Struct MetadataViewSession 

pub struct MetadataViewSession<'a, 'store, S: ObjectStore + ?Sized> { /* private fields */ }

One loaded-view session with memoized visibility reads.

This is part of the read surface consumed by loonfs-grep; construction stays on the loaded view so callers cannot assemble incoherent sessions.

Implementations

impl<'a, 'store, S: ObjectStore + ?Sized> MetadataViewSession<'a, 'store, S>

pub async fn resolve_visible_path( &mut self, absolute_path: &AbsolutePath, prefetch_leaf_revision: LeafRevisionPrefetch, ) -> Result<ResolvedVisiblePath, CoreError>

Resolves absolute_path with the canonical visibility rules after a pipelined preload of the walk’s storage lookups.

For each path component, the preload issues the independent probes (inode, tombstone, child-keyed binding, the previous binding’s unbind fact) as one concurrent wave alongside the next component’s bound-child scan — the only lookup the walk truly serializes on — and seeds the session’s caches with exactly what those lookups would have fetched. The canonical rules then decide over cache hits, so a cold resolution costs one round-trip wave per path component instead of five-plus sequential lookups each. This is part of the read surface consumed by loonfs-grep.

pub async fn visible_inode( &mut self, inode_id: InodeId, ) -> Result<Option<InodeRecord>, CoreError>

Returns the inode when it is visible in this session’s snapshot.

This is part of the read surface consumed by loonfs-grep.

pub async fn latest_revision_head_of_visible( &mut self, inode_id: InodeId, ) -> Result<Option<RevisionRecord>, CoreError>

Returns the latest revision for an inode already proven visible at this session’s seq. Unlike [MetadataView::latest_revision_head], this skips re-deriving the inode’s visibility: the re-check costs a full child-binds scan and tombstone probe per entry on a wide listing, and it cannot disagree with the enumeration that admitted the entry at the same seq.

This is part of the read surface consumed by loonfs-grep.

pub async fn current_parent_binding_for_child( &mut self, child_inode_id: InodeId, ) -> Result<Option<DirentryBindRecord>, CoreError>

Returns the child’s active parent binding at the visible sequence.

This is part of the read surface consumed by loonfs-grep.