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