Enum libp2p_core::either::EitherOutput [−][src]
pub enum EitherOutput<A, B> { First(A), Second(B), }
Expand description
Implements AsyncRead
and AsyncWrite
and dispatches all method calls to
either First
or Second
.
Variants
Trait Implementations
Attempt to read from the AsyncRead
into buf
. Read more
type Error = EitherError<A::Error, B::Error>
type Error = EitherError<A::Error, B::Error>
The type of value produced by the sink when an error occurs.
Attempts to prepare the Sink
to receive a value. Read more
Begin the process of sending a value to the sink.
Each call to this function must be preceded by a successful call to
poll_ready
which returned Poll::Ready(Ok(()))
. Read more
Flush any remaining output from this sink. Read more
type Item = Result<I, EitherError<A::Error, B::Error>>
type Item = Result<I, EitherError<A::Error, B::Error>>
Values yielded by the stream.
Attempt to pull out the next value of this stream, registering the
current task for wakeup if the value is not yet available, and returning
None
if the stream is exhausted. Read more
type Substream = EitherOutput<A::Substream, B::Substream>
type Substream = EitherOutput<A::Substream, B::Substream>
Type of the object that represents the raw substream where data can be read and written.
type OutboundSubstream = EitherOutbound<A, B>
type OutboundSubstream = EitherOutbound<A, B>
Future that will be resolved when the outgoing substream is open.
fn poll_event(
&self,
cx: &mut Context<'_>
) -> Poll<Result<StreamMuxerEvent<Self::Substream>, Self::Error>>
fn poll_event(
&self,
cx: &mut Context<'_>
) -> Poll<Result<StreamMuxerEvent<Self::Substream>, Self::Error>>
Polls for a connection-wide event. Read more
Opens a new outgoing substream, and produces the equivalent to a future that will be resolved when it becomes available. Read more
fn poll_outbound(
&self,
cx: &mut Context<'_>,
substream: &mut Self::OutboundSubstream
) -> Poll<Result<Self::Substream, Self::Error>>
fn poll_outbound(
&self,
cx: &mut Context<'_>,
substream: &mut Self::OutboundSubstream
) -> Poll<Result<Self::Substream, Self::Error>>
Polls the outbound substream. Read more
Destroys an outbound substream future. Use this after the outbound substream has finished, or if you want to interrupt it. Read more
Reads data from a substream. The behaviour is the same as futures::AsyncRead::poll_read
. Read more
Write data to a substream. The behaviour is the same as futures::AsyncWrite::poll_write
. Read more
Flushes a substream. The behaviour is the same as futures::AsyncWrite::poll_flush
. Read more
Attempts to shut down the writing side of a substream. The behaviour is similar to
AsyncWrite::poll_close
. Read more
Destroys a substream.
Closes this StreamMuxer
. Read more
Flush this StreamMuxer
. Read more
This method is unused and will be removed in the future
Returns true
if the remote has shown any sign of activity after the muxer has been open. Read more
Auto Trait Implementations
impl<A, B> RefUnwindSafe for EitherOutput<A, B> where
A: RefUnwindSafe,
B: RefUnwindSafe,
impl<A, B> Send for EitherOutput<A, B> where
A: Send,
B: Send,
impl<A, B> Sync for EitherOutput<A, B> where
A: Sync,
B: Sync,
impl<A, B> UnwindSafe for EitherOutput<A, B> where
A: UnwindSafe,
B: UnwindSafe,
Blanket Implementations
impl<R> AsyncReadExt for R where
R: AsyncRead + ?Sized,
impl<R> AsyncReadExt for R where
R: AsyncRead + ?Sized,
fn chain<R>(self, next: R) -> Chain<Self, R> where
R: AsyncRead,
fn chain<R>(self, next: R) -> Chain<Self, R> where
R: AsyncRead,
Creates an adaptor which will chain this stream with another. Read more
Tries to read some bytes directly into the given buf
in asynchronous
manner, returning a future type. Read more
fn read_vectored(
&'a mut self,
bufs: &'a mut [IoSliceMut<'a>]
) -> ReadVectored<'a, Self> where
Self: Unpin,
fn read_vectored(
&'a mut self,
bufs: &'a mut [IoSliceMut<'a>]
) -> ReadVectored<'a, Self> where
Self: Unpin,
Creates a future which will read from the AsyncRead
into bufs
using vectored
IO operations. Read more
fn read_exact(&'a mut self, buf: &'a mut [u8]) -> ReadExact<'a, Self> where
Self: Unpin,
fn read_exact(&'a mut self, buf: &'a mut [u8]) -> ReadExact<'a, Self> where
Self: Unpin,
Creates a future which will read exactly enough bytes to fill buf
,
returning an error if end of file (EOF) is hit sooner. Read more
fn read_to_end(
&'a mut self,
buf: &'a mut Vec<u8, Global>
) -> ReadToEnd<'a, Self> where
Self: Unpin,
fn read_to_end(
&'a mut self,
buf: &'a mut Vec<u8, Global>
) -> ReadToEnd<'a, Self> where
Self: Unpin,
Creates a future which will read all the bytes from this AsyncRead
. Read more
fn read_to_string(&'a mut self, buf: &'a mut String) -> ReadToString<'a, Self> where
Self: Unpin,
fn read_to_string(&'a mut self, buf: &'a mut String) -> ReadToString<'a, Self> where
Self: Unpin,
Creates a future which will read all the bytes from this AsyncRead
. Read more
Helper method for splitting this read/write object into two halves. Read more
impl<W> AsyncWriteExt for W where
W: AsyncWrite + ?Sized,
impl<W> AsyncWriteExt for W where
W: AsyncWrite + ?Sized,
Creates a future which will entirely flush this AsyncWrite
. Read more
Creates a future which will entirely close this AsyncWrite
.
