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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/space/space.h"
namespace art {
namespace gc {
namespace accounting {
void HeapBitmap::ReplaceBitmap(SpaceBitmap* old_bitmap, SpaceBitmap* new_bitmap) {
for (auto& bitmap : continuous_space_bitmaps_) {
if (bitmap == old_bitmap) {
bitmap = new_bitmap;
return;
}
}
LOG(FATAL) << "bitmap " << static_cast<const void*>(old_bitmap) << " not found";
}
void HeapBitmap::ReplaceObjectSet(ObjectSet* old_set, ObjectSet* new_set) {
for (auto& space_set : discontinuous_space_sets_) {
if (space_set == old_set) {
space_set = new_set;
return;
}
}
LOG(FATAL) << "object set " << static_cast<const void*>(old_set) << " not found";
}
void HeapBitmap::AddContinuousSpaceBitmap(accounting::SpaceBitmap* bitmap) {
DCHECK(bitmap != NULL);
// Check for interval 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::SpaceBitmap* bitmap) {
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::AddDiscontinuousObjectSet(ObjectSet* set) {
DCHECK(set != NULL);
discontinuous_space_sets_.push_back(set);
}
void HeapBitmap::RemoveDiscontinuousObjectSet(ObjectSet* set) {
auto it = std::find(discontinuous_space_sets_.begin(), discontinuous_space_sets_.end(), set);
DCHECK(it != discontinuous_space_sets_.end());
discontinuous_space_sets_.erase(it);
}
void HeapBitmap::Walk(ObjectCallback* callback, void* arg) {
for (const auto& bitmap : continuous_space_bitmaps_) {
bitmap->Walk(callback, arg);
}
for (const auto& space_set : discontinuous_space_sets_) {
space_set->Walk(callback, arg);
}
}
} // namespace accounting
} // namespace gc
} // namespace art
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