Struct zng_task::McWaker

pub struct McWaker(/* private fields */);

A Waker that dispatches a wake call to multiple other wakers.

This is useful for sharing one wake source with multiple Waker clients that may not be all known at the moment the first request is made.

Implementations

impl McWaker

pub fn empty() -> Self

New empty waker.

pub fn push(&self, waker: Waker) -> Option<Waker>

Register a waker to wake once when self awakes.

Returns Some(self as waker) if self was previously empty, if None is returned Poll::Pending must be returned, if a waker is returned the shared resource must be polled using the waker, if the shared resource is ready cancel must be called.

pub fn cancel(&self)

Clear current registered wakers.

Trait Implementations

impl Clone for McWaker

fn clone(&self) -> McWaker

Returns a copy of the value.

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

Performs copy-assignment from source.