On Wed, 4 May 2022 20:12:11 -0400, Phil Smith III \ wrote:

>Shmuel wrote:
>.   ...
>>That is, SUBCOM is available from the TSO and MVS host command
>environments."
>
>Oh. Well, Rob had written:
>>When invoked outside of SDSF, as your example shows, it returns a non-zero
>return code to indicate that it is not been invoked from SDSF NP %.
>
>>The reason for this is that users can code rexx that can be called from
>both environments and can take decisions based on the RC.
> 
I'm trying to visualize the Venn diagram for two predicates and four regions:
    In SDSF vs. not in SDSF
    ISFCALLS(ON) vs. ISFCALLS(OFF)

What distinct behaviors characterize those four regions?

Also, in 
<https://www.ibm.com/docs/en/zos/2.5.0?topic=language-adding-sdsf-host-command-environment-isfcalls>:
    SSTYPE=JES2
    requests that SDSF process JES2 rather than determining whether to process 
JES2 or JES3.

I'd expect that there be a complementary:
    SSTYPE=JES3

-- 
gil

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