Mercurial > sdl-ios-xcode
diff src/events/SDL_quit.c @ 0:74212992fb08
Initial revision
author | Sam Lantinga <slouken@lokigames.com> |
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date | Thu, 26 Apr 2001 16:45:43 +0000 |
parents | |
children | e8157fcb3114 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/events/SDL_quit.c Thu Apr 26 16:45:43 2001 +0000 @@ -0,0 +1,84 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@devolution.com +*/ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id$"; +#endif + +/* General quit handling code for SDL */ + +#include <stdio.h> +#ifndef NO_SIGNAL_H +#include <signal.h> +#endif + +#include "SDL_events.h" +#include "SDL_events_c.h" + + +#ifndef NO_SIGNAL_H +static void SDL_HandleSIG(int sig) +{ + /* Reset the signal handler */ + signal(sig, SDL_HandleSIG); + + /* Signal a quit interrupt */ + SDL_PrivateQuit(); +} +#endif /* NO_SIGNAL_H */ + +/* Public functions */ +int SDL_QuitInit(void) +{ +#ifndef NO_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 /* NO_SIGNAL_H */ + + /* That's it! */ + return(0); +} + +/* This function returns 1 if it's okay to close the application window */ +int SDL_PrivateQuit(void) +{ + int posted; + + posted = 0; + if ( SDL_ProcessEvents[SDL_QUIT] == SDL_ENABLE ) { + SDL_Event event; + event.type = SDL_QUIT; + if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { + posted = 1; + SDL_PushEvent(&event); + } + } + return(posted); +}