Mercurial > sdl-ios-xcode
annotate src/thread/pthread/SDL_systhread.c @ 2185:2032348afed1
This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is
available and to keep people form having to install yet another library I have added the essential parts of Xmu in
src/video/extensions/XmuStdCmap and an include file in src/video/extensions. The support makes use of standard X11 mechanisms to
create color maps and make sure that an application uses the same color map for each window/visual combination. This should make it
possible for gamma support to be implemented based on a single color map per application.
Hurm... it looks like "make indent" modified a few extra files. Those are getting committed too.
author | Bob Pendleton <bob@pendleton.com> |
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date | Thu, 12 Jul 2007 20:00:50 +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 #include <pthread.h> |
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25 #include <signal.h> |
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26 |
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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 |
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31 /* List of signals to mask in the subthreads */ |
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32 static int sig_list[] = { |
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33 SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCHLD, SIGWINCH, |
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34 SIGVTALRM, SIGPROF, 0 |
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35 }; |
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36 |
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37 #ifdef __RISCOS__ |
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38 /* RISC OS needs to know the main thread for |
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39 * it's timer and event processing. */ |
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40 int riscos_using_threads = 0; |
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41 Uint32 riscos_main_thread = 0; /* Thread running events */ |
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42 #endif |
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43 |
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44 |
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45 static void * |
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46 RunThread(void *data) |
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47 { |
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48 SDL_RunThread(data); |
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49 pthread_exit((void *) 0); |
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50 return ((void *) 0); /* Prevent compiler warning */ |
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51 } |
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52 |
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53 int |
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54 SDL_SYS_CreateThread(SDL_Thread * thread, void *args) |
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55 { |
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56 pthread_attr_t type; |
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57 |
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58 /* Set the thread attributes */ |
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59 if (pthread_attr_init(&type) != 0) { |
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60 SDL_SetError("Couldn't initialize pthread attributes"); |
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61 return (-1); |
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62 } |
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63 pthread_attr_setdetachstate(&type, PTHREAD_CREATE_JOINABLE); |
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64 |
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65 /* Create the thread and go! */ |
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66 if (pthread_create(&thread->handle, &type, RunThread, args) != 0) { |
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67 SDL_SetError("Not enough resources to create thread"); |
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68 return (-1); |
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69 } |
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70 #ifdef __RISCOS__ |
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71 if (riscos_using_threads == 0) { |
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72 riscos_using_threads = 1; |
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73 riscos_main_thread = SDL_ThreadID(); |
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74 } |
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75 #endif |
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76 |
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77 return (0); |
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78 } |
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79 |
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80 void |
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81 SDL_SYS_SetupThread(void) |
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82 { |
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83 int i; |
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84 sigset_t mask; |
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85 |
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86 /* Mask asynchronous signals for this thread */ |
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87 sigemptyset(&mask); |
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88 for (i = 0; sig_list[i]; ++i) { |
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89 sigaddset(&mask, sig_list[i]); |
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90 } |
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91 pthread_sigmask(SIG_BLOCK, &mask, 0); |
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92 |
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93 #ifdef PTHREAD_CANCEL_ASYNCHRONOUS |
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94 /* Allow ourselves to be asynchronously cancelled */ |
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95 { |
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96 int oldstate; |
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97 pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &oldstate); |
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98 } |
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99 #endif |
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100 } |
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101 |
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102 /* WARNING: This may not work for systems with 64-bit pid_t */ |
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103 Uint32 |
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104 SDL_ThreadID(void) |
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105 { |
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106 return ((Uint32) pthread_self()); |
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107 } |
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108 |
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109 void |
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110 SDL_SYS_WaitThread(SDL_Thread * thread) |
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111 { |
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112 pthread_join(thread->handle, 0); |
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113 } |
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114 |
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115 void |
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116 SDL_SYS_KillThread(SDL_Thread * thread) |
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117 { |
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118 #ifdef PTHREAD_CANCEL_ASYNCHRONOUS |
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119 pthread_cancel(thread->handle); |
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120 #else |
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121 #ifdef __FREEBSD__ |
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122 #warning For some reason, this doesnt actually kill a thread - FreeBSD 3.2 |
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123 #endif |
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124 pthread_kill(thread->handle, SIGKILL); |
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125 #endif |
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126 } |
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127 |
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128 /* vi: set ts=4 sw=4 expandtab: */ |