Module content_routing_cache 

Content Routing Cache — multi-tier DHT routing cache.

Stores provider records, routing hints, and negative cache entries to reduce DHT lookup latency. Organises data into three independent tiers with configurable per-tier TTLs, per-CID provider limits, and global capacity caps with oldest-CID eviction.

Structs

CacheConfig

Configuration for ContentRoutingCache.

CacheStats

Snapshot of cache statistics.

ContentRoutingCache

Multi-tier cache for DHT content routing.

CrcProviderRecord

A single provider record: which peer provides a given CID.

NegativeCacheEntry

Negative-cache entry: CID was looked up and not found.

RoutingHint

Cached routing hint: the nearest peers known for a CID.

Constants

DEFAULT_HINT_TTL_MS

Default routing-hint TTL: 5 minutes in milliseconds.

DEFAULT_MAX_HINTS

Default routing-hint cache capacity (number of distinct CIDs).

DEFAULT_MAX_NEGATIVE

Default negative cache capacity (number of distinct CIDs).

DEFAULT_MAX_PROVIDERS

Default provider cache capacity (number of distinct CIDs).

DEFAULT_NEGATIVE_TTL_MS

Default negative-entry TTL: 1 minute in milliseconds.

DEFAULT_PROVIDER_TTL_MS

Default provider record TTL: 1 hour in milliseconds.