Programming Interface Information: This information is NOT intended to be
used as Programming Interfaces of z/VM.

TDRBK

Prolog
Control Block Contents
TDRBK DSECT
Storage Layout
Cross Reference

TDRBK Prolog

 NAME       : HCPTDRBK
 DESCRIPTION: TRACE SERVICE TOOL DIAGNOSE READ
              INFORMATION BLOCK
 DSECT      : TDRBK
 FUNCTION   : Contains data related for processing a Diag x'E0'
 LOCATED BY : VMDTDRBK
 CREATED BY : HCPTSD when processing a Diagnose x'E0' open request.
 DELETED BY : HCPTSD when processing a Diagnose x'E0' close request.
              HCPTSDDF when user is logging off.
 EMPLOYED BY  HCPTSD when processing a Diagnose X'E0' for
              open, read or close requests.
 REFERENCES : None
 COMMENTS   : None
 

TDRBK Control Block Content

TDRBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      TDRBK          TRACE SERVICE TOOL DIAGNOSE READ
0000    0 Address      4 TDRNEXTP       Pointer to next TDR block. If 0
                                        then end of chain has been
                                        reached.
0004    4 Address      4 TDRBACKP       Pointer to previous TDR block.
0008    8 Address      4 TDRSDFBK       Pointer to SDF block.
000C   12 Bitstring    1 TDR$END (0)    Defines end of control block
 

TDRBK Storage Layout

          
*** TDRBK - TRACE SERVICE TOOL DIAGNOSE READ
*
*     +---------------------------+---------------------------+
*   0 |         TDRNEXTP          |         TDRBACKP          |
*     +---------------------------+---------------------------+
*   8 |         TDRSDFBK          |
*     +---------------------------+
*
*** TDRBK - TRACE SERVICE TOOL DIAGNOSE READ
 

TDRBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
TDR$END        000C
TDRBACKP       0004
TDRNEXTP       0000
TDRSDFBK       0008
This information is based on z/VM V3R1.0.
Last updated on 30 Mar 2001 at 09:00:47 EDT.
Copyright IBM Corporation, 1990, 2001