Programming Interface Information: This information is NOT intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only.

RQHDR

Prolog  

Control Block Contents  

RQHDR DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

RQHDR Prolog

 NAME       : HCPRQHDR
 DESCRIPTION: SAVBK Return Queue Header Block
 DSECT      : RQHDR
 FUNCTION   : provide queue anchor for SAVBK's returned by
              SAVBK management functions
 LOCATED BY : SAVECPRQ in SAVBK
              PFXCPRQA in PFXPG
              SSACPRQ  in SSABK
              RCCSRCQ  in RCCBK
 CREATED BY : not created, part of SSABK and HCPRCC
 DELETED BY : not deleted
 SERIALIZED : compare double and swap logic

 

RQHDR Control Block Content


RQHDR DSECT

Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure RQHDR SAVBK Return Queue Header Block 0000 0 Signed 4 RQHCOUNT Count of SAVBK's on queue 0004 4 Address 4 RQHQUEUE Queue of SAVBK's 00000001 RQHSIZE (*-RQHDR+7)/8 Size of RQHDR in dwords 00000008 RQHLEN (*-RQHDR) Length of RQHDR

 

RQHDR Storage Layout

*** RQHDR - SAVBK Return Queue Header Block
*
*     +---------------------------+---------------------------+
*   0 |         RQHCOUNT          |         RQHQUEUE          |
*     +---------------------------+---------------------------+
*   8
*
*** RQHDR - SAVBK Return Queue Header Block

 

RQHDR Cross Reference

(contains links to field and bit definitions)
Symbol         Dspl Value
-------------- ---- -----

RQHCOUNT 0000

RQHLEN 0004 00000008

RQHQUEUE 0004

RQHSIZE 0004 00000001


This information is based on VM/ESA 2.4.0.
Last updated on 3 Aug 1999 at 12:28:07 EDT.
Copyright IBM Corporation, 1990, 1999