NodeJS Create Environment method

nodejs-create-environment-method.cc

Environment* CreateEnvironment(Isolate* isolate, uv_loop_t* loop, Handle<Context> context, int argc, const char* const* argv, int exec_argc, const char* const* exec_argv) {
  HandleScope handle_scope(isolate);

  Context::Scope context_scope(context);
  Environment* env = Environment::New(context, loop);

  isolate->SetAutorunMicrotasks(false);

  uv_check_init(env->event_loop(), env->immediate_check_handle());
  uv_unref(reinterpret_cast<uv_handle_t*>(env->immediate_check_handle()));
  uv_idle_init(env->event_loop(), env->immediate_idle_handle());
  uv_prepare_init(env->event_loop(), env->idle_prepare_handle());
  uv_check_init(env->event_loop(), env->idle_check_handle());
  uv_unref(reinterpret_cast<uv_handle_t*>(env->idle_prepare_handle()));
  uv_unref(reinterpret_cast<uv_handle_t*>(env->idle_check_handle()));

  // Register handle cleanups
  env->RegisterHandleCleanup(reinterpret_cast<uv_handle_t*>(env->immediate_check_handle()), HandleCleanup, nullptr);
  env->RegisterHandleCleanup(reinterpret_cast<uv_handle_t*>(env->immediate_idle_handle()), HandleCleanup, nullptr);
  env->RegisterHandleCleanup(reinterpret_cast<uv_handle_t*>(env->idle_prepare_handle()), HandleCleanup, nullptr);
  env->RegisterHandleCleanup(reinterpret_cast<uv_handle_t*>(env->idle_check_handle()), HandleCleanup, nullptr);

  if (v8_is_profiling) {
    StartProfilerIdleNotifier(env);
  }

  Local<FunctionTemplate> process_template = FunctionTemplate::New(isolate);
  process_template->SetClassName(FIXED_ONE_BYTE_STRING(isolate, "process"));

  Local<Object> process_object = process_template->GetFunction()->NewInstance();
  env->set_process_object(process_object);

  SetupProcessObject(env, argc, argv, exec_argc, exec_argv);
  LoadAsyncWrapperInfo(env);

  return env;
}