src/thread/irix/SDL_systhread.c
author Sam Lantinga <slouken@libsdl.org>
Thu, 16 Feb 2006 10:11:48 +0000
changeset 1361 19418e4422cb
parent 1358 c71e05b4dc2e
child 1402 d910939febfa
permissions -rw-r--r--
New configure-based build system. Still work in progress, but much improved
     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 
    23 /* IRIX thread management routines for SDL */
    24 
    25 #include <errno.h>
    26 #include <signal.h>
    27 #include <sys/types.h>
    28 #include <sys/wait.h>
    29 #include <sys/prctl.h>
    30 
    31 #include "SDL_thread.h"
    32 #include "../SDL_systhread.h"
    33 
    34 
    35 static int sig_list[] = {
    36 	SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCLD, SIGWINCH,
    37 	SIGVTALRM, SIGPROF, 0
    38 };
    39 
    40 
    41 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
    42 {
    43 	/* Create the thread and go! */
    44 	if ( sproc(SDL_RunThread, PR_SALL, args) < 0 ) {
    45 		SDL_SetError("Not enough resources to create thread");
    46 		return(-1);
    47 	}
    48 	return(0);
    49 }
    50 
    51 void SDL_SYS_SetupThread(void)
    52 {
    53 	int i;
    54 	sigset_t mask;
    55 
    56 	/* Mask asynchronous signals for this thread */
    57 	sigemptyset(&mask);
    58 	for ( i=0; sig_list[i]; ++i ) {
    59 		sigaddset(&mask, sig_list[i]);
    60 	}
    61 	sigprocmask(SIG_BLOCK, &mask, NULL);
    62 }
    63 
    64 /* WARNING:  This may not work for systems with 64-bit pid_t */
    65 Uint32 SDL_ThreadID(void)
    66 {
    67 	return((Uint32)getpid());
    68 }
    69 
    70 /* WARNING:  This may not work for systems with 64-bit pid_t */
    71 void SDL_WaitThread(SDL_Thread *thread, int *status)
    72 {
    73 	errno = 0;
    74 	while ( errno != ECHILD ) {
    75 		waitpid(thread->handle, NULL, 0);
    76 	}
    77 }
    78 
    79 /* WARNING:  This may not work for systems with 64-bit pid_t */
    80 void SDL_KillThread(SDL_Thread *thread)
    81 {
    82 	kill(thread->handle, SIGKILL);
    83 }
    84