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

First(A)

Tuple Fields of First

0: A
Second(B)

Tuple Fields of Second

0: B

Trait Implementations

Attempt to read from the AsyncRead into buf. Read more

Attempt to read from the AsyncRead into bufs using vectored IO operations. Read more

Attempt to write bytes from buf into the object. Read more

Attempt to write bytes from bufs into the object using vectored IO operations. Read more

Attempt to flush the object, ensuring that any buffered data reach their destination. Read more

Attempt to close the object. Read more

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

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

Flush any remaining output and close this sink, if necessary. Read more

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

Returns the bounds on the remaining length of the stream. Read more

Type of the object that represents the raw substream where data can be read and written.

Future that will be resolved when the outgoing substream is open.

Error type of the muxer

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

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

👎 Deprecated:

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

Blanket Implementations

Gets the TypeId of self. Read more

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

Creates a future which will read from the AsyncRead into bufs using vectored IO operations. Read more

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

Creates a future which will read all the bytes from this AsyncRead. Read more

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

Creates an AsyncRead adapter which will read at most limit bytes from the underlying reader. Read more

Reads some bytes from the byte stream. Read more

Like [read()][AsyncReadExt::read()], except it reads into a slice of buffers. Read more

Reads the entire contents and appends them to a Vec. Read more

Reads the entire contents and appends them to a String. Read more

Reads the exact number of bytes required to fill buf. Read more

Creates an adapter which will read at most limit bytes from it. Read more

Converts this [AsyncRead] into a [Stream] of bytes. Read more

Creates an adapter which will chain this stream with another. Read more

Boxes the reader and changes its type to dyn AsyncRead + Send + 'a. Read more

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

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

Allow using an [AsyncWrite] as a Sink<Item: AsRef<[u8]>>. Read more

Writes some bytes into the byte stream. Read more

Like [write()][AsyncWriteExt::write()], except that it writes a slice of buffers. Read more

Writes an entire buffer into the byte stream. Read more

Flushes the stream to ensure that all buffered contents reach their destination. Read more

Closes the writer. Read more

Boxes the writer and changes its type to dyn AsyncWrite + Send + 'a. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

Reads some bytes from the byte stream. Read more

Like read, except that it reads into a slice of buffers. Read more

Reads all bytes from the byte stream. Read more

Reads all bytes from the byte stream and appends them into a string. Read more

Reads the exact number of bytes required to fill buf. Read more

Creates an adaptor which will read at most limit bytes from it. Read more

Creates a “by reference” adaptor for this instance of Read. Read more

Transforms this Read instance to a Stream over its bytes. Read more

Creates an adaptor which will chain this stream with another. Read more

Should always be Self

Composes a function in front of the sink. Read more

Composes a function in front of the sink. Read more

Transforms the error returned by the sink.

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

Close the sink.

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

Wrap this sink in an Either sink, making it the left-hand variant of that Either. Read more

Wrap this stream in an Either stream, making it the right-hand variant of that Either. Read more

A convenience method for calling [Sink::poll_ready] on Unpin sink types. Read more

A convenience method for calling [Sink::start_send] on Unpin sink types. Read more

A convenience method for calling [Sink::poll_flush] on Unpin sink types. Read more

A convenience method for calling [Sink::poll_close] on Unpin sink types. Read more

Creates a future that resolves to the next item in the stream. Read more

Converts this stream into a future of (next_item, tail_of_stream). If the stream terminates, then the next item is None. Read more

Maps this stream’s items to a different type, returning a new stream of the resulting type. Read more

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

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

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

Repeats a stream endlessly. Read more

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

Execute predicate over asynchronous stream, and return true if any element in stream satisfied a predicate. Read more

Execute predicate over asynchronous stream, and return true if all element in stream satisfied a predicate. Read more

Flattens a stream of streams into just one continuous stream. Read more

Maps a stream like [StreamExt::map] but flattens nested Streams. Read more

Combinator similar to [StreamExt::fold] that holds internal state and produces a new stream. Read more

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

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

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

Fuse a stream such that poll_next will never again be called once it has finished. This method can be used to turn any Stream into a FusedStream. Read more

Borrows a stream, rather than consuming it. Read more

Catches unwinding panics while polling the stream. Read more

Wrap the stream in a Box, pinning it. Read more

Wrap the stream in a Box, pinning it. Read more

An adaptor for creating a buffered list of pending futures. Read more

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

An adapter for zipping two streams together. Read more

Adapter for chaining two streams. Read more

Creates a new stream which exposes a peek method. Read more

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

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

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

Wrap this stream in an Either stream, making it the left-hand variant of that Either. Read more

Wrap this stream in an Either stream, making it the right-hand variant of that Either. Read more

A convenience method for calling [Stream::poll_next] on Unpin stream types. Read more

Returns a Future that resolves when the next item in this stream is ready. Read more

Advances the stream and returns the next value. Read more

Creates a stream that yields its first n elements. Read more

Creates a stream that yields elements based on a predicate. Read more

Creates a stream that yields each stepth element. Read more

Takes two streams and creates a new stream over both in sequence. Read more

Creates an stream which copies all of its elements. Read more

Creates an stream which copies all of its elements. Read more

Creates a stream that yields the provided values infinitely and in order. Read more

Creates a stream that gives the current element’s count as well as the next value. Read more

Takes a closure and creates a stream that calls that closure on every element of this stream. Read more

A combinator that does something with each element in the stream, passing the value on. Read more

Returns the last element of the stream. Read more

Creates a stream which ends after the first None. Read more

Creates a stream that uses a predicate to determine if an element should be yielded. Read more

