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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_RUNTIME_GC_ACCOUNTING_REMEMBERED_SET_H_
#define ART_RUNTIME_GC_ACCOUNTING_REMEMBERED_SET_H_
#include "gc_allocator.h"
#include "globals.h"
#include "object_callbacks.h"
#include "safe_map.h"
#include <set>
#include <vector>
namespace art {
namespace gc {
namespace collector {
class MarkSweep;
} // namespace collector
namespace space {
class ContinuousSpace;
} // namespace space
class Heap;
namespace accounting {
// The remembered set keeps track of cards that may contain references
// from the free list spaces to the bump pointer spaces.
class RememberedSet {
public:
typedef std::set<byte*, std::less<byte*>, GcAllocator<byte*> > CardSet;
explicit RememberedSet(const std::string& name, Heap* heap, space::ContinuousSpace* space)
: name_(name), heap_(heap), space_(space) {}
// Clear dirty cards and add them to the dirty card set.
void ClearCards();
// Mark through all references to the target space.
void UpdateAndMarkReferences(MarkHeapReferenceCallback* callback,
DelayReferenceReferentCallback* ref_callback,
space::ContinuousSpace* target_space, void* arg)
EXCLUSIVE_LOCKS_REQUIRED(Locks::heap_bitmap_lock_)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void Dump(std::ostream& os);
space::ContinuousSpace* GetSpace() {
return space_;
}
Heap* GetHeap() const {
return heap_;
}
const std::string& GetName() const {
return name_;
}
void AssertAllDirtyCardsAreWithinSpace() const;
private:
const std::string name_;
Heap* const heap_;
space::ContinuousSpace* const space_;
CardSet dirty_cards_;
};
} // namespace accounting
} // namespace gc
} // namespace art
#endif // ART_RUNTIME_GC_ACCOUNTING_REMEMBERED_SET_H_
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