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Part 8.
Examining
and
modifying
resource
attributes
©
Copyright
IBM
Corp.
1977,
1999
739
1
2
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CICS Customization Guide
1
Contents
5
Contents v
7
Contents vii
9
Contents ix
11
Contents xi
13
Contents xiii
15
Contents xv
17
Trademarks
21
What this book is about
23
Who this book is for
23
How to use this book
23
Notes on terminology
23
Bibliography
25
Other CICS books
26
Books from related libraries
26
ACF/TCAM books
26
MVS books
27
VTAM books
27
Other related books
27
Summary of changes
29
Summary of changes xxix
31
Performance Guide
32
Global user exit programs
36
Register conventions
36
Using CICS services
37
The global work area
38
Making trace entries
39
DFHUEPAR standard parameters
40
12 (decimal)
41
12 (decimal) in this
41
Returning values to CICS
42
Errors in user exit programs
44
The DFH$PCPI program:
47
Sample program definitions:
48
Resource Definition Guide
49
CICS Shared Data
49
Tables Guide
49
Exit XAKUSER
57
WRITE JOURNALNAME
58
Important
58
Basic Mapping Support exits
59
Exit XBMIN
60
Exit XBMOUT
60
Programming the XBMIN exit
62
Programming the XBMOUT exit
62
Cumulative mapping operations
63
Message routing
63
Bridge facility exit
64
Exit XFAINTU
64
Exit XDTRD
65
Exit XDTAD
68
Exit XDTLC
69
Exit XXDFB
72
Exit XXDTO
73
Exit XDSBWT
74
Exit XDSAWT
74
DL/I interface program exits
76
Exit XDLIPRE
77
Exit XDLIPOST
79
Exit XDUREQ
81
Exit XDUREQC
84
Exit XDUCLSE
87
Exit XDUOUT
87
Exit XNQEREQ
89
Exit XNQEREQC
90
Sample exit program, DFH$XNQE
95
The command parameter list
97
Bypassing commands
98
Exit XEIIN
98
Exit XEISPIN
99
Exit XEIOUT
100
Exit XEISPOUT
100
EXEC interface program exits
101
Modifying input fields
107
Modifying the EID
108
Use of the parameter UEPFSHIP
109
Exit XFCREQ
111
Exit XFCREQC
112
Example program
114
Exit XFCAREQ
116
Exit XFCAREQC
117
Modifying user arguments
127
Exit XFCSREQ
129
Exit XFCSREQC
132
Recovery and Restart Guide
137
Exit XFCNREC
138
Exit XFCVSDS
140
file control quiesce send exit
142
Order of invocation
144
Migration note
149
The XISCONA exit
159
Exit XISCONA
160
CICS Performance Guide
161
The XISLCLQ exit
162
Exit XICREQ
164
Exit XICEXP
165
Exit XICTENF
165
XICEREQC
166
Exit XICEREQ
166
Exit XICEREQC
167
Modifying output fields
174
Using the task token UEPTSTOK
177
CICS Intercommunication Guide
178
Exit XLDLOAD
179
Exit XLDELETE
180
OS/390 MVS Authorized
181
Exit XLGSTRM
182
Message domain exit XMEOUT
184
Exit XMEOUT
185
Monitoring domain exit XMNOUT
188
Exit XMNOUT
188
XPCHAIR, XPCTA, and XPCABND
190
XPCREQ and XPCREQC
190
Exit XPCREQC
191
Modifying input fields:
194
Modifying output fields:
194
In XPCREQ:
196
In XPCREQC:
196
Exit XPCFTCH
197
Exit XPCHAIR
198
Exit XPCTA
200
Exit XPCABND
201
Exit XRMIIN
203
Exit XRMIOUT
204
Exit XRSINDI
205
Exit XSNON
209
Exit XSNOFF
210
UERCPURG
211
Task purged during XPI call
211
XPI calls
211
All can be used
211
Statistics domain exit XSTOUT
212
Exit XSTOUT
212
Exit XSRAB
214
could be determined
215
CICS Data Areas
216
Exit XSTERM
218
XTSPTOUT
219
Exit XTSQRIN
219
Exit XTSQROUT
220
Exit XTSPTIN
222
Exit XTSPTOUT
223
XTSEREQC
225
Exit XTSEREQ
226
Exit XTSEREQC
227
Command See
228
WRITEQ TS Table 7 on page 200
228
READQ TS Table 8 on page 200
228
Adding user arguments
233
Removing user arguments
233
Exit XALCAID
235
Exit XTCIN
237
Exit XTCOUT
237
Exit XTCATT
238
Exit XTCTIN
238
Exit XTCTOUT
239
The exits
240
Exit XALTENF
241
Exit XXMATT
248
Exit XTDREQ
250
Exit XTDIN
251
Exit XTDOUT
252
XTDEREQC
253
Exit XTDEREQ
253
Exit XTDEREQC
255
Coding the exit programs
262
Enabling the exit programs
263
Exit XRCINIT
264
Exit XRCINPT
264
Exit XZCATT
266
Exit XZCIN
267
Exit XZCOUT
267
Exit XZCOUT1
268
VTAM working-set module exits
269
Exit XZIQUE
272
Design considerations
275
Sample exit program design
276
Exit XXRSTAT
278
The stub program
282
Figure 5. The stub concept
283
