13 releases
0.2.0 | Nov 6, 2021 |
---|---|
0.1.3 | Mar 6, 2021 |
0.1.2 | Jul 4, 2020 |
0.1.1 | Aug 29, 2019 |
0.0.1 | Nov 26, 2016 |
#717 in Data structures
118 downloads per month
Used in 3 crates
105KB
2.5K
SLoC
Commit Log
Sequential, disk-backed commit log library for Rust. The library can be used in various higher-level distributed abstractions on top of a distributed log such as Paxos, Chain Replication or Raft.
Usage
First, add this to your Cargo.toml
:
[dependencies]
commitlog = "0.1"
extern crate commitlog;
use commitlog::*;
fn main() {
// open a directory called 'log' for segment and index storage
let opts = LogOptions::new("log");
let mut log = CommitLog::new(opts).unwrap();
// append to the log
log.append("hello world").unwrap(); // offset 0
log.append("second message").unwrap(); // offset 1
// read the messages
let messages = log.read(0, ReadLimit::default()).unwrap();
for msg in messages.iter() {
println!("{} - {}", msg.offset(), String::from_utf8_lossy(msg.payload()));
}
// prints:
// 0 - hello world
// 1 - second message
}
Prior Art
Dependencies
~420–760KB
~10K SLoC