1 /*
2  * Copyright (c) 2021 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_ABILITY_RUNTIME_SYSTEM_MEMORY_ATTR_H
17 #define OHOS_ABILITY_RUNTIME_SYSTEM_MEMORY_ATTR_H
18 
19 #include "parcel.h"
20 
21 namespace OHOS {
22 namespace AppExecFwk {
23 /**
24  * @class SystemMemoryAttr
25  * SystemMemoryAttr is used to query system memory info.
26  */
27 class SystemMemoryAttr : public Parcelable {
28 public:
29     SystemMemoryAttr();
30     virtual ~SystemMemoryAttr() = default;
31     /**
32      * @default The available memory on the system
33      */
34     int64_t availSysMem_;
35 
36     /**
37      * @default The total memory on the system
38      */
39     int64_t totalSysMem_;
40 
41     /**
42      * @default The low memory threshold under which the system
43      * will kill background processes
44      */
45     int64_t threshold_;
46 
47     /**
48      * @default Whether the system is in low memory status
49      */
50     bool isSysInlowMem_;
51 
52     bool ReadFromParcel(Parcel &parcel);
53     virtual bool Marshalling(Parcel &parcel) const override;
54     static SystemMemoryAttr *Unmarshalling(Parcel &parcel);
55 };
56 }  // namespace AppExecFwk
57 }  // namespace OHOS
58 #endif  // OHOS_ABILITY_RUNTIME_SYSTEM_MEMORY_ATTR_H
59