src/profiling/ProfilingStateMachine.hpp

//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once

#include <atomic>

namespace armnn
{

namespace  profiling
{

enum class ProfilingState
{
    Uninitialised,
    NotConnected,
    WaitingForAck,
    Active
};

class ProfilingStateMachine
{
public:
    ProfilingStateMachine(): m_State(ProfilingState::Uninitialised) {};
    ProfilingStateMachine(ProfilingState state): m_State(state) {};

    ProfilingState GetCurrentState() const;
    void TransitionToState(ProfilingState newState);

    bool IsOneOfStates(ProfilingState state1)
    {
        return false;
    }

    template<typename T, typename... Args >
    bool IsOneOfStates(T state1, T state2, Args... args)
    {
        if (state1 == state2)
        {
            return true;
        }
        else
        {
            return IsOneOfStates(state1, args...);
        }
    }

private:
    std::atomic<ProfilingState> m_State;
};

constexpr char const* GetProfilingStateName(ProfilingState state)
{
    switch(state)
    {
        case ProfilingState::Uninitialised:       return "Uninitialised";
        case ProfilingState::NotConnected:        return "NotConnected";
        case ProfilingState::WaitingForAck:       return "WaitingForAck";
        case ProfilingState::Active:              return "Active";
        default:                                  return "Unknown";
    }
}

} //namespace profiling

} //namespace armnn