| 1 | /* |
| 2 | * tvarith.h |
| 3 | * - static inline functions for doing arithmetic on timevals |
| 4 | */ |
| 5 | /* |
| 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.) |
| 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; |
| 34 | tmp.tv_usec += (ms%1000)*1000; |
| 35 | tmp.tv_sec += ms/1000; |
| 36 | if (tmp.tv_usec >= 1000000) { tmp.tv_sec++; tmp.tv_usec -= 1000000; } |
| 37 | *tv_io= tmp; |
| 38 | } |
| 39 | |
| 40 | #endif |