The Name/Token pairs are maintained in storage whose attributes and location depend on the level of the pair :
(o) System Pointed to by ECVTNTTP (o) ASID Pointed to by ASSBNTTP (o) Task Pointed to by STCBNTTP IEANTRT processing is simply a linked-list lookup with a final compare on the header to see if anything has changed (and if so iterate) - this requires no special processing and therefore is not provided by PC routine - and believe me this is a *good* thing as the programming environment restrictions are relaxed. Create/Delete processing will require locks - and is not suprising that PC routine is used. As for the 2nd pair of PC routines, my guess is that they are for 64-bit callers. Rob Scott Rocket Software, Inc 275 Grove Street Newton, MA 02466 617-614-2305 [email protected] -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of [email protected] Sent: 12 January 2009 21:30 To: [email protected] Subject: Name Token Pairs Hello, I am familiar with using the name Token Pair services of z/os. After looking at Z/OS Diagnosis Reference (SG22-7588-06), I discovered an anomoly with name Token Pairs relating to its PC routine numbers. According to Z/OS Diagnosis Reference states that name Token Pairs reserves four PC Numbers for Delete And Create Processing but None for Retrieval (IEANTRT). Name Token Services IEANTCRS 00326 Name TOken Services IEANTDLS 00327 Create Name/Token Pair IEAN4CRS 0034E Delete Name/Token Pair IEAN4DLS 0034F This discovery prompted me to ask these question regarding name Token Services. If There is no PC number reserved for IEANTRT (Name Token retrieval) where does ZOS store the name Token data ? Is the Name Token Data chained from the CVT ? Is the Name Token Data chained by a System Address Space ? What about the csae of a system level name token pair ? The second part of this Question: Why is there two PC Numbers for Create Service and Two PC Numbers for Delete Service ? Thanks Paul D'Angelo ____________________________________________________________ Turn your passion into a profession. Click here to find a film school near you. http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw1Tzi6GremF6qmC0g5vTycztjSo0AIOFC3PlPNwqigPY5Seo/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
