Method waitForWorker

lib/internal/modules/esm/hooks.js:540–558

()

  }

  waitForWorker() {
    if (!this.#isReady) {
      const { kIsOnline } = require('internal/worker');
      if (!this.#worker[kIsOnline]) {
        debug('wait for signal from worker');
        AtomicsWait(this.#lock, WORKER_TO_MAIN_THREAD_NOTIFICATION, 0);
        const response = this.#worker.receiveMessageSync();
        if (response == null) { return; }
        if (response.message.status === 'exit') {
          process.exit(response.message.body);
        }

        // ! This line catches initialization errors in the worker thread.
        this.#unwrapMessage(response);
      }

      this.#isReady = true;
    }
  }

  /**
   * Invoke a remote method asynchronously.