diff options
| author | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2020-10-12 14:27:29 +0200 |
|---|---|---|
| committer | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2020-10-13 09:35:20 +0000 |
| commit | c30a6232df03e1efbd9f3b226777b07e087a1122 (patch) | |
| tree | e992f45784689f373bcc38d1b79a239ebe17ee23 /chromium/v8/src/heap/cppgc/caged-heap.h | |
| parent | 7b5b123ac58f58ffde0f4f6e488bcd09aa4decd3 (diff) | |
BASELINE: Update Chromium to 85.0.4183.14085-based
Change-Id: Iaa42f4680837c57725b1344f108c0196741f6057
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Diffstat (limited to 'chromium/v8/src/heap/cppgc/caged-heap.h')
| -rw-r--r-- | chromium/v8/src/heap/cppgc/caged-heap.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/chromium/v8/src/heap/cppgc/caged-heap.h b/chromium/v8/src/heap/cppgc/caged-heap.h new file mode 100644 index 00000000000..7ac34624a0a --- /dev/null +++ b/chromium/v8/src/heap/cppgc/caged-heap.h @@ -0,0 +1,53 @@ +// Copyright 2020 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 V8_HEAP_CPPGC_CAGED_HEAP_H_ +#define V8_HEAP_CPPGC_CAGED_HEAP_H_ + +#include <memory> + +#include "include/cppgc/platform.h" +#include "src/base/bounded-page-allocator.h" +#include "src/heap/cppgc/globals.h" +#include "src/heap/cppgc/virtual-memory.h" + +namespace cppgc { +namespace internal { + +struct CagedHeapLocalData; +class HeapBase; + +class CagedHeap final { + public: + using AllocatorType = v8::base::BoundedPageAllocator; + + CagedHeap(HeapBase* heap, PageAllocator* platform_allocator); + + CagedHeap(const CagedHeap&) = delete; + CagedHeap& operator=(const CagedHeap&) = delete; + + AllocatorType& allocator() { return *bounded_allocator_; } + const AllocatorType& allocator() const { return *bounded_allocator_; } + + CagedHeapLocalData& local_data() { + return *static_cast<CagedHeapLocalData*>(reserved_area_.address()); + } + const CagedHeapLocalData& local_data() const { + return *static_cast<CagedHeapLocalData*>(reserved_area_.address()); + } + + static uintptr_t OffsetFromAddress(void* address) { + return reinterpret_cast<uintptr_t>(address) & + (kCagedHeapReservationAlignment - 1); + } + + private: + VirtualMemory reserved_area_; + std::unique_ptr<AllocatorType> bounded_allocator_; +}; + +} // namespace internal +} // namespace cppgc + +#endif // V8_HEAP_CPPGC_CAGED_HEAP_H_ |