EXEC interface program exits XEIIN, XEIOUT, XEISPIN, and XEISPOUT

There are four global user exit points in the EXEC interface program that you can use before or after an API or SPI call.

XEIIN

Invoked before the execution of any EXEC CICS application programming interface (API) or system programming interface (SPI) command.

XEISPIN

Invoked before the execution of any EXEC CICS SPI command except:

EXEC CICS ENABLE
EXEC CICS DISABLE
EXEC CICS EXTRACT EXIT
EXEC CICS PERFORM DUMP
EXEC CICS RESYNC ENTRYNAME

The sequence is:

TRACE   –   XEIIN   –   XEISPIN   –   EDF   –   command

XEIOUT

Invoked after the execution of any EXEC CICS API or SPI command.

XEISPOUT

Invoked after the execution of any EXEC CICS SPI command except those listed for XEISPIN.

The sequence is:

command   –   EDF   –   XEISPOUT   –   XEIOUT   –   TRACE

Note: Asynchronous processing of these exits might occur if the transaction is suspended; for example, during file I/O wait. This situation might also occur under CEDF because CEDF issues its own EXEC CICS commands between the application’s XEISPIN and XEISPOUT exits.

If, for example, the same GWA is shared between the XEIIN and XEIOUT exits, you must allow for the possibility of asynchronous processing, in order to ensure integrity of the data and to prevent unpredictable results.

On entry to the exits, the exit-specific parameter UEPARG contains the address of the command parameter list.