pkg/wakaama: Notify resource updates when writing to resources

[leandrolanzieri]

Contribution description

Currently one can update LwM2M resources using the functionalities in common.h. But this doesn't automatically marks them as changed for the LwM2M client to check if an observe notification may be required.

This PR proposes to include marking the resource as changed upon write, thus giving the possibility to generate observation notifications.

I had to include a path to the package to mark the uriP argument as const. Additionally fixed the numbering of the patches files in the package (because apparently I can't count).

Testing procedure

• You would need to start an observation with your LwM2M server on some resource, and then from the node update the value of the observed resource (this plays well with pkg/wakaama: add Light Control object implementation #16204).

Issues/PRs references

You may want to take a look at #16204

[riot-ci]

Murdock results

✔️ PASSED

d523d5d pkg/wakaama/common: mark resource as updated when written to

Success	Failures	Total	Runtime
8627	0	8627	09m:05s

Artifacts

• Documentation preview

[benpicco]

Pretty straightforward.

Have we ever tried getting those patches upstream?
We are using a version of the package that's 6 years old.

[leandrolanzieri]

Thanks for reviewing :)

Have we ever tried getting those patches upstream?
We are using a version of the package that's 6 years old.

Not really, but I agree that's something towards which we should tend. I'll see if I can bump it and check what's still necessary.

[leandrolanzieri]

BTW #20930 finally bumps this package