Struct async_bincode::AsyncBincodeReader

[+] Show declaration

pub struct AsyncBincodeReader<R, T> { /* fields omitted */ }

[−] Expand description

A wrapper around an asynchronous reader that produces an asynchronous stream of bincode-decoded values.

To use, provide a reader that implements tokio::io::AsyncRead, and then use futures::Stream to access the deserialized values.

Note that the sender must prefix each serialized item with its size as reported by bincode::serialized_size encoded as a four-byte network-endian encoded. See also serialize_into, which does this for you.

Methods

impl<R, T> AsyncBincodeReader<R, T>

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pub fn get_ref(&self) -> &R

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Gets a reference to the underlying reader.

It is inadvisable to directly read from the underlying reader.

pub fn get_mut(&mut self) -> &mut R

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Gets a mutable reference to the underlying reader.

It is inadvisable to directly read from the underlying reader.

pub fn buffer(&self) -> &[u8]

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Returns a reference to the internally buffered data.

This will not attempt to fill the buffer if it is empty.

pub fn into_inner(self) -> R

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Unwraps this AsyncBincodeReader, returning the underlying reader.

Note that any leftover data in the internal buffer is lost.

Trait Implementations

impl<R: Debug, T: Debug> Debug for AsyncBincodeReader<R, T>

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fn fmt(&self, f: &mut Formatter) -> Result

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Formats the value using the given formatter.

impl<R, T> Default for AsyncBincodeReader<R, T> where     R: Default,

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fn default() -> Self

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Returns the "default value" for a type.

impl<R, T> From<R> for AsyncBincodeReader<R, T>

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fn from(reader: R) -> Self

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Performs the conversion.

impl<R, T> Stream for AsyncBincodeReader<R, T> where     T: Deserialize<'a>,     R: AsyncRead,

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type Item = T

The type of item this stream will yield on success.

type Error = Error

The type of error this stream may generate.

fn poll(&mut self) -> Result<Async<Option<Self::Item>>, Self::Error>

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Attempt to pull out the next value of this stream, returning None if the stream is finished.

fn wait(self) -> Wait<Self>

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Creates an iterator which blocks the current thread until each item of this stream is resolved.

fn into_future(self) -> StreamFuture<Self>

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Converts this stream into a Future.

fn map<U, F>(self, f: F) -> Map<Self, F> where     F: FnMut(Self::Item) -> U,

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Converts a stream of type T to a stream of type U.

fn map_err<U, F>(self, f: F) -> MapErr<Self, F> where     F: FnMut(Self::Error) -> U,

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Converts a stream of error type T to a stream of error type U.

fn filter<F>(self, f: F) -> Filter<Self, F> where     F: FnMut(&Self::Item) -> bool,

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Filters the values produced by this stream according to the provided predicate.

fn filter_map<F, B>(self, f: F) -> FilterMap<Self, F> where     F: FnMut(Self::Item) -> Option<B>,

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Filters the values produced by this stream while simultaneously mapping them to a different type.

fn then<F, U>(self, f: F) -> Then<Self, F, U> where     F: FnMut(Result<Self::Item, Self::Error>) -> U,     U: IntoFuture,

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Chain on a computation for when a value is ready, passing the resulting item to the provided closure f.

fn and_then<F, U>(self, f: F) -> AndThen<Self, F, U> where     F: FnMut(Self::Item) -> U,     U: IntoFuture<Error = Self::Error>,

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Chain on a computation for when a value is ready, passing the successful results to the provided closure f.

fn or_else<F, U>(self, f: F) -> OrElse<Self, F, U> where     F: FnMut(Self::Error) -> U,     U: IntoFuture<Item = Self::Item>,

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Chain on a computation for when an error happens, passing the erroneous result to the provided closure f.

fn collect(self) -> Collect<Self>

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Collect all of the values of this stream into a vector, returning a future representing the result of that computation.

fn concat2(self) -> Concat2<Self> where     Self::Item: Extend<<Self::Item as IntoIterator>::Item>,     Self::Item: IntoIterator,     Self::Item: Default,

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Concatenate all results of a stream into a single extendable destination, returning a future representing the end result.

fn concat(self) -> Concat<Self> where     Self::Item: Extend<<Self::Item as IntoIterator>::Item>,     Self::Item: IntoIterator,

