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_HDI_PARTITIONSLOT_PARTITIONSLOT_MANAGER_H
17 #define OHOS_HDI_PARTITIONSLOT_PARTITIONSLOT_MANAGER_H
18 
19 #include <cstdint>
20 #include <string>
21 
22 #include "singleton.h"
23 
24 namespace OHOS {
25 namespace HDI {
26 namespace Partitionslot {
27 namespace V1_0 {
28 class PartitionSlotManager : public DelayedSingleton<PartitionSlotManager> {
29 public:
30     int32_t GetCurrentSlot(int32_t& currentSlot, int32_t& numOfSlots);
31     int32_t GetSlotSuffix(int32_t slot, std::string& suffix);
32     int32_t SetActiveSlot(int32_t slot);
33     int32_t SetSlotUnbootable(int32_t slot);
34 
35 private:
36     int32_t WriteSlot(int fd, int32_t slot, off_t offset, off_t size);
37     int ReadMisc(off_t offset, off_t size);
38     int WriteSlotToMisc(int32_t slot, off_t offset, off_t size);
39 };
40 } // V1_0
41 } // Partitionslot
42 } // HDI
43 } // OHOS
44 
45 #endif // OHOS_HDI_PARTITIONSLOT_PARTITIONSLOT_MANAGER_H