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 #include "platform/time/include/time_elapser.h"
17 
18 namespace OHOS {
19 namespace AI {
TimeElapser()20 TimeElapser::TimeElapser()
21 {
22     Reset();
23 }
24 
25 TimeElapser::~TimeElapser() = default;
26 
Reset()27 void TimeElapser::Reset()
28 {
29     startTime_ = std::chrono::system_clock::now();
30 }
31 
GetStartTime()32 int64_t TimeElapser::GetStartTime()
33 {
34     return std::chrono::duration_cast<std::chrono::microseconds>(startTime_.time_since_epoch()).count();
35 }
36 
ElapseMicro()37 int64_t TimeElapser::ElapseMicro()
38 {
39     std::chrono::system_clock::time_point now = std::chrono::system_clock::now();
40     return std::chrono::duration_cast<std::chrono::microseconds>(now - startTime_).count();
41 }
42 
ElapseMilli()43 int64_t TimeElapser::ElapseMilli()
44 {
45     std::chrono::system_clock::time_point now = std::chrono::system_clock::now();
46     return std::chrono::duration_cast<std::chrono::milliseconds>(now - startTime_).count();
47 }
48 
ElapseSec()49 int64_t TimeElapser::ElapseSec()
50 {
51     std::chrono::system_clock::time_point now = std::chrono::system_clock::now();
52     return std::chrono::duration_cast<std::chrono::seconds>(now - startTime_).count();
53 }
54 } // namespace AI
55 } // namespace OHOS