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NeoStats/include/adnstvarith.h

49 lines
1.5 KiB
C

/* NeoStats - IRC Statistical Services
** Copyright (c) 1999-2008 Adam Rutter, Justin Hammond, Mark Hetherington
** http://www.neostats.net/
**
** Based on adns, which is
** Copyright (C) 1997-2008 Ian Jackson <ian@davenant.greenend.org.uk>
** Copyright (C) 1999-2008 Tony Finch <dot@dotat.at>
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
** USA
**
** NeoStats CVS Identification
** $Id$
*/
/*
* tvarith.h
* - static inline functions for doing arithmetic on timevals
*/
#ifndef ADNS_TVARITH_H_INCLUDED
#define ADNS_TVARITH_H_INCLUDED
static inline void timevaladd(struct timeval *tv_io, long ms)
{
struct timeval tmp;
assert(ms >= 0);
tmp = *tv_io;
tmp.tv_usec += (ms % 1000) * 1000;
tmp.tv_sec += ms / 1000;
if (tmp.tv_usec >= 1000000) {
tmp.tv_sec++;
tmp.tv_usec -= 1000000;
}
*tv_io = tmp;
}
#endif