PixieKV: A Simple Key-Value Store in Rust

PixieKV is a lightweight, no_std compatible key-value store written in Rust. It is designed to be a simple and efficient storage solution for embedded systems and other resource-constrained environments.

Features

• Set and get values
• Delete values
• Save and load from file
• No_std compatible
• Persistent storage using LittleFS
• Generic value types (supports any type that implements Serialize and Deserialize)
• Fixed-size storage with compile-time checks
• Check the database integrity by validating the hash of the data

Implementation

PixieKV is implemented using a heapless::FnvIndexMap as the underlying data structure. This allows for efficient lookups and inserts while maintaining a fixed-size storage that's suitable for embedded systems.

The key-value store is designed to be simple, efficient, and easy to use in no_std environments. It uses the LittleFS file system for persistent storage, allowing data to be saved and loaded from flash memory or other storage mediums.

Usage

use pixiekv::PixieKV;

let mut store = PixieKV::default();

store.insert("key", "value");

let value = store.get("key");

store.remove("key");

store.save_to_file("database.db");

let loaded_store = PixieKV::load_from_file("database.db");

Run tests

cargo test

Run examples

cargo run --example std_example

Run emulated tests

cargo run --target thumbv7m-none-eabi --release

License

MIT