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annotate src/libmlk-core/core/vfs.h @ 423:63ebfa352ae1

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core: use err.h in font
author David Demelier <markand@malikania.fr>
date Sat, 15 Oct 2022 14:00:38 +0200
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1 /*
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2 * vfs.h -- virtual file system abstraction
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3 *
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4 * Copyright (c) 2020-2022 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #ifndef MLK_CORE_VFS_H
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20 #define MLK_CORE_VFS_H
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21
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22 #include <stddef.h>
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24 #include "core.h"
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25
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26 struct vfs_file;
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27
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28 struct vfs {
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29 void *data;
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30 int (*open)(struct vfs *, struct vfs_file *, const char *, const char *);
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31 void (*finish)(struct vfs *);
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32 };
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33
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34 struct vfs_file {
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35 void *data;
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36 size_t (*read)(struct vfs_file *, void *, size_t);
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37 size_t (*write)(struct vfs_file *, const void *, size_t);
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38 int (*flush)(struct vfs_file *);
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39 void (*finish)(struct vfs_file *);
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40 };
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41
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42 CORE_BEGIN_DECLS
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43
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44 /* vfs */
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45
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46 int
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47 vfs_open(struct vfs *, struct vfs_file *, const char *, const char *);
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49 int
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50 vfs_ok(struct vfs *);
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51
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52 void
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53 vfs_finish(struct vfs *);
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54
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55 /* vfs_file */
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57 int
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58 vfs_file_ok(struct vfs_file *);
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60 size_t
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61 vfs_file_read(struct vfs_file *, void *, size_t);
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63 char *
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64 vfs_file_aread(struct vfs_file *, size_t *);
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66 size_t
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67 vfs_file_write(struct vfs_file *, void *, size_t);
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69 int
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70 vfs_file_flush(struct vfs_file *);
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71
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72 void
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73 vfs_file_finish(struct vfs_file *);
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74
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75 CORE_END_DECLS
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76
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77 #endif /* MLK_CORE_VFS_H */