Creates a future which will write bytes from buf
into the object. Read more
fn write_vectored(
&'a mut self,
bufs: &'a [IoSlice<'a>]
) -> WriteVectored<'a, Self> where
Self: Unpin,
fn write_vectored(
&'a mut self,
bufs: &'a [IoSlice<'a>]
) -> WriteVectored<'a, Self> where
Self: Unpin,
Creates a future which will write bytes from bufs
into the object using vectored
IO operations. Read more
Write data into this object. Read more
Mutably borrows from an owned value. Read more
type Output = T
type Output = T
Should always be Self
impl<T, Item> SinkExt<Item> for T where
T: Sink<Item> + ?Sized,
impl<T, Item> SinkExt<Item> for T where
T: Sink<Item> + ?Sized,
Composes a function in front of the sink. Read more
fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, Item, U, St, F> where
F: FnMut(U) -> St,
St: Stream<Item = Result<Item, Self::Error>>,
fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, Item, U, St, F> where
F: FnMut(U) -> St,
St: Stream<Item = Result<Item, Self::Error>>,
Composes a function in front of the sink. Read more
fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
Transforms the error returned by the sink.
fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E> where
Self::Error: Into<E>,
fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E> where
Self::Error: Into<E>,
Map this sink’s error to a different error type using the Into
trait. Read more
Adds a fixed-size buffer to the current sink. Read more
Fanout items to multiple sinks. Read more
Flush the sink, processing all pending items. Read more
A future that completes after the given item has been fully processed into the sink, including flushing. Read more
A future that completes after the given item has been received by the sink. Read more
A future that completes after the given stream has been fully processed into the sink, including flushing. Read more
fn left_sink<Si2>(self) -> Either<Self, Si2> where
Si2: Sink<Item, Error = Self::Error>,
fn left_sink<Si2>(self) -> Either<Self, Si2> where
Si2: Sink<Item, Error = Self::Error>,
Wrap this sink in an Either
sink, making it the left-hand variant
of that Either
. Read more
fn right_sink<Si1>(self) -> Either<Si1, Self> where
Si1: Sink<Item, Error = Self::Error>,
fn right_sink<Si1>(self) -> Either<Si1, Self> where
Si1: Sink<Item, Error = Self::Error>,
Wrap this stream in an Either
stream, making it the right-hand variant
of that Either
. Read more
fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error> where
Self: Unpin,
fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error> where
Self: Unpin,
impl<T> StreamExt for T where
T: Stream + ?Sized,
impl<T> StreamExt for T where
T: Stream + ?Sized,
Creates a future that resolves to the next item in the stream. Read more
fn into_future(self) -> StreamFuture<Self> where
Self: Unpin,
fn into_future(self) -> StreamFuture<Self> where
Self: Unpin,
Maps this stream’s items to a different type, returning a new stream of the resulting type. Read more
fn enumerate(self) -> Enumerate<Self>
fn enumerate(self) -> Enumerate<Self>
Creates a stream which gives the current iteration count as well as the next value. Read more
Filters the values produced by this stream according to the provided asynchronous predicate. Read more
fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = Option<T>>,
fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = Option<T>>,
Filters the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more
Computes from this stream’s items new items of a different type using an asynchronous closure. Read more
Transforms a stream into a collection, returning a future representing the result of that computation. Read more
Converts a stream of pairs into a future, which resolves to pair of containers. Read more
fn concat(self) -> Concat<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
fn concat(self) -> Concat<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
Concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more
Execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more
fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,
fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,
Flattens a stream of streams into just one continuous stream. Read more
Maps a stream like [StreamExt::map
] but flattens nested Stream
s. Read more
Combinator similar to [StreamExt::fold
] that holds internal state
and produces a new stream. Read more
fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
Skip elements on this stream while the provided asynchronous predicate
resolves to true
. Read more
fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
Take elements from this stream while the provided asynchronous predicate
resolves to true
. Read more
fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where
Fut: Future,
fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where
Fut: Future,
Take elements from this stream until the provided future resolves. Read more
Runs this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more
Runs this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available. Read more
Creates a new stream of at most n
items of the underlying stream. Read more
Creates a new stream which skips n
items of the underlying stream. Read more
fn fuse(self) -> Fuse<Self>
fn fuse(self) -> Fuse<Self>
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
Catches unwinding panics while polling the stream. Read more
Wrap the stream in a Box, pinning it. Read more
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where
Self: 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where
Self: 'a,
Wrap the stream in a Box, pinning it. Read more
An adaptor for creating a buffered list of pending futures. Read more
fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
Self::Item: Future,
fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
Self::Item: Future,
An adaptor for creating a buffered list of pending futures (unordered). Read more
fn zip<St>(self, other: St) -> Zip<Self, St> where
