Expand description
A Write Ahead Log (WAL) solution for concurrent environments
§How?
This library provides high performance by using an in-memory buffer and append-only logs. The logs are stored in multiple files, and older files are deleted to save space.
§Usage
use serde::{Deserialize, Serialize};
use walcraft::Wal;
// Log to write
#[derive(Serialize, Deserialize, Debug)]
struct Log {
id: usize,
value: f64
}
// create an instance of WAL
let wal = Wal::new("/tmp/logz", Some(2000));
// recovery: Option A
let all_logs = wal.read().unwrap().into_iter().collect::<Vec<Log> > ();
// recovery: Option B
for log in wal.read().unwrap() {
// do something with logs
dbg!(log);
}
// start writing
wal.write(Log{id: 1, value: 3.14});
wal.write(Log{id: 2, value: 4.20});
// Flush to disk early/manually, before the buffer is filled
wal.flush();Structs§
- Wal
- WalBuilder
- Build Wal with custom configuration
Enums§
- Size
- Represents size of data on KBs, MBs or GBs, such as: