Mercurial > sdl-ios-xcode

annotate src/timer/SDL_timer.c @ 3958:85b6fb6a5e3c SDL-1.2

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Actually, this is a better fix...clear the error state once if everything we need loaded; it's more efficient, and works even if the last unnecessary xrandr symbol failed to load. Otherwise, leave the original loadso error, so the end user can find out what symbol failed.
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 13 Jun 2007 08:00:10 +0000
parents e02263385643
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
rev   line source
1
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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 "SDL_timer.h"
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25 #include "SDL_timer_c.h"
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26 #include "SDL_mutex.h"
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27 #include "SDL_systimer.h"
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28
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29 /* #define DEBUG_TIMERS */
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30
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31 int SDL_timer_started = 0;
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32 int SDL_timer_running = 0;
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33
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34 /* Data to handle a single periodic alarm */
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35 Uint32 SDL_alarm_interval = 0;
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36 SDL_TimerCallback SDL_alarm_callback;
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37
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38 /* Data used for a thread-based timer */
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39 static int SDL_timer_threaded = 0;
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40
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41 struct _SDL_TimerID {
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42 Uint32 interval;
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43 SDL_NewTimerCallback cb;
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44 void *param;
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45 Uint32 last_alarm;
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46 struct _SDL_TimerID *next;
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47 };
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48
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49 static SDL_TimerID SDL_timers = NULL;
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50 static SDL_mutex *SDL_timer_mutex;
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51 static volatile SDL_bool list_changed = SDL_FALSE;
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52
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53 /* Set whether or not the timer should use a thread.
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54 This should not be called while the timer subsystem is running.
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55 */
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56 int SDL_SetTimerThreaded(int value)
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57 {
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58 int retval;
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59
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60 if ( SDL_timer_started ) {
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61 SDL_SetError("Timer already initialized");
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62 retval = -1;
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63 } else {
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64 retval = 0;
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65 SDL_timer_threaded = value;
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66 }
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67 return retval;
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68 }
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69
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70 int SDL_TimerInit(void)
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71 {
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72 int retval;
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73
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74 retval = 0;
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75 if ( SDL_timer_started ) {
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76 SDL_TimerQuit();
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77 }
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78 if ( ! SDL_timer_threaded ) {
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79 retval = SDL_SYS_TimerInit();
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80 }
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81 if ( SDL_timer_threaded ) {
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82 SDL_timer_mutex = SDL_CreateMutex();
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83 }
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84 if ( retval == 0 ) {
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85 SDL_timer_started = 1;
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86 }
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87 return(retval);
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88 }
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89
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90 void SDL_TimerQuit(void)
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91 {
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92 SDL_SetTimer(0, NULL);
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93 if ( SDL_timer_threaded < 2 ) {
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94 SDL_SYS_TimerQuit();
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95 }
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96 if ( SDL_timer_threaded ) {
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97 SDL_DestroyMutex(SDL_timer_mutex);
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98 SDL_timer_mutex = NULL;
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99 }
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100 SDL_timer_started = 0;
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101 SDL_timer_threaded = 0;
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102 }
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103
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104 void SDL_ThreadedTimerCheck(void)
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105 {
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106 Uint32 now, ms;
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107 SDL_TimerID t, prev, next;
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108 SDL_bool removed;
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109
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110 SDL_mutexP(SDL_timer_mutex);
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111 list_changed = SDL_FALSE;
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112 now = SDL_GetTicks();
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113 for ( prev = NULL, t = SDL_timers; t; t = next ) {
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114 removed = SDL_FALSE;
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115 ms = t->interval - SDL_TIMESLICE;
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116 next = t->next;
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117 if ( (int)(now - t->last_alarm) > (int)ms ) {
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118 struct _SDL_TimerID timer;
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119
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120 if ( (now - t->last_alarm) < t->interval ) {
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121 t->last_alarm += t->interval;
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122 } else {
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123 t->last_alarm = now;
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124 }
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125 #ifdef DEBUG_TIMERS
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126 printf("Executing timer %p (thread = %d)\n",
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127 t, SDL_ThreadID());
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128 #endif
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129 timer = *t;
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130 SDL_mutexV(SDL_timer_mutex);
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131 ms = timer.cb(timer.interval, timer.param);
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132 SDL_mutexP(SDL_timer_mutex);
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133 if ( list_changed ) {
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134 /* Abort, list of timers modified */
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135 /* FIXME: what if ms was changed? */
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136 break;
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137 }
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138 if ( ms != t->interval ) {
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139 if ( ms ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
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diff changeset
140 t->interval = ROUND_RESOLUTION(ms);
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diff changeset
141 } else {
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diff changeset
142 /* Remove timer from the list */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
143 #ifdef DEBUG_TIMERS
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diff changeset
144 printf("SDL: Removing timer %p\n", t);
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
145 #endif
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
146 if ( prev ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
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diff changeset
147 prev->next = next;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
148 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
149 SDL_timers = next;
cf2af46e9e2a Changes since SDL 1.2.0 release
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diff changeset
150 }
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
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diff changeset
151 SDL_free(t);
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diff changeset
152 --SDL_timer_running;
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diff changeset
153 removed = SDL_TRUE;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
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diff changeset
154 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
155 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
156 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
157 /* Don't update prev if the timer has disappeared */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
158 if ( ! removed ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
159 prev = t;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
160 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
161 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
162 SDL_mutexV(SDL_timer_mutex);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
163 }
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diff changeset
164
1028
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diff changeset
165 static SDL_TimerID SDL_AddTimerInternal(Uint32 interval, SDL_NewTimerCallback callback, void *param)
5ba65305c954 Fix various problems with the timer code.
