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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: fwatch.h,v 1.2 2004/04/08 01:36:11 mdw Exp $ |
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4 | * |
5 | * Watch a file for changes |
6 | * |
7 | * (c) 2001 Straylight/Edgeware |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of the mLib utilities library. |
13 | * |
14 | * mLib is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU Library General Public License as |
16 | * published by the Free Software Foundation; either version 2 of the |
17 | * License, or (at your option) any later version. |
18 | * |
19 | * mLib is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU Library General Public License for more details. |
23 | * |
24 | * You should have received a copy of the GNU Library General Public |
25 | * License along with mLib; if not, write to the Free |
26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
27 | * MA 02111-1307, USA. |
28 | */ |
29 | |
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30 | #ifndef MLIB_FWATCH_H |
31 | #define MLIB_FWATCH_H |
32 | |
33 | #ifdef __cplusplus |
34 | extern "C" { |
35 | #endif |
36 | |
37 | /*----- Header files ------------------------------------------------------*/ |
38 | |
39 | #include <sys/types.h> |
40 | #include <sys/stat.h> |
41 | |
42 | /*----- Data structures ---------------------------------------------------*/ |
43 | |
44 | typedef struct fwatch { |
45 | int err; |
46 | dev_t dev; |
47 | ino_t ino; |
48 | time_t mtime; |
49 | off_t size; |
50 | mode_t mode; |
51 | uid_t uid; |
52 | gid_t gid; |
53 | } fwatch; |
54 | |
55 | /*----- Functions provided ------------------------------------------------*/ |
56 | |
57 | /* --- @fwatch_init@, @fwatch_update@, etc --- * |
58 | * |
59 | * Arguments: @fwatch *f@ = pointer to an @fwatch@ structure |
60 | * @const char *name@ = name of the file to watch |
61 | * @int fd@ = a file descriptor to watch |
62 | * |
63 | * Returns: The @update@ functions return nonzero if the file has |
64 | * changed. |
65 | * |
66 | * Use: Stores information about a file which can be used to watch |
67 | * for changes. The structures may be freed without telling |
68 | * anyone. |
69 | */ |
70 | |
71 | extern void fwatch_init(fwatch */*f*/, const char */*name*/); |
72 | extern void fwatch_initfd(fwatch */*f*/, int /*fd*/); |
73 | extern int fwatch_update(fwatch */*f*/, const char */*name*/); |
74 | extern int fwatch_updatefd(fwatch */*f*/, int /*fd*/); |
75 | |
76 | /*----- That's all, folks -------------------------------------------------*/ |
77 | |
78 | #ifdef __cplusplus |
79 | } |
80 | #endif |
81 | |
82 | #endif |