Struct lib_wc::sync::ds::BasicSharedMap

pub struct BasicSharedMap<K, V> { /* private fields */ }

A shared map that can be cloned and used in multiple threads

Implementations

impl<K, V> BasicSharedMap<K, V>where K: Eq + Hash,

pub fn new() -> Self

Create a new shared map

Examples

use lib_wc::sync::ds::BasicSharedMap;

let m: BasicSharedMap<u32, String> = BasicSharedMap::new();

pub fn insert(&self, key: K, value: V)

Insert a key-value pair into the map

Examples

use lib_wc::sync::ds::BasicSharedMap;

let m: BasicSharedMap<u32, String> = BasicSharedMap::new();

m.insert(1, "foo".to_string());

pub fn get(&self, key: &K) -> Option<V>where V: Clone,

Get a value from the map

Examples

use lib_wc::sync::ds::BasicSharedMap;    

let m: BasicSharedMap<u32, String> = BasicSharedMap::new();

m.insert(1, "foo".to_string());    

assert_eq!(m.get(&1), Some("foo".to_string()));

pub fn with_map<F, R>(&self, func: F) -> Result<R>where F: FnOnce(&mut HashMap<K, V>) -> R,

Atomically execute a function with a locked, mutable reference to the map

Examples

  use lib_wc::sync::ds::BasicSharedMap;

  let m: BasicSharedMap<u32, String> = BasicSharedMap::new();

  m.with_map(|map| {
    map.insert(1, "foo".to_string());
    map.insert(2, "bar".to_string());
  });

  assert_eq!(m.get(&1), Some("foo".to_string()));
  assert_eq!(m.get(&2), Some("bar".to_string()));

Trait Implementations

impl<K: Clone, V: Clone> Clone for BasicSharedMap<K, V>

fn clone(&self) -> BasicSharedMap<K, V>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<K, V> Default for BasicSharedMap<K, V>where K: Eq + Hash,

fn default() -> Self

Returns the “default value” for a type.