1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2012 Sam Lantinga
4
5    This library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9
10    This library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14
15    You should have received a copy of the GNU Lesser General Public
16    License along with this library; if not, write to the Free Software
17    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
18
19    Sam Lantinga
20    slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24/* Useful functions and variables from SDL_timer.c */
25#include "SDL_timer.h"
26
27#define ROUND_RESOLUTION(X)	\
28	(((X+TIMER_RESOLUTION-1)/TIMER_RESOLUTION)*TIMER_RESOLUTION)
29
30extern int SDL_timer_started;
31extern int SDL_timer_running;
32
33/* Data to handle a single periodic alarm */
34extern Uint32 SDL_alarm_interval;
35extern SDL_TimerCallback SDL_alarm_callback;
36
37/* Set whether or not the timer should use a thread.
38   This should be called while the timer subsystem is running.
39*/
40extern int SDL_SetTimerThreaded(int value);
41
42extern int SDL_TimerInit(void);
43extern void SDL_TimerQuit(void);
44
45/* This function is called from the SDL event thread if it is available */
46extern void SDL_ThreadedTimerCheck(void);
47