Struct futures_util::io::Chain

#[must_use = "readers do nothing unless polled"]
pub struct Chain<T, U> { /* fields omitted */ }

Reader for the chain method.

Implementations

impl<T, U> Chain<T, U> where
    T: AsyncRead,
    U: AsyncRead, 

pub fn get_ref(&self) -> (&T, &U)

Gets references to the underlying readers in this Chain.

pub fn get_mut(&mut self) -> (&mut T, &mut U)

Gets mutable references to the underlying readers in this Chain.

Care should be taken to avoid modifying the internal I/O state of the underlying readers as doing so may corrupt the internal state of this Chain.

pub fn get_pin_mut(self: Pin<&mut Self>) -> (Pin<&mut T>, Pin<&mut U>)

Gets pinned mutable references to the underlying readers in this Chain.

Care should be taken to avoid modifying the internal I/O state of the underlying readers as doing so may corrupt the internal state of this Chain.

pub fn into_inner(self) -> (T, U)

Consumes the Chain, returning the wrapped readers.

Trait Implementations

impl<T, U> AsyncBufRead for Chain<T, U> where
    T: AsyncBufRead,
    U: AsyncBufRead, 

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.

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.

impl<T, U> AsyncRead for Chain<T, U> where
    T: AsyncRead,
    U: AsyncRead, 

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

Attempt to read from the AsyncRead into buf.

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.

impl<T, U> Debug for Chain<T, U> where
    T: Debug,
    U: Debug, 

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

Formats the value using the given formatter.

impl<'__pin, T, U> Unpin for Chain<T, U> where
    __Origin<'__pin, T, U>: Unpin,