mirror of
https://github.com/rclone/rclone.git
synced 2024-12-02 05:14:55 +01:00
51 lines
2.0 KiB
Go
51 lines
2.0 KiB
Go
// The MIT License (MIT)
|
|
//
|
|
// Copyright (C) 2016-2017 Vivint, Inc.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in all
|
|
// copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
// SOFTWARE.
|
|
|
|
// Package infectious implements Reed-Solomon forward error correction [1]. It
|
|
// uses the Berlekamp-Welch [2] error correction algorithm to achieve the
|
|
// ability to actually correct errors.
|
|
//
|
|
// Caution: this package API leans toward providing the user more power and
|
|
// performance at the expense of having some really sharp edges! Read the
|
|
// documentation about memory lifecycles carefully!
|
|
//
|
|
// We wrote a blog post about how this library works!
|
|
// https://innovation.vivint.com/introduction-to-reed-solomon-bc264d0794f8
|
|
//
|
|
// [1] https://en.wikipedia.org/wiki/Reed%E2%80%93Solomon_error_correction
|
|
// [2] https://en.wikipedia.org/wiki/Berlekamp%E2%80%93Welch_algorithm
|
|
package infectious
|
|
|
|
import (
|
|
"errors"
|
|
|
|
"golang.org/x/sys/cpu"
|
|
)
|
|
|
|
var hasAVX2 = cpu.X86.HasAVX2
|
|
var hasSSSE3 = cpu.X86.HasSSSE3
|
|
|
|
var (
|
|
NotEnoughShares = errors.New("not enough shares")
|
|
TooManyErrors = errors.New("too many errors to reconstruct")
|
|
)
|