Ardour  9.0-pre0-582-g084a23a80d
surfaces/us2400/timer.h
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1 /*
2  * Copyright (C) 2017 Ben Loftis <ben@harrisonconsoles.com>
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License along
15  * with this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17  */
18 
19 #ifndef timer_h
20 #define timer_h
21 
22 #include <glib.h>
23 
24 #include <cstdint>
25 
26 #ifdef _WIN32
27 #include "windows.h"
28 #else
29 #include <sys/time.h>
30 #endif
31 
32 namespace ArdourSurface {
33 
34 namespace US2400
35 {
36 
40 class Timer
41 {
42 public:
43 
48  Timer( bool shouldStart = true )
49  {
50  if ( shouldStart )
51  start();
52  }
53 
57  unsigned long start()
58  {
59  _start = g_get_monotonic_time();
60  return _start / 1000;
61  }
62 
67  unsigned long stop()
68  {
69  _stop = g_get_monotonic_time();
70  return elapsed();
71  }
72 
76  unsigned long elapsed() const
77  {
78  if ( running )
79  {
80  uint64_t now = g_get_monotonic_time();
81  return (now - _start) / 1000;
82  }
83  else
84  {
85  return (_stop - _start) / 1000;
86  }
87  }
88 
92  unsigned long restart()
93  {
94  unsigned long retval = stop();
95  start();
96  return retval;
97  }
98 
99 private:
100  uint64_t _start;
101  uint64_t _stop;
102  bool running;
103 };
104 
105 } // US2400 namespace
106 } // ArdourSurface namespace
107 
108 #endif
DebugBits US2400