"use strict"; var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); } return new (P || (P = Promise))(function (resolve, reject) { function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } } function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); } step((generator = generator.apply(thisArg, _arguments || [])).next()); }); }; Object.defineProperty(exports, "__esModule", { value: true }); function createPool(size) { let pendingPromises = []; const pool = { submit(task) { return __awaiter(this, void 0, void 0, function* () { while (pendingPromises.length >= pool.size) { yield Promise.race(pendingPromises).catch(() => undefined); } let resolve; let reject; const taskPromise = new Promise((taskResolve, taskReject) => { resolve = taskResolve; reject = taskReject; }); const donePromise = new Promise((doneResolve) => { task(() => { doneResolve(undefined); pendingPromises = pendingPromises.filter((pendingPromise) => pendingPromise !== donePromise); }) .then(resolve) .catch(reject); }); pendingPromises.push(donePromise); return taskPromise; }); }, size, get pending() { return pendingPromises.length; }, }; return pool; } exports.createPool = createPool;