/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

/* IRIX thread management routines for SDL */

#include <errno.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/prctl.h>

#include "SDL_thread.h"
#include "../SDL_systhread.h"


static int sig_list[] = {
    SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCLD, SIGWINCH,
    SIGVTALRM, SIGPROF, 0
};


int
SDL_SYS_CreateThread (SDL_Thread * thread, void *args)
{
    /* Create the thread and go! */
    if (sproc (SDL_RunThread, PR_SALL, args) < 0) {
        SDL_SetError ("Not enough resources to create thread");
        return (-1);
    }
    return (0);
}

void
SDL_SYS_SetupThread (void)
{
    int i;
    sigset_t mask;

    /* Mask asynchronous signals for this thread */
    sigemptyset (&mask);
    for (i = 0; sig_list[i]; ++i) {
        sigaddset (&mask, sig_list[i]);
    }
    sigprocmask (SIG_BLOCK, &mask, NULL);
}

/* WARNING:  This may not work for systems with 64-bit pid_t */
Uint32
SDL_ThreadID (void)
{
    return ((Uint32) getpid ());
}

/* WARNING:  This may not work for systems with 64-bit pid_t */
void
SDL_WaitThread (SDL_Thread * thread, int *status)
{
    errno = 0;
    while (errno != ECHILD) {
        waitpid (thread->handle, NULL, 0);
    }
}

/* WARNING:  This may not work for systems with 64-bit pid_t */
void
SDL_KillThread (SDL_Thread * thread)
{
    kill (thread->handle, SIGKILL);
}

/* vi: set ts=4 sw=4 expandtab: */