×
The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.
Stick the data in a user space and obtain a pointer to the space. You can then spin through the space as often as you like. Replace the data as you desire.
-----Original Message-----
From: C400-L [mailto:c400-l-bounces@xxxxxxxxxxxx] On Behalf Of Frank Kolmann
Sent: Wednesday, September 10, 2014 2:54 AM
To: c400-l
Subject: [C400-L] C program for QDFRTVFD API
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: C400-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options,
visit:
http://lists.midrange.com/mailman/listinfo/c400-l
or email: C400-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives at
http://archive.midrange.com/c400-l.
midrange.com
