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Commit 1ce7c1d3 authored by Dan Stoza's avatar Dan Stoza Committed by android-build-merger
Browse files

SF: Fix a couple of Layer ref count issues 

am: de84eb6b

Change-Id: I779b869d340ce5320f7924ccd6579cada3227899
parents 58719ff7 de84eb6b

services/surfaceflinger/Client.cpp

+1 −4
Original line number Diff line number Diff line
@@ -43,10 +43,7 @@ Client::~Client() 
{

    const size_t count = mLayers.size();

    for (size_t i=0 ; i<count ; i++) {

        sp<Layer> layer(mLayers.valueAt(i).promote());

        if (layer != 0) {

            mFlinger->removeLayer(layer);

        }

        mFlinger->removeLayer(mLayers.valueAt(i));

    }

}

services/surfaceflinger/Layer.cpp

+8 −3
Original line number Diff line number Diff line
@@ -1289,9 +1289,14 @@ void Layer::pushPendingState() { 
    // If this transaction is waiting on the receipt of a frame, generate a sync

    // point and send it to the remote layer.

    if (mCurrentState.handle != nullptr) {

        sp<Handle> handle = static_cast<Handle*>(mCurrentState.handle.get());

        sp<Layer> handleLayer = handle->owner.promote();

        if (handleLayer == nullptr) {

        sp<IBinder> strongBinder = mCurrentState.handle.promote();

        sp<Handle> handle = nullptr;

        sp<Layer> handleLayer = nullptr;

        if (strongBinder != nullptr) {

            handle = static_cast<Handle*>(strongBinder.get());

            handleLayer = handle->owner.promote();

        }

        if (strongBinder == nullptr || handleLayer == nullptr) {

            ALOGE("[%s] Unable to promote Layer handle", mName.string());

            // If we can't promote the layer we are intended to wait on,

            // then it is expired or otherwise invalid. Allow this transaction

services/surfaceflinger/Layer.h

+1 −1
Original line number Diff line number Diff line
@@ -124,7 +124,7 @@ public: 


        // If set, defers this state update until the Layer identified by handle

        // receives a frame with the given frameNumber

        sp<IBinder> handle;

        wp<IBinder> handle;

        uint64_t frameNumber;



        // the transparentRegion hint is a bit special, it's latched only

services/surfaceflinger/SurfaceFlinger.cpp

+8 −9
Original line number Diff line number Diff line
@@ -2106,8 +2106,14 @@ status_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 
    return NO_ERROR;

}



status_t SurfaceFlinger::removeLayer(const sp<Layer>& layer) {

status_t SurfaceFlinger::removeLayer(const wp<Layer>& weakLayer) {

    Mutex::Autolock _l(mStateLock);

    sp<Layer> layer = weakLayer.promote();

    if (layer == nullptr) {

        // The layer has already been removed, carry on

        return NO_ERROR;

    }



    ssize_t index = mCurrentState.layersSortedByZ.remove(layer);

    if (index >= 0) {

        mLayersPendingRemoval.push(layer);
@@ -2448,14 +2454,7 @@ status_t SurfaceFlinger::onLayerDestroyed(const wp<Layer>& layer) 
{

    // called by ~LayerCleaner() when all references to the IBinder (handle)

    // are gone

    status_t err = NO_ERROR;

    sp<Layer> l(layer.promote());

    if (l != NULL) {

        err = removeLayer(l);

        ALOGE_IF(err<0 && err != NAME_NOT_FOUND,

                "error removing layer=%p (%s)", l.get(), strerror(-err));

    }

    return err;

    return removeLayer(layer);

}



// ---------------------------------------------------------------------------

services/surfaceflinger/SurfaceFlinger.h

+1 −1
Original line number Diff line number Diff line
@@ -311,7 +311,7 @@ private: 
    status_t onLayerDestroyed(const wp<Layer>& layer);



    // remove a layer from SurfaceFlinger immediately

    status_t removeLayer(const sp<Layer>& layer);

    status_t removeLayer(const wp<Layer>& layer);



    // add a layer to SurfaceFlinger

    status_t addClientLayer(const sp<Client>& client,