Fetch joblog (FL)

This task is in charge of the Joblog Retrieval and Restart and Clean up functions. It communicates with the Data Store address space to get joblog (Joblog Retrieval) and structured joblog data information (Restart and Clean up).

It is also in charge of starting the local data store used for storing the oper_info structures.

The task is queue-driven. The queues are:
ARCQ
SSX queue used for controller/FL communication.
ANCQ
Internal queue used for data store/FL communication.
Controller requests to FL are sent via DQE of type "ARC":
Type=LOG
Get z/OS® joblog
Type=OPI
Ask Oper_info structure
Type=SDEL
Start deletion of old entries in local data store