Method WriteDestructive

library/cpp/netliba/v6/block_chain.h:222–229

will take *data ownership, saves copy

        }
        // will take *data ownership, saves copy
        void WriteDestructive(TVector<char>* data) {
            int n = data ? data->ysize() : 0;
            Write(n);
            if (n > 0) {
                TVector<char>& local = DataVectors.emplace_back(std::move(*data));
                Chain.AddBlock(&local[0], local.ysize());
            }
        }
        void AttachSharedData(TIntrusivePtr<TSharedMemory> shm) {
            SharedData = shm;
        }