Re: Generic RPG File Handler for File I/O using OA

Mohammad,

I don't really understand your goal, nor the problem you may have with the
traditional RPG operation codes for DB I/O. But you could review the C
procedures, which are documented in the IBM i Knowledge Center, which are
exported from service program QC2IO. You could do a search on function
_Ropen, for example.

The C routines are functionally comparable to the traditional RPG operation
codes, except Library and File names are passed as parameters, so they can
be resolved at runtime, as opposed to the RPG method, which requires
Library and File names to be hard coded and resolved at compile time.

Given the C routines, you could write utility procedures that resolve
Library and File at runtime. For example, I wrote a generic procedure that
checks for the existence of any record in any file, given a File name and
Key value.

The C routines perform a little faster than the RPG RLA alternatives.