/*

    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"

/* General quit handling code for SDL */

#ifdef HAVE_SIGNAL_H

#include <signal.h>

#endif

#include "SDL_events.h"

#include "SDL_events_c.h"

#ifdef HAVE_SIGNAL_H

static void

SDL_HandleSIG(int sig)

{

    /* Reset the signal handler */

    signal(sig, SDL_HandleSIG);

    /* Signal a quit interrupt */

    SDL_SendQuit();

}

#endif /* HAVE_SIGNAL_H */

/* Public functions */

int

SDL_QuitInit(void)

{

#ifdef HAVE_SIGNAL_H

    void (*ohandler) (int);

    /* Both SIGINT and SIGTERM are translated into quit interrupts */

    ohandler = signal(SIGINT, SDL_HandleSIG);

    if (ohandler != SIG_DFL)

        signal(SIGINT, ohandler);

    ohandler = signal(SIGTERM, SDL_HandleSIG);

    if (ohandler != SIG_DFL)

        signal(SIGTERM, ohandler);

#endif /* HAVE_SIGNAL_H */

    /* That's it! */

    return (0);

}

void

SDL_QuitQuit(void)

{

#ifdef HAVE_SIGNAL_H

    void (*ohandler) (int);

    ohandler = signal(SIGINT, SIG_DFL);

    if (ohandler != SDL_HandleSIG)

        signal(SIGINT, ohandler);

    ohandler = signal(SIGTERM, SIG_DFL);

    if (ohandler != SDL_HandleSIG)

        signal(SIGTERM, ohandler);

#endif /* HAVE_SIGNAL_H */

}

/* This function returns 1 if it's okay to close the application window */

int

SDL_SendQuit(void)

{

    int posted;

    posted = 0;

    if (SDL_ProcessEvents[SDL_QUIT] == SDL_ENABLE) {

        SDL_Event event;

        event.type = SDL_QUIT;

        posted = (SDL_PushEvent(&event) > 0);

    }

    return (posted);

}

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