AddManagement.md

Adding new management tasks

Management tasks are different from user tasks. They are injected by the MAInjector and their folder structure is different. Inside the management folder, each subfolder is a task. Inside each task subfolder there is a config.yaml file that indicates the capabilities of the management task. Currently, the following capabilities are supported:

• act
  • migration
• decide
  • qos
• observe
  • qos

Inside the src subfolder of each task, the .c files are included, and inside the include subfolder of the src folder, the header .h files are included. To add a new management task, simply add a new task in the same file and folder structure as described.

Adding new capabilities

To add new capabilities, edit the descriptor builder and add to the get_type function the desired tag with a exclusive bit indicating in the following format:

LSB indicates the type of the task (Actuation, Decision, Observation or User task):

7	6	5	4	3	2	1	0
				Observe	Decide	Act	User

The next byte indicates the Observation capabilities:

15	14	13	12	11	10	9	8
						SEC	QoS

The next byte indicates the Decision capabilities:

23	22	21	20	19	18	17	16
						SEC	QoS

And finally the MSB indicates the Actuation capabilities:

31	30	29	28	27	26	25	24
							Migration

Empty spaces in the tables above indicates that there is no defined capability yet.

Using the standard ODA library

MA-Memphis provides a standard ODA library by including oda.h. It is possible to ask for deciders or actuators in a standard way by setting the parameters to comply with the table above. Check the library header for further documentation.