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annotate src/thread/pthread/SDL_systhread.c @ 5166:d72793305335

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Making the API simpler, moved the surface drawing functions to the software renderer.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 03 Feb 2011 02:45:29 -0800
parents 797b37c0c046
children b530ef003506
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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 const 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 static void *
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38 RunThread(void *data)
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39 {
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40 SDL_RunThread(data);
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41 pthread_exit((void *) 0);
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42 return ((void *) 0); /* Prevent compiler warning */
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43 }
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44
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45 int
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46 SDL_SYS_CreateThread(SDL_Thread * thread, void *args)
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47 {
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48 pthread_attr_t type;
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49
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50 /* Set the thread attributes */
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51 if (pthread_attr_init(&type) != 0) {
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52 SDL_SetError("Couldn't initialize pthread attributes");
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53 return (-1);
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54 }
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55 pthread_attr_setdetachstate(&type, PTHREAD_CREATE_JOINABLE);
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56
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57 /* Create the thread and go! */
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58 if (pthread_create(&thread->handle, &type, RunThread, args) != 0) {
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59 SDL_SetError("Not enough resources to create thread");
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60 return (-1);
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61 }
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62
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63 return (0);
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64 }
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65
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66 void
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67 SDL_SYS_SetupThread(void)
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68 {
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69 int i;
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70 sigset_t mask;
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71
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72 /* Mask asynchronous signals for this thread */
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73 sigemptyset(&mask);
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74 for (i = 0; sig_list[i]; ++i) {
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75 sigaddset(&mask, sig_list[i]);
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76 }
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77 pthread_sigmask(SIG_BLOCK, &mask, 0);
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78
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79 #ifdef PTHREAD_CANCEL_ASYNCHRONOUS
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80 /* Allow ourselves to be asynchronously cancelled */
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81 {
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82 int oldstate;
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83 pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &oldstate);
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84 }
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85 #endif
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86 }
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87
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88 SDL_threadID
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89 SDL_ThreadID(void)
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90 {
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91 return ((SDL_threadID) pthread_self());
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92 }
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93
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94 void
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95 SDL_SYS_WaitThread(SDL_Thread * thread)
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96 {
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97 pthread_join(thread->handle, 0);
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98 }
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99
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100 /* vi: set ts=4 sw=4 expandtab: */