Struct inanis::cache::pawns::PHTable

pub struct PHTable {
    pub table: Vec<PHTableEntry>,
}

Fields

table: Vec<PHTableEntry>

Implementations

impl PHTable

pub fn new(size: usize) -> Self

Constructs a new instance of PHTable by allocating size bytes of memory.

pub fn add(&self, hash: u64, score_opening: i16, score_ending: i16)

Adds a new entry (storing the key, score_opening and score_ending) using hash to calculate an index.

pub fn get(&self, hash: u64) -> Option<PHTableResult>

Gets a wanted entry using hash to calculate an index. Returns None if entry does not exists or hash is incompatible with the stored key.

pub fn get_usage(&self, resolution: usize) -> f32

Calculates an approximate percentage usage of the table, based on the first resolution entries.

fn get_key(&self, hash: u64) -> u16

Calculates a key for the hash by taking first 16 bits of it.

fn get_index(&self, hash: u64) -> usize

Calculates an index for the hash.