chiark / gitweb /
Use mdwopt from common files distrib.
[mLib] / tv.h
CommitLineData
247239be 1/* -*-c-*-
2 *
3 * $Id: tv.h,v 1.1 1998/11/25 23:30:01 mdw Exp $
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
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (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 General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with mLib; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 */
28
29/*----- Revision history --------------------------------------------------*
30 *
31 * $Log: tv.h,v $
32 * Revision 1.1 1998/11/25 23:30:01 mdw
33 * New file.
34 *
35 */
36
37#ifndef TV_H
38#define TV_H
39
40#ifdef __cplusplus
41 extern "C" {
42#endif
43
44/*----- Header files ------------------------------------------------------*/
45
46#include <sys/time.h>
47
48/*----- Functions provided ------------------------------------------------*/
49
50/* --- @tv_add@ --- *
51 *
52 * Arguments: @struct timeval *dst@ = destination block
53 * @const struct timeval *a, *b@ = source blocks
54 *
55 * Returns: ---
56 *
57 * Use: Adds two timevals.
58 */
59
60extern void tv_add(struct timeval */*dst*/,
61 const struct timeval */*a*/,
62 const struct timeval */*b*/);
63
64/* --- @tv_sub@ --- *
65 *
66 * Arguments: @struct timeval *dst@ = destination block
67 * @const struct timeval *a, *b@ = source blocks
68 *
69 * Returns: ---
70 *
71 * Use: Subtracts two timevals.
72 */
73
74extern void tv_sub(struct timeval */*dst*/,
75 const struct timeval */*a*/,
76 const struct timeval */*b*/);
77
78/* --- @tv_cmp@ --- *
79 *
80 * Arguments: @const struct timeval *a, *b@ = source blocks
81 *
82 * Returns: Less than, equal to, or greater than zero.
83 *
84 * Use: Compares two timevals.
85 */
86
87extern int tv_cmp(const struct timeval */*a*/,
88 const struct timeval */*b*/);
89
90/*----- That's all, folks -------------------------------------------------*/
91
92#ifdef __cplusplus
93 }
94#endif
95
96#endif