TCBSENV is not propagated to the daughter on ATTACH.

My suggestion would be to ATTACH DISP=NO and get the mother task to populate 
the field in the daughter.

Rob Scott
Rocket Software


-------- Original message --------
From: Charles Mills <charl...@mcn.org>
Date: 22/06/2018 16:50 (GMT+00:00)
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Is TCBSENV propagated to child TCB by ATTACHX

I am very familiar with TCBSENV and I don't know the answer. My "guess" would 
be that it IS propagated, but that is a guess. Easy to run an experiment if you 
wanted to.

I do know that TCBSENV is "optional" -- it is zero a lot of the time. (That is, 
if you have code that sees a lot of "random" TCB's you will see a lot of 
TCBSENV == 0.) ASXBSENV is often a fallback.

Charles


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of John McKown
Sent: Friday, June 22, 2018 7:43 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Is TCBSENV propagated to child TCB by ATTACHX

This is strictly a curiosity question. Suppose for some unspecified &
irrelevant to this discussion that my code is running under a TCB which has
a non-zero TCBSENV value. If my code were to do an ATTACHX to create a
subtask, would the new TCB have the same TCBSENV as my code, or would it be
zero? I did RTFM but did not see anything that addresses this. And an IBM
KC search got so many hits that I was completely befuddled.

--
There is no such thing as the Cloud. It is just somebody else’s computer.

Maranatha! <><
John McKown

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