1 /*
2  * Copyright (c) 2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef TIME_ELAPSER_H
17 #define TIME_ELAPSER_H
18 
19 #include <chrono>
20 
21 namespace OHOS {
22 namespace AI {
23 class TimeElapser {
24 public:
25     TimeElapser();
26     ~TimeElapser();
27     void Reset();
28     int64_t GetStartTime();
29     int64_t ElapseMicro();
30     int64_t ElapseMilli();
31     int64_t ElapseSec();
32 
33 private:
34     std::chrono::system_clock::time_point startTime_;
35 };
36 } // namespace AI
37 } // namespace OHOS
38 
39 #endif // TIME_ELAPSER_H