include/uapi/linux/acct.h

   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 _UAPI_LINUX_ACCT_H
  16 #define _UAPI_LINUX_ACCT_H
  17
  18 #include <linux/types.h>
  19
  20 #include <asm/param.h>
  21 #include <asm/byteorder.h>
  22
  23 /*
  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.
  29  */
  30
  31 typedef __u16   comp_t;
  32 typedef __u32   comp2_t;
  33
  34 /*
  35  *   accounting file record
  36  *
  37  *   This structure contains all of the information written out to the
  38  *   process accounting file whenever a process exits.
  39  */
  40
  41 #define ACCT_COMM       16
  42
  43 struct acct
  44 {
  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 #if !defined(CONFIG_M68K) || !defined(__KERNEL__)
  63         __u16           ac_ahz;                 /* AHZ */
  64 #endif
  65         __u32           ac_exitcode;            /* Exitcode */
  66         char            ac_comm[ACCT_COMM + 1]; /* Command Name */
  67         __u8            ac_etime_hi;            /* Elapsed Time MSB */
  68         __u16           ac_etime_lo;            /* Elapsed Time LSB */
  69         __u32           ac_uid;                 /* Real User ID */
  70         __u32           ac_gid;                 /* Real Group ID */
  71 };
  72
  73 struct acct_v3
  74 {
  75         char            ac_flag;                /* Flags */
  76         char            ac_version;             /* Always set to ACCT_VERSION */
  77         __u16           ac_tty;                 /* Control Terminal */
  78         __u32           ac_exitcode;            /* Exitcode */
  79         __u32           ac_uid;                 /* Real User ID */
  80         __u32           ac_gid;                 /* Real Group ID */
  81         __u32           ac_pid;                 /* Process ID */
  82         __u32           ac_ppid;                /* Parent Process ID */
  83         __u32           ac_btime;               /* Process Creation Time */
  84 #ifdef __KERNEL__
  85         __u32           ac_etime;               /* Elapsed Time */
  86 #else
  87         float           ac_etime;               /* Elapsed Time */
  88 #endif
  89         comp_t          ac_utime;               /* User Time */
  90         comp_t          ac_stime;               /* System Time */
  91         comp_t          ac_mem;                 /* Average Memory Usage */
  92         comp_t          ac_io;                  /* Chars Transferred */
  93         comp_t          ac_rw;                  /* Blocks Read or Written */
  94         comp_t          ac_minflt;              /* Minor Pagefaults */
  95         comp_t          ac_majflt;              /* Major Pagefaults */
  96         comp_t          ac_swaps;               /* Number of Swaps */
  97         char            ac_comm[ACCT_COMM];     /* Command Name */
  98 };
  99
 100 /*
 101  *  accounting flags
 102  */
 103                                 /* bit set when the process ... */
 104 #define AFORK           0x01    /* ... executed fork, but did not exec */
 105 #define ASU             0x02    /* ... used super-user privileges */
 106 #define ACOMPAT         0x04    /* ... used compatibility mode (VAX only not used) */
 107 #define ACORE           0x08    /* ... dumped core */
 108 #define AXSIG           0x10    /* ... was killed by a signal */
 109
 110 #ifdef __BIG_ENDIAN
 111 #define ACCT_BYTEORDER  0x80    /* accounting file is big endian */
 112 #else
 113 #define ACCT_BYTEORDER  0x00    /* accounting file is little endian */
 114 #endif
 115
 116 #ifndef __KERNEL__
 117 #define ACCT_VERSION    2
 118 #define AHZ             (HZ)
 119 #endif  /* __KERNEL */
 120
 121
 122 #endif /* _UAPI_LINUX_ACCT_H */