apps/plugins/lib/pluginlib_exit.h

   1 /***************************************************************************
   2 *             __________               __   ___.
   3 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7 *                     \/            \/     \/    \/            \/
   8 * $Id$
   9 *
  10 * Copyright (C) 2009 by Maurus Cuelenaere
  11 *
  12 * This program is free software; you can redistribute it and/or
  13 * modify it under the terms of the GNU General Public License
  14 * as published by the Free Software Foundation; either version 2
  15 * of the License, or (at your option) any later version.
  16 *
  17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18 * KIND, either express or implied.
  19 *
  20 ****************************************************************************/
  21
  22 #ifndef __PLUGINLIB_EXIT_H__
  23 #define __PLUGINLIB_EXIT_H__
  24
  25 #include "config.h"
  26 #ifndef SIMULATOR
  27 #include "../../codecs/lib/setjmp.h"
  28 #else
  29 #include <setjmp.h>
  30 #endif
  31
  32 /* PLUGINLIB_EXIT_INIT needs to be placed as the first line in plugin_start */
  33 #define PLUGINLIB_EXIT_INIT switch(setjmp(__exit_env))   \
  34                             {                            \
  35                                 case 1:                  \
  36                                     return PLUGIN_OK;    \
  37                                 case 2:                  \
  38                                     return PLUGIN_ERROR; \
  39                                 case 0:                  \
  40                                 default:                 \
  41                                     break;               \
  42                             }
  43
  44 extern jmp_buf __exit_env;
  45 #define exit(status) longjmp(__exit_env, status != 0 ? 2 : 1)
  46
  47 #endif /*  __PLUGINLIB_EXIT_H__ */