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
|
/*
* Copyright (c) 1999 The University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit 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 GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* Create a memfs and populate it with the bmod contents. Return the
* memfs root directory, but *do not* hand it over to the clientos.
*/
#include <stdio.h>
#include <oskit/fs/dir.h>
#include <oskit/fs/memfs.h>
#include <oskit/startup.h>
#ifdef PTHREADS
/*
* Using the process lock on a BMOD may seem silly.
* The bmod code had the locking ripped out, and this is easier than
* sticking it back in. In any event, the process lock is just a mutex,
* and thats what the old bmod locking did, so its almost a wash.
*/
#include <oskit/com/wrapper.h>
#include <oskit/threads/pthread.h>
void fs_master_lock(void);
void fs_master_unlock(void);
#define start_bmod start_bmod_pthreads
#endif
oskit_dir_t *
start_bmod()
{
oskit_filesystem_t *memfs;
oskit_dir_t *root;
int rc;
rc = oskit_memfs_init(start_osenv(), &memfs);
if (rc) {
printf("start_bmod: Could not allocate a bmod!\n");
return 0;
}
rc = oskit_filesystem_getroot(memfs, &root);
if (rc) {
printf("start_bmod: Could not getroot the bmod!\n");
return 0;
}
oskit_filesystem_release(memfs);
bmod_populate(root, NULL, NULL);
#ifdef PTHREADS
{
oskit_dir_t *wrappeddir;
int rc;
/* Wrap it up! */
rc = oskit_wrap_dir(root,
(void (*)(void *))fs_master_lock,
(void (*)(void *))fs_master_unlock,
0, &wrappeddir);
if (rc) {
printf("oskit_wrap_dir() failed: errno 0x%x\n", rc);
exit(rc);
}
/* Don't need the dir anymore, the wrapper has a ref. */
oskit_dir_release(root);
root = wrappeddir;
}
#endif
return root;
}
|
