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Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
TDHBK
Control Block Contents
TDHBK DSECT
Cross Reference (Contains links to field and bit definitions)
TDHBK Prolog
NAME : HCPTDHBK
DESCRIPTION: TRACE SERVICE TOOL DIAGNOSE READ HEADER BLOCK
DSECT : TDHBK
FUNCTION : CONTAINS HEADER INFORMATION FOR DATA RELATED TO
PROCESSING A DIAG X'E0'.
LOCATED BY : VMDTDHBK
CREATED BY : HCPTSD when processing a Diagnose x'E0' open request.
DELETED BY : HCPTSD when processing a Diagnose x'E0' close request.
HCPTSGDF when user is logging off.
EMPLOYED BY HCPTSD when processing a Diagnose x'E0' for
open, read or close requests.
REFERENCES : None
COMMENTS : None
TDHBK Control Block Content
TDHBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure TDHBK TRACE SERVICE TOOL DIAGNOSE READ
HEADER BLOCK
0000 0 Character 24 TDHLCK TDR chain lock
0018 24 Address 4 TDHTDRBK TDR chain anchor
001C 28 Bitstring 1 TDH$END (0) Defines end of control blk
TDHBK Storage Layout
*** TDHBK - TRACE SERVICE TOOL DIAGNOSE READ HEADER BLOCK
*
* +-------------------------------------------------------+
* 0 | |
* = TDHLCK =
* | |
* +---------------------------+---------------------------+
* 18 | TDHTDRBK |
* +---------------------------+
*
*** TDHBK - TRACE SERVICE TOOL DIAGNOSE READ HEADER BLOCK
TDHBK Cross Reference
Symbol Dspl Value -------------- ---- ----- TDH$END 001C TDHLCK 0000 TDHTDRBK 0018
Last updated on 5 Jun 2001 at 17:00:04 EDT.
Copyright IBM Corporation, 1990, 2001