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 EDM_PARAMETER_UTILS_H
17 #define EDM_PARAMETER_UTILS_H
18 
19 #include <mutex>
20 
21 namespace OHOS {
22 namespace NetManagerStandard {
23 class EdmParameterUtils {
24 public:
25     static EdmParameterUtils &GetInstance();
26     ~EdmParameterUtils() = default;
27     EdmParameterUtils(const EdmParameterUtils&) = delete;
28     EdmParameterUtils& operator=(const EdmParameterUtils&) = delete;
29 
30     bool CheckBoolEdmParameter(const char *key, const char *defaultValue);
31     typedef void (*ParameterChgPtr)(const char *key, const char *value, void *context);
32     void RegisterEdmParameterChangeEvent(const char *key, ParameterChgPtr callback, void *context);
33     void UnRegisterEdmParameterChangeEvent(const char *key);
34 
35 private:
36     EdmParameterUtils() = default;
37 
38     std::recursive_mutex mutex_;
39 };
40 } // namespace NetManagerStandard
41 } // namespace OHOS
42 #endif // EDM_PARAMETER_UTILS_H