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Commit 9b2bd3cd authored by Phil Burk's avatar Phil Burk Committed by Automerger Merge Worker
Browse files

aaudio: prevent deadlock when stop() calls disconnect() am: 9dd928e1 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/14937759

Change-Id: I62ed9809062f65aa145d6ed9b5e78f98f70c76f1
parents 0148bb4e 9dd928e1

services/oboeservice/AAudioServiceStreamBase.cpp

+7 −8
Original line number Diff line number Diff line
@@ -293,10 +293,6 @@ aaudio_result_t AAudioServiceStreamBase::pause_l() { 
            .set(AMEDIAMETRICS_PROP_STATUS, (int32_t)result)

            .record(); });



    // Send it now because the timestamp gets rounded up when stopStream() is called below.

    // Also we don't need the timestamps while we are shutting down.

    sendCurrentTimestamp();



    result = stopTimestampThread();

    if (result != AAUDIO_OK) {

        disconnect_l();
@@ -342,9 +338,6 @@ aaudio_result_t AAudioServiceStreamBase::stop_l() { 


    setState(AAUDIO_STREAM_STATE_STOPPING);



    // Send it now because the timestamp gets rounded up when stopStream() is called below.

    // Also we don't need the timestamps while we are shutting down.

    sendCurrentTimestamp(); // warning - this calls a virtual function

    result = stopTimestampThread();

    if (result != AAUDIO_OK) {

        disconnect_l();
@@ -410,10 +403,11 @@ void AAudioServiceStreamBase::run() { 
    timestampScheduler.start(AudioClock::getNanoseconds());

    int64_t nextTime = timestampScheduler.nextAbsoluteTime();

    int32_t loopCount = 0;

    aaudio_result_t result = AAUDIO_OK;

    while(mThreadEnabled.load()) {

        loopCount++;

        if (AudioClock::getNanoseconds() >= nextTime) {

            aaudio_result_t result = sendCurrentTimestamp();

            result = sendCurrentTimestamp();

            if (result != AAUDIO_OK) {

                ALOGE("%s() timestamp thread got result = %d", __func__, result);

                break;
@@ -425,6 +419,11 @@ void AAudioServiceStreamBase::run() { 
            AudioClock::sleepUntilNanoTime(nextTime);

        }

    }

    // This was moved from the calls in stop_l() and pause_l(), which could cause a deadlock

    // if it resulted in a call to disconnect.

    if (result == AAUDIO_OK) {

        (void) sendCurrentTimestamp();

    }

    ALOGD("%s() %s exiting after %d loops <<<<<<<<<<<<<< TIMESTAMPS",

          __func__, getTypeText(), loopCount);

}