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/**
* @file clock.h
* @brief libteredo internal low-precision (1 Hz) clock
*
* This is way faster than calling time() for every packet transmitted or
* received. The first implementation was using POSIX timers, but it might
* be a bit overkill to spawn a thread every second to simply increment an
* integer. Also, POSIX timers with thread event delivery has a terrible
* portability at the time of writing (June 2006). Basically, recent
* GNU/Linux have it, and that's about it... no uClibc support, only in
* -current for FreeBSD...
*/
/***********************************************************************
* Copyright © 2006 Rémi Denis-Courmont. *
* This program is free software; you can redistribute and/or modify *
* it under the terms of the GNU General Public License as published *
* by the Free Software Foundation; 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, you can get it from: *
* http://www.gnu.org/copyleft/gpl.html *
***********************************************************************/
#ifndef LIBTEREDO_CLOCK_H
# define LIBTEREDO_CLOCK_H
/**
* Low-precision clock time value
*/
typedef unsigned long teredo_clock_t;
# ifdef __cplusplus
extern "C" {
# endif
/**
* @return current clock value; undefined if the clock is not running.
*/
teredo_clock_t teredo_clock (void);
# ifdef __cplusplus
}
# endif /* ifdef __cplusplus */
#endif /* ifndef LIBTEREDO_CLOCK_H */
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