Tiny Mutex

Lightweight and simple mutexes.

Features

• Zero dependencies. Small bundle size.
• Written in TypeScript.
• CommonJS & ESModules support.
• Thread-safe. Works with worker threads and multithreading libraries like Piscina.
• Simple to use. Modeled after Golang's sync.Mutex

Usage

import { createMutex, lock, unlock } from 'tiny-mutex'

// Create a mutex, usable in a cross-thread context
const mutex = createMutex();

async function doWorkflow(shared: Uint8Array) {
    // Wait until the mutex is unlocked, then lock it.
    await lock(mutex);

    // Modify a resource normally without worrying about
    // other threads modifying it at the same time.
    shared.set([1, 2, 3])

    // Unlock the mutex once finished with modifying the
    // resource, unblocking other agents.
    unlock(mutex);
}