mach/headers/mach_init.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * Mach Operating System
  25  * Copyright (c) 1991,1990,1989,1988,1987,1986 Carnegie Mellon University
  26  * All Rights Reserved.
  27  *
  28  * Permission to use, copy, modify and distribute this software and its
  29  * documentation is hereby granted, provided that both the copyright
  30  * notice and this permission notice appear in all copies of the
  31  * software, derivative works or modified versions, and any portions
  32  * thereof, and that both notices appear in supporting documentation.
  33  *
  34  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  35  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  36  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  37  *
  38  * Carnegie Mellon requests users of this software to return to
  39  *
  40  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  41  *  School of Computer Science
  42  *  Carnegie Mellon University
  43  *  Pittsburgh PA 15213-3890
  44  *
  45  * any improvements or extensions that they make and grant Carnegie Mellon
  46  * the rights to redistribute these changes.
  47  */
  48
  49 /*
  50  *      Items provided by the Mach environment initialization.
  51  */
  52
  53 #ifndef _MACH_INIT_
  54 #define _MACH_INIT_     1
  55
  56 #include <mach/mach_types.h>
  57 #include <stdarg.h>
  58
  59 #include <sys/cdefs.h>
  60
  61 __BEGIN_DECLS
  62 /*
  63  *      Kernel-related ports; how a task/thread controls itself
  64  */
  65
  66 extern  mach_port_t     mach_task_self_;
  67
  68 extern mach_port_t mach_task_self(void);
  69 extern mach_port_t mach_host_self(void);
  70 extern mach_port_t mach_thread_self(void);
  71
  72 #define mach_task_self() mach_task_self_
  73
  74 #define current_task()  mach_task_self()
  75
  76 #include <mach/mach_traps.h>
  77 /*
  78  *      Other important ports in the Mach user environment
  79  */
  80
  81 extern  mach_port_t     bootstrap_port;
  82 extern  mach_port_t     name_server_port;
  83 extern  mach_port_t     environment_port;
  84 extern  mach_port_t     service_port;
  85
  86 /*
  87  *      Where these ports occur in the "mach_ports_register"
  88  *      collection... only servers or the runtime library need know.
  89  */
  90
  91 #define NAME_SERVER_SLOT        0
  92 #define ENVIRONMENT_SLOT        1
  93 #define SERVICE_SLOT            2
  94
  95 #define MACH_PORTS_SLOTS_USED   3
  96
  97 /*
  98  *      Globally interesting numbers.
  99  *      These macros assume vm_page_size is a power-of-2.
 100  */
 101
 102 extern  vm_size_t       vm_page_size;
 103
 104 #define trunc_page(x)   ((x) & (~(vm_page_size - 1)))
 105 #define round_page(x)   trunc_page((x) + (vm_page_size - 1))
 106
 107 /*
 108  *      fprintf_stderr uses vprintf_stderr_func to produce
 109  *      error messages, this can be overridden by a user
 110  *      application to point to a user-specified output function
 111  */
 112
 113 extern int (*vprintf_stderr_func)(const char *format, va_list ap);
 114 __END_DECLS
 115
 116 #endif  /* _MACH_INIT_ */