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// 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_PARAMETERS_H_
#define COMPONENTS_MEMORY_SYSTEM_PARAMETERS_H_
#include <string>
#include <string_view>
#include "components/sampling_profiler/process_type.h"
#include "components/version_info/channel.h"
namespace memory_system {
// Configuration objects for all memory subsystem components. The parameters are
// divided by component. The type of the data corresponds to the type used by
// the component. Therefore, the same data may appear multiple times and with
// varying signatures.
// GWP-ASan specific parameters, please see
// components/gwp_asan/client/gwp_asan.h for details.
struct GwpAsanParameters {
GwpAsanParameters(bool boost_sampling, std::string_view process_type);
bool boost_sampling;
std::string process_type;
};
// ProfilingClient specific parameters, please see
// components/heap_profiling/in_process/heap_profiler_controller.h for details.
struct ProfilingClientParameters {
ProfilingClientParameters(
version_info::Channel channel,
sampling_profiler::ProfilerProcessType process_type);
version_info::Channel channel;
sampling_profiler::ProfilerProcessType process_type;
};
// Dispatcher specific parameters, please see
// base/allocator/dispatcher/initializer.h for details.
struct DispatcherParameters {
// The way the dispatcher should include the PoissonAllocationSampler
enum class PoissonAllocationSamplerInclusion {
// Do not include.
kIgnore,
// Let the memory-system decide whether to include depending on whether
// another component (e.g. ProfilingClient) needs it.
kDynamic,
// Always include, even if no other component requires it. This is intended
// for cases where we do not know for sure if any client of
// PoissonAllocationSampler will become enabled in the course of the
// runtime.
//
// TODO(crbug.com/40062835): Clarify for which components we need to
// enforce PoissonAllocationSampler.
kEnforce,
};
// The way the dispatcher should include the AllocationTraceRecorder.
enum class AllocationTraceRecorderInclusion {
// Do not include.
kIgnore,
// Let the memory-system decide whether to include. The trace recorder is
// currently included if the CPU has MTE support.
kDynamic,
};
explicit DispatcherParameters(
PoissonAllocationSamplerInclusion poisson_allocation_sampler_inclusion,
AllocationTraceRecorderInclusion allocation_trace_recorder_inclusion,
std::string_view process_type);
PoissonAllocationSamplerInclusion poisson_allocation_sampler_inclusion;
AllocationTraceRecorderInclusion allocation_trace_recorder_inclusion;
std::string process_type;
};
} // namespace memory_system
#endif // COMPONENTS_MEMORY_SYSTEM_PARAMETERS_H_
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