1 /* $NetBSD: rf_etimer.h,v 1.11 2006/06/07 22:33:37 kardel Exp $ */ 2 /* 3 * Copyright (c) 1995 Carnegie-Mellon University. 4 * All rights reserved. 5 * 6 * Author: Mark Holland 7 * 8 * Permission to use, copy, modify and distribute this software and 9 * its documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie the 26 * rights to redistribute these changes. 27 */ 28 29 #ifndef _RF__RF_TIMER_H_ 30 #define _RF__RF_TIMER_H_ 31 32 #include "rf_utils.h" 33 34 #include <sys/time.h> 35 #include <sys/kernel.h> 36 37 struct RF_Etimer_s { 38 struct timeval st; 39 struct timeval et; 40 struct timeval diff; 41 }; 42 43 #define RF_ETIMER_START(_t_) \ 44 { \ 45 memset(&(_t_), 0, sizeof (_t_)); \ 46 getmicrouptime(&(_t_).st); \ 47 } 48 49 #define RF_ETIMER_STOP(_t_) \ 50 { \ 51 getmicrouptime(&(_t_).et); \ 52 } 53 54 #define RF_ETIMER_EVAL(_t_) \ 55 { \ 56 RF_TIMEVAL_DIFF(&(_t_).st, &(_t_).et, &(_t_).diff) \ 57 } 58 59 #define RF_ETIMER_VAL_US(_t_) (RF_TIMEVAL_TO_US((_t_).diff)) 60 #define RF_ETIMER_VAL_MS(_t_) (RF_TIMEVAL_TO_US((_t_).diff)/1000) 61 62 #endif /* !_RF__RF_TIMER_H_ */ 63