RQHDR Back to Index page
 
Prolog 
Control Block Contents 
   RQHDR DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  RQHDR Prolog Top of page
 
 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
 RELOCATION CONSIDERATIONS : None
 
 
  RQHDR Control Block Content Top of page
 

 RQHDR DSECT Top of page
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 Top of page
 
          
*** RQHDR - SAVBK Return Queue Header Block
*
*     +---------------------------+---------------------------+
*   0 |         RQHCOUNT          |         RQHQUEUE          |
*     +---------------------------+---------------------------+
*   8
*
*** RQHDR - SAVBK Return Queue Header Block
 
 
  RQHDR Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
RQHCOUNT       0000
RQHLEN         0004 00000008
RQHQUEUE       0004
RQHSIZE        0004 00000001
 
This information is based on z/VM 6.3.0 Last updated on 22 May 2013 at 13:55:27 EDT.
Copyright IBM Corporation, 1990, 2013