Struct WakerSlot 

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

A single-slot, thread-safe storage for a Waker.

At most one waker is stored at any given time. A new call to store replaces the previous waker (the old one is dropped).

Implementations

impl WakerSlot

pub const fn new() -> Self

Creates an empty slot.

pub fn store(&self, waker: &Waker)

Stores waker, replacing and dropping any previously stored waker.

This is called by async futures from their poll implementation.

pub fn wake(&self)

Wakes and removes the stored waker, if any.

This is called by signalling paths (e.g. after posting to a queue) to notify the task waiting on the corresponding future.

Trait Implementations

impl Default for WakerSlot

fn default() -> Self

Returns the “default value” for a type.

impl Drop for WakerSlot

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Send for WakerSlot

impl Sync for WakerSlot