mach.subproj/headers.subproj/mach_init.h

   1 /*
   2  * Copyright (c) 1999 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  * Mach Operating System
  24  * Copyright (c) 1991,1990,1989,1988,1987,1986 Carnegie Mellon University
  25  * All Rights Reserved.
  26  *
  27  * Permission to use, copy, modify and distribute this software and its
  28  * documentation is hereby granted, provided that both the copyright
  29  * notice and this permission notice appear in all copies of the
  30  * software, derivative works or modified versions, and any portions
  31  * thereof, and that both notices appear in supporting documentation.
  32  *
  33  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  34  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  35  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  36  *
  37  * Carnegie Mellon requests users of this software to return to
  38  *
  39  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  40  *  School of Computer Science
  41  *  Carnegie Mellon University
  42  *  Pittsburgh PA 15213-3890
  43  *
  44  * any improvements or extensions that they make and grant Carnegie Mellon
  45  * the rights to redistribute these changes.
  46  */
  47
  48 /*
  49  *      Items provided by the Mach environment initialization.
  50  */
  51
  52 #ifndef _MACH_INIT_
  53 #define _MACH_INIT_     1
  54
  55 #include <mach/mach_types.h>
  56 #include <stdarg.h>
  57
  58 /*
  59  *      Kernel-related ports; how a task/thread controls itself
  60  */
  61
  62 extern  mach_port_t     mach_task_self_;
  63
  64 extern mach_port_t mach_task_self(void);
  65 extern mach_port_t mach_host_self(void);
  66 extern mach_port_t mach_thread_self(void);
  67
  68 #define mach_task_self() mach_task_self_
  69
  70 #define current_task()  mach_task_self()
  71
  72 #include <mach/mach_traps.h>
  73 /*
  74  *      Other important ports in the Mach user environment
  75  */
  76
  77 extern  mach_port_t     bootstrap_port;
  78 extern  mach_port_t     name_server_port;
  79 extern  mach_port_t     environment_port;
  80 extern  mach_port_t     service_port;
  81
  82 /*
  83  *      Where these ports occur in the "mach_ports_register"
  84  *      collection... only servers or the runtime library need know.
  85  */
  86
  87 #define NAME_SERVER_SLOT        0
  88 #define ENVIRONMENT_SLOT        1
  89 #define SERVICE_SLOT            2
  90
  91 #define MACH_PORTS_SLOTS_USED   3
  92
  93 /*
  94  *      Globally interesting numbers.
  95  *      These macros assume vm_page_size is a power-of-2.
  96  */
  97
  98 extern  vm_size_t       vm_page_size;
  99
 100 #define trunc_page(x)   ((x) & (~(vm_page_size - 1)))
 101 #define round_page(x)   trunc_page((x) + (vm_page_size - 1))
 102
 103 /*
 104  *      fprintf_stderr uses vprintf_stderr_func to produce
 105  *      error messages, this can be overridden by a user
 106  *      application to point to a user-specified output function
 107  */
 108
 109 extern int (*vprintf_stderr_func)(const char *format, va_list ap);
 110
 111
 112 #endif  /* _MACH_INIT_ */