Kernel objects

[egranata]

This is much more of a wishlist item that anything concretely actionable at this point, but here's the gist

All long-lived objects in kernel space that represent something that userspace can interact with (so, things like a semaphore, a file, a disk, ...) should be represented as deriving from a common kobject_t base class.

kobject_t would expose:

• LLVM-style RTTI with globally unique types and a hierarchy (so one would have object, synch_object, semaphore as elements of the hierarchy) - this could probably be defined in (one or more) .tbl file and imported as needed somehow;
• shared_ptr reference counting semantics;
• support for being written into logs easily (probably with a custom printf formatter %K);
• trivial to insert into handle tables and type-checked on extraction from such