Module bm25_cache

Structs§

Bm25CacheEntry
IndexFingerprint: Cheap content fingerprint of the persisted index file: (mtime, size).

get_or_background: Get index from cache (fresh or stale), triggering background rebuild if stale. At most one rebuild per root runs at a time. Returns None only if no cache entry exists at all.
get_or_load: Get the BM25 index from cache if available and fresh, otherwise load/build, cache it, and return. Uses Arc to avoid cloning the entire index.
index_fingerprint: (mtime, size) fingerprint of the persisted BM25 index file for root.
memory_usage: Returns the approximate heap memory used by the cached BM25 index, or 0.
peek: The cached index for root, fresh or stale, without triggering a refresh.
shrink_resident_to_snippet: Trims the RESIDENT cached index for root so each chunk keeps only its first keep_lines lines of content, reclaiming the RAM held by full source bodies once the embedding pass has consumed them.
unload: Drops the cached BM25 index, freeing its heap memory. The index will be rebuilt from disk on the next search.