liberasurecode
A Rust wrapper for openstack/liberasurecode.
Prerequisites to Build
This crate requires the following packages for building openstack/liberasurecode in the build script:
- C compiler (e.g.,
gcc) gitmakeautomakeautoconflibtool
For example, on Ubuntu, you can install those by executing the following command:
$ sudo apt install gcc git make automake autoconf libtoolExamples
Basic usage:
use liberasurecode::{ErasureCoder, Error};
let mut coder = ErasureCoder::new(4, 2)?;
let input = vec![0, 1, 2, 3];
// Encodes `input` to data and parity fragments
let fragments = coder.encode(&input)?;
// Decodes the original data from the fragments (or a part of those)
assert_eq!(Ok(&input), coder.decode(&fragments[0..]).as_ref());
assert_eq!(Ok(&input), coder.decode(&fragments[1..]).as_ref());
assert_eq!(Ok(&input), coder.decode(&fragments[2..]).as_ref());
assert_eq!(Err(Error::InsufficientFragments), coder.decode(&fragments[3..]));