1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2006 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
SDL_SYS_CreateThread(SDL_Thread * thread,void * args)42 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
43 {
44 /* Create the thread and go! */
45 if ( sproc(SDL_RunThread, PR_SALL, args) < 0 ) {
46 SDL_SetError("Not enough resources to create thread");
47 return(-1);
48 }
49 return(0);
50 }
51
SDL_SYS_SetupThread(void)52 void SDL_SYS_SetupThread(void)
53 {
54 int i;
55 sigset_t mask;
56
57 /* Mask asynchronous signals for this thread */
58 sigemptyset(&mask);
59 for ( i=0; sig_list[i]; ++i ) {
60 sigaddset(&mask, sig_list[i]);
61 }
62 sigprocmask(SIG_BLOCK, &mask, NULL);
63 }
64
65 /* WARNING: This may not work for systems with 64-bit pid_t */
SDL_ThreadID(void)66 Uint32 SDL_ThreadID(void)
67 {
68 return((Uint32)getpid());
69 }
70
71 /* WARNING: This may not work for systems with 64-bit pid_t */
SDL_WaitThread(SDL_Thread * thread,int * status)72 void SDL_WaitThread(SDL_Thread *thread, int *status)
73 {
74 errno = 0;
75 while ( errno != ECHILD ) {
76 waitpid(thread->handle, NULL, 0);
77 }
78 }
79
80 /* WARNING: This may not work for systems with 64-bit pid_t */
SDL_KillThread(SDL_Thread * thread)81 void SDL_KillThread(SDL_Thread *thread)
82 {
83 kill(thread->handle, SIGKILL);
84 }
85
86