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api_connection.hpp: Properly lock connection object for callbacks

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theoreticalbts 2015-08-10 14:49:00 -04:00
parent 458b601774
commit 3cd9ed4386
1 changed files with 14 additions and 9 deletions
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23
include/fc/rpc/api_connection.hpp
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@ -22,15 +22,15 @@ namespace fc {
public: public:
typedef typename std::function<Signature>::result_type result_type; typedef typename std::function<Signature>::result_type result_type;
callback_functor( fc::api_connection& con, uint64_t id ) callback_functor( std::shared_ptr< fc::api_connection > con, uint64_t id )
:_callback_id(id),_api_connection(con){} :_callback_id(id),_api_connection(con){}
template<typename... Args> template<typename... Args>
result_type operator()( Args... args )const; result_type operator()( Args... args )const;
private: private:
uint64_t _callback_id; uint64_t _callback_id;
fc::api_connection& _api_connection; std::shared_ptr< fc::api_connection > _api_connection;
}; };
template<typename R, typename Arg0, typename ... Args> template<typename R, typename Arg0, typename ... Args>
@ -91,7 +91,12 @@ namespace fc {
return _methods[method_id](args); return _methods[method_id](args);
} }
fc::api_connection& get_connection(){ auto tmp = _api_connection.lock(); FC_ASSERT( tmp, "connection closed"); return *tmp; } std::shared_ptr< fc::api_connection > get_connection()
{
std::shared_ptr< fc::api_connection > locked = _api_connection.lock();
FC_ASSERT( locked, "connection closed" );
return locked;
}
std::vector<std::string> get_method_names()const std::vector<std::string> get_method_names()const
{ {
@ -391,7 +396,7 @@ namespace fc {
template<typename... Args> template<typename... Args>
typename callback_functor<Signature>::result_type callback_functor<Signature>::operator()( Args... args )const typename callback_functor<Signature>::result_type callback_functor<Signature>::operator()( Args... args )const
{ {
_api_connection.send_callback( _callback_id, fc::variants{ args... } ).template as< result_type >(); _api_connection->send_callback( _callback_id, fc::variants{ args... } ).template as< result_type >();
} }
@ -401,17 +406,17 @@ namespace fc {
public: public:
typedef void result_type; typedef void result_type;
callback_functor( fc::api_connection& con, uint64_t id ) callback_functor( std::shared_ptr< fc::api_connection > con, uint64_t id )
:_callback_id(id),_api_connection(con){} :_callback_id(id),_api_connection(con){}
void operator()( Args... args )const void operator()( Args... args )const
{ {
_api_connection.send_notice( _callback_id, fc::variants{ args... } ); _api_connection->send_notice( _callback_id, fc::variants{ args... } );
} }
private: private:
uint64_t _callback_id; uint64_t _callback_id;
fc::api_connection& _api_connection; std::shared_ptr< fc::api_connection > _api_connection;
}; };
} // namespace detail } // namespace detail