default-thread-isolated-allocator.h

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// Copyright 2023 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_LIBPLATFORM_DEFAULT_THREAD_ISOLATED_ALLOCATOR_H_
#define V8_LIBPLATFORM_DEFAULT_THREAD_ISOLATED_ALLOCATOR_H_
 
#include "include/libplatform/libplatform-export.h"
#include "include/v8-platform.h"
#include "src/base/build_config.h"
#include "src/base/platform/platform.h"
 
namespace v8 {
namespace platform {
 
class V8_PLATFORM_EXPORT DefaultThreadIsolatedAllocator
    : public NON_EXPORTED_BASE(ThreadIsolatedAllocator) {
 public:
  DefaultThreadIsolatedAllocator();
 
  ~DefaultThreadIsolatedAllocator() override;
 
  void* Allocate(size_t size) override;
 
  void Free(void* object) override;
 
  enum Type Type() const override;
 
  int Pkey() const override;
 
  bool Valid() const;
 
 private:
#if V8_HAS_PKU_JIT_WRITE_PROTECT
  const int pkey_;
#endif
};
 
}  // namespace platform
}  // namespace v8
 
#endif  // V8_LIBPLATFORM_DEFAULT_THREAD_ISOLATED_ALLOCATOR_H_