usr/src/slowsys/h/acct.h

/*
 * Accounting structures
 */

typedef unsigned short comp_t;  /* "floating pt": 3 bits base 8 exp, 13 bits fraction */
struct  acct
{
        char    ac_comm[10];            /* Accounting command name */
        comp_t  ac_utime;               /* Accounting user time */
        comp_t  ac_stime;               /* Accounting system time */
        comp_t  ac_etime;               /* Accounting elapsed time */
        time_t  ac_btime;               /* Beginning time */
        short   ac_uid;                 /* Accounting user ID */
        short   ac_gid;                 /* Accounting group ID */
        short   ac_mem;                 /* average memory usage */
        comp_t  ac_io;                  /* number of disk IO blocks */
        dev_t   ac_tty;                 /* control typewriter */
        char    ac_flag;                /* Accounting flag */
};

extern  struct  acct    acctbuf;
extern  struct  inode   *acctp;         /* inode of accounting file */

#define AFORK   01              /* has executed fork, but no exec */
#define ASU     02              /* used super-user privileges */