Struct sharded::Shard

pub struct Shard<T> { /* fields omitted */ }

The sharded lock collection. This is the main data type in the crate. See also the type aliases Map, Set, and so on.

Examples

Shard a std::collections::HashMap using std::sync::RwLock

use std::collections::HashMap;
use std::sync::RwLock;
use sharded::{ShardLock, Shard};

let users = Shard::<RwLock<_>>::from(HashMap::<&str, User>::new());

let guard = users.read(&"uid-31356");
let user: Option<&User> = guard.get(&"uid-31356");

Implementations

impl<T> Shard<T>

pub fn insert<K, V>(&self, k: K, v: V) -> Option<V> where
    K: Hash + Eq + Clone,
    V: Clone,
    T: Lock<HashMap<K, V>>, 

impl<T> Shard<T>

pub fn from<K, V, U>(inner: U) -> Self where
    K: Hash,
    V: ExtractShardKey<K>,
    U: Collection<K, V>,
    T: Lock<U>, 

Create a new shard from an existing collection

impl<K: Hash + Eq + Clone, V: Clone> Shard<RwLock<HashMap<K, V, S>>>

pub fn new() -> Self

pub fn with_capacity(capacity: usize) -> Self

Trait Implementations

impl<K: Hash, V, U, L> ShardLock<K, V, U, L> for Shard<L> where
    V: ExtractShardKey<K>,
    U: Collection<K, V>,
    L: Lock<U>, 

fn shards<'a>(&'a self) -> &'a [L]

fn write(&self, k: &K) -> L::WriteGuard

fn read(&self, k: &K) -> L::ReadGuard