src/thread/irix/SDL_systhread.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 16 Dec 2009 04:48:11 +0000
changeset 3578 0d1b16ee0bca
parent 2859 99210400e8b9
child 3697 f7b03b6838cb
permissions -rw-r--r--
Fixed bug #741

The thread ID is an unsigned long so it can hold pthread_t so people can do naughty things with it.

I'm going to be adding additional useful thread API functions, but this should prevent crashes in people's existing code on 64-bit architectures.
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2009 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Lesser General Public
     7     License as published by the Free Software Foundation; either
     8     version 2.1 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Lesser General Public License for more details.
    14 
    15     You should have received a copy of the GNU Lesser General Public
    16     License along with this library; if not, write to the Free Software
    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 #include "SDL_config.h"
    23 
    24 /* IRIX thread management routines for SDL */
    25 
    26 #include <errno.h>
    27 #include <signal.h>
    28 #include <sys/types.h>
    29 #include <sys/wait.h>
    30 #include <sys/prctl.h>
    31 
    32 #include "SDL_thread.h"
    33 #include "../SDL_systhread.h"
    34 
    35 
    36 static int sig_list[] = {
    37     SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCLD, SIGWINCH,
    38     SIGVTALRM, SIGPROF, 0
    39 };
    40 
    41 
    42 int
    43 SDL_SYS_CreateThread(SDL_Thread * thread, void *args)
    44 {
    45     /* Create the thread and go! */
    46     if (sproc(SDL_RunThread, PR_SALL, args) < 0) {
    47         SDL_SetError("Not enough resources to create thread");
    48         return (-1);
    49     }
    50     return (0);
    51 }
    52 
    53 void
    54 SDL_SYS_SetupThread(void)
    55 {
    56     int i;
    57     sigset_t mask;
    58 
    59     /* Mask asynchronous signals for this thread */
    60     sigemptyset(&mask);
    61     for (i = 0; sig_list[i]; ++i) {
    62         sigaddset(&mask, sig_list[i]);
    63     }
    64     sigprocmask(SIG_BLOCK, &mask, NULL);
    65 }
    66 
    67 SDL_threadID
    68 SDL_ThreadID(void)
    69 {
    70     return ((SDL_threadID) getpid());
    71 }
    72 
    73 void
    74 SDL_WaitThread(SDL_Thread * thread, int *status)
    75 {
    76     errno = 0;
    77     while (errno != ECHILD) {
    78         waitpid(thread->handle, NULL, 0);
    79     }
    80 }
    81 
    82 /* vi: set ts=4 sw=4 expandtab: */