mirror/freebsd-ports
1
0
Fork 0
mirror of https://git.FreeBSD.org/ports.git synced 2024-11-19 00:13:33 +00:00
Code Issues Releases Activity

Update pkg-descr and WWW

Browse Source
This commit is contained in:
Sunpoet Po-Chuan Hsieh 2018-08-22 21:45:59 +00:00
parent 42465b2b48
commit 5d7ffd0580
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=477841
1 changed files with 16 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
converters/py-zfec/pkg-descr
View File

@ -1,10 +1,18 @@
A fast erasure codec which can be used with the command-line, C,
Python, or Haskell.
The zfec package implements an "erasure code", or "forward error correction
code".
Fast, portable, programmable erasure coding a.k.a. "forward error
correction": the generation of redundant blocks of information such
that if some blocks are lost then the original data can be recovered
from the remaining blocks. The zfec package includes command-line
tools, C API, Python API, and Haskell API.
The most widely known example of an erasure code is the RAID-5 algorithm which
makes it so that in the event of the loss of any one hard drive, the stored data
can be completely recovered. The algorithm in the zfec package has a similar
effect, but instead of recovering from the loss of only a single element, it can
be parameterized to choose in advance the number of elements whose loss it can
tolerate.
WWW: https://pypi.org/project/zfec/
This package is largely based on the old "fec" library by Luigi Rizzo et al.,
which is a mature and optimized implementation of erasure coding. The zfec
package makes several changes from the original "fec" package, including
addition of the Python API, refactoring of the C API to support zero-copy
operation, a few clean-ups and optimizations of the core code itself, and the
addition of a command-line tool named "zfec".
WWW: https://github.com/tahoe-lafs/zfec