1 /* 2 * Copyright (C) 2017 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 #pragma once 18 19 #include <string> 20 21 namespace android { 22 namespace os { 23 namespace statsd { 24 25 extern uint32_t Hash32(const char *data, size_t n, uint32_t seed); 26 extern uint64_t Hash64(const char* data, size_t n, uint64_t seed); 27 28 inline uint32_t Hash32(const char *data, size_t n) { 29 return Hash32(data, n, 0xBEEF); 30 } 31 32 inline uint32_t Hash32(const std::string &input) { 33 return Hash32(input.data(), input.size()); 34 } 35 36 inline uint64_t Hash64(const char* data, size_t n) { 37 return Hash64(data, n, 0xDECAFCAFFE); 38 } 39 40 inline uint64_t Hash64(const std::string& str) { 41 return Hash64(str.data(), str.size()); 42 } 43 44 } // namespace statsd 45 } // namespace os 46 } // namespace android 47
