CONTROL BLOCK NAME = DFHWTGPS
DESCRIPTIVE NAME = CICS TS (XRF) Trace Control area
Licensed Materials - Property of IBM
Restricted Materials of IBM
5655-Y04
(C) Copyright IBM Corp. 1985, 1987
FUNCTION =
Contains description of the XRF Trace area. There is
a single instance.
LIFETIME =
Created on first call to XRF Trace (normally the result
of the call to GET LIFO (DFHWLGET) made by XRF ATTACH
(DFHWDATT) when called from INITIAL ATTACH (DFHWDINA)
during the XRF SIGNON process.
Destroyed during XRF SIGNOFF.
STORAGE CLASS =
Non-CICS storage. Usually above 16M line.
LOCATION =
Addressed by WCGTRA in XRF Global area DFHWCGPS.
INNER CONTROL BLOCKS =
WTGAREA When DFHWTRP allocates the Trace control area
it also allocates the trace area itself.
WTGAREA describes the header of the trace area.
NOTES :
DEPENDENCIES = S/370
RESTRICTIONS =
None
MODULE TYPE = Control block definition
------------------------------------------------------------------
EXTERNAL REFERENCES =
DATA AREAS =
None
CONTROL BLOCKS =
WCGTRA Base for trace control area.
------------------------------------------------------------------
Table 1.
| Offset Hex |
Type |
Len |
Name (Dim) |
Description |
| (0) |
STRUCTURE |
64 |
DFHWTGPS |
Addressed from WS Global |
| (0) |
CHARACTER |
16 |
WTGAHDNG |
Heading text - text is defined in WTGATEXT |
| (10) |
ADDRESS |
4 |
WTGSTART |
Start of trace table |
| (14) |
ADDRESS |
4 |
WTGEND |
End of trace table |
| (18) |
ADDRESS |
4 |
WTGNEXT |
Next trace table entry |
| (1C) |
BIT(16) |
2 |
WTGFLAGS |
| (1C) |
1... .... |
|
WTGFWRAP |
Table has wrapped |
| (1C) |
BIT(15) POS(2) |
2 |
* |
Reserved |
| (1E) |
HALFWORD |
2 |
* |
Reserved |
| (20) |
CHARACTER |
8 |
WTGCLOCK |
Target for STCK instrn issued by DFHWTRP. |
| (28) |
ADDRESS |
4 |
* |
Reserved |
| (2C) |
UNSIGNED |
4 |
* |
Reserved |
| (30) |
CHARACTER |
8 |
WTGCOPY |
Shifted copy of STCK |
| (30) |
UNSIGNED |
4 |
WTG1647 |
STCK bits 16-47 |
| (38) |
ADDRESS |
4 |
WTGCSTEP |
Address of latest clock step entry. |
| (3C) |
ADDRESS |
4 |
WTGENTRY |
Work space for trace |
Table 2.
| Len |
Type |
Value |
Name |
Description |
Size of trace area to be allocated
|
| 4 |
DECIMAL |
65536 |
WTGASIZE |
Allocate 64K |
Heading text
|
| 16 |
CHARACTER |
*** XRF TRACE ** |
WTGATEXT |