src/commons/time.h

#ifndef COMMONS_TIME_H
#define COMMONS_TIME_H

#include <string>
#include <iostream>

#include <sys/time.h>
#include <time.h>

namespace commons
{

  using namespace std;

  inline long long
  current_time_millis()
  {
    long long t;
    struct timeval tv;

    gettimeofday(&tv, 0);

    t = tv.tv_sec;
    t = (t *1000) + (tv.tv_usec/1000);

    return t;
  }

  class timer
  {
  public:
    timer(const string label) :
      label(label), start(current_time_millis()), last(start) {}
    void print()
    {
      long long now = current_time_millis();
      cout << label << now - last << endl;
      last = now;
    }
  private:
    const string label;
    long long start, last;
  };

}

#endif

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