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_COMMON_INCLUDE_MEMMGR_CONFIG_MANAGER_H 17 #define OHOS_MEMORY_MEMMGR_COMMON_INCLUDE_MEMMGR_CONFIG_MANAGER_H 18 19 #include <map> 20 #include <string> 21 #include <set> 22 #include <memory> 23 #include "event_handler.h" 24 #include "libxml/parser.h" 25 #include "libxml/xpath.h" 26 #include "kernel_interface.h" 27 #include "single_instance.h" 28 #include "reclaim_strategy_constants.h" 29 #include "reclaim_priority_constants.h" 30 #include "memory_level_constants.h" 31 #include "avail_buffer_config.h" 32 #include "kill_config.h" 33 #include "nand_life_config.h" 34 #include "reclaim_config.h" 35 #include "reclaim_priority_config.h" 36 #include "system_memory_level_config.h" 37 #include "switch_config.h" 38 39 namespace OHOS { 40 namespace Memory { 41 class MemmgrConfigManager { 42 DECLARE_SINGLE_INSTANCE_BASE(MemmgrConfigManager); 43 public: 44 bool Init(); 45 void Dump(int fd); 46 bool ReadParamFromXml(); 47 bool WriteReclaimRatiosConfigToKernel(); 48 bool GetXmlLoaded(); 49 AvailBufferConfig GetAvailBufferConfig(); 50 SystemMemoryLevelConfig GetSystemMemoryLevelConfig(); 51 const ReclaimConfig::ReclaimConfigSet& GetReclaimConfigSet(); 52 const ReclaimPriorityConfig& GetReclaimPriorityConfig(); 53 const KillConfig::KillLevelsMap& GetKillLevelsMap(); 54 const KillConfig& GetKillConfig(); 55 const NandLifeConfig& GetNandLifeConfig(); 56 const SwitchConfig& GetSwitchConfig(); 57 58 private: 59 void InitDefaultConfig(); 60 bool ParseXmlRootNode(const xmlNodePtr &rootNodePtr); 61 void ClearExistConfig(); 62 void ParseReclaimNode(const xmlNodePtr &rootNodePtr); 63 bool xmlLoaded_ = false; 64 AvailBufferConfig availBufferConfig_; 65 KillConfig killConfig_; 66 SystemMemoryLevelConfig systemMemoryLevelConfig_; 67 NandLifeConfig nandLifeConfig_; 68 SwitchConfig switchConfig_; 69 ReclaimPriorityConfig reclaimPriorityConfig_; 70 ReclaimConfig reclaimConfig_; 71 void ClearReclaimConfigSet(); 72 MemmgrConfigManager(); 73 ~MemmgrConfigManager(); 74 }; 75 } // namespace Memory 76 } // namespace OHOS 77 #endif // OHOS_MEMORY_MEMMGR_COMMON_INCLUDE_MEMMGR_CONFIG_MANAGER_H 78