annotate src/events/SDL_quit.c @ 4135:cd98d1dc385c SDL-1.2

Damien Carbery fixed bug #542 In SDL 1.2.13 sdl.m4 the AM_PATH_SDL function looks for sdl-config. It sets the PATH: PATH="$prefix/bin:$prefix/usr/bin:$PATH" but does not save the current PATH or restore the current PATH at the end. This breaks the build on Solaris because we have GNU tools in another dir (listed at the top of PATH) but non-GNU tools with the same names in $prefix/bin. Later configure tests finds the non-GNU tools and quits in error
author Sam Lantinga <slouken@libsdl.org>
date Thu, 24 Jan 2008 15:50:20 +0000
parents d910939febfa
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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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
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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.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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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
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* General quit handling code for SDL */
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25
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26 #ifdef HAVE_SIGNAL_H
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27 #include <signal.h>
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28 #endif
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29
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30 #include "SDL_events.h"
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31 #include "SDL_events_c.h"
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32
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33
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34 #ifdef HAVE_SIGNAL_H
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35 static void SDL_HandleSIG(int sig)
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36 {
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37 /* Reset the signal handler */
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38 signal(sig, SDL_HandleSIG);
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39
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40 /* Signal a quit interrupt */
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41 SDL_PrivateQuit();
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42 }
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43 #endif /* HAVE_SIGNAL_H */
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44
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45 /* Public functions */
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46 int SDL_QuitInit(void)
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47 {
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48 #ifdef HAVE_SIGNAL_H
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49 void (*ohandler)(int);
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50
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51 /* Both SIGINT and SIGTERM are translated into quit interrupts */
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52 ohandler = signal(SIGINT, SDL_HandleSIG);
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53 if ( ohandler != SIG_DFL )
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54 signal(SIGINT, ohandler);
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55 ohandler = signal(SIGTERM, SDL_HandleSIG);
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56 if ( ohandler != SIG_DFL )
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57 signal(SIGTERM, ohandler);
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58 #endif /* HAVE_SIGNAL_H */
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59
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60 /* That's it! */
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61 return(0);
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62 }
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63 void SDL_QuitQuit(void)
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64 {
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65 #ifdef HAVE_SIGNAL_H
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66 void (*ohandler)(int);
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67
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68 ohandler = signal(SIGINT, SIG_DFL);
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69 if ( ohandler != SDL_HandleSIG )
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70 signal(SIGINT, ohandler);
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71 ohandler = signal(SIGTERM, SIG_DFL);
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72 if ( ohandler != SDL_HandleSIG )
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73 signal(SIGTERM, ohandler);
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74 #endif /* HAVE_SIGNAL_H */
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75 }
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76
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77 /* This function returns 1 if it's okay to close the application window */
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78 int SDL_PrivateQuit(void)
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79 {
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80 int posted;
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81
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82 posted = 0;
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83 if ( SDL_ProcessEvents[SDL_QUIT] == SDL_ENABLE ) {
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84 SDL_Event event;
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85 event.type = SDL_QUIT;
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86 if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
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87 posted = 1;
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88 SDL_PushEvent(&event);
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89 }
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90 }
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91 return(posted);
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92 }