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UERTCABY
(X'20') CICS abend, retry possible, TCBs dispatchable
UERTCABN
(X'10') CICS abend, retry not possible, TCBs dispatchable
UERTOPCA
(X'01') CICS abend, retry not possible, TCBs not dispatchable.
For further information about shutdown TRUEs, see “Coding a program to be
invoked at CICS termination” on page 298.
CICS context management parameters:
CICS context management parameters are those parameters that CICS passes
when a task-related user exit signals that CICS should be called for CICS context
management.
A CICS application that interacts with another (non-CICS) product that supports the
Application Response Measurement (ARM) workload balancing and reporting
standard can use a task-related user exit program, invoked by CICS context
management, to support cross-product workload monitoring. Sometimes, such a
task-related user exit program is supplied by the non-CICS, ARM-enabled, product.
If the context management bit in the schedule word is set for the current
transaction, CICS context management invokes the exit program whenever the
transaction issues a non-terminal-related EXEC CICS START command. The exit
program is not invoked for terminal-related EXEC CICS START commands.
On invocation, the exit program is passed the following parameter list, which is
mapped by the DFHUECON DSECT:
UECON_EXEC_PLIST_PTR
Address of a copy of the parameter list passed to the EXEC CICS START
command. Your task-related user exit program can use this to access, for
example, the data passed on the FROM parameter of the START
command, or the name of the transaction to be started. The EXEC CICS
START parameter list is described by the DFHICUED copy book.
UECON_CORRELATOR_PTR
Address of a 512-byte area in which the exit program can place an ARM
workload correlator.
CICS EDF build parameters:
On EDF invocations, the address contained in register 1 of the calling program’s
RSA points to the UEPEDFRM DSECT. This contains the following fields:
UEPEDFR1
The address of the application’s R1 parameter list.
UEPEDFFI
The input flag byte. When a task-related user exit is invoked by EDF,
UEPEDFFI can take one or more of the following bit settings:
UEPEDFRQ
(X'80') “About to Execute” invocation.
UEPEDFRS
(X'40') “Command Execution Complete” invocation.
Chapter 2. Task-related user exit programs 283