06bf8261cf
TBR=rmcilroy@chromium.org,mstarzinger@chromium.org,verwaest@chromium.org Bug: v8:9247 Change-Id: I7ffc2bd4a5fdf7c20cc3283bb5545cbf9ffd4e53 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617254 Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#61609}
88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef HEAP_HEAP_UTILS_H_
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#define HEAP_HEAP_UTILS_H_
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#include "src/api/api-inl.h"
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#include "src/heap/heap.h"
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namespace v8 {
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namespace internal {
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namespace heap {
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class TemporaryEmbedderHeapTracerScope {
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public:
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TemporaryEmbedderHeapTracerScope(v8::Isolate* isolate,
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v8::EmbedderHeapTracer* tracer)
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: isolate_(isolate) {
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isolate_->SetEmbedderHeapTracer(tracer);
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}
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~TemporaryEmbedderHeapTracerScope() {
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isolate_->SetEmbedderHeapTracer(nullptr);
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}
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private:
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v8::Isolate* const isolate_;
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};
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void SealCurrentObjects(Heap* heap);
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int FixedArrayLenFromSize(int size);
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// Fill a page with fixed arrays leaving remainder behind. The function does
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// not create additional fillers and assumes that the space has just been
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// sealed.
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std::vector<Handle<FixedArray>> FillOldSpacePageWithFixedArrays(Heap* heap,
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int remainder);
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std::vector<Handle<FixedArray>> CreatePadding(
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Heap* heap, int padding_size, AllocationType allocation,
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int object_size = kMaxRegularHeapObjectSize);
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void AllocateAllButNBytes(
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v8::internal::NewSpace* space, int extra_bytes,
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std::vector<Handle<FixedArray>>* out_handles = nullptr);
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void FillCurrentPage(v8::internal::NewSpace* space,
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std::vector<Handle<FixedArray>>* out_handles = nullptr);
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// Helper function that simulates a full new-space in the heap.
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bool FillUpOnePage(v8::internal::NewSpace* space,
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std::vector<Handle<FixedArray>>* out_handles = nullptr);
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void SimulateFullSpace(v8::internal::NewSpace* space,
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std::vector<Handle<FixedArray>>* out_handles = nullptr);
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// Helper function that simulates many incremental marking steps until
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// marking is completed.
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void SimulateIncrementalMarking(i::Heap* heap, bool force_completion = true);
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// Helper function that simulates a full old-space in the heap.
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void SimulateFullSpace(v8::internal::PagedSpace* space);
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void AbandonCurrentlyFreeMemory(PagedSpace* space);
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void GcAndSweep(Heap* heap, AllocationSpace space);
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void ForceEvacuationCandidate(Page* page);
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void InvokeScavenge();
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void InvokeMarkSweep();
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template <typename GlobalOrPersistent>
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bool InYoungGeneration(v8::Isolate* isolate, const GlobalOrPersistent& global) {
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v8::HandleScope scope(isolate);
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auto tmp = global.Get(isolate);
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return i::Heap::InYoungGeneration(*v8::Utils::OpenHandle(*tmp));
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}
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} // namespace heap
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} // namespace internal
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} // namespace v8
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#endif // HEAP_HEAP_UTILS_H_
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