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      1 /*
      2     SDL - Simple DirectMedia Layer
      3     Copyright (C) 1997-2012 Sam Lantinga
      4 
      5     This library is free software; you can redistribute it and/or
      6     modify it under the terms of the GNU Lesser General Public
      7     License as published by the Free Software Foundation; either
      8     version 2.1 of the License, or (at your option) any later version.
      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
     13     Lesser General Public License for more details.
     14 
     15     You should have received a copy of the GNU Lesser General Public
     16     License along with this library; if not, write to the Free Software
     17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     18 
     19     Sam Lantinga
     20     slouken (at) libsdl.org
     21 */
     22 #include "SDL_config.h"
     23 
     24 /* Handle the BeApp specific portions of the application */
     25 
     26 #include <AppKit.h>
     27 #include <storage/Path.h>
     28 #include <storage/Entry.h>
     29 #include <unistd.h>
     30 
     31 #include "SDL_BeApp.h"
     32 #include "SDL_thread.h"
     33 #include "SDL_timer.h"
     34 #include "SDL_error.h"
     35 
     36 /* Flag to tell whether or not the Be application is active or not */
     37 int SDL_BeAppActive = 0;
     38 static SDL_Thread *SDL_AppThread = NULL;
     39 
     40 static int StartBeApp(void *unused)
     41 {
     42   if(!be_app) {
     43 	BApplication *App;
     44 
     45 	App = new BApplication("application/x-SDL-executable");
     46 
     47 	App->Run();
     48 	delete App;
     49   }
     50  return(0);
     51 }
     52 
     53 /* Initialize the Be Application, if it's not already started */
     54 int SDL_InitBeApp(void)
     55 {
     56 	/* Create the BApplication that handles appserver interaction */
     57 	if ( SDL_BeAppActive <= 0 ) {
     58 		SDL_AppThread = SDL_CreateThread(StartBeApp, NULL);
     59 		if ( SDL_AppThread == NULL ) {
     60 			SDL_SetError("Couldn't create BApplication thread");
     61 			return(-1);
     62 		}
     63 
     64 		/* Change working to directory to that of executable */
     65 		app_info info;
     66 		if (B_OK == be_app->GetAppInfo(&info)) {
     67 			entry_ref ref = info.ref;
     68 			BEntry entry;
     69 			if (B_OK == entry.SetTo(&ref)) {
     70 				BPath path;
     71 				if (B_OK == path.SetTo(&entry)) {
     72 					if (B_OK == path.GetParent(&path)) {
     73 						chdir(path.Path());
     74 					}
     75 				}
     76 			}
     77 		}
     78 
     79 		do {
     80 			SDL_Delay(10);
     81 		} while ( (be_app == NULL) || be_app->IsLaunching() );
     82 
     83 		/* Mark the application active */
     84 		SDL_BeAppActive = 0;
     85 	}
     86 
     87 	/* Increment the application reference count */
     88 	++SDL_BeAppActive;
     89 
     90 	/* The app is running, and we're ready to go */
     91  return(0);
     92 }
     93 
     94 /* Quit the Be Application, if there's nothing left to do */
     95 void SDL_QuitBeApp(void)
     96 {
     97 	/* Decrement the application reference count */
     98 	--SDL_BeAppActive;
     99 
    100 	/* If the reference count reached zero, clean up the app */
    101 	if ( SDL_BeAppActive == 0 ) {
    102 		if ( SDL_AppThread != NULL ) {
    103 			if ( be_app != NULL ) { /* Not tested */
    104 				be_app->PostMessage(B_QUIT_REQUESTED);
    105 			}
    106 			SDL_WaitThread(SDL_AppThread, NULL);
    107 			SDL_AppThread = NULL;
    108 		}
    109 		/* be_app should now be NULL since be_app has quit */
    110 	}
    111 }
    112