Struct ruzstd::decoding::decodebuffer::DecodeBuffer

pub struct DecodeBuffer {
    pub dict_content: Vec<u8>,
    pub window_size: usize,
    pub hash: XxHash64,
    /* private fields */
}

Fields

dict_content: Vec<u8>

window_size: usize

hash: XxHash64

Implementations

impl DecodeBuffer

pub fn new(window_size: usize) -> DecodeBuffer

pub fn reset(&mut self, window_size: usize)

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn push(&mut self, data: &[u8])

pub fn repeat( &mut self, offset: usize, match_length: usize ) -> Result<(), DecodeBufferError>

pub fn can_drain_to_window_size(&self) -> Option<usize>

Check if and how many bytes can currently be drawn from the buffer

pub fn can_drain(&self) -> usize

pub fn drain_to_window_size(&mut self) -> Option<Vec<u8>>

Drain as much as possible while retaining enough so that decoding si still possible with the required window_size At best call only if can_drain_to_window_size reports a ‘high’ number of bytes to reduce allocations

pub fn drain_to_window_size_writer( &mut self, sink: impl Write ) -> Result<usize, Error>

pub fn drain(&mut self) -> Vec<u8>

drain the buffer completely

pub fn drain_to_writer(&mut self, sink: impl Write) -> Result<usize, Error>

pub fn read_all(&mut self, target: &mut [u8]) -> Result<usize, Error>

Trait Implementations

impl Read for DecodeBuffer

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

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>

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

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

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

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

Read 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)

Read 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.