RE: RPG ILE Problems (Activation Groups)

[LuisMaldonado <lmaldonado@xxxxxxxx>]

Hi,
I try your example and filed always returns    "init"   ?   why ? 

DSPLY  new value for program field    init 
DSPLY  new value for program field    init
DSPLY  new value for program field    init
DSPLY  new value for program field    init
DSPLY  new value for program field    init
 

Lluis   
________________________________________
De: rpg400-l-bounces@xxxxxxxxxxxx [rpg400-l-bounces@xxxxxxxxxxxx] en nombre de Barbara Morris [bmorris@xxxxxxxxxx]
Enviado el: viernes, 04 de marzo de 2011 17:04
Para: rpg400-l@xxxxxxxxxxxx
Asunto: Re: RPG ILE Problems (Activation Groups)

On 3/4/2011 10:06 AM, LuisMaldonado wrote:
> Hi,
> I create a module CRTRPGMOD X
> Then I create the service program:
> CRTSRVPGM    X   EXPORT (*ALL) ACTGRP (*CALLER)
> Then I execute this CLLE:
> CALL PGMB (this RPGLE uses the service program x)
> RCLRSC
> CALL PGMB (this RPGLE uses the service program x)
> If  I understood well the second call to PGMB must crash !!!!!
> No problem occurs, Why?
> Thank you.

Luis, the call to your service program will not necessarily fail.  It
will fail if it uses a file and the file is left open when the service
program procedure returns.

Simple test:

CL program PGMA:
    CALL PGMB
    CALL PGMB
    RCLRSC
    CALL PGMB

RPG module B, create as module B:
      D fld             s             10a   inz('init')
      D c               pr
       /free
           dsply 'new value for program field' '' fld;
           c();
           return;

RPG module C, create as module C:
      D fld             s             10a   inz('init')
       /free
           dsply 'new value for srvpgm field' '' fld;
           return;

crtsrvpgm C module(C)
crtpgm PGMB module(b) bndsrvpgm(C)

call pgma

Here is the DSPLY output from my programs:
      DSPLY  new value for program field    init
        my answer: pgm 1
      DSPLY  new value for srvpgm field    init
        my answer: srv 1

      DSPLY  new value for program field    pgm 1
        my answer: pgm 2
      DSPLY  new value for srvpgm field    srv 1
        my answer: srv 2

      RCLRSC happens here

      DSPLY  new value for program field    init
        my answer: pgm 1a
      DSPLY  new value for srvpgm field    srv 2
        my answer: srv 3

For the second call, both the program and srvpgm remembered the values
of their variables "fld".

The RCLRSC caused the program's static storage to be reinitialized on
the third call, so the program's variable "fld" had its inz value
'init'.  The RCLRSC had no effect on the service program's static
storage, so the srvpgm's variable "fld" still had it's new value "srv 2"
that I gave on the DSPLY.

If you change the source for C to look like this, you will see the error:

      Fqsysprt   o    f   80        printer
      D prtDs           ds            80
      D   line                        80    inz('printer line')
      D fld             s             20a   inz('init')
       /free
           dsply 'new value for srvpgm field' '' fld;
           write qsysprt prtDs;
           return;

Remember to sign off and back on after you change the code for srvpgm C.
  The system will remember the old version of the service program even
if you delete it.



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