Struct tracing::stdlib::task::Context

1.36.0 · source ·
pub struct Context<'a> {
    waker: &'a Waker,
    _marker: PhantomData<fn(_: &'a ()) -> &'a ()>,
    _marker2: PhantomData<*mut ()>,
}
Expand description

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§_marker: PhantomData<fn(_: &'a ()) -> &'a ()>§_marker2: PhantomData<*mut ()>

Implementations§

source§

impl<'a> Context<'a>

const: unstable · source

pub fn from_waker(waker: &'a Waker) -> Context<'a>

Create a new Context from a &Waker.

const: unstable · source

pub fn waker(&self) -> &'a Waker

Returns a reference to the Waker for the current task.

Trait Implementations§

source§

impl Debug for Context<'_>

source§

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

§

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

§

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

§

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

§

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

§

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

Blanket Implementations§

source§

impl<T> Any for Twhere
    T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for Twhere
    T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for Twhere
    T: ?Sized,

const: unstable · source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> for Twhere
    U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

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

source§

impl<T, U> TryFrom<U> for Twhere
    U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.
source§

impl<T, U> TryInto<U> for Twhere
    U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
    S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more