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/*
* Mach Operating System
* Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* File: mach/error.h
* Purpose:
* error module definitions
*
*/
#ifndef _MACH_ERROR_H_
#define _MACH_ERROR_H_
#include <mach/kern_return.h>
/*
* error number layout as follows:
*
* hi lo
* | system(6) | subsystem(12) | code(14) |
*/
#define err_none (mach_error_t)0
#define ERR_SUCCESS (mach_error_t)0
#define ERR_ROUTINE_NIL (mach_error_fn_t)0
#define err_system(x) (((x)&0x3f)<<26)
#define err_sub(x) (((x)&0xfff)<<14)
#define err_get_system(err) (((err)>>26)&0x3f)
#define err_get_sub(err) (((err)>>14)&0xfff)
#define err_get_code(err) ((err)&0x3fff)
#define system_emask (err_system(0x3f))
#define sub_emask (err_sub(0xfff))
#define code_emask (0x3fff)
/* Mach error systems */
#define err_kern err_system(0x0) /* kernel */
#define err_us err_system(0x1) /* user space library */
#define err_server err_system(0x2) /* user space servers */
#define err_ipc err_system(0x3) /* old ipc errors */
#define err_mach_ipc err_system(0x4) /* mach-ipc errors */
#define err_bootstrap err_system(0x5) /* bootstrap errors */
#define err_hurd err_system(0x10) /* GNU Hurd server errors */
#define err_local err_system(0x3e) /* user defined errors */
#define err_ipc_compat err_system(0x3f) /* (compatibility) mach-ipc errors */
#define err_max_system 0x3f
/* special old "subsystems" that don't really follow the above rules */
#define err_mig -300
#define err_exec 6000
/* unix errors get lumped into one subsystem */
#define err_unix (err_kern|err_sub(3))
#define unix_err(errno) (err_kern|err_sub(3)|errno)
/* MS-DOS extended error codes */
#define err_dos (err_kern|err_sub(0xd05))
/* Flux OS error systems */
#define err_fluke err_system(0x20) /* Fluke API */
#ifndef ASSEMBLER
typedef kern_return_t mach_error_t;
typedef mach_error_t (* mach_error_fn_t)();
#endif /* ASSEMBLER */
#endif /* _MACH_ERROR_H_ */
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