• Subject: RE: Recursive Calls
  • From: Chris Bipes <ChrisB@xxxxxxxxxxxxxxx>
  • Date: Thu, 8 Jul 1999 07:49:11 -0700

We use a parm to tell when we call program b from another program, say a.
We disable the function keys in program b when not called from a menu but
from another program using a function key.  The users are forced to return
to program a.  This keeps the users from getting lost...  This is much
simpler than trying to read/control the program stack.  One level of JUMP
only.  You can also have your parm allow for several levels, each one
holding the from program name, say 10 levels with a second parm being an
array of 10 element of 10 chars to hold each program name.

Christopher K. Bipes            mailto:ChrisB@Cross-Check.com
Sr. Programmer/Analyst          mailto:Chris_Bipes@Yahoo.com
CrossCheck, Inc.                http://www.cross-check.com
6119 State Farm Drive           Phone: 707 586-0551 x 1102
Rohnert Park  CA  94928         Fax: 707 586-1884

-----Original Message-----
From: Marc Zylka [mailto:mzylka@netpath.net]
Sent: Wednesday, July 07, 1999 8:38 PM
Subject: Recursive Calls

I'm curious about how most people handle possible recursive calling
We're running V4R1 and coding in RPG/ILE.  We have a situation where program
is called from a menu.  Program A creates a workorder and then calls Program
the workorder maintenance program.  From the workorder maintenance program,
one can use F6 to create another workorder, thus calling Program A.

So, the questions:  When Program A calls Program B, can I remove it from the
program stack?  Can Program B remove it from the stack when it realizes
that Program A needs to be called?  If program B can remove Program A from
the stack, what happens when Program B ends and Program A is no longer
there to go back to?  If any of this can be done, which manual outlines how
this is done?

Thanks in advance,
Marc Zylka ( mzylka@netpath.net )
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