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ton/tdutils/td/utils/Timer.h
2024-11-26 21:41:12 +04:00

124 lines
3.1 KiB
C++

/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2020 Telegram Systems LLP
*/
#pragma once
#include "td/utils/StringBuilder.h"
#include "td/utils/Status.h"
#include <functional>
namespace td {
class Timer {
public:
Timer() : Timer(false) {
}
explicit Timer(bool is_paused);
Timer(const Timer &other) = default;
Timer &operator=(const Timer &other) = default;
double elapsed() const;
void pause();
void resume();
private:
friend StringBuilder &operator<<(StringBuilder &string_builder, const Timer &timer);
double elapsed_{0};
double start_time_;
bool is_paused_{false};
};
class PerfWarningTimer {
public:
explicit PerfWarningTimer(string name, double max_duration = 0.1, std::function<void(double)> &&callback = {});
PerfWarningTimer(const PerfWarningTimer &) = delete;
PerfWarningTimer &operator=(const PerfWarningTimer &) = delete;
PerfWarningTimer(PerfWarningTimer &&other);
PerfWarningTimer &operator=(PerfWarningTimer &&) = delete;
~PerfWarningTimer();
void reset();
double elapsed() const;
private:
string name_;
double start_at_{0};
double max_duration_{0};
std::function<void(double)> callback_;
};
class ThreadCpuTimer {
public:
ThreadCpuTimer() : ThreadCpuTimer(false) {
}
explicit ThreadCpuTimer(bool is_paused);
ThreadCpuTimer(const ThreadCpuTimer &other) = default;
ThreadCpuTimer &operator=(const ThreadCpuTimer &other) = default;
double elapsed() const;
void pause();
void resume();
private:
double elapsed_{0};
double start_time_;
bool is_paused_{false};
};
class PerfLog;
struct EmptyDeleter {
template <class T>
void operator()(T *) {
}
};
class PerfLogAction {
public:
template <class T>
double finish(const T &result);
size_t i_{0};
std::unique_ptr<PerfLog, EmptyDeleter> perf_log_;
};
class PerfLog {
public:
PerfLogAction start_action(std::string name);
friend td::StringBuilder &operator<<(td::StringBuilder &sb, const PerfLog &log);
private:
struct Entry {
std::string name;
double begin{};
double end{};
td::Status status;
};
std::vector<Entry> entries_;
friend class PerfLogAction;
double finish_action(size_t i, td::Status status);
};
template <class T>
double PerfLogAction::finish(const T &result) {
if (result.is_ok()) {
return perf_log_->finish_action(i_, td::Status::OK());
} else {
return perf_log_->finish_action(i_, result.error().clone());
}
}
} // namespace td