1 /* 2 * Copyright (C) 2021-2022 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 #ifndef GET_RAM_INFO_H 16 #define GET_RAM_INFO_H 17 #include <map> 18 #include <memory> 19 #include <string> 20 #include <vector> 21 namespace OHOS { 22 namespace HiviewDFX { 23 class GetRamInfo { 24 public: 25 GetRamInfo(); 26 ~GetRamInfo(); 27 28 struct Ram { 29 uint64_t total {0}; 30 uint64_t free {0}; 31 uint64_t used {0}; 32 uint64_t totalPss {0}; 33 uint64_t kernelUsed {0}; 34 uint64_t cachedInfo {0}; 35 uint64_t freeInfo {0}; 36 int64_t lost {0}; 37 }; 38 39 using ValueMap = std::map<std::string, uint64_t>; 40 using GroupMap = std::map<std::string, ValueMap>; 41 42 Ram GetRam(const GroupMap &smapsInfo, const ValueMap &meminfo) const; 43 44 private: 45 uint64_t GetGroupMapValue(const GroupMap &infos, const std::vector<std::string> keys) const; 46 uint64_t GetValueMapValue(const ValueMap &infos, const std::vector<std::string> strs) const; 47 uint64_t GetTotalPss(const GroupMap &infos) const; 48 uint64_t GetTotalSwapPss(const GroupMap &infos) const; 49 uint64_t GetFreeInfo(const ValueMap &infos) const; 50 uint64_t GetKernelUsedInfo(const ValueMap &infos) const; 51 uint64_t GetCachedInfo(const ValueMap &infos) const; 52 uint64_t GetKreclInfo(const ValueMap &infos) const; 53 uint64_t GetSreclInfo(const ValueMap &infos) const; 54 uint64_t GetMappedInfo(const ValueMap &infos) const; 55 uint64_t GetTotalRam(const ValueMap &infos) const; 56 uint64_t GetZramTotalInfo(const ValueMap &infos) const; 57 uint64_t GetUsedRam(const GroupMap &smapsInfo, const ValueMap &meminfo, Ram &ram) const; 58 uint64_t GetFreeRam(const ValueMap &meminfo, Ram &ram) const; 59 int64_t GetLostRam(const GroupMap &smapsInfo, const ValueMap &meminfo) const; 60 }; 61 } // namespace HiviewDFX 62 } // namespace OHOS 63 #endif