Function testAsyncShutdown

Tests/CMakeLib/testUVRAII.cxx:17–49

A common pattern is to use an async signal to shutdown the server.

// A common pattern is to use an async signal to shutdown the server.
static bool testAsyncShutdown()
{
  uv_loop_t Loop;
  auto err = uv_loop_init(&Loop);
  if (err != 0) {
    std::cerr << "Could not init loop" << std::endl;
    return false;
  }

  {
    cm::uv_async_ptr signal;
    signal.init(Loop, &signal_reset_fn, &signal);

    std::thread([&] {
      std::this_thread::sleep_for(std::chrono::seconds(2));
      signal.send();
    }).detach();

    if (uv_run(&Loop, UV_RUN_DEFAULT) != 0) {
      std::cerr << "Unclean exit state in testAsyncDtor" << std::endl;
      return false;
    }

    if (signal) {
      std::cerr << "Loop exited with signal not being cleaned up" << std::endl;
      return false;
    }
  }

  uv_loop_close(&Loop);

  return true;
}

static void signal_fn(uv_async_t*)
{