OrderWAL

A generic-purpose, atomic, ordered, zero-copy read, zero-cost (in-place) write, Write-Ahead Log implementation for Rust. [

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English | [简体中文][zh-cn-url]

Introduction

orderwal is generic-purpose, atomic, ordered, zero-copy read, zero-cost (in-place) write, concurrent-safe, pre-allocate style (memory map) write-ahead-log for developing databases.

orderwal also supports generic structured key and value types, which is not limited to just bytes like other implementations.

Installation

Default (with on-disk support)
```
[dependencies]
orderwal = "0.5"
```

std only (without on-disk support)

[dependencies]
orderwal = { version = "0.5", default-features = false, features = ["std"] }

no-std (alloc required)

[dependencies]
orderwal = { version = "0.5", default-features = false, features = ["alloc"] }

Example

See examples for more information.

Related projects

aol: Yet another generic purpose, append-only write-ahead log implementation based on std::fs::File.
skl: A lock-free, ARNEA based skiplist implementation, which supports in-memory and on-disk, suitable for frozen durable data file or memtable for LSM database.
valog: A lock-free, generic, lightweight value log for WiscKey or Bitcask architecture databases.
dtlog: A log for tracking discard stats of multi-files databases.

License

orderwal is under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE-APACHE, LICENSE-MIT for details.

al8n / orderwal