1 /*
2  * Copyright (c) 2022-2024 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 #ifndef HIAPPEVENT_FRAMEWORKS_NATIVE_LIB_HIAPPEVENT_OBSERVER_APP_EVENT_OBSERVER_MGR_H
16 #define HIAPPEVENT_FRAMEWORKS_NATIVE_LIB_HIAPPEVENT_OBSERVER_APP_EVENT_OBSERVER_MGR_H
17 
18 #include <memory>
19 #include <mutex>
20 #include <unordered_map>
21 
22 #include "app_event_observer.h"
23 #include "app_event_processor.h"
24 #include "ffrt.h"
25 #include "module_loader.h"
26 #include "nocopyable.h"
27 
28 namespace OHOS {
29 namespace HiviewDFX {
30 class AppEventHandler;
31 class OsEventListener;
32 namespace HiAppEvent {
33 class AppStateCallback;
34 }
35 using HiAppEvent::AppEventObserver;
36 using HiAppEvent::AppStateCallback;
37 using HiAppEvent::AppEventProcessor;
38 using HiAppEvent::ModuleLoader;
39 using HiAppEvent::ReportConfig;
40 
41 class AppEventObserverMgr : public NoCopyable {
42 public:
43     static AppEventObserverMgr& GetInstance();
44 
45     void CreateEventHandler();
46     void DestroyEventHandler();
47     int64_t RegisterObserver(std::shared_ptr<AppEventObserver> observer);
48     int64_t RegisterObserver(const std::string& observerName, const ReportConfig& config = {});
49     int UnregisterObserver(int64_t observerSeq);
50     int UnregisterObserver(const std::string& observerName);
51     int Load(const std::string& moduleName);
52     int RegisterProcessor(const std::string& name, std::shared_ptr<AppEventProcessor> processor);
53     int UnregisterProcessor(const std::string& name);
54     void HandleEvents(std::vector<std::shared_ptr<AppEventPack>>& events);
55     void HandleTimeout();
56     void HandleBackground();
57     void HandleClearUp();
58 
59     int SetReportConfig(int64_t observerSeq, const ReportConfig& config);
60     int GetReportConfig(int64_t observerSeq, ReportConfig& config);
61 
62 private:
63     AppEventObserverMgr();
64     ~AppEventObserverMgr();
65     void SendEventToHandler();
66     void RegisterAppStateCallback();
67     void UnregisterAppStateCallback();
68     bool InitObserverFromListener(std::shared_ptr<AppEventObserver> observer, bool sendFlag);
69     void UnregisterOsEventListener();
70 
71 private:
72     std::unique_ptr<ModuleLoader> moduleLoader_; // moduleLoader_ must declared before observers_, or lead to crash
73     std::unordered_map<int64_t, std::shared_ptr<AppEventObserver>> observers_;
74     std::shared_ptr<AppEventHandler> handler_;
75     std::shared_ptr<AppStateCallback> appStateCallback_;
76     ffrt::mutex observerMutex_;
77     std::shared_ptr<OsEventListener> listener_;
78     bool hasHandleTimeout_ = false;
79     ffrt::mutex handlerMutex_;
80 };
81 } // namespace HiviewDFX
82 } // namespace OHOS
83 #endif // HIAPPEVENT_FRAMEWORKS_NATIVE_LIB_HIAPPEVENT_OBSERVER_APP_EVENT_OBSERVER_MGR_H
84