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Commit 2a255d9e authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Android (Google) Code Review
Browse files

Merge "Separate mDisconnected from mState."

parents e6dfb282 cb212cd8

media/libaaudio/include/aaudio/AAudio.h

+1 −0
Original line number Diff line number Diff line
@@ -277,6 +277,7 @@ enum 
    AAUDIO_STREAM_STATE_CLOSED,

    /**

     * The stream is disconnected from audio device.

     * @deprecated

     */

    AAUDIO_STREAM_STATE_DISCONNECTED

};

media/libaaudio/src/client/AudioStreamInternal.cpp

+7 −10
Original line number Diff line number Diff line
@@ -315,11 +315,10 @@ aaudio_result_t AudioStreamInternal::release_l() { 
    aaudio_result_t result = AAUDIO_OK;

    ALOGD("%s(): mServiceStreamHandle = 0x%08X", __func__, mServiceStreamHandle);

    if (mServiceStreamHandle != AAUDIO_HANDLE_INVALID) {

        aaudio_stream_state_t currentState = getState();

        // Don't release a stream while it is running. Stop it first.

        // If DISCONNECTED then we should still try to stop in case the

        // error callback is still running.

        if (isActive() || currentState == AAUDIO_STREAM_STATE_DISCONNECTED) {

        if (isActive() || isDisconnected()) {

            requestStop_l();

        }
@@ -432,11 +431,11 @@ aaudio_result_t AudioStreamInternal::requestStart_l() 
        return AAUDIO_ERROR_INVALID_STATE;

    }



    aaudio_stream_state_t originalState = getState();

    if (originalState == AAUDIO_STREAM_STATE_DISCONNECTED) {

    if (isDisconnected()) {

        ALOGD("requestStart() but DISCONNECTED");

        return AAUDIO_ERROR_DISCONNECTED;

    }

    aaudio_stream_state_t originalState = getState();

    setState(AAUDIO_STREAM_STATE_STARTING);



    // Clear any stale timestamps from the previous run.
@@ -456,7 +455,7 @@ aaudio_result_t AudioStreamInternal::requestStart_l() 
        ALOGD("%s() error = %d, stream was probably stolen", __func__, result);

        // Stealing was added in R. Coerce result to improve backward compatibility.

        result = AAUDIO_ERROR_DISCONNECTED;

        setState(AAUDIO_STREAM_STATE_DISCONNECTED);

        setDisconnected();

    }



    startTime = AudioClock::getNanoseconds();
@@ -473,7 +472,6 @@ aaudio_result_t AudioStreamInternal::requestStart_l() 
        result = createThread_l(periodNanos, aaudio_callback_thread_proc, this);

    }

    if (result != AAUDIO_OK) {

        // TODO(b/214607638): Do we want to roll back to original state or keep as disconnected?

        setState(originalState);

    }

    return result;
@@ -499,8 +497,7 @@ int64_t AudioStreamInternal::calculateReasonableTimeout() { 
// This must be called under mStreamLock.

aaudio_result_t AudioStreamInternal::stopCallback_l()

{

    if (isDataCallbackSet()

            && (isActive() || getState() == AAUDIO_STREAM_STATE_DISCONNECTED)) {

    if (isDataCallbackSet() && (isActive() || isDisconnected())) {

        mCallbackEnabled.store(false);

        aaudio_result_t result = joinThread_l(nullptr); // may temporarily unlock mStreamLock

        if (result == AAUDIO_ERROR_INVALID_HANDLE) {
@@ -525,7 +522,7 @@ aaudio_result_t AudioStreamInternal::requestStop_l() { 
    // and the callback may have stopped the stream.

    // Check to make sure the stream still needs to be stopped.

    // See also AudioStream::safeStop_l().

    if (!(isActive() || getState() == AAUDIO_STREAM_STATE_DISCONNECTED)) {

    if (!(isActive() || isDisconnected())) {

        ALOGD("%s() returning early, not active or disconnected", __func__);

        return AAUDIO_OK;

    }
@@ -675,7 +672,7 @@ aaudio_result_t AudioStreamInternal::onEventFromServer(AAudioServiceMessage *mes 
                mAudioEndpoint->eraseDataMemory();

            }

            result = AAUDIO_ERROR_DISCONNECTED;

            setState(AAUDIO_STREAM_STATE_DISCONNECTED);

            setDisconnected();

            ALOGW("%s - AAUDIO_SERVICE_EVENT_DISCONNECTED - FIFO cleared", __func__);

            break;

        case AAUDIO_SERVICE_EVENT_VOLUME:

media/libaaudio/src/core/AudioStream.cpp

+38 −18
Original line number Diff line number Diff line
@@ -61,10 +61,9 @@ AudioStream::~AudioStream() { 
    // If the stream is deleted when OPEN or in use then audio resources will leak.

