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Timer.cpp
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Timer.cpp
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#include "Timer.h"
Timer::Timer(void) {
header = "";
ctimer = util::ClockTimer();
wtimer = util::WallTimer();
}
Timer::Timer(std::string const & _header) {
header = _header;
ctimer = util::ClockTimer();
wtimer = util::WallTimer();
}
void Timer::measure(std::string const & eventname) {
std::size_t abs_clocks = ctimer.get_elapsed();
std::size_t abs_milliseconds = wtimer.get_elapsed();
if(events.empty()) {
Event event = {eventname, abs_clocks, abs_milliseconds, abs_clocks, abs_milliseconds};
events.push_back(event);
} else {
Event last_event = events.back();
std::size_t rel_clocks = abs_clocks - last_event.abs_clocks;
std::size_t rel_milliseconds = abs_milliseconds - last_event.abs_milliseconds;
Event event = {eventname, abs_clocks, abs_milliseconds, rel_clocks, rel_milliseconds};
events.push_back(event);
}
}
void Timer::write_to_file(std::string const & filename) const {
std::ofstream out(filename.c_str());
if (!out.good())
throw util::FileException(filename, std::strerror(errno));
if(!header.empty())
out << "#" << header << std::endl;
out << "Event, Absolute clocks, Absolute milliseconds, Relative clocks, Relative milliseconds"
<< std::endl;
for (std::size_t i = 0; i < events.size(); ++i) {
Event event = events[i];
out << event.name << ", "
<< event.abs_clocks << ", "
<< event.abs_milliseconds << ", "
<< event.rel_clocks << ", "
<< event.rel_milliseconds << std::endl;
}
out.close();
}