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Parameter 6
Address of a 4-byte, packed-decimal field containing the date of the failing
syncpoint, in the format 00yyddd+. See note 1.
Parameter 7
Address of a 4-byte, packed-decimal field containing the time of the failing
syncpoint, in the format 0hhmmss+. See note 1.
Parameter 8
Address of an 8-byte field containing the resource manager qualifier. See note
1.
To verify that this is a resync for this instance of the resource manager, your
exit program should check that the qualifier passed is the one that is currently
in use. If it is not, the exit program should ignore the resync and set a return
code of UERFHOLD, to indicate that CICS should keep the disposition of the
unit of work.
Parameter 9
Address of a 4-character field containing the next transaction code. If the
transaction ended with an EXEC CICS RETURN without specifying the next
transaction code, the addressed field is set to nulls; otherwise, it is set to the
value specified by the application. See note 2.
Parameter 10
The address of operation byte 2, which contains the following flags:
UERTONLY
(X'80') Perform a single-phase commit. (No recoverable resources other
than those owned by the resource manager being invoked have been
updated during the current UOW.)
UERTELUW
(X'40') Perform a single-phase commit. (The resource manager was in
read-only mode throughout the current UOW.)
Your exit program should examine the flags set both in this byte and in
operation byte 1 (see parameter 1), to determine what action is expected of it.
Notes:
1. Parameters 2 through 8 contain values only if the CICS syncpoint manager call
is prompted by the issue of an EXEC CICS RESYNC command after a session
or system failure, and operation byte 1 contains the bit settings UERTCOMM or
UERTBACK. Otherwise, they are set to X'00' (hexadecimal zero). For
programming information about the EXEC CICS RESYNC command and about
the completion of the syncpointing procedure following a system failure, refer to
the
CICS System Programming Reference
manual.
Note that parameters 2 through 8 describe the environment of the original task
(not of the task that is currently driving the TRUE).
2. Unless the UERTLAST bit is set in operation byte 1, parameter 9 is a zero
address. Although for a call prompted by an EXEC CICS RESYNC call, the
UERTLAST bit will be set on, in this case the next transaction code does not
apply and so Parameter 9 addresses a field set to nulls.
CICS task manager parameters:
There are either one or two entries in the CICS
task manager’s parameter list, depending on the reason for the call to the TRUE:
on start-of-task calls, the parameter list contains one entry, while on end-of-task
calls, it contains two. Each entry consists of an address, and the end of the
parameter list is indicated by the top bit of the address being set.
the task-related user exit program
260
CICS TS for OS/390: CICS Customization Guide