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– Change the settings of the autoinstall function for programs, mapsets, and
partitionsets—see “The SET_AUTOINSTALL call” on page 350.
v Using the XPI state data access functions, you can:
– Inquire on application system data in the AP domain—see “The
INQ_APPLICATION_DATA call” on page 352
– Inquire on CICS system data in the AP domain—see “The INQUIRE_SYSTEM
call” on page 355
– Set CICS system data values in the AP domain—see “The SET_SYSTEM
call” on page 359.
v Using the XPI storage control functions, you can:
– Obtain and initialize storage—see “The GETMAIN call” on page 361
– Release storage—see “The FREEMAIN call” on page 364
– Inquire about the access-key of an element of storage—see “The
INQUIRE_ACCESS call” on page 364
– Obtain the start address and length of an element of task-lifetime
storage—see “The INQUIRE_ELEMENT_LENGTH call” on page 365
– Discover whether CICS is short on storage—see “The
INQUIRE_SHORT_ON_STORAGE call” on page 366
– Inquire about a task’s task-lifetime storage—see “The
INQUIRE_TASK_STORAGE call” on page 367
– Cause CICS to switch from a subspace to base space—see “The
SWITCH_SUBSPACE call” on page 368.
v Using the XPI trace control function, you can:
– Write a trace entry to the active trace destinations—see “The TRACE_PUT
call” on page 369.
v Using the XPI transaction management functions, you can:
– Inquire about the environment in which a transaction is running—see “The
INQUIRE_CONTEXT call” on page 370
– Discover the name of the dynamic transaction routing transaction
definition—see “The INQUIRE_DTRTRAN call” on page 371
– Discover the current value of the MXT system initialization parameter—see
“The INQUIRE_MXT call” on page 372
– Inquire about a specified transaction class—see “The INQUIRE_TCLASS call”
on page 374
– Inquire about a specified transaction definition—see “The
INQUIRE_TRANDEF call” on page 375
– Inquire about an attached transaction—see “The INQUIRE_TRANSACTION
call” on page 383
– Change the task priority and transaction class of the current task—see “The
SET_TRANSACTION call” on page 387.
v Using the XPI user journaling function, you can:
– Write a record to a CICS journal—see “The WRITE_JOURNAL_DATA call” on
page 388.
user exit programming interface
Chapter 3. The user exit programming interface (XPI) 285