You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.2 KiB
72 lines
2.2 KiB
/*
|
|
* Created by Joachim on 16/04/2019.
|
|
* Adapted from donated nonius code.
|
|
*
|
|
* Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
*/
|
|
|
|
// User-facing chronometer
|
|
|
|
#ifndef TWOBLUECUBES_CATCH_CHRONOMETER_HPP_INCLUDED
|
|
#define TWOBLUECUBES_CATCH_CHRONOMETER_HPP_INCLUDED
|
|
|
|
#include "catch_clock.hpp"
|
|
#include "catch_optimizer.hpp"
|
|
#include "detail/catch_complete_invoke.hpp"
|
|
#include "../catch_meta.hpp"
|
|
|
|
namespace Catch {
|
|
namespace Benchmark {
|
|
namespace Detail {
|
|
struct ChronometerConcept {
|
|
virtual void start() = 0;
|
|
virtual void finish() = 0;
|
|
virtual ~ChronometerConcept() = default;
|
|
};
|
|
template <typename Clock>
|
|
struct ChronometerModel final : public ChronometerConcept {
|
|
void start() override { started = Clock::now(); }
|
|
void finish() override { finished = Clock::now(); }
|
|
|
|
ClockDuration<Clock> elapsed() const { return finished - started; }
|
|
|
|
TimePoint<Clock> started;
|
|
TimePoint<Clock> finished;
|
|
};
|
|
} // namespace Detail
|
|
|
|
struct Chronometer {
|
|
public:
|
|
template <typename Fun>
|
|
void measure(Fun&& fun) { measure(std::forward<Fun>(fun), is_callable<Fun(int)>()); }
|
|
|
|
int runs() const { return k; }
|
|
|
|
Chronometer(Detail::ChronometerConcept& meter, int k)
|
|
: impl(&meter)
|
|
, k(k) {}
|
|
|
|
private:
|
|
template <typename Fun>
|
|
void measure(Fun&& fun, std::false_type) {
|
|
measure([&fun](int) { return fun(); }, std::true_type());
|
|
}
|
|
|
|
template <typename Fun>
|
|
void measure(Fun&& fun, std::true_type) {
|
|
Detail::optimizer_barrier();
|
|
impl->start();
|
|
for (int i = 0; i < k; ++i) invoke_deoptimized(fun, i);
|
|
impl->finish();
|
|
Detail::optimizer_barrier();
|
|
}
|
|
|
|
Detail::ChronometerConcept* impl;
|
|
int k;
|
|
};
|
|
} // namespace Benchmark
|
|
} // namespace Catch
|
|
|
|
#endif // TWOBLUECUBES_CATCH_CHRONOMETER_HPP_INCLUDED
|