Handles

[vercas]

The kernel needs a table of handles in the system, with a reference count, process ID, and index within that process's handles.
Each process needs a table to map local handle indexes to global handles.

• Settle on the proposed structures of the two tables.

• Implement kernel handle table

  • Make fast path wait-free
  • Investigate need for garbage collection

• Implement process handle maps

  • [ ]

TODO: Finish the checklist...