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      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