1 /** 2 * Copyright (c) 2021-2022 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 #ifndef PANDA_RUNTIME_MEM_GC_EPSILON_EPSILON_H 16 #define PANDA_RUNTIME_MEM_GC_EPSILON_EPSILON_H 17 18 #include "runtime/mem/gc/lang/gc_lang.h" 19 20 namespace panda::mem { 21 22 template <class LanguageConfig> 23 class EpsilonGC final : public GCLang<LanguageConfig> { 24 public: 25 explicit EpsilonGC(ObjectAllocatorBase *object_allocator, const GCSettings &settings); 26 27 NO_COPY_SEMANTIC(EpsilonGC); 28 NO_MOVE_SEMANTIC(EpsilonGC); 29 ~EpsilonGC() override = default; 30 31 void RunPhases(GCTask &task); 32 33 void WaitForGC(GCTask task) override; 34 35 void InitGCBits(panda::ObjectHeader *obj_header) override; 36 37 void InitGCBitsForAllocationInTLAB(panda::ObjectHeader *obj_header) override; 38 39 void Trigger() override; 40 41 private: 42 void MarkObject(ObjectHeader *object) override; 43 bool IsMarked(const ObjectHeader *object) const override; 44 void InitializeImpl() override; 45 void RunPhasesImpl(GCTask &task) override; 46 void MarkReferences(GCMarkingStackType *references, GCPhase gc_phase) override; 47 }; 48 49 } // namespace panda::mem 50 51 #endif // PANDA_RUNTIME_MEM_GC_EPSILON_EPSILON_H 52