chromium/gin/v8_platform_thread_isolated_allocator.cc

// 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.

#include "gin/v8_platform_thread_isolated_allocator.h"

#include "partition_alloc/partition_alloc_constants.h"
#include "partition_alloc/partition_root.h"

#if PA_BUILDFLAG(ENABLE_THREAD_ISOLATION)

#include <sys/mman.h>
#include <sys/syscall.h>

#include "gin/thread_isolation.h"
#include "partition_alloc/thread_isolation/pkey.h"

#if PA_BUILDFLAG(ENABLE_PKEYS)
#else  // PA_BUILDFLAG(ENABLE_PKEYS)
#error Not implemented for non-pkey thread isolation
#endif  // PA_BUILDFLAG(ENABLE_PKEYS)

namespace gin {

ThreadIsolatedAllocator::ThreadIsolatedAllocator() = default;
ThreadIsolatedAllocator::~ThreadIsolatedAllocator() = default;

void ThreadIsolatedAllocator::Initialize(int pkey) { … }

void* ThreadIsolatedAllocator::Allocate(size_t size) { … }

void ThreadIsolatedAllocator::Free(void* object) { … }

enum ThreadIsolatedAllocator::Type ThreadIsolatedAllocator::Type() const { … }

int ThreadIsolatedAllocator::Pkey() const { … }

}  // namespace gin

#endif  // PA_BUILDFLAG(ENABLE_THREAD_ISOLATION)