1 /* 2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef CHRE_UTIL_HASH_H_ 18 #define CHRE_UTIL_HASH_H_ 19 20 #include <cstddef> 21 #include <cstdint> 22 23 namespace chre { 24 25 /** 26 * Computes the 32-bit FNV-1a hash of the data with size: size. 27 * @param data The data to hash. Must be non-nullptr. 28 * @param size The size of the data to hash. Must be greater than 0. 29 * @return The FNV-1a hash or UINT32_MAX if the size is 0 or data is nullptr. 30 */ 31 uint32_t fnv1a32Hash(const uint8_t* data, size_t size); 32 33 } // namespace chre 34 35 #endif // CHRE_UTIL_HASH_H_ 36