1 /* $OpenBSD: rf_etimer.h,v 1.7 2004/06/24 19:35:24 tholo Exp $ */
2 /* $NetBSD: rf_etimer.h,v 1.4 1999/08/13 03:26:55 oster Exp $ */
3
4 /*
5 * Copyright (c) 1995 Carnegie-Mellon University.
6 * All rights reserved.
7 *
8 * Author: Mark Holland
9 *
10 * Permission to use, copy, modify and distribute this software and
11 * its documentation is hereby granted, provided that both the copyright
12 * notice and this permission notice appear in all copies of the
13 * software, derivative works or modified versions, and any portions
14 * thereof, and that both notices appear in supporting documentation.
15 *
16 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19 *
20 * Carnegie Mellon requests users of this software to return to
21 *
22 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
23 * School of Computer Science
24 * Carnegie Mellon University
25 * Pittsburgh PA 15213-3890
26 *
27 * any improvements or extensions that they make and grant Carnegie the
28 * rights to redistribute these changes.
29 */
30
31 #ifndef _RF__RF_TIMER_H_
32 #define _RF__RF_TIMER_H_
33
34
35 #include "rf_options.h"
36 #include "rf_utils.h"
37
38 #include <sys/time.h>
39
40 struct RF_Etimer_s {
41 struct timeval st;
42 struct timeval et;
43 struct timeval diff;
44 };
45
46 #if defined(_KERNEL)
47 #include <sys/kernel.h>
48
49 #define RF_ETIMER_START(_t_) \
50 do { \
51 bzero(&(_t_), sizeof (_t_)); \
52 getmicrouptime(&(_t_).st); \
53 } while (0)
54
55 #define RF_ETIMER_STOP(_t_) \
56 do { \
57 getmicrouptime(&(_t_).et); \
58 } while (0)
59
60 #define RF_ETIMER_EVAL(_t_) \
61 do { \
62 RF_TIMEVAL_DIFF(&(_t_).st, &(_t_).et, &(_t_).diff); \
63 } while (0)
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 /* _KERNEL */
69
70 #endif /* !_RF__RF_TIMER_H_ */