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Annotation of XNU/osfmk/mach/error.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * @OSF_COPYRIGHT@
        !            24:  */
        !            25: /*
        !            26:  * HISTORY
        !            27:  * 
        !            28:  * Revision 1.1.1.1  1998/09/22 21:05:29  wsanchez
        !            29:  * Import of Mac OS X kernel (~semeria)
        !            30:  *
        !            31:  * Revision 1.1.1.1  1998/03/07 02:25:45  wsanchez
        !            32:  * Import of OSF Mach kernel (~mburg)
        !            33:  *
        !            34:  * Revision 1.2.10.2  1995/02/23  17:51:15  alanl
        !            35:  *     Merge with DIPC2_SHARED.
        !            36:  *     [1995/01/03  21:49:04  alanl]
        !            37:  *
        !            38:  * Revision 1.2.10.1  1994/09/23  02:35:28  ezf
        !            39:  *     change marker to not FREE
        !            40:  *     [1994/09/22  21:39:26  ezf]
        !            41:  * 
        !            42:  * Revision 1.2.8.1  1994/08/04  02:27:36  mmp
        !            43:  *     NOTE: file was moved back to b11 version for dipc2_shared.
        !            44:  *     Added DIPC error system.
        !            45:  *     [1994/05/11  17:36:37  alanl]
        !            46:  * 
        !            47:  * Revision 1.2.2.3  1993/08/12  21:59:50  jvs
        !            48:  *     Correctly prototype mach_error_fn_t typedef.  9523
        !            49:  *     [1993/08/12  21:57:56  jvs]
        !            50:  * 
        !            51:  * Revision 1.2.2.2  1993/06/09  02:39:58  gm
        !            52:  *     Added to OSF/1 R1.3 from NMK15.0.
        !            53:  *     [1993/06/02  21:15:47  jeffc]
        !            54:  * 
        !            55:  * Revision 1.2  1993/04/19  16:33:02  devrcs
        !            56:  *     make endif tags ansi compliant/include files
        !            57:  *     [1993/02/20  21:44:37  david]
        !            58:  * 
        !            59:  * Revision 1.1  1992/09/30  02:30:35  robert
        !            60:  *     Initial revision
        !            61:  * 
        !            62:  * $EndLog$
        !            63:  */
        !            64: /* CMU_HIST */
        !            65: /*
        !            66:  * Revision 2.4  91/05/14  16:51:24  mrt
        !            67:  *     Correcting copyright
        !            68:  * 
        !            69:  * Revision 2.3  91/02/05  17:31:48  mrt
        !            70:  *     Changed to new Mach copyright
        !            71:  *     [91/02/01  17:16:50  mrt]
        !            72:  * 
        !            73:  * Revision 2.2  90/06/02  14:57:47  rpd
        !            74:  *     Added err_mach_ipc for new IPC.
        !            75:  *     [90/03/26  22:28:42  rpd]
        !            76:  * 
        !            77:  * Revision 2.1  89/08/03  16:02:07  rwd
        !            78:  * Created.
        !            79:  * 
        !            80:  * Revision 2.4  89/02/25  18:13:18  gm0w
        !            81:  *     Changes for cleanup.
        !            82:  * 
        !            83:  * Revision 2.3  89/02/07  00:51:57  mwyoung
        !            84:  * Relocated from sys/error.h
        !            85:  * 
        !            86:  * Revision 2.2  88/10/18  00:37:31  mwyoung
        !            87:  *     Added {system,sub and code}_emask 
        !            88:  *     [88/10/17  17:06:58  mrt]
        !            89:  * 
        !            90:  *     Added {system,sub and code}_emask 
        !            91:  *
        !            92:  *  12-May-88 Mary Thompson (mrt) at Carnegie Mellon
        !            93:  *     Changed mach_error_t from unsigned int to kern_return_t
        !            94:  *     which is a 32 bit integer regardless of machine type.
        !            95:  *      insigned int was incompatible with old usages of mach_error.
        !            96:  *
        !            97:  *  10-May-88 Douglas Orr (dorr) at Carnegie-Mellon University
        !            98:  *     Missing endif replaced
        !            99:  *
        !           100:  *   5-May-88 Mary Thompson (mrt) at Carnegie Mellon
        !           101:  *     Changed typedef of mach_error_t from long to unsigned int
        !           102:  *     to keep our Camelot users happy. Also moved the nonkernel
        !           103:  *     function declarations from here to mach_error.h.
