在C ++ Async Bidi流式grpc服务器中未正确收到请求

Question

我有一个双向的RPC流式传输RPC，它正在我的c ++ grpc异步服务器中处理。下面是代码：

class MessageTransferService : public GenericCallData {​​​​​​​
 public:
  MessageTransferService (ServiceHandler* service, ServerCompletionQueue* cq)
        : service_(service), cq_(cq), stream_(&ctx_), status_(CREATE) {​​​​​​​
      Proceed();
   }​​​​​​​

  void Proceed() {​​​​​​​
    if (status_ == CREATE) {​​​​​​​
      status_ = PROCESS;
      service_->RequestMessageTransfer(&ctx_, &stream_, cq_, cq_, this);
    }​​​​​​​ else if (status_ == PROCESS) {​​​​​​​
      new MessageTransferService (service_, cq_);      

      Request indication;
      stream_.Read(&indication, this);
      std::cout<<"Identity"<< indication.identity()<<std::endl; // O/p shows 0 
      std::cout<<"Payload"<< indication.message()<<std::endl; //Payload appears empty
      
      //Create Response
    }​​​​​​​ else {​​​​​​​
      GPR_ASSERT(status_ == FINISH);
    }​​​​​​​
  }​​​​​​​
 private:
   ServiceHandler *service_;
   ServerCompletionQueue *cq_;
   ServerContext ctx_;

   Request request_;
   Response response_;
   ServerAsyncReaderWriter<Request , Response> stream_;


   enum CallStatus {​​​​​​​ CREATE, READ, WRITE, PROCESS, FINISH }​​​​​​​;
   CallStatus status_;  // The current serving state.
}​​​​​​​;

在收到请求并尝试打印请求中包含的信息时，我看到内容全为0，这是不正确的。有人可以帮忙指出这段代码中可能出什么问题。