rf_etimer.h

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    1 /*      $NetBSD: rf_etimer.h,v 1.8 2001/10/04 17:42:29 oster 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                         int s;                                  \
   46                         memset(&(_t_), 0, sizeof (_t_));        \
   47                         s = splclock();                         \
   48                         (_t_).st = mono_time;                   \
   49                         splx(s);                                \
   50                 }
   51 
   52 #define RF_ETIMER_STOP(_t_)                                     \
   53                 {                                               \
   54                         int s;                                  \
   55                         s = splclock();                         \
   56                         (_t_).et = mono_time;                   \
   57                         splx(s);                                \
   58                 }
   59 
   60 #define RF_ETIMER_EVAL(_t_)                                     \
   61         {                                                       \
   62                 RF_TIMEVAL_DIFF(&(_t_).st, &(_t_).et, &(_t_).diff) \
   63         }
   64 
   65 #define RF_ETIMER_VAL_US(_t_)      (RF_TIMEVAL_TO_US((_t_).diff))
   66 #define RF_ETIMER_VAL_MS(_t_)      (RF_TIMEVAL_TO_US((_t_).diff)/1000)
   67 
   68 #endif                          /* !_RF__RF_TIMER_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/dev/raidframe/rf_etimer.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/raidframe/rf_etimer.h