root / prex-0.9.0 / usr / server / fs / ramfs / ramfs.h @ 03e9c04a
History | View | Annotate | Download (2.7 KB)
1 | 03e9c04a | Brad Neuman | /*
|
---|---|---|---|
2 | * Copyright (c) 2006-2007, Kohsuke Ohtani
|
||
3 | * All rights reserved.
|
||
4 | *
|
||
5 | * Redistribution and use in source and binary forms, with or without
|
||
6 | * modification, are permitted provided that the following conditions
|
||
7 | * are met:
|
||
8 | * 1. Redistributions of source code must retain the above copyright
|
||
9 | * notice, this list of conditions and the following disclaimer.
|
||
10 | * 2. Redistributions in binary form must reproduce the above copyright
|
||
11 | * notice, this list of conditions and the following disclaimer in the
|
||
12 | * documentation and/or other materials provided with the distribution.
|
||
13 | * 3. Neither the name of the author nor the names of any co-contributors
|
||
14 | * may be used to endorse or promote products derived from this software
|
||
15 | * without specific prior written permission.
|
||
16 | *
|
||
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
27 | * SUCH DAMAGE.
|
||
28 | */
|
||
29 | |||
30 | #ifndef _RAMFS_H
|
||
31 | #define _RAMFS_H
|
||
32 | |||
33 | #include <sys/cdefs.h> |
||
34 | #include <sys/prex.h> |
||
35 | #include <sys/types.h> |
||
36 | |||
37 | /* #define DEBUG_RAMFS 1 */
|
||
38 | |||
39 | #ifdef DEBUG_RAMFS
|
||
40 | #define DPRINTF(a) dprintf a
|
||
41 | #define ASSERT(e) dassert(e)
|
||
42 | #else
|
||
43 | #define DPRINTF(a) do {} while (0) |
||
44 | #define ASSERT(e)
|
||
45 | #endif
|
||
46 | |||
47 | #if CONFIG_FS_THREADS > 1 |
||
48 | #define malloc(s) malloc_r(s)
|
||
49 | #define free(p) free_r(p)
|
||
50 | #else
|
||
51 | #define mutex_init(m) do {} while (0) |
||
52 | #define mutex_destroy(m) do {} while (0) |
||
53 | #define mutex_lock(m) do {} while (0) |
||
54 | #define mutex_unlock(m) do {} while (0) |
||
55 | #define mutex_trylock(m) do {} while (0) |
||
56 | #endif
|
||
57 | |||
58 | /*
|
||
59 | * File/directory node for RAMFS
|
||
60 | */
|
||
61 | struct ramfs_node {
|
||
62 | struct ramfs_node *rn_next; /* next node in the same directory */ |
||
63 | struct ramfs_node *rn_child; /* first child node */ |
||
64 | int rn_type; /* file or directory */ |
||
65 | char *rn_name; /* name (null-terminated) */ |
||
66 | size_t rn_namelen; /* length of name not including terminator */
|
||
67 | size_t rn_size; /* file size */
|
||
68 | char *rn_buf; /* buffer to the file data */ |
||
69 | size_t rn_bufsize; /* allocated buffer size */
|
||
70 | }; |
||
71 | |||
72 | __BEGIN_DECLS |
||
73 | struct ramfs_node *ramfs_allocate_node(char *name, int type); |
||
74 | void ramfs_free_node(struct ramfs_node *node); |
||
75 | __END_DECLS |
||
76 | |||
77 | #endif /* !_RAMFS_H */ |