User exit parameter lists
285
Caller parameter lists
289
CICS task manager parameters:
292
CICS EDF build parameters:
293
The schedule flag word
297
Saving CICS registers
298
Addressing-mode implications
299
Work areas
301
CICS System
302
Programming Reference
302
Return codes
303
Limitations
304
Resynchronization
306
(Part 1 of 2)
309
(Part 2 of 2)
310
) and (E
311
) expressions in Figure 10
311
Adapter administration
312
The administration routines
313
TRACETYPE command
314
Overview
315
General form of an XPI call
318
DFHUEXIT TYPE=XPIENV
322
XPI register usage
323
The XPI copy books
323
XPI examples
325
The XPI functions
330
OPTION(addr,len)
331
OPTION(bufdname)
331
OPTION(addr,maxlen,*)
331
Dispatcher functions
332
The ADD_SUSPEND call
334
The SUSPEND call
336
The RESUME call
339
The DELETE_SUSPEND call
340
The WAIT_MVS call
341
CICS Problem Determination
343
The CHANGE_PRIORITY call
345
Dump control functions
346
The SYSTEM_DUMP call
346
RESPONSE REASON
347
The TRANSACTION_DUMP call
348
Enqueue domain functions
350
The ENQUEUE function
350
The DEQUEUE function
351
Kernel domain functions
352
Loader functions
353
The DEFINE_PROGRAM call
353
The ACQUIRE_PROGRAM call
357
The RELEASE_PROGRAM call
359
The DELETE_PROGRAM call
360
Log manager functions
361
The INQUIRE_PARAMETERS call
361
The SET_PARAMETERS call
361
Monitoring functions
362
The MONITOR call
362
CICS Resource Definition Guide
363
Program management functions
366
The INQUIRE_PROGRAM call
367
Intercommunication Guide
368
The SET_PROGRAM call
375
The START_BROWSE_PROGRAM call
378
The GET_NEXT_PROGRAM call
379
The END_BROWSE_PROGRAM call
381
The INQUIRE_AUTOINSTALL call
382
The SET_AUTOINSTALL call
382
State data access functions
384
The INQ_APPLICATION_DATA call
384
The INQUIRE_SYSTEM call
387
The SET_SYSTEM call
391
Storage control functions
393
The GETMAIN call
393
The FREEMAIN call
396
The INQUIRE_ACCESS call
396
INQUIRE_ELEMENT_LENGTH:
398
The INQUIRE_TASK_STORAGE call
399
The SWITCH_SUBSPACE call
400
Trace control function
401
The TRACE_PUT call
401
The INQUIRE_CONTEXT call
402
The INQUIRE_DTRTRAN call
403
The INQUIRE_MXT call
404
The INQUIRE_TCLASS call
406
The INQUIRE_TRANDEF call
407
The INQUIRE_TRANSACTION call
415
The SET_TRANSACTION call
419
User journaling function
420
The WRITE_JOURNAL_DATA call
420
Initialization programs
425
First phase PLT programs
425
Second phase PLT programs
426
Shutdown programs
426
General considerations
428
Storage keys for PLT programs
428
PLT programs—general
429
IBM ESA/370 Principles of
433
Operation
433
CICS System Definition Guide
434
CICS Recovery and
439
Restart Guide
439
Terminal control program
448
Terminal error program
448
The communication area
449
TEP error table
450
TEP default table
451
Entry and initialization
452
Error processor selection
452
Error processing execution
452
General exit
453
Common subroutines
453
DFHTEPM TYPE=USTOR
458
DFHTEPM TYPE=USTOREND
458
DFHTEPM macro examples
462
DFHTEPT TYPE=INITIAL
464
,MAXTIDS=number
464
[,MAXERRS={25
464
[,OPTIONS={TIME
464
Name Type Description Library
470
CICSTS13.CICS.SDFHMAC
470
increased by
473
8 in real TCTLE)
473
USING DFHTCTTE,TCTTEAR
474
DROP TCTLEAR
474
USING DFHTCTLE,TCTLEAR
474
CICS Intercommunication
481
An overview of writing a NEP
483
The default NEP
484
The sample NEP
484
Coding the sample NEP
485
Multiple NEPs
487
The sample node error program
497
Entry section
498
Routing mechanism
499
Node error table
499
Optional common subroutines
500
Table 22. Register assignment
504
Entry and addressability
508
Coding for session failures
509
Writing multiple NEPs
510
DFHZNEPI macros
510
CICS/ESA 3.3 XRF
512
Changing the recovery message
514
Preliminary considerations
517
Coding entries for MTS
519
SNA Network Product Formats
520
Returning information to CICS
523
CICS Resource Definition
524
Setting the TERMINAL name
525
WAS MODEL_NAME: mmmmmmmm
526
CINIT BIND: cccccccc...
