Re: Single Source CICS/Batch



?? Ursprüngliche Nachricht

Am 28.10.06, 12:29:27, schrieb "Vanroy - Cleymans" <vanroy@xxxxxxxxxx>
zum Thema Single Source CICS/Batch:


Does anybody has experience with writung the Cobol source code once
and
running the load module(s) in Cics and Batch environment (on Z/OS)

thanks,

Willy Vanroy

hello Willy

every day :-)

for Batch and CICS you can use a main source. Inside that you can call
subroutines for both environments. Some times you need a flag to mark
the different between batch and CICS.

One problem: inside CICS you can not use any FD, SD related
statements. You can do something like this

CICS / batch main --> call calculation-routine with:

if CICS-flag -> exec CICS commands
if batch-flag -> call i/o for file access batch

with the CICS-precompiler parm NOLINKAGE your PROCEDURE DIVISION USING
was not expanded with using dfhcommarea and dfheiblk. The copies are
insertet.

You can make your program able to use CICS-commands if you are using:

if CICS-flag -> exec CICS address eib...

make your programs dynamic by using CALL WS-PGM-NAME instead of CALL
'PGMNAME' and the DYNAM directive at cobol compile time.

Use autoinstall exit to install programms to CICS PCT

DB2 is a very, very strange problem. You can use the identical source
in CICS and batch, but in CICS the compiler was CICS-driven changed to
NODYNAM and therefore the CICS DB2-Api was statically linked and that
can not run within a TSO (IKJEFT0?) or IMS environment. But in batch
you can use the DYNAM compile-option to use the same loadmodul for TSO
and IMS bacause the DB2-Api was dnamicly called.

DB2-Api is the modul DSNHALI, it is different in every environment!


Its not easy its tricky

Einen schoenen Tag
Andreas Lerch



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