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The main actions in the various states are listed below:
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Buffer the notification (along with the cluster id) in the DB. Discard any older notifications (remove from the DB) from the same cell (which is buffered).
2.1.6. OOF Response Handling
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Upon receiving a terminate request clean up all resources.
2.2. Child Thread(s)
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2.2.1 Initialization
In this state, perform initialization, and transition to Cluster formation state.
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2.2.3. Wait for notifications
- Start notif_timer if not started already, and wait for more notifications
- If a new notification is received, transition to Cluster modification state. If notif_timer expires, transition to Trigger OOF state.
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After sending the message to Policy, a status update is provided to the Main Thread for further actions.
2.2.7.
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Buffered notification handling
- If the main thread triggers a buffered notification to be handled, start buf_timer (if not started already) to buffer the notification (pre-configured value), if not already started (Note), and store the notification contents.
- Upon expiry of buf_timer, process the received (and stored) notifications by transitioning to Cluster Modification state.
- If new notifications are received when in this state, then check on whether a notification was received and buffered for the same cell earlier, and if yes, discard the earlier notification (i.e., retain only the latest unprocessed notification for a cell). Simply store the notification and remain in this state.
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