ktrace.tproj/subr.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*-
  25  * Copyright (c) 1988, 1993
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgement:
  38  *      This product includes software developed by the University of
  39  *      California, Berkeley and its contributors.
  40  * 4. Neither the name of the University nor the names of its contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  */
  56
  57 #include <sys/param.h>
  58 #include <sys/file.h>
  59 #include <sys/user.h>
  60 #include <sys/proc.h>
  61 #include <sys/time.h>
  62 #include <sys/ktrace.h>
  63
  64 #include <stdio.h>
  65
  66 #include "ktrace.h"
  67
  68 getpoints(s)
  69         char *s;
  70 {
  71         int facs = 0;
  72
  73         while (*s) {
  74                 switch(*s) {
  75                 case 'c':
  76                         facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;
  77                         break;
  78                 case 'n':
  79                         facs |= KTRFAC_NAMEI;
  80                         break;
  81                 case 'i':
  82                         facs |= KTRFAC_GENIO;
  83                         break;
  84                 case 's':
  85                         facs |= KTRFAC_PSIG;
  86                         break;
  87                 case 'w':
  88                         facs |= KTRFAC_CSW;
  89                         break;
  90                 case '+':
  91                         facs |= DEF_POINTS;
  92                         break;
  93                 default:
  94                         return (-1);
  95                 }
  96                 s++;
  97         }
  98         return (facs);
  99 }
 100
 101 timevaladd(t1, t2)
 102         struct timeval *t1, *t2;
 103 {
 104         t1->tv_sec += t2->tv_sec;
 105         t1->tv_usec += t2->tv_usec;
 106         timevalfix(t1);
 107 }
 108
 109 timevalsub(t1, t2)
 110         struct timeval *t1, *t2;
 111 {
 112         t1->tv_sec -= t2->tv_sec;
 113         t1->tv_usec -= t2->tv_usec;
 114         timevalfix(t1);
 115 }
 116
 117 timevalfix(t1)
 118         struct timeval *t1;
 119 {
 120         if (t1->tv_usec < 0) {
 121                 t1->tv_sec--;
 122                 t1->tv_usec += 1000000;
 123         }
 124         if (t1->tv_usec >= 1000000) {
 125                 t1->tv_sec++;
 126                 t1->tv_usec -= 1000000;
 127         }
 128 }