Processing sequence
The system gives control to the installation-written resource managers
in the following order:
- Resource managers listed in the CSECT IEAVTRML.
- Dynamic resource managers, either address space or task, get control
in LIFO order within resource manager type. Dynamic task resource managers are processed in the following order:
- Resource managers provided to protect the specific terminating task
- Resource managers provided to protect all tasks in the home address space of the terminating task
- Resource managers provided to protect all tasks in all address spaces.
Dynamic address space resource managers are processed in the following order:- Resource managers provided to protect a specific address space
- Resource managers provided to protect all address spaces.
For task termination, the resource manager runs under an RB for the terminating task. For address space termination, it runs in task mode in the master scheduler address space. In either case, the resource manager gets control in PSW key 0, supervisor state, with no locks held.
After all installation-written resource managers have completed processing, the system invokes the system-provided resource managers.