| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| #ifndef KUDU_UTIL_CRC_H_ |
| #define KUDU_UTIL_CRC_H_ |
| |
| #include <cstdint> |
| #include <cstdlib> |
| |
| #include <crcutil/interface.h> |
| |
| namespace kudu { |
| namespace crc { |
| |
| typedef crcutil_interface::CRC Crc; |
| |
| // Returns pointer to singleton instance of CRC32C implementation. |
| Crc* GetCrc32cInstance(); |
| |
| // Helper function to simply calculate a CRC32C of the given data. |
| uint32_t Crc32c(const void* data, size_t length); |
| |
| // Given CRC value of previous chunk of data, |
| // extends it to new chunk and returns the result. |
| uint32_t Crc32c(const void* data, size_t length, uint32_t prev_crc32); |
| |
| } // namespace crc |
| } // namespace kudu |
| |
| #endif // KUDU_UTIL_CRC_H_ |