sysdeps/unix/sysv/linux/sys/acct.h

   1 /* Copyright (C) 1996-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _SYS_ACCT_H
  19 #define _SYS_ACCT_H     1
  20
  21 #include <sys/types.h>
  22 #include <stdint.h>
  23 #include <bits/endian.h>
  24 #include <bits/types/time_t.h>
  25
  26 __BEGIN_DECLS
  27
  28 #define ACCT_COMM 16
  29
  30 /*
  31   comp_t is a 16-bit "floating" point number with a 3-bit base 8
  32   exponent and a 13-bit fraction. See linux/kernel/acct.c for the
  33   specific encoding system used.
  34 */
  35
  36 typedef uint16_t comp_t;
  37
  38 struct acct
  39 {
  40   char ac_flag;                 /* Flags.  */
  41   uint16_t ac_uid;              /* Real user ID.  */
  42   uint16_t ac_gid;              /* Real group ID.  */
  43   uint16_t ac_tty;              /* Controlling terminal.  */
  44   uint32_t ac_btime;            /* Beginning time.  */
  45   comp_t ac_utime;              /* User time.  */
  46   comp_t ac_stime;              /* System time.  */
  47   comp_t ac_etime;              /* Elapsed time.  */
  48   comp_t ac_mem;                /* Average memory usage.  */
  49   comp_t ac_io;                 /* Chars transferred.  */
  50   comp_t ac_rw;                 /* Blocks read or written.  */
  51   comp_t ac_minflt;             /* Minor pagefaults.  */
  52   comp_t ac_majflt;             /* Major pagefaults.  */
  53   comp_t ac_swaps;              /* Number of swaps.  */
  54   uint32_t ac_exitcode;         /* Process exitcode.  */
  55   char ac_comm[ACCT_COMM+1];    /* Command name.  */
  56   char ac_pad[10];              /* Padding bytes.  */
  57 };
  58
  59
  60 struct acct_v3
  61 {
  62   char ac_flag;                 /* Flags */
  63   char ac_version;              /* Always set to ACCT_VERSION */
  64   uint16_t ac_tty;              /* Control Terminal */
  65   uint32_t ac_exitcode;         /* Exitcode */
  66   uint32_t ac_uid;              /* Real User ID */
  67   uint32_t ac_gid;              /* Real Group ID */
  68   uint32_t ac_pid;              /* Process ID */
  69   uint32_t ac_ppid;             /* Parent Process ID */
  70   uint32_t ac_btime;            /* Process Creation Time */
  71   float ac_etime;               /* Elapsed Time */
  72   comp_t ac_utime;              /* User Time */
  73   comp_t ac_stime;              /* System Time */
  74   comp_t ac_mem;                /* Average Memory Usage */
  75   comp_t ac_io;                 /* Chars Transferred */
  76   comp_t ac_rw;                 /* Blocks Read or Written */
  77   comp_t ac_minflt;             /* Minor Pagefaults */
  78   comp_t ac_majflt;             /* Major Pagefaults */
  79   comp_t ac_swaps;              /* Number of Swaps */
  80   char ac_comm[ACCT_COMM];      /* Command Name */
  81 };
  82
  83
  84 enum
  85   {
  86     AFORK = 0x01,               /* Has executed fork, but no exec.  */
  87     ASU = 0x02,                 /* Used super-user privileges.  */
  88     ACORE = 0x08,               /* Dumped core.  */
  89     AXSIG = 0x10,               /* Killed by a signal.  */
  90     AGROUP = 0x20               /* Was the last task of the process
  91                                    (task group).  */
  92   };
  93
  94 #if __BYTE_ORDER == __BIG_ENDIAN
  95 # define ACCT_BYTEORDER 0x80    /* Accounting file is big endian.  */
  96 #else
  97 # define ACCT_BYTEORDER 0x00    /* Accounting file is little endian.  */
  98 #endif
  99
 100 #define AHZ     100
 101
 102
 103 /* Switch process accounting on and off.  */
 104 extern int acct (const char *__filename) __THROW;
 105
 106 __END_DECLS
 107
 108 #endif  /* sys/acct.h */