annotate src/events/SDL_quit.c @ 1152:51a8702d8ecd

Updates to PocketPC (WinCE) support, thanks to Dmitry Yakimov at activekitten.com.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 29 Sep 2005 09:43:00 +0000
parents 28ac87a38c17
children c9b51268668f
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* General quit handling code for SDL */
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29
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30 #if defined (_WIN32_WCE)
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31 #define NO_SIGNAL_H
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32 #endif
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33
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34 #include <stdio.h>
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35 #ifndef NO_SIGNAL_H
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36 #include <signal.h>
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37 #endif
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38
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39 #include "SDL_events.h"
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40 #include "SDL_events_c.h"
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41
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42
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43 #ifndef NO_SIGNAL_H
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44 static void SDL_HandleSIG(int sig)
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45 {
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46 /* Reset the signal handler */
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47 signal(sig, SDL_HandleSIG);
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48
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49 /* Signal a quit interrupt */
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50 SDL_PrivateQuit();
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51 }
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52 #endif /* NO_SIGNAL_H */
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53
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54 /* Public functions */
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55 int SDL_QuitInit(void)
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56 {
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57 #ifndef NO_SIGNAL_H
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58 void (*ohandler)(int);
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59
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60 /* Both SIGINT and SIGTERM are translated into quit interrupts */
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61 ohandler = signal(SIGINT, SDL_HandleSIG);
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62 if ( ohandler != SIG_DFL )
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63 signal(SIGINT, ohandler);
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64 ohandler = signal(SIGTERM, SDL_HandleSIG);
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65 if ( ohandler != SIG_DFL )
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66 signal(SIGTERM, ohandler);
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67 #endif /* NO_SIGNAL_H */
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68
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69 /* That's it! */
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70 return(0);
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71 }
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72 void SDL_QuitQuit(void)
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73 {
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74 #ifndef NO_SIGNAL_H
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75 void (*ohandler)(int);
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76
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77 ohandler = signal(SIGINT, SIG_DFL);
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78 if ( ohandler != SDL_HandleSIG )
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79 signal(SIGINT, ohandler);
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80 ohandler = signal(SIGTERM, SIG_DFL);
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81 if ( ohandler != SDL_HandleSIG )
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82 signal(SIGTERM, ohandler);
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83 #endif /* NO_SIGNAL_H */
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84 }
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85
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86 /* This function returns 1 if it's okay to close the application window */
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87 int SDL_PrivateQuit(void)
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88 {
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89 int posted;
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90
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91 posted = 0;
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92 if ( SDL_ProcessEvents[SDL_QUIT] == SDL_ENABLE ) {
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93 SDL_Event event;
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94 event.type = SDL_QUIT;
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95 if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
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96 posted = 1;
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97 SDL_PushEvent(&event);
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98 }
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99 }
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100 return(posted);
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101 }