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annotate src/thread/irix/SDL_systhread.c @ 2915:deb377097225

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Fixed CPU feature detection on x86_64 platform (registers were being corrupted, causing crashes)
author Sam Lantinga <slouken@libsdl.org>
date Wed, 24 Dec 2008 13:13:38 +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 /* IRIX thread management routines for SDL */
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25
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26 #include <errno.h>
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27 #include <signal.h>
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28 #include <sys/types.h>
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29 #include <sys/wait.h>
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30 #include <sys/prctl.h>
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31
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32 #include "SDL_thread.h"
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33 #include "../SDL_systhread.h"
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34
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35
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36 static int sig_list[] = {
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37 SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCLD, SIGWINCH,
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38 SIGVTALRM, SIGPROF, 0
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39 };
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40
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41
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42 int
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43 SDL_SYS_CreateThread(SDL_Thread * thread, void *args)
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44 {
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45 /* Create the thread and go! */
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46 if (sproc(SDL_RunThread, PR_SALL, args) < 0) {
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47 SDL_SetError("Not enough resources to create thread");
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48 return (-1);
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49 }
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50 return (0);
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51 }
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52
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53 void
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54 SDL_SYS_SetupThread(void)
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55 {
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56 int i;
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57 sigset_t mask;
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58
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59 /* Mask asynchronous signals for this thread */
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60 sigemptyset(&mask);
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61 for (i = 0; sig_list[i]; ++i) {
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62 sigaddset(&mask, sig_list[i]);
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63 }
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64 sigprocmask(SIG_BLOCK, &mask, NULL);
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65 }
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66
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67 /* WARNING: This may not work for systems with 64-bit pid_t */
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68 Uint32
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69 SDL_ThreadID(void)
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70 {
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71 return ((Uint32) getpid());
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72 }
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73
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74 /* WARNING: This may not work for systems with 64-bit pid_t */
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75 void
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76 SDL_WaitThread(SDL_Thread * thread, int *status)
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77 {
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78 errno = 0;
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79 while (errno != ECHILD) {
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80 waitpid(thread->handle, NULL, 0);
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81 }
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82 }
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83
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84 /* vi: set ts=4 sw=4 expandtab: */