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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
//
// 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)
//
#include "td/utils/Timer.h"
#include "td/utils/format.h"
#include "td/utils/logging.h"
#include "td/utils/Time.h"
namespace td {
Timer::Timer(bool is_paused) {
if (!is_paused) {
resume();
}
}
void Timer::pause() {
if (is_paused_) {
return;
}
elapsed_ += Time::now() - start_time_;
is_paused_ = true;
}
void Timer::resume() {
if (!is_paused_) {
return;
}
start_time_ = Time::now();
is_paused_ = false;
}
double Timer::elapsed() const {
double res = elapsed_;
if (!is_paused_) {
res += Time::now() - start_time_;
}
return res;
}
StringBuilder &operator<<(StringBuilder &string_builder, const Timer &timer) {
return string_builder << " in " << format::as_time(timer.elapsed());
}
PerfWarningTimer::PerfWarningTimer(string name, double max_duration)
: name_(std::move(name)), start_at_(Time::now()), max_duration_(max_duration) {
}
PerfWarningTimer::PerfWarningTimer(PerfWarningTimer &&other) noexcept
: name_(std::move(other.name_)), start_at_(other.start_at_), max_duration_(other.max_duration_) {
other.start_at_ = 0;
}
PerfWarningTimer::~PerfWarningTimer() {
reset();
}
void PerfWarningTimer::reset() {
if (start_at_ == 0) {
return;
}
double duration = Time::now() - start_at_;
LOG_IF(WARNING, duration > max_duration_)
<< "SLOW: " << tag("name", name_) << tag("duration", format::as_time(duration));
start_at_ = 0;
}
} // namespace td
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