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parents: 1023
diff changeset
166 {
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Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
167 SDL_TimerID t;
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
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diff changeset
168 t = (SDL_TimerID) SDL_malloc(sizeof(struct _SDL_TimerID));
1028
5ba65305c954 Fix various problems with the timer code.
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diff changeset
169 if ( t ) {
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diff changeset
170 t->interval = ROUND_RESOLUTION(interval);
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diff changeset
171 t->cb = callback;
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diff changeset
172 t->param = param;
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Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
173 t->last_alarm = SDL_GetTicks();
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
174 t->next = SDL_timers;
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Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
175 SDL_timers = t;
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
176 ++SDL_timer_running;
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Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
177 list_changed = SDL_TRUE;
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
178 }
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
179 #ifdef DEBUG_TIMERS
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diff changeset
180 printf("SDL_AddTimer(%d) = %08x num_timers = %d\n", interval, (Uint32)t, SDL_timer_running);
5ba65305c954 Fix various problems with the timer code.
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diff changeset
181 #endif
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
182 return t;
5ba65305c954 Fix various problems with the timer code.
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diff changeset
183 }
5ba65305c954 Fix various problems with the timer code.
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parents: 1023
diff changeset
184
1
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
185 SDL_TimerID SDL_AddTimer(Uint32 interval, SDL_NewTimerCallback callback, void *param)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
186 {
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
187 SDL_TimerID t;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
188 if ( ! SDL_timer_mutex ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
189 if ( SDL_timer_started ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
190 SDL_SetError("This platform doesn't support multiple timers");
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
191 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
192 SDL_SetError("You must call SDL_Init(SDL_INIT_TIMER) first");
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
193 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
194 return NULL;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
195 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
196 if ( ! SDL_timer_threaded ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
197 SDL_SetError("Multiple timers require threaded events!");
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
198 return NULL;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
199 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
200 SDL_mutexP(SDL_timer_mutex);
1028
5ba65305c954 Fix various problems with the timer code.
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diff changeset
201 t = SDL_AddTimerInternal(interval, callback, param);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
202 SDL_mutexV(SDL_timer_mutex);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
203 return t;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
204 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
205
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
206 SDL_bool SDL_RemoveTimer(SDL_TimerID id)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
207 {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
208 SDL_TimerID t, prev = NULL;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
209 SDL_bool removed;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
210
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
211 removed = SDL_FALSE;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
212 SDL_mutexP(SDL_timer_mutex);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
213 /* Look for id in the linked list of timers */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
214 for (t = SDL_timers; t; prev=t, t = t->next ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
215 if ( t == id ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
216 if(prev) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
217 prev->next = t->next;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
218 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
219 SDL_timers = t->next;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
220 }
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
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diff changeset
221 SDL_free(t);
1028
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diff changeset
222 --SDL_timer_running;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
223 removed = SDL_TRUE;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
224 list_changed = SDL_TRUE;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
225 break;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
226 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
227 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
228 #ifdef DEBUG_TIMERS
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
229 printf("SDL_RemoveTimer(%08x) = %d num_timers = %d thread = %d\n", (Uint32)id, removed, SDL_timer_running, SDL_ThreadID());
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
230 #endif
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
231 SDL_mutexV(SDL_timer_mutex);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
232 return removed;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
233 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
234
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
235 /* Old style callback functions are wrapped through this */
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents: 1117
diff changeset
236 static Uint32 SDLCALL callback_wrapper(Uint32 ms, void *param)
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
237 {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
238 SDL_TimerCallback func = (SDL_TimerCallback) param;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
239 return (*func)(ms);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
240 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
241
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
242 int SDL_SetTimer(Uint32 ms, SDL_TimerCallback callback)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
243 {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
244 int retval;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
245
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
246 #ifdef DEBUG_TIMERS
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
247 printf("SDL_SetTimer(%d)\n", ms);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248 #endif
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
249 retval = 0;
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
250
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
251 if ( SDL_timer_threaded ) {
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
252 SDL_mutexP(SDL_timer_mutex);
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
253 }
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
254 if ( SDL_timer_running ) { /* Stop any currently running timer */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255 if ( SDL_timer_threaded ) {
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
256 while ( SDL_timers ) {
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
257 SDL_TimerID freeme = SDL_timers;
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
258 SDL_timers = SDL_timers->next;
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
259 SDL_free(freeme);
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
260 }
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
261 SDL_timer_running = 0;
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
262 list_changed = SDL_TRUE;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
263 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
264 SDL_SYS_StopTimer();
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
265 SDL_timer_running = 0;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
266 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
267 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
268 if ( ms ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
269 if ( SDL_timer_threaded ) {
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
270 if ( SDL_AddTimerInternal(ms, callback_wrapper, (void *)callback) == NULL ) {
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
271 retval = -1;
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
272 }
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 SDL_timer_running = 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 SDL_alarm_interval = ms;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 SDL_alarm_callback = callback;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 retval = SDL_SYS_StartTimer();
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 }
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
280 if ( SDL_timer_threaded ) {
1117
95b261f445b1 From: Jim Paris <jim_jtan_com>
Ryan C. Gordon <icculus@icculus.org>
parents: 1028
diff changeset
281 SDL_mutexV(SDL_timer_mutex);
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
282 }
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
283
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284 return retval;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 }