User Exits › How You Manage User Exits › Common Exit Interface (MIMINIXT)

Common Exit Interface (MIMINIXT)

CA MIM provides a common exit interface that you can use to dynamically manage any CA MIM exit routine. The common exit interface provides these advantages:

• You can dynamically load, activate, and de-activate exit routines.
• You can request an optional automatic recovery environment in the definition of the exit routine.
• CA MIM supports residency mode 31 (RMODE=31) fully. If you link an exit routine with RMODE=31, then the routine is loaded above the 16 MB line and is always invoked in addressing mode 31 (AMODE=31).

When you load or reload a routine and a prior copy of that routine exists, the old version of the routine is released from storage when it is no longer in use.

Note: You must modify routines written for previous releases of CA MIM to function with the new format and parameters.

The MIMINIXT exit routine is handled separately because it must run its initialization code before any other exit routine runs. You can use the MIMINIT INITEXIT statement in the initialization member to load and activate the MIMINIXT exit routine.

The MIMINIXT exit routine runs only when CA MIM begins operations, so it cannot be dynamically reloaded or otherwise changed. To rerun MIMINIXT or to run a new version, it is necessary to restart CA MIM.