On 2011-07-20 06:58, Kirk Wolf wrote:
I apologize if this is a bit O.T., but the audience on this list seems to be
a little more focused than IBM-MAIN for this kind of question....
What, ranting seems to distract them from the subject at hand? :) (This
is one of the reasons I've been quiet over the past few years on lists:
the signal-to-noise ratio, and lack of spare time.)
I was curious about what would happen in the following scenario:
Suppose you have a LE enabled "main" program written in C, that is normally
invoked as a job step via "EXEC PGM=". The program accepts parameters in
PARM=, but you can also set LE options for it (as with other LE programs) by
putting them in the PARM before the first slash, e.g.: EXEC
PGM=CLEPROG,PARM='HEAP(12M)/arg1 arg2".
Now, suppose I have a small non-LE assembler program (call it "ASMXCTL"),
that does a "XCTL EP=CLEPROG", passing the original R1 (PARM=)......
What would happen if I did this? -
EXEC PGM=ASMXCTL,PARM='HEAP(12M)/arg1 arg2'
Does the "main" initialization of "CLEPROG" process the LE options as
before?
Yes. At a prior place of employment, there is actually C and assembler
code that does this - dynamically generating HEAP settings based on
various product options and then building the PARM that was passed to a
subtask via ATTACH.
(I inherited this code; the address space was a C main task with C and
assembler subtasks fired off by invoking an ATTACH assembler subroutine,
and those subtasks attached C and assembler subtasks. Should I mention
that some of the assembler tasks were also not LE-enabled? Talk about
the wide possibility of S0C4s. It was always on my list to convert to
threads, but you know how priorities change on a whim from outside factors.)
Later,
Ray
--
M. Ray Mullins
Roseville, CA, USA
http://www.catherdersoftware.com/
German is essentially a form of assembly language consisting entirely of
far calls heavily accented with throaty guttural sounds. ---ilvi
French is essentially German with messed-up pronunciation and spelling.
--Robert B Wilson
English is essentially French converted to 7-bit ASCII. ---Christophe
Pierret [for Alain LaBonté]
