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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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671 // | 671 // |
672 // BaseHeap is a parent class of NormalPageHeap and LargeObjectHeap. | 672 // BaseHeap is a parent class of NormalPageHeap and LargeObjectHeap. |
673 // NormalPageHeap represents a heap that contains NormalPages | 673 // NormalPageHeap represents a heap that contains NormalPages |
674 // and LargeObjectHeap represents a heap that contains LargeObjectPages. | 674 // and LargeObjectHeap represents a heap that contains LargeObjectPages. |
675 class PLATFORM_EXPORT BaseHeap { | 675 class PLATFORM_EXPORT BaseHeap { |
676 public: | 676 public: |
677 BaseHeap(ThreadState*, int); | 677 BaseHeap(ThreadState*, int); |
678 virtual ~BaseHeap(); | 678 virtual ~BaseHeap(); |
679 void cleanupPages(); | 679 void cleanupPages(); |
680 | 680 |
| 681 void takeSnapshot(const String& dumpBaseName); |
681 #if ENABLE(ASSERT) || ENABLE(GC_PROFILING) | 682 #if ENABLE(ASSERT) || ENABLE(GC_PROFILING) |
682 BasePage* findPageFromAddress(Address); | 683 BasePage* findPageFromAddress(Address); |
683 #endif | 684 #endif |
684 #if ENABLE(GC_PROFILING) | 685 #if ENABLE(GC_PROFILING) |
685 void snapshot(TracedValue*, ThreadState::SnapshotInfo*); | 686 void snapshot(TracedValue*, ThreadState::SnapshotInfo*); |
686 virtual void snapshotFreeList(TracedValue&) { }; | 687 virtual void snapshotFreeList(TracedValue&) { }; |
687 | 688 |
688 void countMarkedObjects(ClassAgeCountsMap&) const; | 689 void countMarkedObjects(ClassAgeCountsMap&) const; |
689 void countObjectsToSweep(ClassAgeCountsMap&) const; | 690 void countObjectsToSweep(ClassAgeCountsMap&) const; |
690 void incrementMarkedObjectsAge(); | 691 void incrementMarkedObjectsAge(); |
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1295 size_t copySize = previousHeader->payloadSize(); | 1296 size_t copySize = previousHeader->payloadSize(); |
1296 if (copySize > size) | 1297 if (copySize > size) |
1297 copySize = size; | 1298 copySize = size; |
1298 memcpy(address, previous, copySize); | 1299 memcpy(address, previous, copySize); |
1299 return address; | 1300 return address; |
1300 } | 1301 } |
1301 | 1302 |
1302 } // namespace blink | 1303 } // namespace blink |
1303 | 1304 |
1304 #endif // Heap_h | 1305 #endif // Heap_h |
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