diff options
Diffstat (limited to 'share/man/man5/acct.5')
| -rw-r--r-- | share/man/man5/acct.5 | 78 |
1 files changed, 49 insertions, 29 deletions
diff --git a/share/man/man5/acct.5 b/share/man/man5/acct.5 index 8541081..48283a5 100644 --- a/share/man/man5/acct.5 +++ b/share/man/man5/acct.5 @@ -32,7 +32,7 @@ .\" @(#)acct.5 8.1 (Berkeley) 6/5/93 .\" $FreeBSD$ .\" -.Dd June 5, 1993 +.Dd May 15, 2007 .Dt ACCT 5 .Os .Sh NAME @@ -52,38 +52,47 @@ the kernel calls the function call to prepare and append the record to the accounting file. .Bd -literal -/* - * Accounting structures; these use a comp_t type which is a 3 bits base 8 - * exponent, 13 bit fraction ``floating point'' number. Units are 1/AHZ - * seconds. - */ -typedef u_short comp_t; - #define AC_COMM_LEN 16 -struct acct { - char ac_comm[AC_COMM_LEN]; /* command name */ - comp_t ac_utime; /* user time */ - comp_t ac_stime; /* system time */ - comp_t ac_etime; /* elapsed time */ - time_t ac_btime; /* starting time */ - uid_t ac_uid; /* user id */ - gid_t ac_gid; /* group id */ - short ac_mem; /* average memory usage */ - comp_t ac_io; /* count of IO blocks */ - dev_t ac_tty; /* controlling tty */ -#define AFORK 0x01 /* forked but not exec'ed */ -#define ASU 0x02 /* used super-user permissions */ -#define ACOMPAT 0x04 /* used compatibility mode */ -#define ACORE 0x08 /* dumped core */ -#define AXSIG 0x10 /* killed by a signal */ - char ac_flag; /* accounting flags */ -}; /* - * 1/AHZ is the granularity of the data encoded in the comp_t fields. - * This is not necessarily equal to hz. + * Accounting structure version 2 (current). + * The first byte is always zero. + * Time units are microseconds. */ -#define AHZ 64 + +struct acctv2 { + uint8_t ac_zero; /* zero identifies new version */ + uint8_t ac_version; /* record version number */ + uint16_t ac_len; /* record length */ + + char ac_comm[AC_COMM_LEN]; /* command name */ + float ac_utime; /* user time */ + float ac_stime; /* system time */ + float ac_etime; /* elapsed time */ + time_t ac_btime; /* starting time */ + uid_t ac_uid; /* user id */ + gid_t ac_gid; /* group id */ + float ac_mem; /* average memory usage */ + float ac_io; /* count of IO blocks */ + __dev_t ac_tty; /* controlling tty */ + + uint16_t ac_len2; /* record length */ + union { + __dev_t ac_align; /* force v1 compatible alignment */ + +#define AFORK 0x01 /* forked but not exec'ed */ +/* ASU is no longer supported */ +#define ASU 0x02 /* used super-user permissions */ +#define ACOMPAT 0x04 /* used compatibility mode */ +#define ACORE 0x08 /* dumped core */ +#define AXSIG 0x10 /* killed by a signal */ +#define ANVER 0x20 /* new record version */ + + uint8_t ac_flag; /* accounting flags */ + } ac_trailer; + +#define ac_flagx ac_trailer.ac_flag +}; .Ed .Pp If a terminated process was created by an @@ -100,7 +109,10 @@ and .Dv ASIG . .Dv ASU is no longer supported. +.Dv ANVER +is always set in the above structure. .Sh SEE ALSO +.Xr lastcomm 1 , .Xr acct 2 , .Xr execve 2 , .Xr sa 8 @@ -109,3 +121,11 @@ A .Nm file format appeared in .At v7 . +The current record format was introduced on May 2007. +It is backwards compatible with the previous format, +which is still documented in +.In sys/acct.h +and supported by +.Xr lastcomm 1 +and +.Xr sa 8 . |
