/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * 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.
 * 3. 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 _SYS_ACCT_H_
#define _SYS_ACCT_H_

#ifdef _KERNEL
#define float uint32_t
#else
#include <sys/types.h>
#endif

#define AC_COMM_LEN 16

/*
 * Accounting structure version 3 (current).
 * The first byte is always zero.
 * Time units are microseconds.
 */

struct acctv3 {
        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 */
        uint32_t  ac_pad0;
        uint16_t  ac_len2;              /* record length */
        union {
                uint32_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
};

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 */
        uint32_t  ac_tty;               /* controlling tty */

        uint16_t  ac_len2;              /* record length */
        union {
                uint32_t   ac_align;    /* force v1 compatible alignment */
                uint8_t   ac_flag;      /* accounting flags */
        } ac_trailer;
};

/*
 * 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 */
        uint32_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_ */