I know of no REXX facility to enumerate environments, but z/OS Version 2 Release 4 TSO/E REXX Reference describes the relevant environment, LINKPGM.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Paul Gilmartin [0000000433f07816-dmarc-requ...@listserv.ua.edu] Sent: Thursday, December 17, 2020 12:45 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: IODF address On Thu, 17 Dec 2020 15:59:45 +0000, Seymour J Metz wrote: >Look at the address statement and at the descriptions of the available >environments. > Is there a Rexx facility to enumerate "available environments"? I suspect not, but it would be a good CbtTape.org candidate. ADDRESS SYSCALL has a good selection of common C interfaces, but not assembler/IODF. CMS Rexx has a callable services library (CSL): https://www.ibm.com/support/knowledgecenter/en/SSB27U_6.4.0/com.ibm.zvm.v640.dmsb1/cslfunc.htm (I haven't used it.) Perhaps more general; more cumbersome. Something similar for z/OS Assembler Services might be a good CbtTape.org candidate. Farther afield, Regina has the Generic Call Interface (GCI) which enables you to define any entry point in any system library as an external Rexx function. GCI is built into Regina on many platforms. I haven't used it. Some interfacing may be required. OoRexx? ______________________________________ >From: Steve Horein >Sent: Thursday, December 17, 2020 7:36 AM > >I think it's just ignorance on my part, but I haven't had much luck calling >assembler services from Rexx - only some of those mentioned in the >"Callable Services for High Level Languages". There are a LOT of those >services that look extremely helpful for getting precise information, but I >just don't know how to take advantage of them. > >On Thu, Dec 17, 2020 at 3:41 AM Rob Scott wrote: > >> If something like hyperswap has moved the IODF to another device, then you >> can use the IOCINFO "IODFINFO" service and get the information from the >> IODI structure that is returned : >> >> Mapping macro is IOSDIODI in MACLIB >> Rexx interface left as an exercise for the student? >> -----Original Message----- >> From: Steve Horein >> Sent: 16 December 2020 17:00 >> >> I am able to determine the IODF unit address from IPAIODFU in IPA. >> However, this value becomes stale if the address changes when the storage >> folks move disk around. I can see the MVS command DISPLAY IPLINFO accounts >> for those changes in message IEE254I: >> >> IEE254I hh.mm.ss IPLINFO DISPLAY text -- gil ---------------------------------------------------------------------- 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
