Struct `Context`

pub struct Context<'a> { pub(in ::task::wake) waker: &'a Waker, pub(in ::task::wake) local_waker: &'a LocalWaker, pub(in ::task::wake) ext: AssertUnwindSafe<ExtData<'a>>, pub(in ::task::wake) _marker: PhantomData<fn(&'a ()) -> &'a ()>, pub(in ::task::wake) _marker2: PhantomData<*mut ()> }

The context of an asynchronous task.

Currently, Context only serves to provide access to a &Waker which can be used to wake the current task.

Fields

waker: &'a Waker
local_waker: &'a LocalWaker
ext: AssertUnwindSafe<ExtData<'a>>
_marker: PhantomData<fn(&'a ()) -> &'a ()>
_marker2: PhantomData<*mut ()>

Implementations

`impl<'a> Context<'a>`

const fn from_waker(waker: &'a Waker) -> Self: Creates a new Context from a &Waker.
const fn waker(&self) -> &'a Waker: Returns a reference to the Waker for the current task.
const fn local_waker(&self) -> &'a LocalWaker: Returns a reference to the LocalWaker for the current task.
const fn ext(&mut self) -> &mut dyn Any: Returns a reference to the extension data for the current task.

Trait Implementations

`impl Debug for Context<'_>`

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

Auto Trait Implementations

`impl<'a> !Send for Context<'a>`

`impl<'a> !Sync for Context<'a>`

`impl<'a> Freeze for Context<'a>`

`impl<'a> RefUnwindSafe for Context<'a>`

`impl<'a> Unpin for Context<'a>`

`impl<'a> UnsafeUnpin for Context<'a>`

`impl<'a> UnwindSafe for Context<'a>`

Blanket Implementations

`impl<T> Any for Context<'a> where T: 'static + ?Sized,`

fn type_id(&self) -> TypeId

`impl<T> Borrow<T> for Context<'a> where T: ?Sized,`

fn borrow(&self) -> &T

`impl<T> BorrowMut<T> for Context<'a> where T: ?Sized,`

fn borrow_mut(&mut self) -> &mut T

`impl<T> From<T> for Context<'a>`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> SizeHint for Context<'a> where T: ?Sized,`

fn lower_bound(&self) -> usize
fn upper_bound(&self) -> Option<usize>

`impl<T> SizedTypeProperties for Context<'a>`

`impl<T, U> Into for Context<'a> where U: From<T>,`

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

`impl<T, U> TryFrom for Context<'a> where U: Into<T>,`

type Error = Infallible;
fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

`impl<T, U> TryInto for Context<'a> where U: TryFrom<T>,`

type Error = >::Error;
fn try_into(self) -> Result<U, >::Error>