User Exits › Exit Routine Programming Considerations › TPCRECXT Exit

TPCRECXT Exit

This exit routine customizes the TPCF processing of allocation recovery. Through this routine, you can address site-specific processing needs that are not completely served by the CA MIA standard recovery processing. For example, you could use this routine to reply CANCEL (rather than replying WAIT) to the IEF238D message in a testing situation when no devices are available.

As CA MIA processes the TPCRECXT exit routine, certain flags and bytes report the status of devices and list the options available to TPCF when responding to allocation recovery messages. The flags and bytes described below can be used to change the TPCF responses.

You can change these fields in the X35LIST DSECT:

X35FLAG1 (+10)

You can modify this field to eliminate DEVICE NAME or WAIT as options on the MIM2060 message by turning off the appropriate bit setting.

X35FLAG2 (+11)

You can modify this field to change the manner in which TPCF replies to MIM2060 messages by turning off the current bit setting and turning on the appropriate bit. The possible replies are:

• WAIT
• CANCEL
• HOLD
• NOHOLD
• Operator reply
• A local device name

X35FLAG3 (+12)

Eliminates groups of devices from the MIM2042 message if you want TPCF to let the operator reply.

X35UNITR (+14)

Specifies the device name with which TPCF replies if the X35DVNMR bit is on in flag X35FLAG2.

You can change this field in the X35DEV DSECT:

X35STAT4 (+9)

Eliminates specific devices from the MIM2042 message if TPCF is to let the operator reply.