Module ahash_store 

AHashMap-backed state store with O(1) lookups and zero-copy reads. AHashMap-backed state store with dual-structure design.

AHashMapStore uses AHashMap<Vec<u8>, Vec<u8>> for O(1) point lookups and a BTreeMap<Vec<u8>, ()> index for efficient prefix/range scans. This is the first backend that supports zero-copy get_ref.

Performance Characteristics

• Get: O(1) average via AHashMap, < 200ns typical
• Get (zero-copy): O(1) via get_ref(), < 150ns typical
• Put: O(1) amortized (hash) + O(log n) (BTreeMap index)
• Delete: O(1) (hash) + O(log n) (BTreeMap index)
• Prefix scan: O(log n + k) via BTreeMap index
• Range scan: O(log n + k) via BTreeMap index

Structs

AHashMapStore

High-performance state store using AHashMap for point lookups and BTreeMap for ordered scans.