mach/headers/mach_init.h

   1 /*
   2  * Copyright (c) 1999 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  * Mach Operating System
  27  * Copyright (c) 1991,1990,1989,1988,1987,1986 Carnegie Mellon University
  28  * All Rights Reserved.
  29  *
  30  * Permission to use, copy, modify and distribute this software and its
  31  * documentation is hereby granted, provided that both the copyright
  32  * notice and this permission notice appear in all copies of the
  33  * software, derivative works or modified versions, and any portions
  34  * thereof, and that both notices appear in supporting documentation.
  35  *
  36  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  37  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  38  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  39  *
  40  * Carnegie Mellon requests users of this software to return to
  41  *
  42  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  43  *  School of Computer Science
  44  *  Carnegie Mellon University
  45  *  Pittsburgh PA 15213-3890
  46  *
  47  * any improvements or extensions that they make and grant Carnegie Mellon
  48  * the rights to redistribute these changes.
  49  */
  50
  51 /*
  52  *      Items provided by the Mach environment initialization.
  53  */
  54
  55 #ifndef _MACH_INIT_
  56 #define _MACH_INIT_     1
  57
  58 #include <mach/mach_types.h>
  59 #include <stdarg.h>
  60
  61 #include <sys/cdefs.h>
  62
  63 __BEGIN_DECLS
  64 /*
  65  *      Kernel-related ports; how a task/thread controls itself
  66  */
  67
  68 extern  mach_port_t     mach_task_self_;
  69
  70 extern mach_port_t mach_task_self(void);
  71 extern mach_port_t mach_host_self(void);
  72 extern mach_port_t mach_thread_self(void);
  73
  74 #define mach_task_self() mach_task_self_
  75
  76 #define current_task()  mach_task_self()
  77
  78 #include <mach/mach_traps.h>
  79 /*
  80  *      Other important ports in the Mach user environment
  81  */
  82
  83 extern  mach_port_t     bootstrap_port;
  84 extern  mach_port_t     name_server_port;
  85 extern  mach_port_t     environment_port;
  86 extern  mach_port_t     service_port;
  87
  88 /*
  89  *      Where these ports occur in the "mach_ports_register"
  90  *      collection... only servers or the runtime library need know.
  91  */
  92
  93 #define NAME_SERVER_SLOT        0
  94 #define ENVIRONMENT_SLOT        1
  95 #define SERVICE_SLOT            2
  96
  97 #define MACH_PORTS_SLOTS_USED   3
  98
  99 /*
 100  *      Globally interesting numbers.
 101  *      These macros assume vm_page_size is a power-of-2.
 102  */
 103
 104 extern  vm_size_t       vm_page_size;
 105 extern  vm_size_t       vm_page_mask;
 106 extern  int             vm_page_shift;
 107
 108 #define trunc_page(x)   ((x) & (~(vm_page_size - 1)))
 109 #define round_page(x)   trunc_page((x) + (vm_page_size - 1))
 110
 111 /*
 112  *      fprintf_stderr uses vprintf_stderr_func to produce
 113  *      error messages, this can be overridden by a user
 114  *      application to point to a user-specified output function
 115  */
 116
 117 extern int (*vprintf_stderr_func)(const char *format, va_list ap);
 118 __END_DECLS
 119
 120 #endif  /* _MACH_INIT_ */