1 /* 2 * Copyright (C) 2012 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 ART_RUNTIME_GC_COLLECTOR_STICKY_MARK_SWEEP_H_ 18 #define ART_RUNTIME_GC_COLLECTOR_STICKY_MARK_SWEEP_H_ 19 20 #include "base/macros.h" 21 #include "partial_mark_sweep.h" 22 23 namespace art { 24 namespace gc { 25 namespace collector { 26 27 class StickyMarkSweep final : public PartialMarkSweep { 28 public: GetGcType()29 GcType GetGcType() const override { 30 return kGcTypeSticky; 31 } 32 33 StickyMarkSweep(Heap* heap, bool is_concurrent, const std::string& name_prefix = ""); ~StickyMarkSweep()34 ~StickyMarkSweep() {} 35 36 void MarkConcurrentRoots(VisitRootFlags flags) override 37 REQUIRES(Locks::heap_bitmap_lock_) 38 REQUIRES(!mark_stack_lock_) 39 REQUIRES_SHARED(Locks::mutator_lock_); 40 41 protected: 42 // Bind the live bits to the mark bits of bitmaps for all spaces, all spaces other than the 43 // alloc space will be marked as immune. 44 void BindBitmaps() override REQUIRES_SHARED(Locks::mutator_lock_); 45 46 void MarkReachableObjects() 47 override 48 REQUIRES(Locks::heap_bitmap_lock_) 49 REQUIRES_SHARED(Locks::mutator_lock_); 50 51 void Sweep(bool swap_bitmaps) 52 override 53 REQUIRES(Locks::heap_bitmap_lock_) 54 REQUIRES_SHARED(Locks::mutator_lock_); 55 56 private: 57 DISALLOW_IMPLICIT_CONSTRUCTORS(StickyMarkSweep); 58 }; 59 60 } // namespace collector 61 } // namespace gc 62 } // namespace art 63 64 #endif // ART_RUNTIME_GC_COLLECTOR_STICKY_MARK_SWEEP_H_ 65