Struct ProgressWriter

struct ProgressWriter<W> {
    inner: W,
    written: usize,
    file_size: usize,
    last_progress: usize,
    context: Context,
}

Writer that emits progress events as bytes are written into it.

Fields

inner: W

Wrapped writer.

written: usize

Number of bytes successfully written into the internal writer.

file_size: usize

Total size of the backup .tar file expected to be written into the writer. Used to calculate the progress.

last_progress: usize

Last progress emitted to avoid emitting the same progress value twice.

context: Context

Context for emitting progress events.

Implementations

impl<W> ProgressWriter<W>

fn project<'pin>( self: Pin<&'pin mut Self>, ) -> __ProgressWriterProjection<'pin, W>

fn project_ref<'pin>( self: Pin<&'pin Self>, ) -> __ProgressWriterProjectionRef<'pin, W>

impl<W> ProgressWriter<W>

fn new(w: W, context: Context, file_size: u64) -> Self

Trait Implementations

impl<W> AsyncWrite for ProgressWriter<W>

where W: AsyncWrite,

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

Attempt to write bytes from buf into the object.

fn poll_flush( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<(), Error>>

Attempts to flush the object, ensuring that any buffered data reach their destination.

fn poll_shutdown( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<(), Error>>

Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down.

fn poll_write_vectored( self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &[IoSlice<'_>], ) -> Poll<Result<usize, Error>>

Like poll_write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

Determines if this writer has an efficient poll_write_vectored implementation.

impl<'pin, W> Unpin for ProgressWriter<W>

where PinnedFieldsOf<__ProgressWriter<'pin, W>>: Unpin,