Struct tokio_codec::FramedRead

[+] Show declaration

pub struct FramedRead<T, D> { /* fields omitted */ }

[−] Expand description

A Stream of messages decoded from an AsyncRead.

Implementations

impl<T, D> FramedRead<T, D> where
    T: AsyncRead,
    D: Decoder, [−]

pub fn new(inner: T, decoder: D) -> FramedRead<T, D>[−]

Creates a new FramedRead with the given decoder.

impl<T, D> FramedRead<T, D>[−]

pub fn get_ref(&self) -> &T[−]

Returns a reference to the underlying I/O stream wrapped by FramedRead.

Note that care should be taken to not tamper with the underlying stream of data coming in as it may corrupt the stream of frames otherwise being worked with.

pub fn get_mut(&mut self) -> &mut T[−]

Returns a mutable reference to the underlying I/O stream wrapped by FramedRead.

Note that care should be taken to not tamper with the underlying stream of data coming in as it may corrupt the stream of frames otherwise being worked with.

pub fn into_inner(self) -> T[−]

Consumes the FramedRead, returning its underlying I/O stream.

Note that care should be taken to not tamper with the underlying stream of data coming in as it may corrupt the stream of frames otherwise being worked with.

pub fn decoder(&self) -> &D[−]

Returns a reference to the underlying decoder.

pub fn decoder_mut(&mut self) -> &mut D[−]

Returns a mutable reference to the underlying decoder.

Trait Implementations

impl<T, D> Debug for FramedRead<T, D> where
    T: Debug,
    D: Debug, [+]

[+] Show hidden undocumented items

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>[−]

Formats the value using the given formatter.

impl<T, D> Sink for FramedRead<T, D> where
    T: Sink, [+]

[+] Show hidden undocumented items

type SinkItem = <T as Sink>::SinkItem

The type of value that the sink accepts.

type SinkError = <T as Sink>::SinkError

The type of value produced by the sink when an error occurs.

pub fn start_send(
    &mut self,
    item: <FramedRead<T, D> as Sink>::SinkItem
) -> Result<AsyncSink<<FramedRead<T, D> as Sink>::SinkItem>, <FramedRead<T, D> as Sink>::SinkError>[−]

Begin the process of sending a value to the sink.

pub fn poll_complete(
    &mut self
) -> Result<Async<()>, <FramedRead<T, D> as Sink>::SinkError>[−]

Flush all output from this sink, if necessary.

pub fn close(
    &mut self
) -> Result<Async<()>, <FramedRead<T, D> as Sink>::SinkError>[−]

A method to indicate that no more values will ever be pushed into this sink.

pub fn wait(self) -> Wait<Self>[−]

Creates a new object which will produce a synchronous sink.

pub fn with<U, F, Fut>(self, f: F) -> With<Self, U, F, Fut> where
    F: FnMut(U) -> Fut,
    Fut: IntoFuture<Item = Self::SinkItem>,
    <Fut as IntoFuture>::Error: From<Self::SinkError>, [−]

Composes a function in front of the sink.

pub fn with_flat_map<U, F, St>(self, f: F) -> WithFlatMap<Self, U, F, St> where
    F: FnMut(U) -> St,
    St: Stream<Item = Self::SinkItem, Error = Self::SinkError>, [−]

Composes a function in front of the sink.

pub fn sink_map_err<F, E>(self, f: F) -> SinkMapErr<Self, F> where
    F: FnOnce(Self::SinkError) -> E, [−]

Transforms the error returned by the sink.

pub fn sink_from_err<E>(self) -> SinkFromErr<Self, E> where
    E: From<Self::SinkError>, [−]

Map this sink’s error to any error implementing From for this sink’s Error, returning a new sink.

pub fn buffer(self, amt: usize) -> Buffer<Self>[−]

Adds a fixed-size buffer to the current sink.

pub fn fanout<S>(self, other: S) -> Fanout<Self, S> where
    S: Sink<SinkItem = Self::SinkItem, SinkError = Self::SinkError>,
    Self::SinkItem: Clone, [−]

Fanout items to multiple sinks.

pub fn flush(self) -> Flush<Self>[−]

A future that completes when the sink has finished processing all pending requests.

pub fn send(self, item: Self::SinkItem) -> Send<Self>[−]

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

pub fn send_all<S>(self, stream: S) -> SendAll<Self, S> where
    S: Stream<Item = Self::SinkItem>,
    Self::SinkError: From<<S as Stream>::Error>, [−]

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

impl<T, D> Stream for FramedRead<T, D> where
    T: AsyncRead,
    D: Decoder, [+]

[+] Show hidden undocumented items

type Item = <D as Decoder>::Item

The type of item this stream will yield on success.

type Error = <D as Decoder>::Error

The type of error this stream may generate.

pub fn poll(
    &mut self
) -> Result<Async<Option<<FramedRead<T, D> as Stream>::Item>>, <FramedRead<T, D> as Stream>::Error>[−]

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

pub fn wait(self) -> Wait<Self>[−]

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

pub fn into_future(self) -> StreamFuture<Self>[−]

Converts this stream into a Future.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

pub fn collect(self) -> Collect<Self>[−]

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

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

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

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

👎 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.

pub 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>, [−]

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

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

Flattens a stream of streams into just one continuous stream.

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

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

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

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

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

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

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

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

pub fn take(self, amt: u64) -> Take<Self>[−]

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

pub fn skip(self, amt: u64) -> Skip<Self>[−]

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

pub fn fuse(self) -> Fuse<Self>[−]

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

pub fn by_ref(&mut self) -> &mut Self[−]

Borrows a stream, rather than consuming it.

pub fn catch_unwind(self) -> CatchUnwind<Self> where
    Self: UnwindSafe, [−]

Catches unwinding panics while polling the stream.

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

An adaptor for creating a buffered list of pending futures.

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

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

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

👎 Deprecated:

functionality provided by select now

An adapter for merging the output of two streams.

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

An adapter for zipping two streams together.

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

Adapter for chaining two stream.

pub fn peekable(self) -> Peekable<Self>[−]

Creates a new stream which exposes a peek method.

pub fn chunks(self, capacity: usize) -> Chunks<Self>[−]

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

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

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

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

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

pub fn split(self) -> (SplitSink<Self>, SplitStream<Self>) where
    Self: Sink, [−]

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

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

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

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

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