| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef AAUDIO_SERVICE_ENDPOINT_SHARED_H |
| #define AAUDIO_SERVICE_ENDPOINT_SHARED_H |
| |
| #include <atomic> |
| #include <mutex> |
| |
| #include "AAudioServiceEndpoint.h" |
| #include "client/AudioStreamInternal.h" |
| #include "client/AudioStreamInternalPlay.h" |
| #include "AAudioServiceStreamShared.h" |
| #include "AAudioServiceStreamMMAP.h" |
| #include "AAudioService.h" |
| |
| namespace aaudio { |
| |
| /** |
| * This manages an AudioStreamInternal that is shared by multiple Client streams. |
| */ |
| class AAudioServiceEndpointShared : public AAudioServiceEndpoint { |
| |
| public: |
| explicit AAudioServiceEndpointShared(AudioStreamInternal *streamInternal); |
| |
| std::string dump() const override; |
| |
| aaudio_result_t open(const aaudio::AAudioStreamRequest &request) override; |
| |
| void close() override; |
| |
| aaudio_result_t startStream(android::sp<AAudioServiceStreamBase> stream, |
| audio_port_handle_t *clientHandle) override; |
| |
| aaudio_result_t stopStream(android::sp<AAudioServiceStreamBase> stream, |
| audio_port_handle_t clientHandle) override; |
| |
| aaudio_result_t getFreeRunningPosition(int64_t *positionFrames, int64_t *timeNanos) override; |
| |
| aaudio_result_t getTimestamp(int64_t *positionFrames, int64_t *timeNanos) override; |
| |
| virtual void *callbackLoop() = 0; |
| |
| protected: |
| |
| AudioStreamInternal *getStreamInternal() const { |
| return mStreamInternal.get(); |
| }; |
| |
| aaudio_result_t startSharingThread_l(); |
| |
| aaudio_result_t stopSharingThread(); |
| |
| // An MMAP stream that is shared by multiple clients. |
| android::sp<AudioStreamInternal> mStreamInternal; |
| |
| std::atomic<bool> mCallbackEnabled{false}; |
| |
| std::atomic<int> mRunningStreamCount{0}; |
| }; |
| |
| } |
| |
| #endif //AAUDIO_SERVICE_ENDPOINT_SHARED_H |