Struct FuturesAsyncReader

pub struct FuturesAsyncReader {
    ctx: Arc<ReadContext>,
    stream: BufferStream,
    buf: Buffer,
    start: u64,
    end: u64,
    pos: u64,
}

FuturesAsyncReader is the adapter of [AsyncRead], [AsyncBufRead] and [AsyncSeek] generated by Reader::into_futures_async_read.

Users can use this adapter in cases where they need to use [AsyncRead] related trait. FuturesAsyncReader reuses the same concurrent and chunk settings from Reader.

FuturesAsyncReader also implements Unpin, Send and Sync

Fields

ctx: Arc<ReadContext>

stream: BufferStream

buf: Buffer

start: u64

end: u64

pos: u64

Trait Implementations

impl AsyncBufRead for FuturesAsyncReader

fn poll_fill_buf( self: Pin<&mut FuturesAsyncReader>, cx: &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 FuturesAsyncReader>, 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 AsyncRead for FuturesAsyncReader

TODO: implement vectored read.

fn poll_read( self: Pin<&mut FuturesAsyncReader>, cx: &mut Context<'_>, buf: &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 AsyncSeek for FuturesAsyncReader

fn poll_seek( self: Pin<&mut FuturesAsyncReader>, _: &mut Context<'_>, pos: SeekFrom, ) -> Poll<Result<u64, Error>>

Attempt to seek to an offset, in bytes, in a stream.

impl Sync for FuturesAsyncReader

Safety: FuturesAsyncReader only exposes &mut self to the outside world,