Mercurial > sdl-ios-xcode

annotate src/thread/riscos/SDL_systhread.c @ 3502:98a819296cdc

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Whenever a window becomes fullscreen, shown, unminimized, and has input focus it will change the display to the corresponding fullscreen video mode. If it loses any of those properties the desktop mode will be restored.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 01 Dec 2009 08:56:12 +0000
parents 99210400e8b9
children 0d1b16ee0bca
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 #else
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58
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59 #include <signal.h>
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60
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61 /* List of signals to mask in the subthreads */
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62 static int sig_list[] = {
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63 SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCHLD, SIGWINCH,
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64 SIGVTALRM, SIGPROF, 0
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65 };
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66
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67 #include <pthread.h>
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68
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69 int riscos_using_threads = 0;
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70 Uint32 riscos_main_thread = 0; /* Thread running events */
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71
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72 static void *
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73 RunThread(void *data)
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74 {
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75 SDL_RunThread(data);
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76 pthread_exit((void *) 0);
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77 return ((void *) 0); /* Prevent compiler warning */
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78 }
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79
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80 int
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81 SDL_SYS_CreateThread(SDL_Thread * thread, void *args)
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82 {
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83 pthread_attr_t type;
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84
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85 /* Set the thread attributes */
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86 if (pthread_attr_init(&type) != 0) {
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87 SDL_SetError("Couldn't initialize pthread attributes");
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88 return (-1);
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89 }
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90 pthread_attr_setdetachstate(&type, PTHREAD_CREATE_JOINABLE);
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91
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92 /* Create the thread and go! */
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93 if (pthread_create(&thread->handle, &type, RunThread, args) != 0) {
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94 SDL_SetError("Not enough resources to create thread");
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95 return (-1);
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96 }
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97
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98 if (riscos_using_threads == 0) {
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99 riscos_using_threads = 1;
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100 riscos_main_thread = SDL_ThreadID();
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101 }
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102
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103 return (0);
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104 }
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105
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106 void
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107 SDL_SYS_SetupThread(void)
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108 {
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109 int i;
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110 sigset_t mask;
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111
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112 /* Mask asynchronous signals for this thread */
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113 sigemptyset(&mask);
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114 for (i = 0; sig_list[i]; ++i) {
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115 sigaddset(&mask, sig_list[i]);
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116 }
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117 pthread_sigmask(SIG_BLOCK, &mask, 0);
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118
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119 #ifdef PTHREAD_CANCEL_ASYNCHRONOUS
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120 /* Allow ourselves to be asynchronously cancelled */
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121 {
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122 int oldstate;
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123 pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &oldstate);
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124 }
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125 #endif
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126 }
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127
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128 Uint32
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129 SDL_ThreadID(void)
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130 {
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131 return ((Uint32) pthread_self());
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132 }
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133
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134 void
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135 SDL_SYS_WaitThread(SDL_Thread * thread)
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136 {
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137 pthread_join(thread->handle, 0);
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138 }
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139
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140 #endif
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141 /* vi: set ts=4 sw=4 expandtab: */