526
MODEL BIND: bbbbbbbb...
526
MISMATCH BITS: xxxxxxxx
526
Testing and debugging
528
Definition Guide
530
Assembler language
531
Leaving it all to CICS
537
Benefits of autoinstall
546
Requirements for autoinstall
546
Recovery and restart
547
Resource definitions
553
CICS-generated aliases
556
Autoinstall models
563
Terminal identifiers
564
Why override TERMIDs?
565
Autoinstall model definitions
572
System autoinstall
573
Saving in virtual storage
573
Faster startup times
574
Resource definition
579
Dynamic transaction routing
582
Dynamic transactions
582
Changing the program name
585
CICS Application Programming
587
Monitoring the output TIOA
588
Unit of work considerations
589
Changing the transaction ID
592
‘tranid’
598
Reference
599
System Programming Reference
605
CICS Business Transaction
611
Services
611
CICS System Programming
612
External Interfaces Guide
631
CICS Internet Guide
633
Environment variables
635
IBM ESA/370 Principles
640
The sample overseer program
641
The display function
642
The restart-in-place function
643
CICS Operations and
644
Utilities Guide
644
The DFHWOSM macros
646
The DFHWOSM tokens
647
DFHWOSM FUNC=BUILD macro
647
DFHWOSM FUNC=CLOSE macro
648
DFHWOSM FUNC=DSECT macro
648
DFHWOSM FUNC=JJC macro
648
DFHWOSM FUNC={JJS
649
DFHWOSM FUNC=OPEN macro
650
DFHWOSM FUNC=OSCMD macro
650
DFHWOSM FUNC=READ macro
651
DFHWOSM macros
652
DFHWOSM FUNC=TERM macro
654
Loop or wait detection
656
IBM ESA/370
660
Principles of Operation
660
Log stream storage
661
Primary storage
662
Tertiary storage
662
Secondary storage
662
Fixed length
666
Reserved
667
Start-of-run record
668
Format of caller data
668
Variable length
669
FLJB GENERAL DATA
672
FLJB DELETE DATA
672
Fixed length Variable length
672
Base key Path key
672
File-close record types
673
Tie-up record types
674
Terminal control prefix data
676
FEPI prefix data
676
System header
680
User prefix Journal data
680
System prefix
680
Variable
682
The SMF block header
686
The CICS product section
686
The CICS data section
687
Chapter 24. CICS monitoring
689
DFHMCT TYPE=EMP
691
DFHMCT TYPE=RECORD
691
Examples of MCT coding
692
Exception class data
693
Controlling CICS monitoring
694
CICS Supplied Transactions
695
OS/390 MVS System Management
697
Facilities (SMF)
697
CICS data section
698
Performance data sections
704
Exception data sections
706
CICS Performance
707
Chapter 25. CICS statistics
709
Resetting statistics counters
713
CICS statistics record format
714
STSMFDS DFHSTSMF PREFIX=SMF
715
CICS statistics data section
717
CICS with TCAM SNA
724
Protocol management
724
Transaction control
725
Batch processing
726
Error processing
726
The CICS-TCAM interface
727
Data format
728
Logic flow
729
Segment processing
732
Line pool specifications
733
Line locking
734
TCAM queues
735
TCAM devices
736
TCAM with 3270 devices
738
TCAM user exits
739
Starting and terminating TCAM
739
CICS-TCAM startup
739
CICS-TCAM abend and restart
739
CICS-TCAM termination
740
TCAM MCP
741
CICS Application program
741
Terminal operation
746
Help feature
747
DYNALLOC flow of control
749
CICS RACF Security
752
The MVS router
753
The MVS router exit
754
Router exit return codes
755
ESM exit programs
756
CICS security control points
759
Early verification processing
761
INCLUDE SYSLIB(DFHXSEAI)
763
INCLUDE SYSLIB(DFHEAI)
763
ENTRY verify-program
763
*ASM XOPTS(NOPROLOG,NOEPILOG)
763
What the sample program does
768
An overview of DFHCSDUP
773
DFHCSDUP as a batch program
774
The EXTRACT command
774
The sample EXTRACT programs
776
The DB2 formatting program
778
An assembler-language version
780
A VS COBOL II version
781
A PL/I version
782
Entry parameters for DFHCSDUP
784
The initialization exit
787
The get-command exit
788
The extract exit
789
The put-message exit
791
The sample program, DFH$CUS1
792
COMMAREA(CEDAPARM)
793
CICS Distributed
794
Transaction Programming Guide
794
DFHEDAP in a DTP environment
795
Part 9. Appendixes
797
TYPETERM device types
800
VTAM MODEENT macro operands
802
PSERVIC screen size values
807
Messages and Codes
821
CICS Messages and Codes
832
(DFH$TDWT)
835
Using the XZCIN exit
837
Using DFHTCTDY
837
TS data sharing messages
838
Special Characters
855
Numerics
855
(continued)
856
Index 827
859
Sending your comments to IBM
873
SC33-1683-02
874
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875
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