Struct DevFuseReader

struct DevFuseReader {
    reader: BufReader<File>,
}

Fields

reader: BufReader<File>

Implementations

impl DevFuseReader

pub fn new(reader: BufReader<File>) -> Self

fn drain(&mut self)

Trait Implementations

impl Read for DevFuseReader

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

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

fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>

Like read, except that it reads into a slice of buffers.

fn is_read_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Reader has an efficient read_vectored implementation.

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

Reads all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>

Reads all bytes until EOF in this source, appending them to buf.

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

Reads the exact number of bytes required to fill buf.

fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)

Pull some bytes from this source into the specified buffer.

fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)

Reads the exact number of bytes required to fill cursor.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adaptor for this instance of Read.

fn bytes(self) -> Bytes<Self>

where Self: Sized,

Transforms this Read instance to an Iterator over its bytes.

fn chain<R>(self, next: R) -> Chain<Self, R>

where R: Read, Self: Sized,

Creates an adapter which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

where Self: Sized,

Creates an adapter which will read at most limit bytes from it.

impl Reader for DevFuseReader

fn read_struct<T: IntoBytes + FromBytes>(&mut self) -> Result<T>

impl ZeroCopyReader for DevFuseReader

fn read_to(&mut self, f: &mut File, count: usize, off: u64) -> Result<usize>

Copies at most count bytes from self directly into f at offset off without storing it in any intermediate buffers. If the return value is Ok(n) then it must be guaranteed that 0 <= n <= count. If n is 0, then it can indicate one of 3 possibilities:

fn read_exact_to(&mut self, f: &mut File, count: usize, off: u64) -> Result<()>

Copies exactly count bytes of data from self into f at offset off. off + count must be less than u64::MAX.

fn copy_to_end(&mut self, f: &mut File, off: u64) -> Result<usize>

Copies all remaining bytes from self into f at offset off. Equivalent to repeatedly calling read_to until it returns either Ok(0) or a non-ErrorKind::Interrupted error.