Method WriteMetadata

cpp/src/arrow/flight/transport_server.cc:234–244

  }

  Status WriteMetadata(std::shared_ptr<Buffer> app_metadata) override {
    FlightPayload payload{};
    payload.app_metadata = app_metadata;
    ARROW_ASSIGN_OR_RAISE(auto success, stream_->WriteData(payload));
    if (!success) {
      ARROW_RETURN_NOT_OK(Close());
      return MakeFlightError(FlightStatusCode::Internal,
                             "Could not write metadata to stream (client disconnect?)");
    }
    return Status::OK();
  }

  Status WriteWithMetadata(const RecordBatch& batch,
                           std::shared_ptr<Buffer> app_metadata) override {