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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include <iostream>
#include <memory>
#include <vector>
namespace armnn
{
class ProfilerImpl;
class BackendId;
class Instrument;
class Event;
class IProfiler
{
public:
/// Enables/disables profiling for this profiler.
/// @param [in] enableProfiling A flag that indicates whether profiling should be enabled or not.
void EnableProfiling(bool enableProfiling);
/// Checks whether profiling is enabled.
/// Profiling is disabled by default.
/// @return true if profiling is enabled, false otherwise.
bool IsProfilingEnabled();
/// Analyzes the tracked events and writes the results to the given output stream.
/// Please refer to the configuration variables in Profiling.cpp to customize the information written.
/// @param [out] outStream The stream where to write the profiling results to.
void AnalyzeEventsAndWriteResults(std::ostream& outStream) const;
/// Print stats for events in JSON Format to the given output stream.
/// @param [out] outStream The stream where to write the profiling results to.
void Print(std::ostream& outStream) const;
~IProfiler();
IProfiler();
private:
using InstrumentPtr = std::unique_ptr<Instrument>;
Event* BeginEvent(const BackendId& backendId,
const std::string& label,
std::vector<InstrumentPtr>&& instruments);
std::unique_ptr<ProfilerImpl> pProfilerImpl;
friend class ScopedProfilingEvent;
// Friend functions for unit testing, see ProfilerTests.cpp.
friend size_t GetProfilerEventSequenceSize(armnn::IProfiler* profiler);
};
} // namespace armnn
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