Struct futures::io::Empty

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#[must_use = "readers do nothing unless polled"]pub struct Empty { /* fields omitted */ }

[−] Expand description

Reader for the empty() function.

Trait Implementations

impl AsyncBufRead for Empty[+]

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fn poll_fill_buf(
    self: Pin<&mut Empty>,
    &mut Context
) -> Poll<Result<&[u8], Error>>[−]

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 Empty>, 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[+]

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

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, Error>>[−]

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

impl Debug for Empty[+]

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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>[−]

Formats the value using the given formatter.