Both filters and maps a stream. Read more

Returns the element that gives the minimum value with respect to the specified key function. If several elements are equally minimum, the first element is returned. If the stream is empty, None is returned. Read more

Returns the element that gives the maximum value with respect to the specified key function. If several elements are equally maximum, the first element is returned. If the stream is empty, None is returned. Read more

Returns the element that gives the minimum value with respect to the specified comparison function. If several elements are equally minimum, the first element is returned. If the stream is empty, None is returned. Read more

Returns the element that gives the maximum value. If several elements are equally maximum, the first element is returned. If the stream is empty, None is returned. Read more

Returns the element that gives the minimum value. If several elements are equally minimum, the first element is returned. If the stream is empty, None is returned. Read more

Returns the element that gives the maximum value with respect to the specified comparison function. If several elements are equally maximum, the first element is returned. If the stream is empty, None is returned. Read more

Returns the nth element of the stream. Read more

Tests if every element of the stream matches a predicate. Read more

Searches for an element in a stream that satisfies a predicate. Read more

Applies function to the elements of stream and returns the first non-none result. Read more

A combinator that applies a function to every element in a stream producing a single, final value. Read more

Call a closure on each element of the stream. Read more

Tests if any element of the stream matches a predicate. Read more

A stream adaptor similar to fold that holds internal state and produces a new stream. Read more

Combinator that skips elements based on a predicate. Read more

Creates a combinator that skips the first n elements. Read more

A combinator that applies a function as long as it returns successfully, producing a single, final value. Immediately returns the error when the function returns unsuccessfully. Read more

Applies a falliable function to each element in a stream, stopping at first error and returning it. Read more

‘Zips up’ two streams into a single stream of pairs. Read more

Lexicographically compares the elements of this Stream with those of another. Read more

Searches for an element in a Stream that satisfies a predicate, returning its index. Read more

Lexicographically compares the elements of this Stream with those of another using ‘Ord’. Read more

Determines if the elements of this Stream are lexicographically not equal to those of another. Read more

Determines if the elements of this Stream are lexicographically greater than or equal to those of another. Read more

Determines if the elements of this Stream are lexicographically equal to those of another. Read more

Determines if the elements of this Stream are lexicographically greater than those of another. Read more

Determines if the elements of this Stream are lexicographically less or equal to those of another. Read more

Determines if the elements of this Stream are lexicographically less than those of another. Read more

A convenience for calling [Stream::poll_next()] on !Unpin types.

Retrieves the next item in the stream. Read more

Retrieves the next item in the stream. Read more

Counts the number of items in the stream. Read more

Maps items of the stream to new values using a closure. Read more

Maps items to streams and then concatenates them. Read more

Concatenates inner streams. Read more

Maps items of the stream to new values using an async closure. Read more

Keeps items of the stream for which predicate returns true. Read more

Filters and maps items of the stream using a closure. Read more

Takes only the first n items of the stream. Read more

Takes items while predicate returns true. Read more

Skips the first n items of the stream. Read more

Skips items while predicate returns true. Read more

Yields every stepth item. Read more

Appends another stream to the end of this one. Read more

Clones all items. Read more

Copies all items. Read more

Collects all items in the stream into a collection. Read more

Collects all items in the fallible stream into a collection. Read more

Partitions items into those for which predicate is true and those for which it is false, and then collects them into two collections. Read more

Accumulates a computation over the stream. Read more

Accumulates a fallible computation over the stream. Read more

Maps items of the stream to new values using a state value and a closure. Read more

Fuses the stream so that it stops yielding items after the first None. Read more

Repeats the stream from beginning to end, forever. Read more

Enumerates items, mapping them to (index, item). Read more

Calls a closure on each item and passes it on. Read more

Gets the nth item of the stream. Read more

Returns the last item in the stream. Read more

Finds the first item of the stream for which predicate returns true. Read more

Applies a closure to items in the stream and returns the first Some result. Read more

Finds the index of the first item of the stream for which predicate returns true. Read more

Tests if predicate returns true for all items in the stream. Read more

Tests if predicate returns true for any item in the stream. Read more

Calls a closure on each item of the stream. Read more

Calls a fallible closure on each item of the stream, stopping on first error. Read more

Zips up two streams into a single stream of pairs. Read more

Collects a stream of pairs into a pair of collections. Read more

Merges with other stream, preferring items from self whenever both streams are ready. Read more

Merges with other stream, with no preference for either stream when both are ready. Read more

Boxes the stream and changes its type to dyn Stream + Send + 'a. Read more

Boxes the stream and changes its type to dyn Stream + 'a. Read more

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

The type of successful values yielded by this future

The type of failures yielded by this future

Poll this TryStream as if it were a Stream. Read more

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

Do something with the success value of this stream, afterwards passing it on. Read more

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

Wraps a [TryStream] into a type that implements Stream Read more

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

Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more

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

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

Attempt to transform a stream into a collection, returning a future representing the result of that computation. Read more

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

Attempt to filter the values produced by this stream according to the provided asynchronous closure. Read more

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

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

Attempt to concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more

Attempt to execute several futures from a stream concurrently (unordered). Read more

Attempt to execute several futures from a stream concurrently. Read more

A convenience method for calling [TryStream::try_poll_next] on Unpin stream types. Read more

Adapter that converts this stream into an AsyncRead. Read more

Writes some bytes into the byte stream. Read more

Flushes the stream to ensure that all buffered contents reach their destination. Read more

Like write, except that it writes from a slice of buffers. Read more

Writes an entire buffer into the byte stream. Read more

Writes a formatted string into this writer, returning any error encountered. Read more