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_RECLAIM_STRATEGY_MEMCG_MGR_H 17 #define OHOS_MEMORY_MEMMGR_RECLAIM_STRATEGY_MEMCG_MGR_H 18 19 #include <map> 20 #include <string> 21 22 #include "single_instance.h" 23 #include "memcg.h" 24 25 namespace OHOS { 26 namespace Memory { 27 class MemcgMgr final { 28 DECLARE_SINGLE_INSTANCE_BASE(MemcgMgr); 29 public: 30 ~MemcgMgr(); 31 32 // root memcg operations 33 Memcg* GetRootMemcg() const; 34 bool SetRootMemcgPara(); 35 36 // user memcg operations 37 UserMemcg* GetUserMemcg(unsigned int userId); 38 UserMemcg* AddUserMemcg(unsigned int userId); 39 bool RemoveUserMemcg(unsigned int userId); 40 bool UpdateMemcgScoreAndReclaimRatios(unsigned int userId, int score, const ReclaimRatios& ratios); 41 bool AddProcToMemcg(unsigned int pid, unsigned int userId); 42 bool SwapInMemcg(unsigned int userId); // load memcg data 100% to mem 43 SwapInfo* GetMemcgSwapInfo(unsigned int userId); 44 MemInfo* GetMemcgMemInfo(unsigned int userId); 45 private: 46 MemcgMgr(); 47 Memcg* rootMemcg_; 48 std::map<int, UserMemcg*> userMemcgsMap_; // map<userId, UserMemcg*> 49 }; // end class MemcgMgr 50 } // namespace Memory 51 } // namespace OHOS 52 #endif // OHOS_MEMORY_MEMMGR_RECLAIM_STRATEGY_MEMCG_MGR_H 53