annotate src/timer/beos/SDL_systimer.c @ 4035:3ccd06fc22e5 SDL-1.2

Don't leak the readahead buffer if win32 rwops file open fails.
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 10 Jul 2007 15:03:19 +0000
parents 92947e3a18db
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
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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 #ifdef SDL_TIMER_BEOS
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25
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26 #include <be/kernel/OS.h>
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27
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28 #include "SDL_thread.h"
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29 #include "SDL_timer.h"
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30 #include "../SDL_timer_c.h"
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31
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32 static bigtime_t start;
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33
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34 void SDL_StartTicks(void)
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35 {
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36 /* Set first ticks value */
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37 start = system_time();
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38 }
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39
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40 Uint32 SDL_GetTicks(void)
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41 {
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42 return((system_time()-start)/1000);
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43 }
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44
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45 void SDL_Delay(Uint32 ms)
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46 {
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47 snooze(ms*1000);
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48 }
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49
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50 /* Data to handle a single periodic alarm */
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51 static int timer_alive = 0;
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52 static SDL_Thread *timer = NULL;
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53
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54 static int RunTimer(void *unused)
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55 {
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56 while ( timer_alive ) {
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57 if ( SDL_timer_running ) {
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58 SDL_ThreadedTimerCheck();
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59 }
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60 SDL_Delay(10);
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61 }
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62 return(0);
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63 }
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64
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65 /* This is only called if the event thread is not running */
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66 int SDL_SYS_TimerInit(void)
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67 {
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68 timer_alive = 1;
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69 timer = SDL_CreateThread(RunTimer, NULL);
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70 if ( timer == NULL )
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71 return(-1);
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72 return(SDL_SetTimerThreaded(1));
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73 }
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74
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75 void SDL_SYS_TimerQuit(void)
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76 {
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77 timer_alive = 0;
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78 if ( timer ) {
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79 SDL_WaitThread(timer, NULL);
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80 timer = NULL;
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81 }
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82 }
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83
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84 int SDL_SYS_StartTimer(void)
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85 {
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86 SDL_SetError("Internal logic error: BeOS uses threaded timer");
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87 return(-1);
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88 }
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89
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90 void SDL_SYS_StopTimer(void)
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91 {
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92 return;
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93 }
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94
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95 #endif /* SDL_TIMER_BEOS */