sys/dev/raidframe/rf_etimer.h

   1 /*      $NetBSD: rf_etimer.h,v 1.10 2005/12/11 12:23:37 christos 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_ */