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/*
* Copyright (C) 2012 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.
*/
#include "heap_bitmap.h"
#include "gc/accounting/space_bitmap-inl.h"
#include "gc/space/space.h"
namespace art {
namespace gc {
namespace accounting {
void HeapBitmap::ReplaceBitmap(ContinuousSpaceBitmap* old_bitmap,
ContinuousSpaceBitmap* new_bitmap) {
auto it = std::find(continuous_space_bitmaps_.begin(), continuous_space_bitmaps_.end(),
old_bitmap);
CHECK(it != continuous_space_bitmaps_.end()) << " continuous space bitmap " << old_bitmap
<< " not found";
*it = new_bitmap;
}
void HeapBitmap::ReplaceLargeObjectBitmap(LargeObjectBitmap* old_bitmap,
LargeObjectBitmap* new_bitmap) {
auto it = std::find(large_object_bitmaps_.begin(), large_object_bitmaps_.end(), old_bitmap);
CHECK(it != large_object_bitmaps_.end()) << " large object bitmap " << old_bitmap
<< " not found";
*it = new_bitmap;
}
void HeapBitmap::AddContinuousSpaceBitmap(accounting::ContinuousSpaceBitmap* bitmap) {
DCHECK(bitmap != nullptr);
// Check that there is no bitmap overlap.
for (const auto& cur_bitmap : continuous_space_bitmaps_) {
CHECK(bitmap->HeapBegin() >= cur_bitmap->HeapLimit() ||
bitmap->HeapLimit() <= cur_bitmap->HeapBegin())
<< "Bitmap " << bitmap->Dump() << " overlaps with existing bitmap "
<< cur_bitmap->Dump();
}
continuous_space_bitmaps_.push_back(bitmap);
}
void HeapBitmap::RemoveContinuousSpaceBitmap(accounting::ContinuousSpaceBitmap* bitmap) {
DCHECK(bitmap != nullptr);
auto it = std::find(continuous_space_bitmaps_.begin(), continuous_space_bitmaps_.end(), bitmap);
DCHECK(it != continuous_space_bitmaps_.end());
continuous_space_bitmaps_.erase(it);
}
void HeapBitmap::AddLargeObjectBitmap(LargeObjectBitmap* bitmap) {
DCHECK(bitmap != nullptr);
large_object_bitmaps_.push_back(bitmap);
}
void HeapBitmap::RemoveLargeObjectBitmap(LargeObjectBitmap* bitmap) {
DCHECK(bitmap != nullptr);
auto it = std::find(large_object_bitmaps_.begin(), large_object_bitmaps_.end(), bitmap);
DCHECK(it != large_object_bitmaps_.end());
large_object_bitmaps_.erase(it);
}
void HeapBitmap::Walk(ObjectCallback* callback, void* arg) {
for (const auto& bitmap : continuous_space_bitmaps_) {
bitmap->Walk(callback, arg);
}
for (const auto& bitmap : large_object_bitmaps_) {
bitmap->Walk(callback, arg);
}
}
} // namespace accounting
} // namespace gc
} // namespace art
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