161 lines
3.4 KiB
C
161 lines
3.4 KiB
C
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Sam Lantinga
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slouken@devolution.com
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*/
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#ifdef SAVE_RCSID
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static char rcsid =
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"@(#) $Id$";
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#endif
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/* General fatal signal handling code for SDL */
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#ifdef NO_SIGNAL_H
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/* No signals on this platform, nothing to do.. */
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void SDL_InstallParachute(void)
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{
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return;
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}
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void SDL_UninstallParachute(void)
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{
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return;
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}
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#else
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#include <stdlib.h>
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#include <stdio.h>
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#include <signal.h>
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#include <string.h>
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#include "SDL.h"
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#include "SDL_fatal.h"
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/* This installs some signal handlers for the more common fatal signals,
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so that if the programmer is lazy, the app doesn't die so horribly if
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the program crashes.
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*/
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static void SDL_Parachute(int sig)
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{
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signal(sig, SIG_DFL);
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fprintf(stderr, "Fatal signal: ");
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switch (sig) {
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case SIGSEGV:
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fprintf(stderr, "Segmentation Fault");
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break;
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#ifdef SIGBUS
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#if SIGBUS != SIGSEGV
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case SIGBUS:
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fprintf(stderr, "Bus Error");
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break;
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#endif
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#endif /* SIGBUS */
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#ifdef SIGFPE
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case SIGFPE:
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fprintf(stderr, "Floating Point Exception");
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break;
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#endif /* SIGFPE */
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#ifdef SIGQUIT
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case SIGQUIT:
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fprintf(stderr, "Keyboard Quit");
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break;
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#endif /* SIGQUIT */
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#ifdef SIGPIPE
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case SIGPIPE:
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fprintf(stderr, "Broken Pipe");
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break;
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#endif /* SIGPIPE */
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default:
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fprintf(stderr, "# %d", sig);
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break;
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}
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fprintf(stderr, " (SDL Parachute Deployed)\n");
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SDL_Quit();
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exit(-sig);
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}
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static int SDL_fatal_signals[] = {
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SIGSEGV,
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#ifdef SIGBUS
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SIGBUS,
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#endif
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#ifdef SIGFPE
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SIGFPE,
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#endif
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#ifdef SIGQUIT
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SIGQUIT,
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#endif
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#ifdef SIGPIPE
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SIGPIPE,
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#endif
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0
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};
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void SDL_InstallParachute(void)
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{
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int i;
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void (*ohandler)(int);
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/* Set a handler for any fatal signal not already handled */
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for ( i=0; SDL_fatal_signals[i]; ++i ) {
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ohandler = signal(SDL_fatal_signals[i], SDL_Parachute);
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if ( ohandler != SIG_DFL ) {
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signal(SDL_fatal_signals[i], ohandler);
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}
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}
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#ifdef SIGALRM
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/* Set SIGALRM to be ignored -- necessary on Solaris */
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{
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struct sigaction action, oaction;
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/* Set SIG_IGN action */
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memset(&action, 0, (sizeof action));
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action.sa_handler = SIG_IGN;
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sigaction(SIGALRM, &action, &oaction);
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/* Reset original action if it was already being handled */
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if ( oaction.sa_handler != SIG_DFL ) {
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sigaction(SIGALRM, &oaction, NULL);
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}
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}
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#endif
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return;
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}
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void SDL_UninstallParachute(void)
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{
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int i;
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void (*ohandler)(int);
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/* Remove a handler for any fatal signal handled */
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for ( i=0; SDL_fatal_signals[i]; ++i ) {
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ohandler = signal(SDL_fatal_signals[i], SIG_DFL);
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if ( ohandler != SDL_Parachute ) {
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signal(SDL_fatal_signals[i], ohandler);
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}
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}
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}
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#endif /* NO_SIGNAL_H */
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