1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/*
Copyright (C) 1994 Free Software Foundation
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
The GNU Hurd is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with the GNU Hurd; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Written by Michael I. Bushnell. */
#include "priv.h"
#include <device/device.h>
mach_port_t diskfs_host_priv;
mach_port_t diskfs_master_device;
mach_port_t diskfs_default_pager;
mach_port_t diskfs_auth_server_port;
volatile struct mapped_time_value *diskfs_mtime;
spin_lock_t diskfs_node_refcnt_lock = SPIN_LOCK_INITIALIZER;
spin_lock_t _diskfs_control_lock = SPIN_LOCK_INITIALIZER;
int _diskfs_ncontrol_ports = 0;
/* XXX */
mach_port_t _diskfs_dotdot_file = MACH_PORT_NULL;
/* Call this after arguments have been parsed to initialize the
library. */
mach_port_t
diskfs_init_diskfs (mach_port_t bootstrap)
{
mach_port_t host, dev;
memory_object_t obj;
device_t timedev;
mach_port_t realnode;
error_t err;
_libports_initialize (); /* XXX */
if (diskfs_host_priv == MACH_PORT_NULL
|| diskfs_master_device == MACH_PORT_NULL)
{
get_privileged_ports (&host, &dev);
if (diskfs_host_priv == MACH_PORT_NULL)
diskfs_host_priv = host;
else
mach_port_deallocate (mach_task_self (), host);
if (diskfs_master_device == MACH_PORT_NULL)
diskfs_master_device = dev;
else
mach_port_deallocate (mach_task_self (), dev);
}
assert (diskfs_master_device != MACH_PORT_NULL); /* XXX */
diskfs_default_pager = MACH_PORT_NULL;
vm_set_default_memory_manager (diskfs_host_priv, &diskfs_default_pager);
if (bootstrap != MACH_PORT_NULL)
{
_diskfs_ncontrol_ports++;
err = fsys_startup (bootstrap,
ports_allocate_port (sizeof (struct port_info),
PT_CTL),
MACH_MSG_TYPE_MAKE_SEND,
&realnode);
if (err)
realnode = MACH_PORT_NULL;
}
else
realnode = MACH_PORT_NULL;
device_open (diskfs_master_device, 0, "time", &timedev);
device_map (timedev, VM_PROT_READ, 0, sizeof (mapped_time_value_t), &obj, 0);
vm_map (mach_task_self (), (vm_address_t *)&diskfs_mtime,
sizeof (mapped_time_value_t), 0, 1, obj, 0, 0, VM_PROT_READ,
VM_PROT_READ, VM_INHERIT_NONE);
mach_port_deallocate (mach_task_self (), timedev);
mach_port_deallocate (mach_task_self (), obj);
/* diskfs_auth_server_port = getauth (); */
return realnode;
}
void
_diskfs_control_clean (void *arg)
{
spin_lock (&_diskfs_control_lock);
_diskfs_ncontrol_ports--;
spin_unlock (&_diskfs_control_lock);
}
|