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Deprecated since 0.1.14

: please use Stream::concat2 instead

Concatenate all results of a stream into a single extendable destination, returning a future representing the end result.

fn fold<F, T, Fut>(self, init: T, f: F) -> Fold<Self, F, Fut, T> where     F: FnMut(T, Self::Item) -> Fut,     Fut: IntoFuture<Item = T>,     Self::Error: From<<Fut as IntoFuture>::Error>,

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Execute an accumulating computation over a stream, collecting all the values into one final result.

fn flatten(self) -> Flatten<Self> where     Self::Item: Stream,     <Self::Item as Stream>::Error: From<Self::Error>,

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Flattens a stream of streams into just one continuous stream.

fn skip_while<P, R>(self, pred: P) -> SkipWhile<Self, P, R> where     P: FnMut(&Self::Item) -> R,     R: IntoFuture<Item = bool, Error = Self::Error>,

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Skip elements on this stream while the predicate provided resolves to true.

fn take_while<P, R>(self, pred: P) -> TakeWhile<Self, P, R> where     P: FnMut(&Self::Item) -> R,     R: IntoFuture<Item = bool, Error = Self::Error>,

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Take elements from this stream while the predicate provided resolves to true.

fn for_each<F, U>(self, f: F) -> ForEach<Self, F, U> where     F: FnMut(Self::Item) -> U,     U: IntoFuture<Item = (), Error = Self::Error>,

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Runs this stream to completion, executing the provided closure for each element on the stream.

fn from_err<E>(self) -> FromErr<Self, E> where     E: From<Self::Error>,

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Map this stream's error to any error implementing From for this stream's Error, returning a new stream.

fn take(self, amt: u64) -> Take<Self>

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Creates a new stream of at most amt items of the underlying stream.

fn skip(self, amt: u64) -> Skip<Self>

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Creates a new stream which skips amt items of the underlying stream.

fn fuse(self) -> Fuse<Self>

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Fuse a stream such that poll will never again be called once it has finished.

fn by_ref(&mut self) -> &mut Self

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Borrows a stream, rather than consuming it.

fn catch_unwind(self) -> CatchUnwind<Self> where     Self: UnwindSafe,

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Catches unwinding panics while polling the stream.

fn buffered(self, amt: usize) -> Buffered<Self> where     Self::Item: IntoFuture,     <Self::Item as IntoFuture>::Error == Self::Error,

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An adaptor for creating a buffered list of pending futures.

fn buffer_unordered(self, amt: usize) -> BufferUnordered<Self> where     Self::Item: IntoFuture,     <Self::Item as IntoFuture>::Error == Self::Error,

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An adaptor for creating a buffered list of pending futures (unordered).

fn merge<S>(self, other: S) -> Merge<Self, S> where     S: Stream<Error = Self::Error>,

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Deprecated

: functionality provided by select now

An adapter for merging the output of two streams.

fn zip<S>(self, other: S) -> Zip<Self, S> where     S: Stream<Error = Self::Error>,

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An adapter for zipping two streams together.

fn chain<S>(self, other: S) -> Chain<Self, S> where     S: Stream<Item = Self::Item, Error = Self::Error>,

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Adapter for chaining two stream.

fn peekable(self) -> Peekable<Self>

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Creates a new stream which exposes a peek method.

fn chunks(self, capacity: usize) -> Chunks<Self>

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An adaptor for chunking up items of the stream inside a vector.

fn select<S>(self, other: S) -> Select<Self, S> where     S: Stream<Item = Self::Item, Error = Self::Error>,

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Creates a stream that selects the next element from either this stream or the provided one, whichever is ready first.

fn forward<S>(self, sink: S) -> Forward<Self, S> where     S: Sink<SinkItem = Self::Item>,     Self::Error: From<<S as Sink>::SinkError>,

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A future that completes after the given stream has been fully processed into the sink, including flushing.

fn split(self) -> (SplitSink<Self>, SplitStream<Self>) where     Self: Sink,

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Splits this Stream + Sink object into separate Stream and Sink objects.

fn inspect<F>(self, f: F) -> Inspect<Self, F> where     F: FnMut(&Self::Item),

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Do something with each item of this stream, afterwards passing it on.

fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where     F: FnMut(&Self::Error),

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Do something with the error of this stream, afterwards passing it on.