Struct PluginMetaRegistry 

pub struct PluginMetaRegistry(pub RwLock<HashMap<u32, PluginMeta>>, pub RwLock<HashMap<u32, u32>>);

PI.3/PI.4: host-side plugin-id → PluginMeta map. Backs both provenance display (SourceLayer::Plugin(id) renders as the manifest name, else <plugin:id>) and the loaded-plugin introspection surfaces (:describe-plugin / :list-plugins). A newtype (not a bare RwLock<HashMap>) so the ServiceRegistry TypeId can’t collide. Registered empty at boot; the Phase-8 plugin loader is the populator (none exists yet — the seam is ready). RwLock gives the interior mutability a post-boot populate needs behind the shared Arc<ServiceRegistry>.

The second map aliases a plugin’s non-primary seam ids to its primary one. It is separate from the first on purpose: everything that ENUMERATES plugins (:list-plugins, gen:plugins) reads .0 and must see each plugin once, while provenance lookups go through Self::primary_of.

Tuple Fields

0: RwLock<HashMap<u32, PluginMeta>>

1: RwLock<HashMap<u32, u32>>

Implementations

impl PluginMetaRegistry

pub fn primary_of(&self, id: u32) -> u32

The primary id id belongs to — itself when it is one, or has no alias.

Trait Implementations

impl Default for PluginMetaRegistry

fn default() -> Self

Returns the “default value” for a type.

impl PluginMetaSink for PluginMetaRegistry

PL8.B: the write seam the plugin loader populates provenance through. The host registers the same registry instance as a PluginMetaSinkHandle service; lattice-plugin-loader writes each loaded plugin’s name/doc here so SourceLayer::Plugin(id) provenance + :list-plugins reflect it — without the loader naming this host type (dependency-cycle-free, per the sink docs).

fn register_plugin(&self, id: u32, name: String, doc: String)

Record a loaded plugin’s manifest name + doc against its host-issued numeric id, so SourceLayer::Plugin(id) provenance renders as the name and :list-plugins shows it. Called once per plugin at load.

fn unregister_plugin(&self, id: u32)

Forget a plugin’s metadata (unload / reload). Idempotent — a never-registered or already-removed id is a no-op.

fn register_seam_ids(&self, primary: u32, seam_ids: &[u32])

Record that seam_ids all belong to the plugin registered as primary.