Re: Looking into the Program stack

Kent wrote:
>We have a program running for a couple of hours (7). When looking into the
>call stack it seem to use 'internal statements' quite a lot. The statement
>'.DRVRK06' is frequently used followed by procedure 'QDBGETKY' in QSYS. Is
>there any way to connect this statement to where in the src code the
>program loops? (which file that's beeing opened freq.?)
>
>(It's a RPG III program)

Well, OK, I'll try to answer it anyways.  (I'll assume that
this is one of only a few programs you haven't yet converted
to RPG IV, right? :-)

Look at the 6th file in your programs file specs.  Your
frequently used statement is a READE without factor 1.

You could always compile your program with GENOPT(*LIST) and
see which statements call .DRVRK06.

Here's some magic lifted directly out of the RPG III compiler
source:

================================================================
  .DRVABCD IS THE BASE  WHERE .DRV IS ALWAYS PRESENT
    A IS F FOR FILE OPERATION, OR R FOR RECORD OPERATION
    B IS ON OF THE FOLLOWING
       R - READ
       P - READP
       E - READE
       K - READE WITHOUT FACTOR 1 (USE GETK NEXT =)
       N -  READC
       Q -  REDPE
       L - REDPE WITHOUT FACTOR 1 (USE GETK NEXT =)
       W - WRITE IF NOT REL REC NUM OUTPUT
       V - WRITE REL REC NUM OUTPUT
       C - CHAIN
       S - SETLL
       G - SETGT
       U - UPDATE
       D - DELETE EXCEPT IF FACT ONE PRESENT
       Y - DELETE OPERATION WITH FACTOR ONE
       X - EXFMT
     CD IS THE NUMBER OF THE FILE
  EXAMPLE - .DRVRC02  CHAIN OPERATION BY RECORD NAME FILE TWO
            .DRVFW01  WRITE OPERATION TO FILE NUMBER ONE
================================================================

Cheers!  Hans

Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com


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