Struct tokio::io::util::copy_buf::CopyBuf

struct CopyBuf<'a, R: ?Sized, W: ?Sized> {
    reader: &'a mut R,
    writer: &'a mut W,
    amt: u64,
}

A future that asynchronously copies the entire contents of a reader into a writer.

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

Fields

reader: &'a mut R

writer: &'a mut W

amt: u64

Trait Implementations

impl<'a, R: Debug + ?Sized, W: Debug + ?Sized> Debug for CopyBuf<'a, R, W>

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

Formats the value using the given formatter.

impl<R, W> Future for CopyBuf<'_, R, W>

where R: AsyncBufRead + Unpin + ?Sized, W: AsyncWrite + Unpin + ?Sized,

type Output = Result<u64, Error>

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>

Attempts to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.