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      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:
     29   GcType GetGcType() const OVERRIDE {
     30     return kGcTypeSticky;
     31   }
     32 
     33   StickyMarkSweep(Heap* heap, bool is_concurrent, const std::string& name_prefix = "");
     34   ~StickyMarkSweep() {}
     35 
     36  protected:
     37   // Bind the live bits to the mark bits of bitmaps for all spaces, all spaces other than the
     38   // alloc space will be marked as immune.
     39   void BindBitmaps() OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_);
     40 
     41   void MarkReachableObjects()
     42       OVERRIDE
     43       REQUIRES(Locks::heap_bitmap_lock_)
     44       SHARED_REQUIRES(Locks::mutator_lock_);
     45 
     46   void Sweep(bool swap_bitmaps)
     47       OVERRIDE
     48       REQUIRES(Locks::heap_bitmap_lock_)
     49       SHARED_REQUIRES(Locks::mutator_lock_);
     50 
     51  private:
     52   DISALLOW_IMPLICIT_CONSTRUCTORS(StickyMarkSweep);
     53 };
     54 
     55 }  // namespace collector
     56 }  // namespace gc
     57 }  // namespace art
     58 
     59 #endif  // ART_RUNTIME_GC_COLLECTOR_STICKY_MARK_SWEEP_H_
     60