Licensing: Update copyright dates for Ian Jackson
[adns] / src / tvarith.h
CommitLineData
2953d358 1/*
2 * tvarith.h
3 * - static inline functions for doing arithmetic on timevals
4 */
5/*
ae8cc977 6 * This file is part of adns, which is
26e1c3d6 7 * Copyright (C) 1997-2000,2003,2006,2014 Ian Jackson
ae8cc977 8 * Copyright (C) 1999-2000,2003,2006 Tony Finch
9 * Copyright (C) 1991 Massachusetts Institute of Technology
10 * (See the file INSTALL for full details.)
2953d358 11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
7f8bbe29 14 * the Free Software Foundation; either version 3, or (at your option)
2953d358 15 * any later version.
16 *
17 * This program 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 General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
8c09a4c6 23 * along with this program; if not, write to the Free Software Foundation.
2953d358 24 */
25
26#ifndef ADNS_TVARITH_H_INCLUDED
27#define ADNS_TVARITH_H_INCLUDED
28
29static inline void timevaladd(struct timeval *tv_io, long ms) {
30 struct timeval tmp;
31 assert(ms>=0);
32 tmp= *tv_io;
41559f53 33 tmp.tv_usec += (ms%1000)*1000;
2953d358 34 tmp.tv_sec += ms/1000;
41559f53 35 if (tmp.tv_usec >= 1000000) { tmp.tv_sec++; tmp.tv_usec -= 1000000; }
2953d358 36 *tv_io= tmp;
37}
38
39#endif