Mercurial > sdl-ios-xcode
annotate src/thread/riscos/SDL_systhread.c @ 2171:4bd2dc41fc15
Fixed compiling the x11 driver
author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 11 Jul 2007 14:49:44 +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 /* RISC OS version based on pthreads linux source */ |
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25 |
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26 #include "SDL_thread.h" |
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27 #include "../SDL_systhread.h" |
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28 |
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29 #if SDL_THREADS_DISABLED |
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30 |
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31 int |
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32 SDL_SYS_CreateThread(SDL_Thread * thread, void *args) |
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33 { |
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34 SDL_SetError |
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35 ("Threads have not been compiled into this version of the library"); |
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36 return (-1); |
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37 } |
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38 |
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39 void |
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40 SDL_SYS_SetupThread(void) |
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41 { |
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42 return; |
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43 } |
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44 |
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45 Uint32 |
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46 SDL_ThreadID(void) |
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47 { |
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48 return (0); |
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49 } |
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50 |
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51 void |
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52 SDL_SYS_WaitThread(SDL_Thread * thread) |
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53 { |
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54 return; |
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55 } |
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56 |
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57 void |
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58 SDL_SYS_KillThread(SDL_Thread * thread) |
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59 { |
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60 return; |
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61 } |
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62 |
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63 #else |
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64 |
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65 #include <signal.h> |
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66 |
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67 /* List of signals to mask in the subthreads */ |
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68 static int sig_list[] = { |
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69 SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCHLD, SIGWINCH, |
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70 SIGVTALRM, SIGPROF, 0 |
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71 }; |
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72 |
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73 #include <pthread.h> |
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74 |
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75 int riscos_using_threads = 0; |
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76 Uint32 riscos_main_thread = 0; /* Thread running events */ |
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77 |
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78 static void * |
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79 RunThread(void *data) |
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80 { |
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81 SDL_RunThread(data); |
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82 pthread_exit((void *) 0); |
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83 return ((void *) 0); /* Prevent compiler warning */ |
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84 } |
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85 |
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86 int |
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87 SDL_SYS_CreateThread(SDL_Thread * thread, void *args) |
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88 { |
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89 pthread_attr_t type; |
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90 |
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91 /* Set the thread attributes */ |
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92 if (pthread_attr_init(&type) != 0) { |
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93 SDL_SetError("Couldn't initialize pthread attributes"); |
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94 return (-1); |
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95 } |
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96 pthread_attr_setdetachstate(&type, PTHREAD_CREATE_JOINABLE); |
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97 |
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98 /* Create the thread and go! */ |
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99 if (pthread_create(&thread->handle, &type, RunThread, args) != 0) { |
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100 SDL_SetError("Not enough resources to create thread"); |
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101 return (-1); |
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102 } |
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103 |
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104 if (riscos_using_threads == 0) { |
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105 riscos_using_threads = 1; |
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106 riscos_main_thread = SDL_ThreadID(); |
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107 } |
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108 |
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109 return (0); |
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110 } |
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111 |
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112 void |
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113 SDL_SYS_SetupThread(void) |
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114 { |
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115 int i; |
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116 sigset_t mask; |
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117 |
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118 /* Mask asynchronous signals for this thread */ |
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119 sigemptyset(&mask); |
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120 for (i = 0; sig_list[i]; ++i) { |
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121 sigaddset(&mask, sig_list[i]); |
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122 } |
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123 pthread_sigmask(SIG_BLOCK, &mask, 0); |
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124 |
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125 #ifdef PTHREAD_CANCEL_ASYNCHRONOUS |
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126 /* Allow ourselves to be asynchronously cancelled */ |
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127 { |
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128 int oldstate; |
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129 pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &oldstate); |
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130 } |
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131 #endif |
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132 } |
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133 |
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134 Uint32 |
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135 SDL_ThreadID(void) |
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136 { |
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137 return ((Uint32) pthread_self()); |
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138 } |
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139 |
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140 void |
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141 SDL_SYS_WaitThread(SDL_Thread * thread) |
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142 { |
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143 pthread_join(thread->handle, 0); |
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144 } |
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145 |
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146 void |
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147 SDL_SYS_KillThread(SDL_Thread * thread) |
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148 { |
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149 #ifdef PTHREAD_CANCEL_ASYNCHRONOUS |
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150 pthread_cancel(thread->handle); |
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151 #else |
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152 pthread_kill(thread->handle, SIGKILL); |
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153 #endif |
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154 } |
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155 |
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156 #endif |
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157 /* vi: set ts=4 sw=4 expandtab: */ |