author | Sam Lantinga <slouken@libsdl.org> |
Fri, 08 Apr 2011 13:03:26 -0700 | |
changeset 5535 | 96594ac5fd1a |
parent 5262 | b530ef003506 |
child 6138 | 4c64952a58fb |
permissions | -rw-r--r-- |
0 | 1 |
/* |
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SDL 1.3 is now under the zlib license.
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Simple DirectMedia Layer |
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Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org> |
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|
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This software is provided 'as-is', without any express or implied |
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warranty. In no event will the authors be held liable for any damages |
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arising from the use of this software. |
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|
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Permission is granted to anyone to use this software for any purpose, |
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including commercial applications, and to alter it and redistribute it |
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freely, subject to the following restrictions: |
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|
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1. The origin of this software must not be misrepresented; you must not |
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claim that you wrote the original software. If you use this software |
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in a product, an acknowledgment in the product documentation would be |
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appreciated but is not required. |
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2. Altered source versions must be plainly marked as such, and must not be |
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SDL 1.3 is now under the zlib license.
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misrepresented as being the original software. |
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SDL 1.3 is now under the zlib license.
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3. This notice may not be removed or altered from any source distribution. |
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*/ |
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#include "SDL_config.h" |
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/* General fatal signal handling code for SDL */ |
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||
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#ifdef HAVE_SIGNAL_H |
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#include <signal.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 |
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SDL_Parachute(int sig) |
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{ |
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signal(sig, SIG_DFL); |
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SDL_Quit(); |
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raise(sig); |
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} |
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static const 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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0 |
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}; |
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void |
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SDL_InstallParachute(void) |
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{ |
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/* Set a handler for any fatal signal not already handled */ |
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int i; |
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#ifdef HAVE_SIGACTION |
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struct sigaction action; |
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|
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for (i = 0; SDL_fatal_signals[i]; ++i) { |
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sigaction(SDL_fatal_signals[i], NULL, &action); |
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if (action.sa_handler == SIG_DFL) { |
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action.sa_handler = SDL_Parachute; |
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sigaction(SDL_fatal_signals[i], &action, NULL); |
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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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sigaction(SIGALRM, NULL, &action); |
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if (action.sa_handler == SIG_DFL) { |
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action.sa_handler = SIG_IGN; |
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sigaction(SIGALRM, &action, NULL); |
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} |
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#endif |
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#else |
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void (*ohandler) (int); |
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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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#endif /* HAVE_SIGACTION */ |
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return; |
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} |
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void |
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SDL_UninstallParachute(void) |
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{ |
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/* Remove a handler for any fatal signal handled */ |
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int i; |
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#ifdef HAVE_SIGACTION |
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struct sigaction action; |
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|
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for (i = 0; SDL_fatal_signals[i]; ++i) { |
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sigaction(SDL_fatal_signals[i], NULL, &action); |
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if (action.sa_handler == SDL_Parachute) { |
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action.sa_handler = SIG_DFL; |
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sigaction(SDL_fatal_signals[i], &action, NULL); |
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} |
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} |
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#else |
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void (*ohandler) (int); |
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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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#endif /* HAVE_SIGACTION */ |
0 | 120 |
} |
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#else |
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123 |
|
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/* No signals on this platform, nothing to do.. */ |
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void |
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127 |
SDL_InstallParachute(void) |
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{ |
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129 |
return; |
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} |
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void |
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133 |
SDL_UninstallParachute(void) |
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{ |
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135 |
return; |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
136 |
} |
450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
137 |
|
450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
138 |
#endif /* HAVE_SIGNAL_H */ |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
139 |
/* vi: set ts=4 sw=4 expandtab: */ |