1 // Copyright 2016 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef HEAP_HEAP_UTILS_H_ 6 #define HEAP_HEAP_UTILS_H_ 7 8 #include "src/heap/heap.h" 9 10 namespace v8 { 11 namespace internal { 12 namespace heap { 13 14 void SealCurrentObjects(Heap* heap); 15 16 int FixedArrayLenFromSize(int size); 17 18 std::vector<Handle<FixedArray>> CreatePadding( 19 Heap* heap, int padding_size, PretenureFlag tenure, 20 int object_size = Page::kMaxRegularHeapObjectSize); 21 22 void AllocateAllButNBytes( 23 v8::internal::NewSpace* space, int extra_bytes, 24 std::vector<Handle<FixedArray>>* out_handles = nullptr); 25 26 void FillCurrentPage(v8::internal::NewSpace* space, 27 std::vector<Handle<FixedArray>>* out_handles = nullptr); 28 29 // Helper function that simulates a full new-space in the heap. 30 bool FillUpOnePage(v8::internal::NewSpace* space, 31 std::vector<Handle<FixedArray>>* out_handles = nullptr); 32 33 void SimulateFullSpace(v8::internal::NewSpace* space, 34 std::vector<Handle<FixedArray>>* out_handles = nullptr); 35 36 // Helper function that simulates many incremental marking steps until 37 // marking is completed. 38 void SimulateIncrementalMarking(i::Heap* heap, bool force_completion = true); 39 40 // Helper function that simulates a full old-space in the heap. 41 void SimulateFullSpace(v8::internal::PagedSpace* space); 42 43 void AbandonCurrentlyFreeMemory(PagedSpace* space); 44 45 void GcAndSweep(Heap* heap, AllocationSpace space); 46 47 } // namespace heap 48 } // namespace internal 49 } // namespace v8 50 51 #endif // HEAP_HEAP_UTILS_H_ 52