{

cpps_async_task();

virtual ~cpps_async_task();

static void run(cpps_async_task* p,C*c);

cpps_value getresult();

cpps_async_object* getobject();

int8 state();

bool cancelled();

bool done();

cpps_integer get_id();

bool timeout();

bool pending();

bool running();

void cancel();

void start(C* cstate);

void add_done_callback(cpps_value func, cpps_value context);

void remove_done_callback();

void call_done_callback(C* c);

void set_name(std::string n);

std::string get_name();

cpps_async_object* async_object;

coroutine::routine_t rt;

int8 runstate;

std::vector<cpps_stack*> takestacklist;

cpps_value ret; /*return 返回值*/

cpps_value callback_func; /*call back func*/

cpps_value callback_context; /*call back func context*/

std::string name;

cpps_trycatch_error throwerr;//可能携带异常回来

C* c;