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/***
This file is part of snapcast
Copyright (C) 2014-2021 Johannes Pohl
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#ifndef LOGGING_UTILS_HPP
#define LOGGING_UTILS_HPP
#include "common/aixlog.hpp"
#include <chrono>
namespace utils
{
namespace logging
{
using namespace std::chrono_literals;
/// Log Conditional to limit log frequency
struct TimeConditional : public AixLog::Conditional
{
/// c'tor
/// @param interval duration that must be passed since the last log line
TimeConditional(const std::chrono::milliseconds& interval) : interval_(interval)
{
reset();
}
/// return true for the next check
void reset()
{
last_time_ = std::chrono::steady_clock::now() - interval_ - 1s;
}
/// Change log interval
/// @param interval duration that must be passed since the last log line
void setInterval(const std::chrono::milliseconds& interval)
{
interval_ = interval;
}
/// check if the interval is passed
/// @return true if interval passed since the last log
bool is_true() const override
{
auto now = std::chrono::steady_clock::now();
if (now > last_time_ + interval_)
{
last_time_ = now;
return true;
}
return false;
}
private:
/// log interval
std::chrono::milliseconds interval_;
/// last log time
mutable std::chrono::steady_clock::time_point last_time_;
};
} // namespace logging
} // namespace utils
#endif
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