On Thu, 27 Aug 2020 16:10:01 +0000, Rob Scott wrote: >From what I can see, the original script was a REXX exec and from Chapter 5 in >the SDSF User Guide : > >"Adding the SDSF host command environment with ISFCALLS > >Using SDSF with REXX requires that you add a host command environment prior to >any other SDSF host environment commands. > But that in turn depends on ISFCALLS's availability in the function package with which Rexx is started. That's true for TMP, UNIX, and IRXJCL. It may be untrue for minor products, perhaps from ISVs.
What is the adverse consequence of omitting ISFCALLS( 'OFF' )? Integrity? I'm inclined to omit it, especially near the end of an EXEC. I suspect the case worst for performance is multiple ISFCALLS ON ... OFF pairs bracketing short sections of code. ISFCALLS appears not to have a Result code defined for "ISFCALLS already active" to enable the coder of a Rexx subroutine to restore the status on entry. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
