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 /* BeOS thread management routines for SDL */
25
26 #include <stdio.h>
27 #include <signal.h>
28 #include <be/kernel/OS.h>
29
30 #include "SDL_mutex.h"
31 #include "SDL_thread.h"
32 #include "../SDL_thread_c.h"
33 #include "../SDL_systhread.h"
34
35
36 static int sig_list[] = {
37 SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGWINCH, 0
38 };
39
SDL_MaskSignals(sigset_t * omask)40 void SDL_MaskSignals(sigset_t *omask)
41 {
42 sigset_t mask;
43 int i;
44
45 sigemptyset(&mask);
46 for ( i=0; sig_list[i]; ++i ) {
47 sigaddset(&mask, sig_list[i]);
48 }
49 sigprocmask(SIG_BLOCK, &mask, omask);
50 }
SDL_UnmaskSignals(sigset_t * omask)51 void SDL_UnmaskSignals(sigset_t *omask)
52 {
53 sigprocmask(SIG_SETMASK, omask, NULL);
54 }
55
RunThread(void * data)56 static int32 RunThread(void *data)
57 {
58 SDL_RunThread(data);
59 return(0);
60 }
61
SDL_SYS_CreateThread(SDL_Thread * thread,void * args)62 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
63 {
64 /* Create the thread and go! */
65 thread->handle=spawn_thread(RunThread, "SDL", B_NORMAL_PRIORITY, args);
66 if ( (thread->handle == B_NO_MORE_THREADS) ||
67 (thread->handle == B_NO_MEMORY) ) {
68 SDL_SetError("Not enough resources to create thread");
69 return(-1);
70 }
71 resume_thread(thread->handle);
72 return(0);
73 }
74
SDL_SYS_SetupThread(void)75 void SDL_SYS_SetupThread(void)
76 {
77 /* Mask asynchronous signals for this thread */
78 SDL_MaskSignals(NULL);
79 }
80
SDL_ThreadID(void)81 Uint32 SDL_ThreadID(void)
82 {
83 return((Uint32)find_thread(NULL));
84 }
85
SDL_SYS_WaitThread(SDL_Thread * thread)86 void SDL_SYS_WaitThread(SDL_Thread *thread)
87 {
88 status_t the_status;
89
90 wait_for_thread(thread->handle, &the_status);
91 }
92
SDL_SYS_KillThread(SDL_Thread * thread)93 void SDL_SYS_KillThread(SDL_Thread *thread)
94 {
95 kill_thread(thread->handle);
96 }
97