Function prepareExecution

lib/internal/process/pre_execution.js:105–182

(options)

}

function prepareExecution(options) {
  const { expandArgv1, initializeModules, isMainThread, shouldSpawnLoaderHookWorker, shouldPreloadModules } = options;

  refreshRuntimeOptions();

  // Patch the process object and get the resolved main entry point.
  const mainEntry = patchProcessObject(expandArgv1);
  setupTraceCategoryState();
  setupInspectorHooks();
  setupNetworkInspection();
  setupNavigator();
  setupWarningHandler();
  setupFFI();
  setupSQLite();
  setupStreamIter();
  setupVfs();
  setupQuic();
  setupWebStorage();
  setupWebsocket();
  setupEventsource();
  setupCodeCoverage();
  setupDebugEnv();
  // Process initial diagnostic reporting configuration, if present.
  initializeReport();

  setupDiagnosticsChannel();

  // Load permission system API
  initializePermission();

  initializeSourceMapsHandlers();
  initializeDeprecations();

  initializeConfigFileSupport();

  require('internal/dns/utils').initializeDns();

  if (isMainThread) {
    assert(internalBinding('worker').isMainThread);
    // Worker threads will get the manifest in the message handler.

    // Print stack trace on `SIGINT` if option `--trace-sigint` presents.
    setupStacktracePrinterOnSigint();
    initializeReportSignalHandlers();  // Main-thread-only.
    initializeHeapSnapshotSignalHandlers();
    // If the process is spawned with env NODE_CHANNEL_FD, it's probably
    // spawned by our child_process module, then initialize IPC.
    // This attaches some internal event listeners and creates:
    // process.send(), process.channel, process.connected,
    // process.disconnect().
    setupChildProcessIpcChannel();
    // If this is a worker in cluster mode, start up the communication
    // channel. This needs to be done before any user code gets executed
    // (including preload modules).
    initializeClusterIPC();

    // TODO(joyeecheung): do this for worker threads as well.
    runDeserializeCallbacks();