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
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.


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