http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/acct.h

/* * BSD Process Accounting for Linux - Definitions * * Author: Marco van Wieringen (mvw@planets.elm.net) * * This header file contains the definitions needed to implement * BSD-style process accounting. The kernel accounting code and all * user-level programs that try to do something useful with the * process accounting log must include this file. * * Copyright (C) 1995 - 1997 Marco van Wieringen - ELM Consultancy B.V. * */ #ifndef _LINUX_ACCT_H #define _LINUX_ACCT_H #include <linux/types.h> #include <asm/param.h> #include <asm/byteorder.h> /* * comp_t is a 16-bit "floating" point number with a 3-bit base 8 * exponent and a 13-bit fraction. * comp2_t is 24-bit with 5-bit base 2 exponent and 20 bit fraction * (leading 1 not stored). * See linux/kernel/acct.c for the specific encoding systems used. */ typedef __u16 comp_t; typedef __u32 comp2_t; /* * accounting file record * * This structure contains all of the information written out to the * process accounting file whenever a process exits. */ #define ACCT_COMM 16 struct acct { char ac_flag; /* Flags */ char ac_version; /* Always set to ACCT_VERSION */ /* for binary compatibility back until 2.0 */ __u16 ac_uid16; /* LSB of Real User ID */ __u16 ac_gid16; /* LSB of Real Group ID */ __u16 ac_tty; /* Control Terminal */ __u32 ac_btime; /* Process Creation Time */ comp_t ac_utime; /* User Time */ comp_t ac_stime; /* System Time */ comp_t ac_etime; /* Elapsed Time */ comp_t ac_mem; /* Average Memory Usage */ comp_t ac_io; /* Chars Transferred */ comp_t ac_rw; /* Blocks Read or Written */ comp_t ac_minflt; /* Minor Pagefaults */ comp_t ac_majflt; /* Major Pagefaults */ comp_t ac_swaps; /* Number of Swaps */ /* m68k had no padding here. */ #if !defined(CONFIG_M68K) || !defined(__KERNEL__) __u16 ac_ahz; /* AHZ */ #endif __u32 ac_exitcode; /* Exitcode */ char ac_comm[ACCT_COMM + 1]; /* Command Name */ __u8 ac_etime_hi; /* Elapsed Time MSB */ __u16 ac_etime_lo; /* Elapsed Time LSB */ __u32 ac_uid; /* Real User ID */ __u32 ac_gid; /* Real Group ID */ }; struct acct_v3 { char ac_flag; /* Flags */ char ac_version; /* Always set to ACCT_VERSION */ __u16 ac_tty; /* Control Terminal */ __u32 ac_exitcode; /* Exitcode */ __u32 ac_uid; /* Real User ID */ __u32 ac_gid; /* Real Group ID */ __u32 ac_pid; /* Process ID */ __u32 ac_ppid; /* Parent Process ID */ __u32 ac_btime; /* Process Creation Time */ #ifdef __KERNEL__ __u32 ac_etime; /* Elapsed Time */ #else float ac_etime; /* Elapsed Time */ #endif comp_t ac_utime; /* User Time */ comp_t ac_stime; /* System Time */ comp_t ac_mem; /* Average Memory Usage */ comp_t ac_io; /* Chars Transferred */ comp_t ac_rw; /* Blocks Read or Written */ comp_t ac_minflt; /* Minor Pagefaults */ comp_t ac_majflt; /* Major Pagefaults */ comp_t ac_swaps; /* Number of Swaps */ char ac_comm[ACCT_COMM]; /* Command Name */ }; /* * accounting flags */ /* bit set when the process ... */ #define AFORK 0x01 /* ... executed fork, but did not exec */ #define ASU 0x02 /* ... used super-user privileges */ #define ACOMPAT 0x04 /* ... used compatibility mode (VAX only not used) */ #define ACORE 0x08 /* ... dumped core */ #define AXSIG 0x10 /* ... was killed by a signal */ #ifdef __BIG_ENDIAN #define ACCT_BYTEORDER 0x80 /* accounting file is big endian */ #else #define ACCT_BYTEORDER 0x00 /* accounting file is little endian */ #endif #ifdef __KERNEL__ #include <linux/config.h> #ifdef CONFIG_BSD_PROCESS_ACCT struct vfsmount; struct super_block; extern void acct_auto_close_mnt(struct vfsmount *m); extern void acct_auto_close(struct super_block *sb); extern void acct_process(long exitcode); extern void acct_update_integrals(struct task_struct *tsk); extern void acct_clear_integrals(struct task_struct *tsk); #else #define acct_auto_close_mnt(x) do { } while (0) #define acct_auto_close(x) do { } while (0) #define acct_process(x) do { } while (0) #define acct_update_integrals(x) do { } while (0) #define acct_clear_integrals(task) do { } while (0) #endif /* * ACCT_VERSION numbers as yet defined: * 0: old format (until 2.6.7) with 16 bit uid/gid * 1: extended variant (binary compatible on M68K) * 2: extended variant (binary compatible on everything except M68K) * 3: new binary incompatible format (64 bytes) * 4: new binary incompatible format (128 bytes) * 5: new binary incompatible format (128 bytes, second half) * */ #ifdef CONFIG_BSD_PROCESS_ACCT_V3 #define ACCT_VERSION 3 #define AHZ 100 typedef struct acct_v3 acct_t; #else #ifdef CONFIG_M68K #define ACCT_VERSION 1 #else #define ACCT_VERSION 2 #endif #define AHZ (USER_HZ) typedef struct acct acct_t; #endif #else #define ACCT_VERSION 2 #define AHZ (HZ) #endif /* __KERNEL */ #ifdef __KERNEL__ /* * Yet another set of HZ to *HZ helper functions. * See <linux/jiffies.h> for the original. */ static inline u32 jiffies_to_AHZ(unsigned long x) { #if (TICK_NSEC % (NSEC_PER_SEC / AHZ)) == 0 return x / (HZ / AHZ); #else u64 tmp = (u64)x * TICK_NSEC; do_div(tmp, (NSEC_PER_SEC / AHZ)); return (long)tmp; #endif } static inline u64 nsec_to_AHZ(u64 x) { #if (NSEC_PER_SEC % AHZ) == 0 do_div(x, (NSEC_PER_SEC / AHZ)); #elif (AHZ % 512) == 0 x *= AHZ/512; do_div(x, (NSEC_PER_SEC / 512)); #else /* * max relative error 5.7e-8 (1.8s per year) for AHZ <= 1024, * overflow after 64.99 years. * exact for AHZ=60, 72, 90, 120, 144, 180, 300, 600, 900, ... */ x *= 9; do_div(x, (unsigned long)((9ull * NSEC_PER_SEC + (AHZ/2)) / AHZ)); #endif return x; } #endif /* __KERNEL */ #endif /* _LINUX_ACCT_H */