2 * BSD Process Accounting for Linux - Definitions
4 * Author: Marco van Wieringen (mvw@planets.elm.net)
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.
11 * Copyright (C) 1995 - 1997 Marco van Wieringen - ELM Consultancy B.V.
18 #include <linux/types.h>
20 #include <asm/param.h>
21 #include <asm/byteorder.h>
24 * comp_t is a 16-bit "floating" point number with a 3-bit base 8
25 * exponent and a 13-bit fraction.
26 * comp2_t is 24-bit with 5-bit base 2 exponent and 20 bit fraction
27 * (leading 1 not stored).
28 * See linux/kernel/acct.c for the specific encoding systems used.
32 typedef __u32 comp2_t;
35 * accounting file record
37 * This structure contains all of the information written out to the
38 * process accounting file whenever a process exits.
45 char ac_flag; /* Flags */
46 char ac_version; /* Always set to ACCT_VERSION */
47 /* for binary compatibility back until 2.0 */
48 __u16 ac_uid16; /* LSB of Real User ID */
49 __u16 ac_gid16; /* LSB of Real Group ID */
50 __u16 ac_tty; /* Control Terminal */
51 __u32 ac_btime; /* Process Creation Time */
52 comp_t ac_utime; /* User Time */
53 comp_t ac_stime; /* System Time */
54 comp_t ac_etime; /* Elapsed Time */
55 comp_t ac_mem; /* Average Memory Usage */
56 comp_t ac_io; /* Chars Transferred */
57 comp_t ac_rw; /* Blocks Read or Written */
58 comp_t ac_minflt; /* Minor Pagefaults */
59 comp_t ac_majflt; /* Major Pagefaults */
60 comp_t ac_swaps; /* Number of Swaps */
61 /* m68k had no padding here. */
62 __u16 ac_ahz; /* AHZ */
63 __u32 ac_exitcode; /* Exitcode */
64 char ac_comm[ACCT_COMM + 1]; /* Command Name */
65 __u8 ac_etime_hi; /* Elapsed Time MSB */
66 __u16 ac_etime_lo; /* Elapsed Time LSB */
67 __u32 ac_uid; /* Real User ID */
68 __u32 ac_gid; /* Real Group ID */
73 char ac_flag; /* Flags */
74 char ac_version; /* Always set to ACCT_VERSION */
75 __u16 ac_tty; /* Control Terminal */
76 __u32 ac_exitcode; /* Exitcode */
77 __u32 ac_uid; /* Real User ID */
78 __u32 ac_gid; /* Real Group ID */
79 __u32 ac_pid; /* Process ID */
80 __u32 ac_ppid; /* Parent Process ID */
81 __u32 ac_btime; /* Process Creation Time */
82 float ac_etime; /* Elapsed Time */
83 comp_t ac_utime; /* User Time */
84 comp_t ac_stime; /* System Time */
85 comp_t ac_mem; /* Average Memory Usage */
86 comp_t ac_io; /* Chars Transferred */
87 comp_t ac_rw; /* Blocks Read or Written */
88 comp_t ac_minflt; /* Minor Pagefaults */
89 comp_t ac_majflt; /* Major Pagefaults */
90 comp_t ac_swaps; /* Number of Swaps */
91 char ac_comm[ACCT_COMM]; /* Command Name */
97 /* bit set when the process ... */
98 #define AFORK 0x01 /* ... executed fork, but did not exec */
99 #define ASU 0x02 /* ... used super-user privileges */
100 #define ACOMPAT 0x04 /* ... used compatibility mode (VAX only not used) */
101 #define ACORE 0x08 /* ... dumped core */
102 #define AXSIG 0x10 /* ... was killed by a signal */
105 #define ACCT_BYTEORDER 0x80 /* accounting file is big endian */
107 #define ACCT_BYTEORDER 0x00 /* accounting file is little endian */
110 #define ACCT_VERSION 2
114 #endif /* _LINUX_ACCT_H */