freebsd-skq/sys/sys/acct.h
dds 9ed27d1038 Increase precision of time values in the process accounting
structure, while maintaining backward compatibility with legacy
file and record formats.
2007-05-22 06:51:38 +00:00

126 lines
4.2 KiB
C

/*-
* Copyright (c) 1990, 1993, 1994
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* 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.
* 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.
*
* @(#)acct.h 8.4 (Berkeley) 1/9/95
* $FreeBSD$
*/
#ifndef _SYS_ACCT_H_
#define _SYS_ACCT_H_
#ifdef _KERNEL
#define float uint32_t
#endif
#define AC_COMM_LEN 16
/*
* Accounting structure version 2 (current).
* The first byte is always zero.
* Time units are microseconds.
*/
struct acctv2 {
uint8_t ac_zero; /* zero identifies new version */
uint8_t ac_version; /* record version number */
uint16_t ac_len; /* record length */
char ac_comm[AC_COMM_LEN]; /* command name */
float ac_utime; /* user time */
float ac_stime; /* system time */
float ac_etime; /* elapsed time */
time_t ac_btime; /* starting time */
uid_t ac_uid; /* user id */
gid_t ac_gid; /* group id */
float ac_mem; /* average memory usage */
float ac_io; /* count of IO blocks */
__dev_t ac_tty; /* controlling tty */
uint16_t ac_len2; /* record length */
union {
__dev_t ac_align; /* force v1 compatible alignment */
#define AFORK 0x01 /* forked but not exec'ed */
/* ASU is no longer supported */
#define ASU 0x02 /* used super-user permissions */
#define ACOMPAT 0x04 /* used compatibility mode */
#define ACORE 0x08 /* dumped core */
#define AXSIG 0x10 /* killed by a signal */
#define ANVER 0x20 /* new record version */
uint8_t ac_flag; /* accounting flags */
} ac_trailer;
#define ac_flagx ac_trailer.ac_flag
};
/*
* Legacy accounting structure (rev. 1.5-1.18).
* The first byte is always non-zero.
* Some fields use a comp_t type which is a 3 bits base 8
* exponent, 13 bit fraction ``floating point'' number.
* Units are 1/AHZV1 seconds.
*/
typedef uint16_t comp_t;
struct acctv1 {
char ac_comm[AC_COMM_LEN]; /* command name */
comp_t ac_utime; /* user time */
comp_t ac_stime; /* system time */
comp_t ac_etime; /* elapsed time */
time_t ac_btime; /* starting time */
uid_t ac_uid; /* user id */
gid_t ac_gid; /* group id */
uint16_t ac_mem; /* average memory usage */
comp_t ac_io; /* count of IO blocks */
__dev_t ac_tty; /* controlling tty */
uint8_t ac_flag; /* accounting flags */
};
/*
* 1/AHZV1 is the granularity of the data encoded in the comp_t fields.
* This is not necessarily equal to hz.
*/
#define AHZV1 64
#ifdef _KERNEL
struct thread;
int acct_process(struct thread *td);
#undef float
#endif
#endif /* !_SYS_ACCT_H_ */