minix/servers/fs/fproc.h
Jorrit Herder 322ec9ef8b Moved stime, time, times POSIX calls from FS to PM. Removed child time
accounting from kernel (now in PM).  Large amount of files in this commit
is due to system time problems during development.
2005-05-31 09:50:51 +00:00

37 lines
1.9 KiB
C

/* This is the per-process information. A slot is reserved for each potential
* process. Thus NR_PROCS must be the same as in the kernel. It is not
* possible or even necessary to tell when a slot is free here.
*/
EXTERN struct fproc {
mode_t fp_umask; /* mask set by umask system call */
struct inode *fp_workdir; /* pointer to working directory's inode */
struct inode *fp_rootdir; /* pointer to current root dir (see chroot) */
struct filp *fp_filp[OPEN_MAX];/* the file descriptor table */
uid_t fp_realuid; /* real user id */
uid_t fp_effuid; /* effective user id */
gid_t fp_realgid; /* real group id */
gid_t fp_effgid; /* effective group id */
dev_t fp_tty; /* major/minor of controlling tty */
int fp_fd; /* place to save fd if rd/wr can't finish */
char *fp_buffer; /* place to save buffer if rd/wr can't finish*/
int fp_nbytes; /* place to save bytes if rd/wr can't finish */
int fp_cum_io_partial; /* partial byte count if rd/wr can't finish */
char fp_suspended; /* set to indicate process hanging */
char fp_revived; /* set to indicate process being revived */
char fp_task; /* which task is proc suspended on */
char fp_sesldr; /* true if proc is a session leader */
pid_t fp_pid; /* process id */
long fp_cloexec; /* bit map for POSIX Table 6-2 FD_CLOEXEC */
} fproc[NR_PROCS];
/* Field values. */
#define NOT_SUSPENDED 0 /* process is not suspended on pipe or task */
#define SUSPENDED 1 /* process is suspended on pipe or task */
#define NOT_REVIVING 0 /* process is not being revived */
#define REVIVING 1 /* process is being revived from suspension */
#define PID_FREE 0 /* process slot free */
#define PID_SERVER (-1) /* process has become a server */
/* Check is process number is acceptable - includes system processes. */
#define isokprocnr(n) ((unsigned)((n)+NR_TASKS) < NR_PROCS + NR_TASKS)