Struct NullCs 

pub struct NullCs;

A no-op content store — disables caching entirely at zero pipeline cost.

Trait Implementations

impl ContentStore for NullCs

async fn get(&self, _: &Interest) -> Option<CsEntry>

Look up a Data packet matching interest. Honours MustBeFresh and CanBePrefix selectors.

async fn insert(&self, _: Bytes, _: Arc<Name>, _: CsMeta) -> InsertResult

Store a Data packet. May evict least-recently-used entries to make room.

async fn evict(&self, _: &Name) -> bool

Explicitly evict the entry for name.

fn capacity(&self) -> CsCapacity

Current capacity configuration.

fn variant_name(&self) -> &str

Human-readable name of this CS implementation (e.g. “lru”, “sharded-lru”).

fn len(&self) -> usize

Number of entries currently cached.

fn is_empty(&self) -> bool

Returns true if the content store contains no entries.

fn current_bytes(&self) -> usize

Total bytes currently used.

fn set_capacity(&self, _max_bytes: usize)

Update the maximum byte capacity at runtime.

fn evict_prefix( &self, _prefix: &Name, _limit: Option<usize>, ) -> impl Future<Output = usize> + Send

Evict all entries matching prefix, up to limit entries (None = unlimited). Returns the number of entries evicted.

fn stats(&self) -> CsStats

Snapshot of hit/miss/insert/eviction counters.