5 releases
0.2.1 | Oct 31, 2024 |
---|---|
0.2.0 | Oct 25, 2024 |
0.1.3 | Oct 8, 2024 |
0.1.1 | Sep 29, 2024 |
0.1.0 | Sep 27, 2024 |
#134 in Database implementations
231 downloads per month
145KB
2.5K
SLoC
VaLog
Introduction
This crate is designed for databases based on the WiscKey architecture, which separates the storage of keys from values. Consequently, this crate focuses exclusively on managing values. Users are responsible for storing the ValuePointer
s returned by the write*
APIs.
Features
- Lock-Free and Concurrently Safe: Engineered for high-performance concurrent access without the use of locks.
- Generic Data Structure Support: Provides flexibility to accommodate a variety of data types.
- In-Place Writing: Guarantees no additional memory allocation during write operations.
- Zero-Copy Reads: Enables efficient reading without unnecessary data duplication.
- Three Mode Support:
Vec
: Usable in environments without the standard library (no_std
).- Anonymous Memory Mapping: Efficiently manages memory through an anonymous memory map.
- File-Backed Memory Map: Functions similarly to an in-memory arena but stores data persistently on disk.
This crate offers a robust solution for managing value storage in WiscKey-based databases, prioritizing both performance and efficiency.
Installation
-
Default
[dependencies] valog = "0.2"
-
no_std
full in-memory mode[dependencies] valog = { version = "0.2", default-features = false, features = ["alloc"] }
Example
Please see examples.
License
valog
is under the terms of both the MIT license and the
Apache License (Version 2.0).
See LICENSE-APACHE, LICENSE-MIT for details.
Copyright (c) 2024 Al Liu.
Dependencies
~3–11MB
~145K SLoC