diff --git a/include/grpc++/impl/call.h b/include/grpc++/impl/call.h index 64fa5d6efbeedaa9ce2db3a4c917797f95aa9910..2716bfe93adb7b347fa5079fde5b218c34d078d8 100644 --- a/include/grpc++/impl/call.h +++ b/include/grpc++/impl/call.h @@ -172,17 +172,31 @@ class CallOpRecvMessage { grpc_byte_buffer* recv_buf_; }; +namespace CallOpGenericRecvMessageHelper { +class DeserializeFunc { + public: + virtual Status deser(grpc_byte_buffer* buf,int max_message_size) = 0; +}; + +template<class R> class DeserializeFuncType : public DeserializeFunc { + public: + DeserializeFuncType(R *message): message_(message) {} + Status deser(grpc_byte_buffer* buf,int max_message_size) { + return SerializationTraits<R>::Deserialize(buf, message_, + max_message_size); + } + private: + R *message_; // Not a managed pointer because management is external to this +}; +}; // namespace CallOpGenericRecvMessageHelper + class CallOpGenericRecvMessage { public: CallOpGenericRecvMessage() : got_message(false) {} - template <class R> - void RecvMessage(R* message) { - deserialize_ = [message](grpc_byte_buffer* buf, - int max_message_size) -> Status { - return SerializationTraits<R>::Deserialize(buf, message, - max_message_size); - }; + template <class R> void RecvMessage(R* message) { + deserialize_.reset(new CallOpGenericRecvMessageHelper:: + DeserializeFuncType<R>(message)); } bool got_message; @@ -201,7 +215,7 @@ class CallOpGenericRecvMessage { if (recv_buf_) { if (*status) { got_message = true; - *status = deserialize_(recv_buf_, max_message_size).ok(); + *status = deserialize_->deser(recv_buf_, max_message_size).ok(); } else { got_message = false; grpc_byte_buffer_destroy(recv_buf_); @@ -210,12 +224,11 @@ class CallOpGenericRecvMessage { got_message = false; *status = false; } - deserialize_ = DeserializeFunc(); + deserialize_.reset(); } private: - typedef std::function<Status(grpc_byte_buffer*, int)> DeserializeFunc; - DeserializeFunc deserialize_; + std::unique_ptr<CallOpGenericRecvMessageHelper::DeserializeFunc> deserialize_; grpc_byte_buffer* recv_buf_; };