Mercurial > sdl-ios-xcode
annotate src/SDL_fatal.c @ 4204:976bc19f8f6b SDL-1.2
1.2 Quartz video: Ripped out QuickDraw and QuickTime.
Now we use the software path for YUV, and CoreGraphics for 2D stuff.
There are several other 10.6 fixes in here, too...now we can build a 64-bit
SDL for Snow Leopard!
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Mon, 21 Sep 2009 06:08:23 +0000 |
| parents | a1b03ba2fcd0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* General fatal signal handling code for SDL */ | |
| 25 | |
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26 #ifdef HAVE_SIGNAL_H |
| 0 | 27 |
| 28 #include <signal.h> | |
| 29 | |
| 30 #include "SDL.h" | |
| 31 #include "SDL_fatal.h" | |
| 32 | |
| 33 /* This installs some signal handlers for the more common fatal signals, | |
| 34 so that if the programmer is lazy, the app doesn't die so horribly if | |
| 35 the program crashes. | |
| 36 */ | |
| 37 | |
| 38 static void SDL_Parachute(int sig) | |
| 39 { | |
| 40 signal(sig, SIG_DFL); | |
| 41 SDL_Quit(); | |
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42 raise(sig); |
| 0 | 43 } |
| 44 | |
| 45 static int SDL_fatal_signals[] = { | |
| 46 SIGSEGV, | |
| 47 #ifdef SIGBUS | |
| 48 SIGBUS, | |
| 49 #endif | |
| 50 #ifdef SIGFPE | |
| 51 SIGFPE, | |
| 52 #endif | |
| 53 #ifdef SIGQUIT | |
| 54 SIGQUIT, | |
| 55 #endif | |
| 56 0 | |
| 57 }; | |
| 58 | |
| 59 void SDL_InstallParachute(void) | |
| 60 { | |
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61 /* Set a handler for any fatal signal not already handled */ |
| 0 | 62 int i; |
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63 #ifdef HAVE_SIGACTION |
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64 struct sigaction action; |
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65 |
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66 for ( i=0; SDL_fatal_signals[i]; ++i ) { |
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67 sigaction(SDL_fatal_signals[i], NULL, &action); |
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68 if ( action.sa_handler == SIG_DFL ) { |
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69 action.sa_handler = SDL_Parachute; |
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70 sigaction(SDL_fatal_signals[i], &action, NULL); |
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71 } |
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72 } |
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73 #ifdef SIGALRM |
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74 /* Set SIGALRM to be ignored -- necessary on Solaris */ |
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75 sigaction(SIGALRM, NULL, &action); |
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76 if ( action.sa_handler == SIG_DFL ) { |
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77 action.sa_handler = SIG_IGN; |
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78 sigaction(SIGALRM, &action, NULL); |
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79 } |
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80 #endif |
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81 #else |
| 0 | 82 void (*ohandler)(int); |
| 83 | |
| 84 for ( i=0; SDL_fatal_signals[i]; ++i ) { | |
| 85 ohandler = signal(SDL_fatal_signals[i], SDL_Parachute); | |
| 86 if ( ohandler != SIG_DFL ) { | |
| 87 signal(SDL_fatal_signals[i], ohandler); | |
| 88 } | |
| 89 } | |
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90 #endif /* HAVE_SIGACTION */ |
| 0 | 91 return; |
| 92 } | |
| 93 | |
| 94 void SDL_UninstallParachute(void) | |
| 95 { | |
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96 /* Remove a handler for any fatal signal handled */ |
| 0 | 97 int i; |
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98 #ifdef HAVE_SIGACTION |
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99 struct sigaction action; |
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100 |
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101 for ( i=0; SDL_fatal_signals[i]; ++i ) { |
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102 sigaction(SDL_fatal_signals[i], NULL, &action); |
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103 if ( action.sa_handler == SDL_Parachute ) { |
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104 action.sa_handler = SIG_DFL; |
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105 sigaction(SDL_fatal_signals[i], &action, NULL); |
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106 } |
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107 } |
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108 #else |
| 0 | 109 void (*ohandler)(int); |
| 110 | |
| 111 for ( i=0; SDL_fatal_signals[i]; ++i ) { | |
| 112 ohandler = signal(SDL_fatal_signals[i], SIG_DFL); | |
| 113 if ( ohandler != SDL_Parachute ) { | |
| 114 signal(SDL_fatal_signals[i], ohandler); | |
| 115 } | |
| 116 } | |
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117 #endif /* HAVE_SIGACTION */ |
| 0 | 118 } |
| 119 | |
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120 #else |
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121 |
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122 /* No signals on this platform, nothing to do.. */ |
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123 |
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124 void SDL_InstallParachute(void) |
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125 { |
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126 return; |
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127 } |
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128 |
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129 void SDL_UninstallParachute(void) |
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130 { |
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131 return; |
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132 } |
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133 |
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134 #endif /* HAVE_SIGNAL_H */ |