future支持yield语法，并完成相关范例

librf/src/promise.inl

 	template<class _Ty>
 	inline void promise_t<_Ty>::yield_value(value_type val)
 	{
-		_state->set_value(std::move(val));
+		_state->promise_yield_value(this, std::move(val));
 	}
 
 	inline void promise_t<void>::return_void()
 
 	inline void promise_t<void>::yield_value()
 	{
-		_state->set_value();
+		_state->promise_yield_value(this);
 	}
 
 }

librf/src/rf_task.cpp

 
 namespace resumef
 {
-	task_base_t::task_base_t()
-		: _next_node(nullptr)
-		, _prev_node(nullptr)
-	{
-	}
-
 	task_base_t::~task_base_t()
 	{
 	}

librf/src/rf_task.h

 
 	struct task_base_t
 	{
-		RF_API task_base_t();
+		task_base_t() = default;
 		RF_API virtual ~task_base_t();
 
 		state_base_t* get_state() const
 		}
 	protected:
 		counted_ptr<state_base_t> _state;
-	public:
-		task_base_t* _next_node;
-		task_base_t* _prev_node;
 	};
 
 	//----------------------------------------------------------------------------------------------

librf/src/scheduler.h

 //#include <yvals.h>
 
 #include "rf_task.h"
-#include "task_list.h"
 #include "utils.h"
 #include "timer.h"
 

librf/src/state.h

 		}
 
 		auto future_await_resume() -> value_type;
+		template<class _PromiseT, typename = std::enable_if_t<is_promise_v<_PromiseT>>>
+		void promise_yield_value(_PromiseT* promise, value_type val);
 
 		void set_value(value_type val);
 	};
 		}
 
 		void future_await_resume();
+		template<class _PromiseT, typename = std::enable_if_t<is_promise_v<_PromiseT>>>
+		void promise_yield_value(_PromiseT* promise);
 
 		void set_value();
 	};

librf/src/state.inl

 namespace resumef
 {
 	template<class _PromiseT, typename _Enable>
-	inline void state_future_t::promise_initial_suspend(coroutine_handle<_PromiseT> handler)
+	void state_future_t::promise_initial_suspend(coroutine_handle<_PromiseT> handler)
 	{
 		_PromiseT& promise = handler.promise();
 
 		state_base_t* parent_state = promise._state.get();
+		(void)parent_state;
 		assert(this == parent_state);
 		assert(this->_scheduler == nullptr);
 		assert(this->_coro == nullptr);
 	}
 
 	template<class _PromiseT, typename _Enable>
-	inline void state_future_t::promise_final_suspend(coroutine_handle<_PromiseT> handler)
+	void state_future_t::promise_final_suspend(coroutine_handle<_PromiseT> handler)
 	{
 		scoped_lock<lock_type> __guard(this->_mtx);
 
 		_PromiseT& promise = handler.promise();
 
 		state_base_t* parent_state = promise._state.get();
+		(void)parent_state;
 		assert(this == parent_state);
 
 		scheduler_t* sch = this->get_scheduler();
 	}
 
 	template<class _PromiseT, typename _Enable>
-	inline void state_future_t::future_await_suspend(coroutine_handle<_PromiseT> handler)
+	void state_future_t::future_await_suspend(coroutine_handle<_PromiseT> handler)
 	{
 		scoped_lock<lock_type> __guard(this->_mtx);
 
 			sch->add_await(this);
 	}
 
+	template<class _PromiseT, typename _Enable >
+	void state_t<void>::promise_yield_value(_PromiseT* promise)
+	{
+		scoped_lock<lock_type> __guard(this->_mtx);
+
+		this->_has_value = true;
+
+		coroutine_handle<_PromiseT> handler = coroutine_handle<_PromiseT>::from_promise(*promise);
+		if (!handler.done())
+		{
+			if (this->_coro == nullptr)
+				this->_coro = handler;
+			scheduler_t* sch = this->get_scheduler();
+			if (sch != nullptr)
+				sch->add_generator(this);
+		}
+	}
+
+	template<typename _Ty>
+	template<class _PromiseT, typename _Enable >
+	void state_t<_Ty>::promise_yield_value(_PromiseT* promise, _Ty val)
+	{
+		scoped_lock<lock_type> __guard(this->_mtx);
+
+		this->_value = std::move(val);
+
+		coroutine_handle<_PromiseT> handler = coroutine_handle<_PromiseT>::from_promise(*promise);
+		if (!handler.done())
+		{
+			if (this->_coro == nullptr)
+				this->_coro = handler;
+			scheduler_t* sch = this->get_scheduler();
+			if (sch != nullptr)
+				sch->add_generator(this);
+		}
+	}
+
 	template<typename _Ty>
 	auto state_t<_Ty>::future_await_resume() -> value_type
 	{

tutorial/test_async_dynamic_go.cpp

 	{
 		for (int i = 0; i < M; ++i)
 		{
-			go[=]() -> std::experimental::generator<int>
+			go[=]() -> resumef::generator_t<int>
 			{
 				for (int k = 0; k < M; ++k)
 				{

tutorial/test_async_modern_cb.cpp

 struct use_librf_t
 {
 	template<typename _Result_t>
-	using promise_type = resumef::promise_t<_Result_t>;
+	using promise_type = resumef::awaitable_t<_Result_t>;
 
 	template<typename _Result_t>
 	using future_type = resumef::future_t<_Result_t>;
 		try
 		{
 			int val = co_await add_async(1, 2, use_librf);
+			std::cout << val << std::endl;
 
 			//muldiv_async函数可能会抛异常，取决于val是否是0
 			//异常将会带回到本协程里的代码，所以需要try-catch

vs_proj/librf.cpp

 
 int main(int argc, const char* argv[])
 {
+	(void)argc;
+	(void)argv;
+
 	//resumable_main_cb();
+	//resumable_main_modern_cb();
 	//resumable_main_suspend_always();
 	//resumable_main_yield_return();
-	resumable_main_resumable();
+	//resumable_main_resumable();
 	//resumable_main_routine();
 	//resumable_main_exception();
+	resumable_main_dynamic_go();
 
 /*
 	resumable_main_benchmark_mem();
 	resumable_main_mutex();
 	resumable_main_event();
 	resumable_main_event_timeout();
-	resumable_main_dynamic_go();
 	resumable_main_channel();
-	resumable_main_cb();
 */
 
 	return 0;

vs_proj/librf.vcxproj

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