RE: mix bag, now recompile required due to service program change .

[Rob Berendt <rob@xxxxxxxxx>]

Good point.  Sorry if I labled ILE as meaning RPG ILE.

How do I handle 'previous signature support'?  As far as I know the 
procedure interface didn't change, I just added more procedures to the 
service program.





MccalliM@Midas-Kapiti.com on 01/21/2000 01:10:55 PM
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Subject:        RE: mix bag, now recompile required due to service program 
change .

>Maybe we should now forward this on to the RPG list?  Or were you 
>trying to bring up a point that the 400 is not immune to this kind 
>of behavior?

It should stay here, because it's not RPG-specific; it doesn't matter
what language the procedures in your service program are written in.

><snip>
>Which brings up a good point, what will happen on the AS/400 in this
>scenario?  If I have a service program that I change, I don't' have to
>recompile my programs, right?  So in the AS/400 somewhat immune
>to this type of problem?
><endsnip>

If only the internal logic of  a procedure changes, you shouldn't have
to recompile the programs that use the service program.  If the external
interface of a procedure changes, obviously programs using that
procedure will have to be recompiled.

The other thing to watch out for is a service program's signature
changing.  If you're not using previous signature support a "signature
violation" will bring your program down in a nasty heap.  So maybe
that's the closest thing to a windows GPF.  Mind you, you'll never get
that "Module <unknown>" bollocks on the AS/400.  A swift dig into the
joblog will soon tell you where the problem lies.

That's what Windows needs: joblogs!  (Then we can use even more disk
space to hold all the messages.)

Cheers,

Martin.

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