blob: c2e5f04285081ea59ad7e95a637660349384d67d (
plain)
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
|
/*
* Copyright (C) 2017 Ben Loftis <ben@harrisonconsoles.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef timer_h
#define timer_h
#ifdef _WIN32
#include "windows.h"
#else
#include <sys/time.h>
#endif
namespace ArdourSurface {
namespace US2400
{
/**
millisecond timer class.
*/
class Timer
{
public:
/**
start the timer running if true, or just create the
object if false.
*/
Timer( bool shouldStart = true )
{
if ( shouldStart )
start();
}
/**
Start the timer running. Return the current timestamp, in milliseconds
*/
unsigned long start()
{
_start = g_get_monotonic_time();
return _start / 1000;
}
/**
returns the number of milliseconds since start
also stops the timer running
*/
unsigned long stop()
{
_stop = g_get_monotonic_time();
return elapsed();
}
/**
returns the number of milliseconds since start
*/
unsigned long elapsed() const
{
if ( running )
{
uint64_t now = g_get_monotonic_time();
return (now - _start) / 1000;
}
else
{
return (_stop - _start) / 1000;
}
}
/**
Call stop and then start. Return the value from stop.
*/
unsigned long restart()
{
unsigned long retval = stop();
start();
return retval;
}
private:
uint64_t _start;
uint64_t _stop;
bool running;
};
} // US2400 namespace
} // ArdourSurface namespace
#endif
|