        !           104:  *
        !           105:  *  10-Feb-88 Douglas Orr (dorr) at Carnegie-Mellon University
        !           106:  *     Created.
        !           107:  *
        !           108:  */
        !           109: /* CMU_ENDHIST */
        !           110: /* 
        !           111:  * Mach Operating System
        !           112:  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
        !           113:  * All Rights Reserved.
        !           114:  * 
        !           115:  * Permission to use, copy, modify and distribute this software and its
        !           116:  * documentation is hereby granted, provided that both the copyright
        !           117:  * notice and this permission notice appear in all copies of the
        !           118:  * software, derivative works or modified versions, and any portions
        !           119:  * thereof, and that both notices appear in supporting documentation.
        !           120:  * 
        !           121:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !           122:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !           123:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !           124:  * 
        !           125:  * Carnegie Mellon requests users of this software to return to
        !           126:  * 
        !           127:  *  Software Distribution Coordinator  or  [email protected]
        !           128:  *  School of Computer Science
        !           129:  *  Carnegie Mellon University
        !           130:  *  Pittsburgh PA 15213-3890
        !           131:  * 
        !           132:  * any improvements or extensions that they make and grant Carnegie Mellon
        !           133:  * the rights to redistribute these changes.
        !           134:  */
        !           135: /*
        !           136:  */
        !           137: /*
        !           138:  * File:       mach/error.h
        !           139:  * Purpose:
        !           140:  *     error module definitions
        !           141:  *
        !           142:  */
        !           143: 
        !           144: #ifndef        ERROR_H_
        !           145: #define ERROR_H_
        !           146: #include <mach/kern_return.h>
        !           147: 
        !           148: /*
        !           149:  *     error number layout as follows:
        !           150:  *
        !           151:  *     hi                                     lo
        !           152:  *     | system(6) | subsystem(12) | code(14) |
        !           153:  */
        !           154: 
        !           155: 
        !           156: #define        err_none                (mach_error_t)0
        !           157: #define ERR_SUCCESS            (mach_error_t)0
        !           158: #define        ERR_ROUTINE_NIL         (mach_error_fn_t)0
        !           159: 
        !           160: 
        !           161: #define        err_system(x)           (((x)&0x3f)<<26)
        !           162: #define err_sub(x)             (((x)&0xfff)<<14)
        !           163: 
        !           164: #define err_get_system(err)    (((err)>>26)&0x3f)
        !           165: #define err_get_sub(err)       (((err)>>14)&0xfff)
        !           166: #define err_get_code(err)      ((err)&0x3fff)
        !           167: 
        !           168: #define system_emask           (err_system(0x3f))
        !           169: #define sub_emask              (err_sub(0xfff))
        !           170: #define code_emask             (0x3fff)
        !           171: 
        !           172: 
        !           173: /*     major error systems     */
        !           174: #define        err_kern                err_system(0x0)         /* kernel */
        !           175: #define        err_us                  err_system(0x1)         /* user space library */
        !           176: #define        err_server              err_system(0x2)         /* user space servers */
        !           177: #define        err_ipc                 err_system(0x3)         /* old ipc errors */
        !           178: #define err_mach_ipc           err_system(0x4)         /* mach-ipc errors */
        !           179: #define        err_dipc                err_system(0x7)         /* distributed ipc */
        !           180: #define err_local              err_system(0x3e)        /* user defined errors */
        !           181: #define        err_ipc_compat          err_system(0x3f)        /* (compatibility) mach-ipc errors */
        !           182: 
        !           183: #define        err_max_system          0x3f
        !           184: 
        !           185: 
        !           186: /*     unix errors get lumped into one subsystem  */
        !           187: #define        unix_err(errno)         (err_kern|err_sub(3)|errno)
        !           188: 
        !           189: typedef        kern_return_t   mach_error_t;
        !           190: typedef mach_error_t   (* mach_error_fn_t)( void );
        !           191: 
        !           192: #endif /* ERROR_H_ */

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