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/* <!-- copyright */
/*
 * aria2 - a simple utility for downloading files faster
 *
 * Copyright (C) 2006 Tatsuhiro Tsujikawa
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
/* copyright --> */
#ifndef _D_TIME_H_
#define _D_TIME_H_

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

class Time {
private:
  struct timeval tv;

  struct timeval getCurrentTime() const;
public:
  // The time value is initialized so that it represents the time at which
  // this object was created.
  Time();
  Time(const Time& time);
  Time& operator=(const Time& time);

  ~Time();

  // Makes this object's time value up to date.
  void reset();

  bool elapsed(int sec) const;

  bool elapsedInMillis(int millis) const;

  int difference() const;
  long long int differenceInMillis() const;

  // Returns true if this object's time value is zero.
  bool isZero() const { return tv.tv_sec == 0 && tv.tv_usec == 0; }

  long long int getTimeInMicros() const {
    return (long long int)tv.tv_sec*1000*1000+tv.tv_usec;
  }

  long long int getTimeInMillis() const {
    return (long long int)tv.tv_sec*1000+tv.tv_usec/1000;
  }

  // Returns this object's time value in seconds.
  int getTime() const {
    return tv.tv_sec;
  }

  void setTimeInSec(int sec);

  bool isNewer(const Time& time) const;
};

#endif // _D_TIME_H_