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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: tv.h,v 1.2 1999/05/05 18:50:31 mdw Exp $ |
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4 | * |
5 | * Manipulation of timeval structures |
6 | * |
7 | * (c) 1998 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 |
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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. |
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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 |
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22 | * GNU Library General Public License for more details. |
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23 | * |
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24 | * You should have received a copy of the GNU Library General Public |
25 | * License along with mLib; if not, write to the Free Software |
26 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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27 | */ |
28 | |
29 | /*----- Revision history --------------------------------------------------* |
30 | * |
31 | * $Log: tv.h,v $ |
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32 | * Revision 1.2 1999/05/05 18:50:31 mdw |
33 | * Change licensing conditions to LGPL. |
34 | * |
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35 | * Revision 1.1 1998/11/25 23:30:01 mdw |
36 | * New file. |
37 | * |
38 | */ |
39 | |
40 | #ifndef TV_H |
41 | #define TV_H |
42 | |
43 | #ifdef __cplusplus |
44 | extern "C" { |
45 | #endif |
46 | |
47 | /*----- Header files ------------------------------------------------------*/ |
48 | |
49 | #include <sys/time.h> |
50 | |
51 | /*----- Functions provided ------------------------------------------------*/ |
52 | |
53 | /* --- @tv_add@ --- * |
54 | * |
55 | * Arguments: @struct timeval *dst@ = destination block |
56 | * @const struct timeval *a, *b@ = source blocks |
57 | * |
58 | * Returns: --- |
59 | * |
60 | * Use: Adds two timevals. |
61 | */ |
62 | |
63 | extern void tv_add(struct timeval */*dst*/, |
64 | const struct timeval */*a*/, |
65 | const struct timeval */*b*/); |
66 | |
67 | /* --- @tv_sub@ --- * |
68 | * |
69 | * Arguments: @struct timeval *dst@ = destination block |
70 | * @const struct timeval *a, *b@ = source blocks |
71 | * |
72 | * Returns: --- |
73 | * |
74 | * Use: Subtracts two timevals. |
75 | */ |
76 | |
77 | extern void tv_sub(struct timeval */*dst*/, |
78 | const struct timeval */*a*/, |
79 | const struct timeval */*b*/); |
80 | |
81 | /* --- @tv_cmp@ --- * |
82 | * |
83 | * Arguments: @const struct timeval *a, *b@ = source blocks |
84 | * |
85 | * Returns: Less than, equal to, or greater than zero. |
86 | * |
87 | * Use: Compares two timevals. |
88 | */ |
89 | |
90 | extern int tv_cmp(const struct timeval */*a*/, |
91 | const struct timeval */*b*/); |
92 | |
93 | /*----- That's all, folks -------------------------------------------------*/ |
94 | |
95 | #ifdef __cplusplus |
96 | } |
97 | #endif |
98 | |
99 | #endif |