CONTROL BLOCK NAME = DFHWFGDS
NAME OF MATCHING PLS CONTROL BLOCK = DFHWFGPS
DESCRIPTIVE NAME = CICS TS (XRF) - CAVM File Control Block
Licensed Materials - Property of IBM
Restricted Materials of IBM
5655-Y04
(C) Copyright IBM Corp. 1985
FUNCTION =
The CAVM File Control Block contains data relating to the
CAVM Control data set and Message data set such as ACB
pointers, CI size, RBAs of certain records and a pointer
to the RESERVE parameter list used to serialise accesses to
the Control data set during SIGNON, SIGNOFF and TAKEOVER.
Each XRF system contains a single CAVM File Control Block.
LIFETIME =
The CAVM File Control Block is created by DFHWSSN3 during
CAVM SIGNON.
STORAGE CLASS =
Non-CICS storage. MVS subpool 0 above 16M line.
LOCATION =
Field WCGFA in the CAVM Global Control Block (DFHWCGDS)
contains a pointer to the CAVM File Control Block.
INNER CONTROL BLOCKS =
None.
NOTES :
DEPENDENCIES = S/370
RESTRICTIONS =
None.
MODULE TYPE = Control block definition
--------------------------------------------------------------------
EXTERNAL REFERENCES =
None.
DATA AREAS =
None.
CONTROL BLOCKS =
None.
GLOBAL VARIABLES (Macro pass) =
None.
--------------------------------------------------------------------
Table 1.
| Offset Hex |
Type |
Len |
Name (Dim) |
Description |
| (0) |
STRUCTURE |
0 |
DFHWFGDS |
CAVM File Control Block |
| (0) |
ADDRESS |
4 |
WFGPACB |
Pointer to Message File ACB |
| (4) |
ADDRESS |
4 |
WFGSACB |
Pointer to Control File ACB |
| (8) |
FULLWORD |
4 |
WFGCISIZ |
Control interval size of both files |
| (C) |
FULLWORD |
4 |
WFGHARBA |
High allocated RBA of Message File |
| (10) |
FULLWORD |
4 |
WFGLORBA |
Lowest RBA available for use by Message Management in Message File |
| (14) |
FULLWORD |
4 |
WFGHURBA |
High used RBA of Message File |
| (18) |
FULLWORD |
4 |
WFGRPLLN |
Length of an RPL |
| (1C) |
FULLWORD |
4 |
WFGSMRBA |
RBA of State Management Record in Control File |
| (20) |
FULLWORD |
4 |
WFGASRBA |
RBA of ACTIVE's status CI in either file |
| (24) |
ADDRESS |
4 |
WFGRSVPP |
Pointer to RESERVE parameter list |
| (24) |
..1. 1... |
|
WFGL |
"*-DFHWFGDS" |