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 DISTRIBUTEDDATAMGR_CAL_DATABASE_SIZE_H
17 #define DISTRIBUTEDDATAMGR_CAL_DATABASE_SIZE_H
18 
19 #include <vector>
20 #include "visibility.h"
21 
22 namespace OHOS {
23 namespace DistributedKv {
24 struct StoreInfo {
25     std::string userId;
26     std::string appId;
27     std::string storeId;
GetKeyStoreInfo28     std::string GetKey()
29     {
30         return userId + appId + storeId;
31     }
32 };
33 class DbMetaCallbackDelegate {
34 public:
~DbMetaCallbackDelegate()35     KVSTORE_API virtual ~DbMetaCallbackDelegate() {}
36     KVSTORE_API virtual bool GetKvStoreDiskSize(const std::string &storeId, uint64_t &size) = 0;
37     KVSTORE_API virtual void GetKvStoreKeys(std::vector<StoreInfo> &entries) = 0;
38 };
39 }  // namespace DistributedKv
40 }  // namespace OHOS
41 #endif // DISTRIBUTEDDATAMGR_CAL_DATABASE_SIZE_H
42