c1bc70b711
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include <chrono>
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#include <iostream>
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#include <string>
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#include "BLI_sys_types.h"
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namespace blender::timeit {
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using Clock = std::chrono::steady_clock;
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using TimePoint = Clock::time_point;
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using Nanoseconds = std::chrono::nanoseconds;
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void print_duration(Nanoseconds duration);
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class ScopedTimer {
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private:
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std::string name_;
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TimePoint start_;
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public:
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ScopedTimer(std::string name) : name_(std::move(name))
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{
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start_ = Clock::now();
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}
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~ScopedTimer()
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{
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const TimePoint end = Clock::now();
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const Nanoseconds duration = end - start_;
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std::cout << "Timer '" << name_ << "' took ";
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print_duration(duration);
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std::cout << '\n';
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}
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};
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class ScopedTimerAveraged {
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private:
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std::string name_;
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TimePoint start_;
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int64_t &total_count_;
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Nanoseconds &total_time_;
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Nanoseconds &min_time_;
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public:
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ScopedTimerAveraged(std::string name,
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int64_t &total_count,
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Nanoseconds &total_time,
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Nanoseconds &min_time)
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: name_(std::move(name)),
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total_count_(total_count),
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total_time_(total_time),
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min_time_(min_time)
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{
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start_ = Clock::now();
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}
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~ScopedTimerAveraged();
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};
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} // namespace blender::timeit
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#define SCOPED_TIMER(name) blender::timeit::ScopedTimer scoped_timer(name)
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/**
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* Print the average and minimum runtime of the timer's scope.
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* \warning This uses static variables, so it is not thread-safe.
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*/
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#define SCOPED_TIMER_AVERAGED(name) \
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static int64_t total_count_; \
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static blender::timeit::Nanoseconds total_time_; \
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static blender::timeit::Nanoseconds min_time_ = blender::timeit::Nanoseconds::max(); \
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blender::timeit::ScopedTimerAveraged scoped_timer(name, total_count_, total_time_, min_time_)
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