components/memory_system/initializer.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_MEMORY_SYSTEM_INITIALIZER_H_
#define COMPONENTS_MEMORY_SYSTEM_INITIALIZER_H_

#include <optional>
#include <string_view>

#include "components/memory_system/parameters.h"
#include "components/sampling_profiler/process_type.h"
#include "components/version_info/channel.h"

namespace memory_system {

class MemorySystem;

// A convenience class which allows different parts of the configuration being
// set in an expressive way and handing them over to the memory system upon
// initialization.
class Initializer {
 public:
  Initializer();
  ~Initializer();

  Initializer& SetGwpAsanParameters(bool boost_sampling,
                                    std::string_view process_type);
  Initializer& SetProfilingClientParameters(
      version_info::Channel channel,
      sampling_profiler::ProfilerProcessType process_type);
  Initializer& SetDispatcherParameters(
      DispatcherParameters::PoissonAllocationSamplerInclusion
          poisson_allocation_sampler_inclusion,
      DispatcherParameters::AllocationTraceRecorderInclusion
          allocation_trace_recorder_inclusion,
      std::string_view process_type);

  void Initialize(MemorySystem& memory_system) const;

 private:
  std::optional<GwpAsanParameters> gwp_asan_parameters_;
  std::optional<ProfilingClientParameters> profiling_client_parameters_;
  std::optional<DispatcherParameters> dispatcher_parameters_;
};

}  // namespace memory_system
#endif  // COMPONENTS_MEMORY_SYSTEM_INITIALIZER_H_