1 /*
2  * Copyright (c) 2021-2023 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 DISTRIBUTED_INPUT_SINK_HANDLER_H
17 #define DISTRIBUTED_INPUT_SINK_HANDLER_H
18 
19 #include <condition_variable>
20 #include <mutex>
21 #include <string>
22 
23 #include "idistributed_hardware_sink.h"
24 #include "iservice_registry.h"
25 #include "single_instance.h"
26 #include "system_ability_definition.h"
27 #include "system_ability_load_callback_stub.h"
28 
29 #include "distributed_input_client.h"
30 #include "i_distributed_sink_input.h"
31 
32 namespace OHOS {
33 namespace DistributedHardware {
34 namespace DistributedInput {
35 class DistributedInputSinkHandler : public IDistributedHardwareSink {
36 DECLARE_SINGLE_INSTANCE_BASE(DistributedInputSinkHandler);
37 public:
38     int32_t InitSink(const std::string &params) override;
39     int32_t ReleaseSink() override;
40     int32_t SubscribeLocalHardware(const std::string &dhId, const std::string &params) override;
41     int32_t UnsubscribeLocalHardware(const std::string &dhId) override;
42     void OnRemoteSinkSvrDied(const wptr<IRemoteObject> &remote);
43     void FinishStartSA(const std::string &params, const sptr<IRemoteObject> &remoteObject);
44     int32_t RegisterPrivacyResources(std::shared_ptr<PrivacyResourcesListener> listener) override;
45     int32_t PauseDistributedHardware(const std::string &networkId) override;
46     int32_t ResumeDistributedHardware(const std::string &networkId) override;
47     int32_t StopDistributedHardware(const std::string &networkId) override;
48 
49 public:
50     class SALoadSinkCb : public OHOS::SystemAbilityLoadCallbackStub {
51     public:
52         void OnLoadSystemAbilitySuccess(int32_t systemAbilityId,
53             const OHOS::sptr<IRemoteObject> &remoteObject) override;
54 
55         void OnLoadSystemAbilityFail(int32_t systemAbilityId) override;
56 
GetSystemAbilityId()57         int32_t GetSystemAbilityId() const
58         {
59             return currSystemAbilityId;
60         }
61 
GetRemoteObject()62         OHOS::sptr<IRemoteObject> GetRemoteObject() const
63         {
64             return currRemoteObject;
65         }
66     private:
67         int32_t currSystemAbilityId = 0;
68         OHOS::sptr<OHOS::IRemoteObject> currRemoteObject;
69     };
70 
71 private:
72     class DInputSinkSvrRecipient : public IRemoteObject::DeathRecipient {
73     public:
74         void OnRemoteDied(const wptr<IRemoteObject> &remote) override;
75     };
76     DistributedInputSinkHandler();
77     ~DistributedInputSinkHandler();
78     OHOS::sptr<OHOS::ISystemAbilityLoadCallback> sysSinkCallback = nullptr;
79 
80     sptr<IDistributedSinkInput> dInputSinkProxy_ = nullptr;
81     sptr<DInputSinkSvrRecipient> sinkSvrRecipient_ = nullptr;
82     std::mutex proxyMutex_;
83     std::condition_variable proxyConVar_;
84 };
85 
86 #ifdef __cplusplus
87 extern "C" {
88 #endif
89 __attribute__((visibility("default"))) IDistributedHardwareSink *GetSinkHardwareHandler();
90 #ifdef __cplusplus
91 }
92 #endif
93 } // namespace DistributedInput
94 } // namespace DistributedHardware
95 } // namespace OHOS
96 
97 #endif // DISTRIBUTED_INPUT_SINK_HANDLER_H
98