Timer.h
3.23 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
// Copyright (C) 2002 Ultr@VNC Team Members. All Rights Reserved.
// Copyright (C) 2000-2002 Const Kaplinsky. All Rights Reserved.
// Copyright (C) 2002 RealVNC Ltd. All Rights Reserved.
// Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
//
// This file is part of the VNC system.
//
// The VNC system 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.
//
// If the source code for the VNC system is not available from the place
// whence you received this file, check http://www.uk.research.att.com/vnc or contact
// the authors on vnc@uk.research.att.com for information on obtaining it.
// Class was copied from another project...but can find it back
// If someone find it please message me to add it..
#ifndef _TIMER_H
#include <stdio.h>
#include <winsock.h>
#include <time.h>
inline void gettimeofday( struct timeval *t, void* )
{
t->tv_sec = 0;
t->tv_usec = clock();
}
class Timer
{
public:
Timer();
virtual ~Timer(){};
inline double frame()
{
if( !stopped )
gettimeofday( &endT, 0 );
else
{
frameT.tv_sec = endT.tv_sec;
frameT.tv_usec = endT.tv_usec;
}
secs = endT.tv_sec - frameT.tv_sec;
usecs = endT.tv_usec - frameT.tv_usec;
frameT.tv_sec = endT.tv_sec;
frameT.tv_usec = endT.tv_usec;
return( secs + ( usecs * tScale ) );
}
//! Reset the timer to \b newVal.
inline void reset( float newVal = 0.0f )
{
total = newVal;
if( !stopped )
gettimeofday( &startT, 0 );
}
//! Read the current elapsed time (in seconds).
inline double read()
{
if( !stopped )
gettimeofday( &endT, 0 );
else
{
endT.tv_sec = startT.tv_sec;
endT.tv_usec = startT.tv_usec;
}
secs = endT.tv_sec - startT.tv_sec;
usecs = endT.tv_usec - startT.tv_usec;
return( secs + ( usecs * tScale ) + total );
}
//! Start the timer.
inline void start()
{
stopped = false;
gettimeofday( &startT, 0 );
frameT.tv_sec = startT.tv_sec;
frameT.tv_usec = startT.tv_usec;
}
//! Stop the timer.
inline void stop()
{
gettimeofday( &endT, 0 );
secs = endT.tv_sec - startT.tv_sec;
usecs = endT.tv_usec - startT.tv_usec;
total += ( secs + ( usecs * tScale) );
frameT.tv_sec = endT.tv_sec;
frameT.tv_usec = endT.tv_usec;
stopped = true;
}
private:
timeval endT, frameT, startT;
double secs, usecs, tScale, total;
bool stopped;
}; /* end class Timer */
#define _TIMER_H
#endif