@xylabs/threads/dist/neutral/master/register.mjs.map

Web workers & worker threads as simple as a function call

{
  "version": 3,
  "sources": ["../../../src/master/implementation.node.ts", "../../../src/master/index-node.ts", "../../../src/master/register.ts"],
  "sourcesContent": ["/* eslint-disable @typescript-eslint/no-explicit-any */\n/* eslint-disable unicorn/text-encoding-identifier-case */\n\nimport { cpus } from 'node:os'\nimport path from 'node:path'\nimport { cwd } from 'node:process'\nimport { isMainThread, Worker as NativeWorker } from 'node:worker_threads'\n\nimport type {\n  ImplementationExport, ThreadsWorkerOptions, WorkerImplementation,\n// eslint-disable-next-line import-x/no-internal-modules\n} from '../types/master.ts'\n\n/** Default thread pool size based on the number of CPU cores. */\nexport const defaultPoolSize = cpus().length\n\nfunction resolveScriptPath(scriptPath: string, baseURL?: string | undefined) {\n  const makeAbsolute = (filePath: string) => {\n    return path.isAbsolute(filePath) ? filePath : path.join(baseURL ?? cwd(), filePath)\n  }\n\n  const absolutePath = makeAbsolute(scriptPath)\n  return absolutePath\n}\n\nfunction initWorkerThreadsWorker(): ImplementationExport {\n  let allWorkers: NativeWorker[] = []\n\n  class Worker extends NativeWorker {\n    private mappedEventListeners: WeakMap<EventListener, EventListener>\n\n    constructor(scriptPath: string, options?: ThreadsWorkerOptions & { fromSource: boolean }) {\n      const resolvedScriptPath = options?.fromSource ? null : resolveScriptPath(scriptPath, options?._baseURL)\n      if (resolvedScriptPath === null) {\n        // `options.fromSource` is true\n        const sourceCode = scriptPath\n        super(sourceCode, { ...options, eval: true })\n      } else {\n        super(resolvedScriptPath, options)\n      }\n\n      this.mappedEventListeners = new WeakMap()\n      allWorkers.push(this)\n    }\n\n    addEventListener(eventName: string, rawListener: EventListener) {\n      const listener = (message: any) => {\n        rawListener({ data: message } as any)\n      }\n      this.mappedEventListeners.set(rawListener, listener)\n      this.on(eventName, listener)\n    }\n\n    removeEventListener(eventName: string, rawListener: EventListener) {\n      const listener = this.mappedEventListeners.get(rawListener) || rawListener\n      this.off(eventName, listener)\n    }\n  }\n\n  const terminateWorkersAndMaster = () => {\n    // we should terminate all workers and then gracefully shutdown self process\n    Promise.all(allWorkers.map(worker => worker.terminate())).then(\n      () => process.exit(0),\n      () => process.exit(1),\n    )\n    allWorkers = []\n  }\n\n  // Take care to not leave orphaned processes behind. See #147.\n  process.on('SIGINT', () => terminateWorkersAndMaster())\n  process.on('SIGTERM', () => terminateWorkersAndMaster())\n\n  class BlobWorker extends Worker {\n    constructor(blob: Uint8Array, options?: ThreadsWorkerOptions) {\n      super(Buffer.from(blob).toString('utf-8'), { ...options, fromSource: true })\n    }\n\n    static fromText(source: string, options?: ThreadsWorkerOptions): WorkerImplementation {\n      return new Worker(source, { ...options, fromSource: true }) as any\n    }\n  }\n\n  return {\n    blob: BlobWorker as any,\n    default: Worker as any,\n  }\n}\n\nlet implementation: ImplementationExport\n\n/**\n * Get the Node.js-specific worker implementation using `worker_threads`, lazily initializing it on first call.\n * @returns The platform-specific worker implementation export.\n */\nexport function getWorkerImplementation(): ImplementationExport {\n  if (implementation === undefined) {\n    implementation = initWorkerThreadsWorker()\n  }\n  return implementation\n}\n\n/**\n * Check whether the current code is running inside a Node.js worker thread.\n * @returns True if running in a worker thread (not the main thread), false otherwise.\n */\nexport function isWorkerRuntime() {\n  return !isMainThread\n}\n", "/* eslint-disable import-x/no-internal-modules */\nimport type { BlobWorker as BlobWorkerClass, Worker as WorkerType } from '../types/master.ts'\nimport * as NodeImplementation from './implementation.node.ts'\n\nexport type { FunctionThread, ModuleThread } from '../types/master.ts'\nexport { Pool } from './pool-browser.ts'\nexport { spawn } from './spawn.ts'\nexport { Thread } from './thread.ts'\n\nexport type BlobWorker = typeof BlobWorkerClass\nexport type Worker = WorkerType\n\n/** Separate class to spawn workers from source code blobs or strings. */\nexport const BlobWorker = NodeImplementation.getWorkerImplementation().blob\n\n/** Worker implementation. Either web worker or a node.js Worker class. */\nexport const Worker = NodeImplementation.getWorkerImplementation().default\n\nexport { isWorkerRuntime } from './implementation.node.ts'\n", "/* eslint-disable @typescript-eslint/no-explicit-any */\n\nimport { Worker as WorkerImplementation } from './index-node.ts'\n\ndeclare const window: any\n\nif (typeof globalThis !== 'undefined') {\n  ;(globalThis as any).Worker = WorkerImplementation\n} else if (window !== undefined) {\n  ;(window as any).Worker = WorkerImplementation\n}\n"],
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  "names": ["Worker", "BlobWorker"]
}