1 /*
2  * Copyright (c) 2024-2024 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 POWERMGR_UTILS_LIB_LOADER_INTERFACE_LOADER_H
17 #define POWERMGR_UTILS_LIB_LOADER_INTERFACE_LOADER_H
18 
19 #include <string>
20 #include <unordered_map>
21 #include <vector>
22 #include "library_loader.h"
23 
24 namespace OHOS {
25 namespace PowerMgr {
26 class InterfaceLoader : public LibraryLoader {
27 public:
28     InterfaceLoader(const std::string& libPath, const std::vector<std::string>& symbolArr);
29     virtual ~InterfaceLoader() noexcept;
30     bool Init();
31     void DeInit();
32     void* QueryInterface(const std::string& symbol) const;
33 
34 private:
35     bool LoadAllInterfaces();
36 
37     bool isInited_ {false};
38     std::unordered_map<std::string, void*> interfaces_;
39 };
40 
41 } // namespace PowerMgr
42 }
43 
44 #endif