RE: Recursive Calls--what I use

[Tim McCarthy <TimM@xxxxxxxxxxxxxxxxxx>]

This will work but handling exceptions adds overhead - a consideration
if this is to be widely implemented - plus you get a lot of extra &*&%
in your job log. It also doesn't cater for situations where the called
program is library qualified (not a big deal I admit). I'll take Carl up
on his offer to post it on his BBS.

> -----Original Message-----
> From: Bob Crothers [SMTP:bob@cstoneindy.com]
> Sent: Friday, July 09, 1999 2:10 AM
> To:   'MIDRANGE-L@midrange.com'
> Subject:      RE: Recursive Calls--what I use
> 
> Here is the little CL program I use to tell if a program is already in
> 
> the call stack.  Pass it a 1 character result field and the program 
> name.  If it is NOT in the call stack, the a blank will be returned. 
>  If it IS in the stack, then 'A' is returned.
> 
> Regards,
> Bob Crothers
> 
> PGM        PARM(&RESULT &PGMNAME)
>  
>              DCL        VAR(&RESULT) TYPE(*CHAR) LEN(1) 
>              DCL        VAR(&PGMNAME) TYPE(*CHAR) LEN(10) 
>  
>              CHGVAR     VAR(&RESULT) VALUE(' ') 
>  
>              SNDPGMMSG  MSG(XXXX) TOPGMQ(*PRV (&PGMNAME)) 
>              MONMSG     MSGID(CPF0000) EXEC(RETURN) /* Program is + 
>                           NOT in the call stack */ 
>  
>              CHGVAR     VAR(&RESULT) VALUE('A') /* Program IS in the +
> 
>                           call stack */ 
>  
>              ENDPGM
> 
> 
> 
> -----Original Message-----
> From: zylka.marc@westpoint-stevens.com 
> [SMTP:zylka.marc@westpoint-stevens.com]
> Sent: Friday, July 09, 1999 7:36 AM
> To:   MIDRANGE-L@midrange.com
> Subject:      Re:Recursive Calls
> 
> 
> 
> Tim, I'd love to have a copy of that command.  That should be the 
> easiest way to
> limit
> someone from calling program B again.
> 
> Thanks,
> Marc Zylka, 228-5267
> 
> 
> ____________________Reply Separator____________________
> Subject:    RE: RE: Recursive Calls
> Author: <MIDRANGE-L@midrange.com>
> Date:       7/8/99 6:08 PM
> 
> Hey, I have a little command that can check to see whether a given
> program is in the current jobs stack. I used to use it to prevent
> recursion for a menuing system I had once. Anyone want a copy?
> Tim
> 
> 
> 
> 
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