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#include "purgeablemem_config.h"
39
40namespace OHOS {
41namespace Memory {
42class MemmgrConfigManager {
43    DECLARE_SINGLE_INSTANCE_BASE(MemmgrConfigManager);
44public:
45    bool Init();
46    void Dump(int fd);
47    bool ReadParamFromXml();
48    bool WriteReclaimRatiosConfigToKernel();
49    bool GetXmlLoaded();
50    AvailBufferConfig GetAvailBufferConfig();
51    SystemMemoryLevelConfig GetSystemMemoryLevelConfig();
52    const ReclaimConfig::ReclaimConfigSet& GetReclaimConfigSet();
53    const ReclaimPriorityConfig& GetReclaimPriorityConfig();
54    const KillConfig::KillLevelsMap& GetKillLevelsMap();
55    const KillConfig& GetKillConfig();
56    const NandLifeConfig& GetNandLifeConfig();
57    const SwitchConfig& GetSwitchConfig();
58    const PurgeablememConfig &GetPurgeablememConfig();
59
60private:
61    void InitDefaultConfig();
62    bool ParseXmlRootNode(const xmlNodePtr &rootNodePtr);
63    void ClearExistConfig();
64    void ParseReclaimNode(const xmlNodePtr &rootNodePtr);
65    bool xmlLoaded_ = false;
66    AvailBufferConfig availBufferConfig_;
67    KillConfig killConfig_;
68    SystemMemoryLevelConfig systemMemoryLevelConfig_;
69    NandLifeConfig nandLifeConfig_;
70    SwitchConfig switchConfig_;
71    ReclaimPriorityConfig reclaimPriorityConfig_;
72    ReclaimConfig reclaimConfig_;
73    PurgeablememConfig purgeablememConfig_;
74    void ClearReclaimConfigSet();
75    MemmgrConfigManager();
76    ~MemmgrConfigManager();
77};
78} // namespace Memory
79} // namespace OHOS
80#endif // OHOS_MEMORY_MEMMGR_COMMON_INCLUDE_MEMMGR_CONFIG_MANAGER_H
81