subr.c revision 1591 
1/*-
2 * Copyright (c) 1988, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static char sccsid[] = "@(#)subr.c	8.1 (Berkeley) 6/6/93";
36#endif /* not lint */
37
38#include <sys/param.h>
39#include <sys/file.h>
40#include <sys/user.h>
41#include <sys/proc.h>
42#include <sys/time.h>
43#include <sys/ktrace.h>
44#include <stdio.h>
45#include "ktrace.h"
46
47getpoints(s)
48	char *s;
49{
50	int facs = 0;
51
52	while (*s) {
53		switch(*s) {
54		case 'c':
55			facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;
56			break;
57		case 'n':
58			facs |= KTRFAC_NAMEI;
59			break;
60		case 'i':
61			facs |= KTRFAC_GENIO;
62			break;
63		case 's':
64			facs |= KTRFAC_PSIG;
65			break;
66		case 'w':
67			facs |= KTRFAC_CSW;
68			break;
69		case '+':
70			facs |= DEF_POINTS;
71			break;
72		default:
73			return (-1);
74		}
75		s++;
76	}
77	return (facs);
78}
79
80timevaladd(t1, t2)
81	struct timeval *t1, *t2;
82{
83	t1->tv_sec += t2->tv_sec;
84	t1->tv_usec += t2->tv_usec;
85	timevalfix(t1);
86}
87
88timevalsub(t1, t2)
89	struct timeval *t1, *t2;
90{
91	t1->tv_sec -= t2->tv_sec;
92	t1->tv_usec -= t2->tv_usec;
93	timevalfix(t1);
94}
95
96timevalfix(t1)
97	struct timeval *t1;
98{
99	if (t1->tv_usec < 0) {
100		t1->tv_sec--;
101		t1->tv_usec += 1000000;
102	}
103	if (t1->tv_usec >= 1000000) {
104		t1->tv_sec++;
105		t1->tv_usec -= 1000000;
106	}
107}
108