Struct ara::buf_reader_at::BufReaderAt

pub struct BufReaderAt<R> where
    R: ReadAt,  { /* fields omitted */ }

Page-based buffering over a ReadAt type.

Implementations

impl<R> BufReaderAt<R> where
    R: ReadAt, 

pub fn new(inner: R) -> Self

Builds a new instance with default options

pub fn with_opts(inner: R, opts: Opts) -> Self

pub fn stats(&self) -> Stats

Trait Implementations

impl<R> ReadAt for BufReaderAt<R> where
    R: ReadAt, 

fn read_at<'life0, 'life1, 'async_trait>(
    &'life0 self,
    offset: u64,
    buf: &'life1 mut [u8]
) -> Pin<Box<dyn Future<Output = Result<usize>> + 'async_trait>> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Read bytes from resource, starting at offset, into buf

fn len(&self) -> u64

Returns the length of the resource, in bytes

#[must_use]fn read_at_exact<'life0, 'life1, 'async_trait>(
    &'life0 self,
    offset: u64,
    buf: &'life1 mut [u8]
) -> Pin<Box<dyn Future<Output = Result<()>> + 'async_trait>> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Reads exactly buf, starting at offset

fn is_empty(&self) -> bool

Returns true if that resource is empty (has a length of 0)