merge various SF fixes from gingerbread to honeycomb-mr2 (DO NOT MERGE)
Fix a race that could cause GL commands to be executed from the wrong thread.
RefBase subclasses can now decide how they want to be destroyed.
Fix a race in SurfaceFlinger that could cause layers to be leaked forever.
Fix a race-condtion in SurfaceFlinger that could lead to a crash.
initial cherry-pick:
resolved conflicts for merge of b9783b49 to honeycomb-plus-aosp
Change-Id: I2a335e03fff219e35c18a7b0089b3a11d636576f
diff --git a/include/utils/RefBase.h b/include/utils/RefBase.h
index f355087..e88cb29 100644
--- a/include/utils/RefBase.h
+++ b/include/utils/RefBase.h
@@ -120,7 +120,14 @@
protected:
RefBase();
virtual ~RefBase();
-
+
+ // called when the last reference goes away. this is responsible for
+ // calling the destructor. The default implementation just does
+ // "delete this;".
+ // Make sure to never acquire a strong reference from this function. The
+ // same restrictions than for destructors apply.
+ virtual void destroy() const;
+
//! Flags for extendObjectLifetime()
enum {
OBJECT_LIFETIME_WEAK = 0x0001,