1 /* 2 * Copyright (c) 2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include "common_components/mutator/satb_buffer.h" 17 #include "common_components/heap/allocator/region_space.h" 18 19 #include "common_components/base/immortal_wrapper.h" 20 21 namespace common { 22 static ImmortalWrapper<SatbBuffer> g_instance; 23 Instance()24SatbBuffer& SatbBuffer::Instance() noexcept { return *g_instance; } 25 ShouldEnqueue(const BaseObject * obj)26bool SatbBuffer::ShouldEnqueue(const BaseObject* obj) 27 { 28 if (UNLIKELY_CC(obj == nullptr)) { 29 return false; 30 } 31 if (Heap::GetHeap().GetGCReason() == GC_REASON_YOUNG && !RegionSpace::IsYoungSpaceObject(obj)) { 32 return false; 33 } 34 if (RegionSpace::IsNewObjectSinceMarking(obj)) { 35 return false; 36 } 37 if (RegionSpace::IsMarkedObject(obj)) { 38 return false; 39 } 40 return !RegionSpace::EnqueueObject(obj); 41 } 42 } // namespace common 43