status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase)
{
- // remove the layer from the main list (through a transaction).
+ // First add the layer to the purgatory list, which makes sure it won't
+ // go away, then remove it from the main list (through a transaction).
ssize_t err = removeLayer_l(layerBase);
+ if (err >= 0) {
+ mLayerPurgatory.add(layerBase);
+ }
layerBase->onRemoved();
* to use the purgatory.
*/
status_t err = flinger->removeLayer_l(l);
+ if (err == NAME_NOT_FOUND) {
+ // The surface wasn't in the current list, which means it was
+ // removed already, which means it is in the purgatory,
+ // and need to be removed from there.
+ // This needs to happen from the main thread since its dtor
+ // must run from there (b/c of OpenGL ES). Additionally, we
+ // can't really acquire our internal lock from
+ // destroySurface() -- see postMessage() below.
+ ssize_t idx = flinger->mLayerPurgatory.remove(l);
+ LOGE_IF(idx < 0,
+ "layer=%p is not in the purgatory list", l.get());
+ }
+
LOGE_IF(err<0 && err != NAME_NOT_FOUND,
"error removing layer=%p (%s)", l.get(), strerror(-err));
return true;
volatile int32_t mTransactionFlags;
volatile int32_t mTransactionCount;
Condition mTransactionCV;
+ SortedVector< sp<LayerBase> > mLayerPurgatory;
bool mResizeTransationPending;
// protected by mStateLock (but we could use another lock)