Struct lzzzz::lz4f::ReadDecompressor

pub struct ReadDecompressor<'a, R: Read> { /* fields omitted */ }

The Read-based streaming decompressor.

Example

use lzzzz::lz4f::ReadDecompressor;
use std::{fs::File, io::prelude::*};

let mut f = File::open("foo.lz4")?;
let mut r = ReadDecompressor::new(&mut f)?;

let mut buf = Vec::new();
r.read_to_end(&mut buf)?;

Implementations

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

pub fn new(reader: R) -> Result<Self>

Creates a new ReadDecompressor<R>.

pub fn set_dict<D>(&mut self, dict: D) where
    D: Into<Cow<'a, [u8]>>, 

Sets the dictionary.

pub fn read_frame_info(&mut self) -> Result<FrameInfo>

Reads the frame header and returns FrameInfo.

Calling this function before any Read operations does not consume the frame body.

Trait Implementations

impl<R: Read, '_> Read for ReadDecompressor<'_, R>

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.

unsafe fn initializer(&self) -> Initializer

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

Determines if this Reader can work with buffers of uninitialized memory.

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 by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Read.

fn bytes(self) -> Bytes<Self>

Transforms this Read instance to an [Iterator] over its bytes.

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

Creates an adaptor which will chain this stream with another.

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

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