Re: Using Xt intrinsics with Ada?

[Ted Dennison <dennison@telepath.com>]

In article <3A7A84C3.2486A6CF@avitech.de>,
  Juergen Fischer <juergen.fischer@avitech.de> wrote:

> but from other C programs we know that it doesn't take much CPU load.
> So we suppose that the CPU load is caused by
> Ada tasking in combination with the XtAppMainLoop.

That doesn't make much sense to me. Furthermore, it sounds a lot the the
"it must be Ada's fault" knee-jerk reactions I always get when I mention
Ada in the context of a problem to OS library people.

But in any event, it should be trivial to check this assumption. Just
replace your Ada "main" with a C "main", and see what happens. I'll bet
you a virtual beer that you get the exact same behavior. :-)


> Who has already used XtAppMainLoop within an Ada program?

I have. Did it on the old SunOS using a VADS compiler, and once on the
Harris Nighthawk. The only real problem I can remember was that we had
to make sure that only the XtAppMainLoop task made any X calls (and I
think there are X bindings available that remove that restriction).

--
T.E.D.

http://www.telepath.com/~dennison/Ted/TED.html


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