C program for QDFRTVFD API
Frank Kolmann <[email protected]>
| Newsgroups | gmane.comp.lang.as400.c |
|---|---|
| Message-ID | <CAB-SQvg5e=SdzFtQQd3E3inV8NU87Bc6NqPaRNz=+bOiTsEOyg@mail.gmail.com> |
Hi I have coded a C program to get info from the QDFRTVFD API. It works and successfully retrieves Fields (incl posn and atr) and Constants from a DSPF. It is here. http://wiki.midrange.com/index.php/CQDFRTVFD However the way it is coded is very inefficient because I invoke the API for every field/constant in the DSPF. To be more efficient I would need to invoke the API only once and retain the API returned data. I want to keep the API invoke in the called function. To retain data after a C program ends is , I believe the definition of ‘memory leak’, so I cant see how I can call the API within the C program and also retain the data after the program ends. I know how to pass data back to the caller, in fact that is how the field information is returned. However for this I have memory allocated in the caller. The C program does a ‘malloc’ and here is where I am lost, as I cannot see how to pass back the data in the ‘malloc’. Any help. TIA. Frank -- This is the Bare Metal Programming IBM i (AS/400 and iSeries) (C400-L) mailing list To post a message email: [email protected] To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/c400-l or email: [email protected] Before posting, please take a moment to review the archives at http://archive.midrange.com/c400-l.