/
SDL_fatal.c
160 lines (137 loc) · 3.36 KB
/
SDL_fatal.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
/*
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 fatal signal handling code for SDL */
#ifdef NO_SIGNAL_H
/* No signals on this platform, nothing to do.. */
void SDL_InstallParachute(void)
{
return;
}
void SDL_UninstallParachute(void)
{
return;
}
#else
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <string.h>
#include "SDL.h"
#include "SDL_fatal.h"
/* This installs some signal handlers for the more common fatal signals,
so that if the programmer is lazy, the app doesn't die so horribly if
the program crashes.
*/
static void SDL_Parachute(int sig)
{
signal(sig, SIG_DFL);
fprintf(stderr, "Fatal signal: ");
switch (sig) {
case SIGSEGV:
fprintf(stderr, "Segmentation Fault");
break;
#ifdef SIGBUS
#if SIGBUS != SIGSEGV
case SIGBUS:
fprintf(stderr, "Bus Error");
break;
#endif
#endif /* SIGBUS */
#ifdef SIGFPE
case SIGFPE:
fprintf(stderr, "Floating Point Exception");
break;
#endif /* SIGFPE */
#ifdef SIGQUIT
case SIGQUIT:
fprintf(stderr, "Keyboard Quit");
break;
#endif /* SIGQUIT */
#ifdef SIGPIPE
case SIGPIPE:
fprintf(stderr, "Broken Pipe");
break;
#endif /* SIGPIPE */
default:
fprintf(stderr, "# %d", sig);
break;
}
fprintf(stderr, " (SDL Parachute Deployed)\n");
SDL_Quit();
exit(-sig);
}
static int SDL_fatal_signals[] = {
SIGSEGV,
#ifdef SIGBUS
SIGBUS,
#endif
#ifdef SIGFPE
SIGFPE,
#endif
#ifdef SIGQUIT
SIGQUIT,
#endif
#ifdef SIGPIPE
SIGPIPE,
#endif
0
};
void SDL_InstallParachute(void)
{
int i;
void (*ohandler)(int);
/* Set a handler for any fatal signal not already handled */
for ( i=0; SDL_fatal_signals[i]; ++i ) {
ohandler = signal(SDL_fatal_signals[i], SDL_Parachute);
if ( ohandler != SIG_DFL ) {
signal(SDL_fatal_signals[i], ohandler);
}
}
#ifdef SIGALRM
/* Set SIGALRM to be ignored -- necessary on Solaris */
{
struct sigaction action, oaction;
/* Set SIG_IGN action */
memset(&action, 0, (sizeof action));
action.sa_handler = SIG_IGN;
sigaction(SIGALRM, &action, &oaction);
/* Reset original action if it was already being handled */
if ( oaction.sa_handler != SIG_DFL ) {
sigaction(SIGALRM, &oaction, NULL);
}
}
#endif
return;
}
void SDL_UninstallParachute(void)
{
int i;
void (*ohandler)(int);
/* Remove a handler for any fatal signal handled */
for ( i=0; SDL_fatal_signals[i]; ++i ) {
ohandler = signal(SDL_fatal_signals[i], SIG_DFL);
if ( ohandler != SDL_Parachute ) {
signal(SDL_fatal_signals[i], ohandler);
}
}
}
#endif /* NO_SIGNAL_H */