The exec can't access SDSF, and I'm not sure it is possible for it to access the spool equivalent. It basically restricted to what's available in address TSO.
-----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Bob Bridges Sent: Tuesday, August 15, 2023 4:20 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: How can a REXX data stack pass information from a program? I'm coming late to this thread, and this solution (if it even works) is really going around your elbow to get to your thumb, but: 1) You said the REXX exec is running in batch, right? 2) Call the COBOL program 3) The COBOL program displays the value to any DD 4) The exec invokes the SDSF interface, looks up the job it's running under, and watches that DD until the value appears. Not sure that'd work; I haven't thought through the details. But if it doesn't, maybe you could call the COBOL program in a previous step and THEN your exec could look up the value in SDSF. (I probably should have sent this to you off-line, to avoid embarrassing myself.) --- Bob Bridges, robhbrid...@gmail.com, cell 336 382-7313 /* ...this is a certain truth, that nothing ever did, or can have the least desire or tendency to ascend to heaven, but that which came down from heaven; and therefore nothing in the heart can pray, aspire, and long after God, but the Spirit of God moving and stirring in it. -William Law (1686-1761), _The Spirit of Prayer_ */ -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Schmitt, Michael Sent: Tuesday, August 15, 2023 13:49 The z/OS TSO REXX User's Guide says (https://www.ibm.com/docs/en/zos/2.4.0?topic=stack-using-data): The data stack [...] can pass information between REXX execs and other types of programs in a TSO/E or non-TSO/E address space. Because of the data stack's unique characteristics, you can use the data stack specifically to [...] Share information between an exec and any program running in MVS(tm). My question is how can the data stack be used to share information between an exec and a program? I don't see this in either the User's Guide or Reference. What I'm trying to do is pass an 8 character field from a COBOL program to a calling exec. The constraints are: * Exec is running in the TSO/E address space in a batch job * ISPF may not be used * COBOL program is called via TSO CALL * No assembler * No REXX programming services (e.g. IRXEXCOM) * Any calls to other programs would also be under the same constraints. So the calling path is PGM=IKJEFT01 > REXX exec > TSO CALL *(program) > COBOL program Please don't say, run using ISPF, it's easy! Or, call program with LINKMVS, it's easy! Or, use the IRXECOM variable access routine, it is easy! I know it is, but it can't be used in this case. It has to be the way I describe. Hence my problem. Trying a cheat like "call some other program to gain the address of a REXX variable" won't work because it would hit the same constraint; it can't be called by LINK or ATTACH, so the parm is one-way, and would have no way to pass back the address. Nor will it work to try to pass back an address from the COBOL program in a return code; it will get truncated. (I suppose one option is to call the COBOL program multiple times, passing back the data as a return code one or two bytes a time, but if it came to that I have a better last-resort work-around.) The User's Guide is hinting that the data stack can be used to pass data to or from another program. So how can a COBOL program put data on the data stack? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
