Struct debian_packaging::io::ContentValidatingReader

pub struct ContentValidatingReader<R> { /* fields omitted */ }

An adapter for [AsyncRead] streams that validates source size and digest.

Validation only occurs once the expected source size bytes have been read.

If the reader consumes less than the expected number of bytes, no validation occurs and incorrect data could have been read. Therefore it is strongly recommended for readers to drain this reader. e.g. by using drain_reader().

Implementations

impl<R> ContentValidatingReader<R>

pub fn new(
    source: R,
    expected_size: u64,
    expected_digest: ContentDigest
) -> Self

Create a new instance bound to a source and having expected size and content digest.

Trait Implementations

impl<R> AsyncRead for ContentValidatingReader<R> where
    R: AsyncRead + Unpin, 

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

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<'pin, R> Unpin for ContentValidatingReader<R> where
    __ContentValidatingReader<'pin, R>: Unpin,