diff options
Diffstat (limited to 'apps/plugins/lib/pluginlib_exit.h')
| -rw-r--r-- | apps/plugins/lib/pluginlib_exit.h | 48 |
1 files changed, 25 insertions, 23 deletions
diff --git a/apps/plugins/lib/pluginlib_exit.h b/apps/plugins/lib/pluginlib_exit.h index 8c7f0c4..411d075 100644 --- a/apps/plugins/lib/pluginlib_exit.h +++ b/apps/plugins/lib/pluginlib_exit.h @@ -22,31 +22,33 @@ #ifndef __PLUGINLIB_EXIT_H__ #define __PLUGINLIB_EXIT_H__ -#include "config.h" -#include <setjmp.h> +/* make sure we are in sync with the real definitions, especially on + * hosted systems */ +#include <stdlib.h> +#include "gcc_extensions.h" -#define _PLUGINLIB_EXIT_INIT(atexit) switch(setjmp(__exit_env)) \ - { \ - case 1: \ - atexit \ - return PLUGIN_OK; \ - case 2: \ - atexit \ - return PLUGIN_ERROR; \ - case 0: \ - default: \ - break; \ - } +/* these are actually implemented in plugin_crt0.c which all plugins link */ +extern int atexit(void (*func)(void)); +extern void exit(int status) NORETURN_ATTR; +/* these don't call the exit handlers */ +extern void _exit(int status) NORETURN_ATTR; +/* C99 version */ +#define _Exit _exit -/* Either PLUGINLIB_EXIT_INIT or PLUGINLIB_EXIT_INIT_ATEXIT needs to be placed - * as the first line in plugin_start. The _ATEXIT version will call the named - * no-argument function when exit() is called before exiting the plugin, to - * allow for cleanup. - */ -#define PLUGINLIB_EXIT_INIT _PLUGINLIB_EXIT_INIT() -#define PLUGINLIB_EXIT_INIT_ATEXIT(atexit) _PLUGINLIB_EXIT_INIT(atexit();) +#ifndef EXIT_SUCCESS +#define EXIT_SUCCESS 0 +#define EXIT_FAILURE 1 +#endif -extern jmp_buf __exit_env; -#define exit(status) longjmp(__exit_env, status != 0 ? 2 : 1) +/** + * helper function to handle USB connected events coming from + * button_get() + * + * it will exit the plugin if usb is detected, but it will call the atexit func + * before actually showing the usb screen + * + * it additionally handles power off as well, with the same behavior + */ +extern void exit_on_usb(int button); #endif /* __PLUGINLIB_EXIT_H__ */ |