1/*
2 * Copyright (c) 2003-2004 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/*
33 * Mach Operating System
34 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
35 * All Rights Reserved.
36 *
37 * Permission to use, copy, modify and distribute this software and its
38 * documentation is hereby granted, provided that both the copyright
39 * notice and this permission notice appear in all copies of the
40 * software, derivative works or modified versions, and any portions
41 * thereof, and that both notices appear in supporting documentation.
42 *
43 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
44 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
45 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
46 *
47 * Carnegie Mellon requests users of this software to return to
48 *
49 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
50 *  School of Computer Science
51 *  Carnegie Mellon University
52 *  Pittsburgh PA 15213-3890
53 *
54 * any improvements or extensions that they make and grant Carnegie Mellon
55 * the rights to redistribute these changes.
56 */
57
58#include <mach/mach.h>
59#include <stdlib.h>
60#include "externs.h"
61
62mach_port_t	bootstrap_port = MACH_PORT_NULL;
63mach_port_t	name_server_port = MACH_PORT_NULL;
64mach_port_t	environment_port = MACH_PORT_NULL;
65mach_port_t	service_port = MACH_PORT_NULL;
66semaphore_t	clock_sem = MACH_PORT_NULL;
67mach_port_t	clock_port = MACH_PORT_NULL;
68mach_port_t thread_recycle_port = MACH_PORT_NULL;
69
70void
71mach_init_ports(void)
72{
73	mach_port_array_t	ports;
74	mach_msg_type_number_t	ports_count;
75	kern_return_t		kr;
76	host_t			host;
77
78	/*
79	 *	Find those ports important to every task.
80	 */
81	kr = task_get_special_port(mach_task_self(),
82				   TASK_BOOTSTRAP_PORT,
83				   &bootstrap_port);
84	if (kr != KERN_SUCCESS)
85	    return;
86
87        /* Get the clock service port for nanosleep */
88	host = mach_host_self();
89        kr = host_get_clock_service(host, SYSTEM_CLOCK, &clock_port);
90        if (kr != KERN_SUCCESS) {
91            abort();
92	}
93        kr = semaphore_create(mach_task_self(), &clock_sem, SYNC_POLICY_FIFO, 0);
94        if (kr != KERN_SUCCESS) {
95            abort();
96        }
97	mach_port_deallocate(mach_task_self(), host);
98        kr = mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &thread_recycle_port);
99        if (kr != KERN_SUCCESS) {
100            abort();
101        }
102
103	/*
104	 *	Find the options service ports.
105	 *	XXX - Don't need these on Darwin, should go away.
106	 */
107	kr = mach_ports_lookup(mach_task_self(), &ports,
108			       &ports_count);
109	if (kr == KERN_SUCCESS) {
110		if (ports_count >= MACH_PORTS_SLOTS_USED) {
111			name_server_port = ports[NAME_SERVER_SLOT];
112			environment_port = ports[ENVIRONMENT_SLOT];
113			service_port     = ports[SERVICE_SLOT];
114		}
115
116		/* get rid of out-of-line data */
117		(void) vm_deallocate(mach_task_self(),
118			     (vm_offset_t) ports,
119			     (vm_size_t) (ports_count * sizeof *ports));
120	}
121}
122
123#ifdef notdef
124/* will have problems with dylib build --> not needed anyway */
125#ifndef	lint
126/*
127 *	Routines which our library must suck in, to avoid
128 *	a later library from referencing them and getting
129 *	the wrong version.
130 */
131extern void _replacements(void);
132
133void
134_replacements(void)
135{
136	(void)sbrk(0);			/* Pull in our sbrk/brk */
137	(void)malloc(0);		/* Pull in our malloc package */
138}
139#endif	/* lint */
140#endif /* notdef */
141