Robert

> ... or you can just use the Modify (F) or STOP (P) command.

That "just" is suspicious. The program needs to support the MODIFY/STOP 
interface and not all programs do. It took IMS "for ever" to provide this 
alternative to the WTOR interface and I vaguely remember it took CICS quite 
a while before you could "talk" to it with MODIFY commands.

Obviously a program has to have logic to respond to MODIFY commands and, 
perhaps less obviously, to a STOP command. 

Only CANCEL is/can be independent of the program.

The starting point for research into MODIFY/STOP support is the following:

z/OS MVS Programming: Authorized Assembler Services Guide, SA22-7608-15, 
2.3 Communicating with a program 

(EXTRACT, QEDIT)

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/iea2a8b0/2.3

I used to use MODIFY support extensively in my mickey-mouse programs using 
the VTAM API. It's not at all difficult.

Chris Mason

On Tue, 28 Sep 2010 22:26:29 -0400, Robert A. Rosenberg 
<[email protected]> wrote:

>At 16:03 +0200 on 09/28/2010, Peter Nuttall wrote about Re: Really
>dumb IPL question:
>
>>Setting this up as a
>>started task and then explaining to Ops/Automation that the only way to
>>stop it was to Cancel the Started task was not fun (against their
>>operational procedures) ....
>
>Shutting down a Started Task can be done in the way other STCs are
>controlled. You can issue a WTOR which allows the request to shut
>down to be sent or you can just use the Modify (F) or STOP (P)
>command . If MODIFY is good enough for TCP, TSO, etc, it should be
>good enough for your RYO STC. It sounds like those Ops/Automation
>types are brain dead and do not understand what they are doing.
 

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