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Annotation of kernel/mach/error.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /*
        !            26:  * Copyright (c) 1995, 1994, 1993, 1992, 1991, 1990  
        !            27:  * Open Software Foundation, Inc. 
        !            28:  *  
        !            29:  * Permission to use, copy, modify, and distribute this software and 
        !            30:  * its documentation for any purpose and without fee is hereby granted, 
        !            31:  * provided that the above copyright notice appears in all copies and 
        !            32:  * that both the copyright notice and this permission notice appear in 
        !            33:  * supporting documentation, and that the name of ("OSF") or Open Software 
        !            34:  * Foundation not be used in advertising or publicity pertaining to 
        !            35:  * distribution of the software without specific, written prior permission. 
        !            36:  *  
        !            37:  * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 
        !            38:  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
        !            39:  * FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL OSF BE LIABLE FOR ANY 
        !            40:  * SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 
        !            41:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 
        !            42:  * ACTION OF CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING 
        !            43:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE 
        !            44:  */
        !            45: /*
        !            46:  * OSF Research Institute MK6.1 (unencumbered) 1/31/1995
        !            47:  */
        !            48: /* 
        !            49:  * Mach Operating System
        !            50:  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
        !            51:  * All Rights Reserved.
        !            52:  * 
        !            53:  * Permission to use, copy, modify and distribute this software and its
        !            54:  * documentation is hereby granted, provided that both the copyright
        !            55:  * notice and this permission notice appear in all copies of the
        !            56:  * software, derivative works or modified versions, and any portions
        !            57:  * thereof, and that both notices appear in supporting documentation.
        !            58:  * 
        !            59:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            60:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            61:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            62:  * 
        !            63:  * Carnegie Mellon requests users of this software to return to
        !            64:  * 
        !            65:  *  Software Distribution Coordinator  or  [email protected]
        !            66:  *  School of Computer Science
        !            67:  *  Carnegie Mellon University
        !            68:  *  Pittsburgh PA 15213-3890
        !            69:  * 
        !            70:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            71:  * the rights to redistribute these changes.
        !            72:  */
        !            73: /*
        !            74:  * File:       mach/error.h
        !            75:  * Purpose:
        !            76:  *     error module definitions
        !            77:  *
        !            78:  */
        !            79: 
        !            80: #ifndef        _MACH_ERROR_H_
        !            81: #define _MACH_ERROR_H_
        !            82: #include <mach/kern_return.h>
        !            83: 
        !            84: /*
        !            85:  *     error number layout as follows:
        !            86:  *
        !            87:  *     hi                                     lo
        !            88:  *     | system(6) | subsystem(12) | code(14) |
        !            89:  */
        !            90: 
        !            91: 
        !            92: #define        err_none                (mach_error_t)0
        !            93: #define ERR_SUCCESS            (mach_error_t)0
        !            94: #define        ERR_ROUTINE_NIL         (mach_error_fn_t)0
        !            95: 
        !            96: 
        !            97: #define        err_system(x)           (((x)&0x3f)<<26)
        !            98: #define err_sub(x)             (((x)&0xfff)<<14)
        !            99: 
        !           100: #define err_get_system(err)    (((err)>>26)&0x3f)
        !           101: #define err_get_sub(err)       (((err)>>14)&0xfff)
        !           102: #define err_get_code(err)      ((err)&0x3fff)
        !           103: 
        !           104: #define system_emask           (err_system(0x3f))
        !           105: #define sub_emask              (err_sub(0xfff))
        !           106: #define code_emask             (0x3fff)
        !           107: 
        !           108: 
        !           109: /*     major error systems     */
        !           110: #define        err_kern                err_system(0x0)         /* kernel */
        !           111: #define        err_us                  err_system(0x1)         /* user space library */
        !           112: #define        err_server              err_system(0x2)         /* user space servers */
        !           113: #define        err_ipc                 err_system(0x3)         /* old ipc errors */
        !           114: #define err_mach_ipc           err_system(0x4)         /* mach-ipc errors */
        !           115: #define err_local              err_system(0x3e)        /* user defined errors */
        !           116: #define        err_ipc_compat          err_system(0x3f)        /* (compatibility) mach-ipc errors */
        !           117: 
        !           118: #define        err_max_system          0x3f
        !           119: 
        !           120: 
        !           121: /*     unix errors get lumped into one subsystem  */
        !           122: #define        unix_err(errno)         (err_kern|err_sub(3)|errno)
        !           123: 
        !           124: typedef        kern_return_t   mach_error_t;
        !           125: typedef mach_error_t   (* mach_error_fn_t)( void );
        !           126: 
        !           127: #endif /* _MACH_ERROR_H_ */

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