Struct SimpleShardMap 

pub struct SimpleShardMap { /* private fields */ }

A fixed-shard key-value map.

Keys are hashed with FNV-1a, then assigned to a shard via modulo. Each shard holds an independent HashMap to allow future parallelism.

Implementations

impl SimpleShardMap

pub fn new(num_shards: u32) -> Self

Create a new shard map with num_shards shards.

pub fn insert(&mut self, key: &[u8], value: Vec<u8>)

Insert a key-value pair.

pub fn get(&self, key: &[u8]) -> Option<&[u8]>

Get a value by key.

pub fn len(&self) -> usize

Number of entries across all shards.

pub fn is_empty(&self) -> bool

Returns true if the map has no entries.

pub fn shard_counts(&self) -> Vec<usize>

Returns entries-per-shard counts for load analysis.

Trait Implementations

impl Debug for SimpleShardMap

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

Formats the value using the given formatter.