* Copyright (c) Huawei Technologies Co., Ltd. 2023. All rights reserved.
*
* Licensed 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.
*/
* Description: Hash algorithm
*/
#ifndef DATASYSTEM_COMMON_UTIL_HASH_ALGORITHM_H
#define DATASYSTEM_COMMON_UTIL_HASH_ALGORITHM_H
#include <string>
#include "datasystem/common/util/meta_route_tool.h"
namespace datasystem {
* @brief Get murmurhash3 result of input buffer.
* @param[in] data Buffer to be hashed.
* @param[in] len The size of buffer.
* @param[in] seed Hash seed. Can be any value, zero by default.
* @return uint32_t Hash result.
*/
uint32_t MurmurHash3_32(const uint8_t *data, size_t len, uint32_t seed = 0);
* @brief Get murmurhash3 result of input string.
* @param[in] data String to be hashed.
* @return uint32_t Hash result.
*/
inline uint32_t MurmurHash3_32(const std::string &data)
{
return MurmurHash3_32(reinterpret_cast<const uint8_t *>(data.data()), data.size());
}
}
#endif