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From: Mats Weber <Mats.Weber@elca-matrix.ch>
Subject: Re: Tasks and C/C++ code.
Date: 1998/11/13
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Newsgroups: comp.lang.ada
Date: 1998-11-13T00:00:00+00:00
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"Barry L. Dorough" wrote:
> 
> So, if I understand correctly defining the pragma to C in the declaration part of
> the task body will give me multiple binding to the same function if there are
> multiple tasks?

Yes. There is only one copy of the C function anyway. Putting the pragma
Interface/Import in a package, in a procedure, in a task, or in multiple
places does not change this and has _exactly_ the same effect, except
for the visibility of the function in your Ada code.

> If this is correct what happens when you write an Ada procedure/function in a
> task?  Does each task get it own copy?  I hope the answer is yes or I have
> completely misunderstood the Ada tasking model!

Yes, every instance of the task type gets its own copy, conceptually.
But the code of the local procedure will exist only once in the
object/executable file, and in memory, even if multiple calls are
simultaneously active.