timer.h

Go to the documentation of this file.

#pragma once
 
#include <chrono>
#include <string>
 
#include "assert.h"
#include "exception.h"
 
namespace kuzu {
namespace common {
 
class Timer {
 
public:
 void start() {
 finished = false;
 startTime = std::chrono::high_resolution_clock::now();
 }
 
 void stop() {
 stopTime = std::chrono::high_resolution_clock::now();
 finished = true;
 }
 
 double getDuration() const {
 if (finished) {
 auto duration = stopTime - startTime;
 return (double)std::chrono::duration_cast<std::chrono::microseconds>(duration).count();
 }
 throw Exception("Timer is still running.");
 }
 
 uint64_t getElapsedTimeInMS() const {
 auto now = std::chrono::high_resolution_clock::now();
 auto duration = now - startTime;
 auto count = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count();
 KU_ASSERT(count >= 0);
 return count;
 }
 
private:
 std::chrono::time_point<std::chrono::high_resolution_clock> startTime;
 std::chrono::time_point<std::chrono::high_resolution_clock> stopTime;
 bool finished = false;
};
 
} // namespace common
} // namespace kuzu