am b21a4e3b: ConsumerBase: free buffers outside the lock (3ed2736c) · Commits · e / os / android_frameworks_native-old

libs/gui/ConsumerBase.cpp

+24 −10

Original line number	Diff line number	Diff line
		@@ -109,6 +109,9 @@ void ConsumerBase::onFrameAvailable() {
		}

		void ConsumerBase::onBuffersReleased() {
		sp<GraphicBuffer> bufRefs[BufferQueue::NUM_BUFFER_SLOTS];

		{ // Scope for the lock
		Mutex::Autolock lock(mMutex);

		CB_LOGV("onBuffersReleased");
		@@ -122,11 +125,22 @@ void ConsumerBase::onBuffersReleased() {
		mBufferQueue->getReleasedBuffers(&mask);
		for (int i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) {
		if (mask & (1 << i)) {
		// Grab a local reference to the buffers so that they don't
		// get freed while the lock is held.
		bufRefs[i] = mSlots[i].mGraphicBuffer;

		freeBufferLocked(i);
		}
		}
		}

		// Clear the local buffer references. This would happen automatically
		// when the array gets dtor'd, but I'm doing it explicitly for clarity.
		for (int i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) {
		bufRefs[i].clear();
		}
		}

		void ConsumerBase::abandon() {
		CB_LOGV("abandon");
		Mutex::Autolock lock(mMutex);