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data locations can be above or below 16MB; whether the application’s
storage is in CICS-key or user-key storage; and whether the TRUE has
been called by an unexpected TCB:
UEPTANY (X'80')
The application can accept addresses above 16MB. If the symbolic
value is not UEPTANY, the application must be returned an address
below 16MB.
UEPTCICS (X'40')
The application’s working storage and task life-time storage are in
CICS-key storage (TASKDATAKEY=CICS). If the symbolic value is
not UEPTCICS, the application’s working storage and the task’s
life-time storage are in user-key storage (TASKDATAKEY=USER).
UEPTUTCB (X'20')
Indicates an unexpected TCB. Set on a syncpoint or end-of-task
call only, this indicates a failure to switch to the TCB expected by
the task-related user exit. In these two cases, the task-related user
exit is called on the QR TCB with the UEPTUTCB bit set. For all
other calls, CICS abends the transaction without invoking the
task-related user exit.
The second and third bytes contain a value indicating the TCB mode of it’s
caller. This is represented in DFHUEPAR as both a two-character code and
a symbolic value, as follows:
Table 10. TCB indicators in DFHUEPAR. Description
Symbolic
value
2-byte
code
Description
UEPTQR QR The quasi-reentrant mode TCB
UEPTCO CO The concurrent mode TCB
UEPTFO FO The file-owning mode TCB
UEPTRO RO The resource-owning mode TCB
UEPTRP RP The ONC/RPC mode TCB
UEPTSZ SZ The FEPI mode TCB
UEPTJ8 J8 The JVM mode TCB
UEPTL8 L8 An open mode TCB
UEPTSL SL The sockets listener mode TCB
UEPTSO SO The sockets mode TCB
UEPTS8 S8 The secure sockets layer mode TCB
UEPPBTOK
Address of the performance block token used for workload management, to
enable resource managers to relate their own performance blocks for the
work request with the original CICS performance block. For example,
DBCTL and DB2 need to correlate the work they do on behalf of CICS with
the originating CICS task, so that MVS workload manager can measure the
performance of the whole CICS task.
UEPTRCE
Address of a 1-byte trace flag indicating whether RMI tracing (the RI trace
component) is active.
the task-related user exit program
256
CICS TS for OS/390: CICS Customization Guide
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