Move WriteBarrier operations into their own header file. Split Object.h
The write barrier routines will soon be INLINE and non-null. Buried
in the middle of Object.h, which is early in Dalvik.h, it would be
hard for them to make use of definitions in other .h files.
Change-Id: I3c0eb59cb6ef29c2bacd0432cf59aaca4c3d031c
diff --git a/vm/alloc/WriteBarrier.h b/vm/alloc/WriteBarrier.h
new file mode 100644
index 0000000..fef993e
--- /dev/null
+++ b/vm/alloc/WriteBarrier.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Note writes to the heap. These functions must be called if a field
+ * of an Object in the heap changes, and before any GC safe-point. The
+ * call is not needed if NULL is stored in the field.
+ */
+
+/*
+ * The address within the Object has been written, and perhaps changed.
+ */
+INLINE void dvmWriteBarrierField(const Object *obj, void *addr) {
+}
+
+/*
+ * All of the Object may have changed.
+ */
+INLINE void dvmWriteBarrierObject(const Object *obj) {
+}
+
+/*
+ * Some or perhaps all of the array indexes in the Array, greater than
+ * or equal to start and strictly less than end, have been written,
+ * and perhaps changed.
+ */
+INLINE void dvmWriteBarrierArray(const ArrayObject* obj,
+ size_t start, size_t end) {
+}