commit d781137601c05b623305592fbbe7b2d7d69087dd
author Mathias Agopian <mathias@google.com> Thu May 19 18:03:31 2011 -0700
committer Alex Ray <aray@google.com> Tue Jul 30 13:56:56 2013 -0700
tree 88a065a261a10f9915618a003b03cf4c3a92ac4f
parent 23138b63df8788333f09a468cce36fd76d562577

RefBase subclasses can now decide how they want to be destroyed.

This adds a destroy() virtual on RefBase which
sublasses can implement. destroy() is called
in lieu of the destructor whenthe last strong
ref goes away.

libs/utils/RefBase.cpp

diff --git a/libs/utils/RefBase.cpp b/libs/utils/RefBase.cpp
index 2034486..9f55a71 100644
--- a/libs/utils/RefBase.cpp
+++ b/libs/utils/RefBase.cpp
@@ -345,6 +345,10 @@
     const_cast<RefBase*>(this)->onFirstRef();
 }
 
+void RefBase::destroy() const {
+    delete this;
+}
+
 void RefBase::decStrong(const void* id) const
 {
     weakref_impl* const refs = mRefs;
@@ -357,7 +361,7 @@
     if (c == 1) {
         const_cast<RefBase*>(this)->onLastStrongRef(id);
         if ((refs->mFlags&OBJECT_LIFETIME_WEAK) != OBJECT_LIFETIME_WEAK) {
-            delete this;
+            destroy();
         }
     }
     refs->decWeak(id);