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
|
/*
* Schism Tracker - a cross-platform Impulse Tracker clone
* copyright (c) 2003-2005 Storlek <storlek@rigelseven.com>
* copyright (c) 2005-2008 Mrs. Brisby <mrs.brisby@nimh.org>
* copyright (c) 2009 Storlek & Mrs. Brisby
* copyright (c) 2010-2012 Storlek
* URL: http://schismtracker.org/
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef SCHISM_TIMER_H_
#define SCHISM_TIMER_H_
#include "headers.h"
typedef uint64_t timer_ticks_t;
// Get the amount of milliseconds since timer_init() was called
timer_ticks_t timer_ticks(void);
// Same as the above but in microseconds
timer_ticks_t timer_ticks_us(void);
// Legacy macro, backends should account for missing bits in the timer
// by e.g. keeping a global state. See the SDL 1.2 backend for an example
// of this.
#define timer_ticks_passed(a, b) ((a) >= (b))
// Sleep for `usec` microseconds. (This may have much much less precision
// than anticipated!)
void timer_usleep(uint64_t usec);
// sleep for `msec` microseconds. This call in general is much less expensive
// than timer_usleep(), for good reason, since it is meant for performance,
// not accuracy.
void timer_msleep(uint32_t msec);
// Old functions that are simply macros now.
#define timer_delay(ms) timer_msleep(ms)
// Run a function after `ms` milliseconds
void timer_oneshot(uint32_t ms, void (*callback)(void *param), void *param);
// init/quit
int timer_init(void);
void timer_quit(void);
int timer_oneshot_worker(void);
#endif /* SCHISM_TIMER_H_ */
|
