Crate mmdb 

MMDB — Modern Memory-Mapped Database

A high-performance LSM-Tree storage engine in pure Rust.

Re-exports

pub use db::DB;

pub use db::Snapshot;

pub use db::pool_return;

pub use error::Error;

pub use error::Result;

pub use iterator::BidiIterator;

pub use iterator::DBIterator;

pub use iterator::PooledIterator;

pub use options::CompactionFilter;

pub use options::CompactionFilterDecision;

pub use options::DbOptions;

pub use options::ReadOptions;

pub use options::WriteOptions;

pub use sst::format::CompressionType;

pub use types::SequenceNumber;

pub use types::WriteBatch;

pub use types::WriteBatchWithIndex;

Modules

cache

Caching layer: block cache and table cache.

compaction

Compaction: background process to merge SST files and reduce read amplification.

db

Core DB implementation with WAL, MemTable, SST, MANIFEST, and Iterator.

error

Error types for MMDB.

iterator

Iterator implementations for reading data across multiple sources.

manifest

MANIFEST: tracks the set of SST files that make up each “Version” of the database.

memtable

MemTable: in-memory sorted key-value store backed by a lock-free skiplist.

options

Configuration options for MMDB.

rate_limiter

Token-bucket rate limiter for controlling compaction write throughput.

sst

Sorted String Table (SST) implementation.

stats

Database properties and statistics.

types

Core data types: InternalKey, ValueType, SequenceNumber.

wal

Write-Ahead Log (WAL) for crash recovery.