/*****************************************************************/
/*    NAME: Michael Benjamin                                     */
/*    ORGN: Dept of Mechanical Eng / CSAIL, MIT Cambridge MA     */
/*    FILE: MBTimer.h                                            */
/*    DATE: Too long ago to remember (1996-1999)                 */
/*                                                               */
/* This file is part of IvP Helm Core Libs                       */
/*                                                               */
/* IvP Helm Core Libs is free software: you can redistribute it  */
/* and/or modify it under the terms of the Lesser GNU General    */
/* Public License as published by the Free Software Foundation,  */
/* either version 3 of the License, or (at your option) any      */
/* later version.                                                */
/*                                                               */
/* IvP Helm Core Libs 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 Lesser GNU General Public License for more   */
/* details.                                                      */
/*                                                               */
/* You should have received a copy of the Lesser GNU General     */
/* Public License along with MOOS-IvP.  If not, see              */
/* <http://www.gnu.org/licenses/>.                               */
/*****************************************************************/

#ifndef MBTIMER_HEADER
#define MBTIMER_HEADER

#ifndef _WIN32
	#include <sys/times.h>
#else
	#include <time.h>
	#define tms time_t
#endif

class MBTimer {
public:
  MBTimer(int=0);
  ~MBTimer() {}

  void start();
  void stop();
  void reset(int=0);
  bool timeOutCheck();
  bool isTimedOut() { return(timedOut);}
  int  getMaxTime() { return(maxTime); }

  clock_t get_wall_time(int prec=1);
  clock_t get_user_cpu_time(int prec=1);
  clock_t get_system_cpu_time(int prec=1);
  clock_t get_cpu_time(int prec=1);

  float   get_float_wall_time() 
  { return((float) get_wall_time(1000)/1000); }
  float   get_float_cpu_time() 
  { return((float) get_cpu_time(1000)/1000); }
  float   get_float_user_cpu_time() 
  { return((float) get_user_cpu_time(1000)/1000); }
  float   get_float_system_cpu_time() 
  { return((float) get_system_cpu_time(1000)/1000); }

private:

#ifndef _WIN32
  struct tms b;
  clock_t wall_start_time;
  clock_t user_cpu_start_time;
  clock_t system_cpu_start_time;

  clock_t  total_wall_time;
  clock_t  total_user_cpu_time;
  clock_t  total_system_cpu_time;
#else
  clock_t  wall_start_time;
  clock_t user_cpu_start_time;
  clock_t system_cpu_start_time;

  clock_t total_wall_time;
  clock_t  total_user_cpu_time;
  clock_t  total_system_cpu_time;

#endif

  
  int   TCKS_PER_SEC;
  bool  turnedOn;
  bool  timedOut;
  int   maxTime;
};

#endif