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annotate src/thread/win32/SDL_systhread.c @ 2349:0381047f2210 gsoc2008_iphone

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The class SDL_uikitappdelegate acts as the UIApplicationDelegate for an iPhone SDL project. This class is reponsible for application control flow, including initial setup of working directory, forwarding command line arguments to the user's main function, and handling application termination.
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Thu, 17 Jul 2008 22:29:37 +0000
parents c121d94672cb
children 4436464c4f51
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 /* Win32 thread management routines for SDL */
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25
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26 #define WIN32_LEAN_AND_MEAN
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27 #include <windows.h>
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28
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29 #include "SDL_thread.h"
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30 #include "../SDL_thread_c.h"
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31 #include "../SDL_systhread.h"
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32
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33 #ifndef SDL_PASSED_BEGINTHREAD_ENDTHREAD
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34 #ifndef _WIN32_WCE
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35 /* We'll use the C library from this DLL */
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36 #include <process.h>
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37 #endif
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38
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39 #if __GNUC__
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40 typedef unsigned long (__cdecl * pfnSDL_CurrentBeginThread) (void *, unsigned,
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41 unsigned
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42 (__stdcall *
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43 func) (void *),
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44 void *arg,
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45 unsigned,
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46 unsigned
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47 *threadID);
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48 typedef void (__cdecl * pfnSDL_CurrentEndThread) (unsigned code);
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49 #elif defined(__WATCOMC__)
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50 /* This is for Watcom targets except OS2 */
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51 #if __WATCOMC__ < 1240
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52 #define __watcall
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53 #endif
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54 typedef unsigned long (__watcall * pfnSDL_CurrentBeginThread) (void *,
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55 unsigned,
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56 unsigned
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57 (__stdcall *
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58 func) (void
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59 *),
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60 void *arg,
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61 unsigned,
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62 unsigned
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63 *threadID);
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64 typedef void (__watcall * pfnSDL_CurrentEndThread) (unsigned code);
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65 #else
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66 typedef uintptr_t(__cdecl * pfnSDL_CurrentBeginThread) (void *, unsigned,
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67 unsigned (__stdcall *
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68 func) (void
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69 *),
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70 void *arg, unsigned,
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71 unsigned *threadID);
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72 typedef void (__cdecl * pfnSDL_CurrentEndThread) (unsigned code);
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73 #endif
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74 #endif /* !SDL_PASSED_BEGINTHREAD_ENDTHREAD */
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75
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76
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77 typedef struct ThreadStartParms
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78 {
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79 void *args;
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80 pfnSDL_CurrentEndThread pfnCurrentEndThread;
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81 } tThreadStartParms, *pThreadStartParms;
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82
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83 static unsigned __stdcall
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84 RunThread(void *data)
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85 {
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86 pThreadStartParms pThreadParms = (pThreadStartParms) data;
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87 pfnSDL_CurrentEndThread pfnCurrentEndThread = NULL;
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88
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89 // Call the thread function!
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90 SDL_RunThread(pThreadParms->args);
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91
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92 // Get the current endthread we have to use!
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93 if (pThreadParms) {
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94 pfnCurrentEndThread = pThreadParms->pfnCurrentEndThread;
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95 SDL_free(pThreadParms);
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96 }
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97 // Call endthread!
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98 if (pfnCurrentEndThread)
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99 (*pfnCurrentEndThread) (0);
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100 return (0);
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101 }
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102
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103 #ifdef SDL_PASSED_BEGINTHREAD_ENDTHREAD
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104 int
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105 SDL_SYS_CreateThread(SDL_Thread * thread, void *args,
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106 pfnSDL_CurrentBeginThread pfnBeginThread,
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107 pfnSDL_CurrentEndThread pfnEndThread)
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108 {
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109 #else
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110 int
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111 SDL_SYS_CreateThread(SDL_Thread * thread, void *args)
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112 {
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113 #ifdef _WIN32_WCE
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114 pfnSDL_CurrentBeginThread pfnBeginThread = NULL;
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115 pfnSDL_CurrentEndThread pfnEndThread = NULL;
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116 #else
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117 pfnSDL_CurrentBeginThread pfnBeginThread = _beginthreadex;
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118 pfnSDL_CurrentEndThread pfnEndThread = _endthreadex;
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119 #endif
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120 #endif /* SDL_PASSED_BEGINTHREAD_ENDTHREAD */
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121 unsigned threadid;
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122 pThreadStartParms pThreadParms =
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123 (pThreadStartParms) SDL_malloc(sizeof(tThreadStartParms));
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124 if (!pThreadParms) {
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125 SDL_OutOfMemory();
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126 return (-1);
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127 }
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128 // Save the function which we will have to call to clear the RTL of calling app!
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129 pThreadParms->pfnCurrentEndThread = pfnEndThread;
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130 // Also save the real parameters we have to pass to thread function
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131 pThreadParms->args = args;
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132
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133 if (pfnBeginThread) {
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134 thread->handle =
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135 (SYS_ThreadHandle) pfnBeginThread(NULL, 0, RunThread,
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136 pThreadParms, 0, &threadid);
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137 } else {
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138 thread->handle =
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139 CreateThread(NULL, 0, RunThread, pThreadParms, 0, &threadid);
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140 }
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141 if (thread->handle == NULL) {
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142 SDL_SetError("Not enough resources to create thread");
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143 return (-1);
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144 }
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145 return (0);
0
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146 }
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147
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148 void
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149 SDL_SYS_SetupThread(void)
0
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150 {
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151 return;
0
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152 }
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153
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154 Uint32
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155 SDL_ThreadID(void)
0
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156 {
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157 return ((Uint32) GetCurrentThreadId());
0
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158 }
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159
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160 void
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161 SDL_SYS_WaitThread(SDL_Thread * thread)
0
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162 {
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163 WaitForSingleObject(thread->handle, INFINITE);
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164 CloseHandle(thread->handle);
0
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165 }
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166
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167 /* WARNING: This function is really a last resort.
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168 * Threads should be signaled and then exit by themselves.
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169 * TerminateThread() doesn't perform stack and DLL cleanup.
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170 */
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171 void
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172 SDL_SYS_KillThread(SDL_Thread * thread)
0
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173 {
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174 TerminateThread(thread->handle, FALSE);
0
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175 }
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176
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177 /* vi: set ts=4 sw=4 expandtab: */