1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2012 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
36static int sig_list[] = {
37	SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCLD, SIGWINCH,
38	SIGVTALRM, SIGPROF, 0
39};
40
41
42int 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
52void 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 */
66Uint32 SDL_ThreadID(void)
67{
68	return((Uint32)getpid());
69}
70
71/* WARNING:  This may not work for systems with 64-bit pid_t */
72void 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 */
81void SDL_KillThread(SDL_Thread *thread)
82{
83	kill(thread->handle, SIGKILL);
84}
85
86