1 /*
2  * Copyright (c) 2022-2023 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 OHOS_DAUDIO_SINK_HANDLER_H
17 #define OHOS_DAUDIO_SINK_HANDLER_H
18 
19 #include "idistributed_hardware_sink.h"
20 #include "daudio_sink_ipc_callback.h"
21 #include "single_instance.h"
22 
23 #include "idaudio_sink.h"
24 
25 namespace OHOS {
26 namespace DistributedHardware {
27 class DAudioSinkHandler : public IDistributedHardwareSink {
28 DECLARE_SINGLE_INSTANCE_BASE(DAudioSinkHandler);
29 public:
30     int32_t InitSink(const std::string &params) override;
31     int32_t ReleaseSink() override;
32     int32_t SubscribeLocalHardware(const std::string &dhId, const std::string &param) override;
33     int32_t UnsubscribeLocalHardware(const std::string &dhId) override;
34     void OnRemoteSinkSvrDied(const wptr<IRemoteObject> &remote);
35     void FinishStartSA(const std::string &param, const sptr<IRemoteObject> &remoteObject);
36     int32_t RegisterPrivacyResources(std::shared_ptr<PrivacyResourcesListener> listener) override;
37     int32_t PauseDistributedHardware(const std::string &networkId) override;
38     int32_t ResumeDistributedHardware(const std::string &networkId) override;
39     int32_t StopDistributedHardware(const std::string &networkId) override;
40 
41 private:
42     class DAudioSinkSvrRecipient : public IRemoteObject::DeathRecipient {
43     public:
44         void OnRemoteDied(const wptr<IRemoteObject> &remote) override;
45     };
46 
47     DAudioSinkHandler();
48     ~DAudioSinkHandler();
49 
50     std::mutex sinkProxyMutex_;
51     std::condition_variable sinkProxyConVar_;
52     sptr<IDAudioSink> dAudioSinkProxy_ = nullptr;
53     sptr<DAudioSinkSvrRecipient> sinkSvrRecipient_ = nullptr;
54     sptr<DAudioSinkIpcCallback> dAudioSinkIpcCallback_ = nullptr;
55 };
56 
57 #ifdef __cplusplus
58 extern "C" {
59 #endif
60 __attribute__((visibility("default"))) IDistributedHardwareSink *GetSinkHardwareHandler();
61 #ifdef __cplusplus
62 }
63 #endif
64 } // namespace DistributedHardware
65 } // namespace OHOS
66 #endif // OHOS_DAUDIO_SINK_HANDLER_H