| // Copyright 2016 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef HEAP_HEAP_UTILS_H_ |
| #define HEAP_HEAP_UTILS_H_ |
| |
| #include "src/heap/heap.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace heap { |
| |
| void SealCurrentObjects(Heap* heap); |
| |
| int FixedArrayLenFromSize(int size); |
| |
| // Fill a page with fixed arrays leaving remainder behind. The function does |
| // not create additional fillers and assumes that the space has just been |
| // sealed. |
| std::vector<Handle<FixedArray>> FillOldSpacePageWithFixedArrays(Heap* heap, |
| int remainder); |
| |
| std::vector<Handle<FixedArray>> CreatePadding( |
| Heap* heap, int padding_size, PretenureFlag tenure, |
| int object_size = kMaxRegularHeapObjectSize); |
| |
| void AllocateAllButNBytes( |
| v8::internal::NewSpace* space, int extra_bytes, |
| std::vector<Handle<FixedArray>>* out_handles = nullptr); |
| |
| void FillCurrentPage(v8::internal::NewSpace* space, |
| std::vector<Handle<FixedArray>>* out_handles = nullptr); |
| |
| // Helper function that simulates a full new-space in the heap. |
| bool FillUpOnePage(v8::internal::NewSpace* space, |
| std::vector<Handle<FixedArray>>* out_handles = nullptr); |
| |
| void SimulateFullSpace(v8::internal::NewSpace* space, |
| std::vector<Handle<FixedArray>>* out_handles = nullptr); |
| |
| // Helper function that simulates many incremental marking steps until |
| // marking is completed. |
| void SimulateIncrementalMarking(i::Heap* heap, bool force_completion = true); |
| |
| // Helper function that simulates a full old-space in the heap. |
| void SimulateFullSpace(v8::internal::PagedSpace* space); |
| |
| void AbandonCurrentlyFreeMemory(PagedSpace* space); |
| |
| void GcAndSweep(Heap* heap, AllocationSpace space); |
| |
| void ForceEvacuationCandidate(Page* page); |
| |
| } // namespace heap |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // HEAP_HEAP_UTILS_H_ |