I believe that the "IPLINFO" rexx exec pre-dates the dynamic APF implementation and used to show the APF table using the rexx inbuilt storage function by traversing the static APF control blocks (I cannot remember if these fields were GUPI or not).
When dynamic APF was introduced, someone spent some time attempting to reverse engineer the APF control blocks to try and keep IPLINFO a pure REXX exec. I can understand the motivation to do so, however as more things in z/OS go to a second level of abstraction (eg dynamic update functionality) and use OCO control blocks this style of reverse engineering could get very difficult to maintain. If it were up to me, I would probably invest the time is composing a suite external REXX functions that could invoke supported problem state services like "CSVAPF REQUEST=LIST" and return the results in rexx stems using IRXEXCOM. Using this technique would mean that the code was using standard interfaces for the information it wants to display. Rob -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Ed Jaffe Sent: Thursday, May 3, 2018 7:03 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: AC(1) On 5/3/2018 4:47 AM, Peter Relson wrote: > ... IPLINFO itself must have been changed when dynamic APF was > introduced but chose not to use the provided programming interface > (CSVAPF REQUEST=LIST) to gain access to the data. Umm... IPLINFO is a REXX exec. As such, it cannot invoke z/OS system services unless they support a standard externally-callable interface. -- Phoenix Software International Edward E. Jaffe 831 Parkview Drive North El Segundo, CA 90245 https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.phoenixsoftware.com%2F&data=02%7C01%7CRScott%40ROCKETSOFTWARE.COM%7C8783299e0c434a59727a08d5b1201feb%7C79544c1eed224879a082b67a9a672aae%7C0%7C0%7C636609673913772392&sdata=rOBcpTImD%2FPcDWdrVSu65A1MBpcvHjLkMlkRmn9tmEw%3D&reserved=0 -------------------------------------------------------------------------------- This e-mail message, including any attachments, appended messages and the information contained therein, is for the sole use of the intended recipient(s). If you are not an intended recipient or have otherwise received this email message in error, any use, dissemination, distribution, review, storage or copying of this e-mail message and the information contained therein is strictly prohibited. If you are not a intended recipient, please contact the sender by reply e-mail and destroy all copies of this email message and do not otherwise utilize or retain this email message or any or all of the information contained therein. Although this email message and any attachments or appended messages are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by the sender for any loss or damage arising in any way from its opening or use. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ================================ Rocket Software, Inc. and subsidiaries ■ 77 Fourth Avenue, Waltham MA 02451 ■ Main Office Toll Free Number: +1 855.577.4323 Contact Customer Support: https://my.rocketsoftware.com/RocketCommunity/RCEmailSupport Unsubscribe from Marketing Messages/Manage Your Subscription Preferences - http://www.rocketsoftware.com/manage-your-email-preferences Privacy Policy - http://www.rocketsoftware.com/company/legal/privacy-policy ================================ This communication and any attachments may contain confidential information of Rocket Software, Inc. All unauthorized use, disclosure or distribution is prohibited. If you are not the intended recipient, please notify Rocket Software immediately and destroy all copies of this communication. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
