Struct SendAsyncScope 

pub struct SendAsyncScope<'a> { /* private fields */ }

Available on crate feature alloc only.

A LIFO stack of Send asynchronous cleanup actions.

Deferred closures and the futures they return must implement Send. Execution and cancellation behavior match LocalAsyncScope.

Implementations

impl<'a> SendAsyncScope<'a>

pub const fn new() -> Self

Creates an empty scope.

pub fn with_capacity(capacity: usize) -> Self

Creates an empty scope with space for at least capacity actions.

pub fn defer<F, Fut>(&mut self, action: F)

where F: FnOnce() -> Fut + Send + 'a, Fut: Future<Output = ()> + Send + 'a,

Queues a Send cleanup closure without invoking it.

pub fn len(&self) -> usize

Returns the number of cleanup actions that have not completed.

pub fn capacity(&self) -> usize

Returns the number of actions the scope can hold without reallocating.

pub fn is_empty(&self) -> bool

Returns true when no cleanup actions remain.

pub fn clear(&mut self)

Drops all queued actions without polling them further.

pub fn run(&mut self) -> SendRun<'_, 'a>

Borrows the scope and drains its actions in LIFO order.

pub async fn finish(self)

Consumes the scope and runs its actions in LIFO order.

Dropping the returned future also drops every remaining action.

Trait Implementations

impl Debug for SendAsyncScope<'_>

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

Formats the value using the given formatter.

impl Default for SendAsyncScope<'_>

fn default() -> Self

Returns the “default value” for a type.