chromium/components/gwp_asan/client/lightweight_detector/shared_state.h

// 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 COMPONENTS_GWP_ASAN_CLIENT_LIGHTWEIGHT_DETECTOR_SHARED_STATE_H_
#define COMPONENTS_GWP_ASAN_CLIENT_LIGHTWEIGHT_DETECTOR_SHARED_STATE_H_

#include <stdint.h>
#include <utility>

#include "base/check.h"
#include "base/compiler_specific.h"

namespace gwp_asan::internal::lud {

template <typename T>
class SharedState;

template <typename T>
class SharedStateHolder { … };

template <typename T>
bool SharedStateHolder<T>::initialized_ = …;

template <typename T>
alignas(T) uint8_t SharedStateHolder<T>::buffer_[sizeof(T)];

// Special purpose shared state type. Uses a static buffer to reduce the number
// of pointer dereferences, requires explicit initialization, and doesn't
// provide thread safety.
template <typename T>
class SharedState { … };

}  // namespace gwp_asan::internal::lud

#endif  // COMPONENTS_GWP_ASAN_CLIENT_LIGHTWEIGHT_DETECTOR_SHARED_STATE_H_