84       data_.resize(size);  in Truncate()
99       data_[static_cast<size_t>(pos)] = static_cast<char>(rnd_.Uniform(256));  in CorruptBuffer()
115       memcpy(scratch, &(data_[offset_]), n);  in Read()
118       *result = Slice(&(data_[offset_]), n);  in Read()
126     if (offset + data.size() > data_.size()) {  in Write()
127       data_.resize(offset_ + data.size());  in Write()
129     data_.replace(offset_, data.size(), data.data(), data.size());  in Write()
130     size_ = data_.size();  in Write()
137     data_.append(data.data(), data.size());  in Append()
138     size_ = data_.size();  in Append()
170   std::string data_;  member in ROCKSDB_NAMESPACE::MemFile