Struct PositionReader

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pub struct PositionReader<R: PositionRead> { /* private fields */ }

Expand description

PositionReader implements oio::Read based on PositionRead.

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impl<R: PositionRead> PositionReader<R>

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pub fn new(inner: R) -> Self

Create a new PositionReader.

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pub fn with_max_buf_size(self, buf_size: usize) -> Self

Set the maximum buffer size used by PositionReader.

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pub fn into_inner(self) -> R

Consume the reader and return the inner PositionRead.

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Panics if there are active streams that still share the inner reader.

Trait Implementations§

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impl<R: PositionRead> Read for PositionReader<R>

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async fn open( &self, range: BytesRange, ) -> Result<(RpRead, Box<dyn ReadStreamDyn>)>

Open a range stream for the given range.

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async fn read(&self, range: BytesRange) -> Result<(RpRead, Buffer)>

Read an exact bounded range into Buffer.

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impl<R> UnwindSafe for PositionReader<R>
where R: RefUnwindSafe,

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

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

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.

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type Init = T

The type for initializers.

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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more

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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more

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impl<T> ReadDyn for T
where T: Read + ?Sized,

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fn open_dyn( &self, range: BytesRange, ) -> Pin<Box<dyn Future<Output = Result<(RpRead, Box<dyn ReadStreamDyn>), Error>> + Send + '_>>

The dyn version of Read::open.

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fn read_dyn( &self, range: BytesRange, ) -> Pin<Box<dyn Future<Output = Result<(RpRead, Buffer), Error>> + Send + '_>>

The dyn version of Read::read.

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impl<T> Same for T

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type Output = T

Should always be Self

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

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type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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type Error = >::Error

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl<T> WithSubscriber for T

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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

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fn with_current_subscriber(self) -> WithDispatch<Self>

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

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impl<T> MaybeSend for T
where T: Send,

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Struct PositionReader Copy item path

Implementations§

impl<R: PositionRead> PositionReader<R>

pub fn new(inner: R) -> Self

pub fn with_max_buf_size(self, buf_size: usize) -> Self

pub fn into_inner(self) -> R

§Panics

Trait Implementations§

impl<R: PositionRead> Read for PositionReader<R>

async fn open( &self, range: BytesRange, ) -> Result<(RpRead, Box<dyn ReadStreamDyn>)>

async fn read(&self, range: BytesRange) -> Result<(RpRead, Buffer)>

Auto Trait Implementations§

impl<R> Freeze for PositionReader<R>

impl<R> RefUnwindSafe for PositionReader<R>where R: RefUnwindSafe,

impl<R> Send for PositionReader<R>

impl<R> Sync for PositionReader<R>

impl<R> Unpin for PositionReader<R>

impl<R> UnsafeUnpin for PositionReader<R>

impl<R> UnwindSafe for PositionReader<R>where R: RefUnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

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

fn in_current_span(self) -> Instrumented<Self>

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

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

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

fn and<P, B, E>(self, other: P) -> And<T, P>where T: Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>where T: Policy<B, E>, P: Policy<B, E>,

impl<T> ReadDyn for Twhere T: Read + ?Sized,

fn open_dyn( &self, range: BytesRange, ) -> Pin<Box<dyn Future<Output = Result<(RpRead, Box<dyn ReadStreamDyn>), Error>> + Send + '_>>

fn read_dyn( &self, range: BytesRange, ) -> Pin<Box<dyn Future<Output = Result<(RpRead, Buffer), Error>> + Send + '_>>

impl<T> Same for T

type Output = T

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

type Error = Infallible

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

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

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

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

impl<T> WithSubscriber for T

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

fn with_current_subscriber(self) -> WithDispatch<Self>

impl<T> MaybeSend for Twhere T: Send,

impl<T> MaybeSend for Twhere T: Send,

Struct PositionReader

impl<R> RefUnwindSafe for PositionReader<R>
where R: RefUnwindSafe,

impl<R> UnwindSafe for PositionReader<R>
where R: RefUnwindSafe,

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

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

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

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

impl<T> PolicyExt for T
where T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

impl<T> ReadDyn for T
where T: Read + ?Sized,

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

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

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

impl<T> MaybeSend for T
where T: Send,

impl<T> MaybeSend for T
where T: Send,