Struct tokio::io::Empty

pub struct Empty { /* fields omitted */ }

This is supported on feature="io-util" only.

This struct is generally created by calling empty. Please see the documentation of empty() for more details.

This is an asynchronous version of std::io::empty.

Trait Implementations

impl AsyncBufRead for Empty

fn poll_fill_buf(self: Pin<&mut Self>, _: &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>, _: 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 AsyncRead for Empty

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

Attempt to read from the AsyncRead into buf.

unsafe fn prepare_uninitialized_buffer(
    &self,
    buf: &mut [MaybeUninit<u8>]
) -> bool

Prepares an uninitialized buffer to be safe to pass to read. Returns true if the supplied buffer was zeroed out.

fn poll_read_buf<B: BufMut>(
    self: Pin<&mut Self>,
    cx: &mut Context,
    buf: &mut B
) -> Poll<Result<usize>> where
    Self: Sized, 

Pull some bytes from this source into the specified BufMut, returning how many bytes were read.

impl Debug for Empty

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

Formats the value using the given formatter.