Subversion Repositories gelsvn

Rev

Rev 448 | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 448 Rev 595
- 
 
 1 
/* ----------------------------------------------------------------------- *
- 
 
 2 
 * This file is part of GEL, http://www.imm.dtu.dk/GEL
- 
 
 3 
 * Copyright (C) the authors and DTU Informatics
- 
 
 4 
 * For license and list of authors, see ../../doc/intro.pdf
- 
 
 5 
 * ----------------------------------------------------------------------- */
- 
 
 6 
 
- 
 
 7 
/**
- 
 
 8 
 * @file Timer.h
- 
 
 9 
 * @brief Wall clock timing.
- 
 
 10 
 */
- 
 
 11 
 
1 
#ifndef __UTIL_OSTIMER_H__
 12 
#ifndef __UTIL_OSTIMER_H__
2 
#define __UTIL_OSTIMER_H__
 13 
#define __UTIL_OSTIMER_H__
3 
 
 14 
 
4 
// Created by bdl 5. april 2002
 15 
// Created by bdl 5. april 2002
5 
// The purpose of this file is to make a timer function that is as
16 
// The purpose of this file is to make a timer function that is as
6 
// precise as posible on any given platform
 17 
// precise as posible on any given platform
7 
#if (_MSC_VER >= 1200)
 18 
#if (_MSC_VER >= 1200)
8 
#pragma warning (disable: 4244)
 19 
#pragma warning (disable: 4244)
9 
#endif
 20 
#endif
10 
#ifdef WIN32
 21 
#ifdef WIN32
11 
#include <windows.h>
 22 
#include <windows.h>
12 
static LARGE_INTEGER	largeInteger;
 23 
static LARGE_INTEGER	largeInteger;
13 
#else
 24 
#else
14 
#include <sys/time.h>
 25 
#include <sys/time.h>
15 
#endif
 26 
#endif
16 
 
 27 
 
17 
namespace Util{
 28 
namespace Util{
18 
	class Timer {
 29 
	class Timer {
19 
#ifdef WIN32
 30 
#ifdef WIN32
20 
		double freq;
 31 
		double freq;
21 
		double start_count;
 32 
		double start_count;
22 
#else
 33 
#else
23 
		timeval start_time;
 34 
		timeval start_time;
24 
#endif
 35 
#endif
25 
	public:
 36 
	public:
26 
		void start() {
 37 
		void start() {
27 
#ifdef WIN32
 38 
#ifdef WIN32
28 
			QueryPerformanceFrequency(&largeInteger);
 39 
			QueryPerformanceFrequency(&largeInteger);
29 
			freq = largeInteger.QuadPart;
 40 
			freq = largeInteger.QuadPart;
30 
			QueryPerformanceCounter(&largeInteger);
 41 
			QueryPerformanceCounter(&largeInteger);
31 
			start_count = largeInteger.QuadPart;
 42 
			start_count = largeInteger.QuadPart;
32 
#else
 43 
#else
33 
			gettimeofday(&start_time,0);
 44 
			gettimeofday(&start_time,0);
34 
#endif
 45 
#endif
35 
		}
 46 
		}
36 
 
 47 
 
37 
		float get_secs() {
 48 
		float get_secs() {
38 
#ifdef WIN32
 49 
#ifdef WIN32
39 
			QueryPerformanceCounter(&largeInteger);
 50 
			QueryPerformanceCounter(&largeInteger);
40 
			double now_count = largeInteger.QuadPart;
 51 
			double now_count = largeInteger.QuadPart;
41 
			return (float)((now_count-start_count)/freq);
 52 
			return (float)((now_count-start_count)/freq);
42 
#else
 53 
#else
43 
			timeval now;
 54 
			timeval now;
44 
			gettimeofday(&now,0);
 55 
			gettimeofday(&now,0);
45 
			return (now.tv_sec-start_time.tv_sec) +
56 
			return (now.tv_sec-start_time.tv_sec) +
46 
				(now.tv_usec-start_time.tv_usec)/1.0e6;
 57 
				(now.tv_usec-start_time.tv_usec)/1.0e6;
47 
#endif
 58 
#endif
48 
		}
 59 
		}
49 
	};
 60 
	};
50 
}
 61 
}
51 
 
 62 
 
52 
#endif
 63 
#endif
53 
 
 64