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From: DWParsons@T-Online.de (Dave Parsons)
Newsgroups: comp.lang.ada
Subject: Re: ANN: GNAT 3.15p binary for OS/2 available
Date: Tue, 26 Nov 2002 07:37:22 +0100
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On Mon, 25 Nov 2002 08:08:22 UTC, tmoran@acm.org wrote:

> > I can only find 'Base_Monotonic_Clock :=3D3D Base_Clock;' in 5wosprim.adb
> > which is for NT and not used for OS/2. So, OS/2 would appear at first
> > glance not to have that bug
>   Excellent!  The problem lay in attempting to keep the two Windows clocks
> in synch, and one monotonically increasing.  If one task called Clock, and
> that caused a resynch, then Base_Ticks, but not Base_Monotonic_Clock,
> would be reset, thus causing a backward movement of Monotonic_Clock, and a
> consequent increase in any other task's outstanding "delay"s.  Perhaps OS2
> doesn't have such a mess.  The symptom was that in a multitasking program
> where one task called Clock, and one of the clocks was adjusted manually or
> automatically, another task's "delay" would be markedly lengthened.
> > do you have a number for the bug report
>   I just sent it in Saturday.

Ok thanks for the explanation. I'll have a look at the OS/2 implementation
in a bit more detail to see if it could suffer from a similar problem.

Dave