For jobs utilizing the new manual workflow, we intend to prohibit
them from modifying the block graph until the management layer provides
an explicit ACK via block-job-finalize to move the process forward.
To distinguish this runstate from "ready" or "waiting," we add a new
"pending" event and status.
For now, the transition from PENDING to CONCLUDED/ABORTING is automatic,
but a future commit will add the explicit block-job-finalize step.
Transitions:
Waiting -> Pending: Normal transition.
Pending -> Concluded: Normal transition.
Pending -> Aborting: Late transactional failures and cancellations.
Removed Transitions:
Waiting -> Concluded: Jobs must go to PENDING first.
Verbs:
Cancel: Can be applied to a pending job.
+---------+
|UNDEFINED|
+--+------+
|
+--v----+
+---------+CREATED+-----------------+
| +--+----+ |
| | |
| +--+----+ +------+ |
+---------+RUNNING<----->PAUSED| |
| +--+-+--+ +------+ |
| | | |
| | +------------------+ |
| | | |
| +--v--+ +-------+ | |
+---------+READY<------->STANDBY| | |
| +--+--+ +-------+ | |
| | | |
| +--v----+ | |
+---------+WAITING<---------------+ |
| +--+----+ |
| | |
| +--v----+ |
+---------+PENDING| |
| +--+----+ |
| | |
+--v-----+ +--v------+ |
|ABORTING+--->CONCLUDED| |
+--------+ +--+------+ |
| |
+--v-+ |
|NULL<--------------------+
+----+
Signed-off-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
5f241594c4