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/*
* 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