news:13x45njobjvn3.yhisk87dws3.dlg@40tude.net...

> > But seriously, there are requirements on time stamps Ada.Calendar.Time
> does
> > not meet:
> >
> > 1. Not monotonic
> 
> It can be monotonic. I'd be a little surprised if it wasn't on
> implementations that also provided Ada.Real_Time but I'm sure
> someone will now point to examples where this isn't true ;-)

Under VxWorks, certainly for GNAT <= 5.02, Ada.Real_Time.Time is
identical to Ada.Calendar.Time (calls clock_gettime()), and you can
alter Ada.Calendar.Time using clock_settime().

So what to do if you need to synchronize your clocks over a
distributed system? (you understand, this is the problem we had to
solve, not a request for help!)

-- 
Simon Wright                               100% Ada, no bugs.