From 9f73a01619d233cd3d9eeb236d8c16944b081bc3 Mon Sep 17 00:00:00 2001
From: Maurus Cuelenaere <mcuelenaere@gmail.com>
Date: Wed, 22 Apr 2009 14:31:23 +0000
Subject: Add exit() implementation for plugins

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20775 a1c6a512-1295-4272-9138-f99709370657
---
 apps/plugins/lib/pluginlib_exit.h | 47 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 apps/plugins/lib/pluginlib_exit.h

(limited to 'apps/plugins/lib/pluginlib_exit.h')

diff --git a/apps/plugins/lib/pluginlib_exit.h b/apps/plugins/lib/pluginlib_exit.h
new file mode 100644
index 0000000000..1bad12aed2
--- /dev/null
+++ b/apps/plugins/lib/pluginlib_exit.h
@@ -0,0 +1,47 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* Copyright (C) 2009 by Maurus Cuelenaere
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 2
+* of the License, or (at your option) any later version.
+*
+* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+* KIND, either express or implied.
+*
+****************************************************************************/
+
+#ifndef __PLUGINLIB_EXIT_H__
+#define __PLUGINLIB_EXIT_H__
+
+#include "config.h"
+#ifndef SIMULATOR
+#include "../../codecs/lib/setjmp.h"
+#else
+#include <setjmp.h>
+#endif
+
+/* PLUGINLIB_EXIT_INIT needs to be placed as the first line in plugin_start */
+#define PLUGINLIB_EXIT_INIT switch(setjmp(__exit_env))   \
+                            {                            \
+                                case 1:                  \
+                                    return PLUGIN_OK;    \
+                                case 2:                  \
+                                    return PLUGIN_ERROR; \
+                                case 0:                  \
+                                default:                 \
+                                    break;               \
+                            }
+
+extern jmp_buf __exit_env;
+#define exit(status) longjmp(__exit_env, status != 0 ? 2 : 1)
+
+#endif /*  __PLUGINLIB_EXIT_H__ */
-- 
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