1/*
2 *  BSD Process Accounting for Linux - Definitions
3 *
4 *  Author: Marco van Wieringen (mvw@planets.elm.net)
5 *
6 *  This header file contains the definitions needed to implement
7 *  BSD-style process accounting. The kernel accounting code and all
8 *  user-level programs that try to do something useful with the
9 *  process accounting log must include this file.
10 *
11 *  Copyright (C) 1995 - 1997 Marco van Wieringen - ELM Consultancy B.V.
12 *
13 */
14
15#ifndef _LINUX_ACCT_H
16#define _LINUX_ACCT_H
17
18#include <linux/types.h>
19
20/*
21 *  comp_t is a 16-bit "floating" point number with a 3-bit base 8
22 *  exponent and a 13-bit fraction. See linux/kernel/acct.c for the
23 *  specific encoding system used.
24 */
25
26typedef __u16	comp_t;
27
28/*
29 *   accounting file record
30 *
31 *   This structure contains all of the information written out to the
32 *   process accounting file whenever a process exits.
33 */
34
35#define ACCT_COMM	16
36
37struct acct
38{
39	char		ac_flag;		/* Accounting Flags */
40/*
41 *	No binary format break with 2.0 - but when we hit 32bit uid we'll
42 *	have to bite one
43 */
44	__u16		ac_uid;			/* Accounting Real User ID */
45	__u16		ac_gid;			/* Accounting Real Group ID */
46	__u16		ac_tty;			/* Accounting Control Terminal */
47	__u32		ac_btime;		/* Accounting Process Creation Time */
48	comp_t		ac_utime;		/* Accounting User Time */
49	comp_t		ac_stime;		/* Accounting System Time */
50	comp_t		ac_etime;		/* Accounting Elapsed Time */
51	comp_t		ac_mem;			/* Accounting Average Memory Usage */
52	comp_t		ac_io;			/* Accounting Chars Transferred */
53	comp_t		ac_rw;			/* Accounting Blocks Read or Written */
54	comp_t		ac_minflt;		/* Accounting Minor Pagefaults */
55	comp_t		ac_majflt;		/* Accounting Major Pagefaults */
56	comp_t		ac_swaps;		/* Accounting Number of Swaps */
57	__u32		ac_exitcode;		/* Accounting Exitcode */
58	char		ac_comm[ACCT_COMM + 1];	/* Accounting Command Name */
59	char		ac_pad[10];		/* Accounting Padding Bytes */
60};
61
62/*
63 *  accounting flags
64 */
65				/* bit set when the process ... */
66#define AFORK		0x01	/* ... executed fork, but did not exec */
67#define ASU		0x02	/* ... used super-user privileges */
68#define ACOMPAT		0x04	/* ... used compatibility mode (VAX only not used) */
69#define ACORE		0x08	/* ... dumped core */
70#define AXSIG		0x10	/* ... was killed by a signal */
71
72#define AHZ		100
73
74#ifdef __KERNEL__
75
76#include <linux/config.h>
77
78#ifdef CONFIG_BSD_PROCESS_ACCT
79extern void acct_auto_close(kdev_t dev);
80extern int acct_process(long exitcode);
81#else
82#define acct_auto_close(x)	do { } while (0)
83#define acct_process(x)		do { } while (0)
84#endif
85
86#endif	/* __KERNEL */
87
88#endif	/* _LINUX_ACCT_H */
89