    // This would indicate an internal error. So we want to find this ASAP.

    LOG_ALWAYS_FATAL_IF(!(getState() == AAUDIO_STREAM_STATE_CLOSED

                          || getState() == AAUDIO_STREAM_STATE_UNINITIALIZED

                          || getState() == AAUDIO_STREAM_STATE_DISCONNECTED),

                        "~AudioStream() - still in use, state = %s",

                        AudioGlobal_convertStreamStateToText(getState()));

                          || getState() == AAUDIO_STREAM_STATE_UNINITIALIZED),

                        "~AudioStream() - still in use, state = %s disconnected = %d",

                        AudioGlobal_convertStreamStateToText(getState()), isDisconnected());

}



aaudio_result_t AudioStream::open(const AudioStreamBuilder& builder)
@@ -158,6 +157,11 @@ aaudio_result_t AudioStream::systemStart() { 


    std::lock_guard<std::mutex> lock(mStreamLock);



    if (isDisconnected()) {

        ALOGW("%s() stream is disconnected", __func__);

        return AAUDIO_ERROR_INVALID_STATE;

    }



    switch (getState()) {

        // Is this a good time to start?

        case AAUDIO_STREAM_STATE_OPEN:
@@ -176,8 +180,13 @@ aaudio_result_t AudioStream::systemStart() { 
                  AudioGlobal_convertStreamStateToText(getState()));

            return AAUDIO_ERROR_INVALID_STATE;



        // Don't start when the stream is dead!

        case AAUDIO_STREAM_STATE_DISCONNECTED:

            // This must not happen after deprecating AAUDIO_STREAM_STATE_DISCONNECTED, trying to

            // start will finally return ERROR_DISCONNECTED.

            ALOGE("%s, unexpected state = AAUDIO_STREAM_STATE_DISCONNECTED", __func__);

            return AAUDIO_ERROR_INTERNAL;



        // Don't start when the stream is dead!

        case AAUDIO_STREAM_STATE_CLOSING:

        case AAUDIO_STREAM_STATE_CLOSED:

        default:
@@ -210,7 +219,11 @@ aaudio_result_t AudioStream::systemPause() { 
        // Proceed with pausing.

        case AAUDIO_STREAM_STATE_STARTING:

        case AAUDIO_STREAM_STATE_STARTED:

            break;



        case AAUDIO_STREAM_STATE_DISCONNECTED:

            // This must not happen after deprecating AAUDIO_STREAM_STATE_DISCONNECTED

            ALOGE("%s, unexpected state = AAUDIO_STREAM_STATE_DISCONNECTED", __func__);

            break;



            // Transition from one inactive state to another.
@@ -289,7 +302,10 @@ aaudio_result_t AudioStream::safeStop_l() { 
        // Proceed with stopping.

        case AAUDIO_STREAM_STATE_STARTING:

        case AAUDIO_STREAM_STATE_STARTED:

            break;

        case AAUDIO_STREAM_STATE_DISCONNECTED:

            // This must not happen after deprecating AAUDIO_STREAM_STATE_DISCONNECTED

            ALOGE("%s, unexpected state = AAUDIO_STREAM_STATE_DISCONNECTED", __func__);

            break;



        // Transition from one inactive state to another.
@@ -369,13 +385,8 @@ void AudioStream::setState(aaudio_stream_state_t state) { 
    if (state == oldState) {

        return; // no change

    }

    // Track transition to DISCONNECTED state.

    if (state == AAUDIO_STREAM_STATE_DISCONNECTED) {

        android::mediametrics::LogItem(mMetricsId)

                .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_DISCONNECT)

                .set(AMEDIAMETRICS_PROP_STATE, AudioGlobal_convertStreamStateToText(oldState))

                .record();

    }

    LOG_ALWAYS_FATAL_IF(state == AAUDIO_STREAM_STATE_DISCONNECTED,

                        "Disconnected state must be separated from mState");

    // CLOSED is a final state

    if (oldState == AAUDIO_STREAM_STATE_CLOSED) {

        ALOGW("%s(%d) tried to set to %d but already CLOSED", __func__, getId(), state);
@@ -385,12 +396,6 @@ void AudioStream::setState(aaudio_stream_state_t state) { 
               && state != AAUDIO_STREAM_STATE_CLOSED) {

        ALOGW("%s(%d) tried to set to %d but already CLOSING", __func__, getId(), state);



    // Once DISCONNECTED, we can only move to CLOSING or CLOSED state.

