Struct futures_lite::io::Chain

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pub struct Chain<R1, R2> { /* private fields */ }
Expand description

Reader for the AsyncReadExt::chain() method.

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impl<R1, R2> Chain<R1, R2>

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pub fn get_ref(&self) -> (&R1, &R2)

Gets references to the underlying readers.

Examples
use futures_lite::io::{AsyncReadExt, Cursor};

let r1 = Cursor::new(b"hello");
let r2 = Cursor::new(b"world");

let reader = r1.chain(r2);
let (r1, r2) = reader.get_ref();
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pub fn get_mut(&mut self) -> (&mut R1, &mut R2)

Gets mutable references to the underlying readers.

Examples
use futures_lite::io::{AsyncReadExt, Cursor};

let r1 = Cursor::new(b"hello");
let r2 = Cursor::new(b"world");

let mut reader = r1.chain(r2);
let (r1, r2) = reader.get_mut();
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pub fn into_inner(self) -> (R1, R2)

Unwraps the adapter, returning the underlying readers.

Examples
use futures_lite::io::{AsyncReadExt, Cursor};

let r1 = Cursor::new(b"hello");
let r2 = Cursor::new(b"world");

let reader = r1.chain(r2);
let (r1, r2) = reader.into_inner();

Trait Implementations§

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impl<R1: AsyncBufRead, R2: AsyncBufRead> AsyncBufRead for Chain<R1, R2>

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fn poll_fill_buf( self: Pin<&mut Self>, cx: &mut Context<'_> ) -> Poll<Result<&[u8]>>

Attempt to return the contents of the internal buffer, filling it with more data from the inner reader if it is empty. Read more
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fn consume(self: Pin<&mut Self>, amt: usize)

Tells this buffer that amt bytes have been consumed from the buffer, so they should no longer be returned in calls to poll_read. Read more
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impl<R1: AsyncRead, R2: AsyncRead> AsyncRead for Chain<R1, R2>

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fn poll_read( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &mut [u8] ) -> Poll<Result<usize>>

Attempt to read from the AsyncRead into buf. Read more
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fn poll_read_vectored( self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &mut [IoSliceMut<'_>] ) -> Poll<Result<usize>>

Attempt to read from the AsyncRead into bufs using vectored IO operations. Read more
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impl<R1: Debug, R2: Debug> Debug for Chain<R1, R2>

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

Formats the value using the given formatter. Read more
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impl<'__pin, R1, R2> Unpin for Chain<R1, R2>where __Origin<'__pin, R1, R2>: Unpin,

Auto Trait Implementations§

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impl<R1, R2> RefUnwindSafe for Chain<R1, R2>where R1: RefUnwindSafe, R2: RefUnwindSafe,

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impl<R1, R2> Send for Chain<R1, R2>where R1: Send, R2: Send,

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impl<R1, R2> Sync for Chain<R1, R2>where R1: Sync, R2: Sync,

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impl<R1, R2> UnwindSafe for Chain<R1, R2>where R1: UnwindSafe, R2: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<R> AsyncBufReadExt for Rwhere R: AsyncBufRead + ?Sized,

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fn fill_buf(&mut self) -> FillBuf<'_, Self> where Self: Unpin,

Returns the contents of the internal buffer, filling it with more data if empty. Read more
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fn consume(&mut self, amt: usize)where Self: Unpin,

Consumes amt buffered bytes. Read more
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fn read_until<'a>( &'a mut self, byte: u8, buf: &'a mut Vec<u8> ) -> ReadUntilFuture<'_, Self> where Self: Unpin,

Reads all bytes and appends them into buf until the delimiter byte or EOF is found. Read more
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fn read_line<'a>(&'a mut self, buf: &'a mut String) -> ReadLineFuture<'_, Self> where Self: Unpin,

Reads all bytes and appends them into buf until a newline (the 0xA byte) or EOF is found. Read more
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fn lines(self) -> Lines<Self>where Self: Unpin + Sized,

Returns a stream over the lines of this byte stream. Read more
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fn split(self, byte: u8) -> Split<Self>where Self: Sized,

Returns a stream over the contents of this reader split on the specified byte. Read more
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impl<R> AsyncReadExt for Rwhere R: AsyncRead + ?Sized,

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fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> ReadFuture<'a, Self> where Self: Unpin,

Reads some bytes from the byte stream. Read more
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fn read_vectored<'a>( &'a mut self, bufs: &'a mut [IoSliceMut<'a>] ) -> ReadVectoredFuture<'a, Self> where Self: Unpin,

Like read(), except it reads into a slice of buffers. Read more
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fn read_to_end<'a>( &'a mut self, buf: &'a mut Vec<u8> ) -> ReadToEndFuture<'a, Self> where Self: Unpin,

Reads the entire contents and appends them to a Vec. Read more
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fn read_to_string<'a>( &'a mut self, buf: &'a mut String ) -> ReadToStringFuture<'a, Self> where Self: Unpin,

Reads the entire contents and appends them to a String. Read more
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fn read_exact<'a>(&'a mut self, buf: &'a mut [u8]) -> ReadExactFuture<'a, Self> where Self: Unpin,

Reads the exact number of bytes required to fill buf. Read more
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fn take(self, limit: u64) -> Take<Self>where Self: Sized,

Creates an adapter which will read at most limit bytes from it. Read more
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fn bytes(self) -> Bytes<Self>where Self: Sized,

Converts this AsyncRead into a Stream of bytes. Read more
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fn chain<R: AsyncRead>(self, next: R) -> Chain<Self, R>where Self: Sized,

Creates an adapter which will chain this stream with another. Read more
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fn boxed_reader<'a>(self) -> Pin<Box<dyn AsyncRead + Send + 'a>>where Self: Sized + Send + 'a,

Boxes the reader and changes its type to dyn AsyncRead + Send + 'a. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.