LocateNamespace tries to recover the path reference to a “lost” namespace based on its ID and type by running a slightly reduced discovery and searching the namestack for the needle (or so).

LocateNamespaceInNamespaces tries to recover the path reference to a “lost” namespace based on its ID and type, using the specified namespace information (map).

PortableReference describes one or several aspects of a portable namespace reference, where portable refers to being transferable between different processes on the same host, but not across different hosts.