Struct futures_util::future::WeakShared

pub struct WeakShared<Fut: Future>(_);

A weak reference to a Shared that can be upgraded much like an Arc.

Implementations

impl<Fut: Future> WeakShared<Fut>

pub fn upgrade(&self) -> Option<Shared<Fut>>

Attempts to upgrade this WeakShared into a Shared.

Returns None if all clones of the Shared have been dropped or polled to completion.

Trait Implementations

impl<Fut: Future> Clone for WeakShared<Fut>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Fut: Future> Debug for WeakShared<Fut>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.