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comparison src/libmlk-core/core/vfs.h @ 332:8eee6f92e9ce

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core: implement vfs and vfs-directory
author David Demelier <markand@malikania.fr>
date Wed, 13 Oct 2021 15:03:18 +0200
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children 979960e65f76
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331:5c3f2aa95343 332:8eee6f92e9ce
1 /*
2 * vfs.h -- virtual file system abstraction
3 *
4 * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #ifndef MLK_CORE_VFS_H
20 #define MLK_CORE_VFS_H
21
22 #include "core.h"
23
24 struct vfs_file;
25
26 struct vfs {
27 void *data;
28 int (*open)(struct vfs *, struct vfs_file *, const char *, const char *);
29 void (*finish)(struct vfs *);
30 };
31
32 struct vfs_file {
33 void *data;
34 size_t (*read)(struct vfs_file *, void *, size_t);
35 size_t (*write)(struct vfs_file *, const void *, size_t);
36 int (*flush)(struct vfs_file *);
37 void (*finish)(struct vfs_file *);
38 };
39
40 CORE_BEGIN_DECLS
41
42 /* vfs */
43
44 int
45 vfs_open(struct vfs *, struct vfs_file *, const char *, const char *);
46
47 void
48 vfs_finish(struct vfs *);
49
50 /* vfs_file */
51
52 size_t
53 vfs_file_read(struct vfs_file *, void *, size_t);
54
55 size_t
56 vfs_file_write(struct vfs_file *, void *, size_t);
57
58 int
59 vfs_file_flush(struct vfs_file *);
60
61 void
62 vfs_file_finish(struct vfs_file *);
63
64 CORE_END_DECLS
65
66 #endif /* MLK_CORE_VFS_H */