Re: program design problem

[Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>]

What do I think...?   I think "don't use router programs".  Yuck.


David FOXWELL wrote:
> Hi all,
>
> I'd like some expert opinion here!
>
> PgmA calls pgmB via a router with 2 obligatory parameters. The first, to tell the router what to do the second, an error message. :
>
> Caller
> Callp router( Info_Callee : ErrorMsg )
>
> In addition, input parameters and/or output parameters can be passed via pointers :
>
> Callp router( Info_Callee : ErrorMsg : ptr_in )
> Callp router( Info_Callee : ErrorMsg : *omit : ptr_out )
> Callp router( Info_Callee : ErrorMsg : ptr_in : ptr_out )
>
> So there are 4 types of call possible.
>
> The router will call the callee one of four ways like this, depending on the parameters received :
> Callp callee ( ErrorMsg )
> Callp callee ( ptr_in : ErrorMsg )
> Callp callee ( ptr_out : ErrorMsg )
> Callp callee ( ptr_in : ptr_out : ErrorMsg )
>
> The callee does not control the passing of optional parameters, or the value *omit. This is done by the router.
>
>
> The boss does not like it, and wants this :
>
> Callp router( ptr_in : ptr_out  )
>
> The obligatory parameters would just be addressed by the pointers. No optional parameters. All programs call the router and are called with 2 pointers.
>
>
> What do you think?