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 
16 #ifndef DDM_ADAPTER_IMPL_H
17 #define DDM_ADAPTER_IMPL_H
18 
19 #include <mutex>
20 #include <set>
21 
22 #include "device_manager.h"
23 #include "nocopyable.h"
24 
25 #include "i_ddm_adapter.h"
26 
27 namespace OHOS {
28 namespace Msdp {
29 namespace DeviceStatus {
30 class DDMAdapterImpl final : public IDDMAdapter, public std::enable_shared_from_this<DDMAdapterImpl> {
31 public:
32     DDMAdapterImpl() = default;
33     ~DDMAdapterImpl();
34     DISALLOW_COPY_AND_MOVE(DDMAdapterImpl);
35 
36     int32_t Enable() override;
37     void Disable() override;
38 
39     void AddBoardObserver(std::shared_ptr<IBoardObserver> observer) override;
40     void RemoveBoardObserver(std::shared_ptr<IBoardObserver> observer) override;
41     bool CheckSameAccountToLocal(const std::string &networkId) override;
42 
43 private:
44     int32_t GetTrustedDeviceList(std::vector<DistributedHardware::DmDeviceInfo> &deviceList);
45 
46 private:
47     class Observer final {
48     public:
Observer(std::shared_ptr<IBoardObserver> observer)49         explicit Observer(std::shared_ptr<IBoardObserver> observer)
50             : observer_(observer) {}
51 
52         Observer() = default;
53         ~Observer() = default;
54         DISALLOW_COPY_AND_MOVE(Observer);
55 
Lock()56         std::shared_ptr<IBoardObserver> Lock() const noexcept
57         {
58             return observer_.lock();
59         }
60 
61         bool operator<(const Observer &other) const noexcept
62         {
63             return (observer_.lock() < other.observer_.lock());
64         }
65 
66     private:
67         std::weak_ptr<IBoardObserver> observer_;
68     };
69 
70     class DmInitCb final : public DistributedHardware::DmInitCallback {
71     public:
72         DmInitCb() = default;
73         ~DmInitCb() = default;
74         DISALLOW_COPY_AND_MOVE(DmInitCb);
75 
OnRemoteDied()76         void OnRemoteDied() override {}
77     };
78 
79     class DmBoardStateCb final : public DistributedHardware::DeviceStateCallback {
80     public:
DmBoardStateCb(std::shared_ptr<DDMAdapterImpl> dm)81         DmBoardStateCb(std::shared_ptr<DDMAdapterImpl> dm) : dm_(dm) {}
82         ~DmBoardStateCb() = default;
83         DISALLOW_COPY_AND_MOVE(DmBoardStateCb);
84 
OnDeviceOnline(const DistributedHardware::DmDeviceInfo & deviceInfo)85         void OnDeviceOnline(const DistributedHardware::DmDeviceInfo &deviceInfo) override
86         {
87             std::shared_ptr<DDMAdapterImpl> dm = dm_.lock();
88             if (dm != nullptr) {
89                 dm->OnBoardOnline(deviceInfo.networkId);
90             }
91         }
92 
OnDeviceOffline(const DistributedHardware::DmDeviceInfo & deviceInfo)93         void OnDeviceOffline(const DistributedHardware::DmDeviceInfo &deviceInfo) override
94         {
95             std::shared_ptr<DDMAdapterImpl> dm = dm_.lock();
96             if (dm != nullptr) {
97                 dm->OnBoardOffline(deviceInfo.networkId);
98             }
99         }
100 
OnDeviceChanged(const DistributedHardware::DmDeviceInfo & deviceInfo)101         void OnDeviceChanged(const DistributedHardware::DmDeviceInfo &deviceInfo) override {}
OnDeviceReady(const DistributedHardware::DmDeviceInfo & deviceInfo)102         void OnDeviceReady(const DistributedHardware::DmDeviceInfo &deviceInfo) override {}
103 
104     private:
105         std::weak_ptr<DDMAdapterImpl> dm_;
106     };
107 
108     void OnBoardOnline(const std::string &networkId);
109     void OnBoardOffline(const std::string &networkId);
110 
111     std::mutex lock_;
112     std::shared_ptr<DmInitCb> initCb_;
113     std::shared_ptr<DmBoardStateCb> boardStateCb_;
114     std::set<Observer> observers_;
115 };
116 } // namespace DeviceStatus
117 } // namespace Msdp
118 } // namespace OHOS
119 #endif // DDM_ADAPTER_IMPL_H
120