Repo: https://github.com/al8n/skipdb

An embedded, in-memory, zero-copy, MVCC, almost lock-free and serializable snapshot isolation database engine.

Features

• Atomicity, Consistency, Isolation, MVCC, serializable snapshot isolation, concurrent safe and almost lock-free.
• No extra allocation and copy, there is no Arc wrapper for both key and value stored in the database, which means that users provide K and V, and database store K and V directly.
• Zero-copy and in-place compaction, which means there is no copy, no extra allocation when compacting.
• Concurrent execution of transactions, providing serializable snapshot isolation, avoiding write skews.
• Both read transaction and write transaction are Send + Sync + 'static, which means you do not need to handle annoying lifetime problem anymore.
• Lock-free and concurrent safe read transaction: the read transaction is totally concurrent safe and can be shared in multiple threads, there is no lock in read transaction.
• BTreeMap like user friendly API and all iterators implement Iterator trait, which means users use Rust powerful conbinators when iterating over the database.
• Async version is runtime agnostic, tokio, async-std, smol, wasm-bindgen-futures and any other async runtime.
• 100% safe, sets [forbid(unsafe_code)].