usr/src/usr.bin/ktrace/subr.c

/*-
 * Copyright (c) 1988, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char sccsid[] = "@(#)subr.c      8.2 (Berkeley) 4/28/95";
#endif /* not lint */

#include <sys/param.h>
#include <sys/file.h>
#include <sys/user.h>
#include <sys/proc.h>
#include <sys/time.h>
#include <sys/ktrace.h>

#include <stdio.h>

#include "ktrace.h"

getpoints(s)
        char *s;
{
        int facs = 0;

        while (*s) {
                switch(*s) {
                case 'c':
                        facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;
                        break;
                case 'n':
                        facs |= KTRFAC_NAMEI;
                        break;
                case 'i':
                        facs |= KTRFAC_GENIO;
                        break;
                case 's':
                        facs |= KTRFAC_PSIG;
                        break;
                case 'w':
                        facs |= KTRFAC_CSW;
                        break;
                case '+':
                        facs |= DEF_POINTS;
                        break;
                default:
                        return (-1);
                }
                s++;
        }
        return (facs);
}

timevaladd(t1, t2)
        struct timeval *t1, *t2;
{
        t1->tv_sec += t2->tv_sec;
        t1->tv_usec += t2->tv_usec;
        timevalfix(t1);
}

timevalsub(t1, t2)
        struct timeval *t1, *t2;
{
        t1->tv_sec -= t2->tv_sec;
        t1->tv_usec -= t2->tv_usec;
        timevalfix(t1);
}

timevalfix(t1)
        struct timeval *t1;
{
        if (t1->tv_usec < 0) {
                t1->tv_sec--;
                t1->tv_usec += 1000000;
        }
        if (t1->tv_usec >= 1000000) {
                t1->tv_sec++;
                t1->tv_usec -= 1000000;
        }
}