[−][src]Struct tokio_util::io::ReaderStream
This is supported on crate feature
io
only.Convert an AsyncRead
into a Stream
of byte chunks.
This stream is fused. It performs the inverse operation of
StreamReader
.
Example
use tokio::stream::StreamExt; use tokio_util::io::ReaderStream; // Create a stream of data. let data = b"hello, world!"; let mut stream = ReaderStream::new(&data[..]); // Read all of the chunks into a vector. let mut stream_contents = Vec::new(); while let Some(chunk) = stream.next().await { stream_contents.extend_from_slice(&chunk?); } // Once the chunks are concatenated, we should have the // original data. assert_eq!(stream_contents, data);
Implementations
impl<R: AsyncRead> ReaderStream<R>
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Trait Implementations
impl<R: Debug> Debug for ReaderStream<R>
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impl<R: AsyncRead> Stream for ReaderStream<R>
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type Item = Result<Bytes>
Values yielded by the stream.
pub fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>
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self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>
pub fn size_hint(&self) -> (usize, Option<usize>)
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impl<'__pin, R> Unpin for ReaderStream<R> where
__Origin<'__pin, R>: Unpin,
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__Origin<'__pin, R>: Unpin,
Auto Trait Implementations
impl<R> RefUnwindSafe for ReaderStream<R> where
R: RefUnwindSafe,
R: RefUnwindSafe,
impl<R> Send for ReaderStream<R> where
R: Send,
R: Send,
impl<R> Sync for ReaderStream<R> where
R: Sync,
R: Sync,
impl<R> UnwindSafe for ReaderStream<R> where
R: UnwindSafe,
R: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<St> StreamExt for St where
St: Stream + ?Sized,
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St: Stream + ?Sized,
pub fn next(&mut self) -> Next<'_, Self> where
Self: Unpin,
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Self: Unpin,
pub fn try_next<T, E>(&mut self) -> TryNext<'_, Self> where
Self: Stream<Item = Result<T, E>> + Unpin,
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Self: Stream<Item = Result<T, E>> + Unpin,
pub fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T,
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F: FnMut(Self::Item) -> T,
pub fn merge<U>(self, other: U) -> Merge<Self, U> where
U: Stream<Item = Self::Item>,
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U: Stream<Item = Self::Item>,
pub fn filter<F>(self, f: F) -> Filter<Self, F> where
F: FnMut(&Self::Item) -> bool,
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F: FnMut(&Self::Item) -> bool,
pub fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<T>,
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F: FnMut(Self::Item) -> Option<T>,
pub fn fuse(self) -> Fuse<Self>
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pub fn take(self, n: usize) -> Take<Self>
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pub fn take_while<F>(self, f: F) -> TakeWhile<Self, F> where
F: FnMut(&Self::Item) -> bool,
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F: FnMut(&Self::Item) -> bool,
pub fn skip(self, n: usize) -> Skip<Self>
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pub fn skip_while<F>(self, f: F) -> SkipWhile<Self, F> where
F: FnMut(&Self::Item) -> bool,
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F: FnMut(&Self::Item) -> bool,
pub fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F> where
F: FnMut(Self::Item) -> bool,
Self: Unpin,
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F: FnMut(Self::Item) -> bool,
Self: Unpin,
pub fn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F> where
F: FnMut(Self::Item) -> bool,
Self: Unpin,
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F: FnMut(Self::Item) -> bool,
Self: Unpin,
pub fn chain<U>(self, other: U) -> Chain<Self, U> where
U: Stream<Item = Self::Item>,
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U: Stream<Item = Self::Item>,
pub fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, B, F> where
F: FnMut(B, Self::Item) -> B,
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F: FnMut(B, Self::Item) -> B,
pub fn collect<T>(self) -> Collect<Self, T> where
T: FromStream<Self::Item>,
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T: FromStream<Self::Item>,
pub fn timeout(self, duration: Duration) -> Timeout<Self>
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pub fn throttle(self, duration: Duration) -> Throttle<Self>
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized,
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S: Stream<Item = Result<T, E>> + ?Sized,