Struct BdxReader 

pub struct BdxReader<'a> { /* private fields */ }

A reader over a BDX transfer - the Receiver side.

Obtained from Exchange::download on the initiating side, or from BdxUploadResponder::reply on the responding side. read drives the protocol as needed and copies the next bytes of the transfer into the caller’s buffer, returning 0 at the end of the transfer. It also implements embedded_io_async::Read (delegating to the inherent method).

Implementations

impl<'a> BdxReader<'a>

pub fn len(&self) -> Option<u64>

The total length of the transfer in bytes, if the sender committed to a definite length during negotiation (None for an indefinite transfer).

pub async fn read(&mut self, buf: &mut [u8]) -> Result<usize, Error>

Read the next bytes of the transfer into buf, returning the number of bytes read. Returns 0 once the whole transfer has been received.

This is also the embedded_io_async::Read implementation; the inherent method is kept so callers need not import the trait.

Trait Implementations

impl ErrorType for BdxReader<'_>

type Error = Error

Error type of all the IO operations on this type.

impl Read for BdxReader<'_>

async fn read( &mut self, buf: &mut [u8], ) -> Result<usize, <BdxReader<'_> as ErrorType>::Error>

Read some bytes from this source into the specified buffer, returning how many bytes were read.

async fn read_exact( &mut self, buf: &mut [u8], ) -> Result<(), ReadExactError<Self::Error>>

Read the exact number of bytes required to fill buf.