osfmk/kern/host.h

   1 /*
   2  * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * @OSF_COPYRIGHT@
  27  */
  28 /*
  29  * Mach Operating System
  30  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
  31  * All Rights Reserved.
  32  *
  33  * Permission to use, copy, modify and distribute this software and its
  34  * documentation is hereby granted, provided that both the copyright
  35  * notice and this permission notice appear in all copies of the
  36  * software, derivative works or modified versions, and any portions
  37  * thereof, and that both notices appear in supporting documentation.
  38  *
  39  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  40  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  41  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  42  *
  43  * Carnegie Mellon requests users of this software to return to
  44  *
  45  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  46  *  School of Computer Science
  47  *  Carnegie Mellon University
  48  *  Pittsburgh PA 15213-3890
  49  *
  50  * any improvements or extensions that they make and grant Carnegie Mellon
  51  * the rights to redistribute these changes.
  52  */
  53
  54 /*
  55  *      kern/host.h
  56  *
  57  *      Definitions for host data structures.
  58  *
  59  */
  60
  61 #ifndef _KERN_HOST_H_
  62 #define _KERN_HOST_H_
  63
  64 #include <mach/mach_types.h>
  65
  66 #include <sys/appleapiopts.h>
  67
  68 #ifdef  __APPLE_API_PRIVATE
  69
  70 #ifdef MACH_KERNEL_PRIVATE
  71 #include <kern/lock.h>
  72 #include <kern/exception.h>
  73 #include <mach/exception_types.h>
  74 #include <mach/host_special_ports.h>
  75 #include <kern/kern_types.h>
  76
  77
  78 struct  host {
  79         decl_mutex_data(,lock)          /* lock to protect exceptions */
  80         ipc_port_t special[HOST_MAX_SPECIAL_PORT + 1];
  81         struct exception_action exc_actions[EXC_TYPES_COUNT];
  82 };
  83
  84 typedef struct host     host_data_t;
  85
  86 extern host_data_t      realhost;
  87
  88 #define host_lock(host)         mutex_lock(&(host)->lock)
  89 #define host_unlock(host)       mutex_unlock(&(host)->lock)
  90
  91 #endif /* MACH_KERNEL_PRIVATE */
  92
  93 #endif  /* __APPLE_API_PRIVATE */
  94
  95 /*
  96  * Access routines for inside the kernel.
  97  */
  98 extern host_t host_self(void);
  99 extern host_priv_t host_priv_self(void);
 100 extern host_security_t host_security_self(void);
 101
 102 #endif  /* _KERN_HOST_H_ */