Timer.h
00001 /*************************************************************************** 00002 * Copyright (C) 2005 by Tarek Taha * 00003 * tataha@eng.uts.edu.au * 00004 * * 00005 * This program is free software; you can redistribute it and/or modify * 00006 * it under the terms of the GNU General Public License as published by * 00007 * the Free Software Foundation; either version 2 of the License, or * 00008 * (at your option) any later version. * 00009 * * 00010 * This program is distributed in the hope that it will be useful, * 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00013 * GNU General Public License for more details. * 00014 * * 00015 * You should have received a copy of the GNU General Public License * 00016 * along with this program; if not, write to the * 00017 * Free Software Foundation, Inc., * 00018 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * 00019 ***************************************************************************/ 00020 00021 #ifndef TIMER_H_ 00022 #define TIMER_H_ 00023 #include <sys/time.h> 00024 #include <iostream> 00025 class Timer 00026 { 00027 private: 00028 struct timeval start_time,end_time; 00029 double time_diff; 00030 public: 00031 Timer(); 00032 double TimeElapsed(); // time elapsed in usec since last call 00033 void Reset(); // resets timer 00034 virtual ~Timer(); 00035 /* Synchronize the loop within a period 00036 * To use this u will have to initialize the timer 00037 * reset the timer at the beginning of the loop 00038 * and call the Synch function at the end of the loop 00039 */ 00040 void Synch(double period); // period should be in msec 00041 }; 00042 00043 #endif /*TIMER_H_*/