C++ Pthread/SFML 音乐 - 错误 AL lib : (EE) alc_cleanup: 1 device not closed

Question

我有一个项目是重新编码炸弹人，我实现了 sf::Music for music 添加到主菜单，但我遇到了一个错误:

AL lib: (EE) alc_cleanup: 1 device not closed

它依赖于这个:void *pthreadSound(void *);

int     main(int, char **){
  GameEngine    *game = new GameEngine();
  pthread_attr_t        attr;
  pthread_t     sound;
  void          *retval;

  try {
    pthread_attr_init(&attr);
    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
    if (!game->initialize())
      throw ErrorBomberman("Game fail initialisation", "main");
    game->m_mutex = PTHREAD_MUTEX_INITIALIZER;
    game->setLock(true);
    pthread_create(&sound, &attr, pthreadSound, (void *)game);
    game->ChangeState(IntroState::Instance());
    while (game->Running()){
      game->HandleEvents();
      game->update();
      game->draw();
    }
    game->Cleanup();
    pthread_join(sound, &retval);
  } catch (ErrorBomberman const &e) {
    std::cerr << "Error caught in " << e.getComponent() << ": " << e.what() << std::endl;
  }
  return (EXIT_SUCCESS);
}

void            *pthreadSound(void *game){
  sf::Music     music1;

  if (!music1.OpenFromFile("./ressources/Bomberman_Theme.ogg"))
    std::cout << "Erreur : load" << std::endl;
  music1.Play();
  while (((GameEngine *)game)->getLock()){
  }
  std::cout << "Stop" << std::endl;
  music1.Stop();
  pthread_exit(NULL);
  return (NULL);
}

也许是因为 Stop 不起作用？我不知道。如果您有想法，谢谢。

Answer 1

根据docs :

As a sound stream, a music is played in its own thread in order not to block the rest of the program. This means that you can leave the music alone after calling play(), it will manage itself very well.

所以你真的不需要创建另一个线程来播放音乐。