Save a subscription request on the provider side.
If this isn't called, then the requestor will never see a change PDU.
- Parameters
-
property | The property that the request subscribed to. This must not be NULL. |
- Note
- Calling this will trigger an allocator call. The state will remain until the operation is cancelled.
- Returns
- The saved operation, or NULL if an error occurred (including if the operation is already saved).