FunctionTimer.hpp

/*
 * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
 *
 * This software is distributed under the terms of the GNU General Public
 * Licence version 3 (GPL Version 3). See file LICENSE for a full version of
 * the license.
 */
#pragma once

#include <chrono>
#include <utility>
#include <type_traits>

#include <corsika/framework/analytics/Timer.hpp>

namespace corsika {


  template <typename TFunc, class TTimer = Timer<std::chrono::high_resolution_clock,
                                                 std::chrono::microseconds>>
  class FunctionTimer : public TTimer {
    static_assert(
        is_timer_v<TTimer>,
        "TTimer is not a timer!"); // Better
                                   // https://en.cppreference.com/w/cpp/language/constraints
                                   // but not available in C++17
  public:
    FunctionTimer(TFunc f);

    template <typename... TArgs>
    auto operator()(TArgs&&... args) -> std::invoke_result_t<TFunc, TArgs...>;

  private:
    TFunc function_;
  };

} // namespace corsika

#include <corsika/detail/framework/analytics/FunctionTimer.inl>