Struct WeakTable 

pub struct WeakTable<T: Clone> { /* private fields */ }

A table of weak references to values.

Implementations

impl<T: Clone> WeakTable<T>

pub fn new() -> Self

Create an empty weak table.

pub fn register(&mut self, value: Arc<T>) -> u64

Register a strong reference, returning its key.

pub fn get(&mut self, key: u64) -> Option<Arc<T>>

Try to upgrade a weak reference.

pub fn prune(&mut self) -> usize

Prune all expired (dead) weak references.

pub fn len(&self) -> usize

Number of registered entries (including dead ones).

pub fn is_empty(&self) -> bool

Whether the table is empty.

pub fn miss_count(&self) -> u64

Number of times a lookup found a dead reference.

Trait Implementations

impl<T: Clone> Default for WeakTable<T>

fn default() -> Self

Returns the “default value” for a type.