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1 | /* -*-c-*- |
2 | * |
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3 | * Watch a file for changes |
4 | * |
5 | * (c) 2001 Straylight/Edgeware |
6 | */ |
7 | |
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8 | /*----- Licensing notice --------------------------------------------------* |
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9 | * |
10 | * This file is part of the mLib utilities library. |
11 | * |
12 | * mLib is free software; you can redistribute it and/or modify |
13 | * it under the terms of the GNU Library General Public License as |
14 | * published by the Free Software Foundation; either version 2 of the |
15 | * License, or (at your option) any later version. |
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16 | * |
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17 | * mLib is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 | * GNU Library General Public License for more details. |
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21 | * |
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22 | * You should have received a copy of the GNU Library General Public |
23 | * License along with mLib; if not, write to the Free |
24 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
25 | * MA 02111-1307, USA. |
26 | */ |
27 | |
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28 | #ifndef MLIB_FWATCH_H |
29 | #define MLIB_FWATCH_H |
30 | |
31 | #ifdef __cplusplus |
32 | extern "C" { |
33 | #endif |
34 | |
35 | /*----- Header files ------------------------------------------------------*/ |
36 | |
37 | #include <sys/types.h> |
38 | #include <sys/stat.h> |
39 | |
40 | /*----- Data structures ---------------------------------------------------*/ |
41 | |
42 | typedef struct fwatch { |
43 | int err; |
44 | dev_t dev; |
45 | ino_t ino; |
46 | time_t mtime; |
47 | off_t size; |
48 | mode_t mode; |
49 | uid_t uid; |
50 | gid_t gid; |
51 | } fwatch; |
52 | |
53 | /*----- Functions provided ------------------------------------------------*/ |
54 | |
55 | /* --- @fwatch_init@, @fwatch_update@, etc --- * |
56 | * |
57 | * Arguments: @fwatch *f@ = pointer to an @fwatch@ structure |
58 | * @const char *name@ = name of the file to watch |
59 | * @int fd@ = a file descriptor to watch |
60 | * |
61 | * Returns: The @update@ functions return nonzero if the file has |
62 | * changed. |
63 | * |
64 | * Use: Stores information about a file which can be used to watch |
65 | * for changes. The structures may be freed without telling |
66 | * anyone. |
67 | */ |
68 | |
69 | extern void fwatch_init(fwatch */*f*/, const char */*name*/); |
70 | extern void fwatch_initfd(fwatch */*f*/, int /*fd*/); |
71 | extern int fwatch_update(fwatch */*f*/, const char */*name*/); |
72 | extern int fwatch_updatefd(fwatch */*f*/, int /*fd*/); |
73 | |
74 | /*----- That's all, folks -------------------------------------------------*/ |
75 | |
76 | #ifdef __cplusplus |
77 | } |
78 | #endif |
79 | |
80 | #endif |