@apiratorjs/locking/dist/src/mutex.js

A lightweight library providing both local and distributed locking primitives (mutexes, semaphores, and read-write locks) for managing concurrency in Node.js.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Mutex = void 0;
const semaphore_1 = require("./semaphore");
class Mutex {
    constructor() {
        this._semaphore = new semaphore_1.Semaphore(1);
    }
    async runExclusive(...args) {
        // @ts-ignore
        return this._semaphore.runExclusive(...args);
    }
    async acquire(params, acquireToken) {
        // Cast SemaphoreToken to MutexToken since we're implementing a mutex interface
        const releaser = await this._semaphore.acquire(params, acquireToken);
        const wrappedReleaser = {
            release: async () => releaser.release(),
            getToken: () => releaser.getToken()
        };
        return wrappedReleaser;
    }
    async cancel(errMessage) {
        return this._semaphore.cancelAll(errMessage ?? "Mutex cancelled");
    }
    async isLocked() {
        return this._semaphore.isLocked();
    }
    async waitForUnlock() {
        return await this._semaphore.waitForAnyUnlock();
    }
}
exports.Mutex = Mutex;
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