Struct ReadTrackingReader

pub struct ReadTrackingReader<'a, R: Read> {
    pub have_read: bool,
    /* private fields */
}

A Read implementation which tracks whether any bytes have been read at all. This allows us to distinguish between “EOF reached before we started” and “EOF reached mid-read”.

This is not exported to bindings users as manual TLV building is not currently supported in bindings

Fields

have_read: bool

Returns whether we have read from this reader or not yet.

Implementations

impl<'a, R: Read> ReadTrackingReader<'a, R>

pub fn new(read: &'a mut R) -> Self

Returns a new ReadTrackingReader.

Trait Implementations

impl<'a, R: Read> Read for ReadTrackingReader<'a, R>

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

Reads bytes from source into buf.

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

Reads bytes from source until buf is full.

fn take(&mut self, limit: u64) -> Take<'_, Self>

Creates an adapter which will read at most limit bytes.

fn read_to_limit( &mut self, buf: &mut Vec<u8>, limit: u64, ) -> Result<usize, Error>

Attempts to read up to limit bytes from the reader, allocating space in buf as needed.