@managedport decorator for sm

[roblabla]

SwIPC currently defines that IUserInterface is sm:. However, this is not technically correct: to connect to sm:, we have to connect to the kernel-managed port "sm:", and not the sm-managed port. In fact, the kernel suports having multiple such managed ports (up to 7 of them).

I propose we add a @managedport decorator to service definitions, so it turns into IUserInterface is @managedport sm:. It's kinda ugly, so any prettier proposal would be appreciated.

[misson20000]

Perhaps turn it into an annotation that applies to the interface definition? Maybe we should do that for sm registrations, too and just drop the is syntax. Would give a good way to represent registration changes on different versions.

[roblabla]

Could you elaborate? You mean having something like this?

@managedport(sm:)
interface Whatever {
}

That would work. Though for versioning, we'd need to have something like a @cfg_attr(version, decorator)

[misson20000]

I mean

@managedport(sm:)
interface Whatever {
  ...
}

yeah, and then for regular registrations something like:

@registration(appletAE)
interface nn::am::service::IAllSystemAppletProxiesService {
  ...
}

@registration(ns:am2, ns:ec, ns:rid, ns:rt, ns:web)
interface nn::ns::detail::IServiceGetterInterface {
  ...
}

Now that I think about it, I don't know if a service has ever changed registration, but we could notate it like:

@registration([1.0.0-3.0.0] oldname, [3.0.1+] newname)
interface ChangesRegistration {
  ...
}