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TASK_PRIORITY(name4)
specifies the new task priority being set for the task identified by
TRANSACTION_TOKEN.
name4
The name of a 4-byte location that contains the new task priority
number, expressed as a binary value.
TCLASS_NAME(name8)
specifies the new transaction class name that you want to associate this task
with. To specify that the task is not to be in any transaction class, specify the
special default system name DFHTCL00.
name8
The name of an 8-byte location that contains the name of the new
transaction class. Set this field to DFHTCL00 for no transaction class.
TRANSACTION_TOKEN(name8)
specifies the transaction token that represents the task being modified. If you
omit this parameter, the call defaults to the current task.
name8
The name of an 8-byte location that contains the transaction token.
RESPONSE and REASON values for SET_TRANSACTION:
RESPONSE REASON
OK None
EXCEPTION NO_TRANSACTION_ENVIRONMENT
UNKNOWN_TCLASS
INVALID_TRANSACTION_TOKEN
DISASTER ABEND
LOOP
INVALID None
KERNERROR None
User journaling XPI function
There is one XPI user journaling function, which is the DFHJCJCX call
WRITE_JOURNAL_DATA.
DFHJCJCX calls cannot be used in any exit program invoked from any global
user exit point in the:
v Statistics domain
v Monitor domain
v Dump domain
v Dispatcher domain
v Transient data program.
The WRITE_JOURNAL_DATA call
WRITE_JOURNAL_DATA writes a single journal record to the journal specified in
the journal model definition that matches the journal name (either a journal on an
MVS system logger log stream, an SMF data set, or no record is written where
DUMMY is defined in the definition).
Chapter 3. The user exit programming interface (XPI) 419