[−][src]Struct futures_util::io::Seek

#[must_use = "futures do nothing unless you `.await` or poll them"]
pub struct Seek<'a, S: ?Sized + Unpin> { /* fields omitted */ }

Future for the seek method.

Trait Implementations

impl<'_, S: ?Sized + Unpin> Unpin for Seek<'_, S>[src]

impl<'a, S: Debug + ?Sized + Unpin> Debug for Seek<'a, S>[src]

impl<'_, S: AsyncSeek + ?Sized + Unpin> Future for Seek<'_, S>[src]

type Output = Result<u64>

The type of value produced on completion.

Auto Trait Implementations

impl<'a, S: ?Sized> Sync for Seek<'a, S> where
    S: Sync, 

impl<'a, S: ?Sized> Send for Seek<'a, S> where
    S: Send, 

impl<'a, S> !UnwindSafe for Seek<'a, S>

impl<'a, S: ?Sized> RefUnwindSafe for Seek<'a, S> where
    S: RefUnwindSafe, 

Blanket Implementations

impl<T> FutureExt for T where
    T: Future + ?Sized, [src]

ⓘImportant traits for Map<Fut, F>
fn map<U, F>(self, f: F) -> Map<Self, F> where
    F: FnOnce(Self::Output) -> U,
    Self: Sized, [src]

Map this future's output to a different type, returning a new future of the resulting type. Read more

ⓘImportant traits for Then<Fut1, Fut2, F>
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
    F: FnOnce(Self::Output) -> Fut,
    Fut: Future,
    Self: Sized, [src]

Chain on a computation for when a future finished, passing the result of the future to the provided closure f. Read more

ⓘImportant traits for Either<A, B>
fn left_future<B>(self) -> Either<Self, B> where
    B: Future<Output = Self::Output>,
    Self: Sized, [src]

Wrap this future in an Either future, making it the left-hand variant of that Either. Read more

ⓘImportant traits for Either<A, B>
fn right_future<A>(self) -> Either<A, Self> where
    A: Future<Output = Self::Output>,
    Self: Sized, [src]

Wrap this future in an Either future, making it the right-hand variant of that Either. Read more

fn into_stream(self) -> IntoStream<Self> where
    Self: Sized, [src]

Convert this future into a single element stream. Read more

ⓘImportant traits for Flatten<Fut>
fn flatten(self) -> Flatten<Self> where
    Self::Output: Future,
    Self: Sized, [src]

Flatten the execution of this future when the successful result of this future is itself another future. Read more

fn flatten_stream(self) -> FlattenStream<Self> where
    Self::Output: Stream,
    Self: Sized, [src]

Flatten the execution of this future when the successful result of this future is a stream. Read more

ⓘImportant traits for Fuse<Fut>
fn fuse(self) -> Fuse<Self> where
    Self: Sized, [src]

Fuse a future such that poll will never again be called once it has completed. This method can be used to turn any Future into a FusedFuture. Read more

ⓘImportant traits for Inspect<Fut, F>
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
    F: FnOnce(&Self::Output),
    Self: Sized, [src]

Do something with the output of a future before passing it on. Read more

ⓘImportant traits for CatchUnwind<Fut>
fn catch_unwind(self) -> CatchUnwind<Self> where
    Self: Sized + UnwindSafe, [src]

Catches unwinding panics while polling the future. Read more

ⓘImportant traits for Shared<Fut>
fn shared(self) -> Shared<Self> where
    Self: Sized,
    Self::Output: Clone, [src]

Create a cloneable handle to this future where all handles will resolve to the same result. Read more

fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>) where
    Self: Sized, [src]

Turn this future into a future that yields () on completion and sends its output to another future on a separate task. Read more

fn boxed<'a>(self) -> BoxFuture<'a, Self::Output> where
    Self: Sized + Send + 'a, [src]

Wrap the future in a Box, pinning it. Read more

fn boxed_local<'a>(self) -> LocalBoxFuture<'a, Self::Output> where
    Self: Sized + 'a, [src]

