1 /* 2 * Copyright (c) 2022 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_MEMORY_MEMMGR_MEMORY_LEVEL_MANAGER_H 17 #define OHOS_MEMORY_MEMMGR_MEMORY_LEVEL_MANAGER_H 18 19 #include "event_handler.h" 20 #include "memory_level_constants.h" 21 #include "single_instance.h" 22 23 namespace OHOS { 24 namespace Memory { 25 class AppEntity { 26 public: 27 int uid_; 28 std::string name_; AppEntity(int id,std::string name)29 AppEntity(int id, std::string name) : uid_(id), name_(name) {}; 30 }; 31 32 class MemoryLevelManager { 33 DECLARE_SINGLE_INSTANCE_BASE(MemoryLevelManager); 34 35 public: 36 void PsiHandler(); 37 void TriggerMemoryLevelByDump(SystemMemoryInfo &info); 38 39 private: 40 MemoryLevelManager(); 41 ~MemoryLevelManager() = default; 42 void PsiHandlerInner(); 43 void NotifyMemoryLevel(SystemMemoryInfo &info); 44 bool GetEventHandler(); 45 bool CalcSystemMemoryLevel(SystemMemoryInfo &info); 46 bool CalcReclaimAppList(std::vector<std::shared_ptr<AppEntity>> &appList); 47 void NotifyMemoryLevelToSystemAbilityManager(); 48 std::shared_ptr<AppExecFwk::EventHandler> handler_; 49 bool initialized_ = false; 50 long calledCount_ = 0; 51 }; 52 } // namespace Memory 53 } // namespace OHOS 54 #endif // OHOS_MEMORY_MEMMGR_MEMORY_LEVEL_MANAGER_H 55