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001: /*
002:  *  BSD Process Accounting for Linux - Definitions
003:  *
004:  *  Author: Marco van Wieringen (mvw@planets.elm.net)
005:  *
006:  *  This header file contains the definitions needed to implement
007:  *  BSD-style process accounting. The kernel accounting code and all
008:  *  user-level programs that try to do something useful with the
009:  *  process accounting log must include this file.
010:  *
011:  *  Copyright (C) 1995 - 1997 Marco van Wieringen - ELM Consultancy B.V.
012:  *
013:  */
014: 
015: #ifndef _LINUX_ACCT_H
016: #define _LINUX_ACCT_H
017: 
018: #include <linux/types.h>
019: 
020: #include <asm/param.h>
021: #include <asm/byteorder.h>
022: 
023: /* 
024:  *  comp_t is a 16-bit "floating" point number with a 3-bit base 8
025:  *  exponent and a 13-bit fraction.
026:  *  comp2_t is 24-bit with 5-bit base 2 exponent and 20 bit fraction
027:  *  (leading 1 not stored).
028:  *  See linux/kernel/acct.c for the specific encoding systems used.
029:  */
030: 
031: typedef __u16   comp_t;
032: typedef __u32   comp2_t;
033: 
034: /*
035:  *   accounting file record
036:  *
037:  *   This structure contains all of the information written out to the
038:  *   process accounting file whenever a process exits.
039:  */
040: 
041: #define ACCT_COMM       16
042: 
043: struct acct
044: {
045:         char            ac_flag;                /* Flags */
046:         char            ac_version;             /* Always set to ACCT_VERSION */
047:         /* for binary compatibility back until 2.0 */
048:         __u16           ac_uid16;               /* LSB of Real User ID */
049:         __u16           ac_gid16;               /* LSB of Real Group ID */
050:         __u16           ac_tty;                 /* Control Terminal */
051:         __u32           ac_btime;               /* Process Creation Time */
052:         comp_t          ac_utime;               /* User Time */
053:         comp_t          ac_stime;               /* System Time */
054:         comp_t          ac_etime;               /* Elapsed Time */
055:         comp_t          ac_mem;                 /* Average Memory Usage */
056:         comp_t          ac_io;                  /* Chars Transferred */
057:         comp_t          ac_rw;                  /* Blocks Read or Written */
058:         comp_t          ac_minflt;              /* Minor Pagefaults */
059:         comp_t          ac_majflt;              /* Major Pagefaults */
060:         comp_t          ac_swaps;               /* Number of Swaps */
061: /* m68k had no padding here. */
062:         __u16           ac_ahz;                 /* AHZ */
063:         __u32           ac_exitcode;            /* Exitcode */
064:         char            ac_comm[ACCT_COMM + 1]; /* Command Name */
065:         __u8            ac_etime_hi;            /* Elapsed Time MSB */
066:         __u16           ac_etime_lo;            /* Elapsed Time LSB */
067:         __u32           ac_uid;                 /* Real User ID */
068:         __u32           ac_gid;                 /* Real Group ID */
069: };
070: 
071: struct acct_v3
072: {
073:         char            ac_flag;                /* Flags */
074:         char            ac_version;             /* Always set to ACCT_VERSION */
075:         __u16           ac_tty;                 /* Control Terminal */
076:         __u32           ac_exitcode;            /* Exitcode */
077:         __u32           ac_uid;                 /* Real User ID */
078:         __u32           ac_gid;                 /* Real Group ID */
079:         __u32           ac_pid;                 /* Process ID */
080:         __u32           ac_ppid;                /* Parent Process ID */
081:         __u32           ac_btime;               /* Process Creation Time */
082:         float           ac_etime;               /* Elapsed Time */
083:         comp_t          ac_utime;               /* User Time */
084:         comp_t          ac_stime;               /* System Time */
085:         comp_t          ac_mem;                 /* Average Memory Usage */
086:         comp_t          ac_io;                  /* Chars Transferred */
087:         comp_t          ac_rw;                  /* Blocks Read or Written */
088:         comp_t          ac_minflt;              /* Minor Pagefaults */
089:         comp_t          ac_majflt;              /* Major Pagefaults */
090:         comp_t          ac_swaps;               /* Number of Swaps */
091:         char            ac_comm[ACCT_COMM];     /* Command Name */
092: };
093: 
094: /*
095:  *  accounting flags
096:  */
097:                                 /* bit set when the process ... */
098: #define AFORK           0x01    /* ... executed fork, but did not exec */
099: #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 */
103: 
104: #ifdef __BIG_ENDIAN
105: #define ACCT_BYTEORDER  0x80    /* accounting file is big endian */
106: #else
107: #define ACCT_BYTEORDER  0x00    /* accounting file is little endian */
108: #endif
109: 
110: #define ACCT_VERSION    2
111: #define AHZ             (HZ)
112: 
113: 
114: #endif  /* _LINUX_ACCT_H */
115: 

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