LOCKTAB Back to Index page
 
Prolog 
Control Block Contents 
   LOCKTAB 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.


  LOCKTAB Prolog Top of page
  
 NAME       : LOCKTAB
 DESCRIPTION: Lock/Unlock Resource Table
 DSECT      : LOCKTAB
 FUNCTION   : LOCKTAB simulates the VSE
              Lock/Unlock resource table. LOCKTAB is called
              by the LOCKTAB macro.
 
 
  LOCKTAB Control Block Content Top of page
  




 LOCKTAB DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      LOCKTAB        Lock/Unlock Resource Table
0000    0 Bitstring    2 LOKBDY         ENTRY FOR LOCKTAB SPACE
0002    2 Bitstring    2 LOKOE          ENTRY FOR OWNER ELEMENTS
          00000004       ALOKTABA       * START OF LOCK TABLE
0004    4 Signed       4 * (120)        480 BYTE LOCK TABLE
          000001E4       ALOKTABE       * END OF LOCK TABLE
01E4  484 Bitstring    4 ALOKTABS       SIZE OF LOCK TABLE
01E8  488 Bitstring    4 LASTUSED       HIGH WATER MARK
 
 
  LOCKTAB Storage Layout Top of page
  
          
*** LOCKTAB - Lock/Unlock Resource Table
*
*     +-------------+-------------+---------------------------+
*   0 |   LOKBDY    |   LOKOE     |///////////////////////////|
*     +-------------+-------------+///////////////////////////|
*   8 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////+---------------------------+
* 1E0 |///////////////////////////|         ALOKTABS          |
*     +---------------------------+---------------------------+
* 1E8 |         LASTUSED          | 1EC
*     +---------------------------+
*
*** LOCKTAB - Lock/Unlock Resource Table
 
 
  LOCKTAB Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
ALOKTABA       0002 00000004
ALOKTABE       0004 000001E4
ALOKTABS       01E4
LASTUSED       01E8
LOKBDY         0000
LOKOE          0002
 
This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:36:29 EDT.
Copyright IBM Corporation, 1990, 2020