    } else if (oldState == AAUDIO_STREAM_STATE_DISCONNECTED

               && !(state == AAUDIO_STREAM_STATE_CLOSING

                   || state == AAUDIO_STREAM_STATE_CLOSED)) {

        ALOGW("%s(%d) tried to set to %d but already DISCONNECTED", __func__, getId(), state);



    } else {

        mState.store(state);

        // Wake up a wakeForStateChange thread if it exists.
@@ -398,6 +403,21 @@ void AudioStream::setState(aaudio_stream_state_t state) { 
    }

}



void AudioStream::setDisconnected() {

    const bool old = isDisconnected();

    ALOGD("%s setting disconnected, current disconnected: %d, current state: %d",

          __func__, old, getState());

    if (old) {

        return; // no change, the stream is already disconnected

    }

    mDisconnected.store(true);

    // Track transition to DISCONNECTED state.

    android::mediametrics::LogItem(mMetricsId)

            .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_DISCONNECT)

            .set(AMEDIAMETRICS_PROP_STATE, AudioGlobal_convertStreamStateToText(getState()))

            .record();

}



aaudio_result_t AudioStream::waitForStateChange(aaudio_stream_state_t currentState,

                                                aaudio_stream_state_t *nextState,

                                                int64_t timeoutNanoseconds)

media/libaaudio/src/core/AudioStream.h

+7 −0
Original line number Diff line number Diff line
@@ -558,6 +558,11 @@ protected: 


    void setState(aaudio_stream_state_t state);



    bool isDisconnected() const {

        return mDisconnected.load();

    }

    void setDisconnected();



    void setDeviceId(int32_t deviceId) {

        mDeviceId = deviceId;

    }
@@ -683,6 +688,8 @@ private: 


    std::atomic<aaudio_stream_state_t>          mState{AAUDIO_STREAM_STATE_UNINITIALIZED};



    std::atomic_bool            mDisconnected{false};



    // These do not change after open().

    int32_t                     mSamplesPerFrame = AAUDIO_UNSPECIFIED;

    aaudio_channel_mask_t       mChannelMask = AAUDIO_UNSPECIFIED;

media/libaaudio/src/legacy/AudioStreamLegacy.cpp

+5 −5
Original line number Diff line number Diff line
@@ -85,7 +85,7 @@ size_t AudioStreamLegacy::onMoreData(const android::AudioTrack::Buffer& buffer) 
    // AudioRecord::Buffer

    // TODO define our own AudioBuffer and pass it from the subclasses.

    size_t written = buffer.size();

    if (getState() == AAUDIO_STREAM_STATE_DISCONNECTED) {

    if (isDisconnected()) {

        ALOGW("%s() data, stream disconnected", __func__);

        // This will kill the stream and prevent it from being restarted.

        // That is OK because the stream is disconnected.
@@ -150,7 +150,7 @@ size_t AudioStreamLegacy::onMoreData(const android::AudioRecord::Buffer& buffer) 
    // AudioRecord::Buffer

    // TODO define our own AudioBuffer and pass it from the subclasses.

    size_t written = buffer.size();

    if (getState() == AAUDIO_STREAM_STATE_DISCONNECTED) {

    if (isDisconnected()) {

        ALOGW("%s() data, stream disconnected", __func__);

        // This will kill the stream and prevent it from being restarted.

        // That is OK because the stream is disconnected.
@@ -214,11 +214,11 @@ aaudio_result_t AudioStreamLegacy::checkForDisconnectRequest(bool errorCallbackE 


void AudioStreamLegacy::forceDisconnect(bool errorCallbackEnabled) {

    // There is no need to disconnect if already in these states.

    if (getState() != AAUDIO_STREAM_STATE_DISCONNECTED

    if (!isDisconnected()

            && getState() != AAUDIO_STREAM_STATE_CLOSING

            && getState() != AAUDIO_STREAM_STATE_CLOSED

            ) {

        setState(AAUDIO_STREAM_STATE_DISCONNECTED);

        setDisconnected();

        if (errorCallbackEnabled) {

            maybeCallErrorCallback(AAUDIO_ERROR_DISCONNECTED);

        }
@@ -268,7 +268,7 @@ void AudioStreamLegacy::onAudioDeviceUpdate(audio_io_handle_t /* audioIo */, 
    ALOGD("%s(deviceId = %d)", __func__, (int)deviceId);

    if (getDeviceId() != AAUDIO_UNSPECIFIED

            && getDeviceId() != deviceId

            && getState() != AAUDIO_STREAM_STATE_DISCONNECTED

            && !isDisconnected()

            ) {

        // Note that isDataCallbackActive() is affected by state so call it before DISCONNECTING.

        // If we have a data callback and the stream is active, then ask the data callback