/*
    This code (with some modifications) is from GNU Parted
    Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
*/

#ifndef EXCEPTION_H
#define EXCEPTION_H

enum reiserfs_exception_type {
    EXCEPTION_INFORMATION 			= 1,
    EXCEPTION_WARNING 				= 2,
    EXCEPTION_ERROR 				= 3,
    EXCEPTION_FATAL 				= 4,
    EXCEPTION_BUG 				= 5,
    EXCEPTION_NO_FEATURE 			= 6
};

typedef enum reiserfs_exception_type reiserfs_exception_type_t;

enum reiserfs_exception_option {
    EXCEPTION_UNHANDLED 			= 1 << 0,
    EXCEPTION_YES 				= 1 << 1,
    EXCEPTION_NO 				= 1 << 2,
    EXCEPTION_OK 				= 1 << 3,
    EXCEPTION_RETRY 				= 1 << 4,
    EXCEPTION_IGNORE 				= 1 << 5,
    EXCEPTION_CANCEL 				= 1 << 6
};

typedef enum reiserfs_exception_option reiserfs_exception_option_t;

#define EXCEPTION_OK_CANCEL			(EXCEPTION_OK + EXCEPTION_CANCEL)
#define EXCEPTION_YES_NO 			(EXCEPTION_YES + EXCEPTION_NO)
#define EXCEPTION_YES_NO_CANCEL			(EXCEPTION_YES_NO + EXCEPTION_CANCEL)
#define EXCEPTION_IGNORE_CANCEL			(EXCEPTION_IGNORE + EXCEPTION_CANCEL)
#define EXCEPTION_RETRY_CANCEL			(EXCEPTION_RETRY + EXCEPTION_CANCEL)
#define EXCEPTION_RETRY_IGNORE_CANCEL		(EXCEPTION_RETRY + EXCEPTION_IGNORE_CANCEL)

#define EXCEPTION_OPTION_FIRST			EXCEPTION_FIX
#define EXCEPTION_OPTION_LAST			EXCEPTION_CANCEL

struct reiserfs_exception {
    char *message;
    reiserfs_exception_type_t type;
    reiserfs_exception_option_t options;
};

typedef struct reiserfs_exception reiserfs_exception_t;

typedef reiserfs_exception_option_t (*reiserfs_exception_handler_t) 
    (reiserfs_exception_t *ex);

extern char *libreiserfs_exception_type_string(reiserfs_exception_type_t type);
extern reiserfs_exception_type_t libreiserfs_exception_type(reiserfs_exception_t *ex);

extern char *libreiserfs_exception_option_string(reiserfs_exception_option_t opt);
extern reiserfs_exception_option_t libreiserfs_exception_option(reiserfs_exception_t *ex);

extern char *libreiserfs_exception_message(reiserfs_exception_t *ex);

extern void libreiserfs_exception_set_handler(reiserfs_exception_handler_t handler);

extern reiserfs_exception_option_t libreiserfs_exception_throw(
    reiserfs_exception_type_t type, reiserfs_exception_option_t opt, 
    const char* message, ...);
	
extern reiserfs_exception_option_t libreiserfs_exception_rethrow(void);

extern void libreiserfs_exception_catch(void);
extern void libreiserfs_exception_fetch_all(void);
extern void libreiserfs_exception_leave_all(void);

#endif