St: Stream,
fn zip<St>(self, other: St) -> Zip<Self, St> where
St: Stream,
An adapter for zipping two streams together. Read more
fn chain<St>(self, other: St) -> Chain<Self, St> where
St: Stream<Item = Self::Item>,
fn chain<St>(self, other: St) -> Chain<Self, St> where
St: Stream<Item = Self::Item>,
Adapter for chaining two streams. Read more
An adaptor for chunking up items of the stream inside a vector. Read more
fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>
fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>
An adaptor for chunking up ready items of the stream inside a vector. Read more
fn forward<S>(self, sink: S) -> Forward<Self, S> where
Self: TryStream,
S: Sink<Self::Ok, Error = Self::Error>,
fn forward<S>(self, sink: S) -> Forward<Self, S> where
Self: TryStream,
S: Sink<Self::Ok, Error = Self::Error>,
A future that completes after the given stream has been fully processed into the sink and the sink has been flushed and closed. Read more
Splits this Stream + Sink
object into separate Sink
and Stream
objects. Read more
Do something with each item of this stream, afterwards passing it on. Read more
fn left_stream<B>(self) -> Either<Self, B> where
B: Stream<Item = Self::Item>,
fn left_stream<B>(self) -> Either<Self, B> where
B: Stream<Item = Self::Item>,
Wrap this stream in an Either
stream, making it the left-hand variant
of that Either
. Read more
fn right_stream<B>(self) -> Either<B, Self> where
B: Stream<Item = Self::Item>,
fn right_stream<B>(self) -> Either<B, Self> where
B: Stream<Item = Self::Item>,
Wrap this stream in an Either
stream, making it the right-hand variant
of that Either
. Read more
fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> where
Self: Unpin,
fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> where
Self: Unpin,
fn select_next_some(&mut self) -> SelectNextSome<'_, Self> where
Self: Unpin + FusedStream,
fn select_next_some(&mut self) -> SelectNextSome<'_, Self> where
Self: Unpin + FusedStream,
impl<S> TryStreamExt for S where
S: TryStream + ?Sized,
impl<S> TryStreamExt for S where
S: TryStream + ?Sized,
Wraps the current stream in a new stream which converts the error type into the one provided. Read more
Wraps the current stream in a new stream which maps the success value using the provided closure. Read more
Wraps the current stream in a new stream which maps the error value using the provided closure. Read more
Chain on a computation for when a value is ready, passing the successful
results to the provided closure f
. Read more
Chain on a computation for when an error happens, passing the
erroneous result to the provided closure f
. Read more
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnMut(&Self::Ok),
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnMut(&Self::Ok),
Do something with the success value of this stream, afterwards passing it on. Read more
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnMut(&Self::Error),
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnMut(&Self::Error),
Do something with the error value of this stream, afterwards passing it on. Read more
fn into_stream(self) -> IntoStream<Self>
fn into_stream(self) -> IntoStream<Self>
Creates a future that attempts to resolve the next item in the stream. If an error is encountered before the next item, the error is returned instead. Read more
fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = (), Error = Self::Error>,
fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = (), Error = Self::Error>,
Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more
fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,
fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,
Skip elements on this stream while the provided asynchronous predicate
resolves to true
. Read more
fn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,
fn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,
Take elements on this stream while the provided asynchronous predicate
resolves to true
. Read more
Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available, exiting as soon as an error occurs. Read more
fn try_collect<C>(self) -> TryCollect<Self, C> where
C: Default + Extend<Self::Ok>,
fn try_collect<C>(self) -> TryCollect<Self, C> where
C: Default + Extend<Self::Ok>,
Attempt to transform a stream into a collection, returning a future representing the result of that computation. Read more
fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: Future<Output = bool>,
fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: Future<Output = bool>,
Attempt to filter the values produced by this stream according to the provided asynchronous closure. Read more
fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>,
fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>,
Attempt to filter the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more
fn try_flatten(self) -> TryFlatten<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>,
fn try_flatten(self) -> TryFlatten<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>,
Flattens a stream of streams into just one continuous stream. Read more
Attempt to execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more
fn try_concat(self) -> TryConcat<Self> where
Self::Ok: Extend<<Self::Ok as IntoIterator>::Item>,
Self::Ok: IntoIterator,
Self::Ok: Default,
fn try_concat(self) -> TryConcat<Self> where
Self::Ok: Extend<<Self::Ok as IntoIterator>::Item>,
Self::Ok: IntoIterator,
Self::Ok: Default,
Attempt to concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more
fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
Attempt to execute several futures from a stream concurrently (unordered). Read more
fn try_buffered(self, n: usize) -> TryBuffered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
fn try_buffered(self, n: usize) -> TryBuffered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
Attempt to execute several futures from a stream concurrently. Read more
pub fn vzip(self) -> V