fossabot / lzzzz Goto Github PK

use lzzzz::{lz4, lz4_hc, lz4f};

let data = b"The quick brown fox jumps over the lazy dog.";

// LZ4 compression
let mut comp = Vec::new();
lz4::compress_to_vec(data, &mut comp, lz4::ACC_LEVEL_DEFAULT)?;

// LZ4_HC compression
let mut comp = Vec::new();
lz4_hc::compress_to_vec(data, &mut comp, lz4_hc::CLEVEL_DEFAULT)?;

// LZ4/LZ4_HC decompression
let mut decomp = vec![0; data.len()];
lz4::decompress(&comp, &mut decomp)?;

// LZ4F compression
let prefs = lz4f::Preferences::default();
let mut comp = Vec::new();
lz4f::compress_to_vec(data, &mut comp, &prefs)?;

// LZ4F decompression
let mut decomp = Vec::new();
lz4f::decompress_to_vec(&comp, &mut decomp)?;

use lzzzz::{lz4, lz4_hc};

let data = b"The quick brown fox jumps over the lazy dog.";

// LZ4 compression
let mut comp = lz4::Compressor::new()?;
let mut buf = Vec::new();
comp.next_to_vec(data, &mut buf, lz4::ACC_LEVEL_DEFAULT)?;

// LZ4_HC compression
let mut comp = lz4_hc::Compressor::new()?;
let mut buf = Vec::new();
comp.next_to_vec(data, &mut buf)?;

// LZ4/LZ4_HC decompression
let mut decomp = lz4::Decompressor::new()?;
let result = decomp.next(&data, data.len())?;

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

// LZ4F Write-based compression
let mut f = File::create("foo.lz4")?;
let mut w = WriteCompressor::new(&mut f, Preferences::default())?;
w.write_all(b"Hello world!")?;

// LZ4F Read-based decompression
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)?;