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annotate src/timer/dc/SDL_systimer.c @ 1621:f12379c41042

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Fixes bug #195: The proper name of Apple's operating system is "Mac OS X" not "MacOS X", as can bee seen in many places, for example http://www.apple.com/macosx/). This contrasts the naming of the old operating system, which was called "MacOS" and today is often refered to as "MacOS Classic". The attached patches fixes the misuse of the name "MacOS X" in both the SDL12 and sdlweb CVS modules.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 13 Apr 2006 13:08:26 +0000
parents d910939febfa
children 92947e3a18db
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include <kos.h>
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25
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26 #include "SDL_thread.h"
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27 #include "SDL_timer.h"
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28 #include "../SDL_timer_c.h"
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29
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30 static unsigned start;
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31
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32 /*
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33 jif = ms * HZ /1000
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34 ms = jif * 1000/HZ
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35 */
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36
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37 void SDL_StartTicks(void)
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38 {
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39 /* Set first ticks value */
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40 start = jiffies;
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41 }
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42
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43 Uint32 SDL_GetTicks(void)
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44 {
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45 return((jiffies-start)*1000/HZ);
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46 }
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47
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48 void SDL_Delay(Uint32 ms)
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49 {
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50 thd_sleep(ms);
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51 }
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52
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53 /* Data to handle a single periodic alarm */
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54 static int timer_alive = 0;
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55 static SDL_Thread *timer = NULL;
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56
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57 static int RunTimer(void *unused)
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58 {
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59 while ( timer_alive ) {
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60 if ( SDL_timer_running ) {
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61 SDL_ThreadedTimerCheck();
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62 }
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63 SDL_Delay(10);
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64 }
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65 return(0);
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66 }
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67
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68 /* This is only called if the event thread is not running */
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69 int SDL_SYS_TimerInit(void)
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70 {
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71 timer_alive = 1;
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72 timer = SDL_CreateThread(RunTimer, NULL);
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73 if ( timer == NULL )
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74 return(-1);
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75 return(SDL_SetTimerThreaded(1));
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76 }
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77
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78 void SDL_SYS_TimerQuit(void)
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79 {
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80 timer_alive = 0;
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81 if ( timer ) {
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82 SDL_WaitThread(timer, NULL);
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83 timer = NULL;
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84 }
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85 }
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86
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87 int SDL_SYS_StartTimer(void)
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88 {
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89 SDL_SetError("Internal logic error: DC uses threaded timer");
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90 return(-1);
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91 }
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92
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93 void SDL_SYS_StopTimer(void)
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94 {
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95 return;
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96 }