The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/acct.h

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    1 /*-
    2  * Copyright (c) 1990, 1993, 1994
    3  *      The Regents of the University of California.  All rights reserved.
    4  * (c) UNIX System Laboratories, Inc.
    5  * All or some portions of this file are derived from material licensed
    6  * to the University of California by American Telephone and Telegraph
    7  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
    8  * the permission of UNIX System Laboratories, Inc.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 4. Neither the name of the University nor the names of its contributors
   19  *    may be used to endorse or promote products derived from this software
   20  *    without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  *      @(#)acct.h      8.4 (Berkeley) 1/9/95
   35  * $FreeBSD: releng/11.1/sys/sys/acct.h 169857 2007-05-22 06:51:38Z dds $
   36  */
   37 
   38 #ifndef _SYS_ACCT_H_
   39 #define _SYS_ACCT_H_
   40 
   41 #ifdef _KERNEL
   42 #define float uint32_t
   43 #endif
   44 
   45 #define AC_COMM_LEN 16
   46 
   47 /*
   48  * Accounting structure version 2 (current).
   49  * The first byte is always zero.
   50  * Time units are microseconds.
   51  */
   52 
   53 struct acctv2 {
   54         uint8_t   ac_zero;              /* zero identifies new version */
   55         uint8_t   ac_version;           /* record version number */
   56         uint16_t  ac_len;               /* record length */
   57 
   58         char      ac_comm[AC_COMM_LEN]; /* command name */
   59         float     ac_utime;             /* user time */
   60         float     ac_stime;             /* system time */
   61         float     ac_etime;             /* elapsed time */
   62         time_t    ac_btime;             /* starting time */
   63         uid_t     ac_uid;               /* user id */
   64         gid_t     ac_gid;               /* group id */
   65         float     ac_mem;               /* average memory usage */
   66         float     ac_io;                /* count of IO blocks */
   67         __dev_t   ac_tty;               /* controlling tty */
   68 
   69         uint16_t  ac_len2;              /* record length */
   70         union {
   71                 __dev_t   ac_align;     /* force v1 compatible alignment */
   72 
   73 #define AFORK   0x01                    /* forked but not exec'ed */
   74 /* ASU is no longer supported */
   75 #define ASU     0x02                    /* used super-user permissions */
   76 #define ACOMPAT 0x04                    /* used compatibility mode */
   77 #define ACORE   0x08                    /* dumped core */
   78 #define AXSIG   0x10                    /* killed by a signal */
   79 #define ANVER   0x20                    /* new record version */
   80 
   81                 uint8_t   ac_flag;      /* accounting flags */
   82         } ac_trailer;
   83 
   84 #define ac_flagx ac_trailer.ac_flag
   85 };
   86 
   87 
   88 /*
   89  * Legacy accounting structure (rev. 1.5-1.18).
   90  * The first byte is always non-zero.
   91  * Some fields use a comp_t type which is a 3 bits base 8
   92  * exponent, 13 bit fraction ``floating point'' number.
   93  * Units are 1/AHZV1 seconds.
   94  */
   95 
   96 typedef uint16_t comp_t;
   97 
   98 struct acctv1 {
   99         char      ac_comm[AC_COMM_LEN]; /* command name */
  100         comp_t    ac_utime;             /* user time */
  101         comp_t    ac_stime;             /* system time */
  102         comp_t    ac_etime;             /* elapsed time */
  103         time_t    ac_btime;             /* starting time */
  104         uid_t     ac_uid;               /* user id */
  105         gid_t     ac_gid;               /* group id */
  106         uint16_t  ac_mem;               /* average memory usage */
  107         comp_t    ac_io;                /* count of IO blocks */
  108         __dev_t   ac_tty;               /* controlling tty */
  109         uint8_t   ac_flag;              /* accounting flags */
  110 };
  111 
  112 /*
  113  * 1/AHZV1 is the granularity of the data encoded in the comp_t fields.
  114  * This is not necessarily equal to hz.
  115  */
  116 #define AHZV1   64
  117 
  118 #ifdef _KERNEL
  119 struct thread;
  120 
  121 int     acct_process(struct thread *td);
  122 #undef float
  123 #endif
  124 
  125 #endif /* !_SYS_ACCT_H_ */

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