Method makeSyncRequest

lib/internal/modules/esm/hooks.js:622–648

* Invoke a remote method synchronously. * @param {string} method Method to invoke * @param {any[]} [transferList] Objects in `args` to be transferred * @param {any[]} args Arguments to pass to `method` * @returns {any}

(method, transferList, ...args)

   * @returns {any}
   */
  makeSyncRequest(method, transferList, ...args) {
    this.waitForWorker();

    // Pass work to the worker.
    debug('post sync message to worker', { method, args, transferList });
    this.#worker.postMessage({ __proto__: null, method, args }, transferList);

    let response;
    do {
      debug('wait for sync response from worker', { method, args });
      // Sleep until worker responds.
      AtomicsWait(this.#lock, WORKER_TO_MAIN_THREAD_NOTIFICATION, this.#workerNotificationLastId);
      this.#workerNotificationLastId = AtomicsLoad(this.#lock, WORKER_TO_MAIN_THREAD_NOTIFICATION);

      response = this.#worker.receiveMessageSync();
      debug('got sync message from worker', { method, args, response });
    } while (response == null);

    if (response.message.status === 'never-settle') {
      const error = new ERR_ASYNC_LOADER_REQUEST_NEVER_SETTLED();
      error.details = { method, args };
      throw error;
    } else if (response.message.status === 'exit') {
      process.exit(response.message.body);
    }
    return this.#unwrapMessage(response);
  }

  #unwrapMessage(response) {
    if (response.message.status === 'never-settle') {