IDHBK Back to Index page
 
Prolog 
Control Block Contents 
   IDHBK 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.


  IDHBK Prolog Top of page
 
 NAME       : HCPIDHBK
 DESCRIPTION: Spool Image Library Directory Header
 DSECT      : IDHBK
 FUNCTION   : To map out the directory header information
              in a 3800 image library file.
 LOCATED BY : The directory header is located at the
              beginning of the first directory record in
              the file.
 CREATED BY : IMAGELIB command (HCPNMTBL)
              IMAGEMOD command (DMSIMAGE)
 DELETED BY : All the contents of an IMG file, including
              the IDHBKs, are deleted by the "PURGE IMG"
              command processing (HCPCSUPU).
 RELOCATION CONSIDERATIONS : None
 
 
  IDHBK Control Block Content Top of page
 

 IDHBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure IDHBK Spool Image Library Directory Header 0000 0 Character 8 IDHNAME Image Library name 0008 8 Signed 4 IDHLENDR Length of directory record, including header 000C 12 Signed 4 IDHNUMDE Number of directory entries (IDMBKs) 00000010 IDHSIZE *-IDHBK Size in bytes 00000002 IDHSZDW (*-IDHBK+7)/8 Size in doublewords
 
 
  IDHBK Storage Layout Top of page
 
          
*** IDHBK - Spool Image Library Directory Header
*
*     +-------------------------------------------------------+
*   0 |                       IDHNAME                         |
*     +---------------------------+---------------------------+
*   8 |         IDHLENDR          |         IDHNUMDE          |
*     +---------------------------+---------------------------+
*  10
*
*** IDHBK - Spool Image Library Directory Header
 
 
  IDHBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
IDHLENDR       0008
IDHNAME        0000
IDHNUMDE       000C
IDHSIZE        000C 00000010
IDHSZDW        000C 00000002
 
This information is based on z/VM 7.1.0 Last updated on 22 Jun 2018 at 11:50:02 EDT.
Copyright IBM Corporation, 1990, 2018