1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef DALVIK_ALLOC_WRITEBARRIER_H_ 18 #define DALVIK_ALLOC_WRITEBARRIER_H_ 19 20 /* 21 * Note writes to the heap. These functions must be called if a field 22 * of an Object in the heap changes, and before any GC safe-point. The 23 * call is not needed if NULL is stored in the field. 24 */ 25 26 /* 27 * The address within the Object has been written, and perhaps changed. 28 */ 29 INLINE void dvmWriteBarrierField(const Object *obj, void *addr) 30 { 31 dvmMarkCard(obj); 32 } 33 34 /* 35 * All of the Object may have changed. 36 */ 37 INLINE void dvmWriteBarrierObject(const Object *obj) 38 { 39 dvmMarkCard(obj); 40 } 41 42 /* 43 * Some or perhaps all of the array indexes in the Array, greater than 44 * or equal to start and strictly less than end, have been written, 45 * and perhaps changed. 46 */ 47 INLINE void dvmWriteBarrierArray(const ArrayObject *obj, 48 size_t start, size_t end) 49 { 50 dvmMarkCard((Object *)obj); 51 } 52 53 #endif // DALVIK_ALLOC_WRITEBARRIER_H_ 54
