Merge "audioflinger: async callback error handling" into nyc-mr1-dev (93540a6b) · Commits · e / os / android_frameworks_av

services/audioflinger/Threads.cpp

+32 −1

Original line number	Diff line number	Diff line
		@@ -2299,6 +2299,12 @@ void AudioFlinger::PlaybackThread::drainCallback()
		mCallbackThread->resetDraining();
		}

		void AudioFlinger::PlaybackThread::errorCallback()
		{
		ALOG_ASSERT(mCallbackThread != 0);
		mCallbackThread->setAsyncError();
		}

		void AudioFlinger::PlaybackThread::resetWriteBlocked(uint32_t sequence)
		{
		Mutex::Autolock _l(mLock);
		@@ -2333,6 +2339,9 @@ int AudioFlinger::PlaybackThread::asyncCallback(stream_callback_event_t event,
		case STREAM_CBK_EVENT_DRAIN_READY:
		me->drainCallback();
		break;
		case STREAM_CBK_EVENT_ERROR:
		me->errorCallback();
		break;
		default:
		ALOGW("asyncCallback() unknown event %d", event);
		break;
		@@ -3904,6 +3913,13 @@ void AudioFlinger::PlaybackThread::onAddNewTrack_l()
		broadcast_l();
		}

		void AudioFlinger::PlaybackThread::onAsyncError()
		{
		for (int i = AUDIO_STREAM_SYSTEM; i < (int)AUDIO_STREAM_CNT; i++) {
		invalidateTracks((audio_stream_type_t)i);
		}
		}

		void AudioFlinger::MixerThread::threadLoop_mix()
		{
		// mix buffers...
		@@ -5220,7 +5236,8 @@ AudioFlinger::AsyncCallbackThread::AsyncCallbackThread(
		: Thread(false /canCallJava/),
		mPlaybackThread(playbackThread),
		mWriteAckSequence(0),
		mDrainSequence(0)
		mDrainSequence(0),
		mAsyncError(false)
		{
		}

		@@ -5238,11 +5255,13 @@ bool AudioFlinger::AsyncCallbackThread::threadLoop()
		while (!exitPending()) {
		uint32_t writeAckSequence;
		uint32_t drainSequence;
		bool asyncError;

		{
		Mutex::Autolock _l(mLock);
		while (!((mWriteAckSequence & 1) \|\|
		(mDrainSequence & 1) \|\|
		mAsyncError \|\|
		exitPending())) {
		mWaitWorkCV.wait(mLock);
		}
		@@ -5256,6 +5275,8 @@ bool AudioFlinger::AsyncCallbackThread::threadLoop()
		mWriteAckSequence &= ~1;
		drainSequence = mDrainSequence;
		mDrainSequence &= ~1;
		asyncError = mAsyncError;
		mAsyncError = false;
		}
		{
		sp<AudioFlinger::PlaybackThread> playbackThread = mPlaybackThread.promote();
		@@ -5266,6 +5287,9 @@ bool AudioFlinger::AsyncCallbackThread::threadLoop()
		if (drainSequence & 1) {
		playbackThread->resetDraining(drainSequence >> 1);
		}
		if (asyncError) {
		playbackThread->onAsyncError();
		}
		}
		}
		}
		@@ -5314,6 +5338,13 @@ void AudioFlinger::AsyncCallbackThread::resetDraining()
		}
		}

		void AudioFlinger::AsyncCallbackThread::setAsyncError()
		{
		Mutex::Autolock _l(mLock);
		mAsyncError = true;
		mWaitWorkCV.signal();
		}


		// ----------------------------------------------------------------------------
		AudioFlinger::OffloadThread::OffloadThread(const sp<AudioFlinger>& audioFlinger,

services/audioflinger/Threads.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -543,6 +543,7 @@ protected:
		void resetWriteBlocked(uint32_t sequence);
		void drainCallback();
		void resetDraining(uint32_t sequence);
		void errorCallback();

		static int asyncCallback(stream_callback_event_t event, void param, void cookie);

		@@ -550,6 +551,7 @@ protected:
		virtual bool waitingAsyncCallback_l();
		virtual bool shouldStandby_l();
		virtual void onAddNewTrack_l();
		void onAsyncError(); // error reported by AsyncCallbackThread

		// ThreadBase virtuals
		virtual void preExit();
		@@ -1044,6 +1046,7 @@ public:
		void resetWriteBlocked();
		void setDraining(uint32_t sequence);
		void resetDraining();
		void setAsyncError();

		private:
		const wp<PlaybackThread> mPlaybackThread;
		@@ -1057,6 +1060,7 @@ private:
		uint32_t mDrainSequence;
		Condition mWaitWorkCV;
		Mutex mLock;
		bool mAsyncError;
		};

		class DuplicatingThread : public MixerThread {