| 45 | } |
| 46 | |
| 47 | std::vector<uint8_t> MakeCompressibleData(int data_size) { |
| 48 | std::string base_data = |
| 49 | "Apache Arrow is a cross-language development platform for in-memory data"; |
| 50 | int nrepeats = static_cast<int>(1 + data_size / base_data.size()); |
| 51 | |
| 52 | std::vector<uint8_t> data(base_data.size() * nrepeats); |
| 53 | for (int i = 0; i < nrepeats; ++i) { |
| 54 | std::memcpy(data.data() + i * base_data.size(), base_data.data(), base_data.size()); |
| 55 | } |
| 56 | data.resize(data_size); |
| 57 | return data; |
| 58 | } |
| 59 | |
| 60 | // Check roundtrip of one-shot compression and decompression functions. |
| 61 | void CheckCodecRoundtrip(std::unique_ptr<Codec>& c1, std::unique_ptr<Codec>& c2, |