chromium/components/gwp_asan/client/lightweight_detector/random_eviction_quarantine.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_RANDOM_EVICTION_QUARANTINE_H_
#define COMPONENTS_GWP_ASAN_CLIENT_LIGHTWEIGHT_DETECTOR_RANDOM_EVICTION_QUARANTINE_H_

#include <stddef.h>

#include <algorithm>
#include <atomic>
#include <new>
#include <vector>

#include "base/compiler_specific.h"
#include "base/functional/bind.h"
#include "base/rand_util.h"
#include "base/synchronization/lock.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "base/thread_annotations.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "components/gwp_asan/client/export.h"
#include "components/gwp_asan/client/gwp_asan.h"
#include "components/gwp_asan/client/lightweight_detector/malloc_shims.h"
#include "components/gwp_asan/client/lightweight_detector/poison_metadata_recorder.h"
#include "components/gwp_asan/client/lightweight_detector/shared_state.h"

namespace gwp_asan::internal::lud {

// `RandomEvictionQuarantine` is a quarantine mechanism for memory
// allocations. It works by replacing random allocations with new ones when
// adding to the quarantine.
class GWP_ASAN_EXPORT RandomEvictionQuarantineBase { … };

class GWP_ASAN_EXPORT RandomEvictionQuarantine final
    : public RandomEvictionQuarantineBase,
      public SharedState<RandomEvictionQuarantine> { … };

extern template class SharedState<RandomEvictionQuarantine>;

}  // namespace gwp_asan::internal::lud

#endif  // COMPONENTS_GWP_ASAN_CLIENT_LIGHTWEIGHT_DETECTOR_RANDOM_EVICTION_QUARANTINE_H_