89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_GC_ACCOUNTING_REMEMBERED_SET_H_
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#define ART_RUNTIME_GC_ACCOUNTING_REMEMBERED_SET_H_
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#include "base/allocator.h"
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#include "base/locks.h"
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#include "base/safe_map.h"
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#include "runtime_globals.h"
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#include <set>
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#include <vector>
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namespace art {
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namespace gc {
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namespace collector {
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class GarbageCollector;
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class MarkSweep;
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} // namespace collector
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namespace space {
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class ContinuousSpace;
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} // namespace space
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class Heap;
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namespace accounting {
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// The remembered set keeps track of cards that may contain references
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// from the free list spaces to the bump pointer spaces.
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class RememberedSet {
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public:
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using CardSet = std::set<uint8_t*,
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std::less<uint8_t*>,
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TrackingAllocator<uint8_t*, kAllocatorTagRememberedSet>>;
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explicit RememberedSet(const std::string& name, Heap* heap, space::ContinuousSpace* space)
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: name_(name), heap_(heap), space_(space) {}
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// Clear dirty cards and add them to the dirty card set.
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void ClearCards();
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// Mark through all references to the target space.
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void UpdateAndMarkReferences(space::ContinuousSpace* target_space,
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collector::GarbageCollector* collector)
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REQUIRES(Locks::heap_bitmap_lock_)
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REQUIRES_SHARED(Locks::mutator_lock_);
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void Dump(std::ostream& os);
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space::ContinuousSpace* GetSpace() {
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return space_;
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}
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Heap* GetHeap() const {
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return heap_;
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}
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const std::string& GetName() const {
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return name_;
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}
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void AssertAllDirtyCardsAreWithinSpace() const;
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private:
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const std::string name_;
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Heap* const heap_;
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space::ContinuousSpace* const space_;
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CardSet dirty_cards_;
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};
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} // namespace accounting
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} // namespace gc
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} // namespace art
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#endif // ART_RUNTIME_GC_ACCOUNTING_REMEMBERED_SET_H_
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