Good to know - would be nice if there were a way to extend the interval or 
prevent it - perhaps with an environment variable.


Lionel B. Dyck <sdg><
Website: https://www.lbdsoftware.com

"Worry more about your character than your reputation.  Character is what you 
are, reputation merely what others think you are." - John Wooden

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Bruce Hewson
Sent: Saturday, June 27, 2020 11:16 PM
To: [email protected]
Subject: Re: Use of BPXWUNIX and CP - a weekend quandary.

Hello Lionel,

TSO OMVS design issue - the RUNNING/INPUT switch is to simulate TTY on a 3270 
block mode terminal.

for reference, and possible solution:-

https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.bpxa400/misout.htm

At times you may find that the status indicator changes to INPUT before you 
have received any or all of your output. Don't worry—the shell is producing 
output and storing it in a buffer. Just press the Refresh function key and the 
shell will display more output on your screen. (If you don't have a Refresh 
function key, you can press a <Clear> key, <PA2>, or <PA3>.)

The reason for this behavior is that TSO/VTAM provides no way to wait for 
keyboard input and TTY output at the same time under TSO.

On the z/OS UNIX System Services Web site, there is some code (poll.c) that 
lets an OMVS user remain in RUNNING mode indefinitely. This improves usability, 
but it can have a significant performance impact if many people use it. You can 
download the code by going to the Tips section:
http://www-03.ibm.com/systems/z/os/zos/features/unix/

Regards
Bruce

On Sat, 27 Jun 2020 10:12:55 -0500, Lionel B Dyck <[email protected]> wrote:

>I'm running a rexx script under the OMVS shell and have an anomaly that 
>I need help with.
 <snip>
>
>
>When there are more (I don't know what that number is yet but in excess 
>of
>30 but less than 100) the shell input status changes from RUNNING to 
>INPUT and will not proceed until I hit ENTER.  I've waited and ENTER is a must.
>
<snip>
>
>Thanks for any tips/hints/suggestions.
>

>Lionel B. Dyck <sdg><
>Website:  <https://www.lbdsoftware.com> https://www.lbdsoftware.com

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