Struct RuntimeReadContext 

pub struct RuntimeReadContext {
    pub head: HeadState,
    pub head_etag: String,
    pub basis: MetadataBasis,
    pub table_cache: Arc<MetadataTableCache>,
    pub tail_cache: Arc<WalTailProjectionCache>,
}

The pinned inputs the runtime resolves once per read: the head anchored to its manifest, the shared caches, and (when the runtime has it) the namespace’s immutable catalog pair.

This is the runtime seam: the loonfs crate pins one context per request and fans every read of that request through it, so the whole request observes a single snapshot and shares the caches. It is a sanctioned public hook (STYLE, “Harness hooks are sanctioned”), not an application API — embedded applications use the loonfs handles, which drive this seam internally.

Fields

head: HeadState

head_etag: String

basis: MetadataBasis

The materialized basis the head authorized when the anchor was taken. It carries the namespace’s own root when it has one, and the genesis or fork basis until then.

table_cache: Arc<MetadataTableCache>

tail_cache: Arc<WalTailProjectionCache>

Trait Implementations

impl Clone for RuntimeReadContext

fn clone(&self) -> RuntimeReadContext

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RuntimeReadContext

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.