osfmk/kern/host.h

   1 /*
   2  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31 /*
  32  * Mach Operating System
  33  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
  34  * All Rights Reserved.
  35  *
  36  * Permission to use, copy, modify and distribute this software and its
  37  * documentation is hereby granted, provided that both the copyright
  38  * notice and this permission notice appear in all copies of the
  39  * software, derivative works or modified versions, and any portions
  40  * thereof, and that both notices appear in supporting documentation.
  41  *
  42  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  43  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  44  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  45  *
  46  * Carnegie Mellon requests users of this software to return to
  47  *
  48  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  49  *  School of Computer Science
  50  *  Carnegie Mellon University
  51  *  Pittsburgh PA 15213-3890
  52  *
  53  * any improvements or extensions that they make and grant Carnegie Mellon
  54  * the rights to redistribute these changes.
  55  */
  56
  57 /*
  58  *      kern/host.h
  59  *
  60  *      Definitions for host data structures.
  61  *
  62  */
  63
  64 #ifndef _KERN_HOST_H_
  65 #define _KERN_HOST_H_
  66
  67 #include <mach/mach_types.h>
  68 #include <sys/cdefs.h>
  69
  70 #ifdef  MACH_KERNEL_PRIVATE
  71
  72 #include <kern/locks.h>
  73 #include <kern/exception.h>
  74 #include <mach/exception_types.h>
  75 #include <mach/host_special_ports.h>
  76 #include <kern/kern_types.h>
  77 #include <mach/vm_statistics.h>
  78
  79 struct  host {
  80         decl_lck_mtx_data(,lock)                /* lock to protect exceptions */
  81         ipc_port_t special[HOST_MAX_SPECIAL_PORT + 1];
  82         struct exception_action exc_actions[EXC_TYPES_COUNT];
  83 };
  84
  85 typedef struct host     host_data_t;
  86
  87 extern host_data_t      realhost;
  88
  89 #define host_lock(host)         lck_mtx_lock(&(host)->lock)
  90 #define host_unlock(host)       lck_mtx_unlock(&(host)->lock)
  91
  92 extern vm_extmod_statistics_data_t host_extmod_statistics;
  93
  94 typedef struct {
  95         uint64_t total_user_time;
  96         uint64_t total_system_time;
  97         uint64_t task_interrupt_wakeups;
  98         uint64_t task_platform_idle_wakeups;
  99         uint64_t task_timer_wakeups_bin_1;
 100         uint64_t task_timer_wakeups_bin_2;
 101 } expired_task_statistics_t;
 102
 103 extern expired_task_statistics_t dead_task_statistics;
 104
 105 #endif  /* MACH_KERNEL_PRIVATE */
 106
 107 /*
 108  * Access routines for inside the kernel.
 109  */
 110
 111 __BEGIN_DECLS
 112
 113 extern host_t                   host_self(void);
 114 extern host_priv_t              host_priv_self(void);
 115 extern host_security_t  host_security_self(void);
 116
 117 __END_DECLS
 118
 119 #endif  /* _KERN_HOST_H_ */