@techmely/utils/mutexLock.js

Collection of helpful JavaScript / TypeScript utils

/*!
 * @techmely/utils
 * Copyright(c) 2021-2024 Techmely <techmely.creation@gmail.com>
 * MIT Licensed
 */

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/mutexLock.ts
var mutexLock_exports = {};
__export(mutexLock_exports, {
  MutexLock: () => MutexLock
});
module.exports = __toCommonJS(mutexLock_exports);
var MutexLock = class {
  #mutex = Promise.resolve();
  lock() {
    let begin = () => {
    };
    this.#mutex = this.#mutex.then(() => new Promise(begin));
    return new Promise((res) => {
      begin = res;
    });
  }
  async dispatch(fn) {
    const unlock = await this.lock();
    try {
      return await Promise.resolve(fn());
    } catch (error) {
      throw new Error("Dispatch failed!");
    } finally {
      unlock();
    }
  }
};
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  MutexLock
});