Struct fuchsia_bluetooth::detachable_map::DetachableWeak

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

A weak reference to an entry in a DetachableMap. This is a weak reference, if the entry is detached before it is upgraded, the entry can be gone.

Implementations

impl<K: Hash + Eq, V> DetachableWeak<K, V>

pub fn upgrade(&self) -> Option<Arc<V>>

Attempt to upgrade the weak pointer to an Arc, extending the lifetime of the value if successful. Returns None if the item has been dropped (by another client detaching this)

pub fn detach(self)

Destroys the original reference to this vended item. If other references to the item exist (from upgrade), it will not be dropped until those references are dropped.

pub fn key(&self) -> &K

Get a reference to the key for this entry.

Trait Implementations

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

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.