Crate lockmap

A thread-safe hashmap implementation providing per-key level locking and atomic operations.

Overview

lockmap provides a concurrent hashmap implementation that allows fine-grained locking at the key level. It uses internal sharding for better performance under high concurrency.

Features

• Thread-safe access with per-key locking
• Entry API for exclusive access to values
• Efficient concurrent operations through sharding
• Safe atomic updates

Examples

use lockmap::LockMap;

let map = LockMap::<String, u32>::new();

// Basic operations
map.insert("key1".into(), 42);
assert_eq!(map.get("key1"), Some(42));

// Entry API for exclusive access
{
    let mut entry = map.entry("key2".into());
    entry.get_mut().replace(123);
}

// Remove a value
assert_eq!(map.remove("key1"), Some(42));
assert_eq!(map.get("key1"), None);

Structs

EntryByRef

An RAII guard providing exclusive access to a key-value pair in the LockMap.

EntryByVal

An RAII guard providing exclusive access to a key-value pair in the LockMap.

LockMap

A thread-safe hashmap that supports locking entries at the key level.