Crate xsnappy

This is a Snappy compression algorithm library written in Rust. It is ported from Go implementation with similar interface.

Provide basic interfaces:

• max_encode_len(src_len): Get the max length of encoded data.
• encode(dst, src): Encode src to dst.
• decode_len(src): Get the exact length of decoded data.
• decode_len(dst, src): Decode src to dst.

Examples:

Compress:

use xsnappy::{max_encode_len, encode};

let src = "Jingle bell, jingle bell, jingle bell rock \
                    Jingle bells swing and jingle bells ring".as_bytes();
let mut dst = vec![0; max_encode_len(src.len())];
let size = encode(&mut dst, src);
dst.resize(size, 0);
println!("{:?}", dst);

Decompress:

use xsnappy::{decode_len, decode};
use std::str::from_utf8;

let src = vec![83, 52, 74, 105, 110, 103, 108, 101, 32, 98, 101, 108, 108, 44, 32, 106, 90,
               13, 0, 20, 32, 114, 111, 99, 107, 32, 29, 43, 40, 115, 32, 115, 119, 105, 110,
               103, 32, 97, 110, 100, 46, 53, 0, 20, 115, 32, 114, 105, 110, 103];

let dec_len = match decode_len(&src) {
    Ok(len) => len,
    Err(err) => panic!("{}", err)
};

let mut dst = vec![0; dec_len];
match decode(&mut dst, &src) {
    Ok(len) => {},
    Err(err) => panic!("{}", err)
}
println!("{}", from_utf8(&dst).unwrap());

Modules

error

Functions

decode	Decode src to dst. The dst must be initialized with a certain length. Return the exact length of decoded data.
decode_len	Return the exact length of decoded data.
encode	Encode src to dst. The dst must be initialized with a certain length. Return the exact length of encoded data.
max_encode_len	Return the max length of encoded data