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1 | /* |
2 | * tvarith.h |
3 | * - static inline functions for doing arithmetic on timevals |
4 | */ |
5 | /* |
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6 | * This file is part of adns, which is |
7 | * Copyright (C) 1997-2000,2003,2006 Ian Jackson |
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.) |
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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 |
14 | * the Free Software Foundation; either version 2, or (at your option) |
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 |
23 | * along with this program; if not, write to the Free Software Foundation, |
24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
25 | */ |
26 | |
27 | #ifndef ADNS_TVARITH_H_INCLUDED |
28 | #define ADNS_TVARITH_H_INCLUDED |
29 | |
30 | static inline void timevaladd(struct timeval *tv_io, long ms) { |
31 | struct timeval tmp; |
32 | assert(ms>=0); |
33 | tmp= *tv_io; |
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34 | tmp.tv_usec += (ms%1000)*1000; |
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35 | tmp.tv_sec += ms/1000; |
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36 | if (tmp.tv_usec >= 1000000) { tmp.tv_sec++; tmp.tv_usec -= 1000000; } |
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37 | *tv_io= tmp; |
38 | } |
39 | |
40 | #endif |