你如何在C++中实现Coroutines

   coroutine(coroutine_handle<> h) : handler(h) {}

   virtual ~coroutine() {}

   void resume() { boost::coroutines::suspend(handler); }

   void exit() { boost::coroutines::throw_exception(boost::system::errc::success); }

   coroutine_handle<> handler;

   return coroutine{h};

   my_coroutine(coroutine_handle<> h) : coroutine(h) {}

   ~my_coroutine() {

       std::cout << "my_coroutine is exiting due to: "<< boost::current_exception_diagnostic_information()<< std::endl;

   }

   void operator()() override {

       do {

           // 执行协程逻辑

       } while (!boost::context::detail::forced_unwind());

       std::cout << "my_coroutine is reentering due to: "<< boost::current_exception_diagnostic_information()<< std::endl;

   }

   void exit() override {

       std::cout << "my_coroutine is exiting due to: "<< boost::system::errc::success<< std::endl;

       super::exit();

   }