Struct futures_core::task::Context [−][src]
pub struct Context<'a> { /* fields omitted */ }🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
Information about the currently-running task.
Contexts are always tied to the stack, since they are set up specifically
when performing a single poll step on a task.
Methods
impl<'a> Context<'a>[src]
impl<'a> Context<'a>pub fn new(
local_waker: &'a LocalWaker,
executor: &'a mut (Executor + 'a)
) -> Context<'a>[src]
pub fn new(
local_waker: &'a LocalWaker,
executor: &'a mut (Executor + 'a)
) -> Context<'a>🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
Create a new task Context with the provided local_waker, waker, and executor.
pub fn local_waker(&self) -> &'a LocalWaker[src]
pub fn local_waker(&self) -> &'a LocalWaker🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
Get the LocalWaker associated with the current task.
pub fn waker(&self) -> &'a Waker[src]
pub fn waker(&self) -> &'a Waker🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
Get the Waker associated with the current task.
pub fn executor(&mut self) -> &mut Executor[src]
pub fn executor(&mut self) -> &mut Executor🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
Get the default executor associated with this task.
This method is useful primarily if you want to explicitly handle spawn failures.
pub fn with_waker(&'b mut self, local_waker: &'b LocalWaker) -> Context<'b>[src]
pub fn with_waker(&'b mut self, local_waker: &'b LocalWaker) -> Context<'b>🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
Produce a context like the current one, but using the given waker instead.
This advanced method is primarily used when building "internal schedulers" within a task, where you want to provide some customized wakeup logic.
pub fn with_executor<E>(&'b mut self, executor: &'b mut E) -> Context<'b> where
E: Executor, [src]
pub fn with_executor<E>(&'b mut self, executor: &'b mut E) -> Context<'b> where
E: Executor, 🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
Produce a context like the current one, but using the given executor instead.
This advanced method is primarily used when building "internal schedulers" within a task.
Trait Implementations
Auto Trait Implementations
Blanket Implementations
impl<T> From for T[src]
impl<T> From for Timpl<T, U> TryFrom for T where
T: From<U>, [src]
impl<T, U> TryFrom for T where
T: From<U>, type Error = !
try_from)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>try_from)Performs the conversion.
impl<T, U> TryInto for T where
U: TryFrom<T>, [src]
impl<T, U> TryInto for T where
U: TryFrom<T>, type Error = <U as TryFrom<T>>::Error
try_from)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>try_from)Performs the conversion.
impl<T, U> Into for T where
U: From<T>, [src]
impl<T, U> Into for T where
U: From<T>, impl<T> Borrow for T where
T: ?Sized, [src]
impl<T> Borrow for T where
T: ?Sized, ⓘImportant traits for &'a mut Ifn borrow(&self) -> &T[src]
fn borrow(&self) -> &TImmutably borrows from an owned value. Read more
impl<T> BorrowMut for T where
T: ?Sized, [src]
impl<T> BorrowMut for T where
T: ?Sized, ⓘImportant traits for &'a mut Ifn borrow_mut(&mut self) -> &mut T[src]
fn borrow_mut(&mut self) -> &mut TMutably borrows from an owned value. Read more
impl<T> Any for T where
T: 'static + ?Sized, [src]
impl<T> Any for T where
T: 'static + ?Sized, fn get_type_id(&self) -> TypeId[src]
fn get_type_id(&self) -> TypeId🔬 This is a nightly-only experimental API. (get_type_id)
this method will likely be replaced by an associated static
Gets the TypeId of self. Read more