| // Copyright 2023 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef GIN_V8_PLATFORM_THREAD_ISOLATED_ALLOCATOR_H_ |
| #define GIN_V8_PLATFORM_THREAD_ISOLATED_ALLOCATOR_H_ |
| |
| #include "base/allocator/partition_allocator/src/partition_alloc/partition_alloc_buildflags.h" |
| |
| #if BUILDFLAG(ENABLE_THREAD_ISOLATION) |
| |
| #if !BUILDFLAG(ENABLE_PKEYS) |
| #error Not implemented for non-pkey thread isolation |
| #endif // BUILDFLAG(ENABLE_PKEYS) |
| |
| #include "base/allocator/partition_allocator/src/partition_alloc/partition_alloc.h" |
| #include "gin/gin_export.h" |
| #include "v8/include/v8-platform.h" |
| |
| namespace gin { |
| |
| // This is a wrapper around PartitionAlloc's ThreadIsolated pool that we pass to |
| // v8. |
| class GIN_EXPORT ThreadIsolatedAllocator final |
| : public v8::ThreadIsolatedAllocator { |
| public: |
| ThreadIsolatedAllocator(); |
| ~ThreadIsolatedAllocator() override; |
| |
| void Initialize(int pkey); |
| |
| void* Allocate(size_t size) override; |
| void Free(void* object) override; |
| enum Type Type() const override; |
| |
| int Pkey() const override; |
| |
| private: |
| partition_alloc::PartitionAllocator allocator_; |
| int pkey_ = -1; |
| }; |
| |
| } // namespace gin |
| |
| #endif // BUILDFLAG(ENABLE_THREAD_ISOLATION) |
| |
| #endif // GIN_V8_PLATFORM_THREAD_ISOLATED_ALLOCATOR_H_ |