1 /*
2  * Copyright (c) 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 #ifndef INTERFACE_MANAGER_H
16 #define INTERFACE_MANAGER_H
17 
18 #include <functional>
19 #include <shared_mutex>
20 
21 #include "data/interface_info.h"
22 #include "wifi_direct_initiator.h"
23 
24 namespace OHOS::SoftBus {
25 class InterfaceManager {
26 public:
GetInstance()27     static InterfaceManager& GetInstance()
28     {
29         static InterfaceManager instance;
30         return instance;
31     }
32 
33     using Updater = std::function<int(InterfaceInfo &)>;
34     using Reader = std::function<int(const InterfaceInfo &)>;
35 
36     int UpdateInterface(InterfaceInfo::InterfaceType type, const Updater &updater);
37     int ReadInterface(InterfaceInfo::InterfaceType type, const Reader &reader);
38 
39     bool IsInterfaceAvailable(InterfaceInfo::InterfaceType type, bool forShare) const;
40 
41     void LockInterface(InterfaceInfo::InterfaceType type, const std::string &owner);
42     void UnlockInterface(InterfaceInfo::InterfaceType type);
43 
44     static void Init();
45     void InitInterface(InterfaceInfo::InterfaceType type);
46 
47 private:
48     class Initiator {
49     public:
Initiator()50         Initiator()
51         {
52             WifiDirectInitiator::GetInstance().Add(InterfaceManager::Init);
53         }
54     };
55 
56     struct ExclusiveHelper {
57         std::shared_mutex lock_;
58         std::string owner_;
59     };
60 
61     static inline Initiator initiator_;
62 
63     mutable std::shared_mutex lock_;
64     InterfaceInfo interfaces_[InterfaceInfo::MAX];
65     ExclusiveHelper exclusives_[InterfaceInfo::MAX];
66 };
67 } // namespace OHOS::SoftBus
68 #endif
69