/usr/include/mapnik/util/timer.hpp is in libmapnik-dev 3.0.12+ds-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2015 Artem Pavlenko
*
* This 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 2.1 of the License, or (at your option) any later version.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#ifndef MAPNIK_UTIL_TIMER_HPP
#define MAPNIK_UTIL_TIMER_HPP
#include <string>
#include <chrono>
namespace mapnik {
class auto_cpu_timer
{
public:
auto_cpu_timer(std::ostream & os, std::string const& message)
: start_(std::chrono::system_clock::now()),
os_(os),
message_(message) {}
~auto_cpu_timer()
{
std::chrono::duration<double,std::milli> elapsed = std::chrono::system_clock::now() - start_;
os_ << message_ << std::chrono::duration_cast<std::chrono::milliseconds>(elapsed).count() << " ms" << std::endl;
}
private:
std::chrono::time_point<std::chrono::system_clock> start_;
std::ostream & os_;
std::string message_;
};
// NOTE : add more timers here
}
#endif // MAPNIK_UTIL_TIMER_HPP
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