1 /*
2  * Copyright (C) 2023 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 OHOS_USER_ACCESS_TRACER
17 #define OHOS_USER_ACCESS_TRACER
18 
19 #include <string.h>
20 #include "hitrace_meter.h"
21 
22 class UserAccessTracer final {
23 public:
24     UserAccessTracer() = default;
25 
~UserAccessTracer()26     virtual ~UserAccessTracer()
27     {
28         for (int32_t i = 0; i < count_; i++) {
29             FinishTrace(HITRACE_TAG_FILEMANAGEMENT);
30         }
31         count_ = 0;
32     }
33 
Start(const std::string & label)34     void Start(const std::string &label)
35     {
36         StartTrace(HITRACE_TAG_FILEMANAGEMENT, label);
37         count_++;
38     }
39 
Finish()40     void Finish()
41     {
42         FinishTrace(HITRACE_TAG_FILEMANAGEMENT);
43         count_--;
44     }
45 private:
46     int32_t count_ = 0;
47 };
48 
49 #endif // OHOS_USER_ACCESS_TRACER
50