source: mainline/uspace/srv/fs/tmpfs/tmpfs.h@ 0ee4322

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 0ee4322 was 0ee4322, checked in by Jakub Jermar <jakub@…>, 17 years ago

Add ftruncate() and support for VFS_TRUNCATE to VFS and TMPFS.

  • Property mode set to 100644
File size: 2.4 KB
Line 
1/*
2 * Copyright (c) 2008 Jakub Jermar
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 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup fs
30 * @{
31 */
32
33#ifndef TMPFS_TMPFS_H_
34#define TMPFS_TMPFS_H_
35
36#include <ipc/ipc.h>
37#include <libfs.h>
38#include <atomic.h>
39#include <sys/types.h>
40#include <bool.h>
41#include <libadt/hash_table.h>
42
43#define dprintf(...) printf(__VA_ARGS__)
44
45typedef struct tmpfs_dentry {
46 unsigned long index; /**< TMPFS node index. */
47 link_t dh_link; /**< Dentries hash table link. */
48 struct tmpfs_dentry *parent;
49 struct tmpfs_dentry *sibling;
50 struct tmpfs_dentry *child;
51 char *name;
52 enum {
53 TMPFS_NONE,
54 TMPFS_FILE,
55 TMPFS_DIRECTORY
56 } type;
57 size_t size; /**< File size if type is TMPFS_FILE. */
58 void *data; /**< File content's if type is TMPFS_FILE. */
59} tmpfs_dentry_t;
60
61extern fs_reg_t tmpfs_reg;
62
63extern void tmpfs_lookup(ipc_callid_t, ipc_call_t *);
64extern void tmpfs_read(ipc_callid_t, ipc_call_t *);
65extern void tmpfs_write(ipc_callid_t, ipc_call_t *);
66extern void tmpfs_truncate(ipc_callid_t, ipc_call_t *);
67
68#endif
69
70/**
71 * @}
72 */
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