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/*
* Mach Operating System
* Copyright (c) 1991,1990,1989,1988,1987,1986 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* Items provided by the Mach environment initialization.
*/
#ifndef _MACH_INIT_
#define _MACH_INIT_ 1
#include <mach/mach_types.h>
/*
* Calls to the Unix emulation to supply privileged ports:
* the privileged host port and the master device port.
*/
#define mach_host_priv_self() task_by_pid(-1)
#define mach_master_device_port() task_by_pid(-2)
/*
* Kernel-related ports; how a task/thread controls itself
*/
extern mach_port_t mach_task_self_;
#define mach_task_self() mach_task_self_
#define current_task() mach_task_self()
/*
* Other important ports in the Mach user environment
*/
extern mach_port_t name_server_port;
extern mach_port_t environment_port;
extern mach_port_t service_port;
/*
* Where these ports occur in the "mach_ports_register"
* collection... only servers or the runtime library need know.
*/
#if MACH_INIT_SLOTS
#define NAME_SERVER_SLOT 0
#define ENVIRONMENT_SLOT 1
#define SERVICE_SLOT 2
#define MACH_PORTS_SLOTS_USED 3
#endif MACH_INIT_SLOTS
/*
* Globally interesting numbers.
* These macros assume vm_page_size is a power-of-2.
*/
extern vm_size_t vm_page_size;
#define trunc_page(x) ((x) &~ (vm_page_size - 1))
#define round_page(x) trunc_page((x) + (vm_page_size - 1))
#endif _MACH_INIT_
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