96d3573cda
Stream objects used to hold a pointer to underlying HAL device object which they didn't own. Since destruction of server side objects is asynchronous, it was possible that a Device object gets destroyed before Stream objects, making all the HAL device object pointer to become stale. Fixed by adding a strong reference to Device objects into Stream objects. Bug: 36702804 Change-Id: I3da3611afbb91d6fd6410ac5b8af2a2eebfa6dac Test: ran Loopback app and HAL VTS tests
139 lines
5.8 KiB
C++
139 lines
5.8 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_AUDIO_V2_0_STREAMOUT_H
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#define ANDROID_HARDWARE_AUDIO_V2_0_STREAMOUT_H
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#include <atomic>
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#include <memory>
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#include <android/hardware/audio/2.0/IStreamOut.h>
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#include <hidl/MQDescriptor.h>
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#include <hidl/Status.h>
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#include <fmq/EventFlag.h>
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#include <fmq/MessageQueue.h>
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#include <utils/Thread.h>
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#include "Device.h"
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#include "Stream.h"
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namespace android {
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namespace hardware {
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namespace audio {
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namespace V2_0 {
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namespace implementation {
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using ::android::hardware::audio::common::V2_0::AudioChannelMask;
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using ::android::hardware::audio::common::V2_0::AudioDevice;
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using ::android::hardware::audio::common::V2_0::AudioFormat;
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using ::android::hardware::audio::V2_0::AudioDrain;
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using ::android::hardware::audio::V2_0::DeviceAddress;
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using ::android::hardware::audio::V2_0::IStream;
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using ::android::hardware::audio::V2_0::IStreamOut;
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using ::android::hardware::audio::V2_0::IStreamOutCallback;
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using ::android::hardware::audio::V2_0::ParameterValue;
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using ::android::hardware::audio::V2_0::Result;
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using ::android::hardware::audio::V2_0::TimeSpec;
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using ::android::hardware::Return;
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using ::android::hardware::Void;
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using ::android::hardware::hidl_vec;
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using ::android::hardware::hidl_string;
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using ::android::sp;
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struct StreamOut : public IStreamOut {
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typedef MessageQueue<WriteCommand, kSynchronizedReadWrite> CommandMQ;
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typedef MessageQueue<uint8_t, kSynchronizedReadWrite> DataMQ;
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typedef MessageQueue<WriteStatus, kSynchronizedReadWrite> StatusMQ;
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StreamOut(const sp<Device>& device, audio_stream_out_t* stream);
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// Methods from ::android::hardware::audio::V2_0::IStream follow.
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Return<uint64_t> getFrameSize() override;
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Return<uint64_t> getFrameCount() override;
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Return<uint64_t> getBufferSize() override;
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Return<uint32_t> getSampleRate() override;
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Return<void> getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) override;
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Return<Result> setSampleRate(uint32_t sampleRateHz) override;
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Return<AudioChannelMask> getChannelMask() override;
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Return<void> getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) override;
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Return<Result> setChannelMask(AudioChannelMask mask) override;
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Return<AudioFormat> getFormat() override;
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Return<void> getSupportedFormats(getSupportedFormats_cb _hidl_cb) override;
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Return<Result> setFormat(AudioFormat format) override;
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Return<void> getAudioProperties(getAudioProperties_cb _hidl_cb) override;
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Return<Result> addEffect(uint64_t effectId) override;
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Return<Result> removeEffect(uint64_t effectId) override;
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Return<Result> standby() override;
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Return<AudioDevice> getDevice() override;
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Return<Result> setDevice(const DeviceAddress& address) override;
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Return<Result> setConnectedState(const DeviceAddress& address, bool connected) override;
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Return<Result> setHwAvSync(uint32_t hwAvSync) override;
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Return<void> getParameters(
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const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb) override;
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Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters) override;
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Return<void> debugDump(const hidl_handle& fd) override;
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Return<Result> close() override;
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// Methods from ::android::hardware::audio::V2_0::IStreamOut follow.
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Return<uint32_t> getLatency() override;
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Return<Result> setVolume(float left, float right) override;
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Return<void> prepareForWriting(
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uint32_t frameSize, uint32_t framesCount, prepareForWriting_cb _hidl_cb) override;
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Return<void> getRenderPosition(getRenderPosition_cb _hidl_cb) override;
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Return<void> getNextWriteTimestamp(getNextWriteTimestamp_cb _hidl_cb) override;
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Return<Result> setCallback(const sp<IStreamOutCallback>& callback) override;
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Return<Result> clearCallback() override;
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Return<void> supportsPauseAndResume(supportsPauseAndResume_cb _hidl_cb) override;
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Return<Result> pause() override;
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Return<Result> resume() override;
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Return<bool> supportsDrain() override;
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Return<Result> drain(AudioDrain type) override;
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Return<Result> flush() override;
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Return<void> getPresentationPosition(getPresentationPosition_cb _hidl_cb) override;
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Return<Result> start() override;
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Return<Result> stop() override;
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Return<void> createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) override;
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Return<void> getMmapPosition(getMmapPosition_cb _hidl_cb) override;
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static Result getPresentationPositionImpl(
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audio_stream_out_t *stream, uint64_t *frames, TimeSpec *timeStamp);
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private:
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bool mIsClosed;
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const sp<Device> mDevice;
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audio_stream_out_t *mStream;
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const sp<Stream> mStreamCommon;
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const sp<StreamMmap<audio_stream_out_t>> mStreamMmap;
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sp<IStreamOutCallback> mCallback;
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std::unique_ptr<CommandMQ> mCommandMQ;
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std::unique_ptr<DataMQ> mDataMQ;
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std::unique_ptr<StatusMQ> mStatusMQ;
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EventFlag* mEfGroup;
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std::atomic<bool> mStopWriteThread;
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sp<Thread> mWriteThread;
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virtual ~StreamOut();
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static int asyncCallback(stream_callback_event_t event, void *param, void *cookie);
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};
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} // namespace implementation
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} // namespace V2_0
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} // namespace audio
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} // namespace hardware
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} // namespace android
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#endif // ANDROID_HARDWARE_AUDIO_V2_0_STREAMOUT_H
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