Wrap the future in a Box, pinning it. Read more

ⓘImportant traits for UnitError<Fut>
fn unit_error(self) -> UnitError<Self> where
    Self: Sized, [src]

Turns a Future<Output = T> into a TryFuture<Ok = T, Error = ()>. Read more

ⓘImportant traits for NeverError<Fut>
fn never_error(self) -> NeverError<Self> where
    Self: Sized, [src]

Turns a Future<Output = T> into a TryFuture<Ok = T, Error = Never>. Read more

fn poll_unpin(&mut self, cx: &mut Context) -> Poll<Self::Output> where
    Self: Unpin, [src]

A convenience for calling Future::poll on Unpin future types.

fn now_or_never(self) -> Option<Self::Output> where
    Self: Sized, [src]

Evaluates and consumes the future, returning the resulting output if the future is ready after the first call to Future::poll. Read more

impl<Fut> TryFutureExt for Fut where
    Fut: TryFuture + ?Sized, [src]

fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
    Self::Ok: Sink<Item, Error = Self::Error>,
    Self: Sized, [src]

Flattens the execution of this future when the successful result of this future is a Sink. Read more

ⓘImportant traits for MapOk<Fut, F>
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
    F: FnOnce(Self::Ok) -> T,
    Self: Sized, [src]

Maps this future's success value to a different value. Read more

ⓘImportant traits for MapErr<Fut, F>
fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
    F: FnOnce(Self::Error) -> E,
    Self: Sized, [src]

Maps this future's error value to a different value. Read more

ⓘImportant traits for ErrInto<Fut, E>
fn err_into<E>(self) -> ErrInto<Self, E> where
    Self: Sized,
    Self::Error: Into<E>, [src]

Maps this future's Error to a new error type using the Into trait. Read more

ⓘImportant traits for AndThen<Fut1, Fut2, F>
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
    F: FnOnce(Self::Ok) -> Fut,
    Fut: TryFuture<Error = Self::Error>,
    Self: Sized, [src]

Executes another future after this one resolves successfully. The success value is passed to a closure to create this subsequent future. Read more

ⓘImportant traits for OrElse<Fut1, Fut2, F>
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
    F: FnOnce(Self::Error) -> Fut,
    Fut: TryFuture<Ok = Self::Ok>,
    Self: Sized, [src]

Executes another future if this one resolves to an error. The error value is passed to a closure to create this subsequent future. Read more

ⓘImportant traits for InspectOk<Fut, F>
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
    F: FnOnce(&Self::Ok),
    Self: Sized, [src]

Do something with the success value of a future before passing it on. Read more

ⓘImportant traits for InspectErr<Fut, F>
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
    F: FnOnce(&Self::Error),
    Self: Sized, [src]

Do something with the error value of a future before passing it on. Read more

fn try_flatten_stream(self) -> TryFlattenStream<Self> where
    Self::Ok: TryStream<Error = Self::Error>,
    Self: Sized, [src]

Flatten the execution of this future when the successful result of this future is a stream. Read more

ⓘImportant traits for UnwrapOrElse<Fut, F>
fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F> where
    Self: Sized,
    F: FnOnce(Self::Error) -> Self::Ok, [src]

Unwraps this future's ouput, producing a future with this future's Ok type as its Output type. Read more

ⓘImportant traits for Compat<R>
fn compat(self) -> Compat<Self> where
    Self: Sized + Unpin, [src]

Wraps a TryFuture into a future compatable with libraries using futures 0.1 future definitons. Requires the compat feature to enable. Read more

ⓘImportant traits for IntoFuture<Fut>
fn into_future(self) -> IntoFuture<Self> where
    Self: Sized, [src]

Wraps a TryFuture into a type that implements Future. Read more

fn try_poll_unpin(
    &mut self,
    cx: &mut Context
) -> Poll<Result<Self::Ok, Self::Error>> where
    Self: Unpin, [src]

A convenience method for calling TryFuture::try_poll on Unpin future types. Read more

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<F, T, E> TryFuture for F where
    F: Future<Output = Result<T, E>> + ?Sized, [src]

type Ok = T

The type of successful values yielded by this future

type Error = E

The type of failures yielded by this future

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,