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 #include "heap_bitmap.h" 18 19 #include "gc/space/space.h" 20 21 namespace art { 22 namespace gc { 23 namespace accounting { 24 25 void HeapBitmap::ReplaceBitmap(SpaceBitmap* old_bitmap, SpaceBitmap* new_bitmap) { 26 for (auto& bitmap : continuous_space_bitmaps_) { 27 if (bitmap == old_bitmap) { 28 bitmap = new_bitmap; 29 return; 30 } 31 } 32 LOG(FATAL) << "bitmap " << static_cast<const void*>(old_bitmap) << " not found"; 33 } 34 35 void HeapBitmap::ReplaceObjectSet(SpaceSetMap* old_set, SpaceSetMap* new_set) { 36 for (auto& space_set : discontinuous_space_sets_) { 37 if (space_set == old_set) { 38 space_set = new_set; 39 return; 40 } 41 } 42 LOG(FATAL) << "object set " << static_cast<const void*>(old_set) << " not found"; 43 } 44 45 void HeapBitmap::AddContinuousSpaceBitmap(accounting::SpaceBitmap* bitmap) { 46 DCHECK(bitmap != NULL); 47 48 // Check for interval overlap. 49 for (const auto& cur_bitmap : continuous_space_bitmaps_) { 50 CHECK(!( 51 bitmap->HeapBegin() < cur_bitmap->HeapLimit() && 52 bitmap->HeapLimit() > cur_bitmap->HeapBegin())) 53 << "Bitmap " << bitmap->Dump() << " overlaps with existing bitmap " << cur_bitmap->Dump(); 54 } 55 continuous_space_bitmaps_.push_back(bitmap); 56 } 57 58 void HeapBitmap::AddDiscontinuousObjectSet(SpaceSetMap* set) { 59 DCHECK(set != NULL); 60 discontinuous_space_sets_.push_back(set); 61 } 62 63 void HeapBitmap::Walk(SpaceBitmap::Callback* callback, void* arg) { 64 for (const auto& bitmap : continuous_space_bitmaps_) { 65 bitmap->Walk(callback, arg); 66 } 67 68 DCHECK(!discontinuous_space_sets_.empty()); 69 for (const auto& space_set : discontinuous_space_sets_) { 70 space_set->Walk(callback, arg); 71 } 72 } 73 74 } // namespace accounting 75 } // namespace gc 76 } // namespace art 77
