1 /*
2  * Copyright (c) 2024 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_ABILITY_RUNTIME_RESTART_APP_MANAGER_H
17 #define OHOS_ABILITY_RUNTIME_RESTART_APP_MANAGER_H
18 
19 #include <mutex>
20 #include <string>
21 #include <unordered_map>
22 #include "cpp/mutex.h"
23 #include "nocopyable.h"
24 
25 namespace OHOS {
26 namespace AAFwk {
27 /**
28  * @class RestartAppManager
29  * RestartAppManager provides a facility for managing restart app history.
30  */
31 class RestartAppManager {
32 public:
33     virtual ~RestartAppManager() = default;
34     static RestartAppManager &GetInstance();
35 
36     bool IsRestartAppFrequent(int32_t uid, time_t time);
37     void AddRestartAppHistory(int32_t uid, time_t time);
38     bool IsForegroundToRestartApp() const;
39 
40 private:
41     RestartAppManager() = default;
42     DISALLOW_COPY_AND_MOVE(RestartAppManager);
43 
44     ffrt::mutex restartAppMapLock_;
45     std::unordered_map<int32_t, time_t> restartAppHistory_; // RestartAppKey:time
46 };
47 }  // namespace AAFwk
48 }  // namespace OHOS
49 #endif  // OHOS_ABILITY_RUNTIME_RESTART_APP_MANAGER_H
50