1.0.0 • Published 10 months ago
@esfx/async-mutex v1.0.0
@esfx/async-mutex
Provides AsyncMutex
, an async coordination primitive.
Overview
Installation
npm i @esfx/async-mutex
Usage
import { AsyncMutex } from "@esfx/async-mutex";
const m = new AsyncMutex();
let counter = 0;
async function worker() {
for (let i = 0; i < 3; i++) {
// get exclusive access to 'm', which protects 'counter'.
const lk = await m.lock();
try {
const current = counter;
await doSomethingElse();
// we still have exclusive access to 'm', which protects 'counter'.
counter = current + 1;
}
finally {
// release the lock
lk.unlock();
}
}
}
async function main() {
// start two workers that share a resource
await Promise.all([worker(), worker()]);
counter; // 6
}
API
You can read more about the API here.
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