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annotate src/thread/amigaos/SDL_systhread.c @ 1662:782fd950bd46 SDL-1.3

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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents d910939febfa
children 4da1ee79c9af
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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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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 /* BeOS thread management routines for SDL */
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25
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26 #include "SDL_mutex.h"
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27 #include "SDL_thread.h"
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28 #include "../SDL_thread_c.h"
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29 #include "../SDL_systhread.h"
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30 #include "mydebug.h"
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31
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32 typedef struct
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33 {
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34 int (*func) (void *);
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35 void *data;
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36 SDL_Thread *info;
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37 struct Task *wait;
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38 } thread_args;
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39
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40 #ifndef MORPHOS
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41
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42 #if defined(__SASC) && !defined(__PPC__)
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43 __saveds __asm Uint32
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44 RunThread (register __a0 char *args)
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45 #elif defined(__PPC__)
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46 Uint32
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47 RunThread (char *args)
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48 #else
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49 Uint32 __saveds
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50 RunThread (char *args __asm ("a0"))
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51 #endif
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52 {
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53 #ifdef STORMC4_WOS
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54 thread_args *data = (thread_args *) args;
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55 #else
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56 thread_args *data = (thread_args *) atol (args);
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57 #endif
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58
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59 struct Task *Father;
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60
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61 D (bug ("Received data: %lx\n", data));
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62 Father = data->wait;
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63
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64 SDL_RunThread (data);
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65
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66 Signal (Father, SIGBREAKF_CTRL_F);
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67 D (bug ("Thread with data %lx ended\n", data));
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68 return (0);
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69 }
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70
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71 #else
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72
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73 #include <emul/emulinterface.h>
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74
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75 Uint32
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76 RunTheThread (void)
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77 {
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78 thread_args *data = (thread_args *) atol ((char *) REG_A0);
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79 struct Task *Father;
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80
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81 D (bug ("Received data: %lx\n", data));
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82 Father = data->wait;
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83
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84 SDL_RunThread (data);
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85
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86 Signal (Father, SIGBREAKF_CTRL_F);
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87 D (bug ("Thread with data %lx ended\n", data));
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88 return (0);
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89 }
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90
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91 struct EmulLibEntry RunThreadStruct = {
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92 TRAP_LIB,
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93 0,
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94 (ULONG) RunTheThread
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95 };
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96
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97 void *RunThread = &RunThreadStruct;
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98 #endif
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99
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100
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101 int
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102 SDL_SYS_CreateThread (SDL_Thread * thread, void *args)
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103 {
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104 /* Create the thread and go! */
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105 char buffer[20];
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106
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107 D (bug ("Sending %lx to the new thread...\n", args));
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108
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109 if (args)
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110 SDL_snprintf (buffer, SDL_arraysize (buffer), "%ld", args);
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111
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112 #ifdef STORMC4_WOS
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113 thread->handle = CreateTaskPPCTags (TASKATTR_CODE, RunThread,
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114 TASKATTR_NAME, "SDL subtask",
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115 TASKATTR_STACKSIZE, 100000,
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116 (args ? TASKATTR_R3 : TAG_IGNORE),
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117 args, TASKATTR_INHERITR2, TRUE,
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118 TAG_DONE);
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119 #else
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120 thread->handle = (struct Task *) CreateNewProcTags (NP_Output, Output (),
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121 NP_Name,
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122 (ULONG) "SDL subtask",
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123 NP_CloseOutput, FALSE,
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124 NP_StackSize, 20000,
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125 NP_Entry,
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126 (ULONG) RunThread,
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127 args ? NP_Arguments :
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128 TAG_IGNORE,
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129 (ULONG) buffer,
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130 TAG_DONE);
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131 #endif
255
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132
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133 if (!thread->handle) {
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134 SDL_SetError ("Not enough resources to create thread");
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135 return (-1);
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136 }
0
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137
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138 return (0);
0
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139 }
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140
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141 void
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142 SDL_SYS_SetupThread (void)
0
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143 {
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144 }
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145
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146 Uint32
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147 SDL_ThreadID (void)
0
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148 {
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149 return ((Uint32) FindTask (NULL));
0
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150 }
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151
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152 void
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153 SDL_SYS_WaitThread (SDL_Thread * thread)
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154 {
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155 SetSignal (0L, SIGBREAKF_CTRL_F | SIGBREAKF_CTRL_C);
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156 Wait (SIGBREAKF_CTRL_F | SIGBREAKF_CTRL_C);
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157 }
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158
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159 void
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160 SDL_SYS_KillThread (SDL_Thread * thread)
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161 {
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162 Signal ((struct Task *) thread->handle, SIGBREAKF_CTRL_C);
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163 }
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164
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165 /* vi: set ts=4 sw